Patent ID: 8147565
Filing Date: 2012-04-03
Classification: H01M,Y02E,Y10T

Abstract:
1. A method for manufacturing an electrode plate for a battery comprising a step of applying a paste comprising an active material onto at least one surface of a current collector in a lengthy belt shape by causing said paste to pass through a die including a paste storing part and a subsequent flat discharge flow path, wherein said die comprises: an upper mold having a flat bottom surface and a lower mold having a flat top surface that are opposed to each other to determine a gap of said discharge flow path, and a pair of plate members sandwiched between said upper mold and said lower mold to determine said discharge flow path in a width direction, and wherein (i) when viscosity of said paste is 70,000 mPa·sec or more, said paste is applied with the die having the plate members whose configuration is adjusted so that a width of said discharge flow path is gradually increased from said paste storing part toward said opening, and (ii) when viscosity of said paste is 40,000 mPa·sec or less, said paste is applied with the die having the plate members whose configuration is adjusted so that a width of said discharge flow path is decreased gradually from said paste storing part toward said opening and said width is increased before said opening.