▎ 摘　　要

NOVELTY - Preparing (P1) a carbon-silicon composite material, where the process is implemented in a tubular chamber of a reactor, the tubular chamber is capable of rotating around its longitudinal axis (X-X), comprises: (1) introducing into the tubular chamber at least a carbon-based material, comprising a carbon support and optionally a catalyst; (2) heating the tubular chamber under carrier gas flow; (3) rotating the tubular chamber; (4) introducing a reactive silicon-containing gas mixture into the rotating tubular chamber; (5) applying a thermal treatment at a temperature of 200-900° C, and a pressure ≥ 1,02.105Pa, under reactive silicon-containing gas mixture flow, in the rotating tubular chamber; and (6) recovering the obtained product, where the step (3) can start before or after step (1) or step (2). USE - The process is useful for: making an electrode including a current collector; and making an energy storage device; and preparing a carbon-silicon composite material (all claimed), preferably nanowires or nano-isles, which is used as an anode active material and for the manufacture of a lithium-ion battery. ADVANTAGE - The process: utilizes rotating mechanical fluidized-bed reactors which are more flexible than the classical ones; operating at a pressure superior to atmospheric pressure gives very high chemical yields of final composites reducing the necessity to collect particles and fines at the exhaust of the reactor; and can be performed at laboratory scale (up to 1 kg per day), at pilot scale (up to 100 kg per day) and up to industrial scale (several tons per day), according to the equipment dimensions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: making (M1) an electrode including a current collector, comprising (i) implementing the process for preparing a carbon-silicon composite material, and (ii) covering at least one surface of the current collector with a composition comprising the carbon-silicon composite material, as an electrode active material; and making (M2) an energy storage device, like a lithium secondary battery, including a cathode, an anode, and a separator disposed between the cathode and the anode, where the method comprises implementing the method (M2) for making at least one of the electrodes, preferably the anode. DESCRIPTION OF DRAWING(S) - The figure illustrates diagrammatic representation of producing silicon-carbon composite material in the rotating fluidized-bed reactor. 201Loading carbon-based material powder into chamber 202Providing carrier gas 203Starting rotation 204Starting heating during carrier gas flow 205Stabilizing temperature