Updated on 2023/10/17

写真a

 
ARIYOSHI Kingo
 
Organization
Graduate School of Engineering Division of Science and Engineering for Materials, Chemistry and Biology Associate Professor
School of Engineering Department of Chemistry and Bioengineering
Title
Associate Professor
Affiliation
Institute of Engineering
Contact information
メールアドレス
Affiliation campus
Sugimoto Campus

Position

  • Graduate School of Engineering Division of Science and Engineering for Materials, Chemistry and Biology 

    Associate Professor  2022.04 - Now

  • School of Engineering Department of Chemistry and Bioengineering 

    Associate Professor  2022.04 - Now

Degree

  • Doctor of Engineering ( Osaka City University )

Research Areas

  • Nanotechnology/Materials / Structural materials and functional materials  / 電池機能材料

Research Interests

  • リチウムイオン電池

  • リチウムインサーション材料

Research subject summary

  • Lithium-ion battery

Research Career

  • Solid state chemistry and electrochemistry of lithium transition metal oxides

    Lithium-ion batteries, Lithium insertion materials  Individual

    1900.04 

Professional Memberships

  • The Ceramic Society of Japan

      Domestic

  • The Chemical Society of Japan

      Domestic

  • Electrochemical Society of Japan

      Domestic

  • Electrochemical Society

      Overseas

Awards

  • 電池技術委員会賞

    2003  

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    Country:Japan

Education

  • Osaka City University   Doctor's Course   Graduated/Completed

    2001.04 - 2004

  • Osaka City University     Graduated/Completed

    1994.04 - 1999.03

Papers

  • Quantum Chemical Analysis of the Correlation between Electrode Potential and Redox Center of Li-Insertion Materials: Olivine, Layered and Spinel Structures, and Aqua-Complexes Reviewed

    Ariyoshi K.

    ChemElectroChem   10 ( 19 )   2023.10

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/celc.202300333

  • Effects of overvoltage and temperature on the lithium insertion kinetics of MgMn<inf>2</inf>O<inf>4</inf> Reviewed

    Kingo Ariyoshi, Shumpei Masuda

    Journal of Electroanalytical Chemistry   943   2023.08( ISSN:1572-6657

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    Publishing type:Research paper (scientific journal)  

    The power capability of lithium-ion batteries strongly depends on the reaction kinetics of the lithium insertion material used in the electrodes. Previously, chronoamperometry revealed that the lithium insertion reaction of MgMn2O4 differs between static and dynamic processes and that the dynamic process consists of a nucleation–growth process followed by diffusion. Herein, we present the overvoltage and temperature dependence of the reaction rate of MgMn2O4 through chronoamperometry results under different applied voltages and temperatures. The rate constant of each process is determined by fitting the measured current profile to a solid-state reaction model. The rate constant of the nucleation-growth process exhibits an Arrhenius relationship with temperature and a Tafel-like relationship with overvoltage, whereas that of diffusion exhibits an Arrhenius relationship with temperature and does not depend on overvoltage. These dependencies are different because nucleation–growth is a reaction process on the particle surface, whereas diffusion is a reaction process occurring inside the particle. Accordingly, the rate-determining step of lithium insertion under various operating conditions is discussed.

    DOI: 10.1016/j.jelechem.2023.117615

  • Effect of Cations on the Electrochemical Properties of Insertion Reactions Using Prussian Blue Analogues Reviewed

    Ariyoshi K.

    Journal of Physical Chemistry C   127 ( 31 )   15114 - 15121   2023.08( ISSN:19327447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.3c03838

  • Improving the rate capability of LiNi<inf>0.5</inf>Mn<inf>1.3</inf>Ti<inf>0.2</inf>O<inf>4</inf> by modifying the lithium insertion mechanism Reviewed

    Kingo Ariyoshi, Jun Sugawa

    Electrochimica Acta   455   2023.07( ISSN:0013-4686

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    Publishing type:Research paper (scientific journal)  

    Since lithium-ion batteries are becoming increasingly popular, we aimed to increase the power density of lithium-ion batteries by improving the rate capability of lithium insertion electrodes by controlling the reaction mechanism of lithium insertion materials. LiNi0.5Mn1.3Ti0.2O4 (Ti-LNMO), in which a part of Mn4+ in LiNi0.5Mn1.5O4 (LNMO) was replaced by Ti4+, was synthesized and proceeded in a single-phase reaction over the entire region. This resulted in two types of LNMOs with the same spinel structures and solid-state redox reactions of Ni2+/Ni4+, each with different reaction mechanisms. According to rate-capability tests of these two types of LNMOs, the Ti-LNMO exhibited superior rate capability than the LNMO without Ti-substitution, which demonstrated that high-power capabilities could be achieved by controlling the reaction mechanism. Furthermore, the solid-state Li-ion diffusion coefficient in the LNMOs was determined from the rate-capability using the diluted electrode method, and that of Ti-LNMO was more than three times greater than that of the LNMO. These results reveal that the lithium insertion mechanism is important for the kinetics of lithium insertion reaction.

    DOI: 10.1016/j.electacta.2023.142425

  • Asymmetric Lithium Extraction and Insertion in High Voltage Spinel at Fast Rate Reviewed

    Muhammad Mominur Rahman, Kangxuan Xia, Xiao-Qing Yang, Kingo Ariyoshi, Enyuan Hu

    NANO LETTERS   2023.07( ISSN:1530-6984

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    Publishing type:Research paper (scientific journal)  

    Spinel-structured ordered-LiNi0.5Mn1.5O4 (o-LNMO) has experienced a resurgence of interest inthecontext of reducing scarce elements such as cobalt from the lithium-ionbatteries. O-LNMO undergoes two two-phase reactions at slow rates.However, it is not known if such phenomenon also applies at fast rates.Herein, we investigate the rate-dependent phase transition behaviorof o-LNMO through in operando time-resolved X-raydiffraction. The results indicate that a narrow region of the solidsolution reaction exists for charge and discharge at both slow andfast rates. The overall phase transition is highly asymmetric at fastrates. During fast charge, it is a particle-by-particle mechanismresulting from an asynchronized reaction among the particles. Duringfast discharge, it is likely a core-shell mechanism involvingtransition from Li0+x Ni0.5Mn1.5O4 to Li1+x Ni0.5Mn1.5O4 in the outer layer of particles.The Li0.5Ni0.5Mn1.5O4 phaseis suppressed during fast discharge and appears only through Li redistributionupon relaxation.

    DOI: 10.1021/acs.nanolett.3c02042

  • Crosstalk Reactions Induce Positive- and Negative-Electrode Resistance Increments in Li[Li1/3Ti5/3]O-4/LiNi1/2Mn3/2O4 Cells Reviewed

    Taichi Nakamura, Kingo Ariyoshi

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   170 ( 3 )   2023.03( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    With the rapid utilization of lithium-ion batteries (LIBs) in various applications, including automobiles, battery-lifetime extension has become an important issue. A major cause of capacity fading in batteries is the increase in the positive- and negative-electrode resistance, mainly due to the formation of highly resistive electrode films. Previous studies indicate that crosstalk reactions significantly influence the resistance-increase mechanism. Although previous publications confirm that the rate of positive-electrode resistance-increase is greatly affected by the negative-electrode potential, the quantitative relationship between the crosstalk reaction and cell-resistance increment remains unexplained. In this study, potentiostatic charge tests were performed on Li[Li1/3Ti5/3]O-4/LiNi1/2Mn3/2O4 cells by varying the charging voltage. Although the number of side reactions increased on increasing the charging voltage, the increase in cell resistance remained almost same; the Li[Li1/3Ti5/3]O-4 and LiNi1/2Mn3/2O4 electrode resistances increased significantly after potentiostatic charging. To explain the resistance-increase behavior of the cell, a phenomenological model incorporating the crosstalk reaction was proposed. Subsequently, this model was used to calculate the increase in cell resistance. The simulation results were consistent with the experimental results, indicating that the model could be used to quantitatively predict the increase in cell resistance.

    DOI: 10.1149/1945-7111/acc695

  • Impact of the electrode potential of negative electrode on the increase in resistance of LiNi<inf>1/2</inf>Mn<inf>3/2</inf>O<inf>4</inf> positive electrode Reviewed

    Nakamura T.

    Electrochimica Acta   439   2023.01( ISSN:00134686

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.electacta.2022.141731

  • Elucidation of Side Reactions in Lithium-ion Batteries with Electrolyte Decomposition Products via Overdischarge for Li[Li<sub>1/3</sub>Ti<sub>5/3</sub>]O<sub>4</sub>/Li[Li<sub>0.1</sub>Al<sub>0.1</sub>Mn<sub>1.8</sub>]O<sub>4</sub> Cells with an Imbalanced State-of-Charge Reviewed

    NAKAMURA Taichi, ARIYOSHI Kingo

    Electrochemistry   advpub ( 0 )   2023( ISSN:13443542

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.5796/electrochemistry.23-00004

  • Synthesis and Characterization of W-Nb Oxides (WO<inf>3</inf>-Nb<inf>2</inf>O<inf>5</inf>) for Large-Volumetric-Capacity Negative Electrodes Reviewed

    Kingo Ariyoshi, Naoto Ohji

    ACS Applied Energy Materials   2023

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    Publishing type:Research paper (scientific journal)  

    To develop lithium insertion materials used in lithium-ion batteries in terms of reversible capacity, it is desirable for crystal structures that can reversibly accommodate more Li ions in the lattice. Conventionally, lithium insertion materials with the densest close-packed structures should have the highest volumetric capacity. However, in recent years, materials with non-closest-packed structures, such as TiNb2O7, have been paid much attention as high-capacity materials because they can accommodate an extremely large number of Li ions. In this study, we synthesized and characterized a series of binary W-Nb oxides for the high-volumetric-capacity negative electrode because it has many binary compounds having non-close-packed structures. All of the W-Nb oxides reversibly accommodate Li ions at the ratio of Li/M > 1, although the crystal structures are different between the W-rich phase with flower-type structures and the Nb-rich phase with block-type structures. The Nb-rich phases with block-type structures exhibit larger reversible capacity than the W-rich phases. The reaction mechanism of W3Nb14O44, which has the highest capacity among the binary oxides, was investigated by ex situ X-ray diffraction (XRD), and it was found that its volume change is small owing to a large free space in the crystal structure with non-close packing. Finally, to examine the feasibility of W3Nb14O44 as the high-capacity negative electrode, we fabricated a lithium-ion cell of W3Nb14O44 combined with a 5 V positive electrode material of Li[Ni1/2Mn3/2]O4 and performed a cycle test.

    DOI: 10.1021/acsaem.3c00879

  • Preface for the 66th Special Feature “Novel Aspects and Approaches to Experimental Methods for Electrochemistry”

    YAMADA Hirohisa, MATSUMOTO Kazuhiko, KURATANI Kentaro, ARIYOSHI Kingo, MATSUI Masaki, MIZUHATA Minoru

    Electrochemistry   90 ( 10 )   102000 - 102000   2022.10( ISSN:13443542

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    Publishing type:Research paper (scientific journal)  

    <p>The Kansai Branch of the Electrochemical Society of Japan publishes a collection of papers in <i>Electrochemistry</i>, which serve as a commentary to the 51st Electrochemistry Workshop. This attempt is motivated by the fact that the domestic seminars are now widely publicized through the on-demand event triggered by COVID-19. This preface consists of the significance of the publication and an introduction of the lecturers as a part of special future for “Novel Aspects and Approaches to Experimental Methods for Electrochemistry.” in this issue of <i>Electrochemistry</i>.</p>

    DOI: 10.5796/electrochemistry.22-66113

  • Electrochemical Impedance Spectroscopy Part 2: Applications Reviewed

    ARIYOSHI Kingo, MINESHIGE Atsushi, TAKENO Mitsuhiro, FUKUTSUKA Tomokazu, ABE Takeshi, UCHIDA Satoshi, SIROMA Zyun

    Electrochemistry   90 ( 10 )   102008 - 102008   2022.10( ISSN:13443542

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    Publishing type:Research paper (scientific journal)  

    <p>Electrochemical impedance spectroscopy (EIS) is widely used for the analysis of various electrochemical devices, as it can quantitatively evaluate the main kinetic parameters related to electrochemical phenomena by analysis using equivalent circuits. This paper describes practical applications of EIS, along with EIS measurement and analysis methods for solid electrolytes, Li-ion batteries (LIBs), and electric double-layer capacitors (EDLCs). In all applications, it is necessary to properly measure the impedance data for an adequate equivalent circuit analysis. Therefore, after presenting the backgrounds of EIS applications in the Section 1 (Introduction), the experimental cautions in the measurements are discussed in detail in Sections 2–4. Section 2 (“EIS for Solid Electrolytes”) presents practical examples of measurements for accurate data, as the EIS analysis of solid electrolytes requires impedance data in the high-frequency range above 1 MHz. Section 3 (“EIS for Lithium-Ion Batteries”) describes a method of separating the internal resistance into the resistances of the positive and negative electrodes and electrolyte resistance, as the output power capabilities of LIBs are frequently evaluated based on an internal resistance. In particular, a symmetrical cell technique enabling measurements of the impedance data only for the positive or negative electrode is demonstrated. As described in Section 4 (“EIS for Electric Double-Layer Capacitors”), the excessive and unwanted impedances arising from instruments and cells must be suppressed as much as possible for appropriately measuring the correct EIS of EDLCs, because the resistance of EDLCs is very small. Therefore, the experimental setup that should be considered in EIS measurements for EDLCs leading to disturbed impedance data is discussed, along with the effects of this scenario on the impedance data. Finally, we summarize our conclusions in Section 5 (Summary).</p>

    DOI: 10.5796/electrochemistry.22-66080

  • Electrochemical Impedance Spectroscopy Part 1: Fundamentals Reviewed

    ARIYOSHI Kingo, SIROMA Zyun, MINESHIGE Atsushi, TAKENO Mitsuhiro, FUKUTSUKA Tomokazu, ABE Takeshi, UCHIDA Satoshi

    Electrochemistry   90 ( 10 )   102007 - 102007   2022.10( ISSN:13443542

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    <p>Electrochemical impedance spectroscopy (EIS) enables the examination of the electrochemical nature of electrodes and electrochemical cells by applying an alternating voltage (or current) and measuring the resulting current (or voltage). The resistance and capacitance components of the electrode can be evaluated by applying an AC voltage and changing the frequency. In particular, analysis using the equivalent circuit can determine important parameters related to the electrochemical reaction of the electrode, such as the charge transfer resistance, electric double-layer capacitance, and Warburg impedance. Moreover, the internal resistance of the cell can be divided into resistances caused by the positive electrode, negative electrode, and electrolyte. Because of these advantages, EIS is a powerful technique used for basic research, such as in identifying the rate-determining step of an electrochemical reaction, and also for applied research, such as characterizing electrochemical devices (e.g., batteries and capacitors). In this paper, the concept of impedance, which represents the relationship between the AC voltage and current, is first explained; then, the AC characteristics of various circuit elements used in equivalent circuits, which are essential for understanding EIS, are described. Finally, treatments of more complex circuits based on transmission-line models (TLMs), which are used to represent equivalent circuits of porous electrodes, are presented. Analyses based on TLMs are the foundation for understanding electrodes for practical applications because porous electrodes are usually used in electrochemical devices.</p>

    DOI: 10.5796/electrochemistry.22-66071

  • Quantification analysis and kinetic modeling of crosstalk reactions in lithium-ion batteries using a four-electrode cell Reviewed

    Ariyoshi K.

    Journal of Electroanalytical Chemistry   916   2022.07( ISSN:15726657

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jelechem.2022.116383

  • Voltage decay for lithium-excess material of Li[Li<inf>1/5</inf>Co<inf>2/5</inf>Mn<inf>2/5</inf>]O<inf>2</inf> during cycling analyzed via backstitch method Reviewed

    Ariyoshi K.

    Journal of Solid State Electrochemistry   26 ( 6-7 )   1519 - 1526   2022.07( ISSN:14328488

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10008-022-05184-0

  • Dilatometric study of thickness change of lithium-metal electrode during cycling Reviewed

    Ariyoshi K.

    Journal of Power Sources   533   2022.06( ISSN:03787753

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jpowsour.2022.231360

  • Dynamic Elucidation of Lithium Insertion Reaction into MgMn<inf>2</inf>O<inf>4</inf> Spinel Reviewed

    Ariyoshi K.

    Journal of the Electrochemical Society   169 ( 6 )   2022.06( ISSN:00134651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1945-7111/ac72c5

  • Experimental Measurement and Quantification of the Local Cell Reaction in Blended Lithium Insertion Electrodes Reviewed

    Ariyoshi K.

    ChemElectroChem   9 ( 10 )   2022.05

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/celc.202200101

  • Similarity between the redox potentials of 3d transition-metal ions in polyanionic insertion materials and aqueous solutions Reviewed

    Ariyoshi K.

    Physical Chemistry Chemical Physics   24 ( 21 )   12984 - 12992   2022.05( ISSN:14639076

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d2cp00383j

  • Correlation between capacity loss and increase in polarization in 5 V lithium-insertion material of Li[Ni1/2Mn3/2]O-4 Reviewed

    Ariyoshi Kingo, Eguchi Makoto, Hirooka Motoyuki

    SOLID STATE IONICS   371   2021.11( ISSN:0167-2738

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.ssi.2021.115752

  • Synthesis and electrochemical properties of a cubic polymorph of LiNi1/2Mn1/2O2 with a spinel framework Reviewed

    Ariyoshi Kingo, Kajikawa Kensuke, Yamada Yusuke

    JOURNAL OF SOLID STATE ELECTROCHEMISTRY   2021.11( ISSN:1432-8488

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10008-021-05087-6

  • Clarification of particle size dependence on the rate capabilities of Li[Ni1/2Mn(3/2)]O-4 materials and electrodes by the dilute electrode method Reviewed

    Ariyoshi Kingo, Sugawa Jun, Masuda Shumpei

    JOURNAL OF POWER SOURCES   509   2021.10( ISSN:0378-7753

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jpowsour.2021.230349

  • Intragranular Fracture Mechanism of Highly Crystalline Lithium Manganese Oxide during Lithium Insertion/Extraction Reactions Reviewed

    Ariyoshi Kingo, Ukumori Nan

    ACS APPLIED ENERGY MATERIALS   4 ( 8 )   8142 - 8149   2021.08( ISSN:2574-0962

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsaem.1c01442

  • Synthesis Optimization of Electrochemically Active LiCoMnO4 for High-Voltage Lithium-Ion Batteries Reviewed

    Ariyoshi Kingo, Yamamoto Hiroya, Yamada Yusuke

    ENERGY & FUELS   35 ( 16 )   13449 - 13456   2021.08( ISSN:0887-0624

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.energyfuels.1c01866

  • Effect of Electronic Conductivity on the Polarization Behavior of Li[Li1/3Ti5/3]O-4 Electrodes Reviewed

    Ariyoshi Kingo, Ino Takaya, Yamada Yusuke

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   168 ( 7 )   2021.07( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1945-7111/ac163f

  • Impact of particle size of lithium manganese oxide on charge transfer resistance and contact resistance evaluated by electrochemical impedance analysis Reviewed

    Ariyoshi Kingo, Tanimoto Masumi, Yamada Yusuke

    ELECTROCHIMICA ACTA   364   2020.12( ISSN:0013-4686

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.electacta.2020.137292

  • Differentiating the Rate Capabilities of Lithium-Nickel-Manganese Oxide Li[Ni1/2Mn3/2]O-4 Insertion Materials and Electrodes Using Diluted Electrode Methods Reviewed

    Ariyoshi Kingo, Sugawa Jun, Masuda Shumpei

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   167 ( 14 )   2020.11( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1945-7111/abc10a

  • Improvement of float charge durability for LiCoO2 electrodes under high voltage and storage temperature by suppressing O1-Phase transition Reviewed

    Hirooka Motoyuki, Sekiya Tomohito, Omomo Yoshitomo, Yamada Masayuki, Katayama Hideaki, Okumura Takefumi, Yamada Yusuke, Ariyoshi Kingo

    JOURNAL OF POWER SOURCES   463   2020.07( ISSN:0378-7753

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jpowsour.2020.228127

  • Self-discharge tests to measure side-reaction currents of a Li[Li1/3Ti5/3]O-4 electrode Reviewed

    Ariyoshi Kingo, Toda Takahide, Yamada Yusuke

    JOURNAL OF ELECTROANALYTICAL CHEMISTRY   864   2020.05( ISSN:1572-6657

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jelechem.2020.114110

  • Reaction Mechanism and Kinetic Analysis of the Solid-State Reaction to Synthesize Single-Phase Li2Co2O4 Spinel Reviewed

    Ariyoshi Kingo, Yuzawa Kazuki, Yamada Yusuke

    JOURNAL OF PHYSICAL CHEMISTRY C   124 ( 15 )   8170 - 8177   2020.04( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.0c01115

  • Examining the Long-Term Cyclabilities of Li[Ni1/2Mn3/2]O-4 and Li[Li0.1Al0.1Mn1.8]O-4 Using a Full-Cell Configuration Including LTO-Counter Electrodes with Extra Capacity Reviewed

    Ariyoshi Kingo, Eguchi Makoto, Hirooka Motoyuki

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   167 ( 6 )   2020.04( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1945-7111/ab872f

  • Mechanism of Mg extraction from MgMn2O4 during acid digestion Reviewed

    Ariyoshi Kingo, Masuda Shumpei

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   22 ( 8 )   4677 - 4684   2020.02( ISSN:1463-9076

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c9cp05829j

  • Elucidation of the origin of voltage hysteresis in xLi(2)MnO(3) center dot (1-x) LiCoO2 using backstitch charge-discharge method Reviewed

    Ariyoshi Kingo, Inoue Takayuki, Yamada Yusuke

    ELECTROCHIMICA ACTA   334   2020.02( ISSN:0013-4686

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.electacta.2020.135623

  • Determination of Solid-State Li Diffusion Coefficient of Lithium Insertion Materials from Rate Capability Tests on Diluted Electrode Reviewed

    ARIYOSHI Kingo, SUGAWA Jun

    公益社団法人 電気化学会 Electrochemistry   2020( ISSN:1344-3542

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    Publishing type:Research paper (scientific journal)  

    <p>To establish the kinetics of the lithium insertion materials used as the electrodes in lithium-ion batteries, it is important to clarify the diffusion phenomena of lithium ions in the solid phase. Since there are two variations of the rate-determining step of a lithium insertion electrode (Li-ion diffusion in solid particles and that in the electrolyte solution), these have to be differentiated in any investigation of the diffusion phenomena of Li ions in a solid. In this study, we calculated the rate capability of diluted electrodes using a charge–discharge simulation program and proved that the transport of Li ions in the solid phase is the rate-determining step for a diluted electrode with an extremely low active material content. In addition, the solid-state Li-ion diffusion coefficient can be calculated by analyzing the results of the rate capability tests. These results reveal that the diluted electrode method is very useful for elucidating the solid-state Li ion diffusion phenomena of lithium insertion materials. As such, the rate capability tests provide a new means of analyzing the solid-state diffusion coefficient.</p>

    DOI: 10.5796/electrochemistry.20-00136

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  • Relationship between changes in ionic radius and lattice dimension of lithium manganese oxide spinels during lithium insertion/extraction Reviewed

    Ariyoshi Kingo, Yamamoto Hiroya, Yamada Yusuke

    SOLID STATE IONICS   343   2019.12( ISSN:0167-2738

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.ssi.2019.115077

  • Degradation mechanism of LiCoO<inf>2</inf> under float charge conditions and high temperatures Reviewed

    Hirooka M.

    Electrochimica Acta   320   2019.10( ISSN:00134686

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.electacta.2019.134596

  • Electrochemical impedance analysis of Li[Li0.1Al0.1Mn1.8]O-4 used as lithium-insertion electrodes by the diluted electrode method<bold> </bold> Reviewed

    Ariyoshi Kingo, Mizutani Satoshi, Yamada Yusuke

    JOURNAL OF POWER SOURCES   435   2019.09( ISSN:0378-7753

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jpowsour.2019.226810

  • Comparative Measurements of Side-Reaction Currents of Li[Li1/3Ti5/3]O-4 and Li[Li0.1Al0.1Mn1.8]O-4 Electrodes in Lithium-Ion Cells and Symmetric Cells Reviewed

    Ariyoshi Kingo, Fukunishi Yuki, Yamada Yusuke

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   166 ( 14 )   A3314 - A3318   2019.09( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/2.0601914jes

  • Rate capability of carbon-free lithium titanium oxide electrodes related to formation of electronic conduction paths observed by color change Reviewed

    Ariyoshi Kingo, Ino Takaya, Yamada Yusuke

    JOURNAL OF POWER SOURCES   430   150 - 156   2019.08( ISSN:0378-7753

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jpowsour.2019.05.023

  • Li2Ni0.2Co1.8O4 having a spinel framework as a zero-strain positive electrode material for lithium-ion batteries Reviewed

    Ariyoshi Kingo, Orikasa Yuki, Kajikawa Kensuke, Yamada Yusuke

    JOURNAL OF MATERIALS CHEMISTRY A   7 ( 22 )   13641 - 13649   2019.06( ISSN:2050-7488

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c9ta03191j

  • Measurement of Side-Reaction Currents on Electrodes of Lithium-Ion Cells Using a Battery Cycler with a High-Precision Current Source Reviewed

    Ariyoshi Kingo, Fukunishi Yuki, Yamada Yusuke

    公益社団法人 電気化学会 ELECTROCHEMISTRY   87 ( 3 )   188 - 192   2019( ISSN:1344-3542

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    <p>Capacity fading mainly caused by state-of-charge deviations between the positive and negative electrodes of lithium-ion batteries (LIBs) can be accurately predicted if the rates of side reactions occurring on these electrodes are known. Herein, we show that the rates of side reactions on LIB electrodes can be determined using an in-house-built high-current-precision battery cycler comprising galvanostat, charge/discharge control, and current switching units. An Li[Li<sub>1/3</sub>Ti<sub>5/3</sub>]O<sub>4</sub>/Li[Li<sub>1/3</sub>Ti<sub>5/3</sub>]O<sub>4</sub> (LTO/LTO) symmetric cell is used to verify that the battery cycler provides currents accurate enough to determine side-reaction rates, and the rates of side reactions on LTO (negative) and LiNiMO (positive) electrodes in an LTO/LiNiMO cell are compared with intrinsic values obtained for the symmetric cell.</p>

    DOI: 10.5796/electrochemistry.18-00092

    CiNii Article

  • A Clue to High Rate Capability of Lithium-Ion Batteries Obtained by an Electrochemical Approach Using "Diluted" Electrode Reviewed

    Ariyoshi Kingo, Mizutani Satoshi, Makino Tomoya, Yamadaz Yusuke

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   165 ( 16 )   A3965 - A3970   2018.12( ISSN:0013-4651

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    DOI: 10.1149/2.0861816jes

  • Quantitative Analysis of Large Voltage Hysteresis of Lithium Excess Materials by Backstitch Charge and Discharge Method Reviewed

    Ariyoshi Kingo, Inoue Takayuki, Yamada Yusuke

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   165 ( 11 )   A2675 - A2681   2018.08( ISSN:0013-4651

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    DOI: 10.1149/2.0701811jes

  • High dimensional stability of LiCoMnO4 as positive electrodes operating at high voltage for lithium-ion batteries with a long cycle life Reviewed

    Ariyoshi Kingo, Yamamoto Hiroya, Yamada Yusuke

    ELECTROCHIMICA ACTA   260   498 - 503   2018.01( ISSN:0013-4686

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    DOI: 10.1016/j.electacta.2017.12.064

  • Utilizing Environmental Friendly Iron as a Substitution Element in Spinel Structured Cathode Materials for Safer High Energy Lithium-Ion Batteries Reviewed

    Hu Enyuan, Bak Seong-Min, Liu Yijin, Liu Jue, Yu Xiqian, Zhou Yong-Ning, Zhou Jigang, Khalifah Peter, Ariyoshi Kingo, Nam Kyung-Wan, Yang Xiao-Qing

    ADVANCED ENERGY MATERIALS   6 ( 3 )   2016.02( ISSN:1614-6832

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    DOI: 10.1002/aenm.201501662

  • Characterization of Lithium Insertion Electrodes and Its Verification: Prototype 18650 Batteries Consisting of LTO and LAMO Reviewed

    Nakura Kensuke, Ariyoshi Kingo, Yoshizawa Hiroshi, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   162 ( 4 )   A622 - A628   2015( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/2.0361504jes

  • Characterization of Lithium Insertion Electrodes by Precision Dilatometer: Area-Specific Deformation of Single Electrode Reviewed

    Nagayama Masatoshi, Ariyoshi Kingo, Yamamoto Yuki, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   161 ( 9 )   A1388 - A1393   2014( ISSN:0013-4651

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    DOI: 10.1149/2.0981409jes

  • Characterization of Lithium Insertion Electrodes: A Method to Measure Area-Specific Impedance of Single Electrode Reviewed

    Nakura Kensuke, Ariyoshi Kingo, Ogaki Fujika, Takaoka Kenji, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   161 ( 6 )   A841 - A846   2014( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/2.090405jes

  • 電気化学関係で主に用いられる測定機器 : ポテンショスタットの動作原理 Reviewed

    有吉 欽吾

    The Electrochemical Society of Japan 電気化学および工業物理化学 : denki kagaku   80 ( 8 )   602 - 607   2012.08( ISSN:13443542

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    DOI: 10.5796/electrochemistry.80.602

    CiNii Article

  • Capacity Fading of Lithium-Ion Cells Having Li[Li1/3Ti5/3]O4 (LTO)-Negative Electrodes for the First- and Second-Generation 12 V Lead-Free Batteries

    159   A1710   2012

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  • Capacity Fading of Lithium-Ion Cells Having Li[Li1/3Ti5/3]O-4 (LTO)-Negative Electrodes for the First- and Second-Generation 12 V Lead-Free Batteries Reviewed

    Wang Lina, Nakura Kensuke, Imazaki Mitsuyasu, Kakizaki Narumi, Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   159 ( 10 )   A1710 - A1715   2012( ISSN:0013-4651

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    DOI: 10.1149/2.059210jes

  • Examinations on 2.5V Li[Li1/3Ti5/3]O-4/Li[Li0.1Al0.1Mn1.8]O-4 cells at-10, 25, and 55 degrees C for the first-generation 12V lead-free batteries Reviewed

    Imazaki Mitsuyasu, Wang Lina, Kawai Toru, Ariyoshi Kingo, Ohzuku Tsutomu

    ELECTROCHIMICA ACTA   56 ( 12 )   4576 - 4580   2011.04( ISSN:0013-4686

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    DOI: 10.1016/j.electacta.2011.02.081

  • Effect of Primary Particle Size upon Polarization and Cycling Stability of 5-V lithium Insertion Material of Li[Ni1/2Mn3/2]O4

    Yusuke Maeda, Toru Kawai, Tsutomu Ohzuku

    Journal of The Electrochemical Society, 158 (3) A281-A284(2011)   158 ( 3 )   A281-A284   2011

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  • High-capacity lithium insertion materials of lithium nickel manganese oxides for advanced lithium-ion batteries: toward rechargeable capacity more than 300 mA h g(-1) Reviewed

    Ohzuku Tsutomu, Nagayama Masatoshi, Tsuji Kyoji, Ariyoshi Kingo

    JOURNAL OF MATERIALS CHEMISTRY   21 ( 27 )   10179 - 10188   2011( ISSN:0959-9428

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c0jm04325g

  • Extending Cycle Life of Lithium-Ion Batteries Consisting of Lithium Insertion Electrodes: Cycle Efficiency Versus Ah-Efficiency Reviewed

    Nakura Kensuke, Ohsugi Yuta, Imazaki Mitsuyasu, Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   158 ( 12 )   A1243 - A1249   2011( ISSN:0013-4651

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    DOI: 10.1149/2.002112jes

  • Effect of Primary Particle Size upon Polarization and Cycling Stability of 5-V Lithium Insertion Material of Li[Ni1/2Mn3/2]O-4 Reviewed

    Ariyoshi Kingo, Maeda Yusuke, Kawai Toru, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   158 ( 3 )   A281 - A284   2011( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1.3531965

  • Extending Cycle Life of Lithium-Ion Batteries Consisting of Lithium Insertion Electrodes: Cycle Efficiency Versus Ah-Efficiency

    Kensuke Nakura, Yuta Ohsugi, Mitsuyasu Imazaki, Tsutomu Ohzuku

    Journal of The Electrochemical Society   158 ( 12 )   A1243-A1249   2011

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  • Examinations on 2.5V Li[Li1/3Ti5/3]O4/Li[Li0.1Al0.1Mn1.8]O4 cells at −10, 25, and55 ◦C for the first-generation 12V lead-free batteries

    Mitsuyasu Imazaki, Lina Wang, Toru Kawai, Tsutomu Ohzuku

    Electrochimica Acta, 56 4576–4580 (2011)   56   4576 - 4580   2011

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  • High-capacity lithium insertion materials of lithium nickle manganese oxides for advanced lithium-ion batteries: toward rechargeable capacitiy more than 300 mA h / g

    Tsutomu Ohzuku, Masatoshi Nagayama, Kyoji Tsuji

    Journal of Materials Chemistry 2011 21 10179-10188   21   10179 - 10188   2011

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  • An Approach to 12-V Lead-free Batteries: High Temperature 3600-cycle Examinations on a 2.5-V LTO/LAMO Battery Reviewed

    Ohzuku Tsutomu, Imazaki Mitsuyasu, Tsukamoto Naoya, Ariyoshi Kingo

    The Chemical Society of Japan CHEMISTRY LETTERS   38 ( 12 )   1202 - 1203   2009.12( ISSN:0366-7022

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    A 2.5-V battery consisting of lithium titanium oxide (LTO) and lithium aluminum manganese oxide (LAMO) having spinel-framework structures was examined from 1 to 3 V at 55 °C. After several trials on capacity retention at high temperatures, we have succeeded to show that the rechargeable capacity is retained at greater than 80% even after 3600 cycles at 55 °C by applying cellulose nonwoven cloth as a separator, satisfying requirement for 12-V automobile applications.

    DOI: 10.1246/cl.2009.1202

    CiNii Article

  • Effect of deviation from Ni/Mn stoichiometry in Li[Ni1/2Mn3/2]O-4 upon rechargeable capacity at 4.7 V in nonaqueous lithium cells Reviewed

    Maeda Yusuke, Ariyoshi Kingo, Kawai Toru, Sekiya Tomohito, Ohzuku Tsutomu

    公益社団法人 日本セラミックス協会 JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   117 ( 1371 )   1216 - 1220   2009.11( ISSN:1882-0743

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    Lithium nickel manganese oxides having 20% nickel excess and deficient with respect to the stoichiometric Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub> having a space group symmetry of <i>P</i>4<sub>3</sub>32 were prepared and examined in nonaqueous lithium cells. Rechargeable capacity observed for the 20% nickel excess sample in voltage above 4.5 V is larger than that for the 20% nickel deficient sample. The effect of deviation from Ni/Mn stoichiometry from the ideal composition of Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub> upon the rechargeable capacity at 4.7 V is described in terms of the solid solution, phase separation, and superstructural Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub>. From the results, the composition preferable to the five-volt lithium insertion material of Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub> is discussed. The cycling stability of Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub> in the cell with the Li[Li<sub>1/3</sub>Ti<sub>5/3</sub>]O<sub>4</sub>-negative electrode is also examined in voltages ranging from 1.5 to 3.6 V at 25°C for 250 cycles and shown that the capacity fading of the cell is negligibly small below 4% even after 250 cycles.

    DOI: 10.2109/jcersj2.117.1216

    CiNii Article

  • X-ray diffraction study on LixCoO2 below ambient temperature Reviewed

    Mukai K., Nozaki H., Ikedo Y., Sugiyama J., Ariyoshi K., Ohzuku T.

    JOURNAL OF POWER SOURCES   192 ( 2 )   684 - 688   2009.07( ISSN:0378-7753

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    DOI: 10.1016/j.jpowsour.2009.03.004

  • mu+SR investigation of local magnetic order in LiCrO2 Reviewed

    Sugiyama Jun, Mansson Martin, Ikedo Yutaka, Goko Tatsuo, Mukai Kazuhiko, Andreica Daniel, Amato Alex, Ariyoshi Kingo, Ohzuku Tsutomu

    PHYSICAL REVIEW B   79 ( 18 )   2009.05( ISSN:1098-0121

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    DOI: 10.1103/PhysRevB.79.184411

  • Magnetic phase diagram of Li[MgxMn2-x]O-4 (0 <= x <= 1/2) spinel Reviewed

    Mukai Kazuhiko, Sugiyama Jun, Ikedo Yutaka, Russo Peter L., Brewer Jess H., Ansaldo Eduardo J., Chow Kim H., Ariyoshi Kingo, Ohzuku Tsutomu

    PHYSICA B-CONDENSED MATTER   404 ( 5-7 )   656 - 659   2009.04( ISSN:0921-4526

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physb.2008.11.104

  • Static magnetic order on the triangular lattice in LixNiO2 with x <= 1 Reviewed

    Sugiyama Jun, Mukai Kazuhiko, Ikedo Yutaka, Nozaki Hiroshi, Russo Peter L., Andreica Daniel, Amato Alex, Ariyoshi Kingo, Ohzuku Tsutomu

    PHYSICA B-CONDENSED MATTER   404 ( 5-7 )   663 - 666   2009.04( ISSN:0921-4526

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    DOI: 10.1016/j.physb.2008.11.102

  • Micro- and macroscopic magnetism in LixNiO2 Reviewed

    Mukai K., Sugiyama J., Ikedo Y., Russo P. L., Andreica D., Amato A., Ariyoshi K., Ohzuku T.

    JOURNAL OF POWER SOURCES   189 ( 1 )   665 - 668   2009.04( ISSN:0378-7753

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    DOI: 10.1016/j.jpowsour.2008.09.069

  • An Approach to 12 V "Lead-Free" Batteries: Tolerance toward Overcharge of 2.5 V Battery Consisting of LTO and LAMO Reviewed

    Imazaki Mitsuyasu, Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   156 ( 10 )   A780 - A786   2009( ISSN:0013-4651

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1149/1.3176875

  • Static magnetic order in the triangular lattice of LixNiO2 (x <= 1): Muon-spin spectroscopy measurements Reviewed

    Sugiyama Jun, Mukai Kazuhiko, Ikedo Yutaka, Russo Peter L., Nozaki Hiroshi, Andreica Daniel, Amato Alex, Ariyoshi Kingo, Ohzuku Tsutomu

    PHYSICAL REVIEW B   78 ( 14 )   2008.10( ISSN:1098-0121

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.78.144412

  • Cooperative Jahn-Teller transition in Li[Li(x)Mn(2-x)]O(4): a muon-spin rotaion/relaxation (mu SR) view Reviewed

    Sugiyama Jun, Mukai Kazuhiko, Ikedo Yutaka, Russo Peter L., Suzuki Takao, Watanabe Isao, Brewer Jess H., Ansaldo Eduardo J., Chow Kim H., Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   19 ( 8-9 )   875 - 882   2008.09( ISSN:0957-4522

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10854-007-9548-2

  • Electronic and magnetic properties of novel layered cobalt dioxides A(x)CoO(2) with A = Li, Na, and K Reviewed

    Sugiyama Jun, Ikedo Yutaka, Russo Peter L., Mukai Kazuhiko, Nozaki Hiroshi, Brewer Jess H., Ansaldo Eduardo J., Chow Kim H., Andreica Daniel, Amato Alex, Fujii Takenori, Asamitsu Atsushi, Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   19 ( 8-9 )   883 - 893   2008.09( ISSN:0957-4522

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10854-008-9573-9

  • Steady-state polarization measurements of lithium insertion electrodes for high-power lithium-ion batteries Reviewed

    Ohzuku Tsutomu, Yamato Ryoji, Kawai Toru, Ariyoshi Kingo

    JOURNAL OF SOLID STATE ELECTROCHEMISTRY   12 ( 7-8 )   979 - 985   2008.08( ISSN:1432-8488

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10008-007-0464-4

  • Three-volt lithium-ion battery consisting of Li[Ni1/2Mn3/2]O-4 and Li[Li1/3Ti5/3]O-4: Improvement of positive-electrode material for long-life medium-power applications Reviewed

    Ariyoshi Kingo, Yamatoa Ryoji, Makimura Yoshinari, Amazutsumi Toru, Maeda Yusuke, Ohzuku Tsutomu

    ELECTROCHEMISTRY   76 ( 1 )   46 - 54   2008.01( ISSN:1344-3542

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  • Micro- and macroscopic magnetism on layered cobalt dioxide LixCoO2 (0.1 <= x <= 1) Reviewed

    Mukai Kazuhiko, Sugiyama Jun, Ikedo Yutaka, Andreica Daniel, Amato Alex, Brewer Jess H., Ansaldo Eduardo J., Russo Peter L., Chow Kim H., Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   69 ( 5-6 )   1479 - 1482   2008( ISSN:0022-3697

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    DOI: 10.1016/j.jpcs.2007.09.014

  • Structural change of LiNi1/2Mn1/2O2 during charge and discharge in nonaqueous lithium cells Reviewed

    Ariyoshi Kingo, Ichikawa Tomohiro, Ohzuku Tsutomu

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   69 ( 5-6 )   1238 - 1241   2008( ISSN:0022-3697

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    DOI: 10.1016/j.jpcs.2007.10.087

  • Magnetism and lithium diffusion in LixCoO2 by a muon-spin rotation and relaxation (mu+SR) technique Reviewed

    Mukai Kazuhiko, Sugiyama Jun, Ikedo Yutaka, Nozaki Hiroshi, Shimomura Koichiro, Nishiyama Kusuo, Ariyoshi Kingo, Ohzuku Tsutornu

    JOURNAL OF POWER SOURCES   174 ( 2 )   711 - 715   2007.12( ISSN:0378-7753

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    DOI: 10.1016/j.jpowsour.2007.06.111

  • Microscopic magnetism in lithium insertion materials of LiNi1-xCoxO2 (x=0, 1/4, 1/2, 3/4, and 1) Reviewed

    Mukai Kazuhiko, Sugiyama Jun, Ikedo Yutaka, Brewer Jess H., Ansaldo Eduardo J., Morris Gerald D., Ariyoshi Kingo, Ohzuku Tsutomu

    JOURNAL OF POWER SOURCES   174 ( 2 )   843 - 846   2007.12( ISSN:0378-7753

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    DOI: 10.1016/j.jpowsour.2007.06.105

  • Three-volt lithium-ion battery of Li[Li1/3Ti5/3]O-4 and Li[Ni1/2Mn3/2]O-4 with auxiliary lithium electrode to monitor polarization voltages of positive and negative electrodes Reviewed

    Amazutsumi Toru, Ariyoshi Kingo, Okumura Kenji, Ohzuku Tsutornu

    ELECTROCHEMISTRY   75 ( 11 )   867 - 872   2007.11( ISSN:1344-3542

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  • Magnetic phase diagram of layered cobalt dioxide LixCoO2 Reviewed

    Mukai K., Ikedo Y., Nozaki H., Sugiyama J., Nishiyama K., Andreica D., Amato A., Russo P. L., Ansaldo E. J., Brewer J. H., Chow K. H., Ariyoshi K., Ohzuku T.

    PHYSICAL REVIEW LETTERS   99 ( 8 )   2007.08( ISSN:0031-9007

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    DOI: 10.1103/PhysRevLett.99.087601

  • Microscopic magnetic and structural nature of spinel Li[LixMn2-x]O-4 Reviewed

    Sugiyama J., Mukai K., Ikedo Y., Russo P. L., Suzuki T., Watanabe I., Brewer J. H., Ansaldo E. J., Chow K. H., Ariyoshi K., Ohzuku T.

    PHYSICAL REVIEW B   75 ( 17 )   2007.05( ISSN:1098-0121

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    DOI: 10.1103/PhysRevB.75.174424

  • Lead-free accumulators for renewable and clean energy technologies Reviewed

    Ohzuku Tsutomu, Ariyoshi Kingo

    The Chemical Society of Japan CHEMISTRY LETTERS   35 ( 8 )   848 - 849   2006.08( ISSN:0366-7022

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    Lead-free accumulators consisting of lithium aluminum manganese oxide (LAMO) and lithium titanium oxide (LTO) having spinel-framework structures are examined in 1 M LiBF<SUB>4</SUB> acetonitrile. Results on zero-volt storage for 2 weeks, cycle tests at 1 mA cm<SUP>−2</SUP> in voltages of 0 to 2.9 V for 20 cycles and then at 2 mA cm<SUP>−2</SUP> in voltages of 2.0 to 2.9 V for 100 cycles, and rate-capability tests ranging from 0.3 to 16.7 mA cm<SUP>−2</SUP> are presented and 12 V lead-free accumulators, in which 5 cells are connected in series, are proposed for renewable and clean energy technologies.

    DOI: 10.1246/cl.2006.848

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  • Lead-free Accumulators for Renewable and Clean Energy Technologies Reviewed

    OHZUKU Tsutomu, ARIYOSHI Kingo

    Chemistry letters   35 ( 8 )   848 - 849   2006.08( ISSN:03667022

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  • Lithium aluminum manganese oxide having spinel-framework structure for long-life lithium-ion batteries Reviewed

    Ariyoshi Kingo, Iwata Eiichi, Kuniyoshi Minoru, Wakabayashi Hiromichi, Ohzuku Tsutomu

    ELECTROCHEMICAL AND SOLID STATE LETTERS   9 ( 12 )   A557 - A560   2006( ISSN:1099-0062

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    DOI: 10.1149/1.2360019

  • Zero-strain insertion mechanism of Li[Li1/3Ti5/3]O for advanced lithium-ion (shuttlecock) batteries Reviewed

    Ariyoshi K, Yamato R, Ohzuku T

    ELECTROCHIMICA ACTA   51 ( 6 )   1125 - 1129   2005.11( ISSN:0013-4686

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    DOI: 10.1016/j.electacta.2005.05.053

  • Comparative study of Li[CrTi]O-4, Li[Li1/3Ti5/3]O(4)and Li1/2Fe1/2[Li1/2Fe1/2Ti]O-4 in non-aqueous lithium cells Reviewed

    Mukai K, Ariyoshi K, Ohzuku T

    JOURNAL OF POWER SOURCES   146 ( 1-2 )   213 - 216   2005.08( ISSN:0378-7753

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    DOI: 10.1016/j.jpowsour.2005.03.019

  • 次世代リチウムイオン(シャトルコック)蓄電池用インサーション材料 Reviewed

    小槻 勉, 有吉 欽吾, 牧村 嘉也, 藪内 直明, 澤井 圭二郎

    公益社団法人 電気化学会 電気化学および工業物理化学 : denki kagaku   73 ( 1 )   2 - 11   2005.01( ISSN:13443542

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    <p>Recent progresses on insertion materials for lithium-ion batteries are described. Understanding of solid state chemistry and electrochemistry of LiCoO<sub>2</sub>, LiNiO<sub>2</sub>, LiMn<sub>2</sub>O<sub>4</sub>, LiC<sub>6</sub>, and so forth was a first step and their modification in terms of solid solution among the same crystal family was a second step. However, materials innovation is restricted because of the limitation of chemical species unless new concept is introduced. Old, but quite new concept is so-called "superlattice" model with which one can design hypothetical lithium insertion materials, calculate electronic and crystal structures by using computational methods, and develop effectively in an empirical basis. To demonstrate the new concept, systematic researches on materials based on superlattice models in a phase triangle of LiCoO<sub>2</sub>-LiNiO<sub>2</sub>-LiMnO<sub>2</sub> leading to novel binary or ternary oxides of lithium with transition metal elements, <i>i.e.</i>, LiNi<sub>1/2</sub>Mn<sub>1/2</sub>O<sub>2</sub>, LiCo<sub>1/3</sub>Ni<sub>1/3</sub>Mm<sub>1/3</sub>O<sub>2</sub>, and Li[Ni<sub>1/2</sub>Mn<sub>3/2</sub>]O<sub>4</sub>, are highlighted.</p>

    DOI: 10.5796/electrochemistry.73.2

    CiNii Article

  • Topotactic two-phase reactions of Li[Ni1/2Mn3/2]O-4 (P4(3)32) in nonaqueous lithium cells Reviewed

    Ariyoshi K, Iwakoshi Y, Nakayama N, Ohzuku T

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   151 ( 2 )   A296 - A303   2004.02( ISSN:0013-4651

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    DOI: 10.1149/1.1639162

  • Topotactic Two-Phase Reactions of Li[Ni1/2Mn3/2]O4(P4332) in Nonaqueous Lithium Cells

    Yasunobu Iwakoshi, Noriaki Nakayama, and Tsutomu Ohzuku

    Journal of The Electrochemical Society   151   A296-A303   2004

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  • Three-volt lithium-ion battery with Li[Ni1/2Mn3/2]O-4 and the zero-strain insertion material of Li[Li1/3Ti5/3]O-4 Reviewed

    Ariyoshi K, Yamamoto S, Ohzuku T

    JOURNAL OF POWER SOURCES   119   959 - 963   2003.06( ISSN:0378-7753

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    DOI: 10.1016/S0378-7753(03)00298-2

  • Three-Volt Lithium-Ion Battery with Li[Ni1/2Mn3/2]O4 and The Zero-Strain Insertion Material of Li[Li1/3Ti5/3]O4

    Satoshi Yamamoto, and Tsutomu Ohzuku

    Journal of Power Sources   119-121   959 - 963   2003

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  • Synthesis and characterization of Li[Ni1/2Mn3/2]O-4 by two-step solid state reaction Reviewed

    Ohzuku T, Ariyoshi K, Yamamoto S

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   110 ( 5 )   501 - 505   2002.05( ISSN:1882-0743

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    DOI: 10.2109/jcersj.110.501

  • In situ Fe-57 Mossbauer investigation of solid-state redox reactions of lithium insertion electrodes for advanced batteries Reviewed

    Sakai Y, Ariyoshi K, Ohzuku T

    HYPERFINE INTERACTIONS   139 ( 1-4 )   67 - 76   2002( ISSN:0304-3843

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    Publishing type:Research paper (scientific journal)  

  • A 3-volt lithium-ion cell with Li[Ni1/2Mn3/2]O-4 and Li[Li1/3Ti5/3]O-4: A method to prepare stable positive-electrode material of highly crystallized Li[Ni1/2Mn3/2]O-4 Reviewed

    Ohzuku T, Ariyoshi K, Yamamoto S, Makimura Y

    CHEMISTRY LETTERS   ( 12 )   1270 - 1271   2001.12( ISSN:0366-7022

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    Publishing type:Research paper (scientific journal)  

  • Synthesis and characterization of 5 V insertion material of Li[FeyMn2-y]O-4 for lithium-ion batteries Reviewed

    Ohzuku T, Ariyoshi K, Takeda S, Sakai Y

    ELECTROCHIMICA ACTA   46 ( 15 )   2327 - 2336   2001.04( ISSN:0013-4686

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    Publishing type:Research paper (scientific journal)  

  • A 3-Volt Lithium-Ion Cell with Li[Ni1/2Mn3/2]O4 and Li[Li1/3Ti5/3]O4 : A Method to Prepare Stable Positive-Electrode Material of Highly Crystallized Li[Ni1/2Mn3/2]O4

    Tsutomu Ohzuku, Satoshi Yamamoto, and Yoshinari Makimura

    Chemistry Letters   12   1270 - 1271   2001

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    Publishing type:Research paper (scientific journal)  

  • Synthesis and characterization of 5 V Insertion Material of Li[FeyMn2-y]O4 for Lithium-Ion Batteries Reviewed

    Tsutomu Ohzuku, Sachio Takeda, and Yoichi Sakai

    Electrochmica Acta   46   2327 - 2336   2001

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

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Books and Other Publications

  • 高電位スピネル正極材料の合成、構造および電気化学特性

    有吉欽吾( Role: Contributor)

    技術情報協会  2020.03 

Presentations

  • 過放電試験によるセル内クロストーク反応の定量的解析 Domestic conference

    中村 太一、有吉 欽吾

    第63回電池討論会  2022.11 

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    Presentation type:Oral presentation (general)  

  • Ti置換LiNi0.5Mn1.5O4の希薄電極法を用いたクロノアンペロメトリーによる反応速度解析 Domestic conference

    廣嶋 伸哉、有吉 欽吾

    第63回電池討論会  2022.11 

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    Presentation type:Oral presentation (general)  

  • フラックス法で合成したLiCo1/3Ni1/3Mn1/3O2正極の粒子サイズおよび形態がレート特性に及ぼす影響 Domestic conference

    田中 利幸、有吉 欽吾

    第63回電池討論会  2022.11 

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    Presentation type:Oral presentation (general)  

  • プルシアンブルー類縁体における種々のカチオンインサーション反応に関する系統的研究 Domestic conference

    松本 一輝、有吉 欽吾

    第63回電池討論会  2022.11 

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    Presentation type:Oral presentation (general)  

  • Visualization of Crosstalk Reactions in Lithium-Ion Batteries Using Four-Electrode Cell International conference

    Kingo Ariyoshi, Atsushi Maekawa, and Taichi Nakamura

    IMLB2022  2022.06 

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    Presentation type:Poster presentation  

  • 定電圧充電時のLi[Ni1/2Mn3/2]O4 正極の抵抗上昇に及ぼす負極の影響 Domestic conference

    中村 太一、前川 敦志、有吉 欽吾

    電気化学会第88回大会  2022.03 

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    Presentation type:Oral presentation (general)  

  • DV-Xa法によるリチウムインサーション材料の固相酸化・還元反応の解析 Domestic conference

    西村亘平, 有吉 欽吾

    固体イオニクス討論会  2021.12 

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    Presentation type:Oral presentation (general)  

  • ポリアニオン系材料の固相酸化還元電位に関する考察 Domestic conference

    有吉欽吾

    第61回電池討論会  2021.11 

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    Presentation type:Oral presentation (general)  

  • 4電極式セルを用いたボルタンメトリーによるセル内Crosstalk反応の可視化 Domestic conference

    前川 敦志, 中村 太一, 有吉 欽吾

    第61回電池討論会  2021.11 

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    Presentation type:Oral presentation (general)  

  • 希薄電極法を用いた定電位充放電試験によるLi[Li1/2Mn3/2]O4の反応速度の検討 Domestic conference

    廣嶋 伸哉, 有吉 欽吾

    第61回電池討論会  2021.11 

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    Presentation type:Oral presentation (general)  

  • LTO負極上での副反応誘起によるリチウムイオン電池の容量回復手法の提案 Domestic conference

    中村 太一, 有吉 欽吾

    CSJ化学フェスタ  2021.11 

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    Presentation type:Poster presentation  

  • リチウムインサーション電極のレート特性と電極内Liイオン拡散 Domestic conference

    鈴木陸矢、有吉欽吾

    第61回電池討論会  2020.11 

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    Presentation type:Oral presentation (general)  

  • 異種遷移金属元素の置換によるLi[Ni1/2Mn3/2]O4の反応機構制御と高入出力化の検討 Domestic conference

    須川純、有吉欽吾

    第61回電池討論会  2020.11 

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    Presentation type:Oral presentation (general)  

  • Differentiating the Rate Capabilities of Lithium-Nickel-Manganese Oxide, Li[Ni1/2Mn3/2]O4, Insertion Materials and Electrodes Using Diluted Electrode Methods International conference

    Kingo Ariyoshi、Shumpei Masuda、Jun Sugawa

    PRiME2020  2020.10 

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    Presentation type:Poster presentation  

  • Determination of Diffusion Coefficient of Li+ Ions in Porous Electrodes from Rate Capability Tests International conference

    Rikuya Suzuki、Kingo Ariyoshi

    PRiME2020  2020.10 

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    Presentation type:Poster presentation  

  • Solid-State Diffusion Coefficient of Li Ions in Li[Ni1/2Mn3/2]O4 Determined By the Diluted Electrode Method International conference

    Jun Sugawa、Shumpei Masuda、Kingo Ariyoshi

    PRiME2020  2020.10 

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    Presentation type:Poster presentation  

  • 希薄電極法によるLi[Ni1/2Mn3/2]O4の粒子および電極のレート特性 Domestic conference

    須川純、増田俊平、有吉欽吾

    電気化学会第87回大会  2020.03 

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    Presentation type:Oral presentation (general)  

  • 固相反応モデルに基づくMgMn2O4へのLiインサーション反応の速度論的解析 Domestic conference

    有吉欽吾、増田俊平

    電気化学会第87回大会  2020.03 

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    Presentation type:Oral presentation (general)  

  • Li[Ni1/2Mn3/2]O4 のサイクル時における分極挙動 Domestic conference

    江口誠、廣岡誠之、有吉欽吾

    第60回電池討論会  2019.11 

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    Presentation type:Oral presentation (general)  

  • 希薄電極法を用いたLi[Ni1/2Mn3/2]O4正極におけるレート特性の解析 Domestic conference

    増田俊平、須川純、有吉欽吾

    第60回電池討論会  2019.11 

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    Presentation type:Oral presentation (general)  

  • 核生成・成長モデルによるMgMn2O4 のインサーション反応速度の解析 Domestic conference

    増田俊平、有吉欽吾

    2019年電気化学秋季大会  2019.09 

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    Presentation type:Oral presentation (general)  

  • 異種活物質混合電極を利用した局部池反応の可視化 Domestic conference

    鈴木陸矢、有吉欽吾

    2019年電気化学秋季大会  2019.09 

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    Presentation type:Oral presentation (general)  

  • 余剰容量対極を用いたLiNiMO正極の単極評価 Domestic conference

    江口 誠、廣岡 誠之、山田 裕介、有吉 欽吾

    電気化学会第86回大会  2019.03 

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    Presentation type:Oral presentation (general)  

  • スピネル類縁構造を持つ新規Li2NiMnO4の合成とキャラクタリゼーション Domestic conference

    梶川謙介、山田裕介、有吉欽吾

    第44回固体イオニクス討論会  2018.12 

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    Presentation type:Oral presentation (general)  

  • 粒子サイズの異なるリチウムインサーション材料を用いた希薄電極の電気化学インピーダンス挙動 Domestic conference

    谷本真望、山田裕介、有吉欽吾

    第59回電池討論会  2018.11 

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    Presentation type:Oral presentation (general)  

  • Hydrogen reduction synthesis of lithium titanium oxides as a high rate electrode without conductive additive International conference

    Kingo Ariyoshi, Takaya Ino, Yusuke Yamada

    第59回電池討論会  2018.11 

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    Presentation type:Oral presentation (general)  

  • 無歪正極材料Li2Co1.8Ni0.2O4 の合成とインサーション反応機構 Domestic conference

    梶川謙介、折笠有基、山田裕介、有吉欽吾

    第59回電池討論会  2018.11 

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    Presentation type:Oral presentation (general)  

  • 等価回路モデルによる分極性電極の電気化学インピーダンス解析 Domestic conference

    谷本真望、山田裕介、有吉欽吾

    2018年電気化学秋季大会  2018.09 

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    Presentation type:Oral presentation (general)  

  • 酸処理によるMgMn2O4のMg脱離機構の検討 Domestic conference

    増田俊平、山田裕介、有吉欽吾

    2018年電気化学秋季大会  2018.09 

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    Presentation type:Oral presentation (general)  

  • 長寿命リチウムイオン電池用正極としての寸法安定性LiCoMnO4と無歪Li2Co2O4 Invited Domestic conference

    有吉 欽吾

    日本セラミックス協会第31回秋季シンポジウム  2018.09 

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    Presentation type:Oral presentation (invited, special)  

  • Voltage Hysteresis in Li-Rich Materials Examined by Backstitch Charge-Discharge Methods International conference

    K. Ariyoshi, T. Inoue, and Y. Yamada

    58th Battery Symposium in Japan  2017.11 

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    Presentation type:Oral presentation (general)  

  • Effect of electronic conductivity of lithium titanium oxide electrodes on polarization behavior Domestic conference

    Takaya Ino, Masumi Tanimoto, Yusuke Yamada, and Kingo Ariyoshi

    2017.11 

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    Presentation type:Oral presentation (general)  

  • Backstitch法を用いたリチウム過剰正極の電位ヒステリシスに関する検討 Domestic conference

    有吉欽吾,井上貴之,山田裕介

    電気化学会第84回大会  2017.03 

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    Presentation type:Oral presentation (general)  

  • 無関係活物質を用いたリチウムインサーション電極の速度論的解析 Domestic conference

    有吉欽吾,水谷聡,山田裕介

    電気化学会第84回大会  2017.03 

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    Presentation type:Oral presentation (general)  

  • The measurements of side reaction current of lithium insertion electrodes for analyzing the mass balance in lithium-ion cells Domestic conference

    Yuki Fukunishi, Yusuke Yamada, and Kingo Ariyoshi

    2016.11 

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    Presentation type:Oral presentation (general)  

  • The crystal structures and electrochemical behavior of Li-rich materials of LiCoO2-Li2MnO3 Domestic conference

    Takayuki Inoue, Yusuke Yamada, and Kingo Ariyoshi

    2016.11 

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    Presentation type:Oral presentation (general)  

  • Steady-state polarization behavior of lithium insertion electrodes observed by AC measurements Domestic conference

    Satoshi Mizutani, Yusuke Yamada, and Kingo Ariyoshi

    2016.11 

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    Presentation type:Oral presentation (general)  

  • Dimensionally-Stable Lithium Insertion Material of LiCoMnO4 for Long-Life Lithium-Ion Batteries International conference

    K. Ariyoshi and H. Yamamoto

    230th Meeting of The Electrochemical Society  2016.10 

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    Presentation type:Oral presentation (general)  

  • High-Precision Measurement of Side Reaction Current on Lithium Insertion Electrodes in Lithium-Ion Cells International conference

    Y. Fukunishi, Y. Yamada, and K. Ariyoshi

    230th Meeting of The Electrochemical Society  2016.10 

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    Presentation type:Poster presentation  

  • Synthesis and Characterization of Lithium Cobalt Manganese Oxides (LiCoO2-Li2MnO3) as Positive Electrode Material for Lithium-Ion Batteries International conference

    T. Inoue, Y. Yamada, and K. Ariyoshi

    230th Meeting of The Electrochemical Society  2016.10 

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    Presentation type:Poster presentation  

  • Particle Fracture of Highly Crystallized Lithium Insertion Materials Having Spinel-Framework Structure International conference

    K. Ariyoshi, N. Ukumori, and T. Ohzuku

    56th Battery Symposium in Japan  2015.11 

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    Presentation type:Oral presentation (general)  

  • High-Voltage Positive Electrode Material of Lithium Cobalt Manganese Oxides Domestic conference

    Hiroya Yamamoto and Kingo Ariyoshi

    2015.11 

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    Presentation type:Oral presentation (general)  

  • High-Voltage and High-Capacity Lithium Nickel Manganese Oxides for Advanced Lithium-Ion Batteries Invited International conference

    K. Ariyoshi

    The 9th International symposium l the Science and Technology for Advanced Ceramics  2015.10 

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    Presentation type:Oral presentation (invited, special)  

  • スピネル型構造を有する高結晶リチウムインサーション材料の粒子破壊現象 Domestic conference

    有吉欽吾,鵜久森南,小槻勉

    2014年 電気化学秋季大会  2014.09 

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    Presentation type:Oral presentation (general)  

  • High Voltage Li[Ni1/2Mn3/2]O4 (LiNiMO) Positive Electrode for Twelve-volt Lead-free Batteries for Ling-life Applications Invited International conference

    K. Ariyoshi, K. Takaoka, Y. Yamamoto, and T. Ohzuku

    The 7th Asian Conference on Electrochemical Power Sources  2013.11 

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    Presentation type:Oral presentation (general)  

  • Synthesis and Characterization of Layered Lithium Manganese Oxides with Other Transition Metal Ions for High-Capacity Positive-Electrode Materials International conference

    K. Ariyoshi, D. Washida, Y. Zhou, K.-W. Nam, X.-Q. Yang, and T. Ohzuku

    224th Meeting of The Electrochemical Society  2013.11 

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  • Area-specific Impedance of a Single Lithium Insertion Electrode: A Measure to Evaluate Polarization International conference

    T. Ohzuku, F. Ohgaki, and K. Ariyoshi

    224th Meeting of The Electrochemical Society  2013.11 

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  • A Method to Measure the Rate of Side Reactions at the Positive and Negative Electrodes in LTO/LiNiMO Cells for the Second-Generation 12 V Lead-Free Batteries International conference

    K. Ariyoshi, H. Okada, H. Nishi and T. Ohzuku

    222nd of The Electrochemical Society  2012.10 

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    Presentation type:Oral presentation (general)  

  • Zero-volt SPEC Cells to Measure The Rates of Side Reactions on The Positive and Negative Electrodes for Long-Life Lithium-Ion Batteries International conference

    K. Ariyoshi, H. Nishi, and T. Ohzuku

    222nd of The Electrochemical Society  2012.10 

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    Presentation type:Oral presentation (general)  

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Grant-in-Aid for Scientific Research

  • 新規蛍光X線元素イメージング法の開発と電気化学反応のオペランド解析

    Grant-in-Aid for Scientific Research(B)  2022

  • リチウムインサーション電極の反応速度に関する基礎研究

    Grant-in-Aid for Scientific Research(C)  2022

  • リチウムインサーション電極の反応速度に関する基礎研究

    Grant-in-Aid for Scientific Research(C)  2020.04

  • 下水汚泥焼却工程における閉塞トラブル発生メカニズムの解明と発生抑制対策の提言

    Grant-in-Aid for Scientific Research(B)  2019.04

  • バイオフィルム環境の空間時間的定量イメージングによる微生物腐食機構の解明

    Grant-in-Aid for Scientific Research(B)  2018.04

  • Electrode Potentials of Lithium Insertion Materials

    Grant-in-Aid for Scientific Research(C)  2015.04

  • Polarization measurements of lithium insertion materials for advanced lithium-ion batteries

    Grant-in-Aid for Young Scientists(B)  2008

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Contract research

  • 無機固体電解質を用いた全固体リチウム二次電池の創出

    国立研究開発法人 科学技術振興機構  戦略的創造研究推進事業 先端的低炭素化技術開発(ALCA)  2022

Charge of on-campus class subject

  • 初年次ゼミナール

    2022   Weekly class   Undergraduate

  • 固体電気化学特論

    2022   Weekly class   Graduate school

  • 物質化学生命系特別演習第1 (化学バイオ工学分野)

    2022   Intensive lecture   Graduate school

  • 物質化学生命系特別演習第2 (化学バイオ工学分野)

    2022   Intensive lecture   Graduate school

  • 卒業研究Ⅰ

    2022   Intensive lecture   Undergraduate

  • 無機化学Ⅱ

    2022   Weekly class   Undergraduate

  • 電気化学

    2022   Weekly class   Undergraduate

  • 化学バイオ工学特論Ⅰ

    2022   Intensive lecture   Undergraduate

  • 化学バイオ工学概論

    2022   Intensive lecture   Undergraduate

  • 特別演習(化学生物系2回生)

    2022   Intensive lecture   Graduate school

  • 前期特別研究(化学生物系)

    2022   Intensive lecture   Graduate school

  • 卒業研究Ⅱ

    2022   Intensive lecture   Undergraduate

  • 無機化学Ⅲ

    2022   Weekly class   Undergraduate

  • 情報化学演習

    2022   Weekly class   Undergraduate

  • 化学バイオ工学特論Ⅱ

    2022   Intensive lecture   Undergraduate

  • 応用化学実験Ⅱ

    2022   Practical Training   Undergraduate

  • 電気化学

    2021     Undergraduate

  • 無機化学Ⅱ

    2021     Undergraduate

  • 無機エネルギー材料特論

    2021     Graduate school

  • 無機化学Ⅲ

    2021     Undergraduate

  • 応用化学実験Ⅱ

    2021     Undergraduate

  • 情報化学演習

    2021     Undergraduate

  • 無機エネルギー材料特論

    2020     Graduate school

  • 無機化学Ⅲ

    2020     Undergraduate

  • 電気化学

    2020     Undergraduate

  • 応用化学実験Ⅱ

    2020     Undergraduate

  • 情報化学演習

    2020     Undergraduate

  • 無機化学Ⅱ

    2020     Undergraduate

  • 情報化学演習

    2019     Undergraduate

  • 応用化学実験Ⅱ

    2019     Undergraduate

  • 無機エネルギー材料特論

    2019     Graduate school

  • 電気化学

    2019     Undergraduate

  • 無機化学Ⅲ

    2019     Undergraduate

  • 無機化学Ⅱ

    2019     Undergraduate

  • 無機エネルギー材料特論

    2018     Graduate school

  • 無機化学Ⅲ

    2018     Undergraduate

  • 電気化学

    2018     Undergraduate

  • 無機工業化学

    2018     Undergraduate

  • 応用化学実験Ⅱ

    2018     Undergraduate

  • 情報化学演習

    2018     Undergraduate

  • 無機化学Ⅱ

    2018     Undergraduate

  • 情報化学演習

    2017     Undergraduate

  • 応用化学実験Ⅱ

    2017     Undergraduate

  • 電気化学特論

    2017     Graduate school

  • 無機工業化学

    2017     Undergraduate

  • 電気化学

    2017     Undergraduate

  • 無機化学Ⅲ

    2017     Undergraduate

  • 無機化学Ⅱ

    2017     Undergraduate

  • 情報化学演習

    2016     Undergraduate

  • 応用化学実験Ⅱ

    2016     Undergraduate

  • 電気化学特論

    2016     Graduate school

  • 無機工業化学

    2016     Undergraduate

  • 電気化学

    2016     Undergraduate

  • 無機化学Ⅲ

    2016     Undergraduate

  • 無機化学Ⅱ

    2016     Undergraduate

  • 情報化学演習

    2015     Undergraduate

  • 応用化学実験Ⅱ

    2015     Undergraduate

  • 電気化学特論

    2015     Graduate school

  • 無機工業化学

    2015     Undergraduate

  • 電気化学

    2015     Undergraduate

  • 無機化学Ⅲ

    2015     Undergraduate

  • 無機化学Ⅱ

    2015     Undergraduate

  • 無機構造化学

    2014     Undergraduate

  • 化学バイオ工学演習Ⅱ

    2014     Undergraduate

  • 電気化学

    2014     Undergraduate

  • 無機化学Ⅰ

    2014     Undergraduate

  • 無機化学Ⅱ

    2014     Undergraduate

  • 情報化学演習

    2014     Undergraduate

  • 応用化学実験Ⅱ

    2014     Undergraduate

  • 化学バイオ工学演習Ⅱ

    2013     Undergraduate

  • 無機構造化学

    2013     Undergraduate

  • 電気化学

    2013     Undergraduate

  • 無機化学Ⅰ

    2013     Undergraduate

  • 無機化学Ⅱ

    2013     Undergraduate

  • 情報化学演習

    2013     Undergraduate

  • 応用化学実験Ⅱ

    2013     Undergraduate

  • 無機化学Ⅱ

    2012     Undergraduate

  • 情報化学演習

    2012     Undergraduate

  • 応用化学実験Ⅱ

    2012     Undergraduate

  • 無機構造化学

    2012     Undergraduate

  • 電気化学

    2012     Undergraduate

  • 化学バイオ工学演習Ⅱ

    2012     Undergraduate

  • 無機化学I

    2011    

  • 化学バイオ工学演習Ⅱ

    2011     Undergraduate

  • 無機構造化学

    2011     Undergraduate

  • 無機化学II

    2011    

  • 電気化学

    2011     Undergraduate

▼display all