Modulated bonding interaction in propanediol electrolytes toward stable aqueous zinc-ion batteries

doi:10.1007/s40843-021-1841-5

	Modulated bonding interaction in propanediol electrolytes toward stable aqueous zinc-ion batteries
	Wei, Tingting 2,3; Peng, Yuqi 2,3; Mo, Li'e 2,3; Chen, Shuanghong 2; Ghadari, Rahim 1; Li, Zhaoqian 2; Hu, Linhua 2
刊名	SCIENCE CHINA-MATERIALS
	2021-12-08
关键词	electrolyte Gutmann donor number low-temperature aqueous zinc-ion battery
ISSN号	2095-8226
DOI	10.1007/s40843-021-1841-5
通讯作者	Li, Zhaoqian(zqli@rntek.cas.cn) ; Hu, Linhua(lhhu@rntek.cas.cn)
英文摘要	Aqueous Zn-based batteries are promising energy storage technology due to their low cost and high safety. However, the solvation structure of electrolyte leads to dendrite growth, parasitic reactions, and poor low-temperature properties, limiting their practical application. Here, we report 1,2-propanediol (PG) electrolyte with a modulated solvation structure, which can suppress Zn dendrite growth and parasitic reactions. PG can break the interaction between H2O molecules and the interaction between H2O and Zn2+ due to the higher electron density of O and higher Gutmann donor number of PG than those of H2O, which increase the H-O covalent bond strength, decrease the water activity and freezing point, and change the solvation structure of Zn2+. As a result, the battery exhibits high cycling stability (Zn//Zn battery cycle over 1000 h), high reversibility (Coulombic efficiency of 98.9%), high capacity properties (specific capacity of 225 mA g(-1) h at 5 A g(-1), and capacity retention of 92.6% for 5000 cycles), and excellent anti-freezing properties (specific capacity of 190 mA h g(-1) at -20 degrees C over 500 cycles). This work provides a promising strategy for the development of high-performance aqueous zinc-ion batteries.
资助项目	National Key R&D Program of China[2017YFE0133800] ; CASHIPS Director's Fund[YZJJ201902] ; CASHIPS Director's Fund[YZJJZX202018] ; Anhui Provincial Natural Science Foundation[1908085QB52] ; Anhui Provincial Natural Science Foundation[2008085ME135]
WOS关键词	RECHARGEABLE BATTERIES ; ETHYLENE-GLYCOL ; ENERGY-STORAGE ; VANADATE ; WATER ; NANOBELTS ; HYDROGEN
WOS研究方向	Materials Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000729356000001
资助机构	National Key R&D Program of China ; CASHIPS Director's Fund ; Anhui Provincial Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126472]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Zhaoqian; Hu, Linhua
作者单位	1.Univ Tabriz, Dept Organ & Biochem, Computat Chem Lab, Fac Chem, Tabriz 5166616471, Iran 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat,CAS, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wei, Tingting,Peng, Yuqi,Mo, Li'e,et al. Modulated bonding interaction in propanediol electrolytes toward stable aqueous zinc-ion batteries[J]. SCIENCE CHINA-MATERIALS,2021.
APA	Wei, Tingting.,Peng, Yuqi.,Mo, Li'e.,Chen, Shuanghong.,Ghadari, Rahim.,...&Hu, Linhua.(2021).Modulated bonding interaction in propanediol electrolytes toward stable aqueous zinc-ion batteries.SCIENCE CHINA-MATERIALS.
MLA	Wei, Tingting,et al."Modulated bonding interaction in propanediol electrolytes toward stable aqueous zinc-ion batteries".SCIENCE CHINA-MATERIALS (2021).