摘要
采用高温固相法合成镍钴铝三元正极材料LiNi0．8Co0．15Al0．05O2考察了以氢氧化锂和硝酸锂为锂源制备的材料的物理性能、微观形貌及电化学性能。通过对合成工艺的精细控制，可以制得残碱量、悬浮液pH值低的LiNi0．8Co0．15Al0．05O2以硝酸锂为锂源，在800℃、10h条件下制备的产物，在3．0～4．3V放电，1C首次放电比容量为172．7mAh／g，循环100次的容量保持率为92．1％。
Ni, Co and Al ternary, cathode material LiNi0.8Co0.15Al0.05O2 was prepared by method of high temperature solid state reaction. Physical property, morphology and electrochemical performance of the product prepared by lithium hydroxide （LiOH） and lithium nitrate （LiNO3 ） as lithium source were investigated. Finely controlling synthetic process could prepareLiNi0.8Co0.15Al0.05O2 with low residual alkali content and low pH value of suspension. When discharged in 3.0 - 4. 3 V, the initial 1 C specific discharge capacity of product synthesized by LiNO3 as lithium source and in the condition of 800 ℃, 10 h was 172. 7 mAh/g,the capacity retention of 100 cycles was 92. 1%.
出处
《电池》
CAS
CSCD
北大核心
2014年第3期157-160,共4页
Battery Bimonthly
