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

Zeyan Zhou; Taotao Zeng; Haoran Zhang; Ding Chen

doi:10.3390/en15134932

Energies (Jul 2022)

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

Zeyan Zhou,
Taotao Zeng,
Haoran Zhang,
Ding Chen

Affiliations

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

DOI: https://doi.org/10.3390/en15134932
Journal volume & issue: Vol. 15, no. 13
p. 4932

Abstract

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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 m2 g−1) and the total pore volume was 0.266 cm3 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.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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