| 球形Li[Ni0.8Go0.1Mn0.1]O2的合成及性能研究 |
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| 引用本文： | 帅莉芳,王子港,李奇,杨晖. 球形Li[Ni0.8Go0.1Mn0.1]O2的合成及性能研究[J]. 电源技术, 2011, 35(1): 32-35 |
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| 作者姓名： | 帅莉芳 王子港 李奇 杨晖 |
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| 作者单位： | 南京工业大学材料学院锂离子电池安全研究与测试中心,江苏南京,210009 |
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| 基金项目： | 江苏省自然科学基金，国家青年自然科学基金 |
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| 摘 要： | 采用氨配合氢氧化物共沉淀法合成了前驱体[N.0.8Co0.1Mn0.1](OH)2,并对其合成工艺进行了研究.经过高温焙烧制备了锂离子电池正极材料Li[Ni0.8Co0.1Mn0.1]O2,研究了焙烧温度对其形貌及性能的影响.实验表明,水浴恒温50℃同时氮气保护下,控制溶液DH=11.0.氨水与金属盐浓度比为0.5:1...
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| 关 键 词： | 锂离子电池 正极材料 共沉淀法 Li[Ni0.8CO0.1Mn0.1]O2 [Ni0.8Co0.1Mn0.1](OH)2 |
Synthesis and electrochemical properties of Li[Ni_(0.8)Co_(0.1)Mn_(0.1)]O_2 with spherical structure |
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| SHUAI Li-fang,WANG Zi-gang,LI Qi,YANG Hui. Synthesis and electrochemical properties of Li[Ni_(0.8)Co_(0.1)Mn_(0.1)]O_2 with spherical structure[J]. Chinese Journal of Power Sources, 2011, 35(1): 32-35 |
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| Authors: | SHUAI Li-fang WANG Zi-gang LI Qi YANG Hui |
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| Affiliation: | SHUAI Li-fang,WANG Zi-gang,LI Qi,YANG Hui (Research Center of the Safety of Lithium Ion Batteries,College of Materials Science and Engineering,Nanjing University of Technology,Nanjing Jiangsu 210009,China) |
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| Abstract: | The spherical Li[Ni0.8Co0.1Mn0.1]O2 powders were synthesized by heating the precursor [Ni0.8Co0.1Mn0.1](OH)2 powders which were prepared via ammonia-hydroxide co-precipitation method.The optimized synthesis condition to obtain the precursor with a homogeneous particle size distribution and a high tap density was as following:50 ℃,pH=11.0,stirring speed=800 r/min,the concentration ratio of ammonia to metal-salt=0.5 and under N2 atmosphere.In addition,the spherical-shaped Li[Ni0.8Co0.1Mn0.1]O2 particles with diameter of 12μm were obtained after firing the precursor under O2 atmosphere.Electrochemical tests show that Li[Ni0.8Co0.1Mn0.1]O2 prepared by this method deliveres an initial specific discharge capacity of 187.9 mAh/g at the current density of 18 mA/g,with a capacity retention rate up to 90.0% after 20 cycles. |
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| Keywords: | Li[Ni0.8CO0.1Mn0.1]O2 [Ni0.8Co0.1Mn0.1](OH)2 |
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