| 锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的制备及性能研究 |
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| 引用本文： | 李学良,张向峰. 锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的制备及性能研究[J]. 金属功能材料, 2011, 18(4): 42-46 |
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| 作者姓名： | 李学良 张向峰 |
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| 作者单位： | 1. 合肥工业大学化学工程学院,安徽合肥,230009
2. 可控化学与材料化工安徽省重点实验室,安徽合肥,230009 |
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| 摘 要： | 采用溶胶-凝胶法制备了锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2,并考察了烧结温度对材料结构、表面形貌和电化学性能的影响.XRD和SEM测试结果表明,900℃下烧结得到的样品是粒径在0.3～0.5 μm范围的球形粒子,具有最佳的阳离子有序度；充放电测试结果表明,其在0.1C倍率下首次放电容量达到148.8...
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| 关 键 词： | 正极材料 LiNi1/3 Co1/3 Mn1/3O2 溶胶-凝胶法 电化学性能 |
Synthesis and Electrochemical Properties of LiNi1/3CO1/3Mn1/3O2 Cathode Materials for Lithium-ion Batteries |
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| LI Xue-liang,ZHANG Xiang-feng. Synthesis and Electrochemical Properties of LiNi1/3CO1/3Mn1/3O2 Cathode Materials for Lithium-ion Batteries[J]. Metallic Functional Materials, 2011, 18(4): 42-46 |
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| Authors: | LI Xue-liang ZHANG Xiang-feng |
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| Affiliation: | (School of Chemical Engineering,Hefei University of Technology,Hefei 230009,Anhui,China;Anhui Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering,Hefei 230009,Anhui,China) |
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| Abstract: | The LiNi1/3Co1/3Mn1/3O2 cathode materials were synthesized by sol-gel method.The effects of sintering temperatures on the properties of LiNi1/3Co1/3Mn1/3O2 materials were investigated by XRD,SEM and electrochemical test.The result indicates that the sample sintered at 900 ℃ is composed of spherical particals with size of 0.3-0.5 μm,and has the best cationic degree of order.The initial specific discharge capacity of 148.8 mAh/g is obtained and the discharge capacity retention rate is 89.2% after 20 cycles between 2.8-4.4 V at 0.1C,which shows better cycle performance. |
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| Keywords: | cathode materials LiNi1/3Co1/3Mn1/3O2 sol-gel method electrochemical properties |
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