METHOD OF PRODUCING INK FOR MAKING THIN-FILM SOLID ELECTROLYTE BY DIGITAL INKJET 3D PRINTING Russian patent published in 2025 - IPC B22F9/04 H01M8/1253 

FIELD: chemistry.

SUBSTANCE: invention relates to solid oxide fuel cells (SOFC) and specifically to a method of producing ink for producing gas-tight thin-layer electrolytes by digital jet 3D printing. A distinctive feature of the method is that the oxide powder used is powdered zirconium oxide doped with yttrium of the composition Zr_0.9Y_0.1O₂ or composition Zr_0.92Y_0.08O₂, solvent used is dipropylene glycol monobutyl ether, or butyl glycol, or butyl glycol acetate, as organic binder - polyvinyl butyral, which also acts as a polymer binder, and dibutyl phthalate - as a plasticiser, the powder is dispersed at the following ratio of components, wt.pts.: oxide powder, solvent, polyvinyl butyral and dibutyl phthalate at ratio of 25:69:3:3 or at ratio of 10:69:3:3, respectively, to obtain ink with viscosity of 3–30 cP.

EFFECT: obtaining ink for 3D printing for automation of SOFC production process.

2 cl, 1 tbl, 6 ex