CN104779406A - Forming process of metal connector of solid oxide fuel battery - Google Patents
Forming process of metal connector of solid oxide fuel battery Download PDFInfo
- Publication number
- CN104779406A CN104779406A CN201510195230.2A CN201510195230A CN104779406A CN 104779406 A CN104779406 A CN 104779406A CN 201510195230 A CN201510195230 A CN 201510195230A CN 104779406 A CN104779406 A CN 104779406A
- Authority
- CN
- China
- Prior art keywords
- supporting bracket
- metal connector
- distribution plate
- solid oxide
- fuel gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H01M8/02—Details
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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
- H01M8/02—Details
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
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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
-
- 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
-
- 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 relates to the technical field of fuel batteries and in particular relates to a forming process of a metal connector of a solid oxide fuel battery. The metal connector is composed of an anode fuel gas distribution plate, a supporting plate and a cathode air distribution plate. The forming process comprises the steps of assembly manufacturing, supporting plate sealing, supporting plate molding and assembly splicing. The metal connector is designed into a combined structure of three independent parts all having high flexibility, namely the anode fuel gas distribution plate, the supporting plate and the cathode air distribution plate, and therefore, the metal connector is simple and easy to form and suitable for batch preparation; the quality and the consistency of products can be guaranteed to the utmost extent, the great reduction of the manufacturing cost can be realized, the commercial progress of the SOFC technique is pushed, the production cost and the production difficulty are reduced and the processing precision is improved; besides, the sealing and interface contact of a galvanic pile can be realized favorably, the homogenization of the flow field of the galvanic pile and the balance of the stress field of the galvanic pile can be realized, and the high performance and the long service life of the galvanic pile can be guaranteed.
Description
Technical field
The present invention relates to field of fuel cell technology, especially a kind of metal connector moulding process of Solid Oxide Fuel Cell.
Background technology
Fuel cell is the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that a kind of chemical energy being stored in fuel is converted into electric energy, owing to not burning and mechanical movement process, does not therefore limit by Carnot cycle, can reach very high generating efficiency, be approximately 40% ~ 60%.Solid Oxide Fuel Cell (SOFC) is a kind of high-temperature fuel cell, and working temperature is 600
oc ~ 800
oc.In each types of fuel cells, its volume energy density is the highest, can realize high efficiency high-power output, if in cogeneration, energy conversion efficiency can reach more than 80%.Meanwhile, its SO
xand NO
xdischarge almost nil, generating noise is very low, is eco-friendly generation mode.SOFC can directly use the hydrocarbons such as natural gas, oil liquefied gas, coal gas as fuel gas, and energy adaptability is good.Therefore, SOFC can be applicable to the electricity needs department from several watts to MW class, is suitable as dispersion, portable power source or medium-and-large-sized power station and uses, all have broad application prospects at electric power, transport and military aspect.The power of SOFC monocell is limited, in order to obtain more powerful pile, connector must be used to realize the assembling of high-power pile, and therefore connector is very crucial parts in pile.It connects negative electrode and the anode of adjacent single cells in pile, collected current, and distribution of gas intercepts fuel and air.Along with the decline of SOFC operating temperature, the metal material making some special becomes possibility as connector, and these metal materials need to meet thermal coefficient of expansion simultaneously and mate with monocell, have the technical requirement such as high-temperature oxidation resistance and stronger high-temperature electric conduction ability.The ability that closely related between the structure of Metallic Interconnect Materials Used and connector and the performance of pile, the design of rational connector can realize even flow field distribution in pile inside, reduce interface contact resistance between layers, improve stress distribution between pile assembly, improve connector collected current.Existing connector can be divided into pottery and the large class of metal two: ceramic joining body is with LaCrO
3for representative, processing cost is high, accounts for 70% of whole pile cost; Existing metal connector is substantially based on machining, also there is high expensive in precision optical machinery processing mode, the problems such as waste material, the ferritic stainless steel particularly as connector is easy to occur deformation in machining, thus affects the dimensional accuracy of connector.
Summary of the invention
In order to the metal connector processing cost overcoming existing Solid Oxide Fuel Cell is high, yielding, the deficiency of low precision, the invention provides a kind of metal connector moulding process of Solid Oxide Fuel Cell.
The technical solution adopted for the present invention to solve the technical problems is: a kind of metal connector moulding process of Solid Oxide Fuel Cell, metal connector is made up of anode fuel gas distribution plate, supporting bracket and cathode air distribution plate, comprises the following steps: assembly manufacture → supporting bracket sealing → supporting bracket is moulding → and assembly splicing.
According to another embodiment of the invention, comprise assembly manufacturing step further and comprise, supporting bracket adopts the Linear cut of rolled plate shaping, and anode fuel gas distribution plate and cathode air distribution plate are by mould punching steel plate forming.
According to another embodiment of the invention, comprise supporting bracket sealing step further to comprise, by fixture, supporting bracket is fixed, at both sides, the front soldering stainless steel bar of supporting bracket as anode seal face, and at the back side of supporting bracket, 90-degree rotation at both sides soldering stainless steel bar as negative electrode sealing surface.
According to another embodiment of the invention, comprise the moulding step of supporting bracket further and comprise, utilize recirculated water to be derived fast by the heat that laser welding produces, avoid the therefore thermal deformation caused, finally obtain a supporting bracket machined.
According to another embodiment of the invention, comprise assembly splicing step further to comprise, anode fuel gas distribution plate and cathode air distribution plate are put the tow sides being welded in supporting bracket respectively, the gas flow of fork and arrangement strikes a bargain, namely the fuel gas stream being positioned at anode forms vertical position relation to the air flow being positioned at negative electrode, passes into fuel gas and air respectively.
The invention has the beneficial effects as follows, be designed to metal connector to adopt the anode fuel gas distribution plate of the flexibility all with height, the combining structure of supporting bracket and cathode air distribution plate three individual components, simple, be suitable for mass preparation, can farthest ensure product quality and consistency, realize declining to a great extent of processing cost, promote the commercialization process of SOFC technology, reduce production cost and difficulty, improve machining accuracy, be very beneficial for sealing and the interracial contact of pile, realize the homogenizing in pile flow field and the equilibrium of stress field, high-performance and the long-life of pile can be ensured.And, employing cross-channel designs, and be namely positioned at the fuel gas stream of anode to being vertical position relation with the air flow being positioned at negative electrode, this is conducive to the gas supply balance of negative electrode in monocell course of reaction, anode both sides, be evenly distributed to the whole active reaction district of monocell, improve efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front schematic view of the present invention;
Fig. 2 is schematic rear view of the present invention.
1. anode seal faces in figure, 2. negative electrode sealing surface, 3. supporting bracket, 4. anode fuel gas distribution plate, 5. cathode air distribution plate.
Embodiment
If Fig. 1 is front schematic view of the present invention, Fig. 2 is schematic rear view of the present invention, a kind of metal connector moulding process of Solid Oxide Fuel Cell, metal connector is made up of anode fuel gas distribution plate, supporting bracket and cathode air distribution plate, comprises the following steps: assembly manufacture → supporting bracket sealing → supporting bracket is moulding → and assembly splicing.
Assembly manufacturing step comprises, and supporting bracket adopts the Linear cut of rolled plate shaping, and anode fuel gas distribution plate and cathode air distribution plate are by mould punching steel plate forming.
Supporting bracket sealing step comprises, and is fixed supporting bracket by fixture, at both sides, the front soldering stainless steel bar of supporting bracket as anode seal face, and at the back side of supporting bracket, 90-degree rotation at both sides soldering stainless steel bar as negative electrode sealing surface.
The moulding step of supporting bracket comprises, and utilizes recirculated water to be derived fast by the heat that laser welding produces, avoids the therefore thermal deformation caused, and finally obtains a supporting bracket machined.
Assembly splicing step comprises, anode fuel gas distribution plate and cathode air distribution plate are put the tow sides being welded in supporting bracket respectively, the gas flow of fork and arrangement strikes a bargain, namely the fuel gas stream being positioned at anode forms vertical position relation to the air flow being positioned at negative electrode, passes into fuel gas and air respectively.
Be designed to metal connector to adopt the anode fuel gas distribution plate of the flexibility all with height, the combining structure of supporting bracket and cathode air distribution plate three individual components, simple, be suitable for mass preparation, can farthest ensure product quality and consistency, realize declining to a great extent of processing cost, promote the commercialization process of SOFC technology, reduce production cost and difficulty, improve machining accuracy, be very beneficial for sealing and the interracial contact of pile, realize the homogenizing in pile flow field and the equilibrium of stress field, high-performance and the long-life of pile can be ensured.And, employing cross-channel designs, and be namely positioned at the fuel gas stream of anode to being vertical position relation with the air flow being positioned at negative electrode, this is conducive to the gas supply balance of negative electrode in monocell course of reaction, anode both sides, be evenly distributed to the whole active reaction district of monocell, improve efficiency.
Claims (5)
1. the metal connector moulding process of a Solid Oxide Fuel Cell, it is characterized in that, metal connector is made up of anode fuel gas distribution plate, supporting bracket and cathode air distribution plate, comprises the following steps: assembly manufacture → supporting bracket sealing → supporting bracket is moulding → and assembly splicing.
2. the metal connector moulding process of Solid Oxide Fuel Cell according to claim 1, it is characterized in that, assembly manufacturing step comprises, and supporting bracket adopts the Linear cut of rolled plate shaping, and anode fuel gas distribution plate and cathode air distribution plate are by mould punching steel plate forming.
3. the metal connector moulding process of Solid Oxide Fuel Cell according to claim 1, it is characterized in that, supporting bracket sealing step comprises, by fixture, supporting bracket is fixed, at both sides, the front soldering stainless steel bar of supporting bracket as anode seal face, and at the back side of supporting bracket, 90-degree rotation at both sides soldering stainless steel bar as negative electrode sealing surface.
4. the metal connector moulding process of Solid Oxide Fuel Cell according to claim 1, it is characterized in that, the moulding step of supporting bracket comprises, recirculated water is utilized to be derived fast by the heat that laser welding produces, avoid the therefore thermal deformation caused, finally obtain a supporting bracket machined.
5. the metal connector moulding process of Solid Oxide Fuel Cell according to claim 1, it is characterized in that, assembly splicing step comprises, anode fuel gas distribution plate and cathode air distribution plate are put the tow sides being welded in supporting bracket respectively, the gas flow of fork and arrangement strikes a bargain, namely the fuel gas stream being positioned at anode forms vertical position relation to the air flow being positioned at negative electrode, passes into fuel gas and air respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195230.2A CN104779406B (en) | 2015-04-23 | 2015-04-23 | The preparation method of the metal connector of solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195230.2A CN104779406B (en) | 2015-04-23 | 2015-04-23 | The preparation method of the metal connector of solid oxide fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779406A true CN104779406A (en) | 2015-07-15 |
| CN104779406B CN104779406B (en) | 2019-01-22 |
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| CN201510195230.2A Active CN104779406B (en) | 2015-04-23 | 2015-04-23 | The preparation method of the metal connector of solid oxide fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167084A (en) * | 2018-09-06 | 2019-01-08 | 常州联德电子有限公司 | A kind of solid oxide fuel cell metal connector and its quick molding method |
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| CN1469497A (en) * | 2002-10-25 | 2004-01-21 | High temperature sealing material and method for solid oxide fuel cell | |
| CN1655386A (en) * | 2005-04-05 | 2005-08-17 | 中国矿业大学（北京校区） | Method for connecting ceramal in solid oxide fuel battery |
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| CN101630747A (en) * | 2009-08-09 | 2010-01-20 | 江苏新源动力有限公司 | Metal bipolar plate of air-cooling type fuel cell stack |
| CN101764236A (en) * | 2010-01-12 | 2010-06-30 | 中国石油大学(华东) | Flat fuel cell flexible seal device and brazing technology thereof |
| CN201590440U (en) * | 2010-01-12 | 2010-09-22 | 中国石油大学(华东) | Flexible sealing device for flat plate-shaped fuel cell |
| US7981561B2 (en) * | 2005-06-15 | 2011-07-19 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
| CN102280645A (en) * | 2011-07-01 | 2011-12-14 | 中国华能集团清洁能源技术研究院有限公司 | Molten carbonate fuel cell bipolar plate and manufacturing method thereof |
| CN202172104U (en) * | 2011-07-01 | 2012-03-21 | 中国华能集团清洁能源技术研究院有限公司 | Bipolar plate of molten carbonate fuel cell |
| CN103094595A (en) * | 2013-01-22 | 2013-05-08 | 中国科学院上海硅酸盐研究所 | Anode support tube type solid oxide fuel cell and assembling method thereof |
-
2015
- 2015-04-23 CN CN201510195230.2A patent/CN104779406B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469497A (en) * | 2002-10-25 | 2004-01-21 | High temperature sealing material and method for solid oxide fuel cell | |
| CN1655386A (en) * | 2005-04-05 | 2005-08-17 | 中国矿业大学（北京校区） | Method for connecting ceramal in solid oxide fuel battery |
| CN1667862A (en) * | 2005-04-05 | 2005-09-14 | 中国矿业大学（北京校区） | High reliability long life solid oxide fuel battery and process for preparation |
| US7981561B2 (en) * | 2005-06-15 | 2011-07-19 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
| CN101630747A (en) * | 2009-08-09 | 2010-01-20 | 江苏新源动力有限公司 | Metal bipolar plate of air-cooling type fuel cell stack |
| CN101764236A (en) * | 2010-01-12 | 2010-06-30 | 中国石油大学(华东) | Flat fuel cell flexible seal device and brazing technology thereof |
| CN201590440U (en) * | 2010-01-12 | 2010-09-22 | 中国石油大学(华东) | Flexible sealing device for flat plate-shaped fuel cell |
| CN102280645A (en) * | 2011-07-01 | 2011-12-14 | 中国华能集团清洁能源技术研究院有限公司 | Molten carbonate fuel cell bipolar plate and manufacturing method thereof |
| CN202172104U (en) * | 2011-07-01 | 2012-03-21 | 中国华能集团清洁能源技术研究院有限公司 | Bipolar plate of molten carbonate fuel cell |
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| CN109167084A (en) * | 2018-09-06 | 2019-01-08 | 常州联德电子有限公司 | A kind of solid oxide fuel cell metal connector and its quick molding method |
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| CN104779406B (en) | 2019-01-22 |
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Address after: 213000 No.56 Guoxiang Road, West Taihu science and Technology Industrial Park, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU LAMBDA ELECTRONIC Co.,Ltd. Patentee after: HUAZHONG University OF SCIENCE AND TECHNOLOGY Address before: No.15 Ziwei Road, Zhonglou Economic Development Zone, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU LAMBDA ELECTRONIC Co.,Ltd. Patentee before: HUAZHONG University OF SCIENCE AND TECHNOLOGY |
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