chemical cross-linking;
cross-linking agent;
gel polymer electrolyte;
lithium-ion polymer cell;
microporous membrane;
star-shaped siloxane acrylate;
D O I:
10.1016/j.jpowsour.2007.07.050
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The chemically cross-linked gel polymer electrolytes supported by the microporous polyethylene membrane were prepared for application in lithium-ion polymer cells. The chemical cross-linking by star-shaped siloxane acrylate allowed to encapsulate an electrolyte solution in the porous membrane and also promote strong interfacial adhesion between the electrodes and the membrane. Lithium-ion polymer cells composed of a mesocarbon microbead anode and a lithium-cobalt oxide cathode were assembled by using in situ chemical cross-linking method, and their charge/discharge cycling performances were evaluated. Effect of the cross-linking agent content on cycling performances of the cells has been investigated. (c) 2007 Elsevier B.V. All rights reserved.