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:
Feb. 17, 1987
Filed:
Nov. 27, 1985
Peter Schmoede, Brilon, DE;
Detlef Katryniok, deceased, late of Brilon, DE;
Jean P Ruch, Brilon, DE;
Abstract
An oxygen electrode for alkaline galvanic cells. The electrode includes a talyst-containing carbon layer, a current collector, and a preferably foil-like separator for separating a liquid chamber from a gas chamber in such a way that the gas can pass to the carbon layer but the liquid cannot enter the gas chamber. The electrode has a structurally simple construction as a multi-layer, gas diffusion electrode, the current density of which, in the temperature range of between approximately 20.degree. and 80.degree. C., is approximately 350 mA/cm.sup.2 during operation with air, and greater than 1 A/cm.sup.2 during operation with oxygen. The current collector includes a metal grid which is at least partially embedded in a carbon layer. In the method of producing such an oxygen electrode, a catalyst salt solution is mixed with an aqueous activated carbon suspension and is deposited onto the activated carbon to form a catalyst dispersion. Subsequently, the liquid is separated off to form a catalyst composition, and the metal grid is embedded at least partially in this catalyst composition.