COMPLEX SI-C CATHODE BASE UNITS

A complex Si—C cathode base units includes a first order Si—C nanoparticle including a plurality of graphene pieces, and a plurality of complex monomers formed by nanometer scale silicide, and first high molecular material. The first high molecular material is used as viscosity for combining the plurality of graphene pieces and the plurality of complex monomers, a plurality of buffer spaces are formed between the plurality of graphene pieces, the complex monomers and the first high molecular material. A second high molecular material layer enclosing the first order SiC nanoparticle, the second high molecular material layer is calcined in a calcination process, so that the carbohydrate therein is carbonized. A plurality of nanometer carbon tubes tightly encloses the second high molecular material layer so that the first order Si—C nanoparticle is difficult to expand. The nanometer carbon tubes have lengths between 15˜25 μm and are arranged as an array.