The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Apr. 26, 2022
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Ye Jin Yoon, Gyeonggi-do, KR;
Byeong-Heon Jeong, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Abstract
Disclosed are methods manufacturing a four-layer membrane electrode assembly integrated with an adhesive film. The methods include a step of preparing a three-layer membrane electrode assembly comprising a first electrode and a second electrode by 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 by 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 including the second electrode.