A novel carbon paper based flow field design strategy toward high power density vanadium flow battery operation

doi:10.1016/j.jpowsour.2024.235080

IMR OpenIR

	A novel carbon paper based flow field design strategy toward high power density vanadium flow battery operation
	Cong, Zhongxiao 1,2; Song, Yuanfang 1; Song, Yuxi 1,3; Li, Ying 1; Tang, Ao 1
通讯作者	Song, Yuxi(yxsong@ycit.edu.cn) ; Tang, Ao(a.tang@imr.ac.cn)
	2024-09-30
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	615 页码:9
摘要	The all-vanadium flow battery (VFB) is a promising candidate for long-duration energy storage. Flow field design is deemed as a critical approach to realize high power density operation for VFBs. However, conventional graphite bipolar plates still face mechanical limitations for practical stack uses, so there is an urgent need to explore alternative design strategies. Herein, a carbon paper based serpentine flow field (SFF) design is proposed for high power density VFB operation, which simultaneously reduces pressure drop and concentration polarization. Finite element analyses firstly compare different SFF designs and reveal effectively reduced pressure drop and promoted flow velocity across the electrode for 100 % SFF design. Subsequently, the 100 % SFF design presents significantly reduced concentration polarization at 200 mA cm-- 2 and 85 % SOC, which outperforms non-flow field and other SFF designs. Moreover, the full cell experiments demonstrate an enhanced voltage efficiency of 83.6 % at 200 mA cm-- 2 along with higher discharge capacity. By further coupling 100% SFF with Bi catalyst, the VFB cell finally proves to deliver a 79 % voltage efficiency at 300 mA cm-- 2 and stably operate over 1000 cycles, which highlights the great potential of proposed design strategy to realize high power density VFB operations.
关键词	Flow field design All-vanadium flow battery High performance Serpentine flow field Finite element analysis
资助者	Natural Science Foundation of Liaoning Province
DOI	10.1016/j.jpowsour.2024.235080
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	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:001278237700001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188549
专题	中国科学院金属研究所
通讯作者	Song, Yuxi; Tang, Ao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 3.Yancheng Inst Technol, Sch Mat Sci & Engn, Yancheng 224051, Peoples R China
推荐引用方式 GB/T 7714	Cong, Zhongxiao,Song, Yuanfang,Song, Yuxi,et al. A novel carbon paper based flow field design strategy toward high power density vanadium flow battery operation[J]. JOURNAL OF POWER SOURCES,2024,615:9.
APA	Cong, Zhongxiao,Song, Yuanfang,Song, Yuxi,Li, Ying,&Tang, Ao.(2024).A novel carbon paper based flow field design strategy toward high power density vanadium flow battery operation.JOURNAL OF POWER SOURCES,615,9.
MLA	Cong, Zhongxiao,et al."A novel carbon paper based flow field design strategy toward high power density vanadium flow battery operation".JOURNAL OF POWER SOURCES 615(2024):9.