Maximizing Areal Capacity in All-Solid-State Li-Ion Batteries Using Single Crystalline Ni-Rich Cathodes and Bromide-Based Argyrodite Solid Electrolytes Under Optimized Stack Pressure.

ABSTRACT: All-solid-state lithium-ion batteries (ASSLBs) are a promising next-generation energy storage technology for their enhanced safety and high energy density. In this study, we develop high-performance ASSLBs utilizing a Ni-rich single-crystalline NCM811 (SC-NCM811) cathode and a Li₆PS₅Br argyrodite solid electrolyte. By optimizing the cathode material and stack pressure, we demonstrate an exceptional areal capacity exceeding 4 mAh/cm² with a high cathode loading of ∼21 mg/cm². Electrochemical performance comparisons between SC-NCM811 and polycrystalline NCM811 (PC-NCM811) reveal the superior capacity retention and rate performance of SC-NCM811-based ASSLBs, particularly at an optimized stack pressure. Our findings underscore the potential of SC-NCM

SUBMITTER: Sham Lal M 

PROVIDER: S-EPMC12532095 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature