文献类型：期刊文献

英文题名：Physicochemical and Electrochemical Properties of ZnCl2/Propan-1,3-diol Deep Eutectic Solvent for Zinc-Ion Battery Electrolytes

作者：Li, Jing[1];Huang, Yifan[2];Sun, Yaping[2];Lian, Cheng[1,2];Su, Haiping[2];Li, Jingkun[2];Liu, Honglai[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：71

期号：3

起止页码：1172

外文期刊名：JOURNAL OF CHEMICAL AND ENGINEERING DATA

收录：;EI(收录号：20261120260093);WOS:【SCI-EXPANDED(收录号:WOS:001688877400001)】；

基金：This work was financially supported by the National Key R&D Program of China (2022YFA1503501), the National Natural Science Foundation of China (No. 22278127, 52321002, 22078088, 22102114), and the Fundamental Research Funds for the Central Universities (No. 2022ZFJH004).

语种：英文

外文关键词：Chlorine compounds - Eutectics - Hydrogen bonds - Ions - Physicochemical properties - Solvents - Zinc - Zinc chloride

摘要：As an environmentally benign solvent system, deep eutectic solvents (DESs) are of great significance in the field of sustainable development. This work pioneers a novel application of ZnCl2/propan-1,3-diol (1,3-PDO) DES as an environmentally friendly, low-cost, and safe electrolyte for zinc-ion batteries. The viscosity (eta), conductivity (kappa), and surface tension (gamma) of DESs, and their correlations with ZnCl2 concentration, temperature, and hydrogen bonding strength are investigated. Furthermore, DES with a proper ZnCl2:1,3-PDO ratio exhibits a broadened operating temperature range and enhanced cycle life, owing to its well-balanced eta, kappa, and gamma, as well as excellent thermal and chemical stability. The Zn||Zn symmetric cell with the ZnCl2/1,3-PDO (1:10) electrolyte achieves a cycle life of over 5000 h, demonstrating outstanding practical potential. This study provides important theoretical and data support for the application of ZnCl2/1,3-PDO DES as an electrolyte in zinc-ion batteries.