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:
Jun. 28, 1983
Filed:
May. 21, 1982
Applicant:
Inventors:
Hidejiro Kawana, Hitachi, JP;
Tatsuo Horiba, Hitachi, JP;
Kazuo Iwamoto, Hitachi, JP;
Kazunori Fujita, Tohkai, JP;
Kohki Tamura, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429 30 ; 429 41 ;
Abstract
A methanol fuel cell wherein a positive electrode and a negative electrode are disposed in contact with a solid film which exhibits a hydrogen ion- and/or hydronium ion-conductivity. The methanol permeability coefficient of the solid film of the methanol fuel cell is at most 1.times.10.sup.-6 mol/(mol/l).min.cm.sup.2.