Patent ID: 9159987
Filing Date: 2015-10-13
Classification: H01M,Y02E,Y02P

Abstract:
1. A method for manufacturing a battery electrode with a configuration in which a mixed material layer containing an active material and a binder is retained on a current collector, the method comprising: a first step of depositing a first layer of a binder solution in a liquid phase, comprising a binder and a liquid medium, on the current collector, wherein the binder solution is adjusted so that a contact angle of the binder solution with a surface of the current collector is 73° or less; a second step of depositing a second layer of a mixed material paste comprising the active material and a liquid medium on the first layer of the binder solution, thereby forming a liquid phase bilayer, wherein the applied width of the first layer is narrower than the applied width of the second layer and the second layer is deposited so that the applied edge of the second layer protrudes 5 mm or more outwardly beyond the applied edge of the first layer; and a third step of drying the liquid phase bilayer.