CN201655892U - Fuel battery splicing bipolar plate - Google Patents
Fuel battery splicing bipolar plate Download PDFInfo
- Publication number
- CN201655892U CN201655892U CN201020145582XU CN201020145582U CN201655892U CN 201655892 U CN201655892 U CN 201655892U CN 201020145582X U CN201020145582X U CN 201020145582XU CN 201020145582 U CN201020145582 U CN 201020145582U CN 201655892 U CN201655892 U CN 201655892U
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- Prior art keywords
- splicing
- conversion zone
- electrochemical
- electrochemical reaction
- fuel cell
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a fuel battery splicing bipolar plate, characterized in that: the bipolar plate comprises an electrochemical reaction area and a non-electrochemical reaction area and the electrochemical reaction area is spliced with the non-electrochemical reaction area, wherein the electrochemical reaction area is arranged in the middle and the non-electrochemical reaction area is arranged at the perimeter of the electrochemical reaction area. The material of the non-electrochemical reaction area is a non-conductive material. The bipolar plate of the fuel battery is divided into the electrochemical reaction area and the non-electrochemical reaction area and each area is compositely spliced to form an integral bipolar plate and a novel fuel battery is formed by laminating the bipolar plate. The conduction performance of the bipolar plate is optimized, the loss is reduced, the efficiency is increased, meanwhile the material cost is effectively reduced and the production complexity is simplified.
Description
Technical field
The utility model belongs to the fuel cell technology field, particularly the bipolar plates of fuel cell.
Background technology
Fuel cell is made of a plurality of battery units usually, and each battery unit comprises two electrodes (anode and negative electrode), and these two electrodes are separated by electrolyte element, and assembling with being one another in series, forms fuel cell pack.By supplying with suitable reactant for each electrode, promptly give an electrode fueling and another supply oxidant, the realization electrochemical reaction, thus between electrode, form potential difference, and therefore produce electric energy.
In order to give each electrode supply response thing, use the specific interface element that is commonly referred to " bipolar plates " and is arranged on the both sides of each single battery.The form of the discrete component that the normally contiguous male or female supporter of these bipolar plates is placed.Bipolar plates is the critical elements of fuel battery.Fuel cell piles up in the running, bipolar plates is carried out optimum Working and the useful life of following function to keep fuel cell pack: (1) battery conductive body, the pole plate both sides form the negative electrode anode respectively, and the battery unit series connection is to form fuel cell pack one by one; (2) provide reaction gas (mass transfer) by runner to electrode; (3) coordinate water and hot management, prevent that coolant and reacting gas from leaking outside; (4) provide the structural strength support to membrane electrode assembly (MEA).
For finishing above-mentioned functions, the material require of bipolar plates has high conductivity, enough mechanical strength, good thermal conductance, gas permeation rate is low, anticorrosive and can be in battery operated environment chemically stable considerable time.In addition, consider design and be easy to the needs of processing and manufacturing that the material of bipolar plates also should possess in light weight, volume is little, and is with low cost, even requires feature such as recyclable utilization.
Because the operational environment of the electrochemical reaction of fuel cell, the material of employing also must electrochemical corrosion resistants and are had good structural strength and stability.Therefore the bipolar plates of a high performance battery to be designed, the factor of various aspects must be taken into full account.The material that is generally used for cell bipolar plate comprises: carbon plate, metallic plate etc.Traditionally the battery pole plate use carbon plate to be because its have preferably conduct electricity, heat transfer and anticorrosive property.And use the reason of metallic plate to be that it has good electrical conductivity, structural strength and mouldability, also be good material through surperficial corrosion-resistant treatments as battery lead plate.
Because the manufacturing cost of battery pole plates is high, for reducing the cost of fuel cell, one of striving direction of the design of fuel cell is exactly to seek to optimize the design and the manufacture method of cell bipolar plate in addition.
The utility model content
The purpose of this utility model is to provide a kind of fuel cell splicing bipolar plates, to optimize the design of existing fuel battery double plates.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fuel cell splicing bipolar plates, described bipolar plates comprises electrochemical reaction zone and non-electrochemical conversion zone, splicing is connected with the non-electrochemical conversion zone in described electrochemical reaction zone.
Further, described electrochemical reaction zone is positioned at the middle part, and described non-electrochemical conversion zone is positioned at described electrochemical reaction area peripheral edge.
Further, the material of described non-electrochemical conversion zone is a non-conducting material.
Further, the density of material of described non-electrochemical conversion zone is every cubic centimetre of 0.1 to 1.5 gram.
Further, bonding connection between the corresponding splicing part of described electrochemical reaction zone and described non-electrochemical conversion zone part of splicing mutually and described non-electrochemical conversion zone.
Further, extruding connection between the corresponding splicing part of described electrochemical reaction zone and described non-electrochemical conversion zone part of splicing mutually and described non-electrochemical conversion zone.
Further, hot pressing connection between the corresponding splicing part of described electrochemical reaction zone and described non-electrochemical conversion zone part of splicing mutually and described non-electrochemical conversion zone.
Further, described electrochemical reaction zone is a step with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is the corresponding step of falling.
Further, described electrochemical reaction zone is a zigzag with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is the corresponding zigzag of falling.
Further, described electrochemical reaction zone is one or more projectioies with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is corresponding one or more grooves.
Further, described electrochemical reaction zone is one or more grooves with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is corresponding one or more projectioies.
Further, described electrochemical reaction zone and described non-electrochemical conversion zone splice mutually on the sidewall respectively that correspondence is provided with an annular recess, are provided with an annular seal bar in the described annular recess.
The utility model is divided into electrochemical reaction zone and non-electrochemical conversion zone with the bipolar plates of fuel cell, and each zone is by the complete bipolar plates of compound splicing formation, and is superimposed and built novel fuel cell with such bipolar plates.The pole plate electric conductivity has been optimized in the design of this cell bipolar plate, has reduced loss, has improved efficient, effectively reduces material cost simultaneously and has simplified the complexity of making.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structural representation of the splicing bipolar plates embodiment one of the utility model fuel cell;
Fig. 2 is the A-A cutaway view of the splicing bipolar plates embodiment two of the utility model fuel cell;
Fig. 3 is the A-A cutaway view of the splicing bipolar plates embodiment three of the utility model fuel cell;
Fig. 4 is the A-A cutaway view of the splicing bipolar plates embodiment four of the utility model fuel cell;
Fig. 5 is the A-A cutaway view of the splicing bipolar plates embodiment five of the utility model fuel cell.
Fig. 6 is the structural representation of the splicing bipolar plates embodiment six of the utility model fuel cell.
Embodiment
Embodiment one
As shown in Figure 1, a kind of fuel cell splicing bipolar plates, described bipolar plates comprises electrochemical reaction zone 1 and non-electrochemical conversion zone 2,2 splicings are connected with the non-electrochemical conversion zone in described electrochemical reaction zone 1.Electrochemical reaction zone 1 described in the utility model is meant the zone that fueling and oxidant react, this subregion also has catalyst coat on the proton exchange mould usually corresponding to parts such as the runner that directly contacts with the proton exchange mould on proton exchange mould, the bipolar plates, air-permeable layer.But not electrochemical reaction zone 2 is meant the zone that electrochemical reaction does not take place.This non-electrochemical conversion zone 2 is used to support described electrochemical reaction zone 1, bears extraneous active force.
The utility model can effectively reduce design difficulty by electrochemical reaction zone 1 and separately design of non-electrochemical conversion zone 2 with bipolar plates.For example, the bipolar plate material in described electrochemical reaction zone 1 can adopt the material that satisfies fuel battery double plates to make, as adopting carbon plate, metallic plate etc.And the material that the bipolar plate material of described non-electrochemical conversion zone 2 can adopt the cheapness with certain intensity and heat resistance to be easy to machine-shaping is made, 1 splicing of electrochemical reaction zone is connected in this non-electrochemical conversion zone 2 and gets final product during assembling, make things convenient for the processing and the making of this part, effectively reduced manufacturing cost.Even when losing effectiveness, all can reclaim this two parts zone respectively, and utilize again in electrochemical reaction zone 1.Make fuel cell pack environmental protection more.
Further, the material of described non-electrochemical conversion zone 2 is a non-conducting material.For example ABS (by styrene-butadiene-acrylonitrile is the base terpolymers), PVC insulating material such as (pvc materials), particularly can select this subregion of the little material of some density, the density of material of for example described non-electrochemical conversion zone 2 is every cubic centimetre of 0.1 to 1.5 gram, those skilled in the art can select the material of this part area as required flexibly, as long as this material satisfies in the utility model the requirement to this part material property, promptly can support described electrochemical reaction zone 1, and bear extraneous active force, and characteristic such as insulation.Can significantly alleviate the weight of the fuel cell of making like this, a nearly step cuts down the consumption of energy.Conversion zone and its peripheral non-reaction zone territory are with a kind of electric conducting material in the bipolar plates of existing fuel cell, this part electric current that makes reaction produce passes through from its peripheral non-reaction zone territory, form eddy current, cause the gradient deviation of electric current, cause the generation of current loss phenomenon, this harmful current phenomenon causes the fuel cell pack reduction in useful life easily, even short circuit current takes place.The utility model is by electrochemical reaction zone 1 and separately design of non-electrochemical conversion zone 2 with bipolar plates, and adopt insulating material to make described non-electrochemical conversion zone 2, electric current is passed through from electrochemical reaction zone 2 equably, avoided the generation of eddy current, improved the useful life of fuel cell pack, prevent the generation of short circuit current, improved the fail safe that fuel cell uses.
Wherein, wherein, described electrochemical reaction zone 1 can have independently a plurality of, as 2 to 16 etc., in the present embodiment is 1, and by described non-electrochemical conversion zone 2 separately.Described electrochemical reaction zone 1 is positioned at the middle part, and described non-electrochemical conversion zone 2 is positioned at described electrochemical reaction zone 1 periphery.
Wherein, described non-electrochemical conversion zone 2 is provided with the reactant transfer passage 4 that communicates with the runner in described electrochemical reaction zone 2.This transfer passage 4 is used for the reactant in electrochemical reaction zone 1 and carries.Mode of communicating between the runner in concrete transfer passage 4 and described electrochemical reaction zone 2 and structure can adopt the multiple correlation technique of existing bipolar plates to realize, in the detailed description of this omission to this part.
Wherein, described non-electrochemical conversion zone 2 is provided with installing hole 3, is used for the fuel cell pack assembling.Compare with the fuel battery double plates of existing monoblock design, the fuel battery double plates that the utility model provides, because non-electrochemical conversion zone 2 does not participate in reaction, and make things convenient for material forming processing, cost descends, whole fuel cell material weight also declines to a great extent, and causes the damage of bipolar plates when not worrying assembling, and has reduced the assembling requirement of fuel cell pack.
Wherein, can be to be designed to connected modes such as bonding, extruding, hot pressing according to manufacturing conditions between the corresponding splicing part of described electrochemical reaction zone 1 and described non-electrochemical conversion zone 2 part of splicing mutually and described non-electrochemical conversion zone 2.
Embodiment two
As shown in Figure 2, present embodiment and embodiment one are except that the splicing part shape is different, and other parts are identical.Fig. 2 is the A-A cutaway view of Fig. 1, and among Fig. 2, described electrochemical reaction zone 1 is a step with the part that described non-electrochemical conversion zone 2 splices mutually, and the splicing part of described non-electrochemical conversion zone 2 is the corresponding step of falling.
Embodiment three
As shown in Figure 3, present embodiment and embodiment one are except that the splicing part shape is different, and other parts are identical.Fig. 3 is the A-A cutaway view of Fig. 1, and among Fig. 3, described electrochemical reaction zone 1 is a zigzag with the part that described non-electrochemical conversion zone 2 splices mutually, and the splicing part of described non-electrochemical conversion zone 2 is the corresponding zigzag of falling.
Embodiment four
As shown in Figure 4, present embodiment and embodiment one are except that the splicing part shape is different, and other parts are identical.Fig. 4 is the A-A cutaway view of Fig. 1, and among Fig. 4, described electrochemical reaction zone 1 is one or more projectioies with the part that described non-electrochemical conversion zone 2 splices mutually, and the splicing part of described non-electrochemical conversion zone 2 is corresponding one or more grooves.
Also can be, described electrochemical reaction zone 1 be one or more grooves with the part that described non-electrochemical conversion zone 2 splices mutually, and the splicing part of described non-electrochemical conversion zone 2 is corresponding one or more projectioies.
Embodiment five
As shown in Figure 5, present embodiment and embodiment one are except that the splicing part shape is different, and other parts are identical.Fig. 5 is the A-A cutaway view of Fig. 1, and among Fig. 5, described electrochemical reaction zone 1 and described non-electrochemical conversion zone 2 splice mutually on the sidewall respectively that correspondence is provided with an annular recess, are provided with an annular seal bar 5 in the described annular recess.Realize the sealing of splicing part by this annular seal bar at sealing strip 5 places.
During installation, can earlier annular seal bar 5 be nested in the annular recess in described electrochemical reaction zone 1, then described electrochemical reaction zone 1 be pressed in the described non-electrochemical conversion zone 2.
Embodiment six
Present embodiment and embodiment one are except that described electrochemical reaction zone has independently four, and by described non-electrochemical conversion zone over 2 minutes, other is identical with embodiment one.And can adopt and implement two to five connecting method.
Above-described embodiment only is used to illustrate technological thought of the present utility model and characteristics, its purpose is to make those skilled in the art can understand content of the present utility model and implements according to this, can not only limit claim of the present utility model with present embodiment, for example adopt other connecting method to realize being connected of described electrochemical reaction zone 1 and described non-electrochemical conversion zone 2, as long as bipolar plates adopts the separately design of electrochemical reaction zone and non-electrochemical conversion zone, any other equivalent variations or modification all drop within the claim of the present utility model.
Claims (12)
1. a fuel cell splices bipolar plates, it is characterized in that: described bipolar plates comprises electrochemical reaction zone and non-electrochemical conversion zone, and splicing is connected with the non-electrochemical conversion zone in described electrochemical reaction zone.
2. fuel cell splicing bipolar plates according to claim 1, it is characterized in that: described electrochemical reaction zone is positioned at the middle part, and described non-electrochemical conversion zone is positioned at described electrochemical reaction area peripheral edge.
3. fuel cell splicing bipolar plates according to claim 2, it is characterized in that: the material of described non-electrochemical conversion zone is a non-conducting material.
4. fuel cell splicing bipolar plates according to claim 3 is characterized in that: the density of material of described non-electrochemical conversion zone is every cubic centimetre of 0.1 to 1.5 gram.
5. fuel cell according to claim 4 splicing bipolar plates is characterized in that: bonding connection between the part that described electrochemical reaction zone and described non-electrochemical conversion zone splice mutually and the corresponding splicing part of described non-electrochemical conversion zone.
6. fuel cell according to claim 5 splicing bipolar plates is characterized in that: extruding connection between the part that described electrochemical reaction zone and described non-electrochemical conversion zone splice mutually and the corresponding splicing part of described non-electrochemical conversion zone.
7. fuel cell according to claim 5 splicing bipolar plates is characterized in that: hot pressing connection between the part that described electrochemical reaction zone and described non-electrochemical conversion zone splice mutually and the corresponding splicing part of described non-electrochemical conversion zone.
8. according to the described fuel cell splicing of arbitrary claim in the claim 1 to 7 bipolar plates, it is characterized in that: described electrochemical reaction zone is a step with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is the corresponding step of falling.
9. according to the described fuel cell splicing of arbitrary claim in the claim 1 to 7 bipolar plates, it is characterized in that: described electrochemical reaction zone is a zigzag with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is the corresponding zigzag of falling.
10. according to the described fuel cell splicing of arbitrary claim in the claim 1 to 7 bipolar plates, it is characterized in that: described electrochemical reaction zone is one or more projectioies with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is corresponding one or more grooves.
11. according to the described fuel cell splicing of arbitrary claim in the claim 1 to 7 bipolar plates, it is characterized in that: described electrochemical reaction zone is one or more grooves with the part that described non-electrochemical conversion zone splices mutually, and the splicing part of described non-electrochemical conversion zone is corresponding one or more projectioies.
12. according to the described fuel cell splicing of arbitrary claim in the claim 1 to 7 bipolar plates, it is characterized in that: described electrochemical reaction zone and described non-electrochemical conversion zone splice mutually on the sidewall respectively that correspondence is provided with an annular recess, are provided with an annular seal bar in the described annular recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020145582XU CN201655892U (en) | 2010-03-30 | 2010-03-30 | Fuel battery splicing bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020145582XU CN201655892U (en) | 2010-03-30 | 2010-03-30 | Fuel battery splicing bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655892U true CN201655892U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020145582XU Expired - Lifetime CN201655892U (en) | 2010-03-30 | 2010-03-30 | Fuel battery splicing bipolar plate |
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| Country | Link |
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| CN (1) | CN201655892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826621A (en) * | 2010-03-30 | 2010-09-08 | 上海恒劲动力科技有限公司 | Bipolar plate for fuel cells |
| EP2492999A1 (en) * | 2010-03-30 | 2012-08-29 | Shanghai Everpower Technologies Ltd. | Fuel cell with multiple independent reaction regions |
-
2010
- 2010-03-30 CN CN201020145582XU patent/CN201655892U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826621A (en) * | 2010-03-30 | 2010-09-08 | 上海恒劲动力科技有限公司 | Bipolar plate for fuel cells |
| WO2011120426A1 (en) * | 2010-03-30 | 2011-10-06 | 上海恒劲动力科技有限公司 | Bipolar plate for fuel cell |
| EP2492997A1 (en) * | 2010-03-30 | 2012-08-29 | Shanghai Everpower Technologies Ltd. | Bipolar plate for fuel cell |
| EP2492999A1 (en) * | 2010-03-30 | 2012-08-29 | Shanghai Everpower Technologies Ltd. | Fuel cell with multiple independent reaction regions |
| EP2492997A4 (en) * | 2010-03-30 | 2012-11-28 | Shanghai Everpower Technologies Ltd | Bipolar plate for fuel cell |
| EP2492999A4 (en) * | 2010-03-30 | 2012-12-26 | Shanghai Everpower Technologies Ltd | Fuel cell with multiple independent reaction regions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI EVERPOWER POWER TECHNOLOGY (CANADA) CO., Free format text: FORMER OWNER: SHANGHAI EVERPOWER POWER TECHNOLOGY CO., LTD. Effective date: 20121017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121017 Address after: Ben City, British Columbia, Canada Patentee after: Shanghai Heng Heng Power Technology (Canada) Co., Ltd. Address before: 201203 Shanghai Zhangjiang hi tech park, No. 1388 East Cheung Road, building 1 Patentee before: Shanghai Everpower Technologies Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180717 Address after: Pudong New Area, Shanghai, China (Shanghai) free trade trial area, 1000 Jinsui Road, 2 Building 1, E area, 2 floor, E area Patentee after: Shanghai Everpower Technologies Ltd. Address before: Ben City, British Columbia, Canada Patentee before: Shanghai Heng Heng Power Technology (Canada) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |