Preparation method of corrosion-resistance and high-electroconductibility composite coating for electrode

A composite coating and conductivity technology is applied in the field of preparation of composite coatings for electrodes, which can solve the problems of demanding high-temperature furnace performance and vacuum degree, difficult to prepare composite electrode materials with titanium oxide film wrapping layer, complicated processes, etc. Achieve the effects of good solvent resistance, improved current density, and enhanced film adhesion.

Active Publication Date: 2019-03-01
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Titanium oxide electrode is currently prepared by sintering method, which is prepared by sintering titanium dioxide powder and titanium hydride powder or titanium dioxide powder titanium. The process is complicated and the vacuum degree of high temperature furnace is strict.
The sintering method can prepare bulk titanium oxide, and then process the shape of the electrode. It is difficult to prepare the composite electrode material of the titanium oxide film coating layer by the sintering method.

Method used

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  • Preparation method of corrosion-resistance and high-electroconductibility composite coating for electrode

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Experimental program
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Effect test

Embodiment 1

[0019] A method for preparing a composite coating for an electrode with corrosion resistance and strong conductivity. The electrode is a Cu alloy electrode. The composite coating includes a Ti film and a titanium oxide coating film sequentially plated on the surface of the Cu alloy electrode, replacing part of the whole The sintered titanium peroxide electrode, due to the extremely thin thickness of the composite coating, greatly reduces the amount of titanium peroxide used; the specific steps are as follows:

[0020] (1) Take the Cu alloy electrode, put it into a mixture of acetone and alcohol, ultrasonically clean it for 10 minutes, and perform deoxidation and impurity removal. Since the organic matter is decomposed into O 2 、H 2 Small molecules such as O and CO are easy to introduce oxygen, and the ultrasonic method can remove oil and impurities from the Cu electrode substrate and prevent the decomposition of organic matter;

[0021] (2) Weigh titanium suboxide powder and ...

Embodiment 2

[0025] A method for preparing a composite coating for an electrode with corrosion resistance and strong conductivity. The electrode is a Cu alloy electrode. The composite coating includes a Ti film and a titanium oxide coating film sequentially plated on the surface of the Cu alloy electrode, replacing part of the whole The sintered titanium peroxide electrode, due to the extremely thin thickness of the composite coating, is 3 μm, which greatly reduces the amount of titanium peroxide used; the specific steps are as follows:

[0026] (1) Take the Cu alloy electrode, put it into a mixture of acetone and alcohol, ultrasonically clean it for 8 minutes, and perform deoxidation and impurity removal. Since the organic matter is decomposed into O 2 、H 2 Small molecules such as O and CO are easy to introduce oxygen, and the ultrasonic method can remove oil and impurities from the Cu electrode substrate and prevent the decomposition of organic matter;

[0027] (2) Weigh titanium suboxi...

Embodiment 3

[0031] A method for preparing a composite coating for an electrode with corrosion resistance and strong conductivity. The electrode is a Cu alloy electrode. The composite coating includes a Ti film and a titanium oxide coating film sequentially plated on the surface of the Cu alloy electrode, replacing part of the whole The sintered titanium peroxide electrode, due to the extremely thin thickness of the composite coating, is 2 μm, which greatly reduces the amount of titanium peroxide used; the specific steps are as follows:

[0032] (1) Take the Cu alloy electrode, put it into a mixture of acetone and alcohol, ultrasonically clean it for 8 minutes, and perform deoxidation and impurity removal. Since the organic matter is decomposed into O 2 、H 2 Small molecules such as O and CO are easy to introduce oxygen, and the ultrasonic method can remove oil and impurities from the Cu electrode substrate and prevent the decomposition of organic matter;

[0033] (2) Weigh titanium suboxi...

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Abstract

The invention relates to a preparation method of a corrosion-resistance and high-electroconductibility composite coating for an electrode. The electrode is a Cu alloy electrode, and the composite coating comprises a Ti thin film and a titanium oxide coating thin film which coat the surface of the Cu alloy electrode in sequence. The method comprises the following specific steps that the Cu alloy electrode is taken, deoxidized and subjected to impurity removal; titanium oxide powder and Ti powder are weighed according to the weight ratio of 98:2-99:1, mixed, then put into a sintering furnace andsintered into composite ceramic blocks, and a composite target material is prepared; a magnetron sputtering coating machine is used for making the surface of the Cu alloy electrode coated with the Tithin film, and the thickness of the Ti thin film is 40-100 nm; the magnetron sputtering coating machine is used for making the surface of the Ti thin film coated with the titanium oxide thin film, and the thickness of the titanium oxide thin film is 2-5 microns. According to the preparation method, the surface of the Cu alloy material is coated with the Ti coating and the titanium oxide coating,the service life of the Cu alloy material is prolonged, the material cost is lowered, and accordingly the electrode material has high corrosion resistance and electroconductibility.

Description

technical field [0001] The invention relates to the technical field of material protection, in particular to a method for preparing a corrosion-resistant and highly conductive electrode composite coating. Background technique [0002] With the advent of the era of industrial intelligence, intelligent electric drive devices are an important supporting part of industrialization. In the manufacture of electric drive devices, electrode materials are an indispensable part, which plays the role of transmitting current and connecting lines. In the electrochemical reactor, the electrode is the heart, and the electrode is the place of electrochemical reaction. The change of the potential of the electrode restricts the transfer and reaction of electrons. Electrode materials are prone to corrosion in a highly active atmosphere. Corrosion will destroy the electrode protective layer and electrode materials. Corrosion materials will reduce surface resistance and increase friction, which w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/16C23C14/08
CPCC23C14/083C23C14/165C23C14/35
Inventor 倪增磊高志廷
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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