US 12,410,335 B2
Method for producing ink for use in forming electrolyte layer of fuel cell
Fumiyoshi Kurosu, Saitama (JP); and Naoki Kushitani, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Jan. 6, 2025, as Appl. No. 19/010,180.
Claims priority of application No. 2024-005152 (JP), filed on Jan. 17, 2024.
Prior Publication US 2025/0230330 A1, Jul. 17, 2025
Int. Cl. C09D 11/52 (2014.01); H01M 8/126 (2016.01)
CPC C09D 11/52 (2013.01) [H01M 8/126 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing an ink for use in forming an electrolyte layer of a fuel cell, comprising:
a crushing step of crushing a cerium-containing oxide powder to obtain a cerium-containing oxide fine powder;
a first mixing step of mixing and stirring the cerium-containing oxide fine powder, an ionomer, and water to obtain a first mixed liquid;
a second mixing step of mixing and stirring the first mixed liquid and 1-propanol to obtain a second mixed liquid; and
an ultrasonic treatment step of performing an ultrasonic treatment on the second mixed liquid.