Conductive binary Li borate glass coating for improved Ni-rich positive electrode in sulfide-based all-solid-state Li batteries.

ABSTRACT: Coating Ni-rich layered oxide positive electrodes is essential to improve their electrochemical performance in sulfide-based all-solid-state Li batteries, but achieving cost-effective, high-performance positive electrodes remains challenging. In this work, we apply a thin (~3 nm) conductive binary Li borate glass coating (0.5Li₂O·0.5B₂O₃) onto single-crystal LiNi_0.8Co_0.1Mn_0.1O₂ using a simple dry process and heating. This coated positive electrode delivers 209 mAh g^-1 specific capacity at a specific current of 20 mA g^-1 with 79.7% initial Coulombic efficiency, retains 87.8% capacity after 1000 cycles at a specific current of 200 mA g^-1, and achieves 14.6 mAh cm^-2 areal c

SUBMITTER: Luo J 

PROVIDER: S-EPMC12559224 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature