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Composite dielectric production process of electronic aluminum foil

An electronic aluminum foil and composite medium technology, applied in the field of energy storage technology, can solve the problems of increasing processing costs, increasing the operating burden of enterprises, and environmental pollution risks.

Inactive Publication Date: 2018-02-23
浙江长兴鑫启元电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will inevitably produce a large amount of waste acid, waste liquid and waste gas, which will bring huge pollution risks to the environment. At the same time, the treatment of the three wastes will also greatly increase the treatment cost of the enterprise and increase the operating burden of the enterprise

Method used

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  • Composite dielectric production process of electronic aluminum foil
  • Composite dielectric production process of electronic aluminum foil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Vacuum coating: A high dielectric constant material is sprayed on the surface of the electronic aluminum foil with a low pressure of 90 μm by molecular beam coating to form a stable film layer. The specific operation steps are: the high dielectric constant material is deposited by molecular beam epitaxy device, at 5.0 x 10 ﹣4 Under the conditions of MPa ultra-vacuum and temperature 200-400°C, the high dielectric constant material is shot to the surface of the electronic aluminum foil in the form of beam molecular flow to form a composite dielectric layer of 100nm-3μm;

[0032] (2) Electrochemical treatment: the vacuum-coated electronic aluminum foil forms a layer of defects that may exist in the stable film layer with Al and Al through electrochemical methods. 2 o 3 Closely bonded composite dielectric layer, thereby increasing the relative permittivity ε r , the specific operation steps are: place the vacuum-coated electronic aluminum foil in a 3-10% aqueous solut...

Embodiment 2

[0035] (1) Vacuum coating: A high dielectric constant material is sprayed on the surface of the electronic aluminum foil with a low pressure of 90 μm by magnetron coating to form a stable film layer. The specific operation steps are: put the high dielectric constant material at 1000-1500 Molded and sintered into blocks under the temperature condition of ℃, at 5.0×10 ﹣4 Under MPa ultra-vacuum and 100-300°C temperature conditions, high-dielectric constant materials are deposited on the surface of electronic aluminum foil by high-frequency sputtering to form a composite dielectric layer of 100nm-2μm;

[0036] (2) Electrochemical treatment: the vacuum-coated electronic aluminum foil forms a layer of defects that may exist in the stable film layer with Al and Al through electrochemical methods. 2 o 3 Closely bonded composite dielectric layer, thereby increasing the relative permittivity ε r , the specific operation steps are: place the vacuum-coated electronic aluminum foil in a ...

Embodiment 3

[0039] (1) Vacuum coating: A high dielectric constant material is sprayed on the surface of the electronic aluminum foil with a medium pressure of 105 μm by molecular beam coating to form a stable film layer. The specific operation steps are: pass the high dielectric constant material through the molecular beam epitaxial device, at 5.0 x 10 ﹣4 Under the conditions of MPa ultra-vacuum and temperature 200-400°C, the high dielectric constant material is shot to the surface of the electronic aluminum foil in the form of beam molecular flow to form a composite dielectric layer of 100nm-3μm;

[0040] (2) Electrochemical treatment: the vacuum-coated electronic aluminum foil forms a layer of defects that may exist in the stable film layer with Al and Al through electrochemical methods. 2 o 3 Closely bonded composite dielectric layer, thereby increasing the relative permittivity ε r , the specific operation steps are: place the vacuum-coated electronic aluminum foil in a 3-10% aqueou...

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Abstract

The invention discloses a production process of an electronic aluminum foil composite medium, comprising (1), vacuum coating: spraying a high dielectric constant material on the surface of the electronic aluminum foil by vacuum coating to form a stable film layer; (2), Electrochemical treatment: Vacuum-coated electronic aluminum foil uses electrochemical methods to form a composite dielectric layer that is closely bonded with Al and Al2O3 to the possible defect points in the stable film layer, thereby increasing the relative permittivity εr. The present invention can reach 100-700 by processing εr through the above method. Compared with εr of conventional aluminum electrolytic capacitors, εr has been greatly improved, thereby greatly improving the capacitance C, and a large amount of waste acid and waste will not be generated in the production process. liquid and exhaust gas.

Description

technical field [0001] The invention belongs to the field of energy storage technology, and in particular relates to a production technology of electronic aluminum foil composite medium. Background technique [0002] Electronic aluminum foil is the key raw material for aluminum electrolytic capacitors and the basic material for electrode foil manufacturing. Aluminum electrolytic capacitors are widely used in household appliances, computers, communication equipment, industrial control, electric vehicles, electric locomotives, and military and aerospace equipment. With the rapid development of electronic technology, aluminum electrolytic capacitors are more widely used. The requirements for miniaturization, chip type, long life and high reliability are more urgent. It is also used in rail transit, flat panel display, solar energy, wind energy battery and other environmental protection and energy saving fields to promote the rapid development of electronic aluminum foil. [...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G9/045
CPCH01G9/0032H01G9/045
Inventor 张继保
Owner 浙江长兴鑫启元电子科技有限公司