Phosphoric acid fuel cells with improved corrosion resistance

Patent · Tue Aug 21 00:00:00 EDT 1990

OSTI ID:6461669

Stewart, Jr, R C; Petraglia, V J

This patent describes a phosphoric acid fuel cell. It comprises: an anode for hydrogen oxidation, a cathode for oxygen reduction, the anode and cathode being electrically connected external to the fuel cell; a matrix impregnated with a phosphoric acid electrolyte in contact with the anode and cathode; and corrosion prone ducts for supplying a hydrogen-rich gas to the anode, for supplying oxygen to the cathode, and for removing water producted at the cathode.

• Assignee: International Fuel Cells, South Windsor, CT (USA)
• Patent Number(s): US 4950563; A
• Application Number: PPN: US s 7-289869
• OSTI ID: 6461669
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
300505 -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ANODES
CATHODES
CHEMICAL REACTIONS
CHROMIUM
COATINGS
COMPOSITE MATERIALS
CORROSION RESISTANCE
CORROSIVE EFFECTS
DIRECT ENERGY CONVERTERS
DUCTS
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
FLUORINE COMPOUNDS
FUEL CELLS
HALOGEN COMPOUNDS
HYDROGEN
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
MATERIALS TESTING
METALS
NONMETALS
OXIDATION
PHOSPHORIC ACID
PROTECTIVE COATINGS
TESTING
TRANSITION ELEMENTS