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Featured researches published by Issei Ikeuchi.


international renewable and sustainable energy conference | 2014

P2-type Na x [Fe,Ni,Mn]O 2 for high capacity Na-ion batteries

Kazuki Hashimoto; Kei Kubota; Issei Ikeuchi; Ismael Saadoune; Shinichi Komaba

A new solid-solution of sodium containing layered transition metal oxides having P2-type structure, (1-x)Na<sub>2/3</sub>[Ni<sub>1/3</sub>Mn<sub>2/3</sub>]O<sub>2</sub>- xNa<sub>1/2</sub>[Fe<sub>1/2</sub>Mn<sub>1/2</sub>]O<sub>2</sub> (x = 1/3 ~ 2/3), is synthesized, and their electrochemical properties are examined in aprotic Na cells. Among the solid-solution materials, a Na//Na<sub>11/18</sub>Fe<sub>1/6</sub>Ni<sub>2/9</sub>Mn<sub>11/18</sub>O<sub>2</sub> cell delivers the highest reversible capacity of 170 mAh g<sup>-1</sup> at the averaged operating voltage of 2.8 V with good capacity retention.


Chemical Communications | 2014

P2-type Na2/3Ni1/3Mn2/3−xTixO2 as a new positive electrode for higher energy Na-ion batteries

Hiroaki Yoshida; Naoaki Yabuuchi; Kei Kubota; Issei Ikeuchi; Arnd Garsuch; Martin Schulz-Dobrick; Shinichi Komaba


Journal of Physical Chemistry C | 2015

New Insight into Structural Evolution in Layered NaCrO2 during Electrochemical Sodium Extraction

Kei Kubota; Issei Ikeuchi; Tetsuri Nakayama; Chikara Takei; Naoaki Yabuuchi; Hiromasa Shiiba; Masanobu Nakayama; Shinichi Komaba


Journal of Power Sources | 2017

Reversible Li storage for nanosize cation/anion-disordered rocksalt-type oxyfluorides: LiMoO2 – x LiF (0 ≤ x ≤ 2) binary system

Nanami Takeda; Satoshi Hoshino; Lixin Xie; Shuo Chen; Issei Ikeuchi; Ryuichi Natsui; Kensuke Nakura; Naoaki Yabuuchi


ACS Applied Materials & Interfaces | 2016

Thermal Stability of NaxCrO2 for Rechargeable Sodium Batteries; Studies by High-Temperature Synchrotron X-ray Diffraction

Naoaki Yabuuchi; Issei Ikeuchi; Kei Kubota; Shinichi Komaba


232nd ECS Meeting (October 1-5, 2017), | 2017

Lithium Molybdenum Oxyfluorides As High-Capacity Positive Electrodes for Rechargeable Lithium Batteries

Nanami Takeda; Satoshi Hoshino; Issei Ikeuchi; Ryuichi Natsui; Kensuke Nakura; Naoaki Yabuuchi


Archive | 2014

Oxyde métallique combiné, substance active pour électrode positive pour batterie rechargeable au sodium, électrode positive pour batterie rechargeable au sodium et batterie rechargeable au sodium

Shinichi Komaba; 慎一 駒場; Naoaki Yabuuchi; 直明 藪内; Issei Ikeuchi; 一成 池内; Hiroaki Yoshida; 紘章 吉田; Tomohiro Sato; 佐藤 智洋; Kenji Shizuka; 志塚 賢治


17th International Meeting on Lithium Batteries (June 10-14, 2014) | 2014

Impacts of Mg and Al Substitution on Na2/3Ni1/3Mn2/3O2 As Positive Electrode Materials for Na-Ion Batteries

Issei Ikeuchi; Kei Kubota; Naoaki Yabuuchi; Shinichi Komaba


17th International Meeting on Lithium Batteries (June 10-14, 2014) | 2014

P2-Type Na2/3Ni1/3Mn2/3-xTixO2 as a 3.7 V Class Positive Electrode for Na-Ion Batteries

Kei Kubota; Hiroaki Yoshida; Naoaki Yabuuchi; Issei Ikeuchi; Arnd Garsuch; Martin Schulz-Dobrick; Shinichi Komaba


17th International Meeting on Lithium Batteries (June 10-14, 2014) | 2014

Structural, Electrochemical and Thermal Studies on NaxCrO2 for Na-Ion Batteries

Kei Kubota; Issei Ikeuchi; Naoaki Yabuuchi; Shinichi Komaba

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Shinichi Komaba

Tokyo University of Science

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Hiroaki Yoshida

Tokyo University of Science

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Chikara Takei

Tokyo University of Science

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Hiromasa Shiiba

Nagoya Institute of Technology

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