| 초록 |
Rechargeable lithium polymer batteries have been considered to be one of the most attractive next-generation power sources. The use of a polymer electrolyte enables fabrication of safe batteries and permits the development of flexible batteries. It is well known that the addition of polar solvents could increase the ionic conductivity of those materials. Such gel polymer electrolytes encapsulate high amount of an electrolyte solution, and their ionic conductivities usually exceed 10-3 S cm-1 at 25℃. However, their mechanical strength is not good. In order to overcome this problem, the microporous membrane has been employed as a dimensional support to enhance the mechanical strength of the gel polymer electrolytes. The chemical cross-linking was proved to promote strong interfacial adhesion between the electrodes and the membrane. By using in-situ chemically cross-linked gel polymer electrolytes, we assembled lithium polymer batteries and the cycling performance was evaluated. |
