Patent ID: 8062386
Filing Date: 2011-11-22
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method of manufacturing an electrochemical cell comprising the steps: (a) providing a sheet comprising a steel layer as a substrate; (b) forming a negative electrode casing from the substrate; (c) electroplating a layer comprising bright tin and having an average thickness from 1 to 10 micrometers onto the substrate, using a rack plating process with variable contact holding of the negative electrode casing and an electroplating current density from 538 to 2691 amps per square meter; (d) depositing a negative electrode material comprising zinc and an aqueous alkaline electrolyte in a concave portion of the negative electrode casing such that the negative electrode material is in contact with the tin layer on the negative electrode casing; and (e) combining the negative electrode casing and the negative electrode material with a positive electrode and a positive electrode casing to form a sealed cell.