Neutron diffraction analysis and electrochemical performance of spinel Ni(Mn2∿span style='font-style: italic'>xCox)O4 as anode materials for lithium ion battery
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- 作者：Hu Zhaoa ; Lei Liua ; Zhongbo Hua ; Limei Sunb ; sunlm@ciae.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Songbai Hanb ; Yuntao Liub ; Dongfeng Chenb ; Xiangfeng Liua ; liuxf@ucas.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：A Oxides ; C X-ray diffraction ; C Neutron diffraction ; D Crystal structure ; D Electrochemical properties
- 刊名：Materials Research Bulletin
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：77
- 期：Complete
- 页码：265-270
- 全文大小：1733 K
文摘
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The reversible capacity and cyclability of Ni(Mn2−xCox)O4 first increases and then decreases with increasing Co content.
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Neutron diffraction and Rielveld refinements are applied to analyze the site occupancies of Mn, Co, O and Ni.
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Excessive Co ions in 8a and 16d sites reduce the structure stability leading to poor electrochemical performance.