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:
Dec. 25, 2012
Filed:
Feb. 25, 2010
Hiroyuki Ishikawa, Utsunomiya, JP;
Masanori Okabe, Nerima-ku, JP;
Koji Nakazawa, Utsunomiya, JP;
Eiji Haryu, Utsunomiya, JP;
Hiroyuki Ishikawa, Utsunomiya, JP;
Masanori Okabe, Nerima-ku, JP;
Koji Nakazawa, Utsunomiya, JP;
Eiji Haryu, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.