Mesoporous VCN Nanobelts for High-Performance Flexible Zn-Ion Batteries

Zeyan Zhou, Taotao Zeng, Haoran Zhang and Ding Chen
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Zeyan Zhou: School of Materials Science and Engineering, Hunan University, Changsha 410082, China
Taotao Zeng: School of Materials Science and Engineering, Hunan University, Changsha 410082, China
Haoran Zhang: National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316004, China
Ding Chen: School of Materials Science and Engineering, Hunan University, Changsha 410082, China

Energies, 2022, vol. 15, issue 13, 1-8

Abstract: Vanadium nitride (VN) with a wide working window has been identified as a promising electrode material candidate for batteries due to the high specific capacitance and the excellent electrical conductivity. Here, we have successfully prepared VCN nanobelts, which display mesoporous structure with high specific surface area (54.4 m 2 g −1 ) and the total pore volume was 0.266 cm 3 g −1 . Furthermore, the prepared flexible Zn-ion battery (FZIB) with VCN-5 not only exhibited high specific capacitance (81 μAh cm −2 ), excellent rate capability, and long cyclic durability (77% after 1000 cycles at 0.6 mA cm −2 ) but also had the characteristics of flexibility. This FZIB is important to reduce the difficulty in thermal management and can be used in a series of applications, including wearable electric devices.

Keywords: VCN; energy storage; flexible; Zn-ion batteries (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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