W Doped V2O5 Nanosheets as Cathode Material for High-Performance Aqueous Zinc Ion Battery; [W 掺杂改性的 V2O5 纳米片球作为高性能水系锌离子电池正极材料]

被引：0
作者：
Li B. [1 ]
Gao L. [1 ]
Zhang L. [1 ]
Yang X. [2 ]
机构：
[1] College of Electrical Engineering & New Energy, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University, Hubei, Yichang
[2] College of Materials & Chemical Engineering, China Three Gorges University, Hubei, Yichang
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2023年 / 51卷 / 07期
关键词：
cathode material; tungsten doped vanadiumpentoxide; zinc ion battery;
D O I：
10.14062/j.issn.0454-5648.20220901
中图分类号：
学科分类号：
摘要：
Aqueous zinc-ion batteries (ZIBs) are considered to be prospective candidates in energy storage devices because of their excellent safety, crustal abundance, low cost and environmental benignity. Whereas, the design of a satisfied cathode material with a large specific capacity, superior rate performance and long-cycle life is still a significant challenge for ZIBs. Herein, a new strategy is proposed to use W doped V2O5 as cathode material for aqueous ZIBs. The W doping can effectively enlarge the lattice spacing and ion migration efficiency of V2O5, and the formation of W—O bond can obviously alleviate the capacity decay problem caused by structural damage and low intrinsic conductivity in the cycling process. As a result, the V2O5-W cathode exhibits an excellent capacity of 195.0 mA·h/g after 100 cycles at 0.1 A/g, and an impressive rate capability of 243.0 mA·h/g at the high current density of 1 A/g after 1 000 cycles. This work provides a simple, efficient and feasible strategy for designing high-performance cathode materials in ZIBs. © 2023 Chinese Ceramic Society. All rights reserved.
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页码：1697 / 1706
页数：9
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