Carbon Felts Uniformly Modified with Bismuth Nanoparticles for Efficient Vanadium Redox Flow Batteries
2024
Improving Vanadium Redox Flow Batteries with Bismuth-Modified Carbon Felts
publication
Evidence: high
Author Information
Author(s): Chen Huishan, Li Sen, Zhao Yongxin, Li Xinyue, Zhao Hui, Cheng Longzhen, Li Renting, Dai Pengcheng
Primary Institution: China University of Petroleum (East China)
Hypothesis
Can uniformly modified bismuth nanoparticles on graphite felt electrodes enhance the performance of vanadium redox flow batteries?
Conclusion
The bismuth-modified graphite felt electrodes significantly improve the electrochemical performance of vanadium redox flow batteries.
Supporting Evidence
- The Bi-GF electrode achieved a charge-discharge capacity exceeding 750 mAh.
- Voltage efficiency of the Bi-GF electrode exceeded 84%.
- Bi-GF electrodes maintained over 96% coulombic efficiency after 100 cycles.
Takeaway
This study shows that adding tiny bismuth particles to battery materials helps them work better and last longer.
Methodology
Bismuth nanoparticles were uniformly deposited on graphite felt using a hydrothermal pyrolysis method, followed by electrochemical testing.
Digital Object Identifier (DOI)
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