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US 7,029,600 B2Granted
High capacity hydrogen storage material based on catalyzed alanates
AssigneeOvonie Fuel Cell LLC
InventorsStanford R. Ovshinsky, Boyko Aladjov, Srinivasan Venkatesan, Meera Vijan, Subhash K. Dhar
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Abstract
A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.
Claims10
A reversible hydrogen storage material comprising:
- 80 to 99.9 weight percent of an aluminum hydride;
- and
- 0.1 to 20 weight percent of a catalytic material comprising a reversible hydrogen storage alloy, a Raney catalytic material, or combinations thereof, said catalytic material increasing the kinetics of hydrogen absorption/desorption of said aluminum hydride without significantly reducing the hydrogen storage capacity of said aluminum hydride.
A method of making a reversible hydrogen storage material comprising the steps of:
- preparing a powder mixture comprising 80 to 99.9 weight percent of an aluminum hydride and 0.1 to 20 weight percent of a catalytic material comprising a reversible hydrogen storage alloy, a Raney catalytic material, or combinations thereof, said catalytic material providing said aluminum hydride with reversible hydrogen storage while not reducing the hydrogen storage capacity of said aluminum hydride;
- and
- mechanically milling said mixture in an inert atmosphere.
Dependencies are inferred from the claim text.