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. 30, 1986
Filed:
Nov. 19, 1984
Applicant:
Inventors:
Walter Juda, Lexington, MA (US);
Amiram B Ilan, Newton, MA (US);
Assignee:
Prototech Company, Newton Highlands, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; C25B / ;
U.S. Cl.
CPC ...
204265 ; 204266 ; 204283 ; 204284 ; 429 42 ;
Abstract
This invention is concerned with catalytic gas-diffusion structures such as electrodes and barriers comprising, as an integral part of a portion thereof, a non-ionic aqueous gel such as a polyvinyl alcohol, rendering said electrode impervious to gas percolation, while retaining electrolyte contact with the structures; and with methods of using said electrodes or barriers in a variety of electrochemical systems including electrolysis cells, fuel cells, batteries and others, as well as in metal-recovery systems involving no electricity.