METHOD OF CONTINUOUS TOTAL LIQUID-PHASE SULFIDE-BASED SOLID STATE BATTERY ELECTRODE SLURRY COATING

A method of making a solid-state electrode sheet is provided. The method includes mixing precursors capable of chemically reacting to form a target solid-state electrolyte (SSE) together with one or more of a binder, an electrode active material, and a conductive carbon in a solvent to form a coating slurry. The precursors a undergoes a chemical reaction in the solvent to form the target SSE. The coating slurry is applied onto a current collector. The solvent is evaporated from the coating slurry on the current collector, thereby producing a solid-state electrode sheet having a target SSE. The precursors may be lithium sulfide (LiS) and phosphorus pentasulfide (PS) reacting in a tetrahydrofuran (THF) solvent to produce a sulfide-base SSE such as LiPS.