A three layer design with mesoporous silica encapsulated by a carbon core and shell for high energy lithium ion battery anodes

Abstract

A novel C/SiO₂ composite with a carbon–silica–carbon (C-mcms) three layer structure was synthesized and evaluated as an anode material for high-energy lithium ion batteries. The C-mcms exhibits an excellent capacity of about 1055 mA h g⁻¹ at a current density of 500 mA g⁻¹ after 150 cycles without detectable decay, and high-rate capability.