Patent ID: 8613841
Filing Date: 2013-12-24
Classification: C25B,H01M,Y02E

Abstract:
1. Electrochemical cells modules made up of couples of catalytic multilayer porous electrodes forming the anodes and the cathodes and delimitating external gaseous areas and internal areas containing the electrolyte and connected by an external electric circuit characterized in that the cell module comprises: a circulating electrolyte, pressure modulators generating in use two pressure cycles independently synchronized but of opposite phase acting at the inlet and at the outlet of the circulating electrolyte, multilayer porous electrodes weeping on the gas side, and external heat exchange for the circulating electrolyte fluctuating into porous electrode and flowing into the electrochemical cell wherein the multilayer porous electrodes are conductive and hydrophobic on the gas side, the conductive and catalytic middle layers are hydrophobic and hydrophilic, and a non-conductive, non-catalytic, hydrophilic, layer is on the electrolyte side, wherein the pressure modulators are linked with two tanks containing in use the electrolyte at two different pressures and each connected respectively at the inlet and at the outlet of the cell by a valve; wherein the opening section of the outlet valve S and of the inlet valve s are such that S>s, and wherein the two pressure cycles are applied at a frequency the period of which approaches the reaction times of the electrochemical reactions.