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September 18, 2024
Journal Article
Title
Benchmarking the reproducibility of all-solid-state battery cell performance
Abstract
The interlaboratory comparability and reproducibility of all-solid-state battery cell cycling performance are poorly understood due to the lack of standardized set-ups and assembly parameters. This study quantifies the extent of this variability by providing commercially sourced battery materials - LiNi0.6Mn0.2Co0.2O2 for the positive electrode, Li6PS5Cl as the solid electrolyte and indium for the negative electrode - to 21 research groups. Each group was asked to use their own cell assembly protocol but follow a specific electrochemical protocol. The results show large variability in assembly and electrochemical performance, including differences in processing pressures, pressing durations and In-to-Li ratios. Despite this, an initial open circuit voltage of 2.5 and 2.7 V vs Li+/Li is a good predictor of successful cycling for cells using these electroactive materials. We suggest a set of parameters for reporting all-solid-state battery cycling results and advocate for reporting data in triplicate.
Author(s)
Humboldt-Universität zu Berlin, Helmholtz-Zentrum Berlin für Materialien und Energie
Justus Liebig Universitat Giessen, Karlsruher Institut für Technologie, Leibniz Universität Hannover
Keyword(s)
Benchmarking
Electrolytes
Indium compounds
Semiconducting manganese compounds
All-solid-state battery
Assembly parameters
Battery cells
Battery materials
Cell cycling
Cell performance
Cycling performance
Positive electrodes
Reproducibilities
Set-ups
benchmarking
electrochemical method
electrolyte
energy storage
fuel cell
indium
research method
Solid-State Batteries