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%.
出处
《电池》
CAS
CSCD
北大核心
2007年第1期55-56,共2页
Battery Bimonthly
