Surface engineered carbon felt toward highly reversible Fe anode for all-iron flow batteries

doi:10.1016/j.cej.2024.150592

IMR OpenIR

	Surface engineered carbon felt toward highly reversible Fe anode for all-iron flow batteries
	Song, Yuanfang 1,2; Yan, Hui 1,2; Cong, Zhongxiao 1; Yang, Jing 1,2; Li, Ying 1; Tang, Ao 1
通讯作者	Tang, Ao(a.tang@imr.ac.cn)
	2024-05-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	487 页码:10
摘要	Low-cost all-iron flow batteries recently promise a great alternative to conventional flow battery technologies for large-scale energy storage. However, inferior Fe deposition/dissolution reversibility at anode largely impedes further advance of all-iron flow battery in application. Here, we report a surface engineered carbon felt with abundant carbon defects, which realizes highly reversible Fe deposition/dissolution for all-iron flow batteries. By introducing nano-scale pores on carbon fibers via a multistep electrode treatment approach, the modified carbon felt features a high degree of defects and proves effective in promoting Fe/Fe2+ kinetics and improving Fe nucleation and growth morphology, which is beneficial for both uniform Fe deposition and complete Fe dissolution rendering a substantially enhanced reversibility for Fe anode. Theoretical calculations further ascribe the enhanced Fe/Fe2+ reversibility to strong adsorption and intensified hybridization between Fe2+ and carbon defects, while all-iron flow cell tests adopting the modified carbon felt finally demonstrates a high power density of 80 mW cm-2 as well as stable charge-discharge operation over 250 cycles with a Coulombic efficiency of 99 %, which highlights the importance of electrode design in developing stable Fe anode for use in highperformance all-iron flow batteries.
关键词	All-iron flow batteries Carbon defects Iron deposition Anode reversibility Electrode kinetics
资助者	Natural Science Foundation of Liaoning Province
DOI	10.1016/j.cej.2024.150592
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Liaoning Province[2023 -MS -021]
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001215911500001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185879
专题	中国科学院金属研究所
通讯作者	Tang, Ao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Song, Yuanfang,Yan, Hui,Cong, Zhongxiao,et al. Surface engineered carbon felt toward highly reversible Fe anode for all-iron flow batteries[J]. CHEMICAL ENGINEERING JOURNAL,2024,487:10.
APA	Song, Yuanfang,Yan, Hui,Cong, Zhongxiao,Yang, Jing,Li, Ying,&Tang, Ao.(2024).Surface engineered carbon felt toward highly reversible Fe anode for all-iron flow batteries.CHEMICAL ENGINEERING JOURNAL,487,10.
MLA	Song, Yuanfang,et al."Surface engineered carbon felt toward highly reversible Fe anode for all-iron flow batteries".CHEMICAL ENGINEERING JOURNAL 487(2024):10.