A P2-type Na0.7(Ni0.6Co0.2Mn0.2)O2 cathode with excellent cyclability and rate capability for sodium ion batteries

被引:27
作者
Choi, Jonghyun
Kim, Kyeong-Ho
Jung, Chul-Ho
Hong, Seong-Hyeon [1 ]
机构
[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea
基金
新加坡国家研究基金会;
关键词
LAYERED OXIDE; PERFORMANCE; STOICHIOMETRY;
D O I
10.1039/c9cc05550a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new P2-type Na-0.7(Ni0.6Co0.2Mn0.2)O-2 was prepared via co-precipitation and its electrochemical properties as a cathode for sodium ion batteries were compared with those of O3-type Na(Ni0.6Co0.2Mn0.2)O-2, focusing on phase stability and cycling performance. The P2-type delivered a high capacity of 108 mA h g(-1) after 300 cycles at 2C.
引用
收藏
页码:11575 / 11578
页数:4
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