Precisely visit the performance modulation of functionalized separator in Li-S batteries via consecutive multiscale analysis

Despite progress of functionalized separator in preventing the shuttle effect and promoting sulfur utilization, precise non-destructive investigation structure-function-performance associativity remains limited so far Li-S batteries. Here, we build consecutive multiscale analysis via combining X-ray absorption fine structure (XAFS) computational tomography (CT) techniques to precisely visit relationship. XAFS measurement offers atomic scale changes chemical environment. Moreover, a technique CT proves role for microscopic scale, which is powerful chaining bridge structures materials with overall performance modulation cells. Benefiting from this analysis, report that uniform doping Sr 2+ into perovskite LaMnO 3-? material Mn oxidation states conductivity (chemical structure), leading effective lithium polysulfide trapping accelerated redox (separator function), resulting outstanding cell performance.