Silicon-carbon particle, negative electrode plate, and battery

Abstract

The present disclosure relates to the technical field of batteries, and specifically to silicon-carbon particles, a negative electrode plate, and a battery. The present disclosure provides silicon-carbon particles, wherein the surface of the silicon-carbon particles has recessed portions; the number N of the recessed portions on the surface of the silicon-carbon particles is ≥1; the diameter of the recessed portions is 0.05 μm-5 μm; the depth of the recessed portions is 10 nm-μm. By providing recessed portions on the surface of the silicon-carbon particles, the present disclosure is beneficial for improving the cycling stability and expansion performance of silicon-based negative electrode materials.

Dependencies are inferred from the claim text.