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Method for preparing tubular solid oxide fuel cell

A solid oxide and fuel cell technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve the problems of reduced stack power density, low area power density, and insufficient pores, and achieve a simple and environmentally friendly preparation method. The effect of good mechanical properties and excellent electrochemical properties

Active Publication Date: 2016-12-07
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a major disadvantage of tubular SOFCs is that tubular SOFCs have a lower power density per unit area than plate SOFCs
At present, the design of tubular solid oxide battery stacks mostly adopts single-tube stacking, resulting in a reduction in the power density of the stack per unit volume.
Tubular solid oxide fuel cells require anodes and cathodes with certain mechanical strength and abundant pores, while the anode support prepared by plastic extrusion method often has good mechanical strength, but the production cycle is long, the pores are not rich enough, and the power lower density

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a tubular solid oxide fuel cell, comprising the following steps:

[0038] (1), prepare tubular porous anode support mold: its preparation method comprises the following steps:

[0039] A mold-dipping method is used to prepare a tubular porous anode support mold with one end sealed and the other open. The tubular porous anode support mold is a ceramic anode support mold. The mold preparation method includes the following steps:

[0040] A, according to the weight ratio of calcium sulfate and water is that the ratio of 1:5 gets calcium sulfate and water mixes, stirs and removes air bubble, obtains the calcium sulfate slurry that is about to solidify;

[0041] B, in the calcium sulfate slurry that is about to solidify that one end is inserted in the calcium sulfate slurry that step a gained is the support body that the smooth surface of round bottom has different diameters, keep upright, after calcium sulfate slurry solidifies completely, pull out su...

Embodiment 2

[0055] A method for preparing a tubular solid oxide fuel cell, comprising the following steps:

[0056] (1), prepare tubular porous anode support mold: its preparation method comprises the following steps:

[0057] A mold-dipping method is used to prepare a tubular porous anode support mold with one end sealed and the other open. The tubular porous anode support mold is a ceramic anode support mold. The mold preparation method comprises the following steps:

[0058] A, according to the weight ratio of calcium sulfate and water is that the ratio of 1:10 gets calcium sulfate and water mixes, stirs and removes air bubble, obtains the calcium sulfate slurry that is about to solidify;

[0059] B, in the calcium sulfate slurry that is about to solidify that one end is inserted in the calcium sulfate slurry that step a gained is the support body that the smooth surface of round bottom has different diameters, keep upright, after calcium sulfate slurry solidifies completely, pull out ...

Embodiment 3

[0073] A method for preparing a tubular solid oxide fuel cell, comprising the following steps:

[0074] (1), prepare tubular porous anode support mold: its preparation method comprises the following steps:

[0075] A mold-dipping method is used to prepare a tubular porous anode support mold with one end sealed and the other open. The tubular porous anode support mold is a ceramic anode support mold. The mold preparation method includes the following steps:

[0076] A, according to the weight ratio of calcium sulfate and water, be that the ratio of 1:15 gets calcium sulfate and water mixes, stirs and removes air bubble, obtains the calcium sulfate slurry that is about to solidify;

[0077] B, in the calcium sulfate slurry that is about to solidify that one end is inserted in the calcium sulfate slurry that step a gained is the support body that the surface of round bottom is smooth and has different diameters, keeps upright, after calcium sulfate slurry solidifies completely, p...

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PUM

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Abstract

The invention belongs to the technical field of a solid fuel cell, and in particular relates to a method for preparing a tubular solid oxide fuel cell. The method for preparing the tubular solid oxide fuel cell comprises the following steps of (1) preparing a tubular porous positive electrode support body die; (2) preparing a tubular porous positive electrode support body; (3) uniformly spraying or immersing electrolyte paste on a surface of the tubular porous positive electrode support body; (4) uniformly spraying or immersing functional layer paste on a surface of an electrolyte layer of the tubular porous positive electrode support body; and (5) uniformly spraying or immersing a negative electrode paste on a surface of a functional layer of the tubular porous positive electrode support body. The preparation method has the advantages of simplicity, environmental friendliness and high repeatability, the production cost is reduced, and industrial application is facilitated.

Description

technical field [0001] The invention belongs to the technical field of solid fuel cells, and in particular relates to a method for preparing tubular solid oxide fuel cells. Background technique [0002] A fuel cell is a power generating device that converts the chemical energy of fuel directly into electrical energy. Medium and high temperature solid oxide fuel cell (SOFC for short) is characterized by high power generation efficiency. Combined with a gas turbine to generate electricity, the efficiency is as high as 70%, and the quality of waste heat is high. If the waste heat is used reasonably, its thermal efficiency can reach 80%. above. Pollutants are close to zero emission, which is an ideal power generation system with high efficiency and cleanliness. [0003] At present, there are mainly two types of SOFC structures developed in the world: planar and tubular. The plate-like structure has the advantages of short current channel, higher output current density and pow...

Claims

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Application Information

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IPC IPC(8): H01M8/0271H01M8/0273H01M8/10
CPCH01M8/0271H01M8/0273H01M8/10Y02E60/50Y02P70/50
Inventor 马灿良赵云李思殿
Owner SHANXI UNIV
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