Probing the reversibility and kinetics of Li during SEI formation and (de)intercalation on edge plane graphite using ion-sensitive scanning electrochemical microscopy.

Ions at battery interfaces participate in both the solid-electrolyte interphase (SEI) formation and the subsequent energy storage mechanism. However, few methods can directly track interfacial Li dynamics. Herein, we report on scanning electrochemical microscopy with Li sensitive probes for its , localized tracking during SEI formation and intercalation.