Ether-Free Poly(p-terphenyl-co-acetylpyridine) Membranes with Different Thicknesses for Vanadium Redox Flow Batteries

doi:10.1021/acsaem.2c02216

CORC > 金属研究所 > 中国科学院金属研究所

	Ether-Free Poly(p-terphenyl-co-acetylpyridine) Membranes with Different Thicknesses for Vanadium Redox Flow Batteries
	Mu, Tong 2; Tang, Weiqin 2; Jin, Yaping 2; Che, Xuefu 2; Liu, Jianguo 1; Yang, Jingshuai 2
刊名	ACS APPLIED ENERGY MATERIALS
	2022-08-17
页码	10
关键词	poly(p-terphenyl-co-acetylpyridine) polymer membrane thickness chemical stability vanadium redox flow battery
ISSN号	2574-0962
DOI	10.1021/acsaem.2c02216
通讯作者	Liu, Jianguo(jgliu@imr.ac.cn) ; Yang, Jingshuai(yjs@mail.neu.edu.cn)
英文摘要	The preparation of thin polymer membranes with excellent ion selectivity, good chemical stability, and high battery performance is a research hotspot for vanadium redox flow batteries (VRFBs). Herein, aryl-ether free poly(p-terphenyl-co-acetylpyridine) (termed as PTAP) was synthesized through a facile one-pot Friedel-Crafts polyhydroxyalkylation reaction. Due to the presence of a large amount of pyridine groups, the PTAP membrane exhibits good sulfonic acid absorption capability and low area resistance. Meanwhile the PTAP membrane displays ultralow vanadium ion permeability and excellent chemical stability simultaneously. The effect of thickness of PTAP membranes on the properties has been investigated systematically. As benchmarks, polybenzimidazole (PBI) membranes with different thicknesses of 54 and 118 mu m, Nafion 115 and Nafion 212 have been studied accordingly. Consequently, the thin PTAP-55 mu m membrane exhibits the lowest vanadium ion permeability (4.6 x 10(-8) cm(2) min(-1)) among all the membranes. Meanwhile, it also achieves a low area resistance of 0.45 Omega cm(2), high tensile strength of 34.9 MPa, and good chemical stability toward VO2+ ions. The VRFB based on PTAP-55 mu m shows a high energy efficiency of 85.6% at 80 mA cm(-2) and maintains high Coulombic efficiency (similar to 99.4%) and stable energy efficiency (similar to 81.5%) during the long-term operation at 100 mA cm(-2).
资助项目	National Natural Science Foundation of China[51603031] ; Fundamental Research Funds for the Central Universities of China[N2005026] ; Natural Science Foundation of Liaoning Province[2020-MS-087]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000844331200001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174506]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Jianguo; Yang, Jingshuai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Mu, Tong,Tang, Weiqin,Jin, Yaping,et al. Ether-Free Poly(p-terphenyl-co-acetylpyridine) Membranes with Different Thicknesses for Vanadium Redox Flow Batteries[J]. ACS APPLIED ENERGY MATERIALS,2022:10.
APA	Mu, Tong,Tang, Weiqin,Jin, Yaping,Che, Xuefu,Liu, Jianguo,&Yang, Jingshuai.(2022).Ether-Free Poly(p-terphenyl-co-acetylpyridine) Membranes with Different Thicknesses for Vanadium Redox Flow Batteries.ACS APPLIED ENERGY MATERIALS,10.
MLA	Mu, Tong,et al."Ether-Free Poly(p-terphenyl-co-acetylpyridine) Membranes with Different Thicknesses for Vanadium Redox Flow Batteries".ACS APPLIED ENERGY MATERIALS (2022):10.