摘要
采用共沉淀法先合成[Ni0.83Co0.11Mn0.06](OH)2前驱体,在纯氧气氛下经过两段高温烧结生成LiNi0.83Co0.11Mn0.06O2正极材料。通过在前驱体配锂烧结过程中加入纳米TiO2实现了Ti 4+掺杂,经过掺杂后的Li[Ni0.83Co0.11Mn0.06]0.98Ti0.02O2正极材料在1C电流密度下的放电比容量高达185.6mAh/g,循环100圈后容量维持在178.8mAh/g,容量保持率高达96.33%。
[Ni0.83Co0.11Mn0.06](OH)2 precursor was firstly synthesized by coprecipitation method,and LiNi0.83Co0.11 Mn0.06O2 cathode material was formed by two-stage sintering process in pure oxygen atmosphere.Ti 4+ion doping was achieved by adding nano-TiO2 in sintering process of precursor.Li[Ni0.83Co0.11Mn0.06]0.98Ti0.02O2 cathode shows an initial capacity of 185.6mAh/g at current density of 1C,and a capacity of 178.8mAh/g can be obtained after 100cycles,which corresponding retention ratio is up to 96.33%.
作者
张晨
郑江峰
唐攀
ZHANG Chen;ZHENG Jiang-feng;TANG Pan(Guangdong Jiana Energy Technology Co.Ltd.,Qingyuan 513056,Guangdong,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2019年第11期66-69,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
广东省扬帆计划引进创新创业团队专项基金（粤财教[2017]108号）
