期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 861, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.158000
关键词
Ce doping; Layered-spinel hetero-structure; Lithium ions diffusion coefficient; Lithium-rich cathode materials; Lithium ion battery
资金
- National Natural Science Foundation of China [51772119]
The effects of cerium doping and the formation of layered-spinel hetero-structure on the electrochemical properties of lithium-rich cathode material were studied. Cerium doping and formation of spinel phase facilitated lithium ion diffusion and inhibited structural collapse during cycling, leading to improved cycling stability and rate capability.
The effects of cerium doping and the formation of layered-spinel hetero-structure on the electrochemical properties of lithium-rich cathode material were studied. The doped sample with layered-spinel phase exhibited enhanced cycling rate capability and long-term cyclability, which achieved an initial discharge capacity of 265.4 mAh g(-1) at 0.1 C and the capacity retention was 98.2% after 100 cycles at 1.0 C. The existence of layered-spinel hetero-structure in lithium-rich layered cathode material induced by cerium doping was believed to contribute to the remarkable improvement of cycling stability and rate capability. Cerium doping and the formation of spinel phase together facilitated lithium ion diffusion and inhibited the structural collapse during cycling. (C) 2020 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据