skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
;
Issue Date:
Research Org.:
HRL Laboratories, LLC Malibu, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1397254
Patent Number(s):
9777968
Application Number:
14/519,208
Assignee:
HRL Laboratories, LLC
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
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. 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 = {2017},
month = {10}
}

Patent:

Save / Share:

Works referenced in this record:

Heat pump device
patent, October 1983


Effect of Ti Intermetallic Catalysts on Hydrogen Storage Properties of Magnesium Hydride
journal, June 2013


Effects of V content on hydrogen storage properties of V–Ti–Cr alloys with high desorption pressure
journal, September 2010


Hydrogen Storage Properties of Nanosized MgH2−0.1TiH2 Prepared by Ultrahigh-Energy−High-Pressure Milling
journal, November 2009


High Temperature Metal Hydrides as Heat Storage Materials for Solar and Related Applications
journal, January 2009


Metal hydride based heating and cooling systems: A review
journal, April 2010