Rational design of three-dimensional pomegranate-shaped double-layer carbon-shell-coated Si nanoparticles as an excellent anode material for lithium-ion batteries

Abstract

Double-layer carbon-shell-coated Si nanoparticles (Si@DCSS) exhibit a morphology similar to pomegranate. This structure effectively suppresses the volume change of Si in the process of ion transport, endowing Si@DCSS with excellent cyclic stability.