| 离子电池正极材料LiNi0.5Mn0.5O2的合成 |
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| 引用本文： | 肖 劲,曾雷英,陈召勇,赵 浩,彭忠东. 离子电池正极材料LiNi0.5Mn0.5O2的合成[J]. 无机化学学报, 2006, 22(4): 685-690 |
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| 作者姓名： | 肖 劲 曾雷英 陈召勇 赵 浩 彭忠东 |
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| 作者单位： | 中南大学冶金科学与工程学院,长沙,410083 |
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| 摘 要： | 采用共沉淀法制备锂离子电池正极材料LiNi0.5Mn0.5O2，前驱体制备过程中金属离子氢氧化物的形貌、粒径分布和最终合成材料的性能息息相关。本文讨论了共沉淀反应过程中沉淀体系、pH值、搅拌速度和氨水浓度对沉淀产物形貌的影响。同时还考察了烧结制度对材料电化学性能的影响。结果表明，在优化条件下制备的正极材料LiNi0.5Mn0.5O2首次放电容量高达178 mAh·g-1，50个循环后放电容量稳定保持在165 mAh·g-1(电压范围2.8～4.5 V，电流密度30 mA·g-1)。
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| 关 键 词： | 锂离子电池； 正极材料； 共沉淀； 循环性能 |
| 文章编号： | 1001-4861(2006)04-0685-06 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2006-02-21 |
Synthesis of LiNi0.5Mn0.5O2 as Cathode Material for Lithium Rechargeable Cells |
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| XIAO Jin,ZENG Lei-Ying,CHEN Zhao-Yong,ZHAO Hao and PENG Zhong-Dong. Synthesis of LiNi0.5Mn0.5O2 as Cathode Material for Lithium Rechargeable Cells[J]. Chinese Journal of Inorganic Chemistry, 2006, 22(4): 685-690 |
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| Authors: | XIAO Jin ZENG Lei-Ying CHEN Zhao-Yong ZHAO Hao PENG Zhong-Dong |
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| Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083 and School of Metallurgical Science and Engineering, Central South University, Changsha 410083 |
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| Abstract: | |
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| Keywords: | lithium-ion battery cathode material co-precipitation cycle performance |
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