Enhancing the electrochemical properties of NiFe2O4 anode for lithium ion battery through a simple hydrogenation modification
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- 作者：Lei Liua ; Limei Sunb ; Jing Liua ; Xiaoling Xiaoa ; Zhongbo Hua ; Xingzhong Caoc ; Baoyi Wangc ; Xiangfeng Liua ; liuxf@ucas.ac.cn" class="auth_mail ; xiangfengliu2008@163.com" class="auth_mail
- 关键词：Transition metal oxides ; Lithium ion battery ; Anode ; Hydrogenation ; Electrochemical property
- 刊名：International Journal of Hydrogen Energy
- 出版年：15 July 2014
- 年：2014
- 卷：39
- 期：21
- 页码：11258-11266
- 全文大小：1966 K
文摘
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NiFe2O4 octahedrons have been successfully synthesized by a one-step hydrothermal method.
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Hydrogenation modifies the surface structure of NiFe2O4 and generates some oxygen vacancies and metallic Ni.
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Hydrogenation largely improves the cycling capacity (60% higher at 50th cycle) and rate capability (3 times higher at 1 A/g).
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The simple hydrogenation modification method might also be applied to other transition metal oxides electrodes.