An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery

doi:10.1016/j.jpowsour.2019.227686

IMR OpenIR

	An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery
	Xu, Zeyu 1,2; Xiao, Wei 1; Zhang, Kaiyue 1,2; Zhang, Denghua 1,2; Wei, Hao 1; Zhang, Xihao 1,2; Zhang, Zhongyu 1,3; Pu, Nianwen 1,3; Liu, Jianguo 1; Yan, Chuanwei 1
通讯作者	Liu, Jianguo(jgliu@imr.ac.cn)
	2020-02-29
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	450 页码:10
摘要	Improving battery performance and cycle life is an effective way to increase the share of vanadium redox flow batteries (VRFBs) in the energy storage market. Here, an advanced integrated electrode with micron- and nanoscale structures is fabricated through multi-step electrospinning and post-functionalization processes. For micron-scale structure, the reaction region and the electron transport region are constructed to optimize activation areas and electron conduction process. For nano-scale structure, the catalytic layer with oxygen-rich gradient nanopores and the conductive layer with electron transport channels are generated to enhance electrocatalytic and conductive performances without sacrificing mass transport. The VRFB with the as-prepared electrodes achieves an outstanding performance with 80.28% energy efficiency at 250 mA cm(-2) and is stably cycled for more than 1000 cycles. Besides, it delivers a high peak power density of 702.98 mW cm(-2), which is 69.45% higher than that of the battery with conventional graphite felts. More importantly, the rationality of structure design is verified, and different application ways of the as-prepared electrodes are compared. This work provides an inspiration in structural design for the development of high performance electrodes for VRFBs.
关键词	Vanadium redox flow battery Multi-scale integrated structures Polarization Electrocatalytic activity Conductivity Hydrophilicity
资助者	National Natural Science Foundation of China ; Shenyang Key R&D and Technology Transfer Program ; Natural Science Foundation of Liaoning ; Shenyang Science and Technology Project
DOI	10.1016/j.jpowsour.2019.227686
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21573257] ; National Natural Science Foundation of China[21676282] ; Shenyang Key R&D and Technology Transfer Program[Z17-7-026] ; Natural Science Foundation of Liaoning[20180510039] ; Shenyang Science and Technology Project[18013051]
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:000517663800056
出版者	ELSEVIER
引用统计	被引频次：32[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/321006/137453
专题	中国科学院金属研究所
通讯作者	Liu, Jianguo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Sichuan Xingming Energy & Environm Protect Techno, Chengdu 610106, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zeyu,Xiao, Wei,Zhang, Kaiyue,et al. An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery[J]. JOURNAL OF POWER SOURCES,2020,450:10.
APA	Xu, Zeyu.,Xiao, Wei.,Zhang, Kaiyue.,Zhang, Denghua.,Wei, Hao.,...&Yan, Chuanwei.(2020).An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery.JOURNAL OF POWER SOURCES,450,10.
MLA	Xu, Zeyu,et al."An advanced integrated electrode with micron- and nano-scale structures for vanadium redox flow battery".JOURNAL OF POWER SOURCES 450(2020):10.