摘要
为提高锂离子电池正极材料LiFePO4的充放电性能,用N i对LiFePO4进行掺杂.研究了N i掺杂量对LiFePO4性能的影响.在LiN ixFe1-xPO4(x=0,0.01,0.03,0.05,0.10)材料中,LiN i0.03Fe0.97PO4具有比LiFePO4更好的电化学性能,用80 mA/g的电流进行充放电时,第2次放电比容量为133.278 mAh/g,循环20次后为127.655 mAh/g.
Ni is doped into LiFePO4 to improve its performance. The effect of Ni content on the LiFePO4 is introduced. It is found in the test that the capacity of LiNi0. 03 Fe0.97 PO4 is higher LiNix Fe 1 - x PO4 （ x = 0. 00,0. 01,0.03,0. 05,0. 07 and 0. 10 ）. The 2^st discharge capacity of and 20^th capacity of 127. 655 mAh/g can be obtained at 80 mA/g charge - discharge rate.
出处
《桂林工学院学报》
北大核心
2005年第3期326-329,共4页
Journal of Guilin University of Technology
基金
国土资源部盐湖资源与环境开放实验基金资助(盐开003)
