CN1812171A - Metal bipolar plate used for proton exchange film fuel cell and preparative method - Google Patents
Metal bipolar plate used for proton exchange film fuel cell and preparative method Download PDFInfo
- Publication number
- CN1812171A CN1812171A CNA2005100457889A CN200510045788A CN1812171A CN 1812171 A CN1812171 A CN 1812171A CN A2005100457889 A CNA2005100457889 A CN A2005100457889A CN 200510045788 A CN200510045788 A CN 200510045788A CN 1812171 A CN1812171 A CN 1812171A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- proton exchange
- bipolar plates
- potted line
- exchange membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims description 19
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 32
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 239000007767 bonding agent Substances 0.000 claims description 9
- 229910020830 Sn-Bi Inorganic materials 0.000 claims description 5
- 229910018728 Sn—Bi Inorganic materials 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 18
- 238000005516 engineering process Methods 0.000 description 12
- 230000009977 dual effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000008393 encapsulating agent Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012536 packaging technology Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- TWDJIKFUVRYBJF-UHFFFAOYSA-N Cyanthoate Chemical compound CCOP(=O)(OCC)SCC(=O)NC(C)(C)C#N TWDJIKFUVRYBJF-UHFFFAOYSA-N 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920003031 santoprene Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
This invention relates to a kind of metal double-polar plate and its producing method used in proton exchanging membrane fuel cell under special situation. The said double-polar plate is arranged with gas and liquid chamber. A layer of potted line is evenly cemented at working area circumference of double-polar plate and circumference of gas, liquid chamber. The producing method of the said double-polar plate is: adhesive phosphoric acid, which weight percent is no less than 85%, is evenly smeared on working area circumference of double-polar plate and circumference of gas, liquid chamber. Conductive adhesive is evenly cemented around the double-polar plate as potted line. The pressure and temperature are produced on vulcanizing machine. The pressure is controlled below 0.1MPa. The temperature of vulcanizing machine is controlled between 150DEG C-240DEG C. This invention resolves question of sealing between gas chamber and gas chamber, gas chamber and environment in battery.
Description
Technical field
The present invention relates to a kind of used in proton exchange membrane fuel cell metal double polar plates and manufacturing technology of using under special occasions thereof, this technology is significant for the sealing of used in proton exchange membrane fuel cell bipolar plates and the industrialization process of propellant battery technology.
Background technology
The Proton Exchange Membrane Fuel Cells technology has obtained considerable progress since the nineties, eelctro-catalyst and electrode, and proton exchange membrane and three-in-one component thereof enter the stage of commercially producing.No matter be alkaline fuel cell or Proton Exchange Membrane Fuel Cells, all need take strict seal means, just can make steadily effectively operation of fuel cell.Fuel cell is the battery pack that is in series by a plurality of monocells, and its sealing comprises two contents: one is air chamber and extraneous sealing.Two is the sealing between fuel air chamber and the oxidant air chamber.In case seal failure, the lighter makes battery can't continue operation, and weight person can cause battery explosion, and consequence is very serious.Various countries all concentrate strength on developing the metal double polar plates that can supply large-scale commercial applications to produce at present, solution for sealing problem is urgent day by day, because the sealing of Proton Exchange Membrane Fuel Cells belongs to key technology, rarely have in the various patents and divulge, system's technical know-how separately, confidentiality is quite strong, all not mentioned concrete hermetically-sealed construction in relevant patent.
At document (1) US Patent 4,175, in 165, only in Fig. 1 of the document, demonstrate a rectangle frame sealing gasket 7, the size of expression sealing frame is greater than the profile of proton exchange membrane, and emphasize that in the 18th of its claim this rectangular seal frame only contacts with proton exchange membrane, points out that again sealing gasket does not hide electrode for the 25th.
At document (2) US Patent 5,300, in 370, only in the explanation of document Fig. 9, mention encapsulant (sealant) and gasket materials (gasket materia) 1324, and explanation sealing part insulate, around the service area in the middle of the pole plate, in addition, mention its dividing layer 76,86 and template layer 74 in the concrete device part of its patent, 84 adopt 0.8mm and the thick elastic graphite paper tinsel thin slice of 0.76mm, and this product is that the UCAR trade mark is the seal laminate of GH-A.
At document (3) US Patent 3,134, in 679, in Patent right requirement, do not mentioned sealing problem, only in embodiment 1, mention in passing and adopt silicone rubber packing ring (silicone rubber gaskets), and it is in Fig. 1 of the document, represent that with 11 its seal is a rectangle frame, but three-in-one littler than it.
At document (4) US Patent 5, in 382,478, do not mention sealing problem in the claims yet, only in the explanation of Fig. 9 B, represent its encapsulant around air inlet/outlet and service area, and mention that in the explanation of document Fig. 5 its three-in-one profile with pole plate is consistent.
Document (1), (2), (3), (4) all not mentioned concrete hermetically-sealed construction.
At document (5) US Patent 5,284, in 718, represent that clearly this patent adopts the tartan of the SANTOPRENE trade mark to do seal, with the metal stamping cutter sheet rubber is struck out required shape, the overall dimension of the profile plates of similar polarity of its proton exchange membrane is identical, stamp out interrupted open-work formula groove at the sheeting edge that constitutes with carbon paper, this groove is around the air inlet/outlet on four limits and the edge, service area of pole plate, during the battery assembling, the junction of the interrupted groove on the above-mentioned carbon paper is wiped out, stamping forming seal is embedded in the groove continuously, to form sealing battery.
In document (6) US Patent 5,464,700, at large analyzed and adopted proton exchange membrane to make all shortcoming of encapsulant, propose to adopt non-hydrophilic thermoplastic elastomer to laminate and made the method for Proton Exchange Membrane Fuel Cells encapsulant.The method that document (6) proposes operates more loaded down with trivial details.
At document (7) Chinese patent, in the application number 99112701.3, proposed three-in-one component is embedded in method in the seal, seal is rectangular box-like elastic gel pad, overall dimension is identical with pole plate, has air inlet/outlet and refrigerant outlet on the seal.Document (7) is rather detailed provides a kind of Sealing Technology that is used for the normal temperature fuel cell, but the rubber sheet frame pad encapsulating method that it adopts makes the packaging technology of Proton Exchange Membrane Fuel Cells become very complicated, thereby makes the assembling of Proton Exchange Membrane Fuel Cells be difficult to realize the large-scale commercial production of mechanization.
At document (8) Chinese patent, in the application number 99113180.0, a kind of dual polar plates of proton exchange membrane fuel cell with hermetically-sealed construction is provided, the method that it adopts is the periphery at double pole plate base board, it is the gentle fluid through-hole periphery of work area periphery bag Ao one deck rubber gasket, thickness is 0.1～2.0mm, and the shore hardness of elastomeric material is between 25～75.The method manufacture craft more complicated that document (8) proposes, and processing charges is higher.
Summary of the invention
The object of the present invention is to provide a kind of dual polar plates of proton exchange membrane fuel cell and preparation method thereof, it can make the preparation technology of dual polar plates of proton exchange membrane fuel cell more easy, and solved the sealing problem between fuel air chamber and the oxidant air chamber well, hermetically-sealed construction is reasonable, effect is solid reliable, cost is also low, does not wear out through long-time the use also, is suitable for the large-scale commercial production of mechanization.
Technical scheme of the present invention is:
The invention provides a kind of Sealing Technology of the dual polar plates of proton exchange membrane fuel cell that under special occasions, uses, bipolar plates is provided with gas, liquid chamber, around original bipolar plates, be that the work area periphery is gentle, the peripheral even bonding one deck potted line of liquid chamber, and on its potted line very thin wire of spot welding, allow it be close on the potted line, under high temperature action on the vulcanizer, and under certain pressure, be made.
1, the invention provides a kind of Sealing Technology of the dual polar plates of proton exchange membrane fuel cell that under special occasions, uses.
2, be no less than 85% phosphoric acid (analyzing pure) with weight percentage and make bonding agent, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, a kind of conducting resinl of special substance evenly is bonded in around the bipolar plates as potted line.Wherein, conducting resinl adopt have the synthetic bar of making of materials such as Xi-Yin, tin-copper, Sn-Bi, silk can, two kinds of material at high temperature are melted in pull into bar together or silk gets final product.
3, a thinner wire point of smooth diameter is welded on the potted line.
4, the pressure of preparation bipolar plates is controlled between 0.05MPa～0.1MPa, and the vulcanizer temperature is controlled between 150 ℃～240 ℃.
5, the pressure and temperature of preparation bipolar plates carries out on vulcanizer, and two end faces are smooth, smooth up and down for vulcanizer.
Beneficial effect of the present invention:
1, adopted phosphoric acid to do bonding agent among the present invention, a kind of conducting resinl of special substance is made potted line, and its adhesive effect is obvious, seal degree is solid reliable, has solved the sealing problem between the air chamber and air chamber, air chamber and the external world in the battery pack well.
2, the encapsulant of the present invention's employing is more general, used encapsulant (conducting resinl) is selected from the more intense wire of a kind of electric conductivity, have the synthetic bar of making of materials such as Xi-Yin, tin-copper, Sn-Bi as employing, silk can, with two kinds of material at high temperature be melted in pull into together bar or the silk get final product, also do not need special processing, so selected materials simplification, practicality are more intense.
3, to adopt the method for HTHP to make between pole plate and pole plate bonding more firm in the present invention, and smooth, reliable.
4, after the thin metal dual-pole board that adopts the present invention to prepare was assembled into battery pack, the contact resistance between two bipolar plates was much smaller than former old plate, and concrete data see Table 1.
5, cost is lower in the preparation process of the present invention, and does not wear out through long-time the use also, has than the highland practical value, is suitable for carrying out the large-scale commercial production of mechanization.
Description of drawings
Fig. 1 has been coated with schematic diagram behind the potted line for individual machine work plate of the present invention.
Fig. 2 is the bonding thin metal dual-pole board shape schematic diagram that forms afterwards of the present invention.
Fig. 3 is the E-I characteristic of embodiment 1 battery pack.
Fig. 4 is the E-I characteristic of embodiment 2 battery pack.
Fig. 5 is the E-I characteristic of embodiment 3 battery pack.
Embodiment
Individual machine work plate has been coated with schematic diagram behind the potted line as shown in Figure 1, and number in the figure 1 is the fuel air chamber, and label 2 is the cooling liquid chamber, and label 3 is the oxidant air chamber, and label 4 is a potted line.The thin metal dual-pole board 5 shape schematic diagrames that form after bonding as shown in Figure 2.
The present invention is a kind of Sealing Technology of a kind of dual polar plates of proton exchange membrane fuel cell that uses under special occasions.
1. to prepare fuel cell as follows with the step of thin metal dual-pole board in the present invention:
A, be no less than 85% phosphoric acid (analyzing pure) with weight percentage and make bonding agent, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, a kind of conducting resinl of special substance evenly is bonded in around the bipolar plates as potted line.
B, a smooth platinum silk point is welded on the potted line.
C, stack up successively in order after five machine work plates are located, be placed on and prepare to carry out high temperature high pressure process on the vulcanizer.
The pressure of d, preparation bipolar plates is controlled between 0.05MPa～0.1MPa, and temperature is controlled between 150 ℃～240 ℃.Two end faces are smooth, smooth up and down for vulcanizer.
E, after temperature reaches requirement, start vulcanizer, when pressure reaches set point, keep the vulcanizer operating state, temperature is set and is closed, and keeps the vulcanizer working power, allow vulcanizer temperature natural cooling, after temperature is lower than 100 ℃, close the vulcanizer power supply again.
2, the used bonding agent of the present invention is selected from weight percentage and is no less than 85% phosphoric acid (analyzing pure), does not also need special processes, so selected materials simplification, versatility are more intense.
3, sealing linear system of the present invention adopts a kind of electric conductivity preferred metal silk, and preferably diameter is just right, and its diameter range be good between 0.2mm～0.4mm, too slightly or the too thin sealing effectiveness that all will influence bipolar plates.
4, conductive adhesive therewith of the present invention is that employing has the synthetic bar of making of materials such as Xi-Yin, tin-copper, Sn-Bi, silk can, with two kinds of material at high temperature be melted in pull into together bar or the silk get final product, used herein is the synthetic material of Xi-Yin, and its diameter range is good between 2mm～3mm.
5, the vulcanizer heating and temperature control is between 150 ℃～240 ℃, and operating pressure is controlled between 0.05MPa～0.1MPa, and both ends of the surface must be smooth, smooth about the vulcanizer.
6, after temperature raises, must natural cooling, after temperature reaches below 100 ℃, just can take out the bipolar plates for preparing.
Embodiment 1
The thin metal dual-pole board with the wire sealing does not prepare:
Choosing work area is 130cm
2Five of stainless steel fuel cell machine work plates, thickness 0.4mm, gentle at the work area periphery, liquid chamber is peripheral, anyway bonding agent is made with the phosphoric acid (analyzing pure) of weight percentage 85% in the two sides, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, conducting resinl evenly is bonded in bipolar plates on every side as potted line, after being coated with potted line, individual machine work plate sees Fig. 1, after then five plates being located, stack up successively, take and carry out high temperature, HIGH PRESSURE TREATMENT (temperature is 180 ℃, and pressure is 0.08MPa) on the vulcanizer.Before the preparation vulcanizer up and down end plate must process smoothly, smooth, guarantee that end plate is firm with machine work plate contact area up and down, the potted line of smearing between pole plate and the pole plate is evenly melted under high temperature action, and bond area contact firm.The thin metal dual-pole board shape that forms after bonding is seen Fig. 2.Prepared go out do not detect sealing property, good seal with the nitrogen of 1MPa with the thin metal dual-pole board of wire sealing.With conventional platinum carbon eelctro-catalyst and electrode, platinum load amount 0.4mg/cm
2, 1135 films of du pont company are assembled into the Proton Exchange Membrane Fuel Cells that monocell constitutes, operating pressure O
2=0.22MPa, H
2=0.2MPa, 70 ℃ of temperature, the volt-ampere characteristic of battery pack is seen Fig. 3.
Embodiment 2
The thin metal dual-pole board preparation of band platinum silk sealing:
Choosing work area is 120cm
2Five of stainless steel fuel cell machine work plates, thickness 0.4mm, gentle at the work area periphery, liquid chamber is peripheral, anyway bonding agent is made with the phosphoric acid (analyzing pure) of weight percentage 90% in the two sides, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, conducting resinl evenly is bonded in bipolar plates on every side as potted line, a smooth platinum silk point is welded on the potted line, after then five plates being located, stack up successively, take and carry out high temperature, HIGH PRESSURE TREATMENT (temperature is 190 ℃, and pressure is 0.06MPa) on the vulcanizer.Before the preparation vulcanizer up and down end plate must process smoothly, smooth, guarantee that end plate is firm with machine work plate contact area up and down, the potted line of smearing between pole plate and the pole plate is evenly melted under high temperature action, and bond area contact firm.The thin metal dual-pole board of the prepared band platinum silk sealing that goes out detects sealing property with the nitrogen of 1MPa, and sealing is good especially.Be assembled into the Proton Exchange Membrane Fuel Cells that single-unit constitutes monocell, the battery operation operating condition is with embodiment 1.The volt-ampere characteristic of battery pack is seen Fig. 4.
Embodiment 3
The thin metal dual-pole board preparation of band platinum silk sealing:
Choosing work area is 130cm
2Five of stainless steel fuel cell machine work plates, thickness 0.3mm, gentle at the work area periphery, liquid chamber is peripheral, anyway bonding agent is made with the phosphoric acid (analyzing pure) of weight percentage 95% in the two sides, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, conducting resinl evenly is bonded in bipolar plates on every side as potted line, a smooth platinum silk point is welded on the potted line, after then five plates being located, stack up successively, take and carry out high temperature, HIGH PRESSURE TREATMENT (temperature is 210 ℃, and pressure is 0.09MPa) on the vulcanizer.Before the preparation vulcanizer up and down end plate must process smoothly, smooth, guarantee that end plate is firm with machine work plate contact area up and down, the potted line of smearing between pole plate and the pole plate is evenly melted under high temperature action, and bond area contact firm.The platinum bipolar plates of the prepared band platinum silk sealing that goes out detects sealing property with the nitrogen of 1MPa, and sealing is good especially.Be assembled into the Proton Exchange Membrane Fuel Cells that three pairs of monocells constitute, the battery operation operating condition is with embodiment 1.The volt-ampere characteristic of battery pack is seen Fig. 5.
Invention novelty and creativeness are illustrated:
1, the present invention does bonding agent with phosphoric acid, adopts a kind of special substance ground conducting resinl to do potted line, make it can be bonded in equably bipolar plates around, avoided former bipolar plates bonding not firm, and the easily aging problem of adhesives.
2, the present invention is bonded in the platinum silk on the potted line, can solve the sealing problem between the fuel air chamber and oxidant air chamber in the Proton Exchange Membrane Fuel Cells well, and bonding firm, is difficult for aging.
3, the present invention contacts the slit between certain pressure and the control of preferable temperature can reduce pole plate and pole plate, make the electric conductivity between pole plate and the pole plate evenly reliable, and the bond area contact is firm.
4, the present invention's pressure and temperature of preparing bipolar plates carries out on vulcanizer, can control the pressure and temperature that the bipolar plates preparation needs well.
The comparative example that invention is relevant:
The invention provides the Sealing Technology of a kind of dual polar plates of proton exchange membrane fuel cell that under special occasions, uses.
1, with document (1), (2), (3), (4) are compared, and the present invention mentions concrete hermetically-sealed construction, and a kind of feasible encapsulating method is provided;
2, compare with document (5) US Patent 5,284,478 and document (6) US Patent 5,464,700, manufacture craft of the present invention is fairly simple, and sealing effectiveness is more reliable.Compare with document (5), encapsulating method provided by the present invention has the difference of essence with it, and document (5) is the encapsulating method that adopts similar zero shape circle, zero shape circle is placed the groove that stamps out on the carbon paper, and the present invention does not use zero shape circle; Compare with document (6), the present invention's operation is easier to be reliable.
3, with document (7) Chinese patent, application number 99112701.3 is compared, and the present invention makes proton exchange membrane more simple with the packaging technology of fuel battery, and also aging through long-time use, is suitable for the large-scale commercial production of fuel cell mechanization from now on.
4, with document (8) Chinese patent, application number 99113180.0 is compared, and the present invention is reducing aspect the expense of pole plate preparation greatly.
5, after the thin metal dual-pole board that adopts the present invention to prepare was assembled into battery pack, when by big electric current, pole plate got an electric shock indirectly to press and is better than former bipolar plates, and concrete test data sees Table 1.
Table 1
| Electric current | New plate (mv) | Old plate (mv) |
| 1A | 0.18 | 4.72 |
| 2A | 0.37 | 8.27 |
| 3A | 0.56 | 12.6 |
| 4A | 0.75 | 16.84 |
| 5A | 0.95 | 20.95 |
| 6A | 1.11 | 24.84 |
| 7A | 1.31 | 29.19 |
| 8A | 1.49 | 33.14 |
| 9A | 1.69 | 37.33 |
| 10A | 1.88 | 41.81 |
| 11A | 2.06 | 45.89 |
| 12A | 2.25 | 49.85 |
| 13A | 2.44 | 54.02 |
| 14A | 2.63 | 58.34 |
| 15A | 2.81 | 62.35 |
| 16A | 3.00 | 66.2 |
| 17A | 3.2 | 70.82 |
| 18A | 3.39 | 75.05 |
| 19A | 3.57 | 78.86 |
| 20A | 3.75 | 82.78 |
Claims (5)
1, a kind of used in proton exchange membrane fuel cell metal double polar plates, it is characterized in that: bipolar plates is provided with gas, liquid chamber, work area periphery in bipolar plates is gentle, the peripheral even bonding one deck potted line of liquid chamber, described sealing linear system adopts conductive adhesive to form, and its diameter range is between 2mm～3mm.
2, according to the described used in proton exchange membrane fuel cell metal double polar plates of claim 1, it is characterized in that: described conducting resinl adopts has synthetic bar of making of Xi-Yin, tin-copper or Sn-Bi material or silk.
3, according to claim 1 or 2 described used in proton exchange membrane fuel cell metal double polar plates, it is characterized in that: bipolar plates is provided with gas, liquid chamber, work area periphery in bipolar plates is gentle, the peripheral even bonding one deck potted line of liquid chamber, spot welding one one metal wire on the described potted line, wire is close on the potted line, and its diameter range is between 0.2mm～0.4mm.
4,, it is characterized in that concrete steps are as follows according to the preparation method of the described used in proton exchange membrane fuel cell metal double polar plates of claim 1:
(1) is no less than 85% phosphoric acid with weight percentage and makes bonding agent, spread upon evenly that bipolar plates work area periphery is gentle, liquid chamber is peripheral, conducting resinl evenly is bonded in around the bipolar plates as potted line; Wherein, conducting resinl adopts has synthetic bar of making of Xi-Yin, tin-copper or Sn-Bi material or silk, two kinds of material at high temperature is melted in pulls into bar together or silk gets final product;
(2) pressure and temperature of preparation bipolar plates carries out on vulcanizer, and the pressure of preparation bipolar plates is controlled between 0.05MPa～0.1MPa, and the vulcanizer temperature is controlled between 150 ℃～240 ℃.
5, according to the preparation method of the described used in proton exchange membrane fuel cell metal double polar plates of claim 4, it is characterized in that: described step (2) is that platinum silk point between 0.2mm～0.4mm is welded on the potted line with a smooth diameter range afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457889A CN100340020C (en) | 2005-01-28 | 2005-01-28 | Metal bipolar plate used for proton exchange film fuel cell and preparative method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457889A CN100340020C (en) | 2005-01-28 | 2005-01-28 | Metal bipolar plate used for proton exchange film fuel cell and preparative method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1812171A true CN1812171A (en) | 2006-08-02 |
| CN100340020C CN100340020C (en) | 2007-09-26 |
Family
ID=36844923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100457889A Expired - Fee Related CN100340020C (en) | 2005-01-28 | 2005-01-28 | Metal bipolar plate used for proton exchange film fuel cell and preparative method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100340020C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461775A (en) * | 2016-12-10 | 2018-08-28 | 中国科学院大连化学物理研究所 | A kind of high temperature proton exchange film fuel cell metal composite gasket and application |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976727A (en) * | 1997-09-19 | 1999-11-02 | Ucar Carbon Technology Corporation | Electrically conductive seal for fuel cell elements |
| CN2552171Y (en) * | 2002-06-07 | 2003-05-21 | 中国科学院上海微系统与信息技术研究所 | Double polar plate structure for proton exchange membrane fuel cell |
| CN1180493C (en) * | 2002-09-25 | 2004-12-15 | 吉林大学 | Method of using metallic conductive glue to proceed solid oxide fuel cell fast sealing |
| WO2004086552A2 (en) * | 2003-03-25 | 2004-10-07 | E.I. Du Pont Canada Company | Process for sealing plates in an electrochemical cell |
| CN2632870Y (en) * | 2003-07-25 | 2004-08-11 | 上海神力科技有限公司 | Improved fuel battery stack assembly |
-
2005
- 2005-01-28 CN CNB2005100457889A patent/CN100340020C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461775A (en) * | 2016-12-10 | 2018-08-28 | 中国科学院大连化学物理研究所 | A kind of high temperature proton exchange film fuel cell metal composite gasket and application |
| CN108461775B (en) * | 2016-12-10 | 2020-12-04 | 中国科学院大连化学物理研究所 | Metal composite sealing gasket for high-temperature proton exchange membrane fuel cell and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100340020C (en) | 2007-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1186842C (en) | Solid macromolecular electrolyte type fuel cell | |
| CN1147016C (en) | Gas-proof assembly composed of bipolar plate and membrane-electrode unit of polymer electrolyte membrane fuel cells | |
| CN1839502A (en) | Sealing of a membrane electrode assembly | |
| CN101048901B (en) | Edge stress relief in diffusion media | |
| US8067128B2 (en) | Sealing structure of fuel cell and method for manufacturing the same | |
| CN1285959A (en) | Electrode and battery | |
| CA2473870A1 (en) | Sealing structure for sealing separator plates of fuel cell modules | |
| RU2011108944A (en) | METHODS AND DEVICES FOR LEAD ACID BATTERIES | |
| CN102468501B (en) | Method for protecting catalytic membrane in preparation of one-piece renewable fuel cell membrane electrode assembly (MEA) | |
| WO2005078839A3 (en) | Method of forming bipolar plate modules | |
| CN100340020C (en) | Metal bipolar plate used for proton exchange film fuel cell and preparative method | |
| CN102456905A (en) | Liquid flow battery unit, battery stack and manufacturing method thereof | |
| CN1815790A (en) | Sealing structure of flow-guide double-pole plate or membrane electrode for fuel cell | |
| CN111041510A (en) | Composite polar plate of PEM (proton exchange membrane) electrolytic cell | |
| CN206834255U (en) | A kind of pem fuel cell stack | |
| CN215473351U (en) | Vacuum hot-pressing jig for bipolar plate of fuel cell and vacuum hot press | |
| CN1178321C (en) | Guide plate structure of miniature fuel battery | |
| WO2018105898A1 (en) | Bipolar plate-electrode assembly using thermoplastic resin and manufacturing method thereof | |
| CN214358923U (en) | Suction plate | |
| CN1761094A (en) | Improved version of hold-down gear for fuel cell pile | |
| CN100452481C (en) | A sealing device for fuel cell | |
| EP1846975A1 (en) | Method and device for permanently connecting a polymer electrolyte to at least one gas diffusion electrode | |
| EP1691435A4 (en) | Fuel cell | |
| CN110311152B (en) | Sealing method | |
| CN1808748A (en) | Preparation method of dual electrode plates of fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINYUAN POWER CO., LTD. Free format text: FORMER OWNER: DALIAN INST OF CHEMICOPHYSICS, CHINESE ACADEMY OF SCIENCES Effective date: 20071116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071116 Address after: 116025 Dalian high tech park Qixianling Torch Road No. 1 block A No. 401 Patentee after: Sunrise Power Co.,Ltd. Address before: 116023 No. 457, Zhongshan Road, Liaoning, Dalian Patentee before: Dalian Institute of Chemical Physics, Chinese Academy of Sciences |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230320 Address after: 266000 Room 235, Science and Technology Museum, EMU Town, Qingdao Rail Industry Demonstration Zone, west end of Chunyang Road, Jihongtan Sub district Office, Chengyang District, Qingdao, Shandong Patentee after: China titanium guochuang (Qingdao) Technology Co.,Ltd. Address before: 401 #, Block A, No. 1, Torch Road, Qixianling, High-tech Zone, Dalian Patentee before: Sunrise Power Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |