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Fuel cell composite nano-coating and coating method thereof

A nano-coating and fuel cell technology, applied in the direction of metal material coating process, coating, sputtering plating, etc., can solve the problems of many defects in the film and the lack of better corrosion resistance of the plate, so as to reduce the Effects of deposition time, avoidance of void defects, and strengthening of bonding force

Inactive Publication Date: 2018-05-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of film has many defects and does not improve the corrosion resistance of the plate.

Method used

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  • Fuel cell composite nano-coating and coating method thereof
  • Fuel cell composite nano-coating and coating method thereof
  • Fuel cell composite nano-coating and coating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Effect of Multi-arc Ion Plating on Preparation of TiCx Amorphous Carbon Composite Coatings for Fuel Cell Plates

[0025] (1) Surface pretreatment: After cleaning the stainless steel metal plate with alkali solution and acid solution, clean it with deionized water, and then place it in absolute ethanol, acetone, and absolute ethanol for ultrasonic vibration treatment, Remove the oil on the surface of the metal plate to obtain a clean metal plate;

[0026] (2) Put the cleaned metal plate into the chamber of the multi-arc ion plating furnace, and evacuate it to less than 3×10 -5 torr, filled with argon, the working pressure is kept at 4×10 -4 torr, the base bias voltage of the metal plate is -800V, the ion source is turned on for ion bombardment to remove the passivation layer of the substrate, the ion plating sputtering cleaning process takes 30 minutes, the plate is hung on the rotating support, and the support speed is 4r / min;

[0027] (3) Control the base bias voltag...

Embodiment 2

[0031] Preparation of chromium carbide amorphous carbon composite coatings for fuel cell plates by multi-arc ion plating

[0032](1) Surface pretreatment: After cleaning the stainless steel metal plate with alkali solution and acid solution, clean it with deionized water, and then place it in absolute ethanol, acetone, and absolute ethanol for ultrasonic vibration treatment, Remove the oil on the surface of the metal plate to obtain a clean metal plate;

[0033] (2) Put the cleaned metal plate into the chamber of the multi-arc ion plating furnace, and evacuate it to less than 3×10 -5 torr, filled with argon, the working pressure is kept at 4×10 -4 torr, the base bias voltage of the metal plate is -800V, the ion source is turned on for ion bombardment to remove the passivation layer of the substrate, the ion plating sputtering cleaning process takes 30 minutes, the plate is hung on the rotating support, and the support speed is 4r / min;

[0034] (3) Control the base bias volta...

Embodiment 3

[0038] Preparation of Chromium Carbide Amorphous Carbon Composite Coatings for Fuel Cell Plates by Multi-arc Ion Plating

[0039] (1) Surface pretreatment: After cleaning the stainless steel metal plate with alkali solution and acid solution, clean it with deionized water, and then place it in absolute ethanol, acetone, and absolute ethanol for ultrasonic vibration treatment, Remove the oil on the surface of the metal plate to obtain a clean metal plate;

[0040] (2) Put the cleaned metal plate into the chamber of the multi-arc ion plating furnace, and evacuate it to less than 3×10 -5 torr, filled with argon, the working pressure is kept at 4×10 -4 torr, the base bias voltage of the metal plate is -800V, the ion source is turned on for ion bombardment to remove the passivation layer of the substrate, the ion plating sputtering cleaning process takes 30 minutes, the plate is hung on the rotating support, and the support speed is 4r / min;

[0041] (3) Control the base bias volt...

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Abstract

The invention relates to a fuel cell composite nano-coating and a coating method thereof. The composite nano-coating is an amorphous carbon coating inlaid with metal carbide, and is produced through fuel cell metal electrode plate surface pretreatment, composite nano-coating deposition and other steps. Compared with coatings in the prior art, the fuel cell composite nano-coating can improve the ionization rate in order to increase the carbide formation probability, improve the bombardment of particles to a matrix material, enhance the bonding force and the compactness of a film substrate and avoid cracks, through holes and other defects, still has good electric conductivity, and can meet use requirements of a fuel cell metal electrode plate.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a carbide-amorphous carbon composite nano-coating on a metal plate of a fuel cell and a preparation method thereof by multi-arc ion plating. Background technique [0002] A fuel cell is a fast-starting, high-efficiency, environmentally friendly power generation device that converts the chemical energy of fuel directly into electrical energy. It will be widely used in transportation, electronics, and national defense in the near future. Proton exchange membrane fuel cells include electrodes. Electrolyte diaphragm, bipolar plate, the main component of gas diffusion layer The plate is one of the key components of the fuel cell, mainly supporting the membrane electrode, distributing the reaction gas, collecting current, separating the oxidant and reducing agent, conducting heat, and discharging products The role of water. Fuel cells operate in a strongly acidic environment with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/32C23C14/06
CPCC23C14/325C23C14/0021C23C14/0605C23C14/0635
Inventor 彭林法车聚易培云毕飞飞来新民
Owner SHANGHAI JIAO TONG UNIV
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