CN201402834Y - Flat plate-type moderate temperature solid oxide fuel cell stack - Google Patents
Flat plate-type moderate temperature solid oxide fuel cell stack Download PDFInfo
- Publication number
- CN201402834Y CN201402834Y CN2009200856492U CN200920085649U CN201402834Y CN 201402834 Y CN201402834 Y CN 201402834Y CN 2009200856492 U CN2009200856492 U CN 2009200856492U CN 200920085649 U CN200920085649 U CN 200920085649U CN 201402834 Y CN201402834 Y CN 201402834Y
- Authority
- CN
- China
- Prior art keywords
- solid oxide
- oxide fuel
- work package
- fuel cell
- side cover
- 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.)
- Expired - Lifetime
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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
Abstract
The utility model discloses a moderate temperature flat plate-type solid oxide fuel cell stack, which comprises a side cover with air passage branching paths, upper and lower end covers, and a workingcomponent clamped in the middle. The working component is made up of a metal connecting plate and a solid oxide fuel cell alternately lapped, and a channel flow is formed on the surface of the connecting plate to form an inner air flue of a galvanic pile; and the oxygen and the fuel gas pass through the air passage branching paths of the side cover and enter the working component with air flue opening on the side surface, contact and react with the anode surface and the cathode surface of a battery, and the current produced by reaction is educed from a top cap and a base. The utility model has simple structure and reliable performance, and can realize favorable air passage sealing and current conduction under the circumstances, ranging from ambient temperature to operating temperature.
Description
Technical field
The utility model relates to energy field, and particularly relating to a kind of working temperature is the plate type solid-oxide fuel battery pile of middle temperature (600～800 ℃).
Background technology
Form about solid oxide fuel (SOFC) monocell mainly contains tubular type, flat and lamination corrugated plate dst at present.In warm SOFC (working temperature is between 600 ℃ to 800 ℃) mainly adopt the planar cells form.In warm flat solid oxide fuel cell constitute by pottery, be supporter with the dull and stereotyped anode of the about 1mm of thickness, sintering has the fine and close Zirconia electrolytic and the ceramic cathode of porous successively on the surface of one side.Under working temperature environment, anode and negative electrode place respectively under reducing atmosphere and the oxygen atmosphere, and battery just can provide voltage, insert load, and battery just can be exported electric energy.The monocell open circuit voltage depends on the partial pressure of oxygen of working temperature and electrolyte both sides, and generally about 1.1V, power output depends primarily on internal resistance and reaction zone area.Monocell exists voltage and under powered defective, therefore prior art has proposed a kind of battery pile structure, battery pile has the incomparable advantage of monocell in the voltage power supply side, but it must solve the sealing and the problems such as isolation, electric current collection conduction of fuel gas and oxic gas.
Application number be 02115884.3 Chinese patent file " a kind of flat intermediate temperature solid oxide fuel cell heap " provide a kind of cross-current to the dull and stereotyped SOFC pile design of interior air flue.
United States Patent (USP) Co-flow planar SOFC fuel cell stack (application number 6824910) provides a kind of with the dull and stereotyped SOFC pile design of the interior air flue that flows to.
The electric pile structure of air flue design in these two kinds, by battery, encapsulant and metallic interconnect stack gradually formation, its gas distributes divergent road to be made of perforate on the metallic interconnect and the encapsulant between connecting plate, assemble comparatively simply, proved the design object that to reach gas circuit sealing and collect conduction current in practice.But this class design, the metallic interconnect of its each monocell of connecting is complex-shaped, and difficulty of processing is higher.Because encapsulant will constitute the vertical side of every layer of gas flow, the area of hollow is more much bigger than monocell area, therefore needs the bigger area of cutting in the preparation, and utilance is not high.
The utility model content
The purpose of this utility model be propose a kind of flat in warm SOFC battery pile, simple in structure, dependable performance can realize all that good gas circuit seals and conduction of current in room temperature to operating temperature range.
A kind of flat intermediate temperature solid oxide fuel cell heap comprises work package and clamping assembly; Work package comprises alternately laminated metallic interconnect and middle temperature flat solid oxide fuel (SOFC) battery, and the superiors of work package and orlop are metallic interconnect; The edge of SOFC battery and metallic interconnect contact-making surface is provided with the bar shaped sealing gasket; The surface of metallic interconnect has conduit, and it constitutes the inner air flue of pile with close sealing gasket and SOFC battery, and adjacent last downtake direction is vertical mutually, thereby forms four groups of gas ports in the work package side; The clamping assembly comprises base, upper end cover and side cover, and work package is placed between base and upper end cover, and side cover and work package side fit tightly, and side cover is provided with four gas delivery channels, and each gas delivery channels is connected with one group of gas port respectively.
Described gas delivery channels is: have the buffering cavity on contacted of side cover and the work package side, the buffering cavity is connected with a gas port of work package side, the buffering cavity inner wall has a through hole that is in communication with the outside, through hole outlet weld metal pipe.
The beneficial effects of the utility model are embodied in: the utility model in guaranteeing the SOFC pile between the working gas and working gas with external environment isolated mutually in, the circuit connection between the SOFC monocell is kept clear.And the pile work package can change and to slide up and down with applying thereon pressure, do not influence the gas circuit sealing.The quantity of monocell can be expanded easily in the pile, only needs to use the side cover of differing heights, does not need structural design is carried out material alteration.Sealing means does not adopt the sealing of circle type, but adopts the strip sealing, has improved the utilance of encapsulant greatly.The utility model is simple in structure, and is easy to assembly, is easy to processing and fabricating.
Description of drawings
Fig. 1 is SOFC electric pile structure figure of the present utility model;
Fig. 2 is the metallic interconnect vertical view in the work package;
Fig. 3 is the stereogram of side cover in the clamping assembly.
Embodiment
As shown in Figure 1, warm SOFC battery pile comprises work package and clamping assembly in flat; Work package constitutes by stainless steel connecting plate 3 and SOFC battery 6 are alternately laminated, and the superiors of work package and orlop are the stainless steel connecting plate, and SOFC battery 6 is by 3 series connection of stainless steel connecting plate.The edge of SOFC battery and metallic interconnect contact-making surface is provided with bar shaped sealing gasket 8.The upper and lower surface of stainless steel connecting plate 3 all has the conduit 5 with external communications, and the conduit direction is vertical mutually up and down.
In work package, utilize ferritic stainless steel connecting plate 3 that fuel-cell single-cell 6 is together in series, and constitute the gas circuit of the anode and the negative electrode of mutual seal isolation.
Work package is overlooked and is the square unidimensional with the SOFC monocell.Battery and connecting plate alternately pile up, and are the initial sum end of a period unit that piles up with connecting plate.The connecting plate upper and lower surface has conduit, constitute the passage of entrance and exit as pile inside air flue with bar shaped sealing gasket 8 and monocell 6, oxygen supply gasification and fuel gas flow through respectively, the mutually vertical (see figure 2) of conduit direction up and down is with the inlet of inlet, outlet and the fuel gas of oxic gas, four sides that outlet is arranged in battery pile respectively.Adopt ceramic bar shaped sealing gasket 8 to separate between the contact-making surface of battery edge and connecting plate, this ceramic bar shaped sealing gasket 8 seals gas circuit on the one hand, on the other hand with the anode and the cathode insulation of monocell, avoids it to pass through the connecting plate contact short circuit.The connecting plate of work package top and bottom only need simultaneously have conduit.Filling porous ripple corrosion resistant plate in the air flue of connecting plate, the air flue of battery cathode side can load nickel foam, its purpose is to allow the flow through gas of air flue be evenly distributed on the entire working surface of monocell on the one hand, be that cell cathode is contacted with connecting plate respectively with anode on the other hand, form good current path, and battery played a supporting role, add pressure at right angle when preventing to assemble and destroy battery.Connecting plate channel sidewalls entrance and exit shrinks at a certain angle, reduce the width of entrance and exit in the work package side, with the sealing area that enlarges four jiaos of connecting plates and the sealing area of work package side, thereby improve sealing property between work package and side cover.The thickness of nickel foam and porous stainless steel corrugated plating is a little more than the thickness summation of the conduit degree of depth and encapsulant, so, behind impressed pressure, encapsulant is compressed, monocell the two poles of the earth both can fit tightly with nickel foam and porous stainless steel corrugated plating respectively, can avoid producing excessive pressure damage battery again.
The clamping assembly is divided into base 4, upper end cover 1 and side cover group 2.Work package is placed on the base, upper end cover is placed on the work package, and side cover is clamped the pile work package from four sides, connects with bolt between the adjacent side cover, side cover and work package side are fitted tightly, and under the effect of Gask-O-Seal, finish the isolated of whole gas circuit and environment.Upper end cover is to overlook the size metal cuboid consistent with battery size.Base is different with upper end cover, and outstanding platform is arranged all around, is used for locating in vertical direction to side cover.Side cover not only plays the steady job assembly, also is the transfer passage of oxidation and fuel gas simultaneously.For finishing above function, there is the platform that becomes miter angle with sealing surface the side cover both sides, and the through hole perpendicular to the platform normal direction is arranged on it, and bolt links to each other with adjacent side cover by this through hole, finishes locking.The one side of side cover and pile work package contacts side surfaces has the buffering cavity, in the buffering cavity through hole that links to each other with the external world is arranged, and its outlet weldering stainless steel tube constitutes gas circuit.During the pile assembling, the buffering cavity is relative with the gas inlet-outlet of work package side, and isolates side cover and work package by encapsulant, forms the gas passage that oxygen and fuel gas are isolated mutually.The clamping assembly is isolated with work package and environment, and finishes and the UNICOM of outside air supply system and the mutual isolation of different gas circuits.
Fig. 3 is side cover figure, the 7th, and bolt hole, bolt are used for adjacent side cover is connected with each other, and apply certain pretightning force side cover and work package side are fitted tightly.The 9th, the gas access, the 10th, the buffering cavity, gas 9 enters buffering cavity 10 from entering the mouth, and the back that is evenly distributed enters work package inside from the opening of cavity opening by the work package side, with the battery surface haptoreaction.
Claims (5)
1, a kind of flat intermediate temperature solid oxide fuel cell heap comprises work package and clamping assembly, it is characterized in that:
Described work package comprises alternately laminated metallic interconnect and middle temperature flat solid oxide fuel (SOFC) battery, and the superiors and orlop are metallic interconnect; The edge of SOFC battery and metallic interconnect contact-making surface is provided with the bar shaped sealing gasket; The surface of metallic interconnect has conduit, and it constitutes the inner air flue of pile with close sealing gasket and SOFC battery; Adjacent last downtake direction is vertical mutually, thereby forms four groups of gas ports in the work package side;
Described clamping assembly comprises base, upper end cover and side cover, and work package is placed between base and upper end cover, and side cover and work package side fit tightly, and side cover is provided with four gas delivery channels, and each gas delivery channels is connected with one group of gas port respectively.
2, flat intermediate temperature solid oxide fuel cell heap according to claim 1, it is characterized in that, described gas delivery channels is: have the buffering cavity on contacted of side cover and the work package side, the buffering cavity is connected with one group of gas port of work package side, the buffering cavity inner wall has a through hole that is in communication with the outside, through hole outlet weld metal pipe.
3, flat intermediate temperature solid oxide fuel cell heap according to claim 1 is characterized in that, filling porous wavy metal plate in the described air flue, and air flue is near battery cathode place filling nickel foam.
4, flat intermediate temperature solid oxide fuel cell heap according to claim 1 is characterized in that described gas port inwardly draws in.
5, according to claim 1 or 2 or 3 or 4 described flat intermediate temperature solid oxide fuel cell heaps, it is characterized in that described metallic interconnect is the stainless steel connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200856492U CN201402834Y (en) | 2009-05-08 | 2009-05-08 | Flat plate-type moderate temperature solid oxide fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200856492U CN201402834Y (en) | 2009-05-08 | 2009-05-08 | Flat plate-type moderate temperature solid oxide fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402834Y true CN201402834Y (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200856492U Expired - Lifetime CN201402834Y (en) | 2009-05-08 | 2009-05-08 | Flat plate-type moderate temperature solid oxide fuel cell stack |
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| CN (1) | CN201402834Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723507A (en) * | 2012-05-22 | 2012-10-10 | 华中科技大学 | External airway type flat solid oxide fuel cell stack and assembling method |
| CN103698036A (en) * | 2012-09-27 | 2014-04-02 | 中国科学院上海硅酸盐研究所 | Device for measuring temperature field distribution of large-area flat-type solid oxide fuel cell |
| CN105355942A (en) * | 2015-10-29 | 2016-02-24 | 华中科技大学 | Outflow chamber based air-flow chamber sealing device for solid oxide fuel cell |
| CN106252697A (en) * | 2016-08-04 | 2016-12-21 | 华中科技大学 | A kind of outflow chamber SOFC pile |
| CN110729498A (en) * | 2019-10-22 | 2020-01-24 | 中国矿业大学 | Sealing structure of flat plate type solid oxide fuel cell |
-
2009
- 2009-05-08 CN CN2009200856492U patent/CN201402834Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723507A (en) * | 2012-05-22 | 2012-10-10 | 华中科技大学 | External airway type flat solid oxide fuel cell stack and assembling method |
| CN102723507B (en) * | 2012-05-22 | 2014-08-27 | 华中科技大学 | External airway type flat solid oxide fuel cell stack and assembling method |
| CN103698036A (en) * | 2012-09-27 | 2014-04-02 | 中国科学院上海硅酸盐研究所 | Device for measuring temperature field distribution of large-area flat-type solid oxide fuel cell |
| CN105355942A (en) * | 2015-10-29 | 2016-02-24 | 华中科技大学 | Outflow chamber based air-flow chamber sealing device for solid oxide fuel cell |
| CN106252697A (en) * | 2016-08-04 | 2016-12-21 | 华中科技大学 | A kind of outflow chamber SOFC pile |
| CN110729498A (en) * | 2019-10-22 | 2020-01-24 | 中国矿业大学 | Sealing structure of flat plate type solid oxide fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CHINA SOFC LTD. Free format text: FORMER OWNER: HUAZHONG SCINECE AND TECHNOLOGY UNIV Effective date: 20110513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430074 NO. 1037, LUOYU ROAD, HONGSHAN DISTRICT, WUHAN CITY, HUBEI PROVINCE TO: 518033 37/F, INTERNATIONAL SCIENCE AND TECHNOLOGY BUILDING, MIDDLE ROAD, SHENNAN AVENUE, FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110513 Address after: 37, 518033 floor, international science and technology building, Shennan Road, Shenzhen, Guangdong, Futian District Patentee after: China SOFC Ltd. Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 1037 Patentee before: Huazhong University of Science and Technology |
|
| ASS | Succession or assignment of patent right |
Owner name: CHINA SOFC LTD. Free format text: FORMER OWNER: SHENZHEN CHINA SOFC, LTD. Effective date: 20111123 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518033 SHENZHEN, GUANGDONG PROVINCE TO: 211400 YANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111123 Address after: 211400, No. 2, Tai Tai Road, Yizheng Economic Development Zone, Yangzhou, Jiangsu Patentee after: Yizheng Boyuan in Amperex Technology Limited Address before: 37, 518033 floor, international science and technology building, Shennan Road, Shenzhen, Guangdong, Futian District Patentee before: China SOFC Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100210 |