锂离子电池负极材料中间相炭微球的改性

Modification of mesocarbon microbeads as anode material for lithium-ion battery

介绍了中间相炭微球(MCMB)作为锂离子动力电池负极材料的优缺点及对其进行改性的必要性,并对几种改性方法的原理进行了综述,主要有表面氧化、膨化处理、包覆及掺杂改性等。改性处理后,可有效提高中间相炭微球电极的容量、循环性能或大电流性能,分析了上述改性方法提高电极性能的原因。

The advantages and disadvantages of mesocarbon microbeads （ MCMB ） used as anode material for power lithium - ion battery, as well as the necessity of modification were discussed. The principle of modification methods such as surface oxidation, thermal expansion, coating and doping modification were briefly introduced. The capacity, cyclic performance or discharge performance of MCMB anode were improved significantly through modifications. The enhancing of electrode performance was analyzed.