CN111384421A - Five-layer structure single cell, preparation method thereof and prepared product - Google Patents
Five-layer structure single cell, preparation method thereof and prepared product Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8846—Impregnation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a single cell with a five-layer structure, which is a symmetrical structure formed by sequentially overlapping an anode supporting layer, an active anode layer, an electrolyte layer, an active cathode layer and a cathode supporting layer; the electrolyte layer is positioned in the middle, the active anode layer and the active cathode layer are symmetrically clung to two surfaces of the electrolyte layer, the anode supporting layer is clung to the surface of the active anode layer, and the cathode supporting layer is clung to the surface of the active cathode layer. In addition, a preparation method of the five-layer structure single cell and a prepared product are also disclosed. The invention adopts a symmetrical structure of the double-electrode support, the thin electrolyte layer and the active electrode layer, thereby avoiding concentration difference polarization and improving the performance of a single cell; the defects of cracking deformation and the like caused by uneven stress distribution are reduced; and the production cost is reduced, the application range is effectively improved, and the method is suitable for the solid oxide fuel cell of an oxygen ion conductor and a proton conductor.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a single cell with a five-layer structure, a preparation method thereof and a prepared product.
Background
The fuel cell, as a novel clean energy technology, has the advantages of high efficiency, low noise, no pollution and the like. Solid Oxide Fuel Cells (SOFC) are third generation fuel cells following phosphate fuel cells, molten carbonate fuel cells. Besides the advantages of the fuel cell, the fuel cell is not limited by Carnot cycle, the energy conversion efficiency is high, and besides, the fuel cell can also use various different fuels, and has strong practicability. In order to increase power density, a SOFC in a general sense is formed by stacking single cells composed of three layers of an anode, an electrolyte, and a cathode, and converts chemical energy into electrical energy by means of an oxidation-reduction reaction. Anode-supported solid oxide fuel cells, cathode-supported solid oxide fuel cells, and electrolyte-supported solid oxide fuel cells can be classified according to the cell architecture. In any type of frame, the single cells need to have sufficient strength to meet the requirements of stacking, transportation, earthquake resistance and the like in engineering. For both anode-supported and cathode-supported solid oxide fuel cells, the support electrode must have a sufficient thickness to provide structural strength to the entire cell, while the non-support electrode is in the form of a thin film. The structure and thickness difference of the cathode and the anode of the two types of single batteries are great, and concentration difference polarization is easily generated due to different gas diffusion speeds of the two electrodes when the batteries work, so that the performance of the batteries is influenced. In addition, in the preparation process of the single cell, the stress distribution on the surfaces of the two electrodes is uneven, so that the defects of bending, deformation, cracking and the like are easily caused, the yield of products is reduced, and the mass production is difficult. In addition, during structure and performance design, because the components of the non-support electrode are fixed, the non-support electrode cannot be quickly adjusted according to the characteristic conditions of the fuel, the flexibility is insufficient, and the application is limited. For the electrolyte-supported fuel cell, the thickness of the electrolyte layer needs to be greatly increased to meet the strength requirement of the single cell, but the ohmic resistance (internal resistance) of the electrolyte layer is obviously increased due to the increase of the thickness, so that the performance of the single cell is influenced; in addition, the electrolyte layer often contains expensive heavy rare earth elements, and the thickness is increased, which inevitably leads to cost increase and reduces the practicability of the SOFC product.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a single cell with a five-layer structure, which adopts a symmetrical structure of a double-electrode support, a thin electrolyte layer and an active electrode layer to avoid concentration difference polarization and improve the performance of the single cell; the defects of cracking deformation and the like caused by uneven stress distribution are reduced; in addition, the application range is effectively improved while the production cost is reduced. The invention also aims to provide a preparation method of the five-layer structure single cell and a prepared product.
The purpose of the invention is realized by the following technical scheme:
the invention provides a single cell with a five-layer structure, which is a symmetrical structure formed by sequentially overlapping an anode supporting layer (1), an active anode layer (2), an electrolyte layer (3), an active cathode layer (4) and a cathode supporting layer (5); the electrolyte layer (3) is positioned in the middle, the active anode layer (2) and the active cathode layer (4) are symmetrically clung to two surfaces of the electrolyte layer (3), the anode supporting layer (1) is clung to the surface of the active anode layer (2), and the cathode supporting layer (5) is clung to the surface of the active cathode layer (4); the thickness of the electrolyte layer (3) is 5-20 micrometers, the thickness of the active anode layer (2) and the thickness of the active cathode layer (4) are 20-40 micrometers respectively, and the thickness of the anode supporting layer (1) and the thickness of the cathode supporting layer (5) are 120-180 micrometers respectively; the anode support layer (1), the active anode layer (2), the active cathode layer (4) and the cathode support layer (5) are of porous structures and contain electrode active substances.
Furthermore, the active anode layer (2) and the active cathode layer (4) have the porosity of 20-50% and the pore size of 1-10 mu m; the porosity of the anode supporting layer (1) and the porosity of the cathode supporting layer (5) are 30-60%, and the pore size is 5-100 mu m.
The other purpose of the invention is realized by the following technical scheme:
the preparation method of the five-layer structure single cell provided by the invention comprises the following steps:
(1) preparation of the films of the layers
(1-1) preparing an electrolyte film by taking an oxide as a raw material through a tape casting technology;
(1-2) preparing an active anode film and an active cathode film by taking oxides and pore-forming agents as raw materials through a tape casting technology;
(1-3) preparing an anode supporting film and a cathode supporting film by taking oxides and pore-forming agents as raw materials through a tape casting technology;
(2) stacking and integrally pressing the films according to the sequence of anode supporting film-active anode film-electrolyte film-active cathode film-cathode supporting film to obtain a single cell green body with a five-layer structure symmetry;
(3) sintering and curing the cell green body at the temperature of 1300-1400 ℃ to obtain a five-layer structure cell framework formed by overlapping an anode supporting film layer, an active anode film layer, an electrolyte film layer, an active cathode film layer and a cathode supporting film layer;
(4) in the five-layer structure single cell framework, the anode supporting film layer and the active anode film layer are immersed in anode impregnant, the active cathode film layer and the cathode supporting film layer are immersed in cathode impregnant, impregnation and drying are carried out until the adhesion amount of the anode impregnant and the adhesion amount of the cathode impregnant respectively account for 5-20 wt% in the single cell framework, and the five-layer structure single cell composed of the anode supporting layer (1), the active anode layer (2), the electrolyte layer (3), the active cathode layer (4) and the cathode supporting layer (5) is obtained after baking.
In step (1), the oxide of the electrolyte film, the active anode film and the active cathode film is Yttrium Stabilized Zirconia (YSZ), Scandium Stabilized Zirconia (SSZ), Barium Cerate (BCY) and Barium Zirconate (BZY); the oxide of the raw materials of the anode supporting film and the cathode supporting film is a mixture of Yttrium Stabilized Zirconia (YSZ) and lanthanum strontium chromium manganese composite oxide (LSCM), and the lanthanum strontium chromium manganese composite oxide (LSCM) in the mixture accounts for 1-50 vol%.
In the above scheme, the yttrium-stabilized zirconia (YSZ) prepared by the preparation method of the invention is (Y)2O3)x(ZrO2)1-xX is 0.03-0.08; the Scandium Stabilized Zirconia (SSZ) is (Sc)2O3)x(ZrO2)1-xX is 0.08-0.10; the Barium Cerate (BCY) is BaCe1-xYxO3X is 0.1 to 0.3; the Barium Zirconate (BZY) is BaZr1-xYxO3X is 0.1 to 0.3; the lanthanum strontium chromium manganese composite oxide (LSCM) is LaxSr1-xCr0.5Mn0.5O2.25+0.5X，x＝0.5～0.8。
Further, in the step (1-2), the organic pore-forming agent is one or a combination of graphite, resin balls, pollen and yolk powder, and the dosage of the organic pore-forming agent is 5-40 wt% of the oxide; in the step (1-3), the pore-forming agent is one or a combination of graphite, starch, resin balls, pollen and yolk powder, and the usage amount of the pore-forming agent is 6-60 wt% of the oxide. In the step (2), the pressing is carried out under the pressure of 10-100 Mpa.
Further, the anode impregnant and the cathode impregnant in the step (4) of the preparation method of the invention are one or a combination of the following materials: sr2.0Fe1.5Mo0.5O6(SFM)、NiO、GdxCe1-xO2-0.5x(GDC)、La1-ySryMnO2.5-0.5y(LSM)，x＝0.1～0.2、y＝0.2～0.4。
The product prepared by the preparation method of the single cell with the five-layer structure.
The invention has the following beneficial effects:
(1) the five-layer structure single cell has the advantages that the electrolyte layer and the active electrode layer are thin, and the ohmic resistance is small; the double-electrode support is adopted, the concentration difference polarization is small, the specific surface area of an active electrode layer is high, the three-phase reaction interface of the single cell is wide, the efficiency is high, and the performance of the single cell is excellent (the polarization impedance is less than or equal to 0.7 omega cm)2Ohmic impedance is less than or equal to 0.7 omega cm2The maximum power density is more than or equal to 300W/cm2And the strength is more than or equal to 169 Mpa).
(2) The electrolyte layer and the active electrode layer of the single cell with the five-layer structure have the advantages of thin thickness, less material consumption, low cost and high yield.
(3) According to the invention, by adopting the dipping method, the electrode active substance can change the type of the catalytic active substance according to the fuel property, and the fuel adaptability is extremely wide; the single cell framework has strong flexibility and wide application range.
(4) The five-layer structure single cell is a symmetrical structure, stress concentration is not easy to generate in the process of arranging and burning, the influence factors of cracking deformation are reduced, the sintering flatness is good, and the product percent of pass is greatly improved. The solid oxide fuel cell is suitable for oxygen ion conductors and proton conductors.
Drawings
The invention will now be described in further detail with reference to the following examples and the accompanying drawings:
fig. 1 is a schematic structural diagram of a five-layer structure single cell in an embodiment of the invention.
In the figure: an anode support layer 1, an active anode layer 2, an electrolyte layer 3, an active cathode layer 4, a cathode support layer 5
Detailed Description
Fig. 1 shows an embodiment of a five-layer structure single cell and a method for manufacturing the same according to the present invention.
As shown in fig. 1, a five-layer structure single cell in the embodiment of the present invention is a symmetrical structure formed by sequentially stacking an anode support layer 1, an active anode layer 2, an electrolyte layer 3, an active cathode layer 4, and a cathode support layer 5; wherein, the compact electrolyte layer 3 is located in the middle, the active anode layer 2 and the active cathode layer 4 are symmetrically clung to two surfaces of the electrolyte layer 3, the anode supporting layer 1 is clung to the surface of the active anode layer 2, and the cathode supporting layer 5 is clung to the surface of the active cathode layer 4.
Wherein, the thickness of the electrolyte layer 3 is 5-20 μm, the thickness of the active anode layer 2 and the active cathode layer 4 is 20-40 μm, and the thickness of the anode supporting layer 1 and the cathode supporting layer 5 is 120-180 μm. The anode support layer 1, the active anode layer 2, the active cathode layer 4, and the cathode support layer 5 are porous structures, and contain electrode active materials therein.
The porosity of the active anode layer 2 and the active cathode layer 4 is 20-50%, and the pore size is 1-10 μm; the porosity of the anode supporting layer 1 and the cathode supporting layer 5 is 30 to 60%, and the pore size is 5 to 100 μm.
The structural parameters of the five-layer structure single cell of each example of the present invention are shown in table 1.
Table 1 structural parameters of five-layer structure single cells of each example of the present invention
The preparation method of the five-layer structure single cell in the embodiment of the invention comprises the following steps:
(1) preparation of the films of the layers
(1-1) preparing slurry by using an oxide as a raw material, a mixed solution of xylene and butyl acetate as a solvent, polyethylene glycol as a plasticizer, tributyl phosphate as a dispersant and vinyl butyral as a binder, wherein the use amounts of the solvent, the plasticizer, the dispersant and the binder are respectively 40-60 wt%, 1-5 wt%, 1-3 wt% and 6-15 wt% of the oxide, preparing an electrolyte film by a tape casting technology, and the average drying temperature of a tape casting area is 30-70 ℃;
(1-2) preparing slurry by using an oxide and a pore-forming agent as raw materials, water as a solvent, polyethylene glycol as a plasticizer, polyacrylic acid as a dispersing agent and polyvinyl alcohol as a binder; wherein the pore-forming agent is one or a combination of graphite, resin balls, pollen and yolk powder, and the dosage of the pore-forming agent is 5-40 wt% of the oxide; the using amounts of the solvent, the plasticizer, the dispersing agent and the binder are respectively 50-80 wt%, 1-5 wt%, 1-3 wt% and 8-20 wt% of the oxides, the active anode film and the active cathode film are prepared by a tape casting technology, and the average drying temperature of a tape casting area is 30-70 ℃;
(1-3) preparing slurry by using an oxide and a pore-forming agent as raw materials, a mixed solution of xylene and butyl acetate as a solvent, polyethylene glycol as a plasticizer, tributyl phosphate as a dispersing agent and vinyl butyral as a binder; wherein the pore-forming agent is one or a combination of graphite, starch, resin balls, pollen and yolk powder, and the dosage of the pore-forming agent is 6-60 wt% of the oxide; the using amounts of the solvent, the plasticizer, the dispersing agent and the binder are respectively 50-80 wt%, 1-5 wt%, 1-3 wt% and 8-20 wt% of the oxide, and the average drying temperature of casting areas of the anode supporting film and the cathode supporting film is 30-70 ℃ through a tape casting technology;
wherein, the oxide of the raw materials of the electrolyte film, the active anode film and the active cathode film is Yttrium Stabilized Zirconia (YSZ), Scandium Stabilized Zirconia (SSZ), Barium Cerate (BCY) and Barium Zirconate (BZY); the oxide of the raw materials of the anode supporting film and the cathode supporting film is a mixture of Yttrium Stabilized Zirconia (YSZ) and lanthanum strontium chromium manganese composite oxide (LSCM), and the lanthanum strontium chromium manganese composite oxide (LSCM) in the mixture accounts for 1-50 vol%; in particular, the amount of the solvent to be used,
yttrium Stabilized Zirconia (YSZ) is: (Y)2O3)x(ZrO2)1-x，x＝0.03～0.08；
Scandium Stabilized Zirconia (SSZ) is: (Sc)2O3)x(ZrO2)1-x，x＝0.08～0.10；
Barium Cerate (BCY) is: BaCe1-xYxO3，x＝0.1～0.3；
Barium Zirconate (BZY) is: BaZr1-xYxO3，x＝0.1～0.3；
The lanthanum strontium chromium manganese composite oxide (LSCM) is LaxSr1-xCr0.5Mn0.5O2.25+0.5X，x＝0.5～0.8；
The casting pulping process parameters of each example are shown in the table 2;
TABLE 2 doctor blading process parameters for each embodiment of the present invention
(2) Superposing the films according to the sequence of an anode support film, an active anode film, an electrolyte film, an active cathode film and a cathode support film, and integrally pressing under the pressure of 10-100 Mpa to obtain a single cell green body with a five-layer structure symmetry;
(3) sintering and curing the single cell green body at the temperature of 1300-1400 ℃ to obtain a five-layer structure single cell framework formed by overlapping an anode supporting film layer, an active anode film layer, an electrolyte film layer, an active cathode film layer and a cathode supporting film layer;
(4) in the five-layer structure single cell framework, an anode supporting film layer and an active anode film layer are immersed into an anode impregnation material through a negative pressure impregnation technology, an active cathode film layer and a cathode supporting film layer are immersed into a cathode impregnation material to contain catalytic activity and conductive substances, the anode impregnation material adhesion amount and the cathode impregnation material adhesion amount are respectively 5-20 wt% in the single cell framework through repeated impregnation and drying, and then the single cell is baked for 1-5 hours at 500-1000 ℃ in the air atmosphere, so that the five-layer structure single cell consisting of an anode supporting layer 1, an active anode layer 2, an electrolyte layer 3, an active cathode layer 4 and a cathode supporting layer 5 is prepared; wherein the content of the first and second substances,
the anode impregnant and the cathode impregnant are one or the combination of the following materials: sr2.0Fe1.5Mo0.5O6(SFM)、NiO、GdxCe1-xO2-0.5x(GDC)、La1-ySryMnO2.5-0.5y(LSM)，x＝0.1～0.2、y＝0.2～0.4。
The raw material composition and the preparation process parameters in the preparation method of the above embodiment of the present invention are shown in table 3 and table 4, respectively.
TABLE 3 composition of the raw materials in the preparation of the inventive examples
Table 4 preparation process parameters of various embodiments of the present invention
The amount of adhesion is the mass of the single cell frame
The performance indexes of the five-layer structure single cell in each embodiment of the invention are shown in table 5:
table 5 performance index of five-layer structure single cell of each example of the present invention
Claims (9)
1. A five-layer structure single cell is characterized in that: the anode structure is a symmetrical structure formed by sequentially overlapping an anode supporting layer (1), an active anode layer (2), an electrolyte layer (3), an active cathode layer (4) and a cathode supporting layer (5); the electrolyte layer (3) is positioned in the middle, the active anode layer (2) and the active cathode layer (4) are symmetrically clung to two surfaces of the electrolyte layer (3), the anode supporting layer (1) is clung to the surface of the active anode layer (2), and the cathode supporting layer (5) is clung to the surface of the active cathode layer (4); the thickness of the electrolyte layer (3) is 5-20 micrometers, the thickness of the active anode layer (2) and the thickness of the active cathode layer (4) are 20-40 micrometers respectively, and the thickness of the anode supporting layer (1) and the thickness of the cathode supporting layer (5) are 120-180 micrometers respectively; the anode support layer (1), the active anode layer (2), the active cathode layer (4) and the cathode support layer (5) are of porous structures and contain electrode active substances.
2. The five-layer structure cell as claimed in claim 1, characterized in that: the active anode layer (2) and the active cathode layer (4) have the porosity of 20-50% and the pore size of 1-10 mu m; the porosity of the anode supporting layer (1) and the porosity of the cathode supporting layer (5) are 30-60%, and the pore size is 5-100 mu m.
3. A method for producing a five-layer structure single cell as defined in claim 1 or 2, characterized by comprising the steps of:
(1) preparation of the films of the layers
(1-1) preparing an electrolyte film by taking an oxide as a raw material through a tape casting technology;
(1-2) preparing an active anode film and an active cathode film by taking oxides and pore-forming agents as raw materials through a tape casting technology;
(1-3) preparing an anode supporting film and a cathode supporting film by taking oxides and pore-forming agents as raw materials through a tape casting technology;
(2) stacking and integrally pressing the films according to the sequence of anode supporting film-active anode film-electrolyte film-active cathode film-cathode supporting film to obtain a single cell green body with a five-layer structure symmetry;
(3) sintering and curing the cell green body at the temperature of 1300-1400 ℃ to obtain a five-layer structure cell framework formed by overlapping an anode supporting film layer, an active anode film layer, an electrolyte film layer, an active cathode film layer and a cathode supporting film layer;
(4) in the five-layer structure single cell framework, the anode supporting film layer and the active anode film layer are immersed in anode impregnant, the active cathode film layer and the cathode supporting film layer are immersed in cathode impregnant, impregnation and drying are carried out until the adhesion amount of the anode impregnant and the adhesion amount of the cathode impregnant respectively account for 5-20 wt% in the single cell framework, and the five-layer structure single cell composed of the anode supporting layer (1), the active anode layer (2), the electrolyte layer (3), the active cathode layer (4) and the cathode supporting layer (5) is obtained after baking.
4. The method for producing a five-layer structure single cell as claimed in claim 3, characterized in that: in the step (1), the oxides of the raw materials of the electrolyte film, the active anode film and the active cathode film are yttrium-stabilized zirconia, scandium-stabilized zirconia, barium cerate and barium zirconate; the oxide of the raw materials of the anode supporting film and the cathode supporting film is a mixture of yttrium-stabilized zirconia and lanthanum strontium chromium manganese composite oxide, and the lanthanum strontium chromium manganese composite oxide in the mixture accounts for 1-50 vol%.
5. The method for producing a five-layer structure single cell as claimed in claim 4, characterized in that: the yttrium-stabilized zirconia is (Y)2O3)x(ZrO2)1-xX is 0.03-0.08; the scandium-stabilized zirconia is (Sc)2O3)x(ZrO2)1-xX is 0.08-0.10; the barium cerate is BaCe1-xYxO3X is 0.1 to 0.3; the barium zirconate is BaZr1-xYxO3X is 0.1 to 0.3; the lanthanum strontium chromium manganese composite oxide is LaxSr1-xCr0.5Mn0.5O2.25+0.5X，x＝0.5～0.8。
6. The method for producing a five-layer structure single cell as claimed in claim 3, characterized in that: in the step (1-2), the pore-forming agent is one or a combination of graphite, resin balls, pollen and yolk powder, and the dosage of the pore-forming agent is 5-40 wt% of the oxide; in the step (1-3), the pore-forming agent is one or a combination of graphite, starch, resin balls, pollen and yolk powder, and the usage amount of the pore-forming agent is 6-60 wt% of the oxide.
7. The method for producing a five-layer structure single cell as claimed in claim 3, characterized in that: and (3) pressing under the pressure of 10-100 Mpa in the step (2).
8. The method for producing a five-layer structure single cell as claimed in claim 3, characterized in that: the anode impregnant and the cathode impregnant in the step (4) are one or a combination of the following materials: sr2.0Fe1.5Mo0.5O6、NiO、GdxCe1-xO2-0.5x、La1-ySryMnO2.5-0.5y，x＝0.1～0.2、y＝0.2～0.4。
9. A product obtained by the production method of a five-layer structure single cell as claimed in any one of claims 3 to 8.
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| CN112886042A (en) * | 2021-01-29 | 2021-06-01 | 郑州大学 | Electrolyte structure and method for improving long-term stability of solid oxide fuel cell by using same |
| CN113258111A (en) * | 2021-06-30 | 2021-08-13 | 中国矿业大学(北京) | Zirconium-based anode-supported solid oxide battery without isolation layer |
| CN113745617A (en) * | 2021-09-10 | 2021-12-03 | 广东石油化工学院 | Novel double-sheet integrated SOFC cell unit, manufacturing process and cell stack |
| CN114044673A (en) * | 2021-11-22 | 2022-02-15 | 南京理工大学 | Method for preparing ceramic composite membrane of proton conduction type solid oxide pool by water-based tape casting |
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| CN103840185A (en) * | 2012-11-26 | 2014-06-04 | 中国科学院上海硅酸盐研究所 | Solid oxide fuel cell containing quasi-symmetric composite membrane electrode and preparation method thereof |
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