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High-temperature all-solid-state batteries with LiBH4 as electrolyte – a case study exploring the performance of TiO2 nanorods, Li4Ti5O12 and graphite as active materials

  • Marlena Volck , Bernhard Gadermaier , Volker Hennige , H. Martin R. Wilkening and Ilie Hanzu EMAIL logo
Published/Copyright: April 5, 2024
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 79 Issue 4

Abstract

The hexagonal high-temperature form of LiBH4 is known as a fast ion conductor. Here, we investigated its suitability as a solid electrolyte in high-temperature all-solid-state cells when combined with the following active materials: Li metal, graphite, lithium titanium oxide (Li4Ti5O12, LTO), and nanocrystalline rutile (TiO2). First results using lithium anodes and rutile nanorods as cathode material show that a cell constructed by simple cold-pressing operates at reversible discharge capacities in the order of 125 mA h g−1 at a C-rate of C/5 and at temperatures as high as 393 K. Besides TiO2, the compatibility of the LiBH4 with other active materials such as graphite and LTO was tested. We found evidence of possible interface instabilities that manifest through rare, yet still detrimental, self-charge processes that may be relevant for hydrogen storage applications. Moreover, we investigated the long-term cycling behavior of the cells assembled and demonstrate the successful employment of LiBH4 as an easily processable model solid electrolyte in practical test cells.

Keywords: solid-state batteries; lithium borohydride; nanosized rutile; graphite; LTO

Dedicated to Professor Thomas Bredow of the University of Bonn on the occasion of his 60th birthday.

Corresponding author: Ilie Hanzu, Institute for Chemistry and Technology of Materials, Graz University of Technology (NAWI Graz), Stremayrgasse 9, 8010 Graz, Austria and Alistore – ERI European Research Institute, CNRS FR3104, Hub de l’Energie, Rue Baudelocque, F-80039 Amiens, France, E-mail:

Funding source: Austrian Federal Ministry of Science, Research and Economy, as well as from the Austrian National Foundation for Research, Technology and Development (CD-Laboratory of Lithium Batteries: Ageing Effects, Technology and New Materials)

Funding source: FFG

Award Identifier / Grant number: (project SAM4SIB, grant no. FO999903691)

Funding source: FFG project SafeLIB

Funding source: Deutsche Forschungsgemeinschaft (DFG), FOR 1227 MoLiFe

Award Identifier / Grant number: grant no. WI3600/2-2, WI3600/4-1 (recipient H.M.R. Wilkening) and HA6966/1–2 (recipient I. Hanzu)

  1. Research ethics: Not applicable.

  2. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  3. Competing interests: The authors declare no conflict of interest regarding this article.

  4. Research funding: This study received funding from the Austrian Federal Ministry of Science, Research and Economy, as well as from the Austrian National Foundation for Research, Technology and Development (CD-Laboratory of Lithium Batteries: Ageing Effects, Technology and New Materials), from the FFG (project SAM4SIB, grant no. FO999903691) and from the FFG project SafeLIB; iii) from the Deutsche Forschungsgemeinschaft (DFG), FOR 1227 MoLiFe grant no. WI3600/2-2, WI3600/4-1 (recipient H.M.R. Wilkening) and HA6966/1–2 (recipient I. Hanzu).

  5. Data availability: The data can be obtained on request from the corresponding author.

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Received: 2023-10-30
Accepted: 2023-11-20
Published Online: 2024-04-05
Published in Print: 2024-04-25

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

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  2. In this issue
  3. Editorial
  4. Thomas Bredow zum 60. Geburtstag gewidmet
  5. Research Articles
  6. Ni2Mo3N: crystal structure, thermal properties, and catalytic activity for ammonia decomposition
  7. Ionic conductivity of nanocrystalline γ-AgI prepared by high-energy ball milling
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  9. Solvothermal synthesis and selected properties of {[Ni(dien)2]3[V6As8O26]}2+·2 Cl– featuring the small [V6IVAs8IIIO26]4– cluster anion
  10. Ab initio calculations of the chemisorption of atomic H and O on Pt and Ir metal and on bimetallic Pt x Ir y surfaces
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  12. A molecular mechanics implementation of the cyclic cluster model
  13. A computational characterization of N-heterocyclic carbenes for catalytic and nonlinear optical applications
  14. Oxygen diffusion in β-Ga2O3 single crystals under different oxygen partial pressures at 1375 °C
  15. Origin of extended visible light absorption in nitrogen-doped CuTa2O6 perovskites: the role of copper defects
  16. High-temperature all-solid-state batteries with LiBH4 as electrolyte – a case study exploring the performance of TiO2 nanorods, Li4Ti5O12 and graphite as active materials
  17. Cu2Mg5Sn5Se16 – the first selenospinel of the A2B5C5X16 type
  18. Crystal structures and crystallographic classification of titanium silicophosphates – with a note on structure and composition of silicophosphates “M3P5SiO19”
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https://doi.org/10.1515/znb-2023-0093
Keywords for this article
solid-state batteries; lithium borohydride; nanosized rutile; graphite; LTO

Articles in the same Issue

  1. Frontmatter
  2. In this issue
  3. Editorial
  4. Thomas Bredow zum 60. Geburtstag gewidmet
  5. Research Articles
  6. Ni2Mo3N: crystal structure, thermal properties, and catalytic activity for ammonia decomposition
  7. Ionic conductivity of nanocrystalline γ-AgI prepared by high-energy ball milling
  8. Ba3Mg4Au4 – a ternary auride composed of BaAu2- and BaMg2Au-related slabs
  9. Solvothermal synthesis and selected properties of {[Ni(dien)2]3[V6As8O26]}2+·2 Cl– featuring the small [V6IVAs8IIIO26]4– cluster anion
  10. Ab initio calculations of the chemisorption of atomic H and O on Pt and Ir metal and on bimetallic Pt x Ir y surfaces
  11. mcGFN-FF: an accurate force field for optimization and energetic screening of molecular crystals
  12. A molecular mechanics implementation of the cyclic cluster model
  13. A computational characterization of N-heterocyclic carbenes for catalytic and nonlinear optical applications
  14. Oxygen diffusion in β-Ga2O3 single crystals under different oxygen partial pressures at 1375 °C
  15. Origin of extended visible light absorption in nitrogen-doped CuTa2O6 perovskites: the role of copper defects
  16. High-temperature all-solid-state batteries with LiBH4 as electrolyte – a case study exploring the performance of TiO2 nanorods, Li4Ti5O12 and graphite as active materials
  17. Cu2Mg5Sn5Se16 – the first selenospinel of the A2B5C5X16 type
  18. Crystal structures and crystallographic classification of titanium silicophosphates – with a note on structure and composition of silicophosphates “M3P5SiO19”
  19. From Cs[C2N3] to Cs3[C6N9] – a thermal and structural investigation
  20. A Hybrid Monte Carlo study of argon solidification
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