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| 1 | Large scale preparation of 20 cm×20 cm graphene modified carbon felt for high performance vanadium redox flow battery显示文摘Vanadium redox flow batteries(VRFBs)are widely applied in energy storage systems(e.g.,wind energy,solar energy),while the poor activity of commonly used carbon-based electrode limits their large-scale application.In this study,the graphene modified carbon felt(G/CF)with a large area of 20 cm×20 cm has been successfully prepared by a chemical vapor deposition(CVD)strategy,achieving outstanding electrocatalytic redox reversibility of the VRFBs.The decorating graphene can provide abundant active sites for the vanadium redox reactions.Compared with the pristine carbon felt(CF)electrode,the G/CF composite electrode possesses more defective sites on surface,which enhances activity toward VO^(2+)/VO^(2+)couple and electrochemical performances.For instance,such G/CF electrode delivered remarkable voltage efficiency(VE)of 88.4%and energy efficiency(EE)of 86.4%at 100 mA·cm^(-2),much higher than CF electrode by 2.1%and 3.78%,respectively.The long-term cycling stability of G/CF electrode was further investigated and a high retention value of 47.6%can be achieved over 600 cycles.It is demonstrated that this work develops a promising and effective strategy to synthesize the large size of carbon electrode with high performances for the next-generation VRFBs. | Ting Long Yong Long Mei Ding Zhizhao Xu Jian Xu Yiqiong Zhang Mingliang Bai Qijun Sun Gen Chen Chuankun Jia | 2021 | Nano Research2021，14，10： | 3 |
| 2 | 铬铁氧化还原液流电池与其电极改性的研究显示文摘储能技术是大规模新能源应用的关键,是实现碳达峰、碳中和目标的重要途径。液流电池安全稳定,其中,铬铁液流电池成本更低且绿色环保,更适合大规模新能源储能。电池电极是发生电化学反应的主要场所,是铬铁液流电池的关键组件之一,其性能直接影响电池效率。综述了铬铁液流电池的发展历程和应用现状,总结了铬铁液流电池电极的材料选择和改性的研究现状。结合国内外相邻领域的研究态势,认为蓬松生物质材料改性碳材料电极有望成为该领域的研究热点。 | 朱昊天 谢小银 白恩瑞 徐重阳 吴晟 | 2023 | 电源技术2023，47，11： | 0 |
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