High enthalpy thermochemical energy storage materials
AssigneeBattelle Savannah River Alliance, LLC
InventorsPatrick A. Ward, Simona H. Murph, Henry T. Sessions, Jr.
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Abstract
Disclosed are thermochemical energy storage materials that exhibit high enthalpy of reaction for an exothermic hydrogenation reaction at high temperature reaction conditions. Disclosed materials include titanium-aluminum-vanadium based alloys that can undergo high temperature reversible hydrogenation/dehydrogenation reactions. The materials include aluminum and vanadium in conjunction with titanium in amounts designed to encourage the high enthalpy of reaction and are substantially free of materials that would lower the enthalpy of reaction.
Claims10
A thermochemical energy storage system comprising:
- a hydrogen source;
- a thermochemical energy storage material in fluid communication with the hydrogen source, the thermochemical energy storage material including a metal alloy comprising titanium in an amount of from about 50 wt. % to about 99.8 wt. %, aluminum in an amount of from about 0.1 wt. % to about 25 wt. %, and vanadium in an amount of from about 0.1 wt. % to about 25 wt. %, wherein the thermochemical energy storage material is substantially free of iron, cobalt, and manganese;
- and
- a heat transfer fluid in thermal communication with the thermochemical energy storage material;
- wherein the metal alloy is configured to undergo a reversible hydrogenation reaction at a temperature of about 500° C. or greater.
Dependencies are inferred from the claim text.