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:
Aug. 05, 1986
Filed:
Dec. 16, 1983
Edward N Walsh, New City, NY (US);
Stauffer Chemical Company, Westport, CT (US);
Abstract
This invention relates to a novel intermediate temperature fuel cell electrolyte, fuel cells containing this electrolyte and a process for operating these fuel cells. The fuel cell electrolyte composition comprises one or more phosphonic acids. Typical phosphonic acids are compounds of the formula ##STR1## wherein R is a moiety derived from hydroxyalkyl, alkyl, phenyl, alkylphenyl, vinyl, haloalkyl, halophenyl, halomethylphenyl, vinyl, amine, ammonia and ##STR2## and m represents an integer from 1 to 3 and n represents 0 (zero) or the integer 1. This electrolyte composition can further comprise phosphoric acid. The fuel cell electrolyte composition can include a gelling agent and can be effectively used in fuel cells wherein the fuel is hydrogen, the oxidizer is oxygen and the operating temperature is between about 100.degree. C. and 250.degree. C.