CN1469500A - Composite leading and collecting plate for fuel cell and its manufacture - Google Patents
Composite leading and collecting plate for fuel cell and its manufacture Download PDFInfo
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- CN1469500A CN1469500A CNA021360618A CN02136061A CN1469500A CN 1469500 A CN1469500 A CN 1469500A CN A021360618 A CNA021360618 A CN A021360618A CN 02136061 A CN02136061 A CN 02136061A CN 1469500 A CN1469500 A CN 1469500A
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- conservancy diversion
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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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- 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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Abstract
The composite leading and collecting plate for fuel cell is produced through molding parallelly arranged metal blocks. The plate has in its periphery air inlet holes, air outlet holes, hydrogen inlet holes, hydrogen outlet holes, cooling water inlet holes, cooling water outlet holes and sealing groove. There are air guide groove on the right side of the base board between the air inlet holes and the air outlet holes, hydrogen guide groove on the back side of the base board between the hydrogen inlet holes and the hydrogen outlet holes, and cooling water grooves on the two sides of the base board between the cooling water inlet holes and the cooling water outlet holes. The sealing grooves are set around various fluid inlet holes and outlet holes. Compared with available technology, the present invention has compact structure, advanced technological process and low making cost.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of water conservancy diversion current collection compound polar plate and manufacture method thereof that is used for fuel cell.
Background technology
The purposes of Proton Exchange Membrane Fuel Cells is very extensive, can be used as the dynamical system of delivery vehicles such as all cars, ship, also can be used as electricity generation system as stationary power generation station, ground, removable power supply etc.
At present, the cost of Proton Exchange Membrane Fuel Cells is higher, and main cause is that some critical component material price of formation fuel cell is higher.What wherein account for fuel cell component material cost maximum is guide plate and collector plate (account for Proton Exchange Membrane Fuel Cells cost 70%).
Higher as guide plate and collector plate material requirements in the Proton Exchange Membrane Fuel Cells, must satisfy: certain mechanical strength and hardness are arranged, conduct electricity, heat conduction, characteristic such as corrosion-resistant.The material that can meet above-mentioned requirements at present fully has only the expensive material of minority, for example: high-quality pure graphite cake material, high-quality titanium alloy sheet material, filled gold plate or the like.
In order to reduce cost, the cheap substitution material of report is arranged at present, be nothing but: 1. adopt the cheap metal plate, handle as the corrosion resistant plate surface being carried out modification; 2. adopt graphite to add resin and be hot pressed into composite plate.
These methods have certain price advantage though compare with pure graphite cake material, titanium or the filled gold plate of costliness, and there are following serious defective in the guide plate and the collector plate material that are used in the Proton Exchange Membrane Fuel Cells:
When 1, adopting cheap metal plate such as corrosion resistant plate to make guide plate in the Proton Exchange Membrane Fuel Cells and collector plate, because metallic plate is single electric conductor, when requiring the fuel cell output HIGH voltage, can only increase the quantity of guide plate and collector plate or the conversion (and the power of consumable fuel cell own is wanted in the conversion of DC-DC) by DC-DC, thereby increase the cost of whole fuel cell.
2, adopt graphite to add resin and be hot pressed into composite plate, the heat that fuel cell list pile is produced can't transmit heat radiation on the plane of guide plate and collector plate, can only before and after fuel cell list pile, increase heat radiation water conservancy diversion, collector plate, thereby increase the quantity of water conservancy diversion, collector plate, thereby increase the cost of whole fuel cell.
3, really can water conservancy diversion on single water conservancy diversion, collector plate, that the zone of current collection accounts for the effective area rate of whole water conservancy diversion collector plate is not high, because 6 of pod apertures must be arranged on every block of plate, and each face must have seal groove, installation sealing ring (as shown in Figure 1).
4, adopt above two kinds of fuel cells that the material pole plate is constituted, if when obtaining high voltage output, must increase quantity of polar plate so, make this fuel cell longitudinal length very long, this application space to fuel cell limited length system is a very big defective.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of water conservancy diversion current collection compound polar plate and manufacture method thereof of being used for fuel cell that improves effective area, reduces manufacturing cost for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of water conservancy diversion current collection compound polar plate that is used for fuel cell, it is characterized in that, comprise many pieces of metal modules, the ambroin substrate, described many pieces of metal modules are parallel arranged at grade, and be embedded in the ambroin substrate, be provided with the air inlet hole around the described ambroin substrate, the air venthole, the hydrogen air admission hole, the hydrogen venthole, the cooling water inlet opening, cooling water apopore and seal groove, substrate front side between described air inlet hole and the air venthole is provided with the air conducting groove, substrate reverse side between described hydrogen air admission hole and the hydrogen venthole is provided with the hydrogen flow guide groove, substrate between described cooling water inlet opening and the cooling water apopore just, reverse side respectively is provided with bosh, and described seal groove is located at corresponding fluid passing hole, groove and substrate periphery.
Described metal module is the rectangular slab of a longitudinal length less than lateral length, this rectangular slab is provided with at least one fabrication hole, vertical upper and lower surface of this rectangular slab is the groove and the raised line shape of symmetry, its horizontal the right and left bar is established a par, wherein, described right par is provided with and can exports connector for electric current, voltage that any connection in series-parallel connects, is provided with connecting hole on this connector.
Described metal module is the alloy material that iron, copper, aluminium and rare metal are formed.
Described ambroin substrate many pieces of metal modules of parallel arranged at grade is spaced from each other and makes each metal module be the mutually insulated state.
A kind of manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell is characterized in that this manufacture method comprises following processing step:
The first step, module processing, metal material is heated to 420～800 ℃, with the speed of extrusion stretching machine with 1.2～2.8 meters/minute, extrusion stretching goes out upper and lower surface and is the groove of symmetry and the sheet material of raised line shape, this sheet material is through aligning, quench, scale, the conventional treatment of timeliness, make a standard sections, the rectangular metal module of certain width is being cut apart or struck out to this section bar with the groove direction vertical with raised line, two, the length direction left and right sides of this rectangular metal module respectively is provided with a par, be provided with one in right par and can supply output current, the connector of voltage, this connector is provided with connecting hole;
Second step, the pole plate injection moulding, the many pieces of metal modules Width parallel arranged at grade that the first step is made, and place mould with this ordered state, wherein, the connector of each metal module is placed outside the mould, behind the matched moulds on injection molding machine with temperature, the 80～140kg/cm of ambroin raw material with 200～300 ℃
2Pressure injection-moulded moulding, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding; Be provided with air inlet hole, air venthole, hydrogen air admission hole, hydrogen venthole, cooling water inlet opening, cooling water apopore and seal groove around this water conservancy diversion current collection compound polar plate, substrate front side between described air inlet hole and the air venthole is provided with the air conducting groove, substrate reverse side between described hydrogen air admission hole and the hydrogen venthole is provided with the hydrogen flow guide groove, substrate positive and negative between described cooling water inlet opening and the cooling water apopore respectively are provided with bosh, and described seal groove is located at corresponding fluid passing hole, groove and substrate periphery.
Processing of described module and pole plate injection step can also adopt following method: at first with many pieces of metal plates in conplane Width parallel arranged, and place mould with this ordered state, press the fixing a plurality of high purity graphite posts of positional alignment of guiding gutter at the upper and lower surface of this metal plate, matched moulds then, wherein the connector with each metal module places outside the mould, on injection molding machine with temperature, the 80～140kg/cm of ambroin raw material with 200～300 ℃
2The moulding of pressure integral molded plastic, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding.
Described module processing and pole plate injection step can also adopt following method: the rectangular flat metal plate that at first will have fabrication hole, place mould, then behind the polyvinylidene fluoride mixing granulation with the graphite powder of 70%-80% weight and 20%-30% weight, inject mould, on the injection molding machine with 200-300 ℃ temperature, 80-140kg/cm
2Pressure under injection mo(u)lding, through cooling, obtained groove graphite metal module after the demoulding; Groove graphite metal module is arranged with above-mentioned many pieces, in conplane Width parallel arranged, and place the pole plate mould, with temperature, the 80-140kg/cm of injection molding machine at 200-300 ℃ with this ordered state
2Pressure under the integral molded plastic moulding, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding.
In the described module procedure of processing, described conventional treatment process comprises one or more of following technology: the resulting rectangular metal module of a. is charging into nitrogen under 150～600 ℃ of high temperature and under 2～5 atmospheric pressure or other inert gas was heat-treated 1～20 hour, its lattice surface is changed, to improve decay resistance; B. resulting rectangular metal module surface plates one deck nickel-phosphorus alloy protective layer, to improve its decay resistance; C. resulting rectangular metal module surface is coated with the protective layer of 1～20 micron of one deck, with further raising its surperficial decay resistance and electric conductivity.
The ambroin raw material that described compound polar plate injection mo(u)lding is adopted is poly-2,6-benzyl ether (M-PPO), thermoplastic resin or thermosetting resin, described thermoplastic resin or thermosetting resin comprise polytetrafluoroethylene, polyvinylidene fluoride or epoxy resin, phenolic resins.
Also can add non-conductive fiber in the ambroin raw material that described compound polar plate injection molding process is adopted, comprise glass fibre.
Compared with prior art, the present invention has the following advantages:
1, can be by the requirement of grade, series, manufacturing process and parts enforcement portion product production standardization help reducing production costs, and promote the industrialization of fuel cell.
2, several even tens water conservancy diversion, current collection conversion zone, a shared baffle is imported and exported and a cover sealing ring, thereby the effective area rate in real water conservancy diversion, current collection zone on the raising pole plate, the quantity of minimizing water conservancy diversion, collector plate is to reach the purpose that reduces cost.
3, heat radiation at grade (because adopt metal material, thermal diffusivity is fabulous), thus area of dissipation reduced, need not to use the heat radiation pole plate, can reduce the quantity of pole plate, to reach the purpose that reduces cost.
4, the connector that design simultaneously has the battery pile series and parallel to use on the alloy block of normal width can make one or several ideal fuels battery pile need as the case may be, carries out serial or parallel connection arbitrarily, for the practical application of fuel cell is from now on provided convenience.Solved perplex the high electric current of fuel cell circle for a long time, low-voltage is easy, and the bottleneck problem of low current, high voltage difficulty.
5, connector also can play air-cooled fin effect.
6, connector also can be used as the test point of the survey temperature spot of monocell heap and voltage, electric current, so that provide signal to control system, and the foundation of judging as flow, pressure, temperature and the safety failure of control hydrogen, air, water.
Description of drawings
Fig. 1 is the structural representation of existing water conservancy diversion, collector plate;
Fig. 2 is the structural representation of water conservancy diversion current collection compound polar plate of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the structural representation of the metal module of water conservancy diversion current collection compound polar plate of the present invention;
Fig. 5 is the B-B cutaway view of Fig. 4;
Fig. 6 is the structural representation of the graphite post metal plate module of water conservancy diversion current collection compound polar plate of the present invention;
Fig. 7 is the structural representation that clamps mould after the C-C of Fig. 6 analyses and observe up and down;
Fig. 8 is the structural representation of the graphite metal module of water conservancy diversion current collection compound polar plate of the present invention;
Fig. 9 is the structural representation of the embodiment 1 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 10 is the structural representation of the metal module among Fig. 9;
Figure 11 is the D-D cutaway view of Figure 10;
Figure 12 is the structural representation of the application example 1 of the embodiment 1 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 13 is the structural representation of the application example 2 of the embodiment 1 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 14 is the structural representation of the metal module design one of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 15 is the structural representation of the metal module design two of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 16 is the structural representation of the metal module design three of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 17 is the structural representation of the application example 3 of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 18 is the electrode plate structure schematic diagram of the application example 4 of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 19 is the structural representation of the application example 4 of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 20 is the structural representation of the application example 5 of the embodiment 2 of water conservancy diversion current collection compound polar plate of the present invention;
Figure 21 is the process chart of water conservancy diversion current collection compound polar plate manufacture method of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments and application example, the invention will be further described.
As Fig. 2, shown in Figure 3, a kind of water conservancy diversion current collection compound polar plate that is used for fuel cell, it comprises many pieces of metal modules 1, ambroin substrate 2, described many pieces of metal modules 1 are parallel arranged at grade, and be embedded in ambroin substrate 2, be provided with air inlet hole 3 around the described ambroin substrate 2, air venthole 4, hydrogen air admission hole 5, hydrogen venthole 6, cooling water inlet opening 7, cooling water apopore 8 and seal groove 9, substrate front side between described air inlet hole 3 and the air venthole 4 is provided with air conducting groove 10, substrate reverse side between described hydrogen air admission hole 5 and the hydrogen venthole 6 is provided with hydrogen flow guide groove 11, substrate between described cooling water inlet opening 7 and the cooling water apopore 8 just, reverse side respectively is provided with bosh 12,13, described seal groove 9 is located at corresponding fluid passing hole, groove and substrate periphery.Described metal module end is provided with and can be provided with connecting hole 15 on this connector for electric current, the voltage output connector 14 of string and connection arbitrarily.
Make the technical solution following (as shown in figure 21) of above-mentioned water conservancy diversion current collection compound polar plate:
Scheme one
The first step: adopt alloy standard profiled sheeting that groove is arranged through processed (annotate: but the useful life of corrosion-resistant and conductive processing fuel cell and operational environment need choose wantonly in 3,4, the 5 following methods one or more) after obtain the alloy module.
1. iron, copper, aluminium are smelted into the alloy pole, and be heated to 420～800 ℃, with the speed of about 1000 tons extruders with 1.2～2.8 meters/minute, squeeze out the sheet material (as Fig. 5) of groove, form standard sections (because in metal forming technology, extrusion stretching method efficient height, low cost of manufacture), this sheet alloy has certain decay resistance.
2. above standard sections is cut apart or strike out certain width groove alloy module arranged, this has groove alloy module upper punch that several fabrication holes 16 (as Fig. 4) are arranged.
Above normal width have groove alloy module under high temperature (150～600 ℃), high pressure (2～5 atmospheric pressure), to charge into nitrogen or other inert gas was heat-treated in 1-20 hour, its lattice surface is changed, improve decay resistance.
4. the groove alloy module surface that has of the normal width after the above heat treatment plates the nickel-phosphorus alloy protective layer that one deck is corrosion-resistant, conduct electricity, and further improves its surperficial decay resistance.The last corrosion-resistant and electrically-conducting paint that is coated with one deck 1-20 micron on its surface further improves its surperficial decay resistance and electric conductivity.
Second step: the first step is finished, through corrosion-resistant, the treatable normal width of conductivity groove alloy module and M-PPO or corrosion-resistant, high temperature resistant fatigue proof engineering plastics injection mo(u)lding arranged, can form " hydrogen, water, oxygen, heat radiation, water conservancy diversion, the current collection multi-function metal compound polar plate " that be used for fuel cell of a standard.(as Fig. 2 and Fig. 3).Be the warping resistance intensity of combination between the reinforcement metal module when injection moulding, can add non-conductive fiber, as glass fibre.Described engineering plastics are thermoplastic resin such as polytetrafluoroethylene, polyvinylidene fluoride; Or thermosetting resin such as epoxy resin, phenolic resins etc.
Scheme two
The first step: adopt the alloy dressing plate of slotless, dull and stereotyped upper punch has some fabrication holes 16, the adhesion (as Fig. 6) of alloy flat board when processing injection moulding to increase the road, back.
Second step: with the fixing high purity graphite post 1 of mould 3, combine (as Fig. 7) by injection moulding with alloy dressing plate 2,1 distribution of graphite post should be decided according to designed runner, and principle makes graphite post 1 injection moulding on the protruding wall of conductance that is spacedly distributed.Inject M-PPO or corrosion-resistant, high temperature resistant, fatigue proof engineering plastics moulding in the mould 3 of graphite post 1 and alloy flat board 2 with being fixed with, can form " hydrogen, water, oxygen, heat radiation, water conservancy diversion, the current collection multi-function metal compound polar plate " that be used for fuel cell of a standard.(as Fig. 2 and Fig. 3).Be the warping resistance intensity of combination between the reinforcement metal module when injection moulding, can add non-conductive fiber, as glass fibre.Described engineering plastics are thermoplastic resin such as polytetrafluoroethylene, polyvinylidene fluoride; Or thermosetting resin such as epoxy resin, phenolic resins etc.
Scheme three
The first step: adopt the alloy dressing plate 2 of slotless, dull and stereotyped upper punch has some fabrication holes 16, when increasing the processing injection moulding of road, back and the adhesion of alloy material.
Second step: behind graphite powder (70%-80% weight) and PVDF (polyvinylidene fluoride 20%-30% weight) mixing granulation, with the alloy dressing plate injection mo(u)lding of the slotless of the first step (as shown in Figure 8, wherein 1 is the blend of graphite powder and PVDF), become a graphite metal module that groove is arranged.Described have the groove distribution to decide according to designed runner.
The 3rd step: with second step finish groove graphite metal module and M-PPO or corrosion-resistant, high temperature resistant fatigue proof engineering plastics moulding arranged, can form the fuel cell " hydrogen, water, oxygen, heat radiation, water conservancy diversion, afflux multi-function metal compound polar plate " of a standard.Be the warping resistance intensity of combination between the reinforcement metal module when injection moulding, can add non-conductive fiber, as glass fibre.Engineering plastics, thermoplastic resin such as polytetrafluoroethylene, polyvinylidene fluoride.Thermosetting resin such as epoxy resin, phenolic resins etc.
Embodiment 1:
The following fuel cell pack water conservancy diversion of 1KW level current collection compound polar plate
If: a single pile current density is 0.8A/CM
2, voltage is 0.6V, water conservancy diversion current collection compound polar plate design monolithic following (as Fig. 9):
1) single piece of effective water conservancy diversion of module, collector region area:
6CM×1.1CM＝6.6CM
2
2) electric current of single piece of module:
Scheme one is for having the groove metal module, structure such as Fig. 4, shown in Figure 5, size such as Figure 10, shown in Figure 11; Scheme two is a graphite post metal plate module, structure such as Fig. 6, shown in Figure 7, and size is also as Figure 10, shown in Figure 11; Scheme three is the graphite metal module, structure as shown in Figure 8, size is also as Figure 10, shown in Figure 11.
Annotate: the size of actual module, should decide according to bulk and power calculation that the user provided.The present embodiment module is of a size of effective water conservancy diversion current collection long 6CM in zone, wide 1.1CM.Contain 11 pieces of metal module or graphite post flat sheet mould or graphite metal modules in the water conservancy diversion collector plate of the compound injection moulding of every monolithic.
Application example 1:
The 36V of fuel cell bicycle requirement, the fuel cell pack of 5A be can satisfy, as shown in figure 12, voltage 36V, the combination of electric current 5A bicycle fuel cell pack and lead connection diagram are; This fuel cell pack is combined by 7 embodiment, 1 described water conservancy diversion current collection compound polar plate A, is provided with proton exchange membrane electrode B between this compound polar plate A.Clamping proton exchange membrane electrode B constitutes 10 groups of monocells of mutually insulated (annotate: the 1st piece of metal module of each compound polar plate is humidification module C between the 1st compound polar plate A and the 2nd compound polar plate A, all the other 10 is operational module D), 6 groups of monocells of same module No. are connected mutually and are constituted a pile, constitute 10 groups of piles altogether from 11 pieces of modules of the 2nd piece of module to the, with lead E series connection, electric current is connect to load F by the 11st piece of output of the 2nd piece, the 7th compound polar plate of first compound polar plate respectively with the tail of these 10 groups of piles, first operational module D.The output voltage of this pile is 36V, and electric current is 5A.
The parameter that provides according to embodiment 1, voltage, the electric current of this battery pile are calculated as follows: 1, voltage calculates, and the voltage of every group of (as the 2nd group) pile is 0.6V * 6=3.6V, and battery pile is in series by 10 groups of piles, therefore, the voltage of battery pile is 3.6V * 10=36V; 2, electric current calculates, and the electric current of every group of (as the 2nd group) pile is 5A, and battery pile is in series by 10 groups of piles, and therefore, the voltage of battery pile also is 5A.
Application example 2:
Can satisfy the 24V of fuel cell bicycle requirement, the fuel cell pack of 10A, as shown in figure 13, voltage 24V, the combination of electric current 10A bicycle fuel cell pack and lead connection diagram.This fuel cell pack is combined by nine embodiment, 1 described water conservancy diversion current collection compound polar plate A, is provided with proton exchange membrane electrode B between this compound polar plate A.Clamping proton exchange membrane electrode B constitutes 10 groups of monocells of mutually insulated (annotate: the 1st piece of metal module of each compound polar plate is humidification module C between the 1st compound polar plate A and the 2nd compound polar plate A, all the other 10 is operational module D), 8 groups of monocells of same module No. are connected mutually and are constituted a pile, constitute 5 groups of piles altogether from 6 pieces of modules of the 2nd piece of module to the, constitute 5 groups of piles in addition altogether from 11 pieces of modules of the 7th piece of module to the.The initial and end operational module D of above-mentioned each 5 groups of pile is connected with lead E, electric current connects the end to load F behind the 6th piece, the 11st piece output-parallel of the 1st compound polar plate, connects the other end to load F again behind the 2nd piece, the 7th piece output-parallel of the 9th compound polar plate.The output voltage of this pile is 24V, and electric current is 10A.
The parameter that provides according to embodiment 1, voltage, the electric current of this battery pile are calculated as follows: 1, voltage calculates, and the voltage of every group of (as the 2nd group) pile is 0.6V * 8=4.8V, and battery pile is formed in parallel after being connected by 5 groups of piles again, therefore, the voltage of battery pile is 4.8V * 5=24V; 2, electric current calculates, and the electric current of every group of (as the 2nd group) pile is 5A, and battery pile is formed in parallel by 5 groups of pile series connection again, and therefore, the electric current of battery pile also is 5A * 2=10A.
Embodiment 2: about 10KW～200KW fuel cell pack
If; Requirement voltage is 0.6V, and electric current is the water conservancy diversion of 50A fuel cell, the area (as Figure 14) of current collection metal module: needing only when design current is 100A, 200A increases water conservancy diversion, the area of current collection metal module and the size (as Figure 15, Figure 16) of other correlation function parts.
One, high-power metallic module size design principle: (annotate: actual design should be decided according to usage space and power that the user provides)
Design one: voltage is the design (as Figure 14) of the metal module of 0.6V, electric current 50A
Effectively water conservancy diversion, current collection area are:
Design two: voltage is the design (as Figure 15) of the metal module of 0.6V, electric current 100A
Effectively water conservancy diversion, current collection area are:
Design three: voltage is that the effective water conservancy diversion of design (as Figure 16), the current collection area of the metal module of 0.6V, electric current 150A is:
Two, specification:
1, every is adopted water conservancy diversion, the current collection compound polar plate of injection moulding compound injection molded by 11 pieces of metal modules and engineering plastics.Every the 1st piece of metal module and the 1st piece of metal module of adjacent another sheet by common proton exchange membrane electrode, also can be used as humidification zone.Actual size should be depending on the design.(scheme two is graphite post and alloy flat sheet mould, and scheme three is the graphite metal module).
2, according to the different voltage of user, current requirements, obtain gross power after, can confirm the water conservancy diversion of injection moulding, the sheet number of current collection compound polar plate :=[gross power/(single module Power x 10)]+1
3, meet any serial or parallel connection of electrical principles according to different voltages, current requirements, extremely convenient.
Application example 3:
Be used for mobile power station or electric power peculiar to vessel, power is 10KW, and voltage is that 200V, electric current are the fuel cell pack of 50A.
1, design: the water conservancy diversion, the current collection compound polar plate that adopt the metal module (as Figure 14) of embodiment 2 designs one 50A.
2, the sheet number of water conservancy diversion, current collection compound polar plate:
3, as shown in figure 17, voltage is that 200V, electric current are fuel cell pack combination and the lead connection diagram of 50A.
4, specification: this fuel cell pack is combined by 35 water conservancy diversion current collection compound polar plate A, is provided with proton exchange membrane electrode B between this compound polar plate A.Clamping proton exchange membrane electrode B constitutes 10 groups of monocells of mutually insulated (annotate: the 1st piece of metal module of each composite plate is humidification module C between the 1st compound polar plate A and the 2nd compound polar plate A, all the other 10 is operational module D), 34 groups of monocells of same module No. are connected mutually and are constituted a pile, constitute 10 groups of piles altogether from 11 pieces of modules of the 2nd piece of module to the, the head and the tail operational module D of these 10 groups of piles is connected with lead E, and electric current the 2nd piece of output of the 11st piece, the 35th compound polar plate of first compound polar plate respectively connects to load F.The output voltage of this pile is that 200V, electric current are 50A.
Voltage, the electric current of this battery pile are calculated as follows: 1. voltage calculates, and the voltage of every group of (as the 2nd group) pile is 0.6V * 34 ≈ 20V, and battery pile is in series by 10 groups of piles, and the voltage of battery pile is 200V thus; 2. electric current calculates, and the electric current of every group of (as the 2nd group) pile is 50A, and battery pile is in series by 10 groups of piles, and therefore, the electric current of battery pile is 50A.
Application example 4:
The fuel cell that is used for kart, requiring power is 50KW, and voltage is 330V, and electric current is the fuel cell pack of 150A.
1, design: adopt the metal module of embodiment 2 design one 50A (as Figure 14) and design two 100A (as Figure 15) to mix water conservancy diversion, the current collection compound polar plate that uses.
2, the injection moulding scheme of water conservancy diversion, current collection compound polar plate, as shown in figure 18, the injection moulding scheme schematic diagram of water conservancy diversion, current collection compound polar plate.
3, water conservancy diversion, current collection complex poles plate number:
4, as shown in figure 19, voltage 330V, fuel cell pack combination and the lead connection diagram of electric current 150A.
5, specification: as shown in figure 19,113 metal modules as shown in figure 18 of this fuel cell pack mix the water conservancy diversion, the current collection compound polar plate that use and combine.Between this compound polar plate A, be provided with proton exchange membrane electrode B.Clamping proton exchange membrane electrode B between the 1st compound polar plate A and the 2nd compound polar plate A, (annotate: first piece of metal module of each compound polar plate is humidification module C to 10 groups of monocells of formation mutually insulated, all the other are operational module D), 112 groups of monocells of same module No. are connected mutually, constitute a pile, constitute 5 groups of pile D1 altogether from 6 pieces of modules of the 2nd piece of module to the, module constitutes 5 groups of pile D2 altogether from the 7th piece to the 11st piece, and the pile of D1 module group is in parallel with the pile of D2 module group; Promptly the 6th of the 1st pole plate the piece of metal module and the 11st piece of metal module are connected to load F one end with lead E, and the 2nd piece of metal module of the 113rd compound polar plate and the 7th piece of metal module are connected to the load F other end with lead E.The output voltage of this composite type pile is 330V, and electric current is 150A.
Voltage, the electric current of this battery pile are calculated as follows: 1. voltage calculates, and every group of voltage as D1 module group pile is 0.6V * 112 slice * 5 groups=300V, and D1 is in parallel with D2, so the voltage of battery pile also is 300V; 2. electric current calculates, it is 50A that D1 group metal module adopts the metal module electric current of 50A, be in series by 5 groups, therefore the electric current of battery pile is 50A, and D2 group metal module adopts the metal module of 100A, is in series by 5 groups, its electric current is 100A, in the entire cell heap, be formed in parallel because of the D1 group is piled with the D2 Battery pack, so the electric current of entire cell heap is 150A.
Application example 5:
Be used to drive big bus, submarine, power is 180KW, and voltage is 1200V, and electric current is the fuel cell pack of 150A.
1, design: the water conservancy diversion, the current collection compound polar plate that adopt embodiment 2 design three 150A (as Figure 16) metal modules.
2, the sheet number of water conservancy diversion, current collection compound polar plate:
3, as shown in figure 20, combination of the fuel cell pack of voltage 1200V, electric current 150A and lead connection diagram.
4, specification: this fuel cell pack is combined by 201 water conservancy diversion current collection compound polar plate A, is provided with proton exchange membrane electrode B between this compound polar plate A.Should adopt water conservancy diversion, the current collection compound polar plate of embodiment 2 designs three 150A metal modules with example 5, being connected of the combination of this compound polar plate and lead is identical with application example 3.The pile voltage that combines at last is 1200V, and electric current is 150A.
Claims (10)
1. water conservancy diversion current collection compound polar plate that is used for fuel cell, it is characterized in that, comprise many pieces of metal modules, the ambroin substrate, described many pieces of metal modules are parallel arranged at grade, and be embedded in the ambroin substrate, be provided with the air inlet hole around the described ambroin substrate, the air venthole, the hydrogen air admission hole, the hydrogen venthole, the cooling water inlet opening, cooling water apopore and seal groove, substrate front side between described air inlet hole and the air venthole is provided with the air conducting groove, substrate reverse side between described hydrogen air admission hole and the hydrogen venthole is provided with the hydrogen flow guide groove, substrate between described cooling water inlet opening and the cooling water apopore just, reverse side respectively is provided with bosh, and described seal groove is located at corresponding fluid passing hole, groove and substrate periphery.
2. a kind of water conservancy diversion current collection compound polar plate that is used for fuel cell according to claim 1, it is characterized in that, described metal module is the rectangular slab of a longitudinal length less than lateral length, this rectangular slab is provided with at least one fabrication hole, vertical upper and lower surface of this rectangular slab is the groove and the raised line shape of symmetry, its horizontal the right and left bar is established a par, wherein, described right par is provided with and can exports connector for electric current, voltage that any connection in series-parallel connects, is provided with connecting hole on this connector.
3. a kind of water conservancy diversion current collection compound polar plate that is used for fuel cell according to claim 1 is characterized in that, described metal module is the alloy material that iron, copper, aluminium and rare metal are formed.
4. a kind of water conservancy diversion current collection compound polar plate that is used for fuel cell according to claim 1 is characterized in that, described ambroin substrate many pieces of metal modules of parallel arranged at grade is spaced from each other and makes each metal module be the mutually insulated state.
5. manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell is characterized in that this manufacture method comprises following processing step:
The first step, module processing, metal material is heated to 420～800 ℃, with the speed of extrusion stretching machine with 1.2～2.8 meters/minute, extrusion stretching goes out upper and lower surface and is the groove of symmetry and the sheet material of raised line shape, this sheet material is through aligning, quench, scale, the conventional treatment of timeliness, make a standard sections, the rectangular metal module of certain width is being cut apart or struck out to this section bar with the groove direction vertical with raised line, two, the length direction left and right sides of this rectangular metal module respectively is provided with a par, be provided with one in right par and can supply output current, the connector of voltage, this connector is provided with connecting hole;
Second step, the pole plate injection moulding, the many pieces of metal modules Width parallel arranged at grade that the first step is made, and place mould with this ordered state, wherein, the connector of each metal module is placed outside the mould, behind the matched moulds on injection molding machine with temperature, the 80～140kg/cm of ambroin raw material with 200～300 ℃
2Pressure injection-moulded moulding, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding; Be provided with air inlet hole, air venthole, hydrogen air admission hole, hydrogen venthole, cooling water inlet opening, cooling water apopore and seal groove around this water conservancy diversion current collection compound polar plate, substrate front side between described air inlet hole and the air venthole is provided with the air conducting groove, substrate reverse side between described hydrogen air admission hole and the hydrogen venthole is provided with the hydrogen flow guide groove, substrate positive and negative between described cooling water inlet opening and the cooling water apopore respectively are provided with bosh, and described seal groove is located at corresponding fluid passing hole, groove and substrate periphery.
6. a kind of manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell according to claim 5, it is characterized in that, processing of described module and pole plate injection step can also adopt following method: at first with many pieces of metal plates in conplane Width parallel arranged, and place mould with this ordered state, press the fixing a plurality of high purity graphite posts of positional alignment of guiding gutter at the upper and lower surface of this metal plate, matched moulds then, wherein the connector with each metal module places outside the mould, on injection molding machine with the temperature of ambroin raw material with 200～300 ℃, 80～140kg/cm
2The moulding of pressure integral molded plastic, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding.
7. a kind of manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell according to claim 5, it is characterized in that, described module processing and pole plate injection step can also adopt following method: the rectangular flat metal plate that at first will have fabrication hole, place mould, then behind the polyvinylidene fluoride mixing granulation with the graphite powder of 70%-80% weight and 20%-30% weight, inject mould, on the injection molding machine with 200-300 ℃ temperature, 80-140kg/cm
2Pressure under injection mo(u)lding, through cooling, obtained groove graphite metal module after the demoulding; Groove graphite metal module is arranged with above-mentioned many pieces, in conplane Width parallel arranged, and place the pole plate mould, with temperature, the 80-140kg/cm of injection molding machine at 200-300 ℃ with this ordered state
2Pressure under the integral molded plastic moulding, through cooling, obtain water conservancy diversion current collection compound polar plate after the demoulding.
8. a kind of manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell according to claim 5, it is characterized in that, in the described module procedure of processing, described conventional treatment process comprises one or more of following technology: the resulting rectangular metal module of a. is charging into nitrogen under 150～600 ℃ of high temperature and under 2～5 atmospheric pressure or other inert gas was heat-treated 1～20 hour, its lattice surface is changed, to improve decay resistance; B. resulting rectangular metal module surface plates one deck nickel-phosphorus alloy protective layer, to improve its decay resistance; C. resulting rectangular metal module surface is coated with the protective layer of 1～20 micron of one deck, with further raising its surperficial decay resistance and electric conductivity.
9. according to claim 5 or 6 described a kind of manufacture methods that are used for the water conservancy diversion current collection compound polar plate of fuel cell, it is characterized in that, the ambroin raw material that described compound polar plate injection mo(u)lding is adopted is poly-2,6-benzyl ether, thermoplastic resin or thermosetting resin, described thermoplastic resin or thermosetting resin comprise polytetrafluoroethylene, polyvinylidene fluoride or epoxy resin, phenolic resins.
10. a kind of manufacture method that is used for the water conservancy diversion current collection compound polar plate of fuel cell according to claim 5, it is characterized in that, also can add non-conductive fiber in the ambroin raw material that described compound polar plate injection molding process is adopted, comprise glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021360618A CN1469500A (en) | 2002-07-17 | 2002-07-17 | Composite leading and collecting plate for fuel cell and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021360618A CN1469500A (en) | 2002-07-17 | 2002-07-17 | Composite leading and collecting plate for fuel cell and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1469500A true CN1469500A (en) | 2004-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021360618A Pending CN1469500A (en) | 2002-07-17 | 2002-07-17 | Composite leading and collecting plate for fuel cell and its manufacture |
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| Country | Link |
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| CN (1) | CN1469500A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359742C (en) * | 2004-04-15 | 2008-01-02 | 南亚电路板股份有限公司 | Flat-plate type direct methanol fuel cell and its producing method |
| CN100413128C (en) * | 2004-12-23 | 2008-08-20 | 南亚电路板股份有限公司 | Pole plates of tabulate type direct methanol fuel cells and manufacturing method |
| CN102689402A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Forming process for combining PA6 and metal insert |
| CN102689399A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Molding technology combining PA 610 with metal embedded pieces |
| CN102689400A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Forming process for combining PA6T and metal insert |
| CN104396069A (en) * | 2012-06-11 | 2015-03-04 | Ht切拉米克斯有限公司 | Solid oxide fuel cell |
| US9512525B2 (en) | 2012-06-11 | 2016-12-06 | Htceramix S.A. | Solid oxide fuel cell or solid oxide electrolyzing cell and method for operating such a cell |
| US9627698B2 (en) | 2012-06-11 | 2017-04-18 | Htceramix S.A. | Gas distribution element for a fuel cell |
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- 2002-07-17 CN CNA021360618A patent/CN1469500A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359742C (en) * | 2004-04-15 | 2008-01-02 | 南亚电路板股份有限公司 | Flat-plate type direct methanol fuel cell and its producing method |
| CN100413128C (en) * | 2004-12-23 | 2008-08-20 | 南亚电路板股份有限公司 | Pole plates of tabulate type direct methanol fuel cells and manufacturing method |
| US9512525B2 (en) | 2012-06-11 | 2016-12-06 | Htceramix S.A. | Solid oxide fuel cell or solid oxide electrolyzing cell and method for operating such a cell |
| US10468695B2 (en) | 2012-06-11 | 2019-11-05 | SOLIDpower SA | Gas distribution element for a fuel cell |
| US9991530B2 (en) | 2012-06-11 | 2018-06-05 | Htceramix S.A. | Solid oxide fuel cell |
| CN104396069A (en) * | 2012-06-11 | 2015-03-04 | Ht切拉米克斯有限公司 | Solid oxide fuel cell |
| CN104396069B (en) * | 2012-06-11 | 2018-06-05 | Ht切拉米克斯有限公司 | Solid-oxide fuel cell |
| US9831514B2 (en) | 2012-06-11 | 2017-11-28 | Htceramix S.A. | Solid oxide fuel cell or solid oxide electrolyzing cell and method for operating such a cell |
| US9627698B2 (en) | 2012-06-11 | 2017-04-18 | Htceramix S.A. | Gas distribution element for a fuel cell |
| CN102689399A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Molding technology combining PA 610 with metal embedded pieces |
| CN102689402B (en) * | 2012-06-28 | 2015-03-25 | 金发科技股份有限公司 | Forming process for combining PA6 and metal insert |
| CN102689399B (en) * | 2012-06-28 | 2015-03-25 | 金发科技股份有限公司 | Molding technology combining PA 610 with metal embedded pieces |
| CN102689400B (en) * | 2012-06-28 | 2015-03-25 | 金发科技股份有限公司 | Forming process for combining PA6T and metal insert |
| CN102689400A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Forming process for combining PA6T and metal insert |
| CN102689402A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Forming process for combining PA6 and metal insert |
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