Lithium-Ion: Electrolyte

Reproducibility Of All-Solid-State Battery Cell Performance In this study, the interlaboratory comparability of all-solid-state battery cycling data was investigated. Commercial NMC 622, Li6PS5Cl and indium foil were sent to 21 different groups. The groups were asked to assemble and cycle ASSB cells under defined conditions but using their individual cell set-ups and preparation procedures. The initial discharge capacities at 0.1 C after pretreatment range from 23.7 mAh/g to 143.1 mAh/g. Thus, the comparability of ASSB cell data originating from different groups and cell set-ups is limited.

To improve the comparability, we recommend reporting all processing and cell parameters in Table 1. Moreover, with a cell failure rate of 43%, this study shows that the assembly of ASSB cells is challenging. Therefore, we recommend reporting the number of failed cells to better assess the reproducibility and robustness of the assembly protocol.

Source: Puls et al, Nat Energy, 2024

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