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Cited 7 time in webofscience Cited 11 time in scopus
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Interfacial defect engineering via combusted graphene in V2O5 nanochips to develop high-rate and stable zinc-ion batteries

Authors
Yoo, GeunRyu, Gyeong HeeKoo, Bon-RyulAn, Geon-Hyoung
Issue Date
15-Nov-2021
Publisher
ELSEVIER SCI LTD
Keywords
Energy storage; Zinc-ion batteries; Cathode; Defective engineering; Vanadium oxide
Citation
CERAMICS INTERNATIONAL, v.47, no.22, pp.31817 - 31825
Indexed
SCIE
SCOPUS
Journal Title
CERAMICS INTERNATIONAL
Volume
47
Number
22
Start Page
31817
End Page
31825
URI
https://scholarworks.bwise.kr/gnu/handle/sw.gnu/2993
DOI
10.1016/j.ceramint.2021.08.064
ISSN
0272-8842
Abstract
With the increasing demand of energy sources, various electrical devices have attracted considerable attention. Rechargeable aqueous zinc-ion batteries (ZIBs) represent an attractive choice in the battery industry owing to their unique properties of a high specific capacity, reliable safety, and eco-friendliness. However, the practical application of ZIBs is hindered owing to the unstable energy storing reactions of the vanadium-based cathode, which occur because of the limited electrochemical capacity and kinetics. In this study, we formulated an original strategy based on defect engineering to form interface-defective V2O5 nanochips by using combusted graphene in the electrospun polyacrylonitrile fiber template method. This framework exhibits a high specific capacity, rate capability, and long-tern cycling stability, with a high energy density of 437 W h kg-1 at a power density of 450 W kg- 1. These improvements can be attributed to the acceleration of the diffusion kinetics of zinc ions and electrical conductivity of the electrode via the interfacial Vo and facilitation of the active and stable receptivity of electrochemical reactions between electrons and zinc ions through the provision of interfacial open channels. The proposed approach can promote the development of a promising cathode electrode for high-rate and stable ZIBs as next-generation energy technologies.
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융합기술공과대학 > Department of Energy Engineering > Journal Articles
공학계열 > Dept.of Materials Engineering and Convergence Technology > Journal Articles

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공과대학 (에너지공학과)
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