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:
Nov. 04, 2014
Filed:
Jun. 15, 2010
Hiroo Yoshikawa, Toyota, JP;
Junji Nakanishi, Kasugai, JP;
Akito Kawasumi, Toyota, JP;
Tsunemasa Nishida, Toyota, JP;
Kenji Tsubosaka, Susono, JP;
Takeaki Saito, Toyota, JP;
Hiroo Yoshikawa, Toyota, JP;
Junji Nakanishi, Kasugai, JP;
Akito Kawasumi, Toyota, JP;
Tsunemasa Nishida, Toyota, JP;
Kenji Tsubosaka, Susono, JP;
Takeaki Saito, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A fuel cell includes a separator and a power generating body. The separator and power generating body are laminated each other. The power generating body is equipped at least with an electrolyte membrane. The fuel cell comprises: a sealing part that seals reaction gas supplied for electrochemical reactions at the fuel cell between the power generating body and the separator at an outer circumference part of the fuel cell, wherein a convex part and a recess are fit together in the sealing part. The convex part is formed projecting in the lamination direction on one of the power generating body and the separator, and the recess is formed recessed in the lamination direction on the other of the power generating body and the separator. At least one of the convex part and the recess is formed with a polymer material that expands with moisture absorption.