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Method for three-dimensionally printing honeycomb-type solid oxide fuel cell with three-dimensional channel

A solid oxide and fuel cell technology, which is applied in solid electrolyte fuel cells, fuel cell components, fuel cells, etc., can solve problems such as high cost, unstable batch performance, and reduced effective area of ​​the membrane to reduce product cost. The impact of quality, the elimination of batch instability, and the effect of saving preparation costs

Active Publication Date: 2016-02-24
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this structure uses the central conductive rod to fix the single cell, which reduces the mass transfer efficiency, so the battery output performance is low
In addition, in the process of assembling a single battery, certain technical means must be used for bonding, fixing, and sealing to form a stack. These technologies are time-consuming, laborious, costly, unstable in batch performance, and highly dependent on labor, which is not conducive to solid oxidation. Industrialization of Biofuel Cells
[0004] Chinese patent CN103349918A and Chinese patent CN101456744 respectively disclose the method for preparing multi-channel ceramic hollow fiber membrane and honeycomb inorganic membrane, but the prepared multi-channel hollow fiber membrane has no fluid channel between tubes, if made into a fuel cell support body, mass transfer The resistance will be large and the effective area of ​​the membrane will be greatly reduced
Three-dimensional printing technology can be used to prepare plastic profiles, metal profiles and ceramic profiles, but the real industrial application has not yet begun, especially in the field of preparation of solid oxide fuel cells has not received attention
[0006] At present, the method of using three-dimensional printing honeycomb solid oxide fuel cells with three-dimensional channels has not been reported

Method used

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  • Method for three-dimensionally printing honeycomb-type solid oxide fuel cell with three-dimensional channel
  • Method for three-dimensionally printing honeycomb-type solid oxide fuel cell with three-dimensional channel
  • Method for three-dimensionally printing honeycomb-type solid oxide fuel cell with three-dimensional channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 300gLSCF (La 0.6 Sr 0.4 co 0.2 Fe 0.8 o 3-δ ) The ceramic cathode powder, 10g of dextrin and spherical graphite are uniformly mixed with a mixer, and placed in a three-dimensional printer raw material box after passing through a 60-mesh sieve. The three-dimensional printer adopts the Z510 ceramic three-dimensional printer of the Zcorp Company of the United States, and uses ug software to draw the three-dimensional solid model structure diagram of the support body, see figure 1 , using a computer-controlled three-dimensional printer to print the LSCF ceramic powder according to the designed three-dimensional solid model structure diagram, and obtain a honeycomb ceramic cathode support body green body with a three-dimensional channel structure. The external dimensions of the model are 4cm in length, width, and height. There are 45 ceramic microtubes in the longitudinal direction to provide the tube-side fluid channels, and 8 channels in the horizontal direction to pro...

Embodiment 2

[0049] 400g of Ni-YSZ ceramic anode powder, 20g of polyvinyl butyral powder and spherical graphite were evenly mixed with a mixer, passed through a 60-mesh sieve and placed in a three-dimensional printer raw material box. The three-dimensional printer adopts the Z510 ceramic three-dimensional printer of Zcorp Company of the United States, and uses the 3Dmax software to draw the three-dimensional solid model structure diagram of the support body, see figure 1 , using a computer-controlled three-dimensional printer to print the Ni-YSZ ceramic powder according to the designed three-dimensional solid model structure diagram, and obtain a honeycomb ceramic anode support body green body with a three-dimensional channel structure. The external dimensions of the model are 4cm in length, width, and height. There are 45 ceramic microtubes in the longitudinal direction to provide the tube-side fluid channels, and 8 channels in the horizontal direction to provide the fluid channels between...

Embodiment 3

[0053] 450gLa 2 NiO 4-δ The ceramic cathode powder and 20 g of starch are evenly mixed by a ball mill, passed through a 60-mesh sieve, and placed in a three-dimensional printer raw material box. The three-dimensional printer adopts Zcorp Z510 ceramic three-dimensional printer of the United States, uses catia software to draw the three-dimensional solid model structure diagram of the support body, and uses the computer to control the three-dimensional printer to print the ceramic powder according to the designed three-dimensional solid model structure diagram to obtain a three-dimensional channel structure The green body of the honeycomb ceramic membrane module. The green body is purged to clean the powder residue on the surface, placed in a programmable temperature-controlled electric furnace, first dried at 85°C for 2 hours, then heated to 500°C at a heating rate of 2°C / min, and kept for 2 hours to remove organic matter in the film. Binder. Then heat it up to 1350°C at a h...

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Abstract

The invention relates to a method for three-dimensionally printing a honeycomb-type solid oxide fuel cell with a three-dimensional channel, and belongs to the technical field of solid oxide fuel cells. According to the method, positive pole ceramic powder or negative pole ceramic powder serves as a raw material, a structure is designed through three-dimensional mapping software, outputting is carried out through a ceramic three-dimensional printer, and a green body of a honeycomb-type positive pole support body or a negative pole support body with a three-dimensional channel structure is printed and prepared with a one-step method; after the green body is sintered, the positive pole support body or the negative pole support body is obtained; an electrolyte layer and a negative pole layer are sequentially deposited on the positive pole support body to form a positive-pole honeycomb-type solid oxide fuel cell with an emulsion impregnation method; an electrolyte layer and a positive pole layer are sequentially deposited on the negative pole support body to form a negative-pole honeycomb-type solid oxide fuel cell with an emulsion impregnation method. According to the method, preparing is efficient, cost is saved, the mass transfer rate is greatly increased, the automation degree is high, and the batch is stable.

Description

technical field [0001] The invention relates to a method for three-dimensionally printing a honeycomb solid oxide fuel cell with three-dimensional channels, and belongs to the technical field of solid oxide fuel cells. Background technique [0002] Solid oxide fuel cell is a medium-high temperature energy conversion device that converts chemical energy into electrical energy. According to the shape of the device, it can be divided into three types: flat plate, tubular, and micro-tubular. According to the type of support, it can be divided into anode support and cathode support. and electrolyte-supported types. Among them, the microtubular solid oxide fuel cell has attracted widespread attention due to its characteristics of easy sealing, high aspect ratio, and rapid temperature rise and fall. Its preparation method is mainly through extrusion molding, phase inversion spinning, etc. The 2mm ceramic support greatly increases the surface area of ​​the solid oxide fuel cell. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/10H01M4/88H01M8/02H01M8/0273B29C67/00B29C67/20
CPCB29C67/00B29C67/20H01M4/88H01M8/02H01M8/0271H01M8/0273H01M8/10Y02E60/50
Inventor 杨乃涛孟秀霞祝敬昌孟波谭小耀
Owner SHANDONG UNIV OF TECH
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