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以碳酸盐共沉淀法合成了Ni1/3Co1/3Mn1/3CO3前驱体,然后以Ni1/3Co1/3Mn1/3CO3和LiOH·H2O为原料,合成出了层状锂离子电池正极材料Li Ni1/3Co1/3Mn1/3O2.通过XRD,SEM和电化学测试对Li Ni1/3Co1/3Mn1/3O2材料的结构、形貌及电化学性能进行了测试和表征.结果表明,800℃烧结12 h所合成的样品粒度大小分布比较均匀,以0.2 C充放电,其首次放电容量为153 mAh·g-1,循环30次后容量为140 mAh·g-1.

参考文献

[1] 李鹏,韩恩山,徐宁,许刚,张绍丽.LiNi1/3Co1/3Mn1/3O2的合成及性能[J].电源技术,2005(08):511-514.
[2] 韦旎妮,赖琼钰,高媛,陈元端,卢集政.层状LiCo1/3Ni1/3Mn1/3O2正极材料的合成及电化学性能研究[J].无机化学学报,2005(07):999-1003.
[3] Liu Jingjing;Qiu Weihua;Yu Lingyan;Zhao Hailei,Li Tao .Comparative experiment on layered LiMn1/3Co1/3Ni1/3O2 as the alternative material for LiCoO2[J].,2007,14(02):173.
[4] Nanaki Y;Tsutomu O .Novel lithium insertion material of LiMn1/3Co1/3Ni1/3O2 for advanced lithiumion batteries[J].Journal of Power Sources,2003,1192121:171.
[5] Todorov Y M;Numata K .Effects of the Li:(Mn+Co+Ni) molar ratio on the electrochemical properties of LiMn1/3Co1/3Ni1/3 O2 cathode material[J].Electrochimica Acta,2004,50(2-3):495.
[6] Shaju K M;Peter G Bruce.Macroporous LiMn1/3Co1/3Ni1/3 O2:A high-rote pesitivelectrede for rechargeable lithium batteries[J].Journal of Power Sources,2007(174):1201.
[7] Yabuuchi N;Ohzuku T .Electrochemical behaviors of LiMn1/3 Co1/3Ni1/3O2 in lithium batteries at elevated temperatures[J].Journal of Power Sources,2005,146:636.
[8] 陈玉红,唐致远,汪亮.pH 值对共沉淀制备的LiCo1/3Ni1/3Mn1/3O2结构与电化学性能的影响[J].功能材料,2007(02):204-207.
[9] 钟胜奎,刘乐通,刘洁群,姜吉琼,王健,李阳,郑少英.锂离子电池正极材料LiNi0.4Co0.2Mn0.4O2的合成及电化学性能[J].微细加工技术,2008(06):53-57.
[10] Kim J M;Chung H T .The first cycle characteristics of LiMn1/3 Co1/3Ni1/3O2 charged up to 4.7 V[J].Electrochimica Acta,2004,49:937.
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