Preparation of Porous Silicon Nanomaterials and Applications in High Energy Lithium Ion Batteries

Porous silicon nanomaterials hold great promise the fields of drug therapy, sensors and energy storage and conversion due to their high specific surfaces areas and tunable physicochemical properties. Especially in the area of high energy lithium ion batteries, porous silicon has attracted many concerns owning to the abundant pore channels, Which will effectively releasing the huge stress that induced by the volume change and shorten the lithium ion transport distance. However, developing rapid and convenient methods for preparing structure tunable porous silicon still remain challenge. In recent years, some feasible strategies have been proposed and developed to synthesize porous silicon. Based on the recent developments, :his review detailedly summarizes the current popular approaches that have been employed in the preparation of porous silicon, as well as the applications in high energy lithium ion batteries. Finally, some directions that can further promote the development of porous silicon have also been proposed.