Full-cell hydride-based solid-state Li batteries for energy storage

Michel Latroche*, Didier Blanchard, Fermin Cuevas, Abdelouahab El Kharbachi, Bjørn C. Hauback, Torben R. Jensen, Petra E. de Jongh, Sangryun Kim, Nazia S. Nazer, Peter Ngene, Shin-Ichi Orimo, Dorthe B. Ravnsbæk, Volodymyr A. Yartys

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Metallic and complex hydrides may act as anode and solid electrolytes in next generation of lithium batteries. Based on the conversion reaction with lithium to form LiH, Mg- and Tibased anode materials have been tested in half-cell configuration with solid electrolytes derived from the hexagonal high temperature modification of the complex hydride LiBH4.  These anode materials show large first discharge capacities demonstrating their ability to react with lithium. Reversibility remains more challenging though possible for a few dozen cycles. The work has been extended to full-cell configuration by coupling metallic lithium with positive electrodes such as sulfur or titanium disulfide through complex hydride solid electrolytes. Beside pure LiBH4 which works only above 120 _C, various strategies like substitution, nanoconfinement and sulfide addition have allowed to lower the working temperature around 50 _C. In addition, use of lithium closo-boranes has been attempted.  These results break new research ground in the field of solid-state lithium batteries.  Finally, operando and in-situ neutron scattering methods applied to full-cells are presented as powerful tools to investigate and understand the reaction mechanisms taking place in working batteries.
Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number15
Pages (from-to)7875-7887
ISSN0360-3199
DOIs
Publication statusPublished - 2019

Keywords

  • Metallic and complex hydrides
  • Battery
  • Anode
  • Electrolyte
  • Lithium
  • Operando

Cite this

Latroche, M., Blanchard, D., Cuevas, F., El Kharbachi, A., Hauback, B. C., Jensen, T. R., Jongh, P. E. D., Kim, S., Nazer, N. S., Ngene, P., Orimo, S-I., Ravnsbæk, D. B., & Yartys, V. A. (2019). Full-cell hydride-based solid-state Li batteries for energy storage. International Journal of Hydrogen Energy, 44(15), 7875-7887. https://doi.org/10.1016/j.ijhydene.2018.12.200