包覆和掺杂对锂离子电池石墨负极材料的影响  

The Influence of Coating and Doping for Graphite Negative Electrode Materials in Li-ion Battery

作　　者：余小军[1] 綦瑞萍[2] 杨绍斌[3] 

机构地区：[1]江苏技术师范学院计算机科学与工程学院,江苏常州213001 [2]辽宁工程技术大学材料科学与工程系,辽宁阜新123000 [3]辽宁工程技术大学基础科学部,辽宁阜新123000

出　　处：《江苏技术师范学院学报》2006年第4期6-9,共4页Journal of Jiangsu Teachers University of Technology

摘　　要：从石墨改性的本质出发,综述了锂离子电池石墨负极材料的改性方法:表面包覆法和掺杂其它元素等。通过改性处理,可有效降低石墨的比表面积,从而大幅度提高石墨负极材料的首次可逆容量和库仑效率,改善电池的循环性能。The methods for modification of graphite negative electrode in lithium ion batteries are reviewed from the essences of graphite modification. The methods include the surface of graphite coated disorganized carbon and adulterated other elements. With these methods, surface area can be reduced effectively and the first reversible capacity and coulombic efficiency were improved. At the same time, cycle performance of batteries is improved.

关 键 词：锂离子电池 石墨 负极材料 包覆 掺杂 

分 类 号：TM242[一般工业技术—材料科学与工程]