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Challenges in speeding up solid-state battery development

Nature Energy volume 8, pages 230–240 (2023)Cite this article

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Abstract

Recent worldwide efforts to establish solid-state batteries as a potentially safe and stable high-energy and high-rate electrochemical storage technology still face issues with long-term performance, specific power and economic viability. Here, we review key challenges that still involve the need for fast-conducting solid electrolytes to provide sufficient transport in composite cathodes. In addition, we show that high-performance anodes together with protection concepts are paramount to establish dense high-energy solid-state batteries and that lithium-based solid-state batteries as well as metal anodes may not be the ultimate solution. We further discuss that diversity in terms of materials, research teams and approaches is key to establish long-term solid-state batteries. About ten years after the first ground-breaking publication of lithium solid electrolytes with an ionic conductivity higher than that of liquid electrolytes, it is time to realistically address the remaining key challenges for full-scale commercialization, cell performance and implementation.

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Fig. 1: Generalized lithium SSB cell concept.
Fig. 2: Tortuosity effects in solid-state cathode composites.
Fig. 3: Classification of SEs based on lithium content.
Fig. 4: Critical issues of the lithium metal anode.
Fig. 5: Known interface-related issues in SSBs and potential solutions.

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Acknowledgements

We acknowledge financial support within the cluster of competence FESTBATT funded by Bundesministerium für Bildung und Forschung (BMBF; projects 03XP0431, 03XP0430A and 03XP0430F). We thank P. Till for support in data analyses.

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Authors and Affiliations

  1. Institute of Physical Chemistry & Center for Materials Research (ZfM/LaMa), Justus Liebig University, Giessen, Germany

    Jürgen Janek

  2. Batteries and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany

    Jürgen Janek

  3. Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany

    Wolfgang G. Zeier

  4. Institut für Energie- und Klimaforschung (IEK), IEK-12 Helmholtz-Institut Münster, Forschungszentrum Jülich, Münster, Germany

    Wolfgang G. Zeier

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Janek, J., Zeier, W.G. Challenges in speeding up solid-state battery development. Nat Energy 8, 230–240 (2023). https://doi.org/10.1038/s41560-023-01208-9

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