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US 2019/0157668 A1Published application
Method for preparing silicon nanocomposite dispersion using plasma, and anode active material and lithium secondary battery using same
AssigneeSino Applied Technology Co., Ltd.
InventorKab Young MOON
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Abstract
The present invention relates to a method for easily producing nanoparticles by expansion, explosion, vaporization, condensation and cooling of plasma in a liquid by means of heat resistance and, more particularly, to a method for preparing a silicon nanocomposite dispersion having a uniform carbon layer coated on the surface of silicon of which at least one area is connected to a silicon carbide formed by reacting a carbon in liquid (C) during expansion, explosion, vaporization, condensation and cooling, and applied products thereof.
Claims16
A method for preparing a silicon nanocomposite dispersion, comprising:
- (a) connecting a silicon material between a first electrode and a second electrode of a plasma generator in an organic solvent;
- and
- (b) supplying a voltage of 5˜20 kV to the first electrode and the second electrode, wherein the voltage supplying step (b) includes:
- (b-1) forming a silicon material in the form of a silicon nanoparticle;
- and
- (b-2) forming a silicon carbide bonding or a carbon layer on at least one region of the surface of the silicon nanoparticle.
3 more elements
Dependencies are inferred from the claim text.