摘要
将前驱体Ni0.13Co0.13Mn0.54（OH）1.6与Li2CO3混合,烧结合成了富锂锰基正极材料Li[LixNi0.13Co0.13Mn0.54]O2（x=0.09,0.12,0.16,0.22,0.24,0.29,0.33,0.37）,采用XRD、SEM对其进行表征,并进行充放电测试。研究结果表明：最佳配锂量为x=0.22,此时Li1.22Ni0.133Co0.131Mn0.54O2正极材料以12.5 m A/g的充放电电流密度,在2~4.8 V之间进行电性能测试,初始放电比容量高达253.7 m Ah/g,首次效率为68.4%。
The cathode material of Li [ LixNi0.13 Co0.13 Mn0.54 ] 02 （x = 0.09, 0.12, 0.16, 0.22, 0.24, 0.29, 0.33, 0.37） was synthesized by sintering the mixture of Ni0.13 Co0.13 Mn0.54 （ OH ） 1.6 and Li2CO3, which was analyzed by X-ray diffractometry （XRD）, scanning electron microscopy （SEM） and electrochemical tests. The results showed that Li3.22Ni0.133Co0.131Mn0.54O2 prepared with optimal proportion of Lithium （x=0.22） achieved the best electrochemical performance. The testing of the electrical performance between 2-4.8 V at 12.5 mA/g showed the initial discharge capacity was up to 253.7 mAh/g with the initial efficiency at 68.4%.
出处
《矿冶工程》
CAS
CSCD
北大核心
2015年第5期113-116,共4页
Mining and Metallurgical Engineering
基金
转制科研院所创新能力专项经费(2014EG113173)
