High-pressure synthesis of lithium-rich layered rock-salt Li2(Mn3/8Co1/4Ni3/8)O3-x for lithium battery cathodes
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- 作者：Yasuaki Matsuda ; Kota Suzuki ; Masaaki Hirayama ; hirayama@echem.titech.ac.jp" class="auth_mail ; Ryoji Kanno
- 关键词：Lithium battery ; Positive electrode ; Oxygen-deficient phase ; High-pressure synthesis
- 刊名：Solid State Ionics
- 出版年：1 September 2014
- 年：2014
- 卷：262
- 期：Complete
- 页码：88-91
- 全文大小：965 K
文摘
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Lithium-rich layered rock-salt with oxygen deficiency Li2Mn3/8Co1/4Ni3/8O3-x (0 ≤ x ≤ 0.75) directly synthesized under high pressure.
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Oxygen-deficient phases exhibit higher discharge capacities than stoichiometric Li2Mn3/8Co1/4Ni3/8O3.
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Oxygen-deficient phases are electrochemically active without passing through an initial activation process.