硅酸盐学报2023，Vol.51Issue(7)：1697-1706,10.DOI:10.14062/j.issn.0454-5648.20220901
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
W Doped V2O5 Nanosheets as Cathode Material for High-Performance Aqueous Zinc Ion Battery
摘要
Abstract
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 1000 cycles.This work provides a simple,efficient and feasible strategy for designing high-performance cathode materials in ZIBs.关键词
正极材料/锌离子电池/钨掺杂五氧化二钒Key words
cathode material/zinc ion battery/tungsten doped vanadiumpentoxide分类
化学化工引用本文复制引用
李彪阳,高林,张露露,杨学林..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[J].硅酸盐学报,2023,51(7):1697-1706,10.基金项目
国家自然科学基金(52072217). （52072217）
