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Anode collector layer slurry and preparation method thereof, support body, solid oxide fuel cell and preparation method thereof

A solid oxide and fuel cell technology, which is applied to fuel cells, fuel cell parts, sealing/supporting devices, etc., can solve the problems of low battery discharge power, increased anode porosity, and shortened battery life. Reduce battery internal resistance, improve discharge performance, and good conductivity

Pending Publication Date: 2022-05-24
浙江氢邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A review of related patents and literature shows that when a flat-tube solid oxide fuel cell operates under reducing gas, the anode current collector layer made of metal oxide is reduced to a single metal substance, resulting in an increase in the porosity of the anode and easy leakage of fuel, resulting in battery failure. shortened lifespan
The existing patents all use perovskite as the main sealing layer, and the conductivity of the material is low, resulting in low battery discharge power

Method used

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  • Anode collector layer slurry and preparation method thereof, support body, solid oxide fuel cell and preparation method thereof

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Experimental program
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preparation example Construction

[0061] A preparation method of anode current collector layer slurry, including the application of any of the above-mentioned battery anode current collector layer slurry,

[0062] Including the following steps: Step S1: adding 3-35% of plasticizer and 3-35% of plasticizer and 0.5-15% dispersant and mixing to obtain a mixture, and the mixture is calcined at 800-1000 ° C to obtain a support;

[0063] Step S2: the anode layer 2 material is arranged on the upper surface of the support body, the anode current collecting sealing material is arranged on the lower surface of the support body, and then sintered at 800-1000° C. for 2 hours; the anode layer 2 is formed on the upper surface of the support body, the support body The anode current collector sealing layer 6 is formed on the lower surface;

[0064] Step S3, yttria-stabilized zirconia is arranged on the upper surface of the anode layer 2, yttria-stabilized zirconia is arranged on the outer periphery of the anode current colle...

Embodiment 1

[0067] Example 1: Nickel-based alloy is used as the current collecting and sealing material, and the support body is manufactured by the extrusion molding method: the liquid raw material is added to the support body powder raw material and mixed to obtain a mixture;

[0068] The components and contents of the anode support powder raw materials are as follows:

[0069] Nickel oxide powder 38.5%

[0070] Yttria Stabilized Zirconia Powder 38.5%

[0071] Pore ​​former 3%

[0072] The components and contents of the liquid raw material are as follows:

[0073] Plasticizer 15%

[0074] Dispersant 5%

[0075] Using the extrusion molding method, the obtained mixed raw materials are used to prepare a support body, and then calcined at 1000° C. to obtain a support body.

[0076] Next, an anode layer 2 and an anode current collecting sealing layer 6 are prepared on the support, the anode layer 2 is located on the upper surface of the support, and the anode current collecting sealing ...

Embodiment 2

[0085] Example 2: A bismuth-doped nickel-based alloy is used as a current collecting and sealing material, and a support body is manufactured by a 3D printing method: liquid raw materials are added to the support body powder raw materials and mixed to obtain a mixture;

[0086] The components and contents of the anode support powder raw materials are as follows:

[0087] Nickel oxide powder 38.5%

[0088] Yttria Stabilized Zirconia Powder 38.5%

[0089] Pore ​​former 3%

[0090] The components and contents of the liquid raw material are as follows:

[0091] Plasticizer 15%

[0092] Dispersant 5%

[0093] Using the 3D printing method, the obtained mixed raw materials were used to prepare a support, which was then calcined at 1000 °C to obtain a support.

[0094] Next, an anode layer 2 and an anode current collecting sealing layer 6 are prepared on the support, the anode layer 2 is located on the upper surface of the support, and the anode current collecting sealing layer 6...

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Abstract

The invention discloses anode collector layer slurry and a preparation method thereof, a support body, a solid oxide fuel cell and a preparation method thereof, and relates to the technical field of power storage unit assembly. Comprising the following steps: step A, weighing corresponding metal elementary substances or multi-component alloys, polyacrylamide and terpilenol according to the mass ratio of the metal elementary substances or the multi-component alloys, the polyacrylamide and the terpilenol, and mixing the metal elementary substances or the multi-component alloys, the polyacrylamide and the terpilenol to obtain a mixed material; b, the mixed material is poured into a grinding tank, zirconium balls are added, the mixture is put into a ball mill to be ground for 10 h, and battery anode collector layer slurry is obtained; wherein the melting point of the corresponding metal elementary substance or multi-component alloy is 600-1300 DEG C, the expansion coefficient is 6-25 * 10 <-6 > / K when the temperature is 25-900 DEG C, and the particle size D50 of the metal powder is 2-30 microns. According to the invention, a multi-component alloy material is adopted to replace a perovskite anode current collection sealing material, so that the compactness of the anode current collection layer is ensured, the requirement of the anode side on sealing is reduced, the conductivity of the current collection sealing layer is improved, the internal resistance of the cell is reduced, and the discharge performance of the fuel cell is improved.

Description

technical field [0001] The present invention relates to the technical field of electric storage unit group devices, in particular to an anode current collector slurry and a preparation method thereof, a support body, a solid oxide fuel cell and a preparation method thereof. Background technique [0002] The flat-tube solid oxide fuel cell is a high-efficiency, non-polluting, all-solid-state power generation device that can adapt to a variety of fuel gases and does not require additional reforming devices. The main structure of the flat tube solid oxide fuel cell structure is that the anode layer is located on the upper surface of the support body, the anode current collector layer is located on the lower surface of the support body, the electrolyte layer includes a first electrolyte layer and a side electrolyte layer, and the first electrolyte layer is located on the surface of the anode layer , the side electrolyte layer is located on the surrounding surface of the anode cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0271H01M8/0282H01M8/0286
CPCH01M8/0271H01M8/0282H01M8/0286Y02E60/50
Inventor 汪征东曹宝华王建新官万兵杨钧
Owner 浙江氢邦科技有限公司