期刊
CERAMICS INTERNATIONAL
卷 45, 期 14, 页码 16904-16910出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.05.235
关键词
Carbon fabric; NiMn2O4; Core-shell arrays; Energy storage
资金
- Fundamental Research Funds for the Central Universities [2019CDXYHK0001]
- Chongqing Postdoctoral Science Special Foundation [XmT2018046]
There is still a great challenge to develop new-style battery-type electrode materials with low resistance, large surface area, and stable microstructures on carbon fabric, which limited the development of flexible devices. In this work, NiCo2O4 nanoneedle@NiMn2O4 nanosheet core-shell arrays are constructed on the carbon fabric as a high-capacitance and long-life supercapacitor electrode for the first time. Benefiting from this kind of binder-free core-shell microstructure, the CF@NiCo2O4@NiMn2O4 electrode displays extraordinary specific-capacitance of 539.2 F g(-1) at a current density of 2 A g(-1), and nearly 93.0% retention of total capacitance even after discharging 5000 cycles. The outstanding properties of the hybrid electrode demonstrate that it is of great potential for flexible supercapacitors and batteries the application.
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