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Title: Metal hydride-based thermal energy storage systems

Abstract

The invention provides a thermal energy storage system comprising a metal-containing first material with a thermal energy storage density of about 1300 kJ/kg to about 2200 kJ/kg based on hydrogenation; a metal-containing second material with a thermal energy storage density of about 200 kJ/kg to about 1000 kJ/kg based on hydrogenation; and a hydrogen conduit for reversibly transporting hydrogen between the first material and the second material. At a temperature of 20.degree. C. and in 1 hour, at least 90% of the metal is converted to the hydride. At a temperature of 0.degree. C. and in 1 hour, at least 90% of the metal hydride is converted to the metal and hydrogen. The disclosed metal hydride materials have a combination of thermodynamic energy storage densities and kinetic power capabilities that previously have not been demonstrated. This performance enables practical use of thermal energy storage systems for electric vehicle heating and cooling.

Inventors:
;
Publication Date:
Research Org.:
HRL Laboratories, LLC Malibu, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1397254
Patent Number(s):
9,777,968
Application Number:
14/519,208
Assignee:
HRL Laboratories, LLC ARPA-E
DOE Contract Number:
AR0000173
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Oct 21
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Vajo, John J., and Fang, Zhigang. Metal hydride-based thermal energy storage systems. United States: N. p., 2017. Web.
Vajo, John J., & Fang, Zhigang. Metal hydride-based thermal energy storage systems. United States.
Vajo, John J., and Fang, Zhigang. Tue . "Metal hydride-based thermal energy storage systems". United States. doi:. https://www.osti.gov/servlets/purl/1397254.
@article{osti_1397254,
title = {Metal hydride-based thermal energy storage systems},
author = {Vajo, John J. and Fang, Zhigang},
abstractNote = {The invention provides a thermal energy storage system comprising a metal-containing first material with a thermal energy storage density of about 1300 kJ/kg to about 2200 kJ/kg based on hydrogenation; a metal-containing second material with a thermal energy storage density of about 200 kJ/kg to about 1000 kJ/kg based on hydrogenation; and a hydrogen conduit for reversibly transporting hydrogen between the first material and the second material. At a temperature of 20.degree. C. and in 1 hour, at least 90% of the metal is converted to the hydride. At a temperature of 0.degree. C. and in 1 hour, at least 90% of the metal hydride is converted to the metal and hydrogen. The disclosed metal hydride materials have a combination of thermodynamic energy storage densities and kinetic power capabilities that previously have not been demonstrated. This performance enables practical use of thermal energy storage systems for electric vehicle heating and cooling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2017},
month = {Tue Oct 03 00:00:00 EDT 2017}
}

Patent:

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