US 12,456,744 B2
Insert for cell frame integrated with adhesive film and method of manufacturing cell frame using the same
Ye Jin Yoon, Gyeonggi-do (KR); and Byeong-Heon Jeong, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Apr. 26, 2022, as Appl. No. 17/729,720.
Claims priority of application No. 10-2021-0125667 (KR), filed on Sep. 23, 2021.
Prior Publication US 2023/0089216 A1, Mar. 23, 2023
Int. Cl. H01M 8/1004 (2016.01); C09J 7/00 (2018.01); H01M 4/88 (2006.01); H01M 8/0273 (2016.01); H01M 8/1018 (2016.01)
CPC H01M 8/1004 (2013.01) [C09J 7/00 (2013.01); H01M 4/8807 (2013.01); H01M 4/881 (2013.01); H01M 4/8896 (2013.01); H01M 8/0273 (2013.01); H01M 8/1018 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0085 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of manufacturing a four-layer membrane electrode assembly integrated with an adhesive film, the method comprising:
a step of preparing a three-layer membrane electrode assembly comprising a first electrode and a second electrode, comprising:
attaching the first electrode to a first surface of an electrolyte membrane,
attaching the second electrode to a second surface of the electrolyte membrane, and
joining a first gas diffusion layer to the first electrode; and
a step of attaching an adhesive film to the three-layer membrane electrode assembly, comprising:
preparing the adhesive film by attaching an upper protective film to an upper surface of the adhesive film and a lower protective film to a lower surface of the adhesive film,
removing the lower protective film, and
attaching the adhesive film to an outer peripheral region of the membrane electrode assembly comprising the second electrode,
wherein the adhesive film comprises a non-adhesive region provided at an inner side thereof and an adhesive region provided outside the non-adhesive region,
wherein the upper protective film comprises a first upper protective film provided at an inner side, and a second upper protective film provided outside the first upper protective film based on a cutting line, and
wherein the non-adhesive region and the adhesive region of the adhesive film are partially exposed when the first upper protective film is removed.