Endogenous Functional Group Engineering Enables High-Efficiency Hard Carbon Anodes for Sodium-ion Batteries.
Hard carbon is a leading anode for sodium-ion batteries, but its widespread use is still prevented from low initial Coulombic efficiency (ICE) and unstable electrode-electrolyte interfaces. In this work, we show that engineering endogenous functional groups can directly encode solid-electrolyte interphase (SEI) chemist...