Next Article in Journal
Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness
Previous Article in Journal
Diesel/CNG Mixture Autoignition Control Using Fuel Composition and Injection Gap
Article Menu
Issue 10 (October) cover image

Export Article

Open AccessReview
Energies 2017, 10(10), 1645;

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, DK-8000 Aarhus, Denmark
Department of Physics and Astronomy, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
International Research Center for Hydrogen Energy, Kyushu University, Fukuoka 819-0395, Japan
WPI International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
Department of Mechanical Engineering, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan
Kyushu University Platform of Inter/Transdisciplinary Energy Research, Fukuoka 819-0395, Japan
Authors to whom correspondence should be addressed.
Academic Editor: Haolin Tang
Received: 18 September 2017 / Revised: 5 October 2017 / Accepted: 12 October 2017 / Published: 18 October 2017
Full-Text   |   PDF [3869 KB, uploaded 20 October 2017]   |  


Hydrogen has a very diverse chemistry and reacts with most other elements to form compounds, which have fascinating structures, compositions and properties. Complex metal hydrides are a rapidly expanding class of materials, approaching multi-functionality, in particular within the energy storage field. This review illustrates that complex metal hydrides may store hydrogen in the solid state, act as novel battery materials, both as electrolytes and electrode materials, or store solar heat in a more efficient manner as compared to traditional heat storage materials. Furthermore, it is highlighted how complex metal hydrides may act in an integrated setup with a fuel cell. This review focuses on the unique properties of light element complex metal hydrides mainly based on boron, nitrogen and aluminum, e.g., metal borohydrides and metal alanates. Our hope is that this review can provide new inspiration to solve the great challenge of our time: efficient conversion and large-scale storage of renewable energy. View Full-Text
Keywords: complex metal hydrides; thermal energy storage; hydrogen storage; solid-state electrolytes; electrodes; fuel cell complex metal hydrides; thermal energy storage; hydrogen storage; solid-state electrolytes; electrodes; fuel cell

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Møller, K.T.; Sheppard, D.; Ravnsbæk, D.B.; Buckley, C.E.; Akiba, E.; Li, H.-W.; Jensen, T.R. Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage. Energies 2017, 10, 1645.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top