Evaluation of the influence of clamping force in electrochemical performance and reliability of vanadium redox flow battery

doi:10.1016/j.jpowsour.2019.05.061

IMR OpenIR

	Evaluation of the influence of clamping force in electrochemical performance and reliability of vanadium redox flow battery
	Xiong, Jing 1,2; Song, Yuxi 1,3; Wang, Shaoliang 1,2; Li, Xiangrong 1; Liu, Jianguo 1,2; Yan, Chuanwei 1,2; Tang, Ao 1,2
通讯作者	Tang, Ao(a.tang@imr.ac.cn)
	2019-08-15
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	431 页码:170-181
摘要	The mechanical condition in stack assembly can impose a significant influence in performance and reliability of the vanadium flow battery. In order to analyze the influence and optimize the overall performance, the effect of clamping force on electrode morphology, mass transfer and polarizations is investigated in this study by measurement of contact resistance and development of a coupled mechanical-electrochemical model. The experimental results indicate that the contact resistance and ohmic polarization decreases with an increase in clamping force, while the simulation results demonstrate that the clamping force can significantly impact on the electrode morphology and mass transport phenomena, and subsequently affect the distributions of activation and concentration polarizations. Despite the concentration polarization presenting to rise at a large clamping force, the overall polarization is proved to be decreased demonstrating that an increased clamping force can offer high voltage efficiency and power density. By further considering the mechanical failure probability and trading off the cell performance and reliability, an optimal clamping force is successfully determined. Such an analysis focusing on assembling condition is vital for understanding the effect of mechanical condition on the battery performance, while also highlighting the significance of rational mechanical design and assembly in flow battery manufacture.
关键词	Vanadium redox flow battery Clamping force Electrode morphology Mass transport Contact resistance Polarizations
资助者	National Natural Science Foundation of China ; Institute of Metal Research, Chinese Academy of Sciences
DOI	10.1016/j.jpowsour.2019.05.061
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21706266] ; National Natural Science Foundation of China[21805290] ; Institute of Metal Research, Chinese Academy of Sciences
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:000474500700020
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：21[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/321006/134481
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, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China 3.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Jing,Song, Yuxi,Wang, Shaoliang,et al. Evaluation of the influence of clamping force in electrochemical performance and reliability of vanadium redox flow battery[J]. JOURNAL OF POWER SOURCES,2019,431:170-181.
APA	Xiong, Jing.,Song, Yuxi.,Wang, Shaoliang.,Li, Xiangrong.,Liu, Jianguo.,...&Tang, Ao.(2019).Evaluation of the influence of clamping force in electrochemical performance and reliability of vanadium redox flow battery.JOURNAL OF POWER SOURCES,431,170-181.
MLA	Xiong, Jing,et al."Evaluation of the influence of clamping force in electrochemical performance and reliability of vanadium redox flow battery".JOURNAL OF POWER SOURCES 431(2019):170-181.