Kim, Subin Shin, Chaeyeon Cho, Jinhan Lee, Jieun 2025-11-11T03:34:45Z 2025-11-11T03:34:45Z 2025-11-11 2025-10 https://pubs.kist.re.kr/handle/201004/153434 All-solid-state batteries (ASSBs) have garnered significant attention as next-generation energy storage systems, offering high theoretical energy density and enhanced safety, and are thus considered as potential replacements for conventional liquid-based lithium-ion batteries (LIBs). Among various solid electrolytes (SEs), sulfide-based SEs are regarded as leading candidates due to their outstanding room-temperature ionic conductivity and excellent processability. Despite their advantages, the fabrication of ultrathin SE membranes remains a critical bottleneck for achieving both high energy density and cost-effective production in practical ASSB systems. In this perspective, we present an overview of the key challenges associated with ultrathin sulfide-based SE membranes, along with design criteria and recent strategies to address these issues. Particular emphasis is placed on state-of-the-art fabrication techniques, including solution casting, dry film processing, scaffold support, and pressurization-based densification, which enable the formation of ultrathin SE layers. Finally, we provide a perspective on future research directions toward the reliable integration of ultrathin sulfide SE membranes into large-format ASSBs. English AMER CHEMICAL SOC Processing Challenges and Strategies for a Robust Ultrathin Solid Electrolyte Membrane in Sulfide-Based All-Solid-State Batteries Article 10.1021/acsaem.5c02250 1 ACS Applied Energy Materials, v.8, no.19, pp.14014 - 14029 ACS Applied Energy Materials 8 19 14014 14029 N scie scopus 001585267700001 2-s2.0-105018735781 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Review LITHIUM IONIC CONDUCTOR HIGH-ENERGY-DENSITY SUPERIONIC CONDUCTOR LI ARGYRODITES THIO-LISICON STABILITY SOLVENT GLASSES LI6PS5X BINDER all-solid-state batteries sulfide solid electrolytes binder membrane fabrication scalable approach