Patent ID: 6183902
Filing Date: 2001-02-06
Classification: H01M,Y02E,Y02P

Abstract:
A miniature galvanic cell comprising a first positive electrode a second negative electrode; a separator between said first electrode and said second electrode; an electrolyte; a two-part conductive housing containing said first electrode, said second electrode, said separator and said electrolyte, the first part of said housing being a can electrically connected to said first electrode and having a wall and an edge defining an opening, and the second part of said housing being a cup electrically connected to said second electrode and having an upstanding wall with an outer surface and an edge end defining an opening and having an inward beaded area at the vicinity of the open end of the cup, and an insulating gasket comprising a base member and at least one upstanding wall; wherein the edge of the can's wall is disposed against said gasket; one upstanding wall of said gasket is disposed between the wall of the can and the wall of the cup; the upstanding wall of the cup is radially outward of the upstanding wall of the gasket and the wall of the can; and the base member of said gasket is seated on the beaded area of the cup producing a sealed miniature galvanic cell.