Optimization of Edge Quality in the Slot‐Die Coating Process of High‐Capacity Lithium‐Ion Battery Electrodes

Understanding and reducing edge elevations at the lateral edges are crucial aspects to reduce reject rates during electrode production for lithium-ion batteries (LIB). Herein, different process conditions of water-based, shear-thinning coatings in LIB electrodes presented. The reduction is transferred from state-of-the-art high-capacity electrodes. developed configuration greatly reduces caused by cutting off areas industrial roll-to-roll production. Compared with state-of-the art electrodes, rate significantly higher because geometry crossweb direction wider. An optimization can be achieved a combined adjustment coating gap slot-die angle substrate (angle attack) affect pressure field bead. Therefore, systematic investigation these parameters In addition, stability required. Based on this optimization, (5 mAh cm−2) 69% ultrathick (7 48% possible.