Approaching the downsizing limit of silicon for surface-controlled lithium storage

Abstract

Graphene-sheet-supported uniform ultrasmall (≈3 nm) silicon quantum dots are successfully synthesized using a simple and effective self-assembly strategy. They exhibit unprecedented fast, surface-controlled lithium-storage behavior and outstanding lithium-storage properties including extraordinary rate capability and remarkable cycling stability, attributable to the intrinsic role of approaching the downsizing limit of silicon. (Chemical Equation Presented).