Simultaneous regulation of solvation shell and ion migration in morpholine-crosslinked polyacrylamide hydrogel electrolytes for durable zinc metal batteries

doi:10.1016/j.jechem.2024.11.025

IMR OpenIR

	Simultaneous regulation of solvation shell and ion migration in morpholine-crosslinked polyacrylamide hydrogel electrolytes for durable zinc metal batteries
	Wei, Wei 1; Zhang, Minghui 2; Yan, Hui 1; Nan, Songbo 2; Cong, Zhongxiao 1; Dong, Yanfeng 2; Tang, Ao 1
通讯作者	Dong, Yanfeng(dongyanfeng@mail.neu.edu.cn) ; Tang, Ao(a.tang@imr.ac.cn)
	2025-03-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	102 页码:703-711
摘要	Aqueous zinc metal batteries (ZMBs) are vital to potable electronics and electric energy infrastructures because of their high energy conversion efficiency, high energy density, and environmental friendliness. However, rampant zinc dendrite growth and side reactions on the Zn anode seriously impede the practical application of ZMBs. In this work, morpholine-crosslinked polyacrylamide hydrogel electrolytes (ploy(acrylamide), 6m-PAM) are successfully developed to simultaneously regulate solvation shell to suppress side reactions and homogenize Zn2* ion migration for dendrite-free ZMBs. Notably, the 6m- PAM electrolyte exhibits excellent mechanical strength of 50.6 kPa, high Zn2* ion conductivity of 52 mS cm 1 at room temperature, and fast self-healing ability, providing stable and adaptable electrolyte-anode interfaces. Experimental and theoretical calculation results reveal that Zn2-N (morpholine) coordination interaction effectively reshapes the primary solvation shell of Zn2, suppressing the activity of free water and Zn dendrites. As a result, the 6m-PAM electrolyte endows symmetric zinc cells with a long-term cycling life of 2000 h at 7.5 mA cm 2 . Notably, Zn/Polyaniline (PANI) batteries equipped with 6m-PAM electrolytes also exhibit a high capacity of 124 mA h g 1 at 1 A g 1 and a long cycling life of 4000 times with a high-capacity retention of 98.3%. This functional crosslinked hydrogel electrolyte paves a new way to construct durable dendrite-free ZMBs. (c) 2024 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
关键词	Hydrogel electrolytes Zn metal anodes Poly(acrylamide) Solvation shell Zn2*ion migration
资助者	National Natural Science Foun-dation of China ; Natural Science Foundation of Liaoning Province
DOI	10.1016/j.jechem.2024.11.025
收录类别	SCI
语种	英语
资助项目	National Natural Science Foun-dation of China[22479022] ; Natural Science Foundation of Liaoning Province[2020-MS-021]
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:001383330700001
出版者	ELSEVIER
引用统计	被引频次：3[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/321006/181190
专题	中国科学院金属研究所
通讯作者	Dong, Yanfeng; Tang, Ao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wei, Wei,Zhang, Minghui,Yan, Hui,et al. Simultaneous regulation of solvation shell and ion migration in morpholine-crosslinked polyacrylamide hydrogel electrolytes for durable zinc metal batteries[J]. JOURNAL OF ENERGY CHEMISTRY,2025,102:703-711.
APA	Wei, Wei.,Zhang, Minghui.,Yan, Hui.,Nan, Songbo.,Cong, Zhongxiao.,...&Tang, Ao.(2025).Simultaneous regulation of solvation shell and ion migration in morpholine-crosslinked polyacrylamide hydrogel electrolytes for durable zinc metal batteries.JOURNAL OF ENERGY CHEMISTRY,102,703-711.
MLA	Wei, Wei,et al."Simultaneous regulation of solvation shell and ion migration in morpholine-crosslinked polyacrylamide hydrogel electrolytes for durable zinc metal batteries".JOURNAL OF ENERGY CHEMISTRY 102(2025):703-711.