Patent ID: 6833217
Filing Date: 2004-12-21
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A method of making an electrochemical cell, comprisingconstructing an electrochemical cell including a housing having an interior surface and, within the housing, (1) a conductive layer of a carbonaceous material in contact with the interior surface of the housing; (2) a cathode in contact with the conductive layer and comprising manganese dioxide and at most 10% by weight graphite particles having an average particle size of less than 20 microns that were prepared without using an industrial or laboratory graphitization process and without any industrial or laboratory expansion process; (3) an anode inside the cathode comprising zinc particles and a gassing inhibitor selected from the group consisting of bismuth, tin, and indium; (4) a separator disposed between, and in contact with, the cathode and the anode; (5) an alkaline electrolytic solution; and (6) a current collector centrally located in the cell in contact with the anode.