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

被引：128

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

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2017年 / 82卷

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

页码：150 / 154

页数：5

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