US 12,148,964 B2
Composite polymer electrolyte membrane, electrolyte membrane with catalyst layer, membrane-electrode assembly, and solid polymer fuel cell
Tomoyuki Kunita, Otsu (JP); Kenta Minamibayashi, Otsu (JP); Daisuke Ogata, Otsu (JP); and Daisuke Izuhara, Otsu (JP)
Assigned to TORAY INDUSTRIES, INC., Tokyo (JP)
Appl. No. 17/642,817
Filed by TORAY INDUSTRIES, INC., Tokyo (JP)
PCT Filed Sep. 11, 2020, PCT No. PCT/JP2020/034419
§ 371(c)(1), (2) Date Mar. 14, 2022,
PCT Pub. No. WO2021/054252, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 2019-171866 (JP), filed on Sep. 20, 2019.
Prior Publication US 2022/0407101 A1, Dec. 22, 2022
Int. Cl. H01M 8/1067 (2016.01); H01M 8/10 (2016.01); H01M 8/1004 (2016.01); H01M 8/106 (2016.01); H01M 8/1062 (2016.01)
CPC H01M 8/1067 (2013.01) [H01M 8/1004 (2013.01); H01M 8/106 (2013.01); H01M 8/1062 (2013.01); H01M 2008/1095 (2013.01)] 18 Claims
 
1. A composite polymer electrolyte membrane comprising a polymer electrolyte and a porous substrate, and having a dry tensile modulus of 100 N/cm or more per width and a wet tensile modulus of 35 N/cm or more per width.