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:
Sep. 28, 2010
Filed:
Dec. 21, 2005
Hideyuki Ueda, Ibaraki, JP;
Shinsuke Fukuda, Moriguchi, JP;
Hideyuki Ueda, Ibaraki, JP;
Shinsuke Fukuda, Moriguchi, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A direct methanol fuel cell of the present invention includes a unit cell having an electrolyte membrane, an anode on one surface of the electrolyte membrane, and a cathode on the other surface of the electrolyte membrane. The anode includes an anode catalyst layer and an anode diffusion layer. The anode catalyst layer is in contact with a surface of the electrolyte membrane. The anode diffusion layer is in contact with a surface of the anode catalyst layer opposite to the surface of the anode catalyst layer in contact with the electrolyte membrane. A methanol flux value Jof the anode diffusion layer and a methanol flux value Jof the electrolyte membrane satisfy the following relations:=1×10to 5×10mol/(cm·min.),  (i)and≦1×10[mol/(cm·min.)].  (ii)