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| 锂离子电池正极材料Li(Ni1/3Co1/3Mn1/3)O2电极过程动力学研究 | |
| 引用本文： | 刘伶,关昶,张乃庆,孙克宁. 锂离子电池正极材料Li(Ni1/3Co1/3Mn1/3)O2电极过程动力学研究[J]. 人工晶体学报, 2012, 41(1): 200-203,220 |
| 作者姓名： | 刘伶 关昶 张乃庆 孙克宁 |
| 作者单位： | 1. 吉林化工学院化工与材料工程学院,吉林市,132022 2. 哈尔滨工业大学科学研究院,哈尔滨,150001 |
| 摘 要： | 采用共沉淀法制备锂离子电池正极材料Li(Ni1/3Co1/3Mn1/3)O2,通过循环伏安法和电化学交流阻抗分析,探讨了锂离子在LiNi1/3Co1/3Mn1/3O2中嵌入和脱出的机制。循环伏安测试结果表明,LiNi1/3Co1/3Mn1/3O2材料结构中不存在John-teller效应,从而抑制了电极材料和电解液之间的副反应。电化学交流阻抗测试结果表明,随着电压的升高Rct(电荷转移电阻)值逐渐减小,而随着循环次数的增加Rct值逐渐增大。 |
| 关 键 词： | 锂离子电池 正极材料 Li(Ni1/3Co1/3Mn1/3)O2 电极过程动力学 |
Electrode Kinetic of Li(Ni1/3Co1/3Mn1/3) O2 Cathode Material for Lithium Ion Battery |
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| LIU Ling , GUAN Chang , ZHANG Nai-qing , SUN Ke-ning. Electrode Kinetic of Li(Ni1/3Co1/3Mn1/3) O2 Cathode Material for Lithium Ion Battery[J]. Journal of Synthetic Crystals, 2012, 41(1): 200-203,220 | |
| Authors: | LIU Ling GUAN Chang ZHANG Nai-qing SUN Ke-ning |
| Affiliation: | 1.College of Chemical and Material Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China;2.Science Research Center,Harbin Institute of Technology,Harbin 150001,China)(Received 29 September 2011) |
| Abstract: | The compound of Li(Ni1/3Co1/3Mn1/3)O2 was synthesized by co-precipitation method.Its electrode kinetic was investigated by cyclic voltammety(CV) and electrochemical impedance spectroscopy(EIS).The results of CV showed that there was no John-teller effect and reaction between electrode material and electrolyte in the Li(Ni1/3Co1/3Mn1/3)O2.The results of EIS showed that the charge transfer resistance Rct was decreased when the voltage increased and increased when the cycling number increased. |
| Keywords: | lithium ion battery cathode material LiNi1/3Co1/3Mn1/3O2 electrode kinetics |
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