TUBULAR SOFC WITH CATHODE CURRENT COLLECTOR AND METHOD FOR FORMING CATHODE FUEL COLLECTOR Russian patent published in 2021 - IPC H01M8/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, namely, to high-temperature solid oxide fuel cells (SOFCs) of a tubular structure with an anode supporting electrode, in particular to microtubular SOFCs, and is intended to create single tubular SOFCs with an efficient cathode current collector for subsequent switching of fuel cells in a battery. The cathode current collector is made of a material based on metal powder and/or powder of metal oxides and/or intermetallic compounds, in the form of at least one strip deposited on the surface of the outer side of the cathode electrode, or on the inner side of the cathode electrode facing the electrolyte, wherein, the current collector is inseparably connected to the surface on which it is applied, and has a porous structure with a volumetric porosity of 10-70%. A method for forming the cathode collector of tubular SOFC is proposed, which includes the preparation of a composition based on metal powder and/or powder of metal oxides and/or intermetallic compounds with a particle size of 0.5-50 mcm, which is applied to the surface of the cathode electrode in the form of strips or to the surface adjacent to layer facing the cathode electrode, after which annealing is carried out at the sintering temperature of the cathode electrode.

EFFECT: invention reduces electrical losses, increases the specific power of single tubular SOFCs.

10 cl, 4 dwg