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Chikaaki Okuda
Researcher at Toyota
Publications - 45
Citations - 1209
Chikaaki Okuda is an academic researcher from Toyota. The author has contributed to research in topics: Lithium & Electrode. The author has an hindex of 16, co-authored 45 publications receiving 987 citations.
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Journal ArticleDOI
Theoretical and Experimental Analysis of Porous Electrodes for Lithium-Ion Batteries by Electrochemical Impedance Spectroscopy Using a Symmetric Cell
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Capacity-Fading Mechanisms of LiNiO2-Based Lithium-Ion Batteries I. Analysis by Electrochemical and Spectroscopic Examination
Tsuyoshi Sasaki,Takamasa Nonaka,Hideaki Oka,Chikaaki Okuda,Yuichi Itou,Yasuhito Kondo,Yoji Takeuchi,Yoshio Ukyo,Kazuyoshi Tatsumi,Shunsuke Muto +9 more
TL;DR: In this article, Sasaki et al. performed analysis by Electrochemical and Spectroscopic Examination (E.I.E. Examination) with the help of a spectrometer.
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Effects of Mg-substitution in Li(Ni,Co,Al)O2 positive electrode materials on the crystal structure and battery performance
Hiroki Kondo,Youji Takeuchi,Tsuyoshi Sasaki,Shigehiro Kawauchi,Yuichi Itou,Osamu Hiruta,Chikaaki Okuda,Masao Yonemura,Takashi Kamiyama,Yoshio Ukyo +9 more
TL;DR: In this paper, a co-precipitation method was used to obtain LiNi 0.8-x Co 0.15 Al 0.05 O 2 after 500 cycles.
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Factors affecting cycling life of LiNi0.8Co0.15Al0.05O2 for lithium-ion batteries
Yoshinari Makimura,Tsuyoshi Sasaki,Takamasa Nonaka,Yusaku F. Nishimura,Takeshi Uyama,Chikaaki Okuda,Yuichi Itou,Yoji Takeuchi +7 more
TL;DR: In this article, the performance of cylindrical lithium-ion batteries of LiNi0.8Co0.15Al0.05O2 (NCA) with graphite was examined in terms of the rechargeable capacity and polarization of NCA derivatives, and an empirical relation was obtained to be Q = 181.4 − 725.5y in which Q reaches zero at y = 0.25.
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Numerical simulation of thermal behavior of lithium-ion secondary batteries using the enhanced single particle model
TL;DR: In this article, an enhanced single particle (ESP) model for lithium-ion secondary batteries is proposed to estimate the local heat generation rates without excessive computation costs. But the model does not account for all the physical processes, including the solution phase limitation.