期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 46, 期 6, 页码 7946-7956出版社
WILEY
DOI: 10.1002/er.7692
关键词
electrode; electrostatic flocking; long cyclic life; MnO2 nanofiber; supercapacitor
资金
- Shanxi Provincial Natural Science Foundation of China [201803D421081, 201801D121104]
- National Natural Science Foundation of China [U1810114, 51773184]
A new double-layer hybrid electrode based on MnO2 nanofibers was prepared by the electrostatic flocking method, which reduces interfacial resistance and improves the energy density and cyclic life of the supercapacitor.
A new double-layer hybrid electrode based on MnO2 nanofibers was prepared by the electrostatic flocking method. Compared with the traditional dopping method, the MnO2 nanofibers can be embedded on surface of graphene/polyvinylidene fluoride (PVDF) composite coating. The symmetrical supercapacitor based on electrostatic flocking electrode was further assembled, which showed a high energy density of 12.1 Wh kg(-1) and ultra-long cyclic life of 109.4% after 10 000 cycles. The result was attributed to that electrostatic flocking MnO2 nanofibers were directly exposed to electrolyte, reducing interfacial resistance. The work provides a new way to prepare high-performance electrode for various applications.
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