Silicon/carbon composite, silicon alloy/carbon composite, and methods for producing the same

A technology of carbon composites and silicon alloys, which is applied in the direction of carbon silicon compound conductors, hybrid/electric double layer capacitors, hybrid capacitors, etc., can solve problems such as non-coating, and achieve excellent charge-discharge cycle characteristics.

Inactive Publication Date: 2016-05-04
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, commercially available CNFs cannot be coated with silicon at a uniform thickness (for example, see Non-Patent Documents 1 and 2)

Method used

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  • Silicon/carbon composite, silicon alloy/carbon composite, and methods for producing the same
  • Silicon/carbon composite, silicon alloy/carbon composite, and methods for producing the same
  • Silicon/carbon composite, silicon alloy/carbon composite, and methods for producing the same

Examples

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Embodiment Construction

[0089] Exemplary embodiments of the present invention are described in detail below. It should be noted that the present invention is not limited to the following exemplary embodiments. It should be understood that the present invention includes various modifications that may be made to the following exemplary embodiments without departing from the scope of the present invention.

[0090] 1. Methods for preparing silicon / carbon composites and silicon alloy / carbon composites

[0091] A method of preparing a silicon / carbon composite and a silicon alloy / carbon composite according to an embodiment of the present invention forms a CVD film on a surface of a conductive carbon material using a CVD film forming apparatus. The structure of a CVD thin film forming apparatus usable in connection with an embodiment of the present invention, and a method of producing a silicon / carbon composite and a silicon alloy / carbon composite according to an embodiment of the present invention are seq...

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Abstract

A silicon / carbon composite or a silicon alloy / carbon composite is formed with a homogeneous silicon-containing thin film or silicon-containing alloy thin film on the surface of a conductive carbon material, where the composite may be used for a large-capacity electrical storage device when used as a negative electrode material for forming an electrical storage device negative electrode, and exhibits excellent charge-discharge cycle characteristics. A carbon-containing thin film is formed on a surface of a conductive carbon material by chemical vapor deposition (CVD) that utilizes a carbon-containing gas and a silicon-containing thin film or a silicon-containing alloy thin film is formed on the conductive carbon material by chemical vapor deposition (CVD) that utilizes a silicon-containing gas alone, or utilizes a silicon-containing gas and a carbon-containing gas.

Description

technical field [0001] The present invention relates to a silicon / carbon composite (silicon-carbon composite), a silicon alloy / carbon composite (silicon alloy-carbon composite) and a preparation method thereof. More specifically, the present invention relates to a silicon / carbon composite in which a uniform silicon-containing thin film is formed on the surface of a conductive carbon material, a silicon alloy / carbon composite in which a uniform silicon-containing alloy thin film is formed on the surface of a conductive carbon material, and preparation thereof method. Background technique [0002] In recent years, high-voltage electric storage devices with high energy density have been desired as power sources for driving electronic devices. Lithium ion batteries, lithium ion capacitors, and the like are expected as the electric storage device. [0003] The use of materials with high lithium sorption capacity to achieve the output and energy density improvements required for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/133H01M4/134H01M4/1393H01M4/1395H01G11/32H01G11/86
CPCH01G11/32H01G11/86H01M4/133H01M4/134H01M4/1393H01M4/1395B82Y40/00C23C16/24C23C16/26C23C28/04H01B1/04H01G11/06H01G11/38H01G11/42H01G11/50H01M4/136H01M4/362H01M4/386H01M4/587Y02E60/10Y02E60/13
Inventor A·杜蒙特P·吉奈特大窪清吾
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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