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钴包埋镍酸锂的Mg掺杂改性研究 被引量：1

Research on Mg-doping LiNiO_2 coated with Co
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摘要 采用化学共沉淀法,得到不同比例的Mg和Ni均匀分布的氢氧化物沉淀,再以此为核,用Co(OH)2进行包覆,得到前驱体,和LiOH.H2O混合均匀后,经过高温煅烧得到不同镁含量的LiNi0.92-xMgxCo0.08O2正极材料,研究了不同比例Mg2+掺杂对钴包埋镍酸锂材料电性能的影响,结果表明,掺杂量x为0.005时,其1C放电比容量高达183.7mAh/g,循环100次的容量保持率为97.60%,循环性能较佳。 The precusor of LiNi0.92-xMgxCo0.08O2 was prepared by co-precipitation method,in which the spherical Ni0.92-xMgx（OH）2 grains were coated with Co（OH）2.The precursor was mixed with LiOH·H2O and the mixture was sintered at high temperature.The effect of Mg2＋ doping on LiNi0.92-xMgxCo0.08O2 was studied.The results showed that the discharge capacity of LiNi0.92-xMgxCo0.08O2 was 183.7 mAh/g at 1 C when x=0.005,and it had good cyclic performance,its capacity retention was 97.60% after 100 cycles.
作者 李月涛 李刚 王茹英 刘庆国
机构地区 赵县强能电源有限公司 北京科技大学固体电解质研究室
出处 《电池工业》 CAS 2010年第6期348-350,共3页 Chinese Battery Industry
关键词 锂离子电池 正极材料 镍酸锂 Mg掺杂 循环性能 Li-ion battery cathode material LiNiO2 Mg doping cyclic performance
分类号 TM912.1 [电气工程—电力电子与电力传动]
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参考文献9

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共引文献4

同被引文献18

  • 1唐爱东,王海燕,吴晓,黄可龙.掺杂锂镍钴锰氧材料的合成及电化学性能[J].电源技术,2007,31(12):959-962. 被引量：10
  • 2PAN Cheng-chi, BANKS Craig E, SONG Wei-xin, WANG Chi-wei, CHEN Qi-yuan, JI Xiao-bo. Recent development of LiNixCoyMnO2: Impact of micro/nano structures for imparting improvements in lithium batteries[J] .Transactions of Nonferrous Metals Society of China, 2013, 23(1): 108-119.
  • 3LIAO P Y, DUH J G. SHEEN S R. Microstructure and electrochemical performance of LiNi0.6Co0.4-xMnxO2 cathode materials[J]. Journal of Power Sources, 2005, 143:212-218.
  • 4ZHANG Pei-xin, ZHANG Li, REN Xiang-zhong, YUAN Qiu-hua, LIU Jian-hong, ZHANG Qian-ling. Preparation and electrochemical properties of LiNi1/3Co1/3Mn1/3 O2-PPy composites cathode materials for lithium-ion battery[J]. Synthetic Metals, 2011, 161: 1092-1097.
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引证文献1

二级引证文献3

电池工业
2010年 第6期

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