▎ 摘　　要

NOVELTY - Manufacture of tin-carbon composite involves arranging a pair of electrodes of an anode and a cathode in an organic solvent containing carbon atoms, connecting and arranging a tin wire between the electrodes in a state of being immersed in the organic solvent, generating a pulse discharge in the pair of electrodes, cooling the tin wire vaporized by the pulse discharge with the organic solvent, coating the carbon atoms derived from the organic solvent on surface of tin nanoparticles to form coated tin nanoparticles, adding a composite active material sulfur and/or a carbon material in the organic solvent, dispersing, and dissolving or dispersing a dissimilar material in the dispersion liquid, separating organic solvent and coated nanoparticles, heat-treating, washing, and vacuum-drying. The carbon material is carbon powder, activated carbon, graphite, graphene, soft carbon, hard carbon, carbon black, carbon nanotubes, carbon nanofibers, modified carbon and/or carbon composite. USE - Manufacture of tin-carbon composite. ADVANTAGE - The method enables simple, easy, economical and large-scale manufacture of tin-carbon composite having uniform size, and excellent mechanical property, electrical property, thermal property and crystallinity. DETAILED DESCRIPTION - Manufacture of tin-carbon composite involves (i) arranging a pair of electrodes of an anode and a cathode spaced apart from each other in an organic solvent containing carbon atoms, (ii) connecting and arranging a tin wire between the pair of electrodes in a state of being immersed in the organic solvent, (iii) generating a pulse discharge in the pair of electrodes, (iv) cooling the tin wire vaporized by the pulse discharge with the organic solvent, (v) coating the carbon atoms derived from the organic solvent on surface of tin nanoparticles while condensing to form coated tin nanoparticles, (vi) adding a composite active material sulfur and/or a carbon material in the organic solvent, dispersing to obtain a dispersion liquid, and dissolving or dispersing a dissimilar material in the dispersion liquid, (vii) separating the organic solvent and the coated tin nanoparticles, (viii) heat-treating at 600 degrees C in an argon atmosphere, (ix) washing the obtained heat-treated tin-carbon composite, and (x) vacuum-drying at a temperature of 130-150 degrees C and a pressure of 10-2 torr to 10-3 torr for 10-12 hours. The dissimilar material is an active material comprising carbon, germanium, silicon, zinc, antimony, silver, aluminum and/or their precursors, which is reactive with lithium, or is an inactive material comprising chromium, manganese, iron, nickel, cobalt, copper, silica and/or their precursors, which is not reactive with lithium. The carbon material is carbon powder, activated carbon, graphite, graphene, soft carbon, hard carbon, carbon black, carbon nanotubes, carbon nanofibers, modified carbon and/or carbon composite.