A flexible hybrid capacitor based an NiCo2S4 nanowire electrode with an ultrahigh capacitance

被引:22
|
作者
Xia, Tong [1 ]
Liu, Ying [1 ]
Dai, Meizhen [1 ]
Xia, Qing [1 ]
Wu, Xiang [1 ,2 ,3 ]
机构
[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[3] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
关键词
Supercapacitor; -; Electrodes;
D O I
10.1039/d0dt04381h
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
It is well-known that the excellent cycling stability and high energy density of electrode materials is very important for supercapacitors. However, their actual performance falls far behind and does not satisfy the practical demand. In this study, we synthesized NiCo2S4 nanowire bundles on a nickel foam via facile hydrothermal routes. The as-obtained product as an electrode material possesses excellent specific surface area, which suggests that numerous active sites on the electrode surface can shorten the diffusion channel of ions. The assembled asymmetric supercapacitor delivers an energy density of 57.36 W h kg(-1) at 1412.92 W kg(-1). Also, it exhibits excellent mechanical stability even at different bending angles.
引用
收藏
页码:4045 / 4052
页数:8
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