Metal (boro-) hydrides for high energy density storage and relevant emerging technologies

L. J. Bannenberg, M. Heere, H. Benzidi, J. Montero, E. M. Dematteis, S. Suwarno, T. Jaroń*, M. Winny, P. A. Orłowski, W. Wegner, A. Starobrat, K. J. Fijałkowski, W. Grochala, Z. Qian, J. P. Bonnet, I. Nuta, W. Lohstroh, C. Zlotea, O. Mounkachi, F. CuevasC. Chatillon, M. Latroche, M. Fichtner, M. Baricco, B. C. Hauback, A. El Kharbachi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

The current energy transition imposes a rapid implementation of energy storage systems with high energy density and eminent regeneration and cycling efficiency. Metal hydrides are potential candidates for generalized energy storage, when coupled with fuel cell units and/or batteries. An overview of ongoing research is reported and discussed in this review work on the light of application as hydrogen and heat storage matrices, as well as thin films for hydrogen optical sensors. These include a selection of single-metal hydrides, Ti–V(Fe) based intermetallics, multi-principal element alloys (high-entropy alloys), and a series of novel synthetically accessible metal borohydrides. Metal hydride materials can be as well of important usefulness for MH-based electrodes with high capacity (e.g. MgH2 ~ 2000 mA h g−1) and solid-state electrolytes displaying high ionic conductivity suitable, respectively, for Li-ion and Li/Mg battery technologies. To boost further research and development directions some characterization techniques dedicated to the study of M-H interactions, their equilibrium reactions, and additional quantification of hydrogen concentration in thin film and bulk hydrides are briefly discussed.

Original languageEnglish
Pages (from-to)33687-33730
Number of pages44
JournalInternational Journal of Hydrogen Energy
Volume45
Issue number58
DOIs
Publication statusPublished - 27 Nov 2020

Keywords

  • Electrochemical energy storage
  • Hydrogen sensors
  • Hydrogen storage
  • Metal borohydrides
  • Metal hydrides

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