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:
May. 13, 2014
Filed:
Nov. 14, 2006
Hideaki Kikuchi, Kawachi-gun, JP;
Masaru Oda, Utsunomiya, JP;
Masaharu Suzuki, Utsunomiya, JP;
Norimasa Kawagoe, Utsunomiya, JP;
Hideaki Kikuchi, Kawachi-gun, JP;
Masaru Oda, Utsunomiya, JP;
Masaharu Suzuki, Utsunomiya, JP;
Norimasa Kawagoe, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel cell stack includes stacked unit fuel cells provided between end holding members, each unit fuel cell having a membrane electrode assembly including an anode and a cathode. A pair of separators respectively contact the anode and the cathode, and respectively form reaction gas passages between one separator and the anode, and between the other separator and the cathode. For each reaction gas passage, a gas supply passage and a gas discharge passage are formed through the unit fuel cells and one end holding member so that they communicate with the reaction gas passage of each unit fuel cell, and a drainage passage is also formed through the unit fuel cells and one end holding member. An end of the drainage passage and an end of the gas discharge passage on the side of the other end holding member are joined to each other.