CN102969513A - Large-area metal bipolar plate for automobile fuel cell - Google Patents
Large-area metal bipolar plate for automobile fuel cell Download PDFInfo
- Publication number
- CN102969513A CN102969513A CN2012105099071A CN201210509907A CN102969513A CN 102969513 A CN102969513 A CN 102969513A CN 2012105099071 A CN2012105099071 A CN 2012105099071A CN 201210509907 A CN201210509907 A CN 201210509907A CN 102969513 A CN102969513 A CN 102969513A
- Authority
- CN
- China
- Prior art keywords
- flow field
- bipolar plates
- cooling fluid
- unipolar plate
- oxidant
- 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 78
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 239000007800 oxidant agent Substances 0.000 claims abstract description 30
- 230000001590 oxidative effect Effects 0.000 claims abstract description 30
- 239000011229 interlayer Substances 0.000 claims abstract description 4
- 239000012809 cooling fluid Substances 0.000 claims description 52
- 239000007789 gas Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 239000002737 fuel gas Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
The invention relates to a large-area metal bipolar plate for an automobile fuel cell. The bipolar plate is formed by connecting two pieces of single-pole plates which are completely the same as each other; the two single-pole plates are respectively provided with a fuel inlet/outlet, an oxidant inlet/outlet, a cooling liquid inlet/outlet and a flow field; the flow field arranged on the single-pole plate on one side is connected with the fuel inlet/outlet so as to be taken as a fuel flow field, and the flow field arranged on the single-pole plate on the other side is connected with the oxidant inlet/outlet so as to be taken as an oxidant flow field; a cooling liquid flow field connected with the cooling liquid inlet/outlet is formed by an interlayer between the two single-pole plates which are clamped together; and therefore, a three-inlet and three-outlet structure can be formed, and the function of two plates with three fields can be realized. Compared with the prior art, the large-area metal bipolar plate can be prepared only by a mould, so that the mould development expenses and the forming technology complexity are reduced; due to the structure of the two single-pole plates, the area of flow field region is large, reaction efficiency is high and the demands of high power and high energy rate density of the automobile fuel cell are met; and the large-area metal bipolar plate is suitable for large-scale manufacturing methods such as stamping forming, soft film forming and hydro-bulging, thus being low in manufacturing cost.
Description
Technical field
The present invention relates to the manufacture method in a kind of fuel cell technology field, specifically a kind of large-area metal bipolar plates configurations and manufacture method thereof of Experimental research on proton exchange membrane fuel cells for vehicles.
Background technology
Proton Exchange Membrane Fuel Cells (PEMFC) be a kind of with the chemical energy in the raw material directly be transformed into electric energy " chemical energy generating " device, its energy conversion efficiency is not limited by Carnot cycle, the generating efficiency of battery pack can reach more than 50%.Simultaneously, PEMFC has environmental friendliness, and starting characteristic is good, and energy conversion efficiency is high, operates steadily, the feature such as noiseless, is expected to be applied at numerous areas, especially uses richly endowed by nature especially in automobile dynamic system.The practical automobile that can solve of PEMFC electric automobile increases considerably environmental pollution and the energy shortage problem of bringing, for cleaning vehicle industry will provide new opportunity future.Therefore since last century the nineties just started the research boom of a fuel cell car.As far back as 1992, Canadian Ba Lade company developed the pemfc stack of 88KW and has assembled the first in the world Fuel Cell Bus under the subsidy of government.2009, the main automobile of Germany and energy company and government's combined launch " H
2Mobility Initiative " plan, will build up in 2015 1000 hydrogenation stations, and at the year two thousand twenty 500000 fuel cell cars that come into operation.Just there have been 23 fuel cell car demonstrating runnings in China 7.6 ten thousand kilometers in 2008 Olympic Games, this numeral rises to 196 and 910,000 kilometers in the 2010 World Fair.According to the planning of upper vapour group, by 2015, fuel cell car will reach the production scale of thousand levels.The large-scale promotion application of fuel cell car proposes unprecedented challenge to the low cost fabrication of PEMFC.
Bipolar plates is one of critical component of PEMFC.According to Direct Technologies company investigation statistics, bipolar plates account for the pile volume 80%, 70% and cost of quality 29%.Its major function is the support membrane electrode assemblie, distributes reacting gas, collected current, conduction heat and discharge product water etc.At present, the PEMFC bipolar plate material mainly contains three classes: graphite material, composite material and metal material.The graphite bi-polar plate conduction is good, decay resistance is strong, and the fuel cell car of Demonstration Application mostly adopts this kind bipolar plates at present; But material fragility is very big, bad mechanical property, and working (machining) efficiency is low simultaneously, is difficult to realize the commercialization production in enormous quantities.Composite material double pole plate is take carbon dust and resin as primary raw material, be prepared from through modes such as mold pressings, and it is with low cost, but also there is the problem of conductivity and gas permeation in composite dual-electrode plates.Sheet metal has high intensity and conduction, heat conductivility, and the cheap and suitable mass production method of raw material is the first-selection of the fuel cell industrialization of generally acknowledging.
Find that through the retrieval to the prior art document more current research institutions have proposed different technical schemes with company for metal double polar plates.Invented a kind of neutral network fractal runner double-pole plate such as China Patent Publication No. CN 1933222A, its flow field transition region runner adopts multi-channel nerve Network Fractal structure, makes each flow channel length and the gas flow resistance in each runner substantially equal.Yet this structure can only satisfy a kind of flow field demand, is difficult to take into account simultaneously fuel, oxidant and cooling fluid flow field.A kind of stamping forming metal double polar plates of China Patent Publication No. CN 101937998A design comprises the first metallic plate and the second metallic plate for another example.The first metallic plate front arranges the sealing platform area, and two plates arrange interrupted corner guiding gutter between flow field runner and each gas inlet and outlet, and the strip groove is established in two plate cooling liquid outlet neighboring areas.This structure needs the not unipolar plate of isomorphism type of two kinds of punching presses, has increased die sinking cost and process complexity.And for example China Patent Publication No. CN 101937997A proposes a kind of on-plane surface curved metal bipolar plates with certain curvature, and is relative to the anode unipolar plate consisting of by the negative electrode unipolar plate that sheet metal is made; The cathode and anode chamber of two plates, coolant chamber and flow field area groove and boss convex-concave shape are mutually corresponding, consist of respectively fuel gas channel, oxidant channel and coolant guiding channel.This structure need to be processed how secondary mould equally, and the on-plane surface Mould Machining cost with curvature is high simultaneously, and machining accuracy is difficult to guarantee; Simultaneously curved metal pole plate assembling difficulty, the gas diffusion layer materials such as carbon paper with curved metal pole plate assembling process in easily fracture lost efficacy.The bipolar plates based on thin plate punching that proposes such as China Patent Publication No. CN 101101993A at last, comprise that two flow field veneers are respectively as anode and negative electrode, an intermediate supports thin plate places the flow field veneer direct, forms fuel, oxidant and cooling fluid and imports and exports.This structure need three not the sheet metal of isomorphism type could satisfy functional requirement, simultaneously, this bipolar plates flow resistance is larger, is difficult to use at the large-area metal pole plate of vehicle fuel battery.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of cost is low, the large-area metal bipolar plates of compact conformation, the flow field regions area is large, reaction efficiency is high vehicle fuel battery.
Purpose of the present invention can be achieved through the following technical solutions: a kind of large-area metal bipolar plates of vehicle fuel battery, it is characterized in that, this bipolar plates is formed by connecting by two identical unipolar plate, being equipped with fuel on two unipolar plate imports and exports, oxidant is imported and exported, cooling fluid is imported and exported and the flow field, wherein the connection of the flow field on side unipolar plate fuel is imported and exported the flow field that acts as a fuel, flow field on the opposite side unipolar plate connects oxidant and imports and exports as oxidant flow field, interlayer forms and connects the cooling fluid flow field that cooling fluid is imported and exported after two unipolar plate clampings, be three and advance three and go out structure, realize three functions of two plates.
Fuel inlet on the described unipolar plate and oxidant inlet lay respectively at the unipolar plate two ends, and Rotational Symmetry, flow field on the unipolar plate is comprised of drainage trough and the middle direct current groove at two ends, described drainage trough one end connects the fuel import and export or oxidant is imported and exported, the other end connects direct current groove, corresponding three direct current grooves of each drainage trough, fuel gas or oxidant gas that drainage trough is introduced are divided into three strands of gases.
The number of described drainage trough is 9～25.
Described cooling fluid is imported and exported and is divided into large mouthful and osculum, and large mouthful of bipolar plates the same side is connected with osculum; 8～12 cooling fluid distributing troughs of large mouthful of connection, osculum connects 6～10 cooling fluid distributing troughs, and large mouthful of cooling fluid distributing trough dislocation layout that is connected separately with osculum forms the cooling fluid flow field.
Described bipolar plates overall dimensions is 100 * 400mm, and the flow field effective area is greater than 90%; The bipolar plates main body is the straight parallel flow field, and the runner number is 27～75; Its cross section of fluid channel is rectangle, and groove depth is 0.4～0.6mm, and groove width is 0.8～1.5mm, and ridge is wide to be 0.5～1.2mm, and radius of corner is 0.05～0.2mm; The seal groove cross section is rectangle, and the sealing groove width is 1.5～3.0mm, and depth of sealing groove is 0.4～0.6mm.
Described unipolar plate adopts drawing, mantle to be shaped or the hydraulic expanding-forming moulding by the thick metallic sheet stock of 0.1～0.2mm; Two unipolar plate connect by gluing, resistance spot welding or laser welding.
Described bipolar plates periphery is provided with dowel hole, location half pin-and-hole or location end face.
Described bipolar plates side also is provided with patrols and examines mouth, and the described mouth of patrolling and examining is rectangle or semicircle.
Bipolar plates of the present invention is made of two identical unipolar plate, only needs a secondary mould to get final product, and has reduced mould development expense and forming technology complexity; Bipolar plate structure is compact, and the flow field regions area is large, and reaction efficiency is high, is fit to high-power, the high-duty density requirement of vehicle fuel battery; This pole plate is suitable for the manufacture method in enormous quantities such as drawing, mantle shaping, hydraulic expanding-forming, and is cheap for manufacturing cost.
Compared with prior art, vehicle fuel battery large-area metal bipolar plates ingehious design " three advance three goes out " and " one minute three " structure that the present invention proposes, adopt two identical unipolar plate to realize fuel, oxidant and cooling fluid distribution requirements, adopt a mould to prepare, significantly shorten the process exploitation time, reduce Design of Dies and processing charges, reduced the manufacturing process complexity; The main flow field regions of bipolar plates adopts the straight channel design, is fit to the large tracts of land requirement of vehicle fuel battery, and the flow field effective area is large simultaneously, has improved the PEMFC reaction efficiency, has promoted the energy rate density of PEMFC system; Metal bipolar panel configuration of the present invention is fit to the production in enormous quantities pattern, is shaped and hydraulic expanding-forming etc. such as drawing, mantle, can realize fuel cell high efficiency, low cost fabrication, for the Industrialization of fuel cell car provides technical support.
Description of drawings
Fig. 1 is vehicle fuel battery metal double polar plates fuel of the present invention or oxidant gas flow field schematic diagram;
Fig. 2 is vehicle fuel battery metal double polar plates cooling fluid of the present invention flow field schematic diagram;
Fig. 3 is vehicle fuel battery metal double polar plates entrance details drawing of the present invention;
Fig. 4 is vehicle fuel battery metal bipolar plate exit details drawing of the present invention;
Fig. 5 is vehicle fuel battery metal double polar plates cross section of fluid channel schematic diagram of the present invention;
Fig. 6 is vehicle fuel battery metal double polar plates path of welding schematic diagram of the present invention;
Fig. 7 is vehicle fuel battery metal double polar plates locate mode schematic diagram of the present invention;
Fig. 8 is the monocell performance chart of vehicle fuel battery metal double polar plates assembling of the present invention.
Wherein: dowel hole-1, fuel inlet-2, flow field distribution district-3, patrol and examine mouth-4, seal groove-5, dc fields zone-6, oxidant outlet-7, cooling liquid outlet-8, fuel outlet-9, set district-10, flow field, oxidant inlet-11, cooling fluid entrance-12, cooling fluid flow field-13, runner ridge-14, flow path groove-15, cooling fluid auxiliary entrance-16, cooling fluid main-inlet-17, cooling fluid entrance distributing trough-18, " dividing three " structure-19 is distributed in the flow field, cooling fluid pilot outlet-20, cooling fluid primary outlet-21, cooling liquid outlet distributing trough-22, flow field set " three-in-one " structure-23, path of welding-24, bipolar plates-25, alignment pin-26, positioning fixture-27, locate half pin-and-hole-28, location end face-29.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
Present embodiment is implemented under following implementation condition and specification requirement condition:
According to the design of the vehicle fuel battery large-area metal bipolar plate structure schematic diagram shown in Fig. 1～4 and processing press forming die, comprise upper die and lower die.Adopt the preparation of precision stamping forming technology to have the unipolar plate of flow field configuration as shown in Figure 1, stamping press is 200 tons, and drawing velocity is 30 seconds/sheet.Plate material is Stainless steel 316, and material thickness is 0.1mm, after the side cut the unipolar plate overall dimensions be 100 * 400mm.As shown in Figure 5, flow path groove 15 dark h are 0.5mm, and flow path groove 15 wide w are 1.2mm, ridge 14 wide n1.0mm, and a side forms fuel flow channel a after two identical unipolar plate combinations, and opposite side forms oxidant flow channel b, and intermediate course forms coolant flow channel c.
Bipolar plates is formed by connecting by two identical unipolar plate, be equipped with fuel import and export, oxidant import and export on two unipolar plate, cooling fluid is imported and exported and the flow field, wherein the connection of the flow field on side unipolar plate fuel is imported and exported the flow field that acts as a fuel, flow field on the opposite side unipolar plate connects oxidant and imports and exports as oxidant flow field, interlayer forms and connects the cooling fluid flow field that cooling fluid is imported and exported after two unipolar plate clampings, is three and advances three and go out structure, realizes three functions of two plates.As described in Figure 1, be bipolar plates fuel gas flow field schematic diagram, this unipolar plate is provided with fuel inlet 2, fuel outlet 9, oxidant outlet 7, oxidant inlet 11, cooling liquid outlet 8, cooling fluid entrance 12, and 9 the flow field that connects fuel inlet 2 and fuel outlet, wherein fuel inlet is that fuel inlet 2 is that oxidant inlet 11 lays respectively at the unipolar plate two ends with oxidant inlet, and Rotational Symmetry, the distribution district, flow field 3 that the flow field is comprised of the drainage trough at fuel inlet 2 places, the set district, flow field 10 that the drainage trough at fuel outlet 9 places forms, and the direct current groove in connection distribution district, flow field 3 and 10 districts, set district, flow field is that dc fields zone 6 forms, corresponding three direct current grooves of each drainage trough, fuel gas to the dc fields zone 6 that the drainage trough in flow field distribution district 3 is introduced is divided into three strands of gases, and " one minute three " structure 19 is distributed in the flow field, as shown in Figure 3, then converge (flow field set " three-in-one " structure 23, as shown in Figure 4) the rear outflow in flow field set district 10.Be provided with seal groove 5 at each fluid inlet and outlet and flow field periphery.
Unipolar plate dc fields zone 6 runner numbers are 45, and flow field distribution district 3 and flow field set district 10 place's runner numbers are 15.Seal groove 5 wide 2.0mm, dark 0.5mm.Two identical unipolar plate adopt fiber lasers to be welded into large-area metal bipolar plates 25, path of welding 24 as shown in Figure 6, bonding power is 200W, speed of welding is 50mm/s.Metal double polar plates self-assembling formation after the welding " three advance three goes out " structure, there are 10 cooling fluid entrance distributing troughs 18 at cooling fluid entrance 12 places, and there are 8 cooling liquid outlet distributing troughs 22 at cooling liquid outlet 8 places.The length of cooling fluid entrance 12 and cooling liquid outlet 8 is 13mm, and width is 5.4mm, and cooling fluid main-inlet 17 and cooling fluid primary outlet 21 length are 5mm, and cooling fluid auxiliary entrance 16 and cooling fluid pilot outlet 20 length are 3mm, highly are 1.0mm.Shown in Fig. 7 (a), present embodiment adopts pin-hole locate mode, and alignment pin 26 and location hole 27 diameters are 4mm; Patrol and examine mouth 4 and be rectangular configuration, length and width are 5mm, and Circularhole diameter is 2mm.
Adopting the vehicle fuel battery large-area metal bipolar plates integral planar degree of implementing 1 preparation is 2.0mm (range method measurement); The runner height tolerance is ± 20 μ m.Adopt the bipolar plates assembling monocell of present embodiment preparation, the power density curve of acquisition embodiment 1 curve as shown in Figure 8, peak power density reaches 865mW/cm
2Test condition: anode and cathode catalysis agent content: 0.4mg.Pt/cm
-2, proton exchange membrane is Nafion212, and stack temperature is 80 ℃, and negative electrode, anode reaction temperature degree are 80 ℃, and humidity is 100%, pressure is 0.3MPa.
Present embodiment adopts the vehicle fuel battery large-area metal bipolar plates of mantle forming technology preparation shown in Fig. 1～4.According to flow field configuration processing patrix, adopt hardness be 55 ° polyurethane material as mantle, the thick stainless steel 304 light sheet material of 0.2mm places between patrix and the mantle.Plastic force is 300 tons, and forming speed is 60 seconds/sheet.Be shaped and cut edge after the unipolar plate overall dimensions be 100 * 400mm.As shown in Figure 5, flow path groove 15 is 0.4mm deeply, and flow path groove 15 is wide to be 1.5mm, ridge 14 wide 1.2mm.Unipolar plate dc fields zone 6 runner numbers are 27, and flow field distribution district 3 and flow field set district 10 place's runner numbers are 9.Seal groove 5 wide 3.0mm, dark 0.4mm.Two identical unipolar plate adopt resistance spot weldings to connect into the large-area metal bipolar plates, path of welding as shown in Figure 6, the adjacent welds spacing is 3mm.Metal double polar plates self-assembling formation after the welding " three advance three goes out " structure, there are 8 cooling fluid entrance distributing troughs 18 at cooling fluid entrance 12 places, and there are 6 cooling liquid outlet distributing troughs 22 at cooling liquid outlet 8 places.The length of cooling fluid entrance 12 and cooling liquid outlet 8 is 13mm, and width is 5.4mm, and cooling fluid main-inlet 17 and cooling fluid primary outlet 21 length are 5mm, and cooling fluid auxiliary entrance 16 and cooling fluid pilot outlet 20 length are 3mm, highly are 0.8mm.Shown in Fig. 7 (b), present embodiment adopts pin-semicircle orifice locate mode, and alignment pin 26 and half pin-and-hole hole, location, 28 diameters are 6mm; Patrol and examine mouth 4 and be semicircular structure, outside diameter is 5mm, and interior Circularhole diameter is 2mm.
Adopt and enforcement 1 identical method of measurement and measurement parameter, the vehicle fuel battery large-area metal bipolar plates integral planar degree of embodiment 2 preparations is 2.5mm; The runner height tolerance is ± 25 μ m.Adopt the bipolar plates assembling monocell of present embodiment preparation, the power density curve of acquisition embodiment 2 curves as shown in Figure 8, peak power density reaches 671mW/cm
2
Embodiment 3
Present embodiment adopts the vehicle fuel battery large-area metal bipolar plates of Hydroform process preparation shown in Fig. 1～4.Process monolateral mould according to the flow field configuration, adopt viscosity coefficient be 55 hydraulic oil as shaping medium, thick stainless steel 304 light sheet material one side of 0.1mm contacts and seals with monolateral mould, opposite side contacts with hydraulic oil, by hydraulic cylinder adjusting plastic force.Present embodiment forming liquid pressure is 350MPa, and forming speed is 120 seconds/sheet.Be shaped and cut edge after the unipolar plate overall dimensions be 100 * 400mm.As shown in Figure 5, flow path groove 15 is 0.6mm deeply, and flow path groove 15 is wide to be 0.8mm, ridge 14 wide 0.5mm.Unipolar plate dc fields zone 6 runner numbers are 75, and flow field distribution district 3 and flow field set district 10 place's runner numbers are 25.Seal groove 5 wide 1.5mm, dark 0.6mm.Two identical unipolar plate adopt gluing methods to connect into the large-area metal bipolar plates, bonding path as shown in Figure 6, adhesives is epoxy resin.Metal double polar plates self-assembling formation after bonding " three advance three goes out " structure, there are 12 cooling fluid entrance distributing troughs 18 at cooling fluid entrance 12 places, and there are 10 cooling liquid outlet distributing troughs 22 at cooling liquid outlet 8 places.The length of cooling fluid entrance 12 and cooling liquid outlet 8 is 13mm, and width is 5.4mm, and cooling fluid main-inlet 17 and cooling fluid primary outlet 21 length are 5mm, and cooling fluid auxiliary entrance 16 and cooling fluid pilot outlet 20 length are 3mm, highly are 1.2mm.Shown in Fig. 7 (c), present embodiment adopts the end face locate mode, and location section 29 length are 10mm, become miter angle with the pole plate edge; Patrol and examine mouth 4 and be rectangular configuration, length and width are 5mm, and Circularhole diameter is 2mm.
Adopt and enforcement 1 identical method of measurement and measurement parameter, the vehicle fuel battery large-area metal bipolar plates integral planar degree of embodiment 3 preparations is 1.5mm; The runner height tolerance is ± 15 μ m.Adopt the bipolar plates assembling monocell of present embodiment preparation, the power density curve of acquisition embodiment 2 curves as shown in Figure 7, peak power density reaches 793mW/cm
2
Embodiment 1 forming efficiency and joint efficiency are higher than embodiment 2 and 3 far away, are fit in enormous quantities, the low cost fabrication demand of vehicle fuel battery.Although the bipolar plates flatness of embodiment 1 preparation and runner height tolerance are greater than embodiment 3, its final battery performance is higher than embodiment 3, illustrates that its flow field configuration and runner parameter are for optimum.Therefore, embodiment 1 is vehicle fuel battery large-area metal bipolar plates configurations and the manufacture method of the present invention's recommendation.Above-mentioned example is case only, the invention is not restricted to this example.Other formal transformations that those skilled in the art's technical scheme according to the present invention is done; such as material category, material thickness, bipolar plates overall dimensions, runner parameter, seal groove parameter etc.; but only have the flow field configuration to adopt the structure similar to the present invention with gas/liquid distribution openings structure, still belong within the protection range of the present invention.
Claims (8)
1. the large-area metal bipolar plates of a vehicle fuel battery, it is characterized in that, this bipolar plates is formed by connecting by two identical unipolar plate, be equipped with fuel import and export, oxidant import and export on two unipolar plate, cooling fluid is imported and exported and the flow field, wherein the connection of the flow field on side unipolar plate fuel is imported and exported the flow field that acts as a fuel, flow field on the opposite side unipolar plate connects oxidant and imports and exports as oxidant flow field, interlayer forms and connects the cooling fluid flow field that cooling fluid is imported and exported after two unipolar plate clampings, be three and advance three and go out structure, realize three functions of two plates.
2. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1, it is characterized in that, fuel inlet on the described unipolar plate and oxidant inlet lay respectively at the unipolar plate two ends, and Rotational Symmetry, flow field on the unipolar plate is comprised of drainage trough and the middle direct current groove at two ends, described drainage trough one end connects the fuel import and export or oxidant is imported and exported, the other end connects direct current groove, corresponding three direct current grooves of each drainage trough, fuel gas or oxidant gas that drainage trough is introduced are divided into three strands of gases.
3. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 2 is characterized in that, the number of described drainage trough is 9～25.
4. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1 is characterized in that, described cooling fluid is imported and exported and is divided into large mouthful and osculum, and large mouthful of bipolar plates the same side is connected with osculum; 8～12 cooling fluid distributing troughs of large mouthful of connection, osculum connects 6～10 cooling fluid distributing troughs, and large mouthful of cooling fluid distributing trough dislocation layout that is connected separately with osculum forms the cooling fluid flow field.
5. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1 is characterized in that, described bipolar plates overall dimensions is 100 * 400mm, and the flow field effective area is greater than 90%; The bipolar plates main body is the straight parallel flow field, and the runner number is 27～75; Its cross section of fluid channel is rectangle, and groove depth is 0.4～0.6mm, and groove width is 0.8～1.5mm, and ridge is wide to be 0.5～1.2mm, and radius of corner is 0.05～0.2mm; The seal groove cross section is rectangle, and the sealing groove width is 1.5～3.0mm, and depth of sealing groove is 0.4～0.6mm.
6. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1 is characterized in that, described unipolar plate adopts drawing, mantle to be shaped or the hydraulic expanding-forming moulding by the thick metallic sheet stock of 0.1～0.2mm; Two unipolar plate connect by gluing, resistance spot welding or laser welding.
7. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1 is characterized in that, described bipolar plates periphery is provided with dowel hole, location half pin-and-hole or location end face.
8. the large-area metal bipolar plates of a kind of vehicle fuel battery according to claim 1 is characterized in that, described bipolar plates side also is provided with patrols and examines mouth, and the described mouth of patrolling and examining is rectangle or semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509907.1A CN102969513B (en) | 2012-12-03 | 2012-12-03 | Large-area metal bipolar plate for automobile fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509907.1A CN102969513B (en) | 2012-12-03 | 2012-12-03 | Large-area metal bipolar plate for automobile fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102969513A true CN102969513A (en) | 2013-03-13 |
| CN102969513B CN102969513B (en) | 2015-05-20 |
Family
ID=47799504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210509907.1A Active CN102969513B (en) | 2012-12-03 | 2012-12-03 | Large-area metal bipolar plate for automobile fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102969513B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746123A (en) * | 2014-02-18 | 2014-04-23 | 武汉理工大学 | Metal bipolar plate for proton exchange membrane fuel battery and electric pile formed by same |
| CN103894470A (en) * | 2014-03-27 | 2014-07-02 | 华南理工大学 | Method for manufacturing bipolar plate of fuel cell |
| CN104900886A (en) * | 2015-05-27 | 2015-09-09 | 江苏绿遥燃料电池系统制造有限公司 | Metal bipolar plate with convection type cooling liquid flow field |
| CN105702968A (en) * | 2014-11-28 | 2016-06-22 | 中国科学院大连化学物理研究所 | Metal stamping bipolar plate with simple structure |
| CN109728320A (en) * | 2018-11-27 | 2019-05-07 | 清华大学 | A kind of fuel cell efficient full frame flow field bipolar plates and its battery pile |
| CN109935842A (en) * | 2019-04-01 | 2019-06-25 | 中自环保科技股份有限公司 | A kind of metal double polar plates and assemble method of fuel cell pile |
| CN110289431A (en) * | 2019-06-28 | 2019-09-27 | 北京航天石化技术装备工程有限公司 | A kind of fuel cell flow field board of zigzag |
| CN110380075A (en) * | 2019-06-28 | 2019-10-25 | 北京航天石化技术装备工程有限公司 | A kind of fuel cell pile of side air inlet |
| CN111162289A (en) * | 2019-12-31 | 2020-05-15 | 上海神力科技有限公司 | Inner edge positioning hot-pressing tool for bonding fuel cell bipolar plates |
| RU2723294C1 (en) * | 2019-12-30 | 2020-06-09 | Акционерное общество "Группа компаний ИнЭнерджи" (АО "ГК ИнЭнерджи") | Bipolar plate for stacks of fuel cells |
| CN112615021A (en) * | 2020-12-24 | 2021-04-06 | 海卓动力(青岛)能源科技有限公司 | Symmetric fuel cell bipolar plate |
| CN113334582A (en) * | 2021-06-08 | 2021-09-03 | 一汽解放汽车有限公司 | Graphite bipolar plate processing device and processing method |
| CN114597437A (en) * | 2022-03-16 | 2022-06-07 | 浙江锋源氢能科技有限公司 | Metal bipolar plate and direct methanol fuel cell |
| RU2785834C1 (en) * | 2022-08-17 | 2022-12-14 | Общество с ограниченной ответственностью "Инэнерджи" (ООО "Инэнерджи") | Bipolar fuel cell cold store |
| CN117525471A (en) * | 2023-12-15 | 2024-02-06 | 新研氢能源科技有限公司 | Bipolar plate with height compensation function for fuel cell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183723A (en) * | 2007-12-13 | 2008-05-21 | 上海交通大学 | Metal sheet profiled proton exchange membrane fuel cell bipolar plate |
| CN101867053A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Fuel cell stack for jointly applying intraplate counter-flow flow field and interpolate counter-flow flow field |
-
2012
- 2012-12-03 CN CN201210509907.1A patent/CN102969513B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183723A (en) * | 2007-12-13 | 2008-05-21 | 上海交通大学 | Metal sheet profiled proton exchange membrane fuel cell bipolar plate |
| CN101867053A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Fuel cell stack for jointly applying intraplate counter-flow flow field and interpolate counter-flow flow field |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746123A (en) * | 2014-02-18 | 2014-04-23 | 武汉理工大学 | Metal bipolar plate for proton exchange membrane fuel battery and electric pile formed by same |
| CN103746123B (en) * | 2014-02-18 | 2016-08-31 | 武汉理工大学 | Dual polar plates of proton exchange membrane fuel cell and the pile of composition thereof |
| CN103894470A (en) * | 2014-03-27 | 2014-07-02 | 华南理工大学 | Method for manufacturing bipolar plate of fuel cell |
| CN105702968A (en) * | 2014-11-28 | 2016-06-22 | 中国科学院大连化学物理研究所 | Metal stamping bipolar plate with simple structure |
| CN104900886A (en) * | 2015-05-27 | 2015-09-09 | 江苏绿遥燃料电池系统制造有限公司 | Metal bipolar plate with convection type cooling liquid flow field |
| CN104900886B (en) * | 2015-05-27 | 2017-09-26 | 江苏氢电新能源有限公司 | A kind of metal double polar plates with convection type coolant flow field |
| CN109728320A (en) * | 2018-11-27 | 2019-05-07 | 清华大学 | A kind of fuel cell efficient full frame flow field bipolar plates and its battery pile |
| CN109935842A (en) * | 2019-04-01 | 2019-06-25 | 中自环保科技股份有限公司 | A kind of metal double polar plates and assemble method of fuel cell pile |
| CN110289431A (en) * | 2019-06-28 | 2019-09-27 | 北京航天石化技术装备工程有限公司 | A kind of fuel cell flow field board of zigzag |
| CN110380075A (en) * | 2019-06-28 | 2019-10-25 | 北京航天石化技术装备工程有限公司 | A kind of fuel cell pile of side air inlet |
| RU2723294C1 (en) * | 2019-12-30 | 2020-06-09 | Акционерное общество "Группа компаний ИнЭнерджи" (АО "ГК ИнЭнерджи") | Bipolar plate for stacks of fuel cells |
| WO2021137730A1 (en) * | 2019-12-30 | 2021-07-08 | Общество с ограниченной ответственностью "Инэнерджи" (ООО "Инэнерджи") | Bipolar plate for fuel cell stacks |
| CN111162289A (en) * | 2019-12-31 | 2020-05-15 | 上海神力科技有限公司 | Inner edge positioning hot-pressing tool for bonding fuel cell bipolar plates |
| CN112615021A (en) * | 2020-12-24 | 2021-04-06 | 海卓动力(青岛)能源科技有限公司 | Symmetric fuel cell bipolar plate |
| CN113334582A (en) * | 2021-06-08 | 2021-09-03 | 一汽解放汽车有限公司 | Graphite bipolar plate processing device and processing method |
| CN114597437A (en) * | 2022-03-16 | 2022-06-07 | 浙江锋源氢能科技有限公司 | Metal bipolar plate and direct methanol fuel cell |
| RU2785834C1 (en) * | 2022-08-17 | 2022-12-14 | Общество с ограниченной ответственностью "Инэнерджи" (ООО "Инэнерджи") | Bipolar fuel cell cold store |
| CN117525471A (en) * | 2023-12-15 | 2024-02-06 | 新研氢能源科技有限公司 | Bipolar plate with height compensation function for fuel cell |
| CN117525471B (en) * | 2023-12-15 | 2024-06-04 | 新研氢能源科技有限公司 | Bipolar plate with height compensation function for fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102969513B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102969513B (en) | Large-area metal bipolar plate for automobile fuel cell | |
| CN100466351C (en) | Proton exchange film fuel battery dual-pole board based on thin plate punching | |
| CN207558943U (en) | A kind of fuel battery double plates | |
| CN105702968B (en) | A kind of metal stamping bipolar plates of simple structure | |
| CN210443621U (en) | Metal matrix bipolar plate | |
| CN108172857B (en) | Fuel cell stack flow field plate supporting high-current-density discharge | |
| CN109802153B (en) | Process for manufacturing metal bipolar plate of fuel cell and forming device | |
| CN102683718A (en) | Bipolar plate for fuel cell | |
| CN201266641Y (en) | Metal double polar plate of fuel cell | |
| CN114639839A (en) | Metal bipolar plate sealing and coolant channel structure | |
| CN109560305B (en) | Metal bipolar plate and processing method | |
| CN111697246A (en) | Bipolar plate structure and fuel cell | |
| CN106898783A (en) | A kind of fuel cell membrane electrode die-cutting apparatus and application method | |
| CN100388540C (en) | Impacted metal double polar plate structure and preparation method thereof | |
| CN102544544B (en) | Fluid flow plate assemblies for fuel cells | |
| US10103390B2 (en) | Method for producing kiss cut fluid flow field plates | |
| CN210576224U (en) | Ultra-light air-cooled fuel cell metal bipolar plate | |
| CN101071868A (en) | Method for integrating directalcohol fuel cell membrane electrode assembly with three functions structure | |
| CN104900886A (en) | Metal bipolar plate with convection type cooling liquid flow field | |
| CN205645995U (en) | Polar plate and fuel cell for proton exchange membrane fuel cell | |
| CN213583872U (en) | Bipolar plate of fuel cell | |
| US20150288005A1 (en) | Low cost fuel cell components | |
| CN112968189A (en) | Air cooling type fuel cell anode plate | |
| CN210296509U (en) | Air-cooled ultra-light fuel cell anode plate | |
| CN101071869A (en) | Mould for integrating direct alcohol fuel cell membrane electrode assembly with three functions structure |
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 | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160727 Address after: 201306 Shanghai, Nanhui, the new town of the West Lake Road, No. two, No. 888, No. Patentee after: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: Shanghai Jiao Tong University |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190410 Address after: 200030 No. 1954 Huashan Road, Xuhui District, Shanghai Co-patentee after: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. Patentee after: SHANGHAI JIAO TONG University Address before: 201306 Shanghai Pudong New Area Nanhui new town 888 West Road two Patentee before: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Peng Linfa Inventor after: Yi Peiyun Inventor after: Xu Zhutian Inventor after: Laixinmin Inventor before: Yi Peiyun Inventor before: Peng Linfa Inventor before: Xu Zhutian Inventor before: Laixinmin |
|
| CB03 | Change of inventor or designer information | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200030 No. 1954, Huashan Road, Shanghai, Xuhui District Patentee after: SHANGHAI JIAO TONG University Patentee after: Shanghai Zhizhen new energy Co.,Ltd. Address before: 200030 No. 1954, Huashan Road, Shanghai, Xuhui District Patentee before: SHANGHAI JIAO TONG University Patentee before: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |