Elucidating Dynamic Evolution of the Sulfur Cathode in Sulfide-Based All-Solid-State Lithium–Sulfur Batteries

(LGPS) in the cathode, manifested as simultaneous S dissolution and LGPS decomposition, which aggravate consumption of active materials and increase ion transport resistance. These straightforward evidence and in-depth studies uncover the S cathode process and enrich fundamental comprehensions of reaction mechanisms in ASSLS batteries.