Preparation method of metal connection body surface spinel coating in solid oxide fuel cell

A technology of metal connectors and solid oxides, applied in fuel cells, circuits, electrical components, etc., can solve the problems of unfavorable development and application of solid oxide fuel cells, high cost, etc., and achieve low cost, controllable process, and simple equipment Effect

Inactive Publication Date: 2019-06-07
CHANGAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The current method uses an ECD technique that allows for easy preparation of coatings at lower costs compared to other methods like spraying or printing techniques used previously. This results in faster manufacturing times while maintaining high quality films over larger areas.

Problems solved by technology

This patents describes different ways for improving the durableness and efficiency of connectors used in solid state batteries called lithoferrite ceramics. These improvements aim to reduce costs while maintaining excellent properties like mechanical strength, corrosion resistance, electricity transmission ability, and machined capabilities. Additionally, these modifications may improve upon other characteristics associated with use of this material.

Method used

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  • Preparation method of metal connection body surface spinel coating in solid oxide fuel cell
  • Preparation method of metal connection body surface spinel coating in solid oxide fuel cell
  • Preparation method of metal connection body surface spinel coating in solid oxide fuel cell

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Step 1, prepare the desired rare earth Ce doped NiMn by sol-gel method 2 o 4 Spinel powder material;

[0044] Step 2, prepare suspension, spinel powder loading is 30g L -1 , the content of nuclear power regulator is 0.8mmol·L -1 , the suspension base liquid used is acetylacetone;

[0045] Step 3, carry out surface pretreatment to Crofer 22APU ferritic stainless steel, described surface pretreatment comprises adopting 240#, 400#, 600#, 800# and 1000# SiC washing sandpaper to polish Crofer 22APU stainless steel substrate successively, Subsequent ultrasonic cleaning and drying;

[0046] Step 4, with the Crofer 22APU stainless steel substrate as the cathode, and the Pt sheet as the anode for electrophoretic deposition, the deposition time is 360s, and the deposition voltage is 100V;

[0047] Step 5, sintering the obtained composite coating using a low-temperature stepwise reduction-oxidation sintering process to obtain rare earth-doped NiMn 2 o 4 Spinel coating; the ...

Embodiment 2

[0049] Step 1, prepare the desired rare earth Ce doped NiMn by sol-gel method 2 o 4 Spinel powder material;

[0050] Step 2, prepare suspension, spinel powder loading is 30g L -1 , the content of nuclear power regulator is 1.2mmol·L -1 , the suspension base liquid used is acetylacetone;

[0051] Step 3, carry out surface pretreatment to Crofer 22APU ferritic stainless steel, described surface pretreatment comprises adopting 240#, 400#, 600#, 800# and 1000# SiC washing sandpaper to polish Crofer 22APU stainless steel substrate successively, Subsequent ultrasonic cleaning and drying;

[0052] Step 4, with the Crofer 22APU stainless steel substrate as the cathode, and the Pt sheet as the anode for electrophoretic deposition, the deposition time is 360s, and the deposition voltage is 100V;

[0053] Step 5, sintering the obtained composite coating using a low-temperature stepwise reduction-oxidation sintering process to obtain rare earth-doped NiMn 2 o 4 Spinel coating; the ...

Embodiment 3

[0055] Step 1, prepare the desired rare earth Ce doped NiMn by sol-gel method 2 o 4 Spinel powder material;

[0056] Step 2, prepare suspension, spinel powder loading is 30g L -1 , the content of nuclear power regulator is 0.8mmol·L -1 , the suspension base liquid used is acetylacetone;

[0057] Step 3, carry out surface pretreatment to Crofer 22APU ferritic stainless steel, described surface pretreatment comprises adopting 240#, 400#, 600#, 800# and 1000# SiC washing sandpaper to polish Crofer 22APU stainless steel substrate successively, Subsequent ultrasonic cleaning and drying;

[0058] Step 4, with the Crofer 22APU stainless steel substrate as the cathode, and the Pt sheet as the anode for electrophoretic deposition, the deposition time is 340s, and the deposition voltage is 100V;

[0059] Step 5, sintering the obtained composite coating using a low-temperature stepwise reduction-oxidation sintering process to obtain rare earth-doped NiMn 2 o 4 Spinel coating; the ...

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Abstract

The object of the present invention is to provide a preparation method of a metal connection body surface spinel coating in a solid oxide fuel cell. The method comprises the following steps of: the step 1, adding a spinel powder material and a nuclear power regulator into a suspension liquid base liquid to obtain a suspension liquid; the step 2, taking a metal connection body as an anode, taking Pt plate as a cathode, performing electrophoretic deposition in the suspension liquid obtained in the step 1, and obtaining a deposition coating on the metal connection body, wherein the deposition voltage is in a range of 80-120V; and the step 3, performing sintering for the obtained deposition coating to obtain a metal connection body surface spinel coating. The electrophoretic deposition methodis employed to prepare the coating with low cost; and a low-temperature reduction-oxidation step sintering process is employed to reduce the over oxidation layer thickness while reducing the sinteringtemperature.

Description

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Claims

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Application Information

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Owner CHANGAN UNIV
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