| 锂离子电池正极材料Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2的制备与表征 |
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| 引用本文： | 陈红,徐春艳,魏英进,王春忠.锂离子电池正极材料Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2的制备与表征[J].吉林大学学报(理学版),2009,47(4):823-826. |
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| 作者姓名： | 陈红 徐春艳 魏英进 王春忠 |
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| 作者单位： | 1. 吉林大学 材料科学与工程学院, 长春 130012,2. 北华大学 物理学院, 吉林 吉林 132013,3. 襄樊525泵业有限公司, 湖北 襄樊 ,441021 |
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| 基金项目： | 国家重点基础研究发展计划973项目基金，教育部长江学者和创新团队发展计划项目基金，吉林省科技发展计划项目基金 |
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| 摘 要： | 采用柠檬酸盐法合成了Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2（x=0.1,0.2,0.3,0.4,0.5）正极材料. 利用X射线衍射(XRD), Raman光谱和红外光谱(FTIR)等方法研究不同质量分数的Co对材料晶体结构的影响, 并分析了原因. 对不同组分的材料进行了电化学性能测试, 结果表明, 当x=0.5时, 样品充放电容量高, 循环性能优良.
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| 关 键 词： | 锂离子电池 Li［CoxLi 1/3-x/3Mn2/3-2x/3］O2 Raman光谱 红外光谱 |
| 收稿时间： | 2008-11-12 |
Synthesis and Characterizations of Li[Co_xLi_((1/3)-(x/3))Mn_((2/3)-(2x/3))]O_2 Cathode Materials for Lithium Secondary Batteries |
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| CHEN Hong,XU Chun-yan,WEI Ying-jin,WANG Chun-zhong.Synthesis and Characterizations of Li[Co_xLi_((1/3)-(x/3))Mn_((2/3)-(2x/3))]O_2 Cathode Materials for Lithium Secondary Batteries[J].Journal of Jilin University: Sci Ed,2009,47(4):823-826. |
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| Authors: | CHEN Hong XU Chun-yan WEI Ying-jin WANG Chun-zhong |
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| Institution: | 1. College of Materials Science and Engineering, Jilin University, Changchun 130012, China|2. College of Physics, Beihua University, Jilin |132013, Jilin Province, China|3. Xiangfan 525 Pump Industry Co Ltd, Xiangfan |441021, Hubei Province, China |
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| Abstract: | LiCoxLi1/3-x/3Mn2/3-2x/3]O2(x=0.1,0.2,0.3,0.4,0.5) cathode materials were synthesized by means of the citric acid-based sol-gel method.Their structures and electrochemical properties were investigated via XRD,Raman,FTIR and electrochemical charge-discharge cycling.The results show that the material with x=0.5 exhibited the highest reversible capacity and the best capacity retention. |
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| Keywords: | Li[CoxLi1/3-x/3Mn2/3-2x/3]O2 |
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