Journal
ENERGY & FUELS
Volume 36, Issue 14, Pages 7890-7897Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.2c01825
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Funding
- National Natural Science Foundation of China [51304052]
- Doctoral Program of Higher Education of China [20133514120002]
- Foundation of Hunan Provincial Department of Education for Outstanding Young Scholars [18B163]
- Natural Science Foundation of Changsha city [kq2202195]
- 2020 Hunan Postgraduate Education Innovation Project and Professional Ability Enhancement Project [CX20200901]
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In this paper, a new stable WS2/WO3 cathode for aluminum-ion batteries was prepared, which enhances the electron transfer rate between material interfaces and exhibits high specific capacity and capacity retention.
Aluminum-ion batteries have become a promising energy storage device due to their low cost, large volume specific capacity, and environmental friendliness. Due to the poor reversibility and conductivity of traditional electrode materials, the development of aluminumion batteries has been greatly hindered. In this paper, a new stable WS2/WO3 cathode for aluminum-ion batteries was prepared by the coprecipitation method. The introduction of the WS2/WO3 heterojunction greatly enhances the electron transfer rate between the material interfaces, and the large specific surface area of the material also provides more active sites for the electrochemical reaction. The WS2/WO3 cathode retained a high specific capacity of 200 mAh/g with a capacity retention of 80% at 1000 mA/g after 100 cycles.
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