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:包覆法、表面修饰法、添加金属纤维法、机械研磨法、超细微化和纳米化法。通过改性处理,可有效降低石墨电极的不可逆容量,从而使可逆容量和库仑效率较大程度提高。
The methods for modification of graphite negative electrode of Li-ion batteries were reviewed from the essences of graphite modification. The materials could be natural graphite, artificial graphite or graphite carbon fiber. The methods included the surface covering of graphite with disorganized carbon, surface decoration treatments, adding metal fiber and doping, mechanical grinding, super-fined and nanometer treatments. With these methods,irreversible capacity of graphite electrode could be reduced effectively and both reversible capacity and coulombic efficiency were improved.
出处
《电池》
CAS
CSCD
北大核心
2003年第6期384-387,共4页
Battery Bimonthly
