Patent ID: 7510581
Filing Date: 2009-03-31
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method for removing plasticizer during a manufacturing process of a polymeric secondary battery, the polymeric secondary battery being made from a unitary cell containing plasticizer, the method comprising the steps of: (a) placing the unitary cell in a chamber; (b) introducing a gaseous solvent into the chamber and contacting the unitary cell with the gaseous solvent so that the plasticizer dissolves in the gaseous solvent and is removed from the unitary cell thus, during which the gaseous solvent condenses into liquid; (c) collecting a mixture of the solvent and the plasticizer; and (d) distilling the mixture to separate the solvent and the plasticizer, which are recyclable after the separation.