| 层状正极材料LiNi1/6Co1/6Mn2/3O2的制备及电池性能 |
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| 引用本文： | 陈丽,田宜灵,杨俊,贾东镇.层状正极材料LiNi1/6Co1/6Mn2/3O2的制备及电池性能[J].无机化学学报,2005,21(7):1105-1108. |
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| 作者姓名： | 陈丽 田宜灵 杨俊 贾东镇 |
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| 作者单位： | 天津大学理学院化学系,天津,300072 |
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| 摘 要： | 0引言为解决目前日益严重的汽车尾气排放对城市空气造成污染问题,作为绿色能源的锂离子电池已成为动力电池的首选对象。国际上,高容量、大功率锂离子电池早于1995年已开始研制。1996年,我国天津电源研究所也进行了大容量锂离子蓄电池及电池组的探索1]。目前,锂离子电池的正极材料是制约其大规模推广应用的关键。现研究的正极材料主要包括具有层状结构的LiCoO2,LiN iO2和LiM nO2及具有尖晶石结构的LiM n2O4等。其中LiC oO2作为目前唯一已经商业化的正极材料具有理论容量高、可循环性能好等优点,但因Co资源的相对缺乏导致其价格高昂。…
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| 关 键 词： | LiNi1/6Co1/6Mn2/3O2 固-液相合成法 比容量 充放电效率 循环性能 |
| 文章编号： | 1001-4861(2005)07-1105-04 |
| 收稿时间： | 2004/12/20 0:00:00 |
| 修稿时间： | 5/8/2005 12:00:00 AM |
Preparation of Positive Material LiNi1/6Co1/6Mn2/3O2 for Li Ion Battery |
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| CHEN Li,Tian Yi-Ling,YANG Jun and JIA Dong-Zhen.Preparation of Positive Material LiNi1/6Co1/6Mn2/3O2 for Li Ion Battery[J].Chinese Journal of Inorganic Chemistry,2005,21(7):1105-1108. |
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| Authors: | CHEN Li Tian Yi-Ling YANG Jun and JIA Dong-Zhen |
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| Institution: | Chemistry Department of Tianjin University, Tianjin 300072,Chemistry Department of Tianjin University, Tianjin 300072,Chemistry Department of Tianjin University, Tianjin 300072 and Chemistry Department of Tianjin University, Tianjin 300072 |
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| Abstract: | A positive material LiNi1/6Co1/6Mn2/3O2 has been prepared by using solid-liquid phase method. A layer structure similar to LiMnO2 was shown by XRD analysis. The positive electrode of the material had a higher specific capacity, and the reversible specific capacity and irreversible capacity increased with the increase of charge cut-off voltage which has the optimum value of 4.4 V. The battery using the material had higher initial charge-discharge efficiency and better high rate discharge performance, and the cyclic life had also been improved obviously. At the same time, the battery was with excellent high and low temperature performance, and safe performance. |
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| Keywords: | LiNi1/6Co1/6Mn2/3O2 solid-liquid phase synthesis method specific capacity charge-discharge efficiency cyclic life |
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