| abstract |
(A) dispersing catalytic metal-coated Si particles, graphene sheets, and an optional blowing agent in a liquid medium to form a graphene / Si dispersion; and (b) distributing and dispersing the dispersion on a support substrate. Depositing to form a wetting layer and removing the liquid medium from the wetting layer to form a dried layer of the graphene / Si mixture material; and (c) forming the dried layer at 300C to 2,000C. Exposed to the high temperature environment to induce volatile gas molecules from the graphene sheet or activate the blowing agent to produce graphene foam, while at the same time resulting from Si particles as a feedstock in the pores of the foam In forming the anode layer by enabling catalytic metal catalyst growth of a plurality of Si nanowires, the Si nanowires may have a diameter of 5-100 nm and a length-to-diameter diameter of at least 5 nm. And a step of having and aspect ratio, a method for producing the anode layer. [Selection diagram] FIG. |