电源技术Issue(4)：698-701,4.
单离子固态聚合物锂离子电解质膜的研究
Study on single-ion solid-state polymer lithium-ion electrolyte membranes
崔尧 1尹雷 1余晴春 1蒋峰景1
作者信息
- 1. 上海交通大学机械与动力工程学院，上海200240
- 折叠
摘要
Abstract
Novel single-ion solid-state polymer lithium-ion electrolyte membranes were prepared by blending lithiated perfluorinated sulfonic with polyethylene glycol dimetyl ether [PEGDE, CH3O(CH2CH2O) CH3, =3-8] in various molar ratios of ethylene oxide unite to Li+ (EO/Li+). The fundamental properties of thermal stability, mechanical strength, micro-morphology and electrochemical performance were studied. The TGA test shows that the polymer electrolyte membranes are thermal y stable up to 250℃and the maximum tensile strength is up to 4.25 MPa. At a EO/Li+ratio of 20, high ionic conductivities of 4.26×10-4 and 2.16×10-5 S/cm are obtained at 100 and 40℃,respectively. The solid polymer menbrane exhibits single lithium-ion conductor behavior with Li+>0.9. It’s hopeful that the prepared electrolyte membranes would be used in mid and high temperature lithium-ion battery.关键词
锂离子电池/固态聚合物电解质/单离子导体/锂离子电导率/离子迁移数Key words
lithium-ion battery/solid-state polymer electrolyte/single-ion conductor/lithium-ion conductivity/ionic transference number分类
信息技术与安全科学引用本文复制引用
崔尧,尹雷,余晴春,蒋峰景..单离子固态聚合物锂离子电解质膜的研究[J].电源技术,2015,(4):698-701,4.
