Tungsten-consolidated crystal structure of LiNi 0.6 Co 0.2 Mn 0.2 O 2 cathode materials for superior electrochemical performance
作者: Yunjiao LiTongxing LeiYongxiang ChenPuliang LiWei LiJunchao ZhengJie ZhuShiyi DengGuolin Cao
作者单位: 1School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
2Citic Dameng Mining Industries Limited, Nanning 530028, PR China
3Qing Hai Kuai Lv High-tech Co., Ltd, Qinghai 810000, PR China
刊名: Applied Surface Science, 2020, Vol.509
来源数据库: Elsevier Journal
DOI: 10.1016/j.apsusc.2020.145287
关键词: Lithium ion batteriesLi(Ni 0.6 Co 0.2 Mn 0.2 ) 1- x W x O 2Disordered LiNiCoMnW layerW gradient cathode material
原始语种摘要: Abstract(#br)Tungsten-consolidated LiNi 0.6 Co 0.2 Mn 0.2 O 2 cathode materials (NCMWs) are successfully synthesized by Ni 0.6 Co 0.2 Mn 0.2 (OH) 2 @W precursor via a facile polyvinyl pyrrolidone (PVP)-assisted wet coating process followed by heat treatment. Experimental results demonstrate that a proper tungsten (W) content can migrate into transition metal layer to form W-gradient cathode material, while the excess W can induce the formation of a disordered LiNiCoMnW mixed layer on the surface due to the interdiffusion, finally forming core-shell cathode material. The physical-electrochemical properties of particles surface can also be optimized by W introduction. The W introduction would...
全文获取路径: Elsevier  (合作)
影响因子:2.112 (2012)

  • glyph 符号
  • cathode 阴极
  • crystal 晶体
  • consolidated 粘着
  • performance 性能
  • materials 工业三废
  • gradient 倾斜度
  • structure 构造
  • superior 优秀的
  • layer