Electrochemical behavior and morphology of LiB compound anode materials  

作　　者：刘志坚 尹健 孟振强 种晋 周德壁 

机构地区：[1]State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083 [2]State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaSchool of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China [3]Tianjin Institute of Power Sources, Tianjin 300381, China

出　　处：《中国有色金属学会会刊：英文版》2006年第1期127-131,共5页Transactions of Nonferrous Metals Society of China

基　　金：Project(50172062) supported by the National Natural Science Foundation of China

摘　　要：Electrochemical behavior of LiB compound in LiPF6-DMC/EMC/EC was studied. And morphology of the compound was investigated by SEM. The results show that there are three discharge potential plateaus for the LiB compound, corresponding to 0.46, 0.69 and 0.8 V (vs Li+/Li) respectively, its total discharge specific capacity is up to 660 mA·h/g, only first two potential plateau can be charged, its specific capacity is 274 mA·h/g. After discharging, the morphology of the Li compound is still fibrous shape.Electrochemical behavior of LiB compound in LiPF6-DMC/EMC/EC was studied. And morphology of the compound was investigated by SEM. The results show that there are three discharge potential plateaus for the LiB compound, corresponding to 0.46, 0.69 and 0.8 V （vs Li^＋/Li） respectively, its total discharge specific capacity is up to 660 mA· h/g, only first two potential plateau can be charged, its specific capacity is 274 mA· h/g. After discharging, the morphology of the Li compound is still fibrous shape.

关 键 词：锂电池 电化学 形态学 正极材料 LiB 放电性能 

分 类 号：TB39[一般工业技术—材料科学与工程]