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Carbon-coated aluminum member and method for producing the same

A manufacturing method and carbon coating technology, which are applied in the field of carbon-coated aluminum materials and their manufacturing, can solve the problems of insufficient adhesion between the active material layer and the aluminum material, and the aluminum carbide film and the aluminum material have insufficient adhesion, so as to improve the adhesion. , the effect of improving the adhesion

Active Publication Date: 2011-04-27
TOYO ALUMINIUM KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in these production methods, there is still a problem that the adhesion between the active material layer and the aluminum material and the adhesion between the aluminum carbide film and the aluminum material are still insufficient.

Method used

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  • Carbon-coated aluminum member and method for producing the same
  • Carbon-coated aluminum member and method for producing the same
  • Carbon-coated aluminum member and method for producing the same

Examples

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Embodiment 1～6

[0087] 2 parts by mass of carbon black particles having an average particle diameter of 300 nm as the carbon-containing particles 22, and 1 part by mass of various binders shown in "Binders used in the resin layer formation process" in Table 1 20% by mass of toluene was added to the binder, and this was sufficiently kneaded with a kneader to form a resin layer on the surface of the carbon black particles (resin layer forming step).

[0088] In Examples 1 to 3, the kneaded product containing carbon black particles with a resin layer formed on the surface was uniformly dispersed in the isopropyl group shown in the "solvent used in the carbon-containing particle adhesion process" in Table 1 using a disperser. In the alcohol solution, a coating liquid containing carbon black particles having a solid content of 20% by mass as a coating liquid used in the carbon-containing particle adhesion step was thereby obtained.

[0089] In Examples 4 to 6, the kneaded product containing carbon blac...

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Abstract

Disclosed is a carbon-coated aluminum member wherein adhesion between a carbon-containing layer and an aluminum material as well as adhesion between carbon-containing particles contained in the carbon-containing layer are improved. Also disclosed is a method for producing such a carbon-coated aluminum member. Specifically disclosed is a carbon-coated aluminum member comprising an aluminum foil (1), a carbon-containing layer (2) formed on the surface of the aluminum foil (1), and an intervening layer (3) which contains aluminum carbide and is formed on at least a part of the surface of the aluminum foil (1) between the carbon-containing layer (2) and the aluminum foil (1). The carbon-containing layer (2) contains a plurality of carbon-containing particles (22), and an organic matter layer (23) is formed on the surface of each carbon-containing particle (22). Also specifically disclosed is a method for producing a carbon-coated aluminum member, wherein a resin layer is formed on the surface of each carbon-containing particle (22), then the resin-coated carbon-containing particles are adhered to the surface of an aluminum foil (1), and then the aluminum foil (1) and the resin-coated carbon-containing particles are placed and heated in a space containing a hydrocarbon-containing material.

Description

Technical field [0001] The present invention relates to a carbon-coated aluminum material having the surface of an aluminum material coated with carbon and a manufacturing method thereof, in particular to the carbon-coated aluminum used in the current collectors and electrodes of various capacitors, and the current collectors and electrodes of various batteries Material and its manufacturing method. Background technique [0002] Conventionally, when an aluminum material is used directly as a material of a current collector or an electrode, the oxide film formed on the surface of the aluminum material is passivated, and as a result, there is a problem that the surface conductivity is reduced and the surface is insulated. In order to solve this problem, a method of improving the conductivity of the surface by coating carbon on the surface of the aluminum material has been adopted. [0003] For example, there is a method of forming a carbon film on the surface of an aluminum material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/08H01G9/016H01G9/055H01G9/058H01M4/66H01G11/22H01G11/26H01G11/28H01G11/42H01G11/68
CPCH01M4/75C23C8/02C23C26/00C23C8/04H01M4/66C23C28/00C23C24/08Y02E60/13H01G11/26C23C28/04Y02E60/12H01G9/155H01M4/661H01G11/42H01G9/058C23C8/60C23C12/02H01M4/663H01G11/68H01G9/016H01G11/28H01G11/70Y02E60/10Y10T428/24612Y10T428/25
Inventor 井上英俊中山邦彦足高善也
Owner TOYO ALUMINIUM KK
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