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A method for preparing metal support monomers by co-casting method

A metal support and metal support technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, climate sustainability, etc., can solve the problems of battery performance attenuation, affecting stability, grain growth and coarsening, etc., to achieve Effect of improving binding ability, improving battery performance and stability

Active Publication Date: 2021-11-05
北京思伟特新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing metal supporting monomers by co-casting method, which can solve the problem that the metal supporting monomers prepared by dipping method will grow and coarsen after long-term operation, which will cause battery performance attenuation, technical issues affecting stability

Method used

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  • A method for preparing metal support monomers by co-casting method
  • A method for preparing metal support monomers by co-casting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Slurries for the metal support layer, the fuel electrode layer, the electrolyte layer, and the air electrode layer are prepared.

[0106] Among them, the metal support layer adopts a mixture of Fe-based alloy, Cr-based alloy, and Ni-based alloy, and the mixing ratio is 1:1:1. In the metal support layer slurry, Fe-based alloy, Cr-based alloy, Ni-based alloy 30 parts by weight of the mixture of the alloy, 20 parts by weight of graphite, 1 part by weight of triethanolamine, 1 part by weight of dodecyl mercaptan, and 10 parts by weight of xylene are configured into a slurry, and the metal support layer is cast, and the knife height is controlled at 300 μm.

[0107] Dry for 10 minutes to form a stable metal support layer, and directly cast the fuel electrode layer on the metal support layer. The fuel electrode layer is made of NiO and YSZ mixed composite ceramic powder, 30 parts by weight of composite ceramic powder, 20 parts by weight of graphite, 1 part by weight of triet...

Embodiment 2

[0112] Slurries for the metal support layer, the fuel electrode layer, the electrolyte layer, and the air electrode layer are prepared.

[0113] Among them, the metal support layer adopts a mixture of Fe-based alloy and Cr-based alloy, and the mixing ratio is 1:1. In the metal support layer slurry, the mixture of Fe-based alloy, Cr-based alloy, and Ni-based alloy is 30% Parts by weight, 20 parts by weight of graphite, 1 part by weight of triethanolamine, 1 part by weight of dodecanethiol, and 10 parts by weight of xylene are configured into a slurry, and the metal support layer is cast, and the knife height is controlled at 500 μm.

[0114] Dry for 20 minutes to form a stable metal support layer, and directly cast the fuel electrode layer on the metal support layer. The fuel electrode layer is made of NiO and YSZ mixed composite ceramic powder, 30 parts by weight of composite ceramic powder, 20 parts by weight of graphite, 1 part by weight of triethanolamine, 1 part by weight ...

Embodiment 3

[0119] Slurries for the metal support layer, the fuel electrode layer, the electrolyte layer, and the air electrode layer are prepared.

[0120] Among them, the metal support layer adopts a mixture of Fe-based alloy, Cr-based alloy, and Ni-based alloy, and the mixing ratio is 1:1:1. In the metal support layer slurry, Fe-based alloy, Cr-based alloy, Ni-based alloy 30 parts by weight of the mixture of the three alloys, 20 parts by weight of ammonium oxalate, 1 part by weight of acrylic acid copolymer BYK, 1 part by weight of dodecyl mercaptan, and 10 parts by weight of xylene are configured into a slurry, and the cast metal support layer is controlled. The knife height is 300 μm.

[0121] Dry for 15 minutes to form a stable metal support layer, and cast the fuel electrode layer directly on the metal support layer. The fuel electrode layer is made of NiO and YSZ mixed composite ceramic powder, 30 parts by weight of composite ceramic powder, and 20 parts by weight of ammonium oxal...

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Abstract

The invention provides a method for preparing a metal support monomer by a co-casting method, comprising: configuring the slurry of a metal support layer, a fuel electrode layer, an electrolyte layer, and an air electrode layer; casting the metal support layer through the slurry Forming the metal support layer; casting the fuel electrode layer on the metal support layer through the fuel electrode layer slurry; casting the electrolyte layer on the fuel electrode layer through the electrolyte layer slurry, wherein the electrolyte layer includes a main electrolyte layer and a barrier layer, according to The main electrolyte layer and the barrier layer electrolyte powder are different to determine the casting sequence of the main electrolyte layer and the barrier layer; the air electrode layer is cast on the electrolyte layer through the air electrode layer slurry to obtain the metal support green body; the metal support body green body is Roasting under a preset pressure to obtain a metal support monomer. In the present invention, the metal support body layer, the fuel electrode layer, the electrolyte layer and the air electrode layer are integrally formed, and a dense metal support monomer is prepared under pressure sintering to improve the bonding ability between layers.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a method for preparing metal supporting monomers by a co-casting method. Background technique [0002] With the depletion of fossil fuels and the aggravation of environmental pollution, people urgently need to develop environmentally friendly renewable energy. Hydrogen energy, as a clean, efficient and environmentally friendly renewable energy, has attracted widespread attention. Both Solid Oxide Fuel Cell (SOFC) and Solid Oxide Electrolyse Cells (SOEC) are clean, efficient, and safe. Metal supported-Solid Oxide Cells (MS-SOC for short), due to its simple packaging, low cost and relatively low operating temperature (500-650°C), has become the third-generation solid oxide cell that has attracted worldwide attention. Battery. [0003] In the related art, a metal-supported half-cell is prepared by casting and co-hot pressing, and then the active cathode material and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1286H01M8/1213H01M8/1226H01M8/1231
CPCH01M8/1286H01M8/1213H01M8/1226H01M8/1231H01M2008/1293Y02P70/50Y02E60/50
Inventor 刘亚迪胡浩然
Owner 北京思伟特新能源科技有限公司