Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1237 - 1237
Published: April 30, 2025
Polyphenylene sulfide (PPS)-based separators have garnered significant attention as high-performance components for next-generation lithium-ion batteries (LIBs), driven by their exceptional thermal stability (>260 °C), chemical inertness, and mechanical durability. This review comprehensively examines advances in PPS separator design, focusing on two structurally distinct categories: porous engineered via wet-chemical methods (e.g., melt-blown spinning, electrospinning, thermally induced phase separation) nonporous solid-state fabricated through solvent-free dry-film processes. Porous variants, typified submicron pore architectures (<1 μm), enable electrolyte-mediated ion transport with ionic conductivities up to >1 mS·cm-1 at >55% porosity, while counterparts leverage crystalline sulfur-atom alignment trace electrolyte infiltration establish solid-liquid biphasic conduction pathways, achieving transference numbers >0.8 homogenized lithium flux. Dry-processed demonstrate unparalleled dimensional (<2% shrinkage 280 °C) mitigate dendrite propagation uniform electric field distribution, evidenced COMSOL simulations showing stable Li deposition under Cu particle contamination. Despite these advancements, challenges persist reconciling thickness constraints (<25 μm) robustness, scaling manufacturing, reducing costs. Innovations ultra-thin formats (<20 self-healing polymer networks, coupled compatibility extensions sodium/zinc-ion systems, are identified critical pathways advancing separators. By addressing challenges, PPS-based hold transformative potential enabling high-energy-density (>500 Wh·kg-1), intrinsically safe energy storage particularly applications demanding extreme operational reliability such vehicles grid-scale storage.
Language: Английский