▎ 摘　　要

NOVELTY - Manufacturing composite comprises: providing a powder in first weight ratio, a graphene oxide in second weight ratio, and first and second modifying agents having first and second electric charges, respectively; reacting the first modifying agent with the powder so that a surface of the powder has the first electric charge; reacting the second modifying agent with the graphene oxide so that a surface of the graphene oxide has the second electric charge; and mixing the powder and graphene oxide to form a composite. The first and second electric charges are of opposite electrical polarities. USE - The method is useful for manufacturing a composite (claimed) which is useful for a battery. ADVANTAGE - The method utilizes the simple electric charge adhesion method, without the necessity of covalently bonding the silicon powder to the graphene, which can cause the silicon powder to uniformly adhere to the surface of each graphene layer to avoid the problems of re-stacking of graphene and the aggregation of the silicon powder, hence, the electric capacity and the stability of the charging and discharging characteristics of a battery can be effectively improved. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a composite containing powder comprising a surface of a powder having the first electric charge and a surface of a graphene having the second electric charge; (2) modifying a powder, comprising providing a modifier having an electric charge and distributing the modifier on a surface of a powder so that the surface of the powder has the electric charge; and (3) modifying a powder, comprising providing a modifying agent having a first free radical and an electric charge, providing a powder having a second free radical and causing the first free radical to be bound with the second free radical so as to enable the powder to have the electric charge. DESCRIPTION OF DRAWING(S) - The figure shows a flow diagram of a method for manufacturing a composite.