锂离子电池负极材料的现状与发展

Status and development on negative active material for lithium-ion batteries

介绍了锂离子电池负极材料的研究开发与应用现状 ,并对其发展进行了探讨。目前已实际用于锂离子电池的负极材料基本上都是碳素材料 ,其比容量达到 30 0mAh/ g以上 ,并已接近LiC6的理论比容量 (372mAh/ g)。负极材料的研究与开发重点将朝着高比容量、高充放电效率、高循环性能以及低成本方向发展 。

The status and development of R&D of the negative electrode materials in Li-ion battery was discussed. Up to now, the applicable negative electrode materials for Li-ion battery were basically carbon. The capacity was higher than 300mAh/g and approached the theoretical specific capacity of LiC 6(372mAh/g).The future emphasis of the R&D of the materials would be higher capacity, higher charge/discharge efficiency,higher cyclic performance and lower cost.The specific capacity of a practical negative electrode material would be over the theoretical level of LiC 6.