正极材料Li_3V_2(PO_4)_3的制备及性能  

The synthesis and performance of Li_3V_2(PO_4)_3 cathode material

作　　者：陈灵谦[1] 

机构地区：[1]湘潭大学化学学院,湖南湘潭411105

出　　处：《电池》2007年第2期107-108,共2页Battery Bimonthly

摘　　要：采用碳热还原法制备了Li3V2(PO4)3锂离子电池正极材料,通过XRD、循环伏安和充放电测试对样品的性能进行了研究。结果表明:所合成的Li3V2(PO4)3样品属于单斜晶系;样品(850℃,16 h)以0.2C倍率充放电,首次充放电容量分别是129 mAh/g和121 mAh/g;循环30次后,放电容量为104 mAh/g。LiaV2（PO4）3 cathode material for Li-ion battery was prepared by the carbon thermal reduction method. The performance of the sample was studied by XRD, cyclic voltammetry and charge-discharge tests. The results showed that the synthesized Li3V2（PO4）3 sample had a single monoelinic structure. The initial charge-discharge capacity of the sample （850 ℃, 16 h） was 129 mAh/g and 121 mAh/g with 0.2 C and the discharge capacity was 104 mAh/g after 30 cycles.

关 键 词：锂离子电池 正极材料 LI3V2(PO4)3 碳热还原法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]