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Abstract

Provided is a method of producing a silicon-containing composition in mass production, comprising steps of: slicing a silicon substrate with a free-abrasive wire to obtain a mixing slurry; separating the mixing slurry into a liquid mixture and a solid mixture; and sorting the solid mixture by particle size and removing the cutting wire granules from the solid mixture, so as to obtain the silicon-containing composition applicable for a lithium-ion battery. Furthermore, an anode material of a lithium-ion battery and a method of producing an anode electrode of a lithium-ion battery are provided. According to the method, a few abrasives of the wire sawing tool remain in the nano-scale or micro-scale silicon-containing composition, and thus the problems of extreme volumetric expansion under heat and high production cost are overcome. The produced silicon-containing composition is applicable for a lithium-ion battery.

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First Claim