摘要
为了改善用作锂离子电池负极材料的球形微晶石墨的电化学性能,采用液相浸渍工艺在石墨颗粒表面上包覆一层树脂炭.结果表明:经包覆后,石墨颗粒表面更为光滑,其首次充放电循环效率从包覆前的81.0%提高到了92.7%,且首次可逆比容量也有所增加.
To improve the electrochemical performance of spherical microcrystalline graphite （SMCG） as anode material for Li-ion battery, resin was coated on the surface of SMCG by means of liquid impregnation. The result showed that the surface of SMCG became smoother after the coating. The coating improved the cycle efficiency of material, from 81.0% before coating to 92.7% after coating.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第11期44-46,61,共4页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(50872032)
关键词
包覆
球形微晶石墨
负极材料
锂离子电池
coatings
spherical microcrystalline graphite
anode material
li-ion battery
