| 锂离子电池正极材料LiCu0．05Mn1．95O3.9V0．1的结构与电化学特性 |
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| 引用本文： | 刘长久,易凌英,李继春,吴华斌.锂离子电池正极材料LiCu0．05Mn1．95O3.9V0．1的结构与电化学特性[J].中山大学学报(自然科学版),2007,46(B06):281-282. |
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| 作者姓名： | 刘长久 易凌英 李继春 吴华斌 |
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| 作者单位： | 桂林工学院有色金属材料及其加工新技术省部共建教育部重点实验室,广西桂林541004 |
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| 基金项目： | 广西自然科学基金资助项目（0342004-2） |
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| 摘 要： | 以溶胶-凝胶法合成了阴阳离子复合掺杂尖晶石型锰酸锂正极材料LiCu0.05M0．95O3.9F0.1 ,XRD表征合成产物具有良好的尖晶石结构；SEM测试表明所合成产物的颗粒达到了亚微米级，且分布均匀，形貌较好。以该物质作为锂离子电池的正极材料组装成扣式电池，经充放电循环测试可知：LiCu0.05Mn1.95O3.9F0.1材料比LiMn2O4正极材料能够更好地抑制电池的可逆容量在充放电过程中的衰减，循环性能有了很大改善，表现出很好的电化学可逆特性。
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| 关 键 词： | 阴阳离子复合掺杂 溶胶-凝胶法 LiCu0．05Mn1．95O3.9V0．1 电化学性能 |
| 文章编号： | 0529-6579（2007）S1-0281-02 |
| 修稿时间： | 2007-01-10 |
and Cycling Behavior of LiCu0. 05 Mn1. 95 O3. 9 F0. 1 Cathode for Lithium-ion Batteries |
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| LIU Chang-flu, YI Ling-ying, LI Ji-chun, Wu Hua-bin.and Cycling Behavior of LiCu0. 05 Mn1. 95 O3. 9 F0. 1 Cathode for Lithium-ion Batteries[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2007,46(B06):281-282. |
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| Authors: | LIU Chang-flu YI Ling-ying LI Ji-chun Wu Hua-bin |
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| Institution: | Key Laboratory of Nonferrous Materials and New Processing Technology of Ministry of Education, Guilin University of Technology, Guilin 541004, China |
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| Abstract: | The anion-cation multiple doped LiCu0. 05 Mn1 95 O3.9 F0.1 used as cathode material was synthesized by sol-gel method. X-ray diffraction showed that the sample has perfect spinel structure. Scanning electron microscope showed that the particles of the material are submicron with regular shape. The results of the charge-discharge curves showed that LiCu0. 05 Mn1. 95 O3.9 F0. 1 had better performance than undoped LiMn2 O4 material. |
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| Keywords: | Anion-cation multiple dope sol-gel method LiCu0 05 Mn1 95 O3 9 F0 1 electrochemical property |
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