Abstract: A process for the preparation of a material comprising at least silicon particles and silicon nanowires, said process comprising: (1) introducing, into a chamber of a reactor, at least: silicon particles, and a catalyst, (2) introducing, into the chamber, a precursor composition comprising at least a silane compound or a mixture of silane compounds as precursor compound of the silicon nanowires, (3) decreasing the content of molecular oxygen in the chamber, (4) applying a heat treatment to the chamber at a temperature ranging from 270° C. to 600° C., and (5) recovering the material comprising at least silicon particles and silicon nanowires. A material based on silicon particles and on silicon nanowires and its use for manufacturing electrodes, notably anodes, which can be used in an energy storage device.

Abstract: A process for the preparation of a material including at least silicon particles and silicon nanowires, the process including the following stages: (1) the introduction, into a chamber of a reactor, of at least: silicon particles and a catalyst; (2) the introduction, into the chamber of the reactor, of a precursor composition of the silicon nanowires; (3) the decrease in the content of molecular oxygen in the chamber of the reactor; (4) the application of a heat treatment, and (5) the recovery of the product; and a material based on silicon particles and on silicon nanowires and to its use for manufacturing electrodes, notably anodes, which can be used in an energy storage device.