热处理改进天然石墨的电化学性能  

Improvement of Electrochemical Property of Natural Graphite by Heat-treatment

作　　者：杜翠薇[1] 赵煜娟[2] 吴荫顺[1] 刘庆国[2] 

机构地区：[1]北京科技大学腐蚀与防护中心,北京100083 [2]北京科技大学固体电解质实验室,北京100083

出　　处：《应用化学》2002年第8期801-803,共3页Chinese Journal of Applied Chemistry

摘　　要：The electrochemical property of natural graphite was improved by heat treatment . The treated natural graphite(average particle size of 20 μm) showed reversible specific capacitance of 335 mA·h/g and charge discharge efficiency of 84 3% in the first cycle. The cause of the improvement has been explained in terms of formation of more stable solid electrolyte interface.The electrochemical property of natural graphite was improved by heat treatment . The treated natural graphite(average particle size of 20 μm) showed reversible specific capacitance of 335 mA·h/g and charge discharge efficiency of 84 3% in the first cycle. The cause of the improvement has been explained in terms of formation of more stable solid electrolyte interface.

关 键 词：电化学性能 锂离子电池 天然石墨 负极材料 热处理 改性 

分 类 号：TM912[电气工程—电力电子与电力传动] TM242[一般工业技术—材料科学与工程]