Synthesis and Electrochemical Performance of Mesoporous Carbon Materials prepared by SiO2 Template as Anode Material for Lithium-ion Batteries

摘要

Porous carbons have been considered as promising electrode materials for LIBs for a series of advantages [1]. Porous structures possess high specific surface area and edge/defects to offer abundant active sites. It guarantees the rapid charge-discharge routes and decrease diffusion length of lithium ions [2]. In this work, we synthesized the hierarchical porous carbons (HPCs) by a simple method using sucrose and commercial silica nanoparticles as carbon precursor and template, respectively. The HPCs owned a large number of pores. When used as anode material in lithium-ion batteries, HPCs showed favorable electrochemical properties.