▎ 摘　　要

NOVELTY - Carbon nanotubes are uniformly dispersed to copper plating solution, and direct current is applied on copper foil. The copper-carbon nanotubes composite coating layer is heated under protective atmosphere. Carbon nanotubes and/or graphene are uniformly dispersed to tin-plating solution and direct current is applied, to obtain tin-carbon nanotubes or tin-graphene or tin-carbon nanotubes-graphene composite coating. The resultant product is heated to obtain carbon-copper-tin alloy cathode material. USE - Preparation of carbon-copper-tin alloy cathode material (claimed). ADVANTAGE - The carbon-copper-tin alloy cathode material having excellent cyclic characteristics is manufactured by simple process. DETAILED DESCRIPTION - Carbon nanotubes are uniformly dispersed to copper plating solution, and direct current is applied on copper foil, to obtain copper-carbon nanotubes composite coating layer. The resultant product is heat treated under protective atmosphere. Carbon nanotubes and/or graphene are uniformly dispersed to tin-plating solution and direct current is applied, to obtain tin-carbon nanotubes or tin-graphene or tin-carbon nanotubes-graphene composite coating. The resultant product is heated to obtain carbon-copper-tin alloy cathode material. The content of carbon nanotubes with respect to copper plating solution is 2-8 g/L. The concentration of carbon nanotubes and/or graphene is 1-5 g/L.