Patent ID: 7811695
Filing Date: 2010-10-12
Classification: H01M,Y02E,Y02P

Abstract:
1. Composite block of fuel cells, comprising a plurality of fuel cell units, said fuel cell units following one another along a stacking direction and each comprising: a cathode-anode-electrolyte unit, a contact plate in electrically conductive contact with the cathode-anode-electrolyte unit, and a fluid guiding element comprising a one-piece shaped sheet metal part and connected to the contact plate in a fluid-tight manner, wherein said one-piece shaped sheet metal part is provided with a fluid supply channel opening and a fluid discharge channel opening in fluid guiding areas of said one-piece shaped sheet metal part to which the electrolyte of the cathode-anode-electrolyte unit does not extend, said fluid supply channel opening forming a part of a fluid supply channel which extends through the fuel cell unit parallel to a stacking direction and which does not pass through the electrolyte of the cathode-anode-electrolyte unit and said fluid discharge channel opening forming a part of a fluid discharge channel which extends through the fuel cell unit parallel to a stacking direction and which does not pass through the electrolyte of the cathode-anode-electrolyte unit, wherein the fluid supply channel opening and the fluid discharge channel opening enable a fluid to flow from said fluid supply channel opening through said fuel cell unit to said fluid discharge channel opening, and wherein said one-piece shaped sheet metal part is connected to the contact plate by an electrically conductive metallic connection.