Patent ID: 8563150
Filing Date: 2013-10-22
Classification: B01J,H01M,Y02E,Y02P

Abstract:
1. Alkaline battery having: a zinc anode, a cathode, a separator and an alkaline electrolyte solution, further comprising a device for catalytic recombination of the gases formed during the charging of the system, said device being composed of a catalytic mass arranged in contact with a cross-linked cellular metal foam serving as catalyst support and heat dissipating structure, said catalytic mass being composed of a mixture of carbon black including a platinum group metal and a hydrophobic binder, the whole having been subjected to a heat treatment so as to cause the hydrophobic binder of said catalytic mass to be sintered; said device for catalytic recombination being connected to one of the terminals or to a metal part of the cover of the battery which is in contact with external air, without there being any contact between said catalytic mass and the separators, in order to avoid any risk of polarization of the catalytic structure through an ionic continuity.