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.
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
关键词
锂离子电池
石墨
负极材料
包覆
掺杂
Lithium ion barrery
graphite
negative electrode materials
coated
adulterated
