Standardizing critical current density measurements in lithium garnets

Matthias Klimpel; Huanyu Zhang; Maksym V Kovalenko; Kostiantyn V Kravchyk

doi:10.1038/s42004-023-01002-4

Standardizing critical current density measurements in lithium garnets

Commun Chem. 2023 Sep 9;6(1):192. doi: 10.1038/s42004-023-01002-4.

Authors

Matthias Klimpel^{1

2}, Huanyu Zhang^{1

2}, Maksym V Kovalenko^{3

4}, Kostiantyn V Kravchyk^{5

6}

Affiliations

¹ Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland.
² Empa - Swiss Federal Laboratories for Materials Science & Technology, 8600, Dübendorf, Switzerland.
³ Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland. mvkovalenko@ethz.ch.
⁴ Empa - Swiss Federal Laboratories for Materials Science & Technology, 8600, Dübendorf, Switzerland. mvkovalenko@ethz.ch.
⁵ Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland. Kostiantyn.Kravchyk@empa.ch.
⁶ Empa - Swiss Federal Laboratories for Materials Science & Technology, 8600, Dübendorf, Switzerland. Kostiantyn.Kravchyk@empa.ch.

Abstract

The formation of Li dendrites at the Li/electrolyte interface at practically relevant current densities (> 1 mA cm⁻²) is a critical issue hindering the deployment of non-flammable and non-toxic Li₇La₃Zr₂O₁₂ (LLZO) electrolyte in solid-state batteries. In this comment, the authors argue for an agreement to standardize measurements of the critical current density at which Li dendrites begin to penetrate the LLZO solid-state electrolyte.