Sustainable Solvent-Free Production and Resulting Performance of Polymer Electrolyte-Based All-Solid-State Battery Electrodes
Laura Helmers, Linus Froböse, Karsten Friedrich, Maja Steffens, Dominik Kern, Peter Michalowski and Arno Kwade
In this publication two scalable and sustainable process chains are presented, for manufacturing of polymer electrolyte-based all-solid-state cathodes applicable for industrial series production. Both process chains start with a melt granulation of the polymer electrolyte-based composite cathode. By adjusting the granulation process parameters, the process time and, thus, the production costs can be reduced. The polymer solid electrolyte distribution induced by the process shows a considerable influence on the rate capability of the ASSB cells. The manufactured pouch cells reach approx. 140 mAh g-1 at 0.1C and 75 mAh g‑1, 50 mAh g-1 at 1C discharge rate and 80 °C for extruded-calendered and directly calendered electrodes respectively, which is comparable to other recent publications on laboratory scale.