Sn@C Composite with an Ultra-high Initial Coulombic Efficiency via Interfacial Engineering for Sodium-Ion Battery Anodes.
Tin (Sn)-based anodes are attractive candidates for sodium-ion batteries due to their high theoretical capacity and low operating potential. However, their practical viability is severely constrained by drastic volume changes, unstable solid-electrolyte interphase (SEI) formation, and intrinsically low initial Coulombi...