K0.67Ni0.17Co0.17Mn0.66O2: A cathode material for potassium-ion battery

被引:126
作者
Liu, Cailing [1 ,2 ]
Luo, Shaohua [2 ]
Huang, Hongbo [1 ,2 ]
Wang, Zhiyuan [2 ]
Hao, Aimin [2 ]
Zhai, Yuchun [2 ]
Wang, Zhaowen [1 ]
机构
[1] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
[2] Northeastern Univ Qinhuangdao, Sch Resources & Mat, Qinhuangdao 066004, Peoples R China
基金
中国国家自然科学基金;
关键词
Potassium-ion batteries; Cathode; Ternary material; K0.67Ni0.17Co0.17Mn0.66O2; SODIUM; ELECTRODES; XPS;
D O I
10.1016/j.elecom.2017.08.008
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A novel layered ternary material K0.67Ni0.17Co0.17Mn0.66O2 has been fabricated via a co-precipitation assisted solid-phase method and further evaluated as a cathode for potassium-ion batteries for the first time. Highly reversible K+ intercalation/deintercalation is demonstrated in this material. It delivers a reversible capacity of 76.5 mAh/g with average voltage of 3.1 V and shows good cycling performance with capacity retention of 87% after 100 cycles at 20 mA/g. This work may give a new insight into developing cathode materials for potassium-ion batteries.
引用
收藏
页码:150 / 154
页数:5
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