Bonding interaction regulation in hydrogel electrolyte enable dendrite-free aqueous zinc-ion batteries from-20 to 60 degrees C

doi:10.1016/j.cej.2022.134646

	Bonding interaction regulation in hydrogel electrolyte enable dendrite-free aqueous zinc-ion batteries from-20 to 60 degrees C
	Wei, Tingting 1,2; Ren, Yingke 3; Li, Zhaoqian 1; Zhang, Xianxi 4; Ji, Denghui 5; Hu, Linhua 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2022-04-15
卷号	434
关键词	Aqueous zinc-ion batteries Hydrogel electrolyte Dendrite-free Anti-freezing Thermostability
ISSN号	1385-8947
DOI	10.1016/j.cej.2022.134646
通讯作者	Ji, Denghui(jidenghui2007@163.com) ; Hu, Linhua(lhhu@rntek.cas.cn)
英文摘要	Aqueous zinc-ion batteries are promising energy storage devices due to their safety and abundant resources. However, the leakage, dendrites, and poor performance at high and low temperatures seriously limit the practical application. Hydrogel electrolyte with plenty of water and high flexibility is an ideal candidate for the liquid electrolyte. Here, we present a functional gel electrolyte composed of polyacrylamide (PAM), ZnSO4 (ZS), glycerol (GL), and acetonitrile (AN) with excellent mechanical properties, high ionic conductivity, and modulated bonding interaction. FTIR and DFT calculations show that the water activity is extremely decreased and the bonding interaction in this system is adjusted owing to the affinity between H2O/Zn2+ and oxygen-containing groups in the hydrogel, leading to the uniform Zn deposition, high stability, and wide operating temperature range (-20 similar to 60 degrees C). The batteries with gel electrolyte exhibit high cycling stability (Zn//Zn battery steadily cycles over 3000 h), high reversibility (Coulombic efficiency reaches 99.5%), and enhanced electrochemical performance (185 mAh.g(-1) at 5 A.g(- 1) over 10,000 cycles). Even at -20 degrees C and 60 degrees C, the batteries show excellent cycling stability (Zn//Zn battery cycles over 500 h) and high capacity performance.
资助项目	CASHIPS Director's Fund[YZJJ201902] ; CASHIPS Director's Fund[YZJJZX202018] ; Anhui Provincial Natural Science Foundation[1908085QB52] ; Shijiazhuang University Doctoral Scientific Research Startup Fund Project[20BS019] ; Shijiazhuang higher education scientific research project, China[20191023] ; Teaching reform Research and Practice program, China[JGXM-202154G]
WOS关键词	STABILITY
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000773514100002
资助机构	CASHIPS Director's Fund ; Anhui Provincial Natural Science Foundation ; Shijiazhuang University Doctoral Scientific Research Startup Fund Project ; Shijiazhuang higher education scientific research project, China ; Teaching reform Research and Practice program, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128705]
专题	中国科学院合肥物质科学研究院
通讯作者	Ji, Denghui; Hu, Linhua
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Peoples R China 3.Hebei Univ Sci & Technol, Coll Sci, 26 Yuxiang Rd, Shijiazhuang 050018, Hebei, Peoples R China 4.Liaocheng Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Storage & Nove, Shandong Prov Key Lab, Liaocheng 252000, Shandong, Peoples R China 5.Shijiazhuang Univ, Coll Phys Mech & Elect Coll, Shijiazhuang 050035, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Wei, Tingting,Ren, Yingke,Li, Zhaoqian,et al. Bonding interaction regulation in hydrogel electrolyte enable dendrite-free aqueous zinc-ion batteries from-20 to 60 degrees C[J]. CHEMICAL ENGINEERING JOURNAL,2022,434.
APA	Wei, Tingting,Ren, Yingke,Li, Zhaoqian,Zhang, Xianxi,Ji, Denghui,&Hu, Linhua.(2022).Bonding interaction regulation in hydrogel electrolyte enable dendrite-free aqueous zinc-ion batteries from-20 to 60 degrees C.CHEMICAL ENGINEERING JOURNAL,434.
MLA	Wei, Tingting,et al."Bonding interaction regulation in hydrogel electrolyte enable dendrite-free aqueous zinc-ion batteries from-20 to 60 degrees C".CHEMICAL ENGINEERING JOURNAL 434(2022).