Patent ID: 8357260
Filing Date: 2013-01-22
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A process of producing a battery, which comprises obtaining a partially crosslinked adhesive by reacting a reactive polymer with a polyfunctional compound wherein the reactive polymer has a functional group in the molecule and capable of being crosslinked upon reaction with the polyfunctional compound and the polyfunctional compound having reactivity with the functional group; applying the partially crosslinked adhesive to a porous film substrate to obtain a partially crosslinked adhesive-supported porous film; laminating and contact bonding an electrode on the thus obtained partially crosslinked adhesive-supported porous film to form an electrode/porous film laminate; and after charging the electrode/porous film laminate into a battery container, pouring an electrolyte liquid containing the polyfunctional compound into the battery container and heating it to react the unreacted functional group in the reactive polymer with the polyfunctional compound, thereby further crosslinking the partially crosslinked adhesive supported on the porous film and bonding the electrode to the porous film to form an electrode/porous film junction body and obtain a battery having as a separator the porous film in the electrode/porous film junction body.