不同碳源对制备LiFePO_4/C复合材料性能的影响  

Effect of Different Carbon on the Properies of LiFePO_4/C

作　　者：湛雪辉[1] 李飞[1] 孙伟[2] 王增辉[2] 刘辉[2] 周随安[1] 曹芬[1] 李侠[1] 

机构地区：[1]长沙理工大学化学学院,中国长沙410076 [2]中南大学资源加工与生物工程学院,中国长沙410086

出　　处：《湖南师范大学自然科学学报》2010年第2期63-67,共5页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金资助项目(50774016);湖南省科技攻关资助项目(2007SK4029)

摘　　要：研究了PVB、β-环糊精为碳源,对制备的LiFePO4为锂离子电池正极材料时的性能的影响.结果表明:PVB、β-环糊精对LiFePO4的晶体结构没有影响,PVB为碳源制备的LiFePO4的颗粒粒径要比β-环糊精的小,导电性能、大电流充放电性能和循环性能更好.Research the effect on the Lithium-ion battery cathode material performance that prepared by LiFePO4 with PVB,β-cyclodextrin as carbon source was researched.The results show that,PVB,β-cyclodextrin have no effect on crystal structure of LiFePO4,the particle size of LiFePO4 which prepared by the carbon source PVB is smaller than the carbon source β-cyclodextrin,and has better conductive performance,high-current charge-discharge performance and cycle performance.

关 键 词：PVB Β-环糊精 LIFEPO4/C正极材料 电性能 

分 类 号：O782[理学—晶体学]