| LiNi0.77Al0.03Co0.2O2正极材料研究 |
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| 引用本文： | 顾健,顾大明,史鹏飞.LiNi0.77Al0.03Co0.2O2正极材料研究[J].电池,2004,34(3):171-172. |
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| 作者姓名： | 顾健 顾大明 史鹏飞 |
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| 作者单位： | 哈尔滨工业大学理学院,黑龙江,哈尔滨,150001;哈尔滨工业大学理学院,黑龙江,哈尔滨,150001;哈尔滨工业大学理学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 采用液相共沉淀法,得到LiNi0.77Al0.03Co0.2O2正极材料,对材料进行结构和电化学性能测试.研究发现:该材料的电化学性能比LiNiO2有很大的提高,其首次充放电比容量分别为175 mAh/g和168 mAh/g,首次充放电效率为96.4%,30次循环后放电容量保持在167 mAh/g,循环效率达到98.5%以上.
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| 关 键 词： | 共沉淀 正极材料 比容量 循环性能 |
| 文章编号： | 1001-1579(2004)03-0171-02 |
| 修稿时间： | 2003年8月5日 |
The study of LiNi0.77Al0.03Co0.2O2 cathode material |
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| GU Jian,GU Da-ming,SHI Peng-fei.The study of LiNi0.77Al0.03Co0.2O2 cathode material[J].Battery Bimonthly,2004,34(3):171-172. |
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| Authors: | GU Jian GU Da-ming SHI Peng-fei |
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| Abstract: | Cathode material LiNi_(0.77)Al_(0.03)Co_(0.2)O_2 was synthesized by a coprecipitation method and its structure and electrochemical properties was tested. The results showed that the properties of the material were considerably enhanced. Its initial charge-discharge specific capacity were 175 mAh/g and 168 mAh/g respectively with the cycle efficiency of 96.4%. Its discharge specific capacity could still retain 167 mAh/g after 30 cycles and coulombic efficiency was over 98.5%. |
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| Keywords: | coprecipitation cathode material specific capacity cycle performance |
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