电源技术2025，Vol.49Issue(5)：925-932,8.DOI:10.3969/j.issn.1002-087X.2025.05.005
一种新型有机聚硫固态聚合物电解质
A novel organic polysulfide solid-state polymer electrolyte
摘要
Abstract
In this study,organic sulfide lipoic acid(α-ALA)and polyethylene glycol diacrylate(PEGDA)monomers were used as raw materials to prepare a chemically stable three-dimensional cross-linked polymer P(Ax-Py)by reverse vulcanization reaction under high temperature(without ini-tiator)conditions.Then it was blended with polyethylene oxide(PEO)to obtain a solid-state electro-lyte membrane P(Ax-Py)-PEO.P(Ax-Py)-PEO can assist in constructing an SEI layer that enables stable cycling of the battery.The conductivity of P(A3-P3)-PEO electrolyte at 60℃reaches 1.85×10-3 S/cm with an electrochemical window of up to 4.5 V.When the current density is 0.1 mA/cm2,the Li|P(A3-P3)-PEO|Li cell can stably cycle for more than 1600 hours,and the Li|P(A3-P3)-PEO|SPAN cell has a discharge-specific capacity of 719 mAh/g and a coulombic efficiency of up to 99%.The results indi-cate that the polymer electrolyte prepared in this study has great potential for improving ion trans-port and battery cycling stability.关键词
固态电解质/有机硫化物/交联聚合物/聚合物电解质Key words
solid-state electrolytes/organic sulfide/cross-linked polymer/polymer electrolyte分类
动力与电气工程引用本文复制引用
袁媛,蔡志鹏,宋柯蒙,李宁,曾芳磊..一种新型有机聚硫固态聚合物电解质[J].电源技术,2025,49(5):925-932,8.基金项目
中国博士后科学基金项目(2022M721374) （2022M721374）
国家自然科学基金(21805016) （21805016）
江苏省研究生科研与实践创新计划项目(SJCX24_1583,KYCX24_3164) （SJCX24_1583,KYCX24_3164）
