US Patent No. 9,962,918

PRODUCTION METHOD FOR A SUPPORT TYPE COATING MEMBRANE USING TAPE CASTING


Patent No. 9,962,918
Issue Date May 08, 2018
Title Production Method For A Support Type Coating Membrane Using Tape Casting
Inventorship Young-Sung Yoo, Daejeon (KR)
Mi-Hwa Choi, Daejeon (KR)
Tae-Hee Lee, Daejeon (KR)
Assignee KOREA ELECTRIC POWER CORPORATION, Seoul (KR)

Claim of US Patent No. 9,962,918

1. A method of manufacturing a support type coating membrane, comprising the steps of:forming a pre heat-treated support;
forming a green sheet on a release film for a coating membrane;
attaching the green sheet onto the pre heat-treated support directly to form a laminate including the release film, green sheet and support;
removing the release film from the laminate to form a combination of the support and green sheet; and
co-sintering the combination,
wherein the pre heat-treated support is an anode or cathode,
wherein the coating membrane is an electrolyte layer or separation membrane, and
wherein, in the step of forming the green sheet, the green sheet is formed by tape-casting a binder-containing ceramic slurry on the release film,
wherein, in the step of forming the support, the support is formed by molding and heat-treating binder-containing powder for support, and is a pre-sintered porous support having a porosity of 5 to 70%,
wherein, in the step of forming the combination of the support and green sheet by removing the release film, the green sheet is attached onto the support using a pressurization-type or depressurization-type attaching apparatus, and then the release film is removed therefrom,
wherein the green sheet is attached to the support by generating a pressure difference between both sides of the support using the pressurization-type or depressurization-type attaching apparatus, and
wherein the release film is separated by generating the pressure difference between both sides of the support using the pressurization-type or depressurization-type attaching apparatus.