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. 22, 1977
Filed:
Dec. 20, 1972
Bernard S Baker, Chicago, IL (US);
Leonard G Marianowski, South Holland, IL (US);
American Gas Association, Inc., Arlington, VA (US);
Abstract
The specification discloses an improved paste electrolyte composition for use in a high-temperature molten carbonate fuel cell, using substantially pure alkali metal aluminate formed from reactive alumina as the only inert material in the electrolyte. Finely divided reactive alumina substantially completely free of silica is admixed with alkali metal carbonates and fired to remove carbon dioxide to form as final inert carrier material substantially pure inert alkali metal aluminate. The initial composition of the starting mixture is selected so that the final composition is between 40 and 70% by weight alkali metal carbonates. In contrast to magnesia supported fuel cells which show a 40% drop-off in power output, the aluminate paste electrolyte-utilizing fuel cells of the invention show essentially no deterioration.