Relationship between Electrochemical Pre-Treatment and Cycle Performance of a Li-Rich Solid-Solution Layered Li1−α[Ni0.18Li0.20+αCo0.03Mn0.58]O2 Cathode for Li-Ion Secondary Batteries
スポンサーリンク
概要
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In our previous paper (J. Power Sources, 183, 344 (2008)), we proposed the application of a pre-cycling treatment to a Li-rich solid-solution layered cathode (xLi2MnO3·yLi[Ni0.5Mn0.5]O2·zLi[Co1/3Ni1/3Mn1/3]O2 where (x + y + z = 1)) before the charge/discharge cycling process to obtain enhanced capacities stable above 250 mAh g−1. The aim of the present work is to reduce the duration of this pre-cycling process. The cycling performance dependence of Li1−α[Ni0.18Li0.20+αCo0.03Mn0.58]O2 on the pre-cycling processing parameters, such as the number of cycles, voltage limits, and current density was explored. The processing conditions were then optimized, which ultimately reduced the pre-cycling treatment time from one week to 6.5 h.
著者
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Matsumoto Futoshi
Department Of Applied Chemistry Tokyo Metropolitan University
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Watanabe Akihiro
Department Of Applied Chemistry Okayama University Of Science
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ITO Atsushi
Nissan Research Center, Nissan Motor Co., Ltd.
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Kobayashi Genki
Department Of Material And Life Chemistry Kanagawa University
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Hatano Masaharu
Nissan Research Center Nissan Motor Co. Ltd.
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Ohsawa Yasuhiko
Nissan Research Center Nissan Motor Co. Ltd.
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Ito Atsushi
Nissan Research Center Nissan Motor Co. Ltd.
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WATANABE Akihiro
Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
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FUKUNISHI Mika
Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
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SATO Yuichi
Research Institute for Engineering, Kanagawa University
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KOBAYASHI Genki
Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
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