采用固体废弃物兰炭末制备锂离子电池负极材料  

Fabrication of anode materials for a lithium-ion battery with waste semi-coke carbon powder

作　　者：江行国[1] 程晓华[1] 文华[1] 柳永宁[1] 

机构地区：[1]西安交通大学金属材料强度国家重点实验室,陕西西安710049

出　　处：《新型炭材料》2014年第6期503-507,共5页New Carbon Materials

基　　金：国家科技支撑计划(2009BAA20B02)~~

摘　　要：以固体废弃物兰炭焦末为原料,通过硼(B)掺杂及高温处理制备出改性兰炭粉末材料。研究B掺杂量对其作为锂离子电池负极材料的影响。结果表明,B掺杂质量分数为8%时,经2 300℃高温处理,兰炭的电化学性能达到最佳,首次脱锂容量为361 m Ah/g,在1 C电流密度下经300次循环后,容量为314 m Ah/g,表现出较为优良的循环性能。Waste semi-coke powder generated in semi-coke production and transportation was doped with 8 mass% boron by a high temperature treatment at 2 300 ℃. Results indicate that the doping overcomes the shortcomings of low coulombic efficiency, short cycle life, and there are no charge and discharge platforms due to a high content （ 15 mass% ） of impurity in the raw materials. The first discharge capacity is 361 mAh/g at a rate of 0.1 C and the reversible capacity is 314 mAh/g after 300 cycles at charge and discharge ratesof 1 C, showing excellent cycling performance.

关 键 词：锂离子电池负极材料 石墨 兰炭 掺杂 热处理 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ127.11[化学工程—无机化工]