Slurry-Based Processing of Solid Electrolytes: A Comparative Binder Study

摘要: Limited energy density of today's Li-ion battery technologies demands for novel cell technologies, such as the all-solid-state (ASSB). In order to achieve high densities and enable large-scale processing, thin flexible solid electrolyte (SE) layers have be implemented. This study focuses on slurry-based processing sulfidic Li$_{10}$SnP$_{2}$S$_{12}$ (LSPS). Various polymers were investigated concerning their suitability binders freestanding SE sheets. We conducted a parameter in optimize e.g. LSPS-to-binder ratio, solids content porosity. Significant differences found with regard minimum amount binder required mechanically stable sheets well homogeneity, flexibility resulting layers. The impacts type weight fraction ionic conductivity examined through lithium diffusion measurements. Impedance analysis was comparison, proving sufficiently potential application ASSB. work highlights important role polymeric SEs gives an impression how well-considered selection parameters is good properties desirable features final sheet.