CN203288692U - Fuel battery bipolar plate - Google Patents
Fuel battery bipolar plate Download PDFInfo
- Publication number
- CN203288692U CN203288692U CN2013202737121U CN201320273712U CN203288692U CN 203288692 U CN203288692 U CN 203288692U CN 2013202737121 U CN2013202737121 U CN 2013202737121U CN 201320273712 U CN201320273712 U CN 201320273712U CN 203288692 U CN203288692 U CN 203288692U
- Authority
- CN
- China
- Prior art keywords
- fuel
- plate body
- oxidant
- chute
- resin plate
- 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.)
- Expired - Lifetime
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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
Abstract
The utility model relates to a fuel battery bipolar plate, which comprises a resin plate body, wherein a fuel flow field and an oxidizing agent flow field are arranged on two lateral surfaces of the resin plate body respectively; through grooves serving as air cooling flow passages are formed in side surfaces of the resin plate body; metal column layers are wrapped in the resin plate body; the fuel flow passage comprises multiple fuel guide launders; a first collection layer is arranged on ribs on two sides of each fuel guide launder; the oxidizing agent flow field comprises multiple oxidizing agent guide launders; a second collection layer is arranged on ribs on two sides of each oxidizing agent launder; the first collection layers and the second collection layers are connected via the metal column layers. Compared with the prior art, resin and metal columns are used for manufacturing the bipolar plate, so that the weight of the bipolar plate is reduced; through grooves are formed in side surfaces of the resin plate body, so that uniform heat dissipation of the interior of a fuel battery can be realized; the fuel battery bipolar plate can improve both output power and service life of the fuel battery, is simple in structure and convenient to manufacture, and can be molded at one time.
Description
Technical field
The utility model relates to a kind of fuel battery double plates, especially a kind of compound bipolar plates of metal-resin with Homogeneouslly-radiating.
Background technology
Along with the in short supply and global climate of the traditional energies such as fossil constantly warms, facing mankind huge energy crisis and existence crisis.Need badly and seek novel, efficient, clean energy resource and progressively substitute traditional energy with the reply energy crisis.Fuel cell becomes the focus of world's every country research with its excellent performance, in generating, portable power source, brought into play great function on vehicle power.The research of fuel cell car is day by day deep, but still there is the technical bottleneck problem in its commercialization, and, except factors such as cell durability and costs, how alleviating bipolar plates weight, improving fuel battery inside heat radiation uniformity is also one of key issue.
What play the generating effect in fuel cell is membrane electrode, membrane electrode mainly is comprised of the Pt/C electrode of the catalyst action that electrifies respectively in the proton exchange membrane both sides and the gas diffusion layers that carbon paper is made, and the voltage that 1 monocell produces is lower, in order to make fuel cell be used for practical application, must be concatenated the composition pile to a plurality of monocells by the dividing plate that plays electric action, one side of this dividing plate contacts with the anode-side of 1 monocell, opposite side contacts with the cathode side of adjacent single cells, therefore this plate is called bipolar plates.Its one of critical material of battery that acts as a fuel, its performance good and bad power output and useful life that directly affects fuel cell, in addition, have document to show that bipolar plates accounts for 60%～70% of whole pile quality, its cost accounts for 46% of fuel cell total cost.The challenge that faces at present is to alleviate pile quality and volume, reduces costs.
The material that the patent about bipolar plates of delivering at present extensively adopts is atresia graphite cake, metallic plate and compound bipolar plates." bipolar plates that is used for the PEM fuel cell " (patent No. CN1454397A) of the people such as K Brigit Fischer (Schmidt) invention, it is by the built-in metal layer and be positioned on the both sides of metal level and two non-conductive resin beds surrounding this metal level form, these non-conductive resin beds form the surface of bipolar plates, and wherein metal level has the conductive connection part position on one or more and two surfaces and resin bed and has surperficial runner for gas transport.The method realizes the bipolar plates lightweight, but processed complex, and metal with interlaminar resin every being connected, modulus of elasticity is different, during compression easily distortion cause local loose contact.This bipolar plate runner, take the resin coated metal as main, dispels the heat poor simultaneously, easily causes local temperature too high, causes the decay of aging and life-span of fuel cell material.
The utility model content
The purpose of this utility model be exactly provide in order to overcome the defect that above-mentioned prior art exists a kind of simple in structure, easy to process, quality alleviates, the fuel battery double plates of good heat dissipation effect.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fuel battery double plates, comprise the resin plate body, and this resin plate body both side surface is respectively equipped with fuel flow field and oxidant flow field, and resin plate body side offers the through slot as air-cooled runner, wherein is enclosed with the metal column layer in the resin plate body.
Described fuel flow field comprises that many are led the fuel chute, each muscle of leading fuel chute both sides is provided with the first afflux layer, described oxidant flow field comprises that many are led the oxidant chute, each muscle of leading oxidant chute both sides is provided with the second afflux layer, and described metal column layer connects the first afflux layer and the second afflux layer.
The Si Jiaochu of described resin plate body is provided with the public runner of fuel and the public runner of oxidant that connects both sides before and after the resin plate body, the public runner of described fuel with lead the fuel chute and be communicated with, the public runner of described oxidant with lead the oxidant chute and be communicated with.
The described quantity of leading the fuel chute or leading the oxidant chute is 2～50.
Described the first afflux layer and the second afflux layer are the sheet metal for collected current.
Described metal column layer is comprised of the metal column of array arrangement.
Described through slot, lead the fuel chute, lead the oxidant chute, the public runner of fuel and the public runner of oxidant be rectangular-shaped.
The resin that described resin plate body is a kind of heatproof, corrosion-resistant, withstand voltage, insulation, plasticity is strong, be selected from vinylite, bisphenol A-type resin, organic siliconresin, epoxy resin, phenolic resins, mylar, polyamide resin, acrylic resin, Corvic, polyethylene, polystyrene or polytetrafluoroethylene.
Compared with prior art, the utlity model has following advantage and beneficial effect:
(1) bipolar plates of making compared to atresia graphite cake or metallic plate, the utility model use resin and metal column to make bipolar plates, have alleviated the weight of bipolar plates;
(2) through slot as air-cooled runner is offered in resin plate body of the present utility model side, realizes the fuel battery inside Homogeneouslly-radiating;
(3) bipolar plate structure of the present utility model is simple, and is easily manufactured, but the bipolar plates one-shot forming, and manufacturing cost reduces;
(4) bipolar plates of the present utility model can improve power output and the useful life of fuel cell.
Description of drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is Facad structure schematic diagram of the present utility model;
Fig. 3 is structure schematic diagram of the present utility model;
Fig. 4 is side-looking structural representation of the present utility model;
Fig. 5 is A-A face sectional structure schematic diagram in Fig. 2;
Fig. 6 is the structural representation that the utility model is used for assembling fuel cell.
In figure: 1 is the resin plate body, and 2 is through slot, and 3 is fuel flow field, 4 for leading the fuel chute, 5 is the first afflux layer, and 6 is the metal column layer, and 7 is the public runner of fuel, 8 is the public runner of oxidant, 9 is oxidant flow field, and 10 for leading the oxidant chute, and 11 is the second afflux layer, 12 is diffusion layer, and 13 is film.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
A kind of fuel battery double plates, as shown in Fig. 1～5, comprise resin plate body 1, this resin plate body 1 both side surface is respectively equipped with fuel flow field 3 and oxidant flow field 9, resin plate body 1 side opening is provided with the through slot 2 as air-cooled runner, wherein is enclosed with metal column layer 6 in resin plate body 1.Metal column layer 6 is comprised of the metal column of array arrangement.Fuel flow field 3 comprises that many are led fuel chute 4, each muscle of leading fuel chute 4 both sides is provided with the first afflux layer 5, oxidant flow field 9 comprises that many are led oxidant chute 10, each muscle of leading oxidant chute 10 both sides is provided with the second afflux layer 11, the first afflux layer 5 and the second afflux layer 11 are the sheet metal for collected current, and metal column layer 6 connects as the through slot 2 of air-cooled runner and connects the first afflux layer 5 and the second afflux layer 11.The Si Jiaochu of resin plate body 1 is provided with the public runner 7 of fuel and the public runner 8 of oxidant that connects resin plate body 1 both sides, front and back, the public runner 7 of fuel with lead fuel chute 4 and be communicated with, the public runner 8 of oxidant with lead oxidant chute 10 and be communicated with.The quantity of generally leading fuel chute 4 or leading oxidant chute 10 is 2～50.Wherein, lead fuel chute 4 or lead between oxidant chute 10 and through slot 2 as air-cooled runner and be not communicated with, be not communicated with between the public runner 7 of fuel or the public runner 8 of oxidant and through slot 2 as air-cooled runner.Through slot 2, lead fuel chute 4, lead oxidant chute 10, the public runner 7 of fuel and the public runner 8 of oxidant be rectangular-shaped.
The resin that resin plate body 1 is a kind of heatproof, corrosion-resistant, withstand voltage, insulation, plasticity is strong, be selected from vinylite, bisphenol A-type resin, organic siliconresin, epoxy resin, phenolic resins, mylar, polyamide resin, acrylic resin, Corvic, polyethylene, polystyrene or polytetrafluoroethylene.
As shown in Figure 6, bipolar plates of the present utility model is applied to fuel cell, wherein bipolar plates and diffusion layer 12, and the film 13 of fuel cell is compression bonded to each other successively, forms the fuel cell pile structure.The electric current of fuel cell is delivered to the opposite side of bipolar plates by the first afflux layer 5, metal column layer 6 and the second afflux layer 11 from a side of bipolar plates, bipolar plates plays the effect that a plurality of fuel cell series is assembled into pile.Bipolar plates of the present utility model need not arrange the heating of public water flow passage, directly by the through slot 2 as air-cooled runner, is undertaken air-cooledly, can realize the inside battery Homogeneouslly-radiating.
Because electric current is conducting to opposite side by the first afflux layer 5, metal column layer 6 and the second afflux layer 11 from a side of bipolar plates, the safe carrying capacity of common metal post is to determine according to the core maximum temperature, cooling condition, the laid condition that allow.The safe carrying capacity of general copper metal column is 5～8A/mm
2, the safe carrying capacity of aluminum metal post is 3～5A/mm
2As shown in Figure 1, in the present embodiment, metal column layer 6 is comprised of 342 metal columns altogether, totally 19 row, and 18 row, the area of fuel flow field 3 or oxidant flow field 9 is 50cm
2, in the present embodiment, metal column adopts copper plain conductor, and maximum current is 80A, can calculate each metal column through maximum current 0.234A, the area S=0.234/8=0.029mm of respective metal post
2, the diameter of wire that can draw metal column is 0.096mm, close to 0.1mm.Certainly consider the electric current distribution inhomogeneity in practical application, correspondingly multiply by a coefficient of safety, get 2 here, namely the diameter 0.2mm of metal column, have 18 * 19, namely 342.
Claims (7)
1. fuel battery double plates, it is characterized in that, comprise the resin plate body, this resin plate body both side surface is respectively equipped with fuel flow field and oxidant flow field, resin plate body side offers the through slot as air-cooled runner, wherein is enclosed with the metal column layer in the resin plate body.
2. a kind of fuel battery double plates according to claim 1, it is characterized in that, described fuel flow field comprises that many are led the fuel chute, each muscle of leading fuel chute both sides is provided with the first afflux layer, described oxidant flow field comprises that many are led the oxidant chute, each muscle of leading oxidant chute both sides is provided with the second afflux layer, and described metal column layer connects the first afflux layer and the second afflux layer.
3. a kind of fuel battery double plates according to claim 2, it is characterized in that, the Si Jiaochu of described resin plate body is provided with the public runner of fuel and the public runner of oxidant that connects both sides, resin plate body front and back, the public runner of described fuel with lead the fuel chute and be communicated with, the public runner of described oxidant with lead the oxidant chute and be communicated with.
4. a kind of fuel battery double plates according to claim 2, is characterized in that, the described quantity of leading the fuel chute or leading the oxidant chute is 2～50.
5. a kind of fuel battery double plates according to claim 2, is characterized in that, described the first afflux layer and the second afflux layer are the sheet metal for collected current.
6. a kind of fuel battery double plates according to claim 1, is characterized in that, described metal column layer is comprised of the metal column of array arrangement.
7. a kind of fuel battery double plates according to claim 3, is characterized in that, described through slot, lead the fuel chute, lead the oxidant chute, the public runner of fuel and the public runner of oxidant be rectangular-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202737121U CN203288692U (en) | 2013-05-17 | 2013-05-17 | Fuel battery bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202737121U CN203288692U (en) | 2013-05-17 | 2013-05-17 | Fuel battery bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288692U true CN203288692U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202737121U Expired - Lifetime CN203288692U (en) | 2013-05-17 | 2013-05-17 | Fuel battery bipolar plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN203288692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701550B (en) * | 2013-12-10 | 2017-05-17 | 上海空间电源研究所 | Metal bipolar plate of fuel battery |
| CN109888324A (en) * | 2019-01-21 | 2019-06-14 | 西安交通大学 | Longitudinal uniform flow field high-efficiency fuel cell and its working method |
-
2013
- 2013-05-17 CN CN2013202737121U patent/CN203288692U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701550B (en) * | 2013-12-10 | 2017-05-17 | 上海空间电源研究所 | Metal bipolar plate of fuel battery |
| CN109888324A (en) * | 2019-01-21 | 2019-06-14 | 西安交通大学 | Longitudinal uniform flow field high-efficiency fuel cell and its working method |
| CN109888324B (en) * | 2019-01-21 | 2022-06-07 | 西安交通大学 | High-efficiency fuel cell with longitudinal uniform flow field and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |