A METHOD FOR MANUFACTURING A COMPOSITE MATERIAL OF A SOLID-ELECTROLYTE MEMBRANE OF A MEDIUM-TEMPERATURE FUEL CELL Russian patent published in 2022 - IPC C25D13/02 

FIELD: composite materials.

SUBSTANCE: invention relates to the technology of manufacturing a composite material of a solid-electrolyte membrane, which can be used in medium-temperature solid-oxide fuel cells. The method includes sequential electrophoretic deposition of a layer of an electrolyte material based on barium cerate doped with samarium (BCS) and a layer of an electrolyte material based on cerium dioxide doped with samarium (SDC), electrophoretic deposition is carried out on a porous cermet substrate of NiO-BCS composition followed by sintering of the obtained layers, while electrophoretic deposition of the layer is first carried out electrolyte from a suspension of barium cerate powder doped with samarium, with a concentration of 10 g/l at a voltage of 200 V for 40-60 s to an unsealed layer thickness of 13 to 20 microns, electrophoretic deposition of an electrolyte layer from a suspension of cerium dioxide powder doped with samarium, with a concentration of 10 g/l at a voltage of 200 V, for 70-110 s to the thickness of the unsealed layer from 13 to 20 microns, the resulting layers are dried together at room temperature for 24 hours and sintered at a temperature of 1450 ^oC for 5 hours. EFFECT: The present invention enables to produce a composite material of an electrolyte membrane having the properties of an oxygen-ion solid electrolyte that increases the open circuit voltage of the solid-oxide fuel cell.

EFFECT: invention enables to produce composite material of a solid-electrolyte membrane.

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