Patent ID: 8586244
Filing Date: 2013-11-19
Classification: H01M,Y02E

Abstract:
1. A primary alkaline electrochemical cell, comprising: a container; an electrode assembly disposed within the container and comprising a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, solid zinc oxide and a surfactant adsorbed on a surface of the solid zinc oxide, wherein the surfactant comprises a water soluble block copolymer, and wherein the block copolymer has at least one anionic functional group and at least one nonionic functional group; and wherein the zinc is present in an amount from 64 to 68 weight percent based on the total weight of the negative electrode, wherein the solid zinc oxide is present in an amount from 1.5 to 5.0 weight percent based on the total weight of the negative electrode, wherein the solid zinc oxide has a BET surface area greater than 20 m