Water-activated graphite felt as a high-performance electrode for vanadium redox flow batteries
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- 作者：Daniel Manaye Kabtamu ; Jian-Yu Chen ; Yu-Chung Chang ; Chen-Hao Wang ; chwang@mail.ntust.edu.tw
- 关键词：Vanadium redox flow battery ; Electrode ; Electrochemical activity ; Water activation ; Water vapor
- 刊名：Journal of Power Sources
- 出版年：2017
- 出版时间：15 February 2017
- 年：2017
- 卷：341
- 期：Complete
- 页码：270-279
- 全文大小：2925 K
- 卷排序：341
文摘
The effect of water activation on the electrochemical activity of GF is investigated. A high content of oxygen-containing groups improves the performance of VRFB. Improved wettability due to increased surface-active oxygen functional groups. WA-GF-5 min improves battery energy efficiency from 69.84% to 78.12% at 80 mA cm-2. WA-GF-5 min acts as more powerful positive electrode for the VO2+/VO2+ redox couple.