CN102122722A - Solid oxide fuel cell stack - Google Patents
Solid oxide fuel cell stack Download PDFInfo
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- CN102122722A CN102122722A CN201110024540XA CN201110024540A CN102122722A CN 102122722 A CN102122722 A CN 102122722A CN 201110024540X A CN201110024540X A CN 201110024540XA CN 201110024540 A CN201110024540 A CN 201110024540A CN 102122722 A CN102122722 A CN 102122722A
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- fuel gas
- oxidizing gas
- fuel cell
- cell stack
- solid
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- 239000000446 fuel Substances 0.000 title claims abstract description 47
- 239000007787 solid Substances 0.000 title abstract description 15
- 239000002737 fuel gas Substances 0.000 claims abstract description 91
- 239000007789 gas Substances 0.000 claims abstract description 90
- 230000001590 oxidative effect Effects 0.000 claims abstract description 84
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000011159 matrix material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 26
- 230000008569 process Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 15
- 239000006260 foam Substances 0.000 description 13
- 229910052759 nickel Inorganic materials 0.000 description 13
- 239000007800 oxidant agent Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000004047 hole gas Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000007781 pre-processing Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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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
-
- 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
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- Fuel Cell (AREA)
Abstract
The invention provides a solid oxide fuel cell stack which comprises an upper current collector, a lower current collector and a stacked structure accommodated between the upper current collector and the lower current collector, wherein the stacked structure comprises at least two connecting parts and a cell piece arranged between the two adjacent connecting parts, each connecting part comprises the anode side and the cathode side, an oxidizing gas sealing part is arranged on the anode side of each connecting part, and a fuel gas sealing part is arranged on the cathode side of each connecting part; and a closed oxidizing gas inlet channel, a closed fuel gas inlet channel, a closed fuel gas outlet channel and an open oxidizing gas outlet channel are arranged on the stacked structure. Compared with the prior art, as an oxidizing gas outlet is open, the internal gas pressure difference at the cathode sides of the connecting parts is smaller, the flow is more smooth, the problem of mutual gas moving between fuel gas and oxidizing gas can be effectively solved, the sealing reliability of the stack can be improved, and the finished product rate of the stack and the performance operation stability can be further improved.
Description
Technical field
The present invention relates to Solid Oxide Fuel Cell, be specifically related to a kind of solid-oxide fuel cell stack.
Background technology
Solid Oxide Fuel Cell (Solid Oxide Fuel Cell, be called for short SOFC) belong to third generation fuel cell, be all solid state Chemically generation device that a kind of chemical energy that will be stored under middle high temperature in fuel and the oxidant efficiently, environmental friendliness changes into electric energy.Solid Oxide Fuel Cell roughly is divided into two kinds: a kind of is column type, and wherein electrode and solid electrolyte all cover around the face of cylinder, and another kind is a plane, and wherein solid electrolyte and electrode are all made flat shape.
Compare with the column type Solid Oxide Fuel Cell, the plane Solid Oxide Fuel Cell has higher power density in unit volume, is applicable to more on mobile device such as automobile and uses, and therefore has the prospect of using more widely.The core component of plane solid oxide fuel battery system is a battery pile, and battery pile is the stacked structure that is formed by a plurality of Solid Oxide Fuel Cell unit.
The stability of battery pile is the key that can the whole solid oxide fuel battery system of decision normally move.The factor that influences battery pile stability comprises the catchment effect of the contact interface between monocell life-span, battery pile sealing, battery and the connector, and wherein improving the battery pile sealing is one of research focus of current Solid Oxide Fuel Cell.
In the prior art, the hermetically-sealed construction of flat-plate-type solid-oxide fuel battery mainly contains two kinds, and first kind of hermetically-sealed construction is that fuel and oxidant gas all seal, thus the enclosed construction of the intersection of formation or convection current; Second kind of hermetically-sealed construction is that oxidant gas is unlimited fully, only fuel gas sealed.
The subject matter of first kind of hermetically-sealed construction is in the manufacture process of battery pile, because fuel gas and oxidant gas are all in the environment of sealing, pressure reduction is bigger, therefore fuel gas and oxidant gas are easy to generate the problem of collaborating, thereby cause more battery pile waste product, improved the manufacturing cost of battery pile.Though second kind of hermetically-sealed construction can overcome the possibility that fuel gas and oxidant gas high temperature are collaborated mutually, but enter the negative electrode of battery in order to ensure the oxidant gaseous state, an oxidant air cavity need additionally be provided, the oxidant gas chamber easily and battery pile be short-circuited, cause the battery pile can not stable operation.
Summary of the invention
The technical problem that the present invention solves is, a kind of solid-oxide fuel cell stack is provided, and compared with prior art, this battery pile not only avoids fuel gas and oxidant gas to collaborate, and prevent that effectively battery from producing problem of short-circuit, thereby guarantee the operation stability of battery pile.
In order to solve above technical problem, the invention provides a kind of solid-oxide fuel cell stack, comprising:
Last collector plate, lower header plate and be contained in the described stacked structure of going up between collector plate and the lower header plate;
Described stacked structure comprises at least two connectors, is arranged on the battery sheet between two adjacent described connectors, described connector has anode-side and cathode side, anode-side at described connector is provided with the oxidizing gas seal, is provided with the fuel gas seal at the cathode side of described connector;
The oxidizing gas outlet passageway that described stacked structure is provided with airtight oxidizing gas inlet channel, airtight fuel gas inlet channel and airtight fuel gas outlet passageway and opens wide.
Preferably, the both sides of described connector are provided with the salient point of dot matrix arrangement and are arranged on described salient point sealing strip on every side.
Preferably, the sealing strip of described connector cathode side has peristome, and described peristome and described fuel gas seal form described unlimited oxidizing gas outlet passageway.
Preferably, described airtight oxidizing gas inlet channel is by being arranged on oxidizing gas air admission hole on the described oxidizing gas seal, being arranged on oxidizing gas air admission hole on the described battery sheet, being arranged on oxidizing gas air admission hole on the described connector and being communicated with and forming.
Preferably, described airtight fuel gas runner is by being arranged on fuel gas air admission hole on the described fuel gas seal, being arranged on fuel gas air admission hole on the described battery sheet, being arranged on fuel gas air admission hole on the described connector and being communicated with and forming.
Preferably, described fuel gas outlet passageway is by being arranged on fuel gas venthole on the described oxidizing gas seal, being arranged on fuel gas venthole on the described battery sheet, being arranged on fuel gas venthole on the described connector and being communicated with and forming.
Preferably, the described height that is the salient point of dot matrix arrangement is 0.3～1.0mm.
Preferably, to account for the ratio of described distance piece lateralarea be 10%～50% to effective contact area of contacting with the element of this side of distance piece of the salient point that dot matrix is arranged on the described distance piece.
Preferably, the width of described sealing strip is 2mm～15mm.
Preferably, described upward collector plate, stacked structure are connected by bolt assembly with the lower header plate.
Of the present inventionly provide a kind of solid-oxide fuel cell stack, this battery pile comprises airtight oxidizing gas inlet channel, airtight fuel gas inlet channel, airtight fuel gas outlet passageway and unlimited oxidizing gas outlet passageway.The invention provides the oxidizing gas import sealing in the battery pile, outlet is opened wide.Importing and exporting complete closed with oxidizing gas of the prior art compares, because the oxidizing gas outlet is opened wide, internal gas pressure reduction is littler, mobile more smooth and easy, has solved the possibility that fuel and oxidizing gas are collaborated mutually effectively, has further improved the stability and the output performance of pile operation.Compare with the structure of the complete open type of oxidizing gas of the prior art, the present invention need not additional designs oxidizing gas snout cavity, thereby can avoid causing problems such as pile short circuit.
Description of drawings
Fig. 1 is first kind of execution mode structural representation after the solid-oxide fuel cell stack assembling provided by the invention;
Fig. 2 is second kind of execution mode structural representation after the solid-oxide fuel cell stack assembling provided by the invention;
Fig. 3 is the fractionation schematic diagram of solid-oxide fuel cell stack shown in Figure 1;
Fig. 4 is the connector cathode side schematic diagram in the solid-oxide fuel cell stack shown in Figure 3;
Fig. 5 is the fuel gas seal schematic diagram of the connector cathode side among Fig. 3;
Fig. 6 is the connector anode-side schematic diagram among Fig. 3;
Fig. 7 is the oxidizing gas seal schematic diagram of connector anode-side among Fig. 3;
Fig. 8 is the nickel foam schematic diagram;
Fig. 9 is a monocell anode surface schematic diagram;
Figure 10 is a monocell cathode plane schematic diagram shown in Figure 9;
Figure 11 is the I-V curve of the battery pile test in the embodiment of the invention 2;
Figure 12 is the attenuation curve figure of the battery pile in the embodiment of the invention 3;
Figure 13 is monocell attenuation curve figure in the battery pile in the embodiment of the invention 3.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
See also Fig. 1, be a kind of execution mode schematic diagram of solid-oxide fuel cell stack provided by the invention, comprise collector plate 1 and lower header plate 2 and be contained in the described stacked structure of going up between collector plate and the lower header plate 3, last collector plate 1 and lower header plate 2 add press fit by screw arbor assembly, and screw arbor assembly is preferably the screw arbor assembly of metal material.In the present embodiment, screw arbor assembly 4 comprises screw rod 41 and two bolts 42, preprocessing has the screw rod of positioning screw to support 1a on four limits of last collector plate, on four limits of lower header plate also preprocessing have with described on the screw rod of collector plate support the corresponding screw rod in 1a position and support.Screw rod is positioned at after screw rod supports 1a and go up, respectively from the last collector plate outside and the lower header plate outside at two outer ends screw-in bolts of screw rod, will go up collector plate, stacked structure, lower header plate and add press fit by screwing bolt then.The present invention adopts screw arbor assembly will go up collector plate, lower header plate and stacked structure to add press fit at normal temperatures, and this kind structure is convenient to dismounting, helps the mass assembling and produces.
See also Fig. 2, be the schematic diagram of second kind of execution mode of solid-oxide fuel cell stack provided by the invention.Be that with the difference of first kind of execution mode the battery pile of present embodiment has been carried out further improvement to the fixedly pressuring method of last collector plate, lower header plate and stacked structure.
In the present embodiment, screw arbor assembly comprises screw rod 42, is connected the first screw rod fixture 41 and the second screw rod fixture 42 at described screw rod two ends, the described first screw rod fixture 41 and the second screw rod fixture 42 are arranged on the inboard of collector plate and lower header plate, and described upward collector plate 1, stacked structure 3, lower header plate 3 are added press fit.Described two screw rod fixtures 41,42 have identical structure, below are that example describes with the first screw rod fixture 41.The first screw rod fixture has a screw rod end 41a and the screw thread nose end 41b corresponding with described screw rod end, and the two ends of described screw rod 42 cooperate with the screw thread nose end of described two screw rod fixtures respectively.The screw rod end of described two screw rod fixtures is fixed from the interior sideway swivel of last collector plate and lower header plate respectively; Be processed with the screwed hole that matches with the screw rod end of described two screw rod fixtures respectively on collector plate and the dirty version on described, can realize the press fit that adds by rotating two screw rod fixtures and screw rod like this last collector plate, lower header plate and stacked structure.Compare with first kind of execution mode, the advantage of second kind of execution mode is that the outside of going up collector plate and lower header plate does not have bolt to protrude, therefore the serial or parallel connection of easier realization battery pile.
In second kind of execution mode, screw arbor assembly can be metal material, also can be non-metallic material, as engineering plastics or composite material.When screw arbor assembly is metal material, battery pile carried out high temperature test before, need lay down screw arbor assembly; When screw arbor assembly is non-metallic material such as composite material, before the high temperature test, do not need to lay down screw arbor assembly, therefore more convenient to operate.See also Fig. 3, fractionation schematic diagram for the described solid-oxide fuel cell stack of Fig. 1, described stacked structure comprises a plurality of connectors 11, three connectors have been shown among Fig. 3, the effect of connector is to be used for separating fuel gas and oxidizing gas, fuel gas is a hydrogen in the present embodiment, and oxidizing gas is an air.
The material of connector can be made by stainless steel well known to those skilled in the art, and stainless object lesson can be the connector of materials such as Fe-16Cr, Fe-22Cr, concrete model such as SUS430, but be not limited thereto.For number of connecting pieces, should be two at least, also can be two or more, can decide number of connecting pieces according to the quantity of the monocell that designs.Usually, greater than 1, monocell is arranged between two adjacent connectors number of connecting pieces than the quantity of monocell; The top and the bottom of stacked structure are connector, and the top connector contacts with last collector plate, and the bottom connector contacts with the next part fluid layer.The thickness of described connector is preferably 0.8mm～4mm, more preferably 1.0mm～3mm, more preferably 1.2mm～2.8mm, more preferably 1.5mm～2.5mm.
Please continue referring to Fig. 3, between two adjacent connectors, be provided with monocell 12; Connector 11 has two first type surfaces, for convenience of description, connector in the face of a first type surface of monocell cathode side is called the cathode side of connector, will be called the anode-side of connector with corresponding another first type surface of cathode side; Anode-side at connector is provided with oxidizing gas seal 13, is provided with fuel gas seal 14 at the cathode side of connector.
Described oxidizing gas seal and fuel gas seal are same material, have different structure (following detailed description), can use seal glass well known to those skilled in the art, are A as general formula commonly used in this area
2O
3-SiO
2The seal glass of-BO system, the A in the general formula are represented Al, B, La or Te element, and the B in the general formula represents Mg, Zn, Sr, Ca or F element.
On two first type surfaces of the anode-side of connector and cathode side, all processed the salient point that dot matrix is arranged, the cross sectional shape of salient point can be for cylindrical, also can be for triangle, Long Circle, rectangle and polygon arbitrarily, to this present invention and without particular limitation.
The adding of screw arbor assembly that act on of above-mentioned connector salient point, depress with cell cathode, nickel foam, upward collector plate/elements such as lower header plate contact, and produce the afflux effect.The salient point that dot matrix is arranged can adopt the method for etching well known to those skilled in the art or punching press to realize, the act as a fuel passage of gas or oxidizing gas of the hole between the salient point, and the height of salient point is preferably 0.3～1.0mm, more preferably 0.4～0.9mm.Salient point when pressurization and cell cathode, nickel foam, on effective area that collector plate/elements such as lower header plate contact account for 10%～50% of connector area, be preferably 15%～45%.The bump structure of the present invention's design is easy to enter cell cathode afflux layer inside, thereby has increased catchment effect, improves the pile output performance.
Be processed with sealing strip around salient point that the dot matrix of two first type surfaces of connector is arranged, the effect of sealing strip is to contact the purpose that reaches sealing with seal.Among the present invention, the sealing strip of the anode-side of connector has different structures with the sealing strip of cathode side, below describes in detail.
As shown in Figure 4, be the structural representation of connector cathode side, adopt etching method to process the salient point 11a that dot matrix is arranged on the cathode side of connector, preprocessing goes out cathode side sealing strip 101 around the salient point that dot matrix is arranged; Described cathode side sealing strip 101 comprises the first 101a corresponding with a side of connector, the second portion 101b and the third part 101c that are connected with described first two ends, opening wide with the corresponding part of the 101a of first, have a peristome, promptly the negative electrode sealing strip is a unlimited sealing strip.The height of salient point and sealing strip preferably maintains an equal level, and can salient point effectively be contacted fully with other element maintenance reaching like this.
Between the 101a of first of salient point and described sealing strip, be ventilation groove 111, the width and the air vent hole diameter ratio of ventilation groove are preferably 1/5～1, the degree of depth of ventilation groove is corresponding with bump height, be preferably 0.3～1.0mm, the effect of ventilation groove is as the gas overall channel, and the air between salient point infeeds gas; Described air vent hole is meant the air vent hole that processes from the opposite side sealing strip, is the oxidizing gas air vent hole at cathode side.
On described second portion 101b and third part 101c, be reserved with the position that is used for fabricate fuel gas air admission hole and fuel gas venthole respectively, like this, can on second portion 101b, process fuel gas air admission hole 101d, on third part 101b, process fuel gas venthole 101e.Please be simultaneously referring to Fig. 5, schematic diagram for fuel gas seal 14, be processed with respectively on the fuel gas seal with described distance piece on fuel gas air admission hole 101d and corresponding fuel gas air admission hole 14a and the fuel gas venthole 14b in position of fuel gas venthole 101e, after being fitted in the fuel gas seal on the cathode side sealing strip 101 like this, fuel gas can be sealed in beyond the cathode side, prevent that fuel gas from sneaking into this zone.In addition, because cathode side sealing strip 101 opens wide, after the fuel gas seal 101 of therefore fitting, this part of opening wide can be not sealed yet, can be used as the exit passageway of unlimited oxidizing gas like this.
As shown in Figure 6, structural representation for the connector anode-side, the same with cathode side, adopt the method for etching or punching press to process the salient point 11b that dot matrix is arranged, preprocessing goes out anode-side sealing strip 102 around the salient point that dot matrix is arranged, anode-side sealing strip 102 comprises corresponding the 4th part 102a with the 101a of first, the 5th part 102b and the 6th part 102c that are connected with described the 4th part two ends, the 7th part 102d that connects described the 5th part 102b and the 6th part 102c, different with the negative electrode sealing strip, the anode seal limit is the sealing strip of a sealing, and the height of salient point and sealing strip maintains an equal level.
Be ventilation groove 112 between the 5th part 102b of salient point and described sealing strip and the 6th part, this ventilation groove is identical with the ventilation groove structure of cathode side, does not repeat them here.The effect of ventilation groove 112 is the gas overall channels that act as a fuel, and the fuel gas that the fuel gas air admission hole is entered infeeds in the slit between the salient point, perhaps the fuel gas in the slit between the salient point is sent the fuel gas venthole.
On described the 4th part 102a, be reserved with the position that is used to process the oxidizing gas air admission hole, can process oxidizing gas air admission hole 102e in this position; Please be simultaneously referring to Fig. 7, schematic diagram for oxidizing gas seal 13, be processed with oxidizing gas on the oxidizing gas seal and enter hole 13a, after being fitted in this oxidizing gas seal on the anode-side sealing strip, oxidizing gas can be sealed in beyond the anode-side, prevent that oxidizing gas from sneaking into this zone.In addition, after fuel gas can enter from fuel gas air admission hole 101d, through the hole between this regional salient point, can discharge from fuel gas venthole 101e then, promptly fuel gas channel all seals.
Width for above-mentioned anode-side sealing strip or cathode side sealing strip is preferably 2mm～15mm, more preferably 3mm～10mm, more preferably 4mm～9mm.
In the stacked structure of present embodiment, the salient point on the cathode side of the top connector of stacked structure contacts with last collector plate, carries out sealing-in by the fuel gas seal between the sealing strip of this cathode side and the last collector plate; Salient point on the anode-side of the bottom connector of stacked structure contacts with the lower header plate, carries out sealing-in by the oxidizing gas seal between the sealing strip of this anode-side and the lower header plate.
According to the present invention, in stacked structure, the cathode side of connector carries out sealing-in by the negative electrode of fuel gas seal and battery, the anode-side of connector is carried out sealing-in by the anode of oxidizing gas seal and battery, between the anode of the anode-side of connector and battery, also be provided with nickel foam, as shown in Figure 8, be the structural representation of nickel foam, on nickel foam, also need process oxidizing gas air inlet gap.
In addition, in order to assemble the stacked structure of said structure, need also process on the monocell with connector on oxidizing gas air admission hole, fuel gas air admission hole, the corresponding hole of fuel gas venthole so that form gas passage.For monocell, can use anode-supported flat-plate solid-oxide individual fuel cell, also can use dielectric support solid oxide fuel monocell, the shape of monocell is not limit, and is preferably square.
Solid-oxide fuel cell stack provided by the invention can be prepared as follows:
The preferred mode of laser cutting of using processes 3 holes on monocell, respectively as oxidizing gas air admission hole, fuel gas air admission hole and fuel gas venthole, as shown in Figure 9, is monocell anode surface schematic diagram, and Figure 10 is a monocell cathode plane schematic diagram;
Get the connector of the good salient point of etching or punching press, on the position corresponding, also process three holes, respectively as oxidizing gas air admission hole, fuel gas air admission hole and fuel gas venthole with 3 holes of described monocell;
Get seal glass with the corresponding position of oxidizing gas air admission hole of described distance piece on process a hole, then as the oxidizing gas seal; Other get seal glass with the fuel gas air admission hole of described distance piece and the corresponding position of fuel gas venthole on process two holes, seals then acts as a fuel;
Get nickel foam with the corresponding position of oxidizing gas air admission hole of described connector on process gap, as the oxidizing gas inlet channel.
Get the above-mentioned connector that processes, monocell, oxidizing gas seal, fuel gas seal, nickel foam, last collector plate, lower header plate and bolt and be assembled into solid-oxide fuel cell stack shown in Figure 1, the single cell units number can be selected according to the design needs, and there is no particular restriction to this present invention.Then, can test stack performance according to method well known to those skilled in the art.
Below with specific embodiment effect of the present invention is described, but protection scope of the present invention is not limited by the following examples.
Embodiment 1:
It is standby to prepare following element:
Monocell: preparing specification is the anode-supported monocell sheet of 10cm * 10cm, anode is, negative electrode is, the method that adopts laser cutting process on the edge part of monocell the oxidizing gas air admission hole, with two perpendicular edge parts of described oxidizing gas air admission hole place edge part on process fuel gas air admission hole and fuel gas venthole;
Connector: material is SUS430, and thickness is 2.5mm, etches the boss point that dot matrix is arranged (dot matrix arrangement) in the anode-side of this distance piece and cathode side, and the height of the boss point of two sides is 0.5mm; According to Fig. 4 and shown in Figure 6, process anode-side sealing strip and cathode side sealing strip that width is 3.5mm respectively, wherein the cathode side sealing strip has an opened portion.
Adopt the mode of laser cutting to process fuel gas air admission hole, fuel gas venthole, oxidizing gas air admission hole respectively in described fuel gas air admission hole position, fuel gas venthole position, oxidizing gas air admission hole position;
Oxidizing gas seal: get Al
2O
3-SiO
2-MgO (concrete model of seal glass or composition) seal glass with described distance piece on process the oxidizing gas air admission hole on the corresponding position of oxidizing gas air admission hole;
Fuel gas seal: get Al
2O
3-SiO
2-MgO (concrete model of seal glass or composition) seal glass with distance piece on process fuel gas air admission hole and fuel gas venthole respectively on the fuel gas air inlet sky, the corresponding position of fuel gas venthole;
Nickel foam: process oxidizing gas air admission hole and fuel gas runner hole;
Last collector plate, employing SUS430 is a material, the method for machining preprocessing screw arbor assembly of going out to be used to pressurize respectively on three limits of last collector plate;
The lower header plate, employing SUS430 is a material, the preprocessing screw arbor assembly that goes out to be used to pressurize respectively on three limits of lower header plate.
Get collector plate, lower header plate and 5 connectors, 5 oxidizing gas seals, 5 fuel gas seals, 4 monocells, 4 nickel foam and dress up the battery pile assembly of Unit 4, get bolt assembly then and will fix collector plate and lower header plate according to the der group of last collector plate/fuel gas seal/(distance piece/oxidizing gas seal (nickel foam)/monocell) * 4/ distance piece/oxidizing gas seal/lower header plate.
Battery pile assembly after the assembling was warming up to 850 ℃ from room temperature through 12 hours, is incubated 0～200kg test performance under different condition that pressurizes after 4 hours, the I-V curve that obtains as shown in figure 11.
Among Figure 11: when with the battery pile of present embodiment preparation 850,200kg pressure and H
2: Air=8: 19sccmcm
-2Under the condition, behind the reductase 12 hour, the maximum power when recording electric current and being 32A is 79.6W, and corresponding maximum power density is 0.306Wcm
-2Work as H
2: Air=8: 19sccmcm
-2The time, the maximum power when recording electric current and being 39A is 100.5W, corresponding maximum power density is 0.385Wcm
-2The maximum power density that obtains the battery pile of present embodiment preparation according to the curve fit among Figure 11 is 0.427Wcm
-2, the open circuit voltage 〉=4.1V of battery pile, the battery pile of present embodiment preparation has higher power density.
Keep H
2: Air=12: 31sccmcm
-2Gas flow is constant, and stack temperature is reduced to 800 ℃ by 850oC through 50min, is incubated after 1.5 hours, records maximum power 89W when electric current is 38A, and corresponding maximum power density is 0.342W cm
-2
Get collector plate, lower header plate and 6 connectors, 6 oxidizing gas seals, 6 fuel gas seals, 5 monocells, 5 nickel foam and dress up the battery pile assembly of Unit 5, get bolt assembly then and will fix collector plate and lower header plate according to the der group of last collector plate/fuel gas seal/(distance piece/oxidizing gas seal (nickel foam)/monocell) * 5/ distance piece/oxidizing gas seal/lower header plate.
Battery pile assembly after the assembling is warming up to 850 ℃ from room temperature through 12 hours, is incubated the 0～400kg test I-V curve that pressurizes after 4 hours.I-V curve test finishing back is carried out attenuation test at 800 ℃ to it under the 8A condition, result such as Figure 12 and shown in Figure 13, Figure 12 is a battery pile overall attenuation curve, Figure 13 is the attenuation curve of the monocell in the battery pile, from the result of Figure 12 and Figure 13 as can be seen, this battery pile and cell heap unit thereof be through not decay after the test of 75h, stop constant-current discharge after, the open circuit voltage of battery pile has reached 5.7V, and the open circuit voltage of cell reaches and all surpassed 1.1V.
More than Solid Oxide Fuel Cell provided by the present invention is described in detail.Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
Claims (10)
1. a solid-oxide fuel cell stack is characterized in that, comprising:
Last collector plate, lower header plate and be contained in the described stacked structure of going up between collector plate and the lower header plate;
Described stacked structure comprises at least two connectors, is arranged on the battery sheet between two adjacent described connectors, described connector has anode-side and cathode side, anode-side at described connector is provided with the oxidizing gas seal, is provided with the fuel gas seal at the cathode side of described connector;
The oxidizing gas outlet passageway that described stacked structure is provided with airtight oxidizing gas inlet channel, airtight fuel gas inlet channel and airtight fuel gas outlet passageway and opens wide.
2. solid-oxide fuel cell stack according to claim 1 is characterized in that, the both sides of described connector are provided with the salient point of dot matrix arrangement and are arranged on described salient point sealing strip on every side.
3. solid-oxide fuel cell stack according to claim 1 is characterized in that the sealing strip of described connector cathode side has peristome, and described peristome and described fuel gas seal form described unlimited oxidizing gas outlet passageway.
4. solid-oxide fuel cell stack according to claim 1, it is characterized in that described airtight oxidizing gas inlet channel is by being arranged on oxidizing gas air admission hole on the described oxidizing gas seal, being arranged on oxidizing gas air admission hole on the described battery sheet, being arranged on oxidizing gas air admission hole on the described connector and being communicated with and forming.
5. solid-oxide fuel cell stack according to claim 1, it is characterized in that described airtight fuel gas runner is by being arranged on fuel gas air admission hole on the described fuel gas seal, being arranged on fuel gas air admission hole on the described battery sheet, being arranged on fuel gas air admission hole on the described connector and being communicated with and forming.
6. solid-oxide fuel cell stack according to claim 1, it is characterized in that described fuel gas outlet passageway is by being arranged on fuel gas venthole on the described oxidizing gas seal, being arranged on fuel gas venthole on the described battery sheet, being arranged on fuel gas venthole on the described connector and being communicated with and forming.
7. according to each described solid-oxide fuel cell stack of claim 1 to 6, it is characterized in that the described height that is the salient point of dot matrix arrangement is 0.3～1.0mm.
8. solid-oxide fuel cell stack according to claim 7 is characterized in that, the ratio that effective contact area that the salient point that dot matrix is arranged on the described connector contacts with the element of this side of connector accounts for described distance piece lateralarea is 10%～50%.
9. solid-oxide fuel cell stack according to claim 7 is characterized in that, the width of described sealing strip is 2mm～15mm.
10. solid-oxide fuel cell stack according to claim 9 is characterized in that, described upward collector plate, stacked structure are connected by bolt assembly with the lower header plate.
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| CN201110024540.XA CN102122722B (en) | 2011-01-21 | 2011-01-21 | Solid oxide fuel cell stack |
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| CN201110024540.XA CN102122722B (en) | 2011-01-21 | 2011-01-21 | Solid oxide fuel cell stack |
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| CN102122722B CN102122722B (en) | 2014-04-09 |
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|---|---|---|---|---|
| CN103117360A (en) * | 2013-01-21 | 2013-05-22 | 西安理工大学 | Preparation method of organic nickel oxide resistance storage film and electrical property test method thereof |
| CN103296301A (en) * | 2012-03-02 | 2013-09-11 | 中国科学院宁波材料技术与工程研究所 | Non-voltage electric pile of anode supporting panel-type solid oxide fuel battery |
| CN105405993A (en) * | 2015-11-05 | 2016-03-16 | 中国科学院宁波材料技术与工程研究所 | Flat plate structured Na-Ni battery energy storage module and Na-Ni battery pack |
| CN106784957A (en) * | 2016-12-23 | 2017-05-31 | 宁波索福人能源技术有限公司 | Conductive structure is sealed between a kind of fuel cell pack and fixed block |
| CN107248586A (en) * | 2017-06-27 | 2017-10-13 | 上海中弗新能源科技有限公司 | A kind of SOFC pile |
| WO2018113035A1 (en) * | 2016-12-23 | 2018-06-28 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack array and power generation system having same |
| CN108365243A (en) * | 2018-04-27 | 2018-08-03 | 东莞深圳清华大学研究院创新中心 | A kind of solid-oxide fuel cell stack |
| CN108365242A (en) * | 2018-02-09 | 2018-08-03 | 东莞深圳清华大学研究院创新中心 | A kind of solid oxide fuel cell |
| CN109830732A (en) * | 2019-01-25 | 2019-05-31 | 哈尔滨工业大学（深圳） | A kind of electric pile structure of asymmetry flat structure high-temperature solid fuel cell |
| CN111492521A (en) * | 2017-07-24 | 2020-08-04 | 努威拉燃料电池有限责任公司 | System and method for fuel cell stack compression |
| CN112886043A (en) * | 2019-11-29 | 2021-06-01 | 国家能源投资集团有限责任公司 | Cell stack end plate, fuel cell stack and fuel cell stack tower |
| CN113241456A (en) * | 2021-04-27 | 2021-08-10 | 国家电投集团氢能科技发展有限公司 | Fuel cell |
| CN116885234A (en) * | 2023-07-27 | 2023-10-13 | 广东佛燃科技有限公司 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373843A (en) * | 2007-08-20 | 2009-02-25 | 中国科学院过程工程研究所 | Demountable fuel sealing plate type solid-oxide fuel battery stack |
| CN101821873A (en) * | 2007-06-28 | 2010-09-01 | 布罗托尼克斯技术公司 | Fuel cell stacks and methods |
| CN101872867A (en) * | 2009-04-24 | 2010-10-27 | 财团法人工业技术研究院 | Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof |
| WO2010136214A1 (en) * | 2009-05-28 | 2010-12-02 | Ezelleron Gmbh | Oxide-ceramic high-temperature fuel cell |
-
2011
- 2011-01-21 CN CN201110024540.XA patent/CN102122722B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821873A (en) * | 2007-06-28 | 2010-09-01 | 布罗托尼克斯技术公司 | Fuel cell stacks and methods |
| CN101373843A (en) * | 2007-08-20 | 2009-02-25 | 中国科学院过程工程研究所 | Demountable fuel sealing plate type solid-oxide fuel battery stack |
| CN101872867A (en) * | 2009-04-24 | 2010-10-27 | 财团法人工业技术研究院 | Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof |
| WO2010136214A1 (en) * | 2009-05-28 | 2010-12-02 | Ezelleron Gmbh | Oxide-ceramic high-temperature fuel cell |
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| CN103296301A (en) * | 2012-03-02 | 2013-09-11 | 中国科学院宁波材料技术与工程研究所 | Non-voltage electric pile of anode supporting panel-type solid oxide fuel battery |
| CN103117360B (en) * | 2013-01-21 | 2015-06-24 | 西安理工大学 | Preparation method of organic nickel oxide resistance storage film and electrical property test method thereof |
| CN103117360A (en) * | 2013-01-21 | 2013-05-22 | 西安理工大学 | Preparation method of organic nickel oxide resistance storage film and electrical property test method thereof |
| CN105405993B (en) * | 2015-11-05 | 2018-09-07 | 中国科学院宁波材料技术与工程研究所 | A kind of the sodium nickel-based battery energy-storage module and sodium nickel-based battery group of flat structure |
| CN105405993A (en) * | 2015-11-05 | 2016-03-16 | 中国科学院宁波材料技术与工程研究所 | Flat plate structured Na-Ni battery energy storage module and Na-Ni battery pack |
| CN106784957A (en) * | 2016-12-23 | 2017-05-31 | 宁波索福人能源技术有限公司 | Conductive structure is sealed between a kind of fuel cell pack and fixed block |
| WO2018113035A1 (en) * | 2016-12-23 | 2018-06-28 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack array and power generation system having same |
| CN106784957B (en) * | 2016-12-23 | 2019-04-30 | 宁波索福人能源技术有限公司 | Conductive structure is sealed between a kind of fuel cell pack and fixed block |
| CN107248586A (en) * | 2017-06-27 | 2017-10-13 | 上海中弗新能源科技有限公司 | A kind of SOFC pile |
| CN107248586B (en) * | 2017-06-27 | 2019-07-19 | 上海中弗新能源科技有限公司 | A kind of solid oxide fuel cell pile |
| CN111492521B (en) * | 2017-07-24 | 2023-08-25 | 努威拉燃料电池有限责任公司 | System and method for fuel cell stack compression |
| CN111492521A (en) * | 2017-07-24 | 2020-08-04 | 努威拉燃料电池有限责任公司 | System and method for fuel cell stack compression |
| CN108365242A (en) * | 2018-02-09 | 2018-08-03 | 东莞深圳清华大学研究院创新中心 | A kind of solid oxide fuel cell |
| CN108365243A (en) * | 2018-04-27 | 2018-08-03 | 东莞深圳清华大学研究院创新中心 | A kind of solid-oxide fuel cell stack |
| CN108365243B (en) * | 2018-04-27 | 2024-04-30 | 广东清大创新研究院有限公司 | Solid oxide fuel cell stack |
| CN109830732A (en) * | 2019-01-25 | 2019-05-31 | 哈尔滨工业大学（深圳） | A kind of electric pile structure of asymmetry flat structure high-temperature solid fuel cell |
| CN112886043A (en) * | 2019-11-29 | 2021-06-01 | 国家能源投资集团有限责任公司 | Cell stack end plate, fuel cell stack and fuel cell stack tower |
| CN113241456A (en) * | 2021-04-27 | 2021-08-10 | 国家电投集团氢能科技发展有限公司 | Fuel cell |
| CN113241456B (en) * | 2021-04-27 | 2022-05-24 | 国家电投集团氢能科技发展有限公司 | Fuel cell |
| CN116885234A (en) * | 2023-07-27 | 2023-10-13 | 广东佛燃科技有限公司 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
| CN116885234B (en) * | 2023-07-27 | 2024-05-28 | 广东佛燃科技有限公司 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
| CN117613308A (en) * | 2024-01-22 | 2024-02-27 | 中国科学院宁波材料技术与工程研究所 | Public channel drainage structure of fuel cell and fuel cell |
| CN117613308B (en) * | 2024-01-22 | 2024-05-24 | 中国科学院宁波材料技术与工程研究所 | Public channel drainage structure of fuel cell and fuel cell |
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