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Anode/electrolyte half-cell, anode-supported solid oxide fuel cell and manufacturing method thereof

An anode support and electrolyte technology, applied in solid electrolyte fuel cells, fuel cell components, battery electrodes, etc., can solve the problems that hinder the rapid development of SOFC, the long-term stability is difficult to guarantee, and the battery manufacturing cost is high, so as to achieve excellent structural stability performance, improve electrochemical performance, and reduce the effect of polarization resistance

Pending Publication Date: 2022-02-25
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has brought many problems, such as: it is difficult to match the thermal expansion rate of different materials, it is difficult to ensure the long-term stability of each component at high temperature, and the battery manufacturing cost is high. These problems are hindering the rapid development of SOFC.

Method used

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  • Anode/electrolyte half-cell, anode-supported solid oxide fuel cell and manufacturing method thereof
  • Anode/electrolyte half-cell, anode-supported solid oxide fuel cell and manufacturing method thereof
  • Anode/electrolyte half-cell, anode-supported solid oxide fuel cell and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0087] This embodiment provides an anode / electrolyte half-cell, and the schematic diagram of the product obtained in each step in the manufacturing method is as follows figure 1 shown, from figure 1 It can be seen that the preparation method includes the following specific steps:

[0088] Step (1): Prepare NiO-YSZ anode support casting sheet by casting method:

[0089] Weigh 6g of NiO, 4g of YSZ powder, 0.6g of PMMA and 0.05g of triethanolamine and dissolve them in a mixed solvent of 100g of ethanol and xylene, and mill the resulting mixture on a high-energy ball mill for 24 hours. After mixing evenly, add 0.2 g of polyvinyl butyral, 0.2 g of polymethyl acrylate and 0.5 g of ethyl cellulose to the resulting slurry, and continue ball milling for 12 hours. Subsequently, the mixed slurry is placed in a vacuum chamber for vacuum treatment to remove air bubbles in the slurry. Finally, the slurry is cast onto a polyester film, and after drying at room temperature, a NiO-YSZ anode...

Embodiment 2

[0100] This embodiment provides an anode / electrolyte half-cell, and its manufacturing method includes the following specific steps:

[0101] Step (1): Prepare NiO-YSZ anode support casting sheet by casting method:

[0102] Weigh 6g of NiO, 4g of YSZ powder, 0.6g of PMMA and 0.05g of triethanolamine and dissolve them in a mixed solvent of 100g of ethanol and xylene, and mill the resulting mixture on a high-energy ball mill for 24 hours. After mixing evenly, add 0.2 g of polyvinyl butyral, 0.2 g of polymethyl acrylate and 0.5 g of ethyl cellulose to the resulting slurry, and continue ball milling for 12 hours. Subsequently, the mixed slurry is placed in a vacuum chamber for vacuum treatment to remove air bubbles in the slurry. Finally, the slurry is cast onto a polyester film, and after drying at room temperature, a NiO-YSZ anode support casting sheet is obtained, and the thickness of the NiO-YSZ anode support casting sheet is 5 mm;

[0103] Step (2): Perform micro-processing ...

Embodiment 3

[0113] This embodiment provides an anode / electrolyte half-cell, and its manufacturing method includes the following specific steps:

[0114] Step (1): Prepare NiO-YSZ anode support casting sheet by casting method:

[0115] Weigh 6g of NiO, 4g of YSZ powder, 0.6g of PMMA and 0.05g of triethanolamine and dissolve them in a mixed solvent of 100g of ethanol and xylene, and mill the resulting mixture on a high-energy ball mill for 24 hours. After mixing evenly, add 0.2g polyvinyl butyral, 0.2g polymethyl acrylate and 0.5g ethyl cellulose to the slurry, and continue ball milling for 12 hours. Subsequently, the mixed slurry is placed in a vacuum chamber for vacuum treatment to remove air bubbles in the slurry. Finally, the slurry was cast onto a polyester film, and dried at room temperature to obtain a NiO-YSZ anode support casting sheet, and the thickness of the NiO-YSZ anode support casting sheet was 5mm;

[0116] Step (2): Perform micro-processing on one side of the NiO-YSZ anod...

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Abstract

The invention provides an anode / electrolyte half-cell, an anode-supported solid oxide fuel cell and a manufacturing method thereof. The manufacturing method of the anode / electrolyte half-cell comprises the following steps: producing a NiO-YSZ anode support body casting sheet; carrying out micromachining treatment on the surface of one side of the NiO-YSZ anode support body casting sheet to form a special orthogonal net-shaped structure on the surface of the NiO-YSZ anode support body casting sheet; pre-sintering the treated NiO-YSZ anode support body casting sheet; coating a nano powder slurry on the surface of the pre-sintered anode support body, and drying to form an anode functional layer; and coating the YSZ electrolyte layer on the anode functional layer and then sintering at a high temperature. The anode-supported solid oxide fuel cell comprises an anode / electrolyte half cell and an LSM-YSZ composite cathode layer coated on the surface of a YSZ electrolyte layer of the anode / electrolyte half-cell. The anode-supported solid oxide fuel cell has excellent structural stability, activity and electrochemical performance.

Description

technical field [0001] The invention relates to an anode / electrolyte half cell, an anode-supported solid oxide fuel cell and a manufacturing method thereof, and belongs to the technical field of solid oxide fuel cells. Background technique [0002] Solid oxide fuel cell (SOFC) is an energy conversion device that can directly convert the chemical energy of fuel (hydrogen, methane and other combustible gases) into electrical energy. It has the advantages of strong fuel applicability, high energy conversion efficiency, and low environmental pollution. . However, conventional SOFCs need to operate at high temperatures (∼800 °C) in order to ensure a sufficiently high ionic conductivity of the solid electrolyte. This brings many problems, such as: it is difficult to match the thermal expansion rate of different materials, it is difficult to ensure the long-term stability of each component at high temperature, and the battery manufacturing cost is high. These problems are hinderin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M8/02H01M8/10
CPCH01M8/02H01M4/88H01M4/8885H01M8/10Y02E60/50Y02P70/50
Inventor 蔡桂凡林少雄杨茂萍
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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