METHOD OF FORMING BUTTON-TYPE BATTERIES AND A BUTTON-TYPE BATTERY INSULATING AND SEALING GASKET

摘要

A method for forming a button-type battery includes the steps of: a) arranging the first and second terminal housing members in a parallel position facing each other, supplying the anode, the cathode, and the electrolyte to the first and second terminal housing member center portions; b) providing a peripheral insulating gasket to the first and second terminal housing members, the insulating sealing gasket being annular and radially outward beyond the peripheral surround of the first and second terminal housing members Has a prolonged radial dimension; c) pushing the first terminal / housing member container wall against the first gasket surface and simultaneously applying a peripheral portion of the second terminal housing member against the second gasket surface to force at least one of the adjacent first and second terminal housing member container walls Bending the insulating gasket around the container wall and continuing the movement to apply force to be received in the first terminal housing member; d) squeezing the container wall after the moving step and sealing the gasket against the periphery of the second terminal housing member to form the enclosed housing. Another method comprises i) providing a separate preformed peripheral insulating sealing gasket annularly, ii) placing a separate preformed sealing gasket in the first terminal housing member and then compressing and sealing. A novel gasket construction is disclosed.