Liquid fuel compositions for electrochemical fuel cells
AssigneeMore Energy Ltd.
InventorsGennady Finkelshtain, Yuri Katsman, Boris Filanovsky
Life of this patent
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Abstract
A new fuel composition useful for catalytic fuel cells is made up of at least two components. The primary fuel component is a surface active compound, such as methanol, that is a source of and acts to prevent unwanted decomposition of the auxiliary fuel. The auxiliary fuel is a hydrogen-containing inorganic compound with a high reduction potential, such as NaBH4, which acts as a highly reactive source of energy and serves to catalyze the catalytic oxidation of the primary fuel.
Claims12
A fuel composition for use in an electrochemical fuel cell, comprising:
- (a) a primary fuel including at least one surface-active compound;
- (b) an auxiliary fuel including at least one hydrogen-containing compound with a reduction potential such that a thermodynamic reversible potential of an electrochemical cell including said compound at an anode and an oxygen cathode is greater than or equal to 1.56 V;
- (c) an electrolyte with a pH about 7;
- and
- (d) at least one additional compound.
A fuel composition for use in an electrochemical fuel cell, comprising:
- (a) a primary fuel including at least one surface-active compound;
- (b) an auxiliary fuel including at least one hydrogen-containing compound with a reduction potential such that a thermodynamic reversible potential of an electrochemical cell including said compound at an anode and an oxygen cathode is greater than or equal to 1.56 V;
- and
- (c) an aqueous solution of 6 M KOH.
A fuel composition for use in an electrochemical fuel cell, comprising:
- (a) a primary fuel including at least one surface-active compound;
- (b) an auxiliary fuel including at least one hydrogen-containing compound with a reduction potential such that a thermodynamic reversible potential of an electrochemical cell including said compound at an anode and an oxygen cathode is greater than or equal to 1.56 V;
- and
- (c) an electrolyte with a pH above about 7;
- wherein the fuel composition comprises between 2 weight percent and 60 weight percent of said primary fuel and between 1 weight percent and saturation of said auxiliary fuel.
Dependencies are inferred from the claim text.