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锂离子电池正极材料LiCoO2的制备新方法
引用本文:魏进平,邓斌,阎杰,周震,宋德瑛. 锂离子电池正极材料LiCoO2的制备新方法[J]. 高等学校化学学报, 2001, 22(Z1): 9-12
作者姓名:魏进平  邓斌  阎杰  周震  宋德瑛
作者单位:南开大学新能源材料化学研究所, 天津 300071
摘    要:利用电解金属钴制得Co(OH)2-2xRx(其中R为有机酸和无机酸根离子)中间产物,然后根据钴含量与LiOH·H2O)固相反应制得了LiCoO2.通过X光衍射,扫描电镜以及激光粒度测试表明,所得的锂离子正极材料LiCoO2结构纯正,粒度分布集中,比表面积较大:对其进行充放电实验表明,放电容量比较高,首次放电容量达到146mAh/g,循环10次后容量仍保持在142mAh/g.该法可大大降低制备LiCoO2的生产成本,具有十分广阔的应用前景.

关 键 词:锂离子电池  正极材料  LiCoO2  
文章编号:0251-0790(2001)10Z-9-04
收稿时间:2001-06-29
修稿时间:2001-06-29

A New Technique for Preparation of the Cathode Material of Lithium-ion Battery
WEI Jin-Ping,DENG Bin,YAN Jie,ZHOU Zhen,SONG De-Ying. A New Technique for Preparation of the Cathode Material of Lithium-ion Battery[J]. Chemical Research In Chinese Universities, 2001, 22(Z1): 9-12
Authors:WEI Jin-Ping  DENG Bin  YAN Jie  ZHOU Zhen  SONG De-Ying
Affiliation:Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China
Abstract:The cathode material LiCoO2 of lithium-ion batteries can be obtained from the reaction of LiOH·H2O and Co(OH)2-2xRx(R is the inorganic or organic acid radicals), which is the midst product of the electrolysis of the metal cobalt in a given electrolyte. The achieved cathode material LiCoO2 for lithium-ion batteries has a single phase and its granularity distribution relatively concentrates through the experiments of XRD. SEM and Laser Granularity Testing, The discharge capacity is relatively high which reaches 146mAh/g at the first time of discharging and still maintains 142mAh/g after 10 cycles of charge/discharge experiments. The cost for the preparation of the cathode material LiCoO2 can greatly be decreased through this technique, which has a well-promising application future.
Keywords:LiCoO2
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