高温合成Co_3O_4制备的负极材料的性能  

Performance of anode material prepared by high temperature synthesized Co_3O_4

作　　者：杜萍[1] 高俊奎[1] 张绍丽[1] 

机构地区：[1]天津力神电池股份有限公司,天津300384

出　　处：《电池》2007年第1期55-56,共2页Battery Bimonthly

摘　　要：在不同温度下烧结Co(OH)2制备了Co3O4,然后加入10%的Mn粉作为催化剂,得到锂离子电池负极材料,并进行了电化学性能测试。以40 mA/g充放电,700℃下合成的Co3O4制备的负极材料的循环性能较好,首次充电容量为758.2mAh/g,首次充放电效率为81.9%,50次循环后的容量保持率为81%,库仑效率在98%以上。Co3O4 was obtained by sintering Co（OH）2 at different temperature, then 10% Mn powder was added as catalyst to obtain the anode material. The electrochemieal performance was tested. When eharge-diseharge at 40 mA/g, the anode material prepared by Co3O4 synthesized at 700℃ showed a initial eharge capacity of 758.2 mAh/g and better cycle performanee, its initial eharge-discharge effieieney was 81.9%, the capaeity retention was 81% after 50 eyeles, the coulombie efficiency was above 98%.

关 键 词：锂离子电池 CO3O4 CO(OH)2 锰 

分 类 号：TM912[电气工程—电力电子与电力传动]