• 专利标题:   Method for preparing hydrogen fuel cell membrane electrode involves coating graphene film between proton exchange membrane and first catalytic layer, and coating second catalyst layer, where graphene film is back film of proton exchange membrane.
  • 专利号:   CN115986140-A
  • 发明人:   PEI X, WANG F, HUANG C, DENG X, GONG Z
  • 专利权人:   SINOSTEEL NANJING NEW MATERIAL INST CO
  • 国际专利分类:   H01M004/88, H01M008/1004, H01M008/22
  • 专利详细信息:   CN115986140-A 18 Apr 2023 H01M-004/88 202343 Chinese
  • 申请详细信息:   CN115986140-A CN10037677 09 Jan 2023
  • 优先权号:   CN10037677

▎ 摘  要

NOVELTY - The method involves coating a graphene film between a proton exchange membrane (101) and a first catalytic layer (301), and coating a second catalyst layer (302). The graphene film is a back film (102) of the proton exchange membrane. The second catalytic layer is directly coated on a surface of the proton exchange membrane. A raw material catalytic layer and the second catalytic layer are platinum carbon catalyst, Nafion(Sulfonated tetrafluoroethylene based fluoropolymer-copolymer), water and isopropanol. USE - Method for preparing hydrogen fuel cell membrane electrode. ADVANTAGE - The method enables to prepare hydrogen fuel cell membrane electrode that has good quality film electrode, and does not swell and deform due to the anti-stretching action of the back film. The method pre-coats a layer graphene anti-tensile layer between the proton exchange membrane and the first catalytic layer, does not need to add additional additive or other additional operation in the catalyst slurry when tearing the back film coating the other side catalyst slurry and proton exchange membrane substantially without swelling, and can obtain good quality film electrode. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a hydrogen fuel cell membrane electrode. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating the method for preparing hydrogen fuel cell membrane electrode (Drawing includes non-English language text). 101Proton exchange membrane 102Back film 301First catalytic layer 302Second catalytic layer