石油沥青基中间相炭微球用作锂离子电池负电极时的充、放电性能与微观机制  

The Electrochemical Properties and Mechanisms of Petroleum Pitch-based Meso-carbon Microbeads Used as the Negative Electrode Materials in Lithium Ion Batteries

作　　者：郑洪河[1] 张虎成[1] 徐仲榆[2] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453002 [2]湖南大学新型炭材料研究所,湖南长沙410082

出　　处：《河南师范大学学报（自然科学版）》2002年第1期60-65,共6页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省优秀中青年骨干教师基金资助

摘　　要：将石油沥青基中间相炭微球 (P MCMB)进行热处理 ,采用XRD表征了经不同热处理温度 (HTTmax)处理过的P MCMB试样的微观结构 .运用恒电流充、放电法 ,粉末微电极循环伏安法 ,考察了HTTmax对P MCMB试样充放电性能的影响 ,讨论了试样电化学性能与微观结构间的关系 .Petroleum Pitch Based Mesocarbon Microbeads (P-MCMB) were heated under different maximum heat treatment temperatures (HTT max ). The microstructures of these samples were analyzed by means of XRD techique. The charging-discharging performances of these samples were investigated by the galvanostatic charging-discharging experiments and the powder microelectrode cyclic voltametry experiments. The correlations between their electrochemical performances and the microstructures were discussed.

关 键 词：锂离子电池 负极材料 石油沥青基MCMB 充电性能 放电性能 微观机制 中间相炭微球 

分 类 号：TM911.1[电气工程—电力电子与电力传动] O646.54[理学—物理化学]