WO2018034489A1 - 평판형 고체 산화물 연료전지 - Google Patents
평판형 고체 산화물 연료전지 Download PDFInfo
- Publication number
- WO2018034489A1 WO2018034489A1 PCT/KR2017/008898 KR2017008898W WO2018034489A1 WO 2018034489 A1 WO2018034489 A1 WO 2018034489A1 KR 2017008898 W KR2017008898 W KR 2017008898W WO 2018034489 A1 WO2018034489 A1 WO 2018034489A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solid oxide
- fuel cell
- anode
- air
- hole
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 116
- 239000007787 solid Substances 0.000 title claims abstract description 57
- 239000010410 layer Substances 0.000 claims description 57
- 239000003792 electrolyte Substances 0.000 claims description 42
- 239000000565 sealant Substances 0.000 claims description 33
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 25
- 239000011247 coating layer Substances 0.000 claims description 21
- 239000011810 insulating material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 11
- 239000002737 fuel gas Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 8
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 7
- 238000003618 dip coating Methods 0.000 claims description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 7
- 229910021526 gadolinium-doped ceria Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000012495 reaction gas Substances 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- -1 oxygen ions Chemical class 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910002084 calcia-stabilized zirconia Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- H01M8/1226—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 characterised by the supporting layer
-
- 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
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
-
- 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
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8892—Impregnation or coating of the catalyst layer, e.g. by an ionomer
-
- 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
- H01M8/002—Shape, form of a fuel cell
- H01M8/006—Flat
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- 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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
-
- 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
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2432—Grouping of unit cells of planar configuration
-
- 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
Definitions
- the present invention relates to a planar solid oxide fuel cell, and more particularly, through-holes through which fuel and air can enter and exit the fuel electrode can be omitted so that the window frame can be omitted and the unit cell can be simplified. According to the present invention, a thinner and lighter plate-type solid oxide fuel cell is provided.
- a fuel cell is a device that directly produces electricity through an electrochemical reaction between hydrogen and oxygen in the air. It is an environmentally friendly, energy efficient, high value-added energy source through technology development.
- the solid oxide fuel cell, the third generation fuel cell does not require a complicated external reforming system as compared to other fuel cells, does not use precious metal electrode catalysts such as platinum, and does not cause corrosion problems due to liquid electrolyte.
- precious metal electrode catalysts such as platinum
- Various operational problems in the battery can be minimized, and the operation temperature can be maintained through proper insulation during high temperature operation, and various fuels can be used.
- the solid oxide fuel cell is divided into a plate type and a cylindrical type according to the unit cell type.
- the flat type solid oxide fuel cell includes an electrolyte support type solid oxide fuel cell, a cathode support type solid oxide fuel cell, and a porous support type solid oxide fuel. It can be divided into batteries.
- Cylindrical solid oxide fuel cells have the advantages of easy sealing of unit cells constituting the stack, high resistance to thermal stress, and high stack strength due to the high mechanical strength of the stack. There is a problem that requires a process.
- the electrolyte-supported solid oxide fuel cell has a thick electrolyte layer (approximately 200 ⁇ m thick), it exhibits high sheet resistance of the electrolyte layer, and thus requires a high operating temperature. As it is additionally used, it is more complicated in manufacturing, and since the battery is constructed on the same support, problems in electrical connection may occur.
- the weight and volume are increased due to the window frame configured in the planar solid oxide fuel cell, and thus there is a problem in that the fuel cell is further processed. Since the contact between the window frame, the unit cell, and the metal is made at the three-phase interface, it is difficult to develop a sealant that can satisfy and join all three-phase interfaces.
- the present invention has been made to solve the above-described problems, an object of the present invention, by forming a through-hole through which fuel and air can enter and exit the fuel electrode in order to reduce the weight and volume of the fuel cell, the window frame is omitted It is possible to provide a planar solid oxide fuel cell.
- a planar solid oxide fuel cell including: a fuel electrode including at least one fuel through hole and an air through hole formed; An electrolyte layer located above the anode; An air electrode positioned above the electrolyte layer; And an insulating coating layer for coating at least a portion of the surface of the anode, the fuel through hole, and the air through hole.
- the unit cell may include the anode serving as a support.
- the planar solid oxide fuel cell a sealant layer including an upper sealant (Sealant) located on the upper portion of the unit cell; and a lower sealant located below the unit cell;
- a cathode interconnect located above the upper sealant and having at least one air manifold and a fuel manifold formed therein;
- an anode interconnect positioned below the lower sealant and having at least one air manifold and a fuel manifold formed therein.
- the fuel through hole and the air through hole characterized in that formed on the edge of the anode.
- the electrolyte layer is characterized in that a fuel gas passage corresponding to the fuel through hole and an air passage corresponding to the air through hole are formed.
- the electrolyte layer is characterized in that the insulating material is coated on at least a portion of the surface, the fuel gas passage and the air passage.
- the insulating coating layer is characterized in that the insulating material is coated.
- the insulating material is Yttria-Stablized Zirconia (YSZ), Gadolium-stabilized Ceria (GDC), CaO-stavilized ZrO2 (CSZ). , At least one of aluminum oxide (Al 2 O 3), glass, and crystallized glass.
- the insulating coating layer is characterized in that formed by any one of dip coating and spray coating.
- the planar solid oxide fuel cell comprises: an anode current collector between the sealant layer and the cathode interconnect; And
- the window frame can be omitted, and the weight and volume of the solid oxide fuel cell are reduced.
- the reaction gas is prevented from penetrating into the unit cell, thereby increasing the battery generation efficiency of the fuel cell.
- FIG. 1 is a cross-sectional view of a planar solid oxide fuel cell according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of a planar solid oxide fuel cell according to an exemplary embodiment of the present invention.
- FIG 3 is a cross-sectional view of a planar solid oxide fuel cell according to another exemplary embodiment of the present invention.
- 1 is a cross-sectional view of a planar solid oxide fuel cell 100 according to an embodiment of the present invention.
- 2 is an exploded perspective view of a planar solid oxide fuel cell 100 according to an embodiment of the present invention. 1 and 2, a planar solid oxide fuel cell 100 according to an embodiment of the present invention will be described in detail.
- the planar solid oxide fuel cell 100 includes a fuel electrode 11 including at least one fuel through hole 1 and an air through hole 2 formed therein, an electrolyte layer 12 positioned above the fuel electrode 11, Unit cell including an insulating coating layer 14 for coating at least a portion of the surface of the air electrode 13 and the fuel electrode 11, the fuel through hole 1 and the air through hole 2 positioned above the electrolyte layer 12. (10) may be included.
- the unit cell 10 is a cathode support type in which the anode 11 serves as a support, and the electrolyte layer 12 may have a smaller size or the same size as the anode 11.
- the planar solid oxide fuel cell 100 having the same size of the anode 11 and the electrolyte layer 12 will be described later.
- the electrolyte layer 11 and the cathode 13 may be formed to have a smaller size than that of the anode 11. Since the area is larger than that of the air electrode 13, the polarization resistance of the fuel electrode 11 may be minimized.
- the anode support structure may have the electrolyte layer 12 formed of a thin film having a thickness of 5 to 10 ⁇ m, thereby minimizing the sheet resistance of the electrolyte layer 12. Accordingly, the solid oxide fuel cell including the anode support structure includes It can operate at lower temperatures than the electrolyte support and cathode support structures. In addition, since the anode 11 and the cathode 13 are formed thick, there is an advantage that the mechanical strength of the plate-type solid oxide fuel cell 100 can be increased.
- the fuel through hole 1 and the air through hole 2 formed in the anode 11 may be formed at the edge of the anode 11, and two or more fuel through holes 1 or the air through hole 2 may face each other. It can be formed in the direction. Referring to FIG. 2, two fuel through holes 1 are formed to face opposite left and right sides of the electrolyte layer 12, and air through holes 2 are formed on both upper and lower sides of the electrolyte layer 12. It can be formed opposite.
- fuel through holes 1 and air through holes 2 are formed, for example, when four fuel through holes 1 are formed, two right sides on the left side of the electrolyte layer 12 are formed. Two may be formed in the. However, it is noted that the number, size and shape of the fuel through hole 1 and the air through hole 2 according to the present invention are not limited thereto.
- the fuel through hole 1 and the air through hole 2 formed in the anode 11 may serve as a passage through which the fuel and the reactant gas may flow in the planar solid oxide fuel cell 100, and thus, the window frame may be omitted.
- the planar solid oxide fuel cell flows the reaction gas up and down using a passage formed in the window frame, but the present invention forms a passage through which the fuel and the reactant gas flow in the unit cell 10, thereby providing a planar solid oxide fuel
- the window frame may be omitted in the battery 100.
- the window frame is omitted, the weight of the flat plate type solid oxide fuel cell 100 may be reduced, thereby increasing energy efficiency.
- the configuration of the planar solid oxide fuel cell 100 can be simplified, and economic effects such as manufacturing cost can be reduced.
- the electrolyte layer 12 generally serves as a separator that separates the positive electrode and the negative electrode from the secondary battery, and may serve as an intermediate medium enabling ion movement between the positive electrode and the negative electrode. Therefore, the electrolyte layer 12 may have a dense structure such that fuel gas and oxidizing gas are not vented with each other.
- the electrolyte layer 12 of the solid oxide fuel cell is formed using a thermochemically stable metal oxide, and preferably yttria stabilized zirconia (YSZ) may be used.
- the cathode 13 generally serves to reduce oxygen to oxygen ions by receiving electrons from an external circuit when oxygen is supplied.
- the reduced oxygen ions move to the anode 11 through the electrolyte layer 12 and react with the oxidized fuel to generate water. Therefore, the cathode 13 may have a porous structure so that an electrochemical reaction occurs easily.
- a perovskite material may be used as the cathode 13.
- the insulating coating layer 14 may serve to prevent the reaction gas and air from penetrating into the unit cell 10.
- the insulating coating layer 14 may be formed by coating the surface of the anode 11, the fuel through hole 1, and the air through hole 2 with an insulating material. Note that, when coated in the fuel through hole 1 and the air through hole 2, the insulating coating layer 14 may be coated to form a hole in which a reaction gas and air can enter and exit the center portion in a ring shape. do.
- the insulating material may include a non-conductive material.
- the thickness of the planar solid oxide fuel cell 100 becomes thick, so that the insulating material is a material having a low coefficient of thermal expansion. May be included.
- Y, Ca, Ni or Sc such as yttria stabilized zirconia (YSZ), calcia stabilized zirconia (CSZ), scandia-stabilized zirconia (SSZ), etc.
- Doped zirconia (ZrO 2) based oxides Gd, Y or Sm doped ceria such as gadolinia doped ceria (GDC), samarium doped ceria (SDC), yttria-doped ceria (YDC) It may include any one or more of (CeO 2) oxide, aluminum oxide (Al 2 O 3), glass, and crystallized glass.
- Yttria-Stablized Zirconia YSZ
- Gadolinium-stabilized Ceria GDC
- CaO-stabilized ZrO2 CSZ
- oxidized It may include any one or more of aluminum (Al 2 O 3), glass and crystallized glass.
- YSZ is a ceramic material made by adding yttrium oxide (yttria) to zirconium oxide (zirconia) to make it stable at room temperature.
- yttria yttrium oxide
- zirconia zirconium oxide
- the oxygen ion conductivity and electrical insulation is excellent, there is an advantage that can be operated at high temperatures.
- GDC is a composition used as the anode 11 of the solid oxide fuel cell 100, has a high ion conductivity, increases the carbon coating resistance and improves the unit cell 10 performance, hydrocarbon internal reforming, etc. There are possible advantages.
- CSZ is a ceramic material made by adding calcium oxide (calcia) to zirconium oxide (zirconia) to be stable at room temperature. CSZ can improve the thermal stability of zirconia.
- CSZ is a state in which a cubic crystal structure and a tetragonal crystal structure are mixed. The tetragonal crystal structure changes to a cubic crystal structure when the temperature increases, and changes to a tetragonal crystal structure when the temperature decreases, and the expansion and contraction of the volume may be repeated in the process of changing the crystal structure.
- Glass and crystallized glass are generally compositions that form a sealant layer in the solid oxide fuel cell 100, and the composition of the unit cell 10 and the sealant layer may be the same to increase the interfacial adhesion.
- the insulating coating layer 14 may be formed by a sputtering method, a SOG method, spin coating, dip coating, spray coating, droplet discharge method (for example, ink jet method, screen, etc.). Printing, or offset printing), a doctor knife, a roll coater, a curtain coater, a na ⁇ ve coater.
- the insulating coating layer 14 may be formed by any one of dip coating and spray coating.
- Dip coating is a coating method in which the anode 11 or the electrolyte layer 12 is dipped into the paint and then dried, and the dip coating is complicated in shape and not suitable for spray coating, but may be applied to the same index.
- Spray coating is a method designed for a paint that is not suitable for brushing due to the rapid drying by spraying the paint on the surface of the coating by mist or compressed air using a sprayer.
- the insulating coating layer 14 may be formed on the fuel through hole 1 and the air through hole 2 formed in the anode 11 according to an embodiment of the present invention, or on the electrolyte layer 12 according to another embodiment of the present invention. Dip coating or spray coating is preferred because the insulating material must be coated in a complex shape or shape, such as the fuel gas passage 3 and the inner surface of the air passage 4 formed.
- FIG. 3 is a cross-sectional view of a planar solid oxide fuel cell 100 'according to another embodiment of the present invention.
- the unit cell 10 ′ according to another embodiment of the present invention has a shape in which the anode 11 and the electrolyte layer 12 have the same size, and the fuel gas passage corresponding to the fuel through hole 1 in the electrolyte layer 12. 3 and an air passage 4 corresponding to the air through hole 2 may be formed. Note that the fuel gas passage 3 and the air passage 4 may be formed in a position, a size, a number, and a shape corresponding to the fuel through hole 1 and the air through hole 2.
- an insulating material may be coated on at least a portion of the surface of the electrolyte layer 12, the fuel gas passage 3, and the air passage 4 to form an insulating coating layer 14. That is, the unit cell 10 ′ having the structure in which the insulating coating layer 14 is formed below the anode 11 and the electrolyte layer 12 may be formed. In this case, the insulating coating layer 14 formed on the electrolyte layer 12 may have holes having positions, sizes, and shapes corresponding to those of the cathode 13, and the holes may be spaced apart from the cathode 13.
- the insulating material may be Yttria-Stablized Zirconia (YSZ), Gadolinium-stabilized Ceria (GDC), CaO-stabilized ZrO2 (CSZ), At least one of aluminum oxide (Al 2 O 3), glass, and crystallized glass may be included.
- YSZ Yttria-Stablized Zirconia
- GDC Gadolinium-stabilized Ceria
- CSZ CaO-stabilized ZrO2
- At least one of aluminum oxide (Al 2 O 3), glass, and crystallized glass may be included.
- the electrolyte layer 12 and the insulating coating layer 14 formed on the electrolyte layer 12 may be formed of the same composition, so that the fuel through hole 1 ) And an insulating material may be coated only on the inner surface of the air through hole 2 and the lower side of the anode 11.
- the area for coating an insulating material is reduced, and the area of the electrolyte layer 12 is increased. As it is widened, there is an advantage of high structural stability because there is no damage or structural change by the redox cycle.
- the planar solid oxide fuel cell 100 according to the exemplary embodiment of the present invention and the planar solid oxide fuel cell 100 'according to another exemplary embodiment of the present invention are located on the unit cells 10 and 10'.
- a sealant layer comprising an upper sealant (21) and a lower sealant (22) positioned below the unit cells (10, 10 '), positioned above the upper sealant (21), and having at least one air manifold (
- an anode interconnect 40 positioned below the lower sealant 22 and having at least one air manifold 5 and a fuel manifold 6 formed thereon.
- the sealant layer may be formed of any one of glass and crystallized glass, and serves to bond the unit cell 10 to the cathode interconnect 30 and the anode interconnect 40.
- the sealant layer can be formed in a ring shape.
- the upper sealant layer 21 may bond the insulating coating layer 14 and the cathode interconnect 30, and the lower sealant layer 22 may be an insulating coating layer. 14 and fuel electrode interconnect 40 may be bonded. Therefore, the sealant layer may be formed in a rectangular annular shape in which holes of positions and sizes corresponding to the unit cells 10 and 10 'are formed.
- the sealant layer has difficulty in designing a sealant layer composition that can be bonded to all three configurations by joining three phases of an interconnect, an electrode and a window frame.
- the sealant layer since the insulating coating layer 14 is formed on the upper and lower portions of the anode 11, the sealant layer may be designed with a material having excellent bonding strength with the insulating coating layer 14 and the anode / air electrode interconnect 30 and 40 compositions. Economic effects such as savings can be obtained.
- the fuel manifold 5 formed in the cathode interconnect 30 and the anode interconnect 40 corresponds to the fuel through hole 1 formed in the anode 11 and the fuel gas passage 3 formed in the electrolyte layer 12. Can be formed on.
- the cathode interconnect 30 and the anode interconnect 40 electrically connect the plurality of stacked unit cells 10 to each other.
- the flow path may be formed so that the two kinds of gases supplied to the anode 11 and the cathode 13 may be uniformly supplied to the unit cell 10 without being mixed.
- the flow paths formed in the cathode interconnect 30 and the anode interconnect 40 may be formed on at least one of the upper and lower surfaces of the cathode and anode interconnects 30 and 40 as a concave-convex structure. Further, it should be noted that the flow path formed in the cathode interconnect 30 and the flow path formed in the anode interconnect 40 are formed in the vertical direction and do not communicate with each other. Air may be supplied through a flow path formed in the cathode interconnect 30, and fuel gas may be supplied through a flow path formed in the anode interconnect 40.
- the planar solid oxide fuel cell 100 or 100 ′ may further include an air cathode current collector and a fuel electrode current collector.
- an anode current collector may be positioned between the upper sealant 21 and the cathode interconnect 30, and an anode current collector may be located between the lower sealant 22 and the anode interconnect 40.
- the current collector generally serves to help the anode 11 or the cathode 13 to be in electrical and uniform contact with the cathode and anode interconnects 30, 40.
- a porous metal plate, a metal mesh, a conductive ceramic paste, or the like is used, and a nickel foam is mainly used as the anode current collector.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Abstract
Description
Claims (9)
- 적어도 하나 이상 형성되는 연료 관통홀 및 공기 관통홀를 포함하는 연료극;상기 연료극 상측에 위치되는 전해질층;상기 전해질층 상측에 위치되는 공기극; 및상기 연료극의 표면, 연료 관통홀 및 공기 관통홀 중 적어도 일부를 코팅하는 절연 코팅층;을 포함하는 단위 셀을 포함하며,상기 단위 셀은 상기 연료극이 지지체 역할을 하는 것을 특징으로 하는,평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 평판형 고체 산화물 연료전지는,상기 단위 셀의 상부에 위치되는 상부 실란트(Sealant);와 상기 단위 셀의 하부에 위치되는 하부 실란트;를 포함하는 실란트층;상기 상부 실란트 상부에 위치되고, 적어도 하나 이상의 공기 매니폴드(Manifold) 및 연료 매니폴드가 형성되는 공기극 인터커넥트(Interconnect); 및상기 하부 실란트 하부에 위치되고, 적어도 하나 이상의 공기 매니폴드(Manifold) 및 연료 매니폴드가 형성되는 연료극 인터커넥트;를 포함하는 것을 특징으로 하는,평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 연료 관통홀 및 상기 공기 관통홀은,상기 연료극의 가장자리에 형성되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 전해질층에는,상기 연료 관통홀과 대응되는 연료 가스 통로 및 상기 공기 관통홀과 대응되는 공기 통로가 형성되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제4항에 있어서,상기 전해질층은,표면, 상기 연료 가스 통로 및 상기 공기 통로 중 적어도 일부에 절연성 물질이 코팅되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 절연 코팅층은,절연성 물질이 코팅되어 형성되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제6항에 있어서,상기 절연성 물질은,이트리아-안정화 지르코니아(Yttria-Stablized Zirconia: YSZ), 가돌리늄으로 도핑된 산화세슘(Gadolium-stabilized Ceria : GDC), 칼시아 안정화 지르코니아(CaO-stavilized ZrO2 : CSZ), 산화 알루미늄(Al2O3), 유리 및 결정화 유리 중 어느 하나 이상을 포함하는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 절연 코팅층은,딥 코팅 및 스프레이 코팅 중 어느 하나에 의해 형성되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
- 제1항에 있어서,상기 평판형 고체 산화물 연료전지는,상기 실란트 층과 상기 공기극 인터커넥트 사이 공기극 집전체; 및상기 실란트 층과 상기 연료극 인터커넥트 사이 연료극 집전체;가 더 포함되는 것을 특징으로 하는, 평판형 고체 산화물 연료전지.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018549832A JP6822644B2 (ja) | 2016-08-16 | 2017-08-16 | 平板型固体酸化物燃料電池 |
EP17841671.5A EP3429010B1 (en) | 2016-08-16 | 2017-08-16 | Planar solid oxide fuel cell |
CN201780024216.3A CN109075364B (zh) | 2016-08-16 | 2017-08-16 | 平板型固体氧化物燃料电池 |
US16/255,539 US11870105B2 (en) | 2016-08-16 | 2019-01-23 | Planar solid oxide fuel cell |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160103727A KR102123714B1 (ko) | 2016-08-16 | 2016-08-16 | 평판형 고체 산화물 연료전지 |
KR10-2016-0103727 | 2016-08-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/255,539 Continuation US11870105B2 (en) | 2016-08-16 | 2019-01-23 | Planar solid oxide fuel cell |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018034489A1 true WO2018034489A1 (ko) | 2018-02-22 |
Family
ID=61196771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2017/008898 WO2018034489A1 (ko) | 2016-08-16 | 2017-08-16 | 평판형 고체 산화물 연료전지 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11870105B2 (ko) |
EP (1) | EP3429010B1 (ko) |
JP (1) | JP6822644B2 (ko) |
KR (1) | KR102123714B1 (ko) |
CN (1) | CN109075364B (ko) |
WO (1) | WO2018034489A1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110627167A (zh) * | 2019-09-27 | 2019-12-31 | 上海海事大学 | 掺杂Cs的新型复合Ti-Net/TiO2-NTs/β-PbO2电极及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07105961A (ja) * | 1993-10-12 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | 固体電解質電解セルの製造方法 |
JP2012059441A (ja) * | 2010-09-07 | 2012-03-22 | Sharp Corp | 燃料電池 |
KR101151868B1 (ko) * | 2012-02-27 | 2012-05-31 | 한국에너지기술연구원 | 고체산화물 연료전지용 단위 셀 및 이를 이용한 고체산화물 연료전지 |
JP2013054872A (ja) * | 2011-09-02 | 2013-03-21 | Toyota Motor Corp | 燃料電池 |
KR20160025197A (ko) * | 2014-08-27 | 2016-03-08 | 한국에너지기술연구원 | 고체산화물 연료전지용 셀 및 그 제조방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0541224A (ja) * | 1991-08-05 | 1993-02-19 | Fuji Electric Co Ltd | 固体電解質型燃料電池 |
EP1328035A1 (fr) * | 2002-01-09 | 2003-07-16 | HTceramix S.A. - High Technology Electroceramics | PEN de pile à combustible à oxydes solide |
JP2004200021A (ja) | 2002-12-19 | 2004-07-15 | Mitsubishi Materials Corp | 固体酸化物形燃料電池のガス供給管の接続構造 |
NL1026861C2 (nl) * | 2004-08-18 | 2006-02-24 | Stichting Energie | SOFC stackconcept. |
DE102004047539A1 (de) * | 2004-09-30 | 2006-04-06 | Elringklinger Ag | Dichtungsanordnung für einen Brennstoffzellenstapel und Verfahren zum Herstellen eines Brennstoffzellenstapels |
CN100479251C (zh) * | 2006-03-12 | 2009-04-15 | 中国科学技术大学 | 一种平板型电极支撑固体氧化物燃料电池 |
CN101355177B (zh) * | 2008-08-05 | 2010-07-21 | 西安交通大学 | 一种双层连接体平板固体氧化物燃料电池堆 |
JP5631625B2 (ja) | 2009-06-30 | 2014-11-26 | 日本碍子株式会社 | 固体酸化物形燃料電池 |
KR20130108660A (ko) * | 2011-01-21 | 2013-10-04 | 닝보 인스티튜트 오브 머티리얼즈 테크놀러지 앤드 엔지니어링, 차이니즈 아카데미 오브 사이언시즈 | 고체 산화물 연료 전지 스택 |
US20120251917A1 (en) * | 2011-04-04 | 2012-10-04 | Korea Institute Of Science And Technology | Solid oxide fuel cell comprising nanostructure composite cathode and fabrication method thereof |
JP5920880B2 (ja) | 2012-02-29 | 2016-05-18 | Tdk株式会社 | 積層型固体酸化物形燃料電池の実装構造 |
US9583771B2 (en) | 2013-05-16 | 2017-02-28 | Bloom Energy Coporation | Corrosion resistant barrier layer for a solid oxide fuel cell stack and method of making thereof |
US10020527B2 (en) * | 2014-09-19 | 2018-07-10 | Osaka Gas Co., Ltd. | Electrochemical element, solid oxide fuel cell, and methods for producing the same |
CN107210460A (zh) * | 2015-03-17 | 2017-09-26 | 住友精密工业株式会社 | 燃料电池 |
-
2016
- 2016-08-16 KR KR1020160103727A patent/KR102123714B1/ko active IP Right Grant
-
2017
- 2017-08-16 EP EP17841671.5A patent/EP3429010B1/en active Active
- 2017-08-16 CN CN201780024216.3A patent/CN109075364B/zh active Active
- 2017-08-16 WO PCT/KR2017/008898 patent/WO2018034489A1/ko active Application Filing
- 2017-08-16 JP JP2018549832A patent/JP6822644B2/ja active Active
-
2019
- 2019-01-23 US US16/255,539 patent/US11870105B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07105961A (ja) * | 1993-10-12 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | 固体電解質電解セルの製造方法 |
JP2012059441A (ja) * | 2010-09-07 | 2012-03-22 | Sharp Corp | 燃料電池 |
JP2013054872A (ja) * | 2011-09-02 | 2013-03-21 | Toyota Motor Corp | 燃料電池 |
KR101151868B1 (ko) * | 2012-02-27 | 2012-05-31 | 한국에너지기술연구원 | 고체산화물 연료전지용 단위 셀 및 이를 이용한 고체산화물 연료전지 |
KR20160025197A (ko) * | 2014-08-27 | 2016-03-08 | 한국에너지기술연구원 | 고체산화물 연료전지용 셀 및 그 제조방법 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3429010A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN109075364A (zh) | 2018-12-21 |
JP6822644B2 (ja) | 2021-01-27 |
EP3429010B1 (en) | 2022-09-28 |
EP3429010A1 (en) | 2019-01-16 |
US11870105B2 (en) | 2024-01-09 |
JP2019516214A (ja) | 2019-06-13 |
KR102123714B1 (ko) | 2020-06-16 |
KR20180019406A (ko) | 2018-02-26 |
CN109075364B (zh) | 2022-03-08 |
EP3429010A4 (en) | 2019-04-03 |
US20190157689A1 (en) | 2019-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016080681A1 (ko) | 고체 산화물 연료 전지의 제조방법 | |
WO2015016599A1 (ko) | 고체 산화물 연료전지 및 이의 제조방법 | |
WO2014208869A1 (ko) | 고체산화물 연료전지 스택 | |
WO2015046977A1 (ko) | 고체 산화물 연료전지의 연료극 지지체 제조방법 및 고체 산화물 연료전지의 연료극 지지체 | |
WO2018062693A1 (ko) | 고체 산화물 연료전지 | |
WO2013183885A1 (ko) | 연료 전지용 스택 구조물 및 그의 구성 | |
WO2018034489A1 (ko) | 평판형 고체 산화물 연료전지 | |
WO2017034163A1 (ko) | 평판형 고체산화물 연료전지 및 이를 포함하는 전지모듈 | |
WO2013012142A1 (ko) | 고체산화물연료전지의 단위셀 제조공정 | |
WO2012115485A2 (ko) | 평관형 고체산화물 연료전지 및 평관형 고체산화물 수전해장치 | |
WO2015050409A1 (ko) | 고체 산화물 연료전지의 연료극 지지체 제조방법 및 고체 산화물 연료전지의 연료극 지지체 | |
WO2012015113A1 (ko) | 평관형 고체산화물 셀 스택 | |
KR20200094876A (ko) | 고체산화물 연료전지와 고체산화물 전해셀 | |
WO2018062692A1 (ko) | 고체 산화물 연료전지 | |
WO2024122833A1 (en) | Solid oxide cell and manufacturing method thereof | |
WO2014092357A1 (ko) | 연료 전지용 스택 구조물 | |
WO2014119925A1 (ko) | 리포머 통합형 박막 고체산화물 연료전지 및 그 제조방법 | |
WO2014119931A1 (ko) | 나노파우더를 이용한 박막형 고체 산화물 연료전지의 스택 제조방법 | |
KR102083710B1 (ko) | 고체 산화물 연료전지 | |
WO2018167845A1 (ja) | 平板型電気化学セルスタック | |
JPH07320756A (ja) | 固体電解質燃料電池 | |
WO2011052843A1 (ko) | 고체산화물 연료전지 및 그 제조방법 | |
WO2016200193A1 (ko) | 고체산화물 연료전지용 시트 적층체, 고체산화물 연료전지의 전구체, 고체산화물 연료전지용 시트 적층체 제조장치 및 고체산화물 연료전지용 시트 적층체 제조방법 | |
JPH09190825A (ja) | 固体電解質型燃料電池及びそれに用いられる単電池 | |
WO2023191464A1 (ko) | 박막형 고체산화물 연료전지 패키지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018549832 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017841671 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017841671 Country of ref document: EP Effective date: 20181011 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17841671 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |