CN110600776A - Internal reforming solid oxide fuel cell stack - Google Patents
Internal reforming solid oxide fuel cell stack Download PDFInfo
- Publication number
- CN110600776A CN110600776A CN201910936350.1A CN201910936350A CN110600776A CN 110600776 A CN110600776 A CN 110600776A CN 201910936350 A CN201910936350 A CN 201910936350A CN 110600776 A CN110600776 A CN 110600776A
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- China
- Prior art keywords
- reforming
- anode
- plate
- fuel cell
- solid oxide
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention particularly relates to an internal reforming solid oxide fuel cell stack which comprises a stack formed by stacking a plurality of structural units, an airflow buffer cavity positioned at the periphery of the stack and end plates positioned at the upper side and the lower side of the stack, wherein each structural unit comprises a cathode airflow distribution plate, a connecting body, an anode airflow distribution plate and a single cell which are sequentially and closely attached together, and reforming catalytic materials are impregnated on the anode airflow distribution plate. According to the invention, the reforming catalytic material is impregnated on the surface of the anode gas flow distribution plate, the steam and the desulfurized natural gas are preheated and then directly introduced into the electric pile, the gas completes the reforming reaction before entering the anode reaction area, the reforming catalytic material can accelerate the reforming efficiency, the problem of carbon deposition of the anode can be effectively reduced, and the whole system is simplified.
Description
Technical Field
The invention relates to the technical field of solid oxide fuel cells, in particular to an internal reforming solid oxide fuel cell stack.
Background
The Solid Oxide Fuel Cell (SOFC) is an energy conversion device for directly converting chemical energy of fuel into electric energy, has the advantages of high efficiency, no pollution, low noise and the like, and has wide application prospect in the fields of power supplies, standby power supplies and mobile power supplies. SOFC works under the high temperature condition, and fuel selectivity is wide, and besides pure hydrogen, also include other hydrocarbon fuel such as natural gas, biological oil, SOFC anode material is mainly including Ni cermet, when directly using hydrocarbon burning, easily takes place carbon deposit at the positive pole, destroys the anode structure. To prevent anode fouling, the fuel is converted to H by external reforming before the cell reaction2And CO, when an independent system is built, the complexity of the system structure is increased by the independent reforming design, and the overall energy utilization rate of the system is reduced.
Disclosure of Invention
The invention provides an internal reforming solid oxide fuel cell stack aiming at the technical problems in the prior art, and the system design is simplified through internal reforming reaction by optimizing the design of a cell and the stack.
The technical scheme for solving the technical problems is as follows: the utility model provides an interior reforming solid oxide fuel cell pile, its characterized in that includes the pile that a plurality of constitutional units stack formed, is located the air current cushion chamber around the pile and is located the end plate of pile upper and lower both sides, constitutional unit is including closely laminating cathode airflow distributor plate, connector, anode airflow distributor plate and the monocell together in proper order, it has reforming catalysis material to soak on the anode airflow distributor plate.
The invention replaces fuel space and air space in the electric pile by arranging the anode airflow distribution plate and the cathode airflow distribution plate, soaks reforming catalytic material on the surface of the anode airflow distribution plate, preheats water vapor and desulfurized natural gas, then directly leads the natural gas into the electric pile, finishes reforming reaction before the gas enters an anode reaction area, and the reforming catalytic material can accelerate reforming efficiency, effectively reduces the problem of carbon deposition of the anode and simplifies the whole system.
The connecting body comprises a supporting plate, a first protruding platform and a second protruding platform, the first protruding platform and the second protruding platform are located at the end portion of the supporting plate, the first protruding platform and the second protruding platform are provided with two parts, the first protruding platform and the second protruding platform are located on two side faces of the supporting plate respectively, the first protruding platform and the second protruding platform are arranged in a staggered mode, the cathode airflow distribution plate is tightly attached to the connecting body and located between the second protruding platforms, the anode airflow distribution plate is tightly attached to the connecting body and located between the first protruding platforms, and sealing strips are arranged between the first protruding platform and the second protruding platforms and single batteries.
Preferably, the single cell comprises a cathode, an electrolyte, an anode and an anode reforming layer, the anode reforming layer being a reforming catalytic material.
Wherein, the cathode gas flow distribution plate is a stainless steel corrugated plate.
Wherein, the anode gas flow distribution plate is a porous nickel plate.
Wherein the porous nickel plate is a foam nickel plate or a nickel net.
Wherein the reforming catalytic material is LaMnO doped with Ni3A perovskite catalyst.
According to the internal reforming solid oxide fuel cell pile provided by the invention, the anode airflow distribution plate and the cathode airflow distribution plate are arranged, the reforming catalytic material is soaked on the surface of the anode airflow distribution plate, the steam and the desulfurized natural gas are preheated and then directly introduced into the pile, the gas completes the reforming reaction before entering the anode reaction area, the reforming catalytic material can accelerate the reforming efficiency, the problem of carbon deposition of the anode can be effectively reduced, and the whole system is simplified; meanwhile, a layer of reforming catalytic material is sintered on the surface of the anode of the battery supported by the anode through screen printing, and the reforming efficiency is high through two-step reforming before the fuel enters the anode reaction area.
Drawings
FIG. 1 is a schematic diagram of an internal reforming solid oxide fuel cell stack according to the present invention;
FIG. 2 is a schematic diagram of the structure of an internally reforming solid oxide fuel cell of the present invention;
FIG. 3 is a schematic structural view of a structural unit;
in the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a connector 1, a cathode airflow distribution plate 2, a single cell 3, an anode airflow distribution plate 4, a sealing strip 5, a cathode 6, an electrolyte 7, an anode 8, an anode reforming layer 9, a first convex platform 11 and a second convex platform 12.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, an internal reforming solid oxide fuel cell stack includes a stack formed by stacking a plurality of structural units, an air flow buffer chamber located around the stack, and end plates located at upper and lower sides of the stack, which are all the prior art and will not be described in detail. In the invention, the structural unit comprises a cathode gas flow distribution plate 2, a connector 1, an anode gas flow distribution plate 4 and a single cell 3 which are closely attached together in sequence, wherein the anode gas flow distribution plate 4 is impregnated with reforming catalytic materials.
According to the invention, the anode gas flow distribution plate 2 and the cathode gas flow distribution plate 4 are arranged, the reforming catalytic material is impregnated on the surface of the anode gas flow distribution plate 4, the steam and the desulfurized natural gas are preheated and then directly introduced into the electric pile, the gas completes the reforming reaction before entering the anode reaction area, the reforming catalytic material can accelerate the reforming efficiency, the problem of carbon deposition of the anode can be effectively reduced, and the whole system is simplified.
As shown in fig. 3, the connector 1 includes a supporting plate, a first protruding platform 11 and a second protruding platform 12 located at an end of the supporting plate, the first protruding platform 11 and the second protruding platform 12 are both provided with two and the first protruding platform 11 and the second protruding platform 12 are respectively located on two side surfaces of the supporting plate, the first protruding platform 11 and the second protruding platform 12 are staggered, and the following can be understood as follows for simplicity by way of example: if the first raised platforms 11 are arranged at the left end and the right end of the front surface of the supporting plate, the second raised platforms 12 are arranged at the upper end and the lower end of the supporting plate. The cathode airflow distribution plate 2 is tightly attached to the connecting body 1 and is fixedly welded between the convex platforms II 12, the anode airflow distribution plate 4 is tightly attached to the connecting body 1 and is fixedly welded between the convex platforms I11, and sealing strips 5 are arranged between the convex platforms I11 and the convex platforms II 12 and single cells tightly attached to the convex platforms I12 and used for sealing.
As shown in fig. 2, the single cell includes a cathode 6, an electrolyte 7, an anode 8, and an anode reforming layer 9, the anode reforming layer 9 being a reforming catalytic material.
In this embodiment, the cathode gas distribution plate 2 is a stainless corrugated plate.
In this embodiment, the anode gas distribution plate 4 is a porous nickel plate.
Wherein the porous nickel plate is foamed nickel or a nickel net.
In this example, the reforming catalyst material was Ni-doped LaMnO3A perovskite catalyst, a reforming catalyst material attached by impregnation to the anode gas flow distribution plate 4, and a reforming catalyst material sintered by screen-printing to the anode 8.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides an interior reforming solid oxide fuel cell pile, its characterized in that includes the pile that a plurality of constitutional units stack formed, is located the air current cushion chamber around the pile and is located the end plate of both sides about the pile, constitutional unit is including in proper order close laminating cathode airflow distributor plate (2), connector (1), anode airflow distributor plate (4) and monocell (3) together, it has reforming catalysis material to soak on the anode airflow distributor plate.
2. The internal reforming solid oxide fuel cell stack according to claim 1, wherein the connector (1) comprises a support plate and a first raised platform (11) and a second raised platform (12) which are located at the end of the support plate, the first raised platform (11) and the second raised platform (12) are both provided with two raised platforms (11) and two raised platforms (12) which are respectively located on two side surfaces of the support plate, the first raised platform (11) and the second raised platform (12) are staggered, the cathode gas flow distribution plate (2) is tightly attached to the connector and located between the second raised platforms (12), the anode gas flow (4) is tightly attached to the connector and located between the first raised platforms (11), and a sealing strip (5) is arranged between the first raised platform (11) and the second raised platforms (12) and the single cell to which the first raised platforms (11) and the second raised platforms (12) are respectively attached.
3. An internally reforming solid oxide fuel cell stack according to claim 1, wherein a single cell comprises a cathode (6), an electrolyte (7), an anode (8) and an anode reforming layer (9), said anode reforming layer (9) being a reforming catalytic material.
4. An internally reforming solid oxide fuel cell stack according to claim 1, wherein said cathode gas flow distribution plate (2) is a stainless steel corrugated plate.
5. An internally reforming solid oxide fuel cell stack according to claim 1, wherein said anode gas flow distribution plate (4) is a porous nickel plate.
6. The internally reforming solid oxide fuel cell stack of claim 5, wherein the porous nickel plate is a foamed nickel plate or a nickel mesh.
7. The internally reforming solid oxide fuel cell stack of claim 1, wherein the reforming catalytic material is LaMnO doped with Ni3A perovskite catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936350.1A CN110600776A (en) | 2019-09-29 | 2019-09-29 | Internal reforming solid oxide fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936350.1A CN110600776A (en) | 2019-09-29 | 2019-09-29 | Internal reforming solid oxide fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110600776A true CN110600776A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910936350.1A Pending CN110600776A (en) | 2019-09-29 | 2019-09-29 | Internal reforming solid oxide fuel cell stack |
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| CN (1) | CN110600776A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019377A (en) * | 2021-03-11 | 2021-06-25 | 江苏大学 | Internal reforming material of fuel cell and preparation method and application thereof |
| CN114361505A (en) * | 2022-03-17 | 2022-04-15 | 武汉氢能与燃料电池产业技术研究院有限公司 | Three-runner solid oxide fuel cell unit structure and cell stack |
| CN117039091A (en) * | 2023-08-29 | 2023-11-10 | 广东佛燃科技有限公司 | Tower-shaped SOFC (solid oxide Fuel cell) stack module |
Citations (7)
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|---|---|---|---|---|
| EP0067423A1 (en) * | 1981-06-12 | 1982-12-22 | Energy Research Corporation | Electrochemical cell system with internal reforming |
| US20080107932A1 (en) * | 2006-11-08 | 2008-05-08 | Saudi Arabian Oil Company | Process for the conversion of oil-based liquid fuels to a fuel mixture suitable for use in solid oxide fuel cell applications |
| CN102299360A (en) * | 2010-06-23 | 2011-12-28 | 中国科学院大连化学物理研究所 | Methane direct internal reforming molten carbonate fuel cell (DIR-MCFC) structure and battery pack |
| CN105720288A (en) * | 2014-12-05 | 2016-06-29 | 中国科学院大连化学物理研究所 | Internally-reformed fuel cell stack |
| CN106252697A (en) * | 2016-08-04 | 2016-12-21 | 华中科技大学 | A kind of outflow chamber SOFC pile |
| CN106910928A (en) * | 2015-12-18 | 2017-06-30 | 中国科学院大连化学物理研究所 | A kind of high temperature methanol internal reforming fuel cell |
| CN208208883U (en) * | 2018-09-06 | 2018-12-07 | 常州联德电子有限公司 | A kind of solid oxide fuel cell metal connector |
-
2019
- 2019-09-29 CN CN201910936350.1A patent/CN110600776A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0067423A1 (en) * | 1981-06-12 | 1982-12-22 | Energy Research Corporation | Electrochemical cell system with internal reforming |
| US20080107932A1 (en) * | 2006-11-08 | 2008-05-08 | Saudi Arabian Oil Company | Process for the conversion of oil-based liquid fuels to a fuel mixture suitable for use in solid oxide fuel cell applications |
| CN102299360A (en) * | 2010-06-23 | 2011-12-28 | 中国科学院大连化学物理研究所 | Methane direct internal reforming molten carbonate fuel cell (DIR-MCFC) structure and battery pack |
| CN105720288A (en) * | 2014-12-05 | 2016-06-29 | 中国科学院大连化学物理研究所 | Internally-reformed fuel cell stack |
| CN106910928A (en) * | 2015-12-18 | 2017-06-30 | 中国科学院大连化学物理研究所 | A kind of high temperature methanol internal reforming fuel cell |
| CN106252697A (en) * | 2016-08-04 | 2016-12-21 | 华中科技大学 | A kind of outflow chamber SOFC pile |
| CN208208883U (en) * | 2018-09-06 | 2018-12-07 | 常州联德电子有限公司 | A kind of solid oxide fuel cell metal connector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019377A (en) * | 2021-03-11 | 2021-06-25 | 江苏大学 | Internal reforming material of fuel cell and preparation method and application thereof |
| CN113019377B (en) * | 2021-03-11 | 2023-08-08 | 江苏大学 | Internal reforming material of fuel cell and preparation method and application thereof |
| CN114361505A (en) * | 2022-03-17 | 2022-04-15 | 武汉氢能与燃料电池产业技术研究院有限公司 | Three-runner solid oxide fuel cell unit structure and cell stack |
| CN117039091A (en) * | 2023-08-29 | 2023-11-10 | 广东佛燃科技有限公司 | Tower-shaped SOFC (solid oxide Fuel cell) stack module |
| CN117039091B (en) * | 2023-08-29 | 2024-03-26 | 广东佛燃科技有限公司 | Tower-shaped SOFC (solid oxide Fuel cell) stack module |
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Application publication date: 20191220 |