Patent ID: 7790218
Filing Date: 2010-09-07
Classification: H01M,Y02E

Abstract:
1. A method for forming an electrode for a battery, said method comprising the steps of: preparing an electrode formed at its surface with a mixture layer containing an active material and forming a porous layer along the length of the electrode, the step of forming the porous layer comprising the substep of rotating a gravure roll oppositely to the direction of movement of the electrode while allowing the gravure roll to abut against the surface of the moving electrode, thereby applying a coating fluid serving as a precursor of the porous layer to the surface of the electrode, wherein in the substep of applying the coating fluid, part of the coating fluid applied to the surface of the electrode is continuously removed by allowing a scraper to abut against the surface of the electrode, and a width of a part of the scraper abutting against the surface of the electrode is adjusted according to variations in the width of the porous layer left after the removal of the part of the coating fluid.