Journal of the Chinese Ceramic Society, Volume. 51, Issue 7, 1697(2023)
W Doped V2O5 Nanosheets as Cathode Material for High-Performance Aqueous Zinc Ion Battery
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.
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LI Biaoyang, GAO Lin, ZHANG Lulu, YANG Xuelin. W Doped V2O5 Nanosheets as Cathode Material for High-Performance Aqueous Zinc Ion Battery[J]. Journal of the Chinese Ceramic Society, 2023, 51(7): 1697
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Received: Oct. 21, 2022
Accepted: --
Published Online: Oct. 7, 2023
The Author Email: Biaoyang LI (l_521529@163.com)
CSTR:32186.14.