Four-cavity deposition system for metal carbide coating of fuel cell electrode plate

Abstract

The invention relates to a four-cavity deposition system for a metal carbide coating of a fuel cell electrode plate. The four-cavity deposition system mainly includes a sheet feeding chamber, a transition layer deposition chamber, a metal carbide layer deposition chamber and a sheet outlet chamber in sequence; inlets and outlets of all chambers are provided with chamber valves, and the chamber valves separate every two corresponding chambers on the two sides from each other; a sample transmission device passes through the bottoms of all chambers to form a closed loop; a sample frame is arranged on the sample transmission device and carries a sample to sequentially penetrate through the chambers from left to right. The invention adopts combination of an unbalanced magnetic field and a balanced magnetic field, matching optimization is carried out on the magnetic field mode, a power system and a target base distance, and the bonding performance and stability performance of the metal carbide coating are improved; and continuous small-sized deposition equipment is adopted, a manipulator and other automated equipment are introduced to achieve rapid deposition of the metal carbide coating, can the coating preparation cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of fuel cells and relates to a four-cavity deposition system for metal carbide coatings on fuel cell pole plates. Background technique [0002] With the continuous development of society, the limited reserves of fossil energy such as coal and petroleum and the adverse impact on the ecological environment, clean and renewable energy have been widely used and received great attention. Among them, the fuel cell, as a power generation device that directly generates electrical energy through electrochemical reactions, has attracted the attention of many institutions and personnel, and the proton exchange membrane fuel cell (PEMFC) that uses hydrogen as fuel has been widely used. Applications, the range of applications already includes automobiles, unmanned aerial vehicles, fixed power stations, etc. In the proton exchange membrane fuel cell, the plate is responsible for distributing gas, transferring heat, and s...

AI Technical Summary

Problems solved by technology

In metal carbide coatings, carbon atoms and metal atoms form crystals through strong chemical bonds to have high electrical conductivity, but affected by the deposition environment and deposition process, there will still be a small amount of metal carbide coatings. Metal elements, and these metal elements will escape during the service of the plate, resulting in a decrease in coating performance and a reduction in life

[0005] At present, most of the preparation of metal carbide coatings is concentrated on the research of single equipment, and the production efficiency of single equipment is far lower than that of continuous equipment, and the adjustable parameters are limited, which is not conducive to mass production.

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