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All-solid-state batteries (ASSBs) offer a promising route to safer batterieswith superior energy density compared to conventional Li-ion batteries (LIBs).However, the design of the composite cathode and optimization of the underlyingmicrostructure is one of the aspects requiring intensive research. Achievingboth high energy and power density remains challenging due to limitations inionic conductivity and active material loading. Using structure-resolvedsimulations, we investigate the potential of perforated and layered electrodedesigns to enhance ASSB performance. Design strategies showing significantperformance increase in LIBs are evaluated regarding their application toASSBs. Composite cathodes with solid electrolyte channels in the structure donot significantly increase cell performance compared to unstructuredelectrodes. However, the design with a two-layer cathode proves promising. Thelayered structure effectively balances improved ionic transport due toincreased solid electrolyte fraction at the separator side and substantialactive material loading through increased active material fraction at thecurrent collector side of the cathode. Our research highlights key challengesin ASSB development and provides a clear direction for future studies in thefield.

Influence of Electrode Structuring Techniques on the Performance of All-Solid-State Batteries