In situ preparation of flaky attached CuCo2S4 microspheres for high-performance asymmetric supercapacitors

被引：0
作者：
Tian Xie
Jinxiao Xu
Jie Wang
Chuangli Ma
Linghao Su
Fengying Dong
Liangyu Gong
机构：
[1] Qingdao Agricultural University,College of Chemistry and Pharmaceutical Sciences
来源：
Ionics | 2020年 / 26卷
关键词：
Solvothermal; CuCo; S; Supercapacitors; Pseudocapacitor; Asymmetric device;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Bimetallic sulfides are appealing great interest for renewable accumulated energy and conversion devices because of the multiple merits. Herein, flaky attached CuCo2S4 microspheres are reported via a simple solvothermal strategy and serve as an electrode to evaluate the supercapacitors characteristics. It should be noted that such electrode presents a high specific capacitance of 752 F·g−1 at 1 A·g−1 and excellent cycling stability over 4500 cycles. In addition, an asymmetric device is assembled by using CuCo2S4 and AC as the positive electrode and negative electrode, respectively, which achieves a high-energy density (46.2 Wh·kg−1 at 0.796 kW·kg−1) and retains a long cycling life over 8000 cycles. Such performance demonstrates that CuCo2S4 with the unique structure might be great potential for energy storage.
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页码：3555 / 3563
页数：8
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