Abstract:
The present disclosure provides a carbon-silicon composite including: a first carbon matrix; and carbonized Si-block copolymer core-shell particles dispersed uniformly in the first carbon matrix. The present disclosure also provides a lithium secondary battery anode and a lithium secondary battery, which include the carbon-silicon composite.
Abstract:
The present invention relates to a carbon-silicon composite and an anode active material for a secondary battery comprising the same, and more particularly, a carbon-silicon composite in which silicon (Si)-block copolymer core-shell particles are uniformly dispersed and embedded in a carbonaceous substance.
Abstract:
Disclosed herein are a manufacturing method of a carbon-silicon composite, comprising: (a) preparing a silicon-polymer matrix slurry comprising a silicon slurry, a monomer, and a cross-linking agent; (b) performing a heat treatment on the silicon-polymer matrix slurry to manufacture a silicon-polymer carbonized matrix; (c) pulverizing the silicon-polymer carbonized matrix to manufacture silicon-polymer carbonized particles; and (d) mixing the silicon-polymer carbonized particles with a first carbon raw material, and then performing a carbonization process, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery comprising the anode for a secondary battery.
Abstract:
Disclosed herein are a manufacturing method of a carbon-silicon composite, the manufacturing method including: (a) preparing a silicon-carbon-polymer matrix slurry including a silicon slurry, carbon particles, a monomer of polymer, and a cross-linking agent; (b) performing a heat treatment process on the silicon-carbon-polymer matrix slurry to manufacture a silicon-carbon-polymer carbonized matrix; (c) pulverizing the silicon-carbon-polymer carbonized matrix to manufacture a silicon-carbon-polymer carbonized matrix structure; and (d) mixing the silicon-carbon-polymer carbonized matrix structure with a first carbon raw material and performing a carbonization process to manufacture a carbon-silicon composite, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery including the anode for a secondary battery.
Abstract:
Disclosed herein are a manufacturing method of a carbon-silicon composite, including: (a) preparing a slurry solution including silicon (Si)-block copolymer core-shell particles; (b) mixing the slurry solution with a carbon raw material to manufacture a mixed solution; (c) performing a primary carbonization process on the mixed solution, followed by pulverization, to manufacture a primary carbon-silicon composite; and (d) performing a secondary carbonization process on the primary carbon-silicon composite, followed by pulverization, to manufacture a secondary carbon-silicon composite, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery including the anode for a secondary battery.
Abstract:
The present invention relates to a negative electrode for a secondary battery and a method for manufacturing the negative electrode, and more particularly, to a negative electrode for a secondary battery which exhibits excellent charge/discharge characteristics and lifespan characteristics by including a carbon-silicon composite and graphite at a predetermined particle size ratio.
Abstract:
The present disclosure relates to a composition for preparing a silicon-carbon composite having nano-Si particulates and electrically conductive materials dispersed in an amorphous carbon, the silicon-carbon composite prepared therefrom, an electrode for secondary battery comprising the silicon-carbon composite, and a method for producing the silicon-carbon composite.
Abstract:
The present invention relates to an anode active material for a lithium secondary battery, which comprises a core layer comprising a carbon-silicon composite, and a shell layer comprising a conductive material and a carbonaceous material for fixing the conductive material, uniformly coated on a surface of the core layer; and the preparation method thereof.