首页|锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的合成及性能

锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的合成及性能

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采用氢氧化物共沉淀法合成了LiNi1/3Co1/3Mn1/3(OH)2前驱体,然后以Ni1/3Co1/3Mn1/3(OH)2和LiOH·H2O为原料,合成出了层状锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2.通过XRD、SEM和电化学测试对LiNi1/3-Co1/3Mn1/3O2材料的结构、形貌及电化学性能进行了测试和表征.结果表明,800℃烧结12h所合成的样品粒度大小分布比较均匀,该材料以0.2C充放电,其首次放电容量为150mAh·g-1,循环30次后容量为137mAh·g-1.
Synthesis and Performance of Cathode Material LiNi1/3Co1/3Mn1/3O2 for Lithium-ion Batteries
The cathode material LiNi1/3CO1/3 Mn1/3O2 for lithium ion battery is prepared by the hydroxide co-precipitation method. X-ray diffraction(XRD), scanning electron microscopy (SEM) and electrochemical tests are used to characterize the structure, appearance and electrochemical performance of LiNi1/3Co1/3Mn1/3O2. It is found that the sample synthesized at 800℃ for 12h has homogenous distribution of particles. The electrochemical test shows that the initial discharge capacity of LiNi1/3Co1/3Mn1/3O2 powder is 150mAh·g-1 at the rate of 0.2C, and the capadity retains 137mAh·g-1 after 30 cycles.

lithium-ion batteriescathode materialsLiNi1/3Co1/3Mn1/3O2electrochemical performances

钟胜奎、刘乐通、姜吉琼、刘洁群、王健、李阳、朱峰

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桂林工学院材料与化学工程系,桂林,541004

桂林工学院有色金属及材料加工新技术教育部重点实验室,桂林,541004

锂离子电池 正极材料 LiNi1/3Co1/3Mn1/3O2 电化学性能

广西高校人才小高地建设环境工程创新团队资助计划项目广西自然科学基金

桂教人[2007]71号桂科自0833259

2009

材料导报
重庆西南信息有限公司

材料导报

CSTPCDCSCD北大核心
影响因子：0.605
ISSN：1005-023X
年,卷(期)：2009.23(6)
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