CN100536217C - Integral type fuel battery stack tandem method - Google Patents
Integral type fuel battery stack tandem method Download PDFInfo
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- CN100536217C CN100536217C CNB2006101172528A CN200610117252A CN100536217C CN 100536217 C CN100536217 C CN 100536217C CN B2006101172528 A CNB2006101172528 A CN B2006101172528A CN 200610117252 A CN200610117252 A CN 200610117252A CN 100536217 C CN100536217 C CN 100536217C
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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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Abstract
This invention relates to a method for connecting integrated fuel battery stacks in series including a central collecting board, a back end board, four or more than four fuel battery stacks and conductors, in which, the collecting boards in the stacks are processed the same, two stacks at both sides of the collecting board are in a same group and poles of a single battery are in the same orientation, and the two stacks are connected in series by conductor passing through the central collecting board vertically, and poles of each single battery in the two stacks of another adjacent group are in the same orientation but opposite to the poles of that of adjacent group and positive and negative poles of two adjacent stack groups are connected in series by conductors between their own collecting boards so leads of positive and negative are at the same side of the entire stack.
Description
Technical field
The present invention relates to fuel cell, the series connection method of the integrated fuel cell pile of relate in particular to a kind of compact conformation, being convenient to install.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen fuel and oxidant can be changed into electric energy and product.The internal core parts of this device are membrane electrode (Membrane Electrode Assembly are called for short MEA), and membrane electrode (MEA) is made up of as carbon paper a proton exchange membrane, two porous conductive materials of film two sides folder.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary faces of film and carbon paper is as the metal platinum catalyst.The electronics that the membrane electrode both sides can will take place to generate in the electrochemical reaction process with conductive body is drawn by external circuit, constitutes current circuit.
At the anode tap of membrane electrode, fuel can pass porousness diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form cation, cation can pass proton exchange membrane by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidant (as oxygen), as air, pass porousness diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms anion by infiltration.The cation of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms product.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidant (or pure oxygen is an oxidant), and fuel hydrogen has just produced hydrogen cation (or being proton) in the catalytic electrochemical reaction of anode region.Proton exchange membrane helps the hydrogen cation to move to the cathodic region from the anode region.In addition, proton exchange membrane is separated the air-flow and the oxygen containing air-flow of hydrogen fuel, they can not mixed mutually and produces explosion type reaction.
In the cathodic region, oxygen obtains electronics on catalyst surface, forms anion, and moves the hydrogen cation reaction of coming, reaction of formation product water with the anode region.In the Proton Exchange Membrane Fuel Cells that adopts hydrogen, air (oxygen), anode reaction and cathode reaction can be expressed in order to following equation:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: 1/2O
2+ 2H
++ 2e → H
2O
In typical Proton Exchange Membrane Fuel Cells, membrane electrode (MEA) generally all is placed in the middle of the pole plate of two conductions, and quarter is milled by die casting, punching press or machinery in the surface that every block of flow guiding electrode plate contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These flow guiding electrode plates can be the pole plates of metal material, also can be the pole plates of graphite material.Water conservancy diversion duct on these flow guiding electrode plates and guiding gutter import fuel and oxidant the anode region and the cathodic region on membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there is a membrane electrode, the membrane electrode both sides are respectively the guide plate of anode fuel and the guide plate of cathode oxidant.These guide plates are both as the current collector motherboard, also as the mechanical support on membrane electrode both sides, guiding gutter on the guide plate acts as a fuel again and enters the passage of anode, cathode surface with oxidant, and as the passage of taking away the water that generates in the fuel cell operation process.
In order to increase the gross power of whole Proton Exchange Membrane Fuel Cells, two or more monocells can be connected into battery pack or be unified into battery pack by the mode that tiles usually by straight folded mode.In straight folded, in-line battery pack, can there be guiding gutter on the two sides of a pole plate, and wherein one side can be used as the anode guide face of a membrane electrode, and another side can be used as the cathode diversion face of another adjacent membranes electrode, and this pole plate is called bipolar plates.A series of monocell connects together by certain way and forms a battery pack.Battery pack tightens together by front end-plate, end plate and pull bar usually and becomes one.
A typical battery stack generally includes: the water conservancy diversion import and the flow-guiding channel of (1) fuel and oxidant gas are distributed to fuel (as hydrogen, methyl alcohol or the hydrogen-rich gas that obtained by methyl alcohol, natural gas, gasoline) and oxidant (mainly being oxygen or air) in the guiding gutter of each anode, cathode plane equably after reforming; (2) import and export and the flow-guiding channel of cooling fluid (as water) are evenly distributed to cooling fluid in each battery pack inner cooling channel, the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated and take battery pack out of after dispel the heat; (3) outlet of fuel and oxidant gas and corresponding flow-guiding channel, fuel gas and oxidant gas are when discharging, and portability goes out the liquid that generates in the fuel cell, the water of steam state.Usually, the import and export of all fuel, oxidant, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
Proton Exchange Membrane Fuel Cells both can be used as the dynamical system of delivery vehicles such as car, ship, can be used as movable type or stationary power generation station again.
Fuel cell generation mainly supports operational system to form by fuel cell pack and battery pile.As the application of car, ship power or power station powerful fuel cell generation aspect, requirement can be exported tens kilowatts, even the power of output hundreds of kilowatt.To powerful like this output requirement, the fuel cell pack and support operational system of corresponding high-power output must be arranged.
The fuel cell pack engineering design and the manufacturing of high-power output, analyze from technology and manufacturing cost aspect, generally can't adopt a huge high-power single heaping method that constitutes by the many blocks of positive plates of large active surface, integrate the method that reaches high-power output requirement by a plurality of middle low power fuel battery stack modules but adopt.
Existing extensive, powerful fuel cell as shown in Figure 1, wherein 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 is current collector motherboard on each battery pile module, makes both positive and negative polarity.17 is the total afflux of central authorities, water conservancy diversion panel.A is first pair of corresponding two Battery packs heap module, and B is second pair of corresponding two Battery packs heap module, and C, D are the 3rd, the 4th pair of corresponding two Battery packs heap module.Both positive and negative polarity is connected to 3 and connects with 2 between existing each pile, and 1 connects with 8, and 7 connect with 6, and 5 connect with 12, and 11 connect with 10, and 9 connect with 16, and 15 connect with 14, and last 13 and 4 current collector motherboards are as the outside output of whole integral type fuel battery both positive and negative polarity.As can be seen, some both positive and negative polarity series connection lead-in wires of this integral type fuel battery are in the both sides of whole integrated form pile, and it is more that it crosses over free-standing galvanic pile module quantity, and the lead-in wire spatial placement is very long very unreasonable.
Shenli Science and Technology Co Ltd, Shanghai invented a kind of make the favorably situated method of positive and negative lead wires of integrated fuel cell (application for a patent for invention number: 200510026002.9, utility application number: 200520041695.4).As shown in Figure 2, label 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 is made both positive and negative polarity for the current collector motherboard on each battery pile module of expression.17 is the total afflux motherboards of central authorities.A is first pair of corresponding two Battery packs heap module, and B is second pair of corresponding two Battery packs heap module, and C, D are the 3rd, the 4th pair of corresponding two Battery packs heap module.Both positive and negative polarity is connected to 3 and connects with 2 between each pile of the present invention, and 1 connects with 5, and 6 connect with 7, and 8 connect with 12, and 11 connect with 10, and 9 connect with 13, and 14 connect with 15, and last 16 and 4 current collector motherboards are as the outside output of whole integral type fuel battery both positive and negative polarity.As can be seen, the positive and negative lead-in wire of this integral type fuel battery is at the whole stack homonymy, and it is more reasonable that space spans is arranged than original lead-in wire.
It is just the same that but this design needs each guide plate processing in two galvanic pile modules of same group of the fuel cell left and right sides, and make each monocell both positive and negative polarity orientation in full accord, like this these two modules just can be directly flow-collection mother-board by separately be connected in series; And each guide plate processing of fuel cell is just the same in two galvanic pile modules of another adjacent group, but but become mirror image processing with each guide plate of fuel cell in the adjacent set, though make each monocell both positive and negative polarity orientation in this group, arrangement in full accord, but it is just the opposite with the both positive and negative polarity orientation of adjacent set, this two adjacent groups galvanic pile module just can be easy to by flow-collection mother-board separately realize that both positive and negative polarity is connected in series like this, make positive and negative lead wires be in the homonymy of whole stack, and on the space connects, realize distance minimization.
This integrated fuel cell pile need be processed two kinds of different bafflers, and complex process is installed inconvenience, and cost is higher, causes very burden to batch process.Therefore the integral type fuel battery baffler that generally adopts at present is identical, and positive and negative lead wires connects as shown in Figure 3, the positive and negative orientation of each monocell of battery pile A, B that central authorities collector plate 18 front and back are provided with is identical, by conducting rod 20 series connection that are arranged in central collector plate, the positive and negative orientation of battery pile C, D monocell is identical with A, B, battery pile B, C draw series connection by lead 19 diagonal members, thereby make whole integrated form pile series connection.But this method of attachment is owing to need one of peripheral hardware to take up room than long lead, waste material, in case the outer insulating barrier of lead wear and tear to some extent, very dangerous.
Summary of the invention
Purpose of the present invention is exactly that a kind of series connection method of saving material, conserve space, safe and reliable integrated fuel cell pile is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of series connection method of integrated fuel cell pile, it is characterized in that, this method comprises central collector plate, end plate, four or more fuel cell pack, electric conductor, each guide plate processing is just the same in described four or more fuel cell pack, by to each water conservancy diversion duct in the central collector plate and the setting of pod apertures, making two piles of central collector plate both sides is one group, each monocell both positive and negative polarity orientation of this group is consistent, be connected in series by the electric conductor that vertically is arranged in central collector plate between these two piles, and each monocell both positive and negative polarity orientation is consistent in two piles of another adjacent group, but with each monocell both positive and negative polarity opposite orientation of adjacent set, the two adjacent groups pile realizes that by the electric conductor between flow-collection mother-board separately both positive and negative polarity is connected in series, and makes positive and negative lead wires be in the homonymy of whole integrated form pile; Be provided with hydrogen, air, cooling fluid access way in the described central collector plate, each fluid is from central collector plate two ends or collector plate turnover pile middle or before each pile end plate, and each fluid access way is imported and exported with each pile corresponding fluids and linked to each other.
Form the slit vertical between the two adjacent groups pile of described fuel cell pack with central collector plate, air in the two adjacent groups pile corresponding central collector plate, hydrogen, cooling fluid turnover fluid bore are identical with this slit spacing, and each corresponding same fluid passes in and out pod apertures and is and is symmetrical arranged.
Homonymy two adjacent groups pile on the described central collector plate, wherein in one group be close to first and with water conservancy diversion field on the central collector plate guide plate in opposite directions be the airflow guiding field, in another group be close to first and with water conservancy diversion field on the central collector plate guide plate in opposite directions be the hydrogen flow guiding field.
Described electric conductor shape comprises cylinder, cuboid, cube, ungulate body.
The described electric conductor that is arranged in central collector plate has 2～20.
The both positive and negative polarity orientation of the pile that described central collector plate both sides are provided with is identical, the pile both positive and negative polarity opposite orientation of the adjacent setting in front and back.
Compared with prior art, be provided with central collector plate in the middle of the fuel cell pack of the present invention, carry out being provided with the rear end collector plate before the end plate of integrated encapsulation, hydrogen, air and cooling fluid can be drawn from the fuel cell pack different azimuth as required, compact conformation, be convenient to install, and can cooperate a kind of length-width ratio to design greater than 1: 1 flow guide plate of fuel cell.
Description of drawings
Fig. 1 is that existing integrated fuel cell pile positive and negative lead wires is arranged schematic diagram;
Fig. 2 arranges schematic diagram for existing another kind of integrated fuel cell pile positive and negative lead wires;
Fig. 3 is existing integrated fuel cell pile both positive and negative polarity connection diagram;
Fig. 4 is the integrated fuel cell pile both positive and negative polarity connection diagram in the embodiment of the invention;
Fig. 5 is the profile of Fig. 4;
Fig. 6 is the baffler before the flow-collection mother-board on Fig. 4 battery pile central authorities collector plate.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
As Fig. 4,5, shown in 6, the series connection method of the integrated fuel cell pile of a kind of 50KW～100KW, it comprises four groups of fuel cell pack A, B, C, D and a central collector plate, each guide plate processing is just the same in these four groups of fuel cell packs, A, be arranged at central collector plate both sides before and after the B, two each monocell both positive and negative polarity orientations of galvanic pile module are in full accord, be connected in series by the electric conductor 20 that vertically is arranged in central collector plate between these two galvanic pile modules, be close to and with water conservancy diversion field on the central collector plate guide plate in opposite directions be the airflow guiding field, be anodal; And each guide plate of the fuel cell in each guide plate of fuel cell and the adjacent set is arranged and each monocell both positive and negative polarity opposite orientation among two galvanic pile module C, the D of another adjacent group, near central collector plate for leading the hydrogen pole plate, it is negative pole, two adjacent groups galvanic pile module B, D realize that by the electric conductor between flow-collection mother-board separately 19 both positive and negative polarity is connected in series, and make positive wire 21, negative wire 22 be in the homonymy of whole stack; Air enters air duct from central collector plate one end, enters pile from air intake 23, go out pile from air outlet slit 26 after, flow out from the central collector plate other end; Hydrogen enters from central collector plate one end, flows into piles through hydrogen inlet 24, flows out pile along 28 collector plate before the end plate, cooling fluid is from central collector plate one end, enter pile through cooling fluid inlet 25, after flowing out from cooling fluid outlet 27, flow out from the central collector plate other end.As shown in Figure 6, this integrated fuel cell pile B, baffler before the flow-collection mother-board of the most close central collector plate 18 of D pile: airflow guiding slot plate 29, hydrogen flow guiding slot plate 30, the adjacent two pile B of described fuel cell pack, form the slit vertical between the D with central collector plate 18, two adjacent groups pile B, air inlet 23 in the D corresponding central collector plate, hydrogen inlet 24, cooling fluid influent stream body opening 25, air gas outlet 26, hydrogen gas outlet 28, it is identical with this slit spacing respectively that cooling fluid goes out fluid bore 27, promptly two air inlets 23 are identical to the spacing in this slit, two air ventholes 26 are identical to the spacing in this slit, corresponding hydrogen, cooling fluid is imported and exported also to divide and is clipped to this clearance distance and equates, each corresponding pod apertures is and is oppositely arranged, and is in recently or highest distance position.One of baffler on the described central collector plate before the flow-collection mother-board of the adjacent pile of homonymy is an airflow guiding slot plate 29, and another piece is a hydrogen flow guiding slot plate 30.
In the collector plate that described hydrogen, air, cooling fluid access way can be located in the central collector plate or end plate is preceding, the collector plate turnover pile of each fluid from central collector plate two ends or before each pile end plate, and each fluid access way is imported and exported with each pile corresponding fluids and is linked to each other.
Hydrogen, air, cooling fluid also can enter central collector plate from the slit one or both ends (pile B, D in the middle of or A, C in the middle of) vertical with central collector plate in the middle of the pile, entering pile from both sides through same distance respectively, flowing out in the collector plate before central collector plate or end plate.
Claims (6)
1. the series connection method of an integrated fuel cell pile, it is characterized in that, this method comprises central collector plate, end plate, four fuel cell packs, the design of electric conductor, each guide plate processing is just the same in described four fuel cell packs, by to each fluid access way in the central collector plate and the setting of pod apertures, making two piles of central collector plate both sides is one group, each monocell both positive and negative polarity orientation of this group is consistent, be connected in series by the electric conductor that vertically is arranged in central collector plate between these two piles, and each monocell both positive and negative polarity orientation is consistent in two piles of another adjacent group, but with each monocell both positive and negative polarity opposite orientation of adjacent set, the two adjacent groups pile realizes that by the electric conductor between flow-collection mother-board separately both positive and negative polarity is connected in series, and makes positive and negative lead wires be in the homonymy of whole integrated form pile; Be provided with hydrogen, air, cooling fluid access way in the described central collector plate, each fluid is from central collector plate two ends or collector plate turnover pile middle or before each pile end plate, and each fluid access way is imported and exported with each pile corresponding fluids and linked to each other.
2. the series connection method of a kind of integrated fuel cell pile according to claim 1, it is characterized in that, form the slit vertical between the two adjacent groups pile of described fuel cell pack with central collector plate, air in the two adjacent groups pile corresponding central collector plate, hydrogen, cooling fluid turnover pod apertures are identical with this slit spacing, and each corresponding same fluid passes in and out pod apertures and is and is symmetrical arranged.
3. the series connection method of a kind of integrated fuel cell pile according to claim 1 is characterized in that, one of baffler on the described central collector plate before the flow-collection mother-board of adjacent two piles of homonymy is an airflow guiding slot plate, and another piece is a hydrogen flow guiding slot plate.
4. the series connection method of a kind of integrated fuel cell pile according to claim 1 is characterized in that, described electric conductor shape comprises cylinder, cuboid, cube, ungulate body.
5. the series connection method of a kind of integrated fuel cell pile according to claim 1 is characterized in that, the described electric conductor that is arranged in central collector plate has 2～20.
6. the series connection method of a kind of integrated fuel cell pile according to claim 1 is characterized in that, the both positive and negative polarity orientation of the pile that described central collector plate both sides are provided with is identical, the pile both positive and negative polarity opposite orientation of the adjacent setting in front and back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101172528A CN100536217C (en) | 2006-10-18 | 2006-10-18 | Integral type fuel battery stack tandem method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101172528A CN100536217C (en) | 2006-10-18 | 2006-10-18 | Integral type fuel battery stack tandem method |
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| Publication Number | Publication Date |
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| CN101165957A CN101165957A (en) | 2008-04-23 |
| CN100536217C true CN100536217C (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101172528A Active CN100536217C (en) | 2006-10-18 | 2006-10-18 | Integral type fuel battery stack tandem method |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944582A (en) * | 2010-09-10 | 2011-01-12 | 鸥瑞智诺能源科技(北京)有限公司 | Novel stack battery connection method |
| CN104681830B (en) * | 2013-12-03 | 2017-12-26 | 航天新长征电动汽车技术有限公司 | A kind of fuel cell module packaging body |
| CN107658489A (en) * | 2017-08-28 | 2018-02-02 | 清华大学 | A kind of installation, the fuel cell module of convenient disassembly |
| JP2021514103A (en) * | 2018-02-20 | 2021-06-03 | ヌヴェラ・フュエル・セルズ，エルエルシー | High voltage fuel cell stack |
| DE102019110317A1 (en) * | 2019-04-18 | 2020-10-22 | e.Go REX GmbH | Modular range extender system for an electrically powered motor vehicle and an electrically powered motor vehicle with a range extender |
| CN111900427B (en) * | 2019-05-06 | 2023-07-25 | 上海轩玳科技有限公司 | Fuel cell stack and series-parallel connection method thereof |
| DE112021007720T5 (en) * | 2021-09-24 | 2024-03-21 | Robert Bosch Gesellschaft mit beschränkter Haftung | FUEL CELL STACKING MODULE |
| CN114744235B (en) * | 2022-03-25 | 2024-04-09 | 东风汽车集团股份有限公司 | Fuel cell module, fuel cell system, fuel cell power system, and vehicle |
| CN115051012A (en) * | 2022-07-11 | 2022-09-13 | 同济大学 | Multi-section multi-chamber megawatt fuel cell stack |
| CN116072944B (en) * | 2022-12-07 | 2024-06-07 | 山东大学 | Single-stack megawatt fuel cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101718A (en) * | 1976-04-09 | 1978-07-18 | Hitachi Chemical Company, Ltd. | Battery of laminated structure having battery frame of novel structure |
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2006
- 2006-10-18 CN CNB2006101172528A patent/CN100536217C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101718A (en) * | 1976-04-09 | 1978-07-18 | Hitachi Chemical Company, Ltd. | Battery of laminated structure having battery frame of novel structure |
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| CN101165957A (en) | 2008-04-23 |
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Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 Owner name: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 |
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Effective date of registration: 20131223 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Shen-Li High Tech Co., Ltd. Address before: 201401 Fengxian District International Industrial Development Zone, Shanghai Yang Industrial Park, an international one of the 27 buildings Patentee before: Shanghai Shen-Li High Tech Co., Ltd. |