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Carbon-Silicon Composite And Anode Active Material For Secondary Battery Comprising The Same

A silicon composite material and composite material technology, applied in battery electrodes, non-aqueous electrolyte battery electrodes, negative electrodes, etc., can solve problems such as difficulty in determining the degree of dispersion

Inactive Publication Date: 2017-03-08
OCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to determine the degree of dispersion

Method used

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  • Carbon-Silicon Composite And Anode Active Material For Secondary Battery Comprising The Same
  • Carbon-Silicon Composite And Anode Active Material For Secondary Battery Comprising The Same
  • Carbon-Silicon Composite And Anode Active Material For Secondary Battery Comprising The Same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0115] A carbon-silicon composite was produced in the same manner as in Example 1 above, except that a carbon-silicon composite having a particle size of 3 μm was selected.

Embodiment 3

[0117] A carbon-silicon composite material was produced in the same manner as in Example 1 above, except that the content of silicon (Si) fine particles was 25% by weight relative to the total content of the carbon-silicon composite material, and a particle size of 6 μm was selected. carbon-silicon composites.

Embodiment 4

[0119] A carbon-silicon composite material was produced in the same manner as in Example 1 above, except that the content of silicon (Si) fine particles was 30% by weight relative to the total content of the carbon-silicon composite material, and a particle size of 5 μm was selected. carbon-silicon composites.

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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.

Description

technical field [0001] The present invention relates to a carbon-silicon composite material and an anode active material for a secondary battery comprising the carbon-silicon composite material, and more particularly, to a carbon-silicon composite material in which silicon (Si)-block copolymer The core-shell particles are uniformly dispersed and embedded in the carbonaceous material. Background technique [0002] Lithium secondary batteries are widely used as power sources of various devices due to their high energy density, high voltage, and high capacity characteristics compared to other secondary batteries. [0003] In particular, for batteries for information technology (IT) equipment or batteries for automobiles, an anode active material having a lithium secondary battery capable of realizing a high capacity is required. [0004] In general, carbon-based materials such as graphite and the like are mainly used as anode active materials for lithium secondary batteries. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/583H01M4/38H01M4/133H01M4/134H01M10/058
CPCH01M4/133H01M4/134H01M4/362H01M4/386H01M4/583H01M10/058H01M4/625H01M4/13H01M4/366H01M2004/027Y02E60/10Y02P70/50
Inventor 河正贤金尧燮郑恩惠
Owner OCI
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