| Rare Earth Elements-Doped LiCoO2 Cathode Material for Lithium-Ion Batteries |
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| 作者姓名： | 魏进平 曹晓燕 潘桂玲 叶茂 阎杰 |
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| 作者单位： | Institute of New Energy Material Chemistry，College of Chemistry and Chemical Engineering，State Key Laboratory of Functional Polymer Materials for Adsorption and Separation，Institute of New Energy Material Chemistry，Institute of New Energy Material Chemistry Nankai University，Tianjin 300071，China，Ocean University of China，Qingdao 266003，China，Nankai University，Tianjin 300071，China，Nankai University，Tianjin 300071，China，Nankai University，Tianjin 300071，China |
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| 基金项目： | Projectsupportedbythe 973Programs (2 0 0 2CB2 1180 0 )ofChina |
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| 摘 要： | Thedevelopmentoflithium ionbatteriesreliesonthesuccessfuldevelopmentoflithiumintercalationandde intercalationcompounds ,whichareusedasthecathodeandanodeactivematerials .Forthecathode ,LiCoO2 ,LiNiO2 andLiMn2 O4 areselectedasthecan didate .Amongthematerials ,thelayeredtransitionmetaloxideofLiCoO2 isregardedasthemostattrac tivecathodematerialforcommerciallithium ionbat terybecauseofitshighspecificcapacity ,highoperat ingcellvoltageandexcellentrechargeability .Recent ly ,moreextensivestudies…
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| 关 键 词： | 锂离子电池 阴极材料 钴酸锂 掺杂 稀土 |
Rare Earth Elements-Doped LiCoO2 Cathode Material for Lithium-Ion Batteries |
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| Wei Jinping ,Cao Xiaoyan ,Pan Guiling ,Ye Mao ,Yan Jie.Rare Earth Elements-Doped LiCoO2 Cathode Material for Lithium-Ion Batteries[J].Journal of Rare Earths,2003,21(4):466-468. |
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| Authors: | Wei Jinping Cao Xiaoyan Pan Guiling Ye Mao Yan Jie |
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| Affiliation: | Wei Jinping 1*,Cao Xiaoyan 2,Pan Guiling 3,Ye Mao 1,Yan Jie 1 |
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| Abstract: | Some compounds of LiCo1-xRExO2 (RE=rare earth elements and x=0.01～0.03) were prepared by doping rare earth elements to LiCoO2 via solid state synthesis. The microstructure characteristics of the LiCo1-xRExO2 were investigated by XRD. It was found that the lattice parameters c are increased and the lattice volumes are enlarged compared to that of LiCoO2. Moreover, the performance of LiCo1-xRExO2 as the cathode material in lithium ion battery is improved, especially LiCo1-xYxO2 and LiCo1-xLaxO2. The initial charge/discharge capacities of LiCo0.99Y0.01O2 and LiCo0.99La0.01O2 are 174/154 (mAh*g-1) and 159/149 (mAh*g-1) respectively, while those for LiCoO2 working in the same way are only 139/131 (mAh*g-1). |
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| Keywords: | metallic material lithium ion battery doping cathode materials LiCoO 2 rare earths |
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