High performance metal hydride based thermal energy storage systems for concentrating solar power
US-10443954-B1 · Oct 15, 2019 · US
High temperature thermochemical energy storage materials
US11976235B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11976235-B2 |
| Application number | US-202017080955-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 27, 2020 |
| Priority date | Oct 27, 2020 |
| Publication date | May 7, 2024 |
| Grant date | May 7, 2024 |
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- Title
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Abstract
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Disclosed are high enthalpy thermochemical energy storage materials that exhibit high thermal conductivity and stability at high temperature reaction conditions. Disclosed materials include hydride-based alloys that can undergo high temperature reversible hydrogenation/dehydrogenation reactions without phase change of any metal or metalloid components of the alloy. The materials undergo a reversible exothermic hydrogenation reaction to form a metal hydride and a ternary alloy that includes a high thermal conductivity metal that, in its pure state, would exhibit a phase change at the hydrogenation reaction conditions.
First claim
Opening claim text (preview).
What is claimed is: 1. A thermochemical energy storage material comprising: a) a single phase composition comprising a combination of CaAl 2 Si 2 and CaH 2 ; and b) a thermal conductivity moderator comprising graphitic carbon; wherein the thermochemical energy storage material is stable at a temperature of from 700° C. to 900° C. and at a pressure of from about 5 bar H 2 to about 60 bar H 2 . 2. The thermochemical energy storage material of claim 1 , wherein a dehydrogenation reaction of the single phase composition forms Ca 3 Al 2 Si 2 and H 2 . 3. The thermochemical energy storage material of claim 1 , wherein the single phase composition has a thermal conductivity of at least about 4 W/mK at a temperature of about 100° C. 4. The thermochemical energy storage material of claim 1 , wherein the single phase composition has a thermal conductivity of at least about 6 W/mK at a temperature of about 100° C. 5. The thermochemical energy storage material of claim 1 , wherein the thermal conductivity moderator defines pores, the pores containing the single phase composition.
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Classifications
Hydrogen storage · CPC title
- C09K5/16Primary
Materials undergoing chemical reactions when used · CPC title
Alloys containing non-metals (C22C1/05, C22C1/08 take precedence) · CPC title
Alloys based on an alkali or an alkaline earth metal · CPC title
Apparatus or devices using heat produced by exothermal chemical reactions other than combustion · CPC title
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- What does patent US11976235B2 cover?
- Disclosed are high enthalpy thermochemical energy storage materials that exhibit high thermal conductivity and stability at high temperature reaction conditions. Disclosed materials include hydride-based alloys that can undergo high temperature reversible hydrogenation/dehydrogenation reactions without phase change of any metal or metalloid components of the alloy. The materials undergo a rever…
- Who is the assignee on this patent?
- Savannah River Nuclear Solutions Llc, Battelle Savannah River Alliance Llc
- What technology area does this patent fall under?
- Primary CPC classification C09K5/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 07 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).