Enhanced Electrochemical Performance and Cycling Stability of High-Nickel NCM90 Cathodes via g‑C₃N₄ Surface Coating.

ABSTRACT: High-nickel layered oxide cathodes, such as LiNi_0.9Co_0.05Mn_0.05O₂ (NCM90), represent promising options for next-generation lithium-ion batteries owing to their high specific capacity and reduced cobalt content. Nevertheless, structural degradation, transition metal (TM) dissolution, and electrolyte decomposition at elevated voltages (>4.1 V vs Li/Li⁺) significantly constrain their long-term performance. In this investigation, we apply a graphitic carbon nitride (g-C₃N₄) coating on NCM90 particles through a straightforward two-step thermal annealing process, with melamine as the precursor. The nitrogen-rich g-C₃N₄ layer enhances the surface structural stability of NCM90, thereby mitigating tra

SUBMITTER: Kim P 

PROVIDER: S-EPMC12658642 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature