Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-corrosion structure and fuel cell comprising the anti-corrosion structure

A technology of anti-corrosion and anti-corrosion layer, which is applied in the direction of fuel cells, fuel cell parts, structural parts, etc., and can solve problems such as poor bonding strength between the aluminum substrate and the anti-corrosion layer, peeling off of the coating, and high cost

Active Publication Date: 2022-01-04
IND TECH RES INST
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the stainless steel bipolar plate has high corrosion resistance, it has the disadvantages that the weight cannot be reduced and the cost is too expensive.
Although the aluminum bipolar plate has the advantages of light weight, high strength, and low cost, the bonding strength between the aluminum substrate and the anti-corrosion layer is not good, and the plating layer is prone to peeling off

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-corrosion structure and fuel cell comprising the anti-corrosion structure
  • Anti-corrosion structure and fuel cell comprising the anti-corrosion structure
  • Anti-corrosion structure and fuel cell comprising the anti-corrosion structure

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0037] 21.2 grams of titanium (Ti), 26.1 grams of nickel (Ni), and 52.7 grams of tin (Sn) were respectively placed in a high-temperature furnace for a high-temperature melting process to obtain a titanium-nickel-tin alloy bulk material. Next, an annealing process is performed on the titanium-nickel-tin bulk material, wherein the annealing condition is maintained at 1050° C. for 24 hours, and then maintained at 900° C. for 240 hours. Next, the annealed titanium-nickel-tin alloy material is first ball milled to obtain alloy powder, and then the alloy powder is subjected to hot compression molding to obtain a titanium-nickel-tin (TiNiSn) circular sheet with a thickness of about 1 mm (radius approx. is 1cm).

[0038] The titanium-nickel-tin (TiNiSn) sheet is further cut into an area of ​​0.9cm 2 The material was placed in a corrosion solution (0.5M sulfuric acid) for corrosion resistance testing, and the corrosion current and corrosion density of the titanium-nickel-tin sheet wer...

preparation example 2

[0047] 33.96 grams of zirconium (Zr), 21.85 grams of nickel (Ni), and 44.19 grams of tin (Sn) were respectively placed in a high-temperature furnace for a high-temperature melting process to obtain a zirconium-nickel-tin alloy block. Next, an annealing process is performed on the bulk material of ZrNiSn, wherein the annealing condition is maintained at 1050° C. for 24 hours, and then maintained at 900° C. for 240 hours. Next, the annealed zirconium-nickel-tin alloy material is first ball-milled to obtain alloy powder, and then the alloy powder is subjected to hot-compression molding to obtain a zirconium-nickel-tin (ZrNiSn) circular sheet with a thickness of about 1 mm (radius approx. is 1cm).

preparation example 3

[0049] 50.15 grams of hafnium (Hf), 16.49 grams of nickel (Ni), and 33.36 grams of tin (Sn) were respectively placed in a high-temperature furnace for a high-temperature melting process to obtain a hafnium-nickel-tin alloy bulk. Next, an annealing process is performed on the HfNi-Sn bulk material, wherein the annealing condition is maintained at 1050° C. for 24 hours, and then maintained at 900° C. for 240 hours. Next, the annealed hafnium-nickel-tin alloy material is first ball milled to obtain alloy powder, and then the alloy powder is subjected to hot compression molding to obtain a hafnium-nickel-tin (HfNiSn) circular sheet with a thickness of about 1 mm (radius approx. is 1cm).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an anti-corrosion structure and a fuel cell comprising the anti-corrosion structure. The anti-corrosion structure includes: an aluminum layer; a first anti-corrosion layer, wherein the first anti-corrosion layer can be a nickel-tin alloy layer; and an intermediary layer can be located between the aluminum layer and the first anti-corrosion layer. In the middle of the corrosion layer, the intermediary layer can be a nickel-tin-aluminum alloy layer.

Description

technical field [0001] The invention relates to an anti-corrosion structure and a fuel cell comprising the anti-corrosion structure. Background technique [0002] A fuel cell is a high-efficiency energy conversion device that supplies fuel to its anode and supplies oxidant to its cathode to convert the chemical energy of the fuel into electrical energy through an electrochemical reaction. [0003] The bipolar plate is one of the key components of the fuel cell. Its main function is to separate the fuel and the air to avoid the danger of the two mixing and burning. Although the stainless steel bipolar plate has high corrosion resistance, it has disadvantages such as the weight cannot be reduced and the cost is too high. Although the aluminum bipolar plate has the advantages of light weight, high strength, and low cost, the bonding strength between the aluminum substrate and the anti-corrosion layer is not good, and the plating layer is prone to peeling off. [0004] Therefo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86
CPCH01M4/8657C22C13/00C22C14/00C22C19/03H01M8/0206C23C10/28C22C16/00C22C21/00C22C27/00C22C30/04C23C28/021H01M8/0208H01M8/0228Y02E60/50
Inventor 许嘉政朱旭山
Owner IND TECH RES INST