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:
Apr. 29, 2025
Filed:
Nov. 27, 2020
Toyota Boshoku Kabushiki Kaisha, Aichi-ken, JP;
Satoshi Kawabe, Ichinomiya, JP;
TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A fuel cell stack includes a cell stack body, a terminal plate, an end plate, and a passage portion. The terminal plate is disposed to be adjacent to the cell stack body in a stacking direction and is configured to collect power. The end plate is disposed on a side of the terminal plate that is opposite to the cell stack body. The terminal plate and the end plate have a through-hole that discharges reactant gas from the cell stack body. The passage portion covers an inner peripheral surface of the through-hole. The passage portion includes a peripheral wall that is formed of a plastic having an electrical insulation property and a hydrophilic portion disposed on an inner peripheral surface of the peripheral wall and is made of a plastic having a hydrophilicity higher than that of the plastic forming the peripheral wall.