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:
Mar. 14, 1978
Filed:
Jun. 06, 1977
Leonard G Marianowski, South Holland, IL (US);
Elias Humberto Camara, Bolingbrook, IL (US);
Hansraj Champshi Maru, Darien, IL (US);
Institute of Gas Technology, Chicago, IL (US);
Abstract
An improved molten carbonate fuel cell electrolyte wherein the inert support matrix is predominately LiAl0.sub.2 having crystalline structure with an average L/D greater than about 3 and surface area greater than about 5 sq. meters/gram and the carbonates composition is a ternary lithium-potassium-sodium or binary lithium-potassium or lithium-sodium carbonates composition having a thermal expansion of about 1.5 to about 3.5 .times. 10.sup.-5 inch/inch .degree. C. The improved molten carbonate fuel cell electrolyte of this invention provides fuel cell electrolytes capable of containing 50 to 70 wt. percent carbonate components to provide high power densities while providing a thin electrolyte which is resistant to physical damage on thermal cycling of the fuel cell. The electrolyte of this invention may also be reinforced with metallic alloys to provide additional strength characteristics.