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:
Jan. 15, 2008
Filed:
Dec. 12, 2002
Petra Koschany, Salzweg, DE;
Petra Koschany, Salzweg, DE;
Manhattan Scientifics, Inc., New York, NY (US);
Abstract
An electrode with adjustable gas permeability for electrochemical cells is formed by first and second laminated thin layers. The first serves for determining the overall gas permeability through the thickness of the electrode and conducting electricity. The second is for conducting electricity, supplying the reaction gases and removing the reaction products, and is a porous electricity-conducting material. The laminate consists of at least two materials of different gas permeability. The material with the higher gas permeability located on the side of the membrane forms the first layer, and the material with the lower gas permeability forms the second layer on the side away from the membrane. Openings are formed in the laminate towards the side adjacent to the membrane. The sidewalls of the openings in the area of the material with the higher gas permeability are at least partially covered by the material with the lower gas permeability.