<ul><li>Solid-state batteries promise higher energy density and safety compared to lithium-ion batteries with a liquid electrolyte.</li><li>Obstacles for commercialization include high stack pressures and insufficient power density, related to limitations of charge transport within the composite cathode.</li><li>Electrochemical impedance spectroscopy can be used to investigate composite cathode microstructures and identify kinetic bottlenecks.</li><li>The cathode microstructure plays a crucial role in solid-state battery performance, and optimization strategies can be developed based on its characterization.</li></ul>

How cathode microstructure impacts solid-state batteries

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