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. 08, 1997
Filed:
Apr. 13, 1995
Applicant:
Inventor:
Nagakazu Furuya, Kofu-shi, Yamanashi, JP;
Assignees:
Tanaka Kikinzoku Kogyo K.K., , JP;
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; H01M / ;
U.S. Cl.
CPC ...
204252 ; 204284 ; 2042 / ; 204242 ; 429 40 ; 429 41 ; 429 42 ;
Abstract
Disclosed herein is a gas diffusion electrode comprising a reaction layer and a gas diffusion layer attached to each other characterized in that a plurality of apertures or a concave convex surface is provided on or through the electrode to facilitate the flowing of an electrolyte. In this electrode, a large volume of an electrolyte and a gas can flow even though the interelectrode distance is small so that a reaction can be promoted to elevate the efficiency.