CN1996647A - Thin metal dual-pole board of proton exchange film fuel battery - Google Patents
Thin metal dual-pole board of proton exchange film fuel battery Download PDFInfo
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- CN1996647A CN1996647A CNA2007100564146A CN200710056414A CN1996647A CN 1996647 A CN1996647 A CN 1996647A CN A2007100564146 A CNA2007100564146 A CN A2007100564146A CN 200710056414 A CN200710056414 A CN 200710056414A CN 1996647 A CN1996647 A CN 1996647A
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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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Abstract
This invention discloses one proton exchange film fuel battery metal double electrode board, which comprises anode flow board, cathode flow field board and two flow field board supportive board, wherein, the flow field type is of single channel of snake flow field and the anode is of semi round shape; the cathode flow board oxidation agent is open groove with section for rectangle shape or round shape; the said two flow field board is impacted by stainless steel board with thickness of 0.1 to 0.2 mm to form good conductive anti-erosion process.
Description
Technical field
The present invention relates to proton exchanging film fuel battery parts, relate in particular to a kind of thin metal dual-pole board of proton exchange film fuel battery.
Background technology
Proton Exchange Membrane Fuel Cells (Proton Exchange Membrane Fuel Cells, PEMFC) be raw material with hydrogen and oxygen, directly produce electric energy, energy conversion efficiency height (40-60%), environmental protection, being the desirable alternate power source of internal combustion engine power plant, still is desirable removable power supply, household electrical source and dispersion power station simultaneously.Usually, Proton Exchange Membrane Fuel Cells is formed by some groups of element cell assemblings.Each element cell is made up of membrane electrode assembly, bipolar plates and potted component again.The batch manufacturing technology of membrane electrode assembly and potted component is ripe, and the design of bipolar plates, manufacturing technology are still in development and improving.Bipolar plates should have following three aspect functions: (1) fluid distribution as an important component part of Proton Exchange Membrane Fuel Cells.The catalyst layer that fuel and oxidant is transported to anode and negative electrode respectively reacts, and unreacted oxidant is taken the water that cathode reaction generates out of by flow-field plate, suffer water logging to prevent negative electrode; (2) mechanical support.The support membrane electrode so that fuel and oxidant can react formulating under the pressure; (3) afflux.The Series Sheet battery forms current path.In order to realize above-mentioned functions, dual polar plates of proton exchange membrane fuel cell should have following performance: (1) good electrical conductivity.Bipolar plates must have as far as possible little resistance to guarantee battery performance; (2) good chemical stability and decay resistance.Be corroded rear surface resistance of bipolar plates increases, and then battery performance is descended, so flow-field plate must be a resistant material; (3) good thermal conductivity.Make each reaction zone temperature even, improve electrode efficiency; (4) good air-tightness.Air-tightness is well to prevent that cathode and anode gas permeation flow-field plate is directly reacted in battery pile, reduces the performance of battery pile even causes danger; (5) mechanical strength height.Light weight, volume is little, easily processing.Flow-field plate light weight and volume I make the quality of fuel cell become big than power and volumetric specific power, and processing then can be enhanced productivity easily, reduces battery cost greatly; (6) stream with uniform distribution body.The even distribution of fluid can make fuel and oxidant evenly arrive catalyst layer, helps making full use of catalyst, thereby improves fuel cell performance greatly.
In the prior art, the material of dual polar plates of proton exchange membrane fuel cell mainly adopts graphite cake and metallic plate.Wherein, graphite bi-polar plate can satisfy the fuel cell performance requirement, but the manufacturing cost height of graphite bi-polar plate accounts for more than 60% of battery pile total cost, cause the Proton Exchange Membrane Fuel Cells total cost higher, this has become the commercial main cause of obstruction fuel cell.Metal double polar plates has intensity height, advantage of low manufacturing cost, is the development trend of bipolar plate technology, is to make effective technical way low-cost, the high-performance Proton Exchange Membrane Fuel Cells.For example: Chinese invention patent application notification number is CN1787261, open day is on June 14th, 2006, " a kind of impacted metal double polar plate structure and preparation method thereof " disclosed, it is by two sheet metal punch process and assemble, flow-field channel and flow field boss are staggered, the positive antisymmetry of bipolar plates, and positive flow-field channel is the flow field boss at the back side, positive flow field boss is the flow-field channel at the back side, and the rigidity of this metal double polar plates is relatively poor.Therefore, realize that the commercial key of Proton Exchange Membrane Fuel Cells is the batch manufacturing technology of low cost, high-performance, high strength bipolar plates.
Summary of the invention
The present invention is for solving the relatively poor technical problem of metal double polar plates intensity in the prior art, provides a kind of and can satisfy Proton Exchange Membrane Fuel Cells function and performance requirement, the thin metal dual-pole board of proton exchange film fuel battery that is suitable for the industrial mass manufacturing reasonable in design, with low cost.
In order to solve the problems of the technologies described above, the technical scheme that thin metal dual-pole board of proton exchange film fuel battery of the present invention is implemented is: it is made up of anode flow field board, cathode flow field plate and supporting bracket, the flow field form of described anode flow field board is the single channel flow field of crawling, the Oxidizer distribution pipeline of described cathode flow field plate is open groove, carries out good electricity after described positive and negative utmost point flow-field plate is shaped and leads the processing of corrosion resistant coating; The cross section of the channel groove of described anode flow field board is semicircle, and the cross section of described open groove is a square or semicircle; Be provided with supporting bracket between described two flow-field plate, the thickness of described supporting bracket is gash depth sum on two flow-field plate, the position of groove is mutually orthogonal on described two flow-field plate, the groove difference of described two flow-field plate is supporting bracket dorsad, the back side contact of described two flow-field plate, described supporting bracket is provided with groove with the one side that described cathode flow field plate contacts, and described groove is consistent with the Oxidizer distribution pipeline groove on the described cathode flow field plate.
Thin metal dual-pole board of proton exchange film fuel battery of the present invention, the radius of described channel groove are 0.75mm.The length of side of the open groove of described square is 1.5mm.The radius of the open groove of described semicircle is 0.75mm.Described two flow-field plate are stamped to form by stainless sheet steel, and described supporting bracket is formed by the light aluminum alloy cut.The thickness of described two flow-field plate is 0.1-0.2mm.
Compared with prior art, the invention has the beneficial effects as follows:, therefore, under the identical situation of metal bipolar plate thickness, strengthened the rigidity of thin metal dual-pole board greatly because the present invention is provided with supporting plate structure between thin metal dual-pole board.
Description of drawings
Fig. 1-the 1st, anode flow field plate structure figure in the thin metal dual-pole board of proton exchange film fuel battery of the present invention;
Fig. 1-2 is the local amplification profile of A-A slice location among Fig. 1-1;
Fig. 1-the 3rd, the local amplification profile of B-B slice location among Fig. 1-1;
Fig. 2-the 1st, cathode flow field plate structure chart in the thin metal dual-pole board of proton exchange film fuel battery of the present invention;
Fig. 2-the 2nd, the front view of cathode flow field plate shown in Fig. 2-1;
Fig. 3-the 1st, supporting plate structure figure in the thin metal dual-pole board of proton exchange film fuel battery of the present invention;
Fig. 3-the 2nd, the front view of supporting bracket shown in Fig. 3-1;
Fig. 4-the 1st, thin metal dual-pole board of proton exchange film fuel battery assembling vertical view of the present invention;
Fig. 4-the 2nd, the assembling of bipolar plates shown in Fig. 4-1 front view.
The explanation of main position Reference numeral in being below:
10---anode flow field board 20---cathode flow field plate 30---supporting brackets
11,21,31---bolt hole 12---fuel gas inlet hole 13---o-ring grooves
14,24---gas distribution pipeline calibration hole 15---fuel gas flow field groove
22---fuel gas pipeline via hole 23---air flow field groove 33---grooves
34---calibration hole
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in drawings, thin metal dual-pole board of proton exchange film fuel battery of the present invention is by anode flow field board 10, cathode flow field plate 20 and supporting bracket 30 are formed, as Fig. 1-1, shown in Fig. 1-2 and Fig. 1-3, the flow field form of described anode flow field board 10 is the single channel flow field of crawling, act as a fuel the cross section of flow field channel groove of gas distribution pipeline 15 for semicircle, its radius is 0.75mm, in the end of 15 1 of fuel gas distribution duct is fuel gas inlet 12, be positioned at flow field channel groove outer periphery and be equipped with o-ring groove 13, described anode flow field board 10 is stamped to form by stainless sheet steel, its thickness is 0.1-0.2mm, carries out good electricity after stainless sheet steel is shaped and leads the processing of corrosion resistant coating; Shown in Fig. 2-1 and Fig. 2-2, use the situation of air at fuel cell as oxidant, the Oxidizer distribution pipe design of described cathode flow field plate 20 is become open groove, the cross section of described open groove is a square or semicircle, if square, its length of side is preferably 1.5mm, if it is semicircle, its radius is preferably 0.75mm, described cathode flow field plate 20 is stamped to form by stainless sheet steel, its thickness is 0.1-0.2mm, carries out good electricity after stainless sheet steel is shaped and leads the processing of corrosion resistant coating; Because anode and cathode flow field plate are that punching press is made, and sheet material is thinner, therefore, shown in Fig. 4-1 and Fig. 4-2, supporting bracket 30 is set between metal double polar plates, and relies on the bolt hole 11,21,31 on each plate, anode flow field board 10 and cathode flow field plate 20 are assembled into one.Shown in Fig. 3-1 and Fig. 3-2, described supporting bracket 30 is a hollow structure, form by the light aluminum alloy cut, its thickness is gash depth sum on negative electrode and the anode flow field board, described supporting bracket 30 is provided with groove 33 with the one side that described cathode flow field plate 20 contacts, and described groove 33 is consistent with the Oxidizer distribution pipeline groove 23 on the described cathode flow field plate.During assembling, after in the o-ring groove 13 of anode flow field board 10, placing sealing ring, described supporting bracket 30 is between described anode flow field board 10 and described cathode flow field plate 20, the groove difference of described anode flow field board 10 and cathode flow field plate 20 is supporting bracket 30 dorsad, the back side contact of described two flow-field plate, the position of groove is mutually orthogonal on described two flow-field plate.Can load lotus to adapt to fuel battery so that the thin metal flow field plate of bipolar plates has enough rigidity like this.In addition, when assembling, fuel gas inlet hole 12 on the cathode flow field plate and the fuel gas pipeline via hole on the anode flow field board 22 are aimed at according to the gas distribution pipeline calibration hole on the bipolar plates 14,24.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within the protection of the present invention.
Claims (6)
1. thin metal dual-pole board of proton exchange film fuel battery, comprise anode flow field board and cathode flow field plate, the flow field form of described anode flow field board is the single channel flow field of crawling, the Oxidizer distribution pipeline of described cathode flow field plate is open groove, carries out good electricity after described positive and negative utmost point flow-field plate is shaped and leads the processing of corrosion resistant coating; It is characterized in that:
The cross section of the channel groove of described anode flow field board is semicircle, and the cross section of described open groove is a square or semicircle; Be provided with supporting bracket between described two flow-field plate, the thickness of described supporting bracket is gash depth sum on two flow-field plate, the position of groove is mutually orthogonal on described two flow-field plate, the groove difference of described two flow-field plate is supporting bracket dorsad, the back side contact of described two flow-field plate, described supporting bracket is provided with groove with the one side that described cathode flow field plate contacts, and described groove is consistent with the Oxidizer distribution pipeline groove on the described cathode flow field plate.
2. according to the described thin metal dual-pole board of proton exchange film fuel battery of claim 1, it is characterized in that: the radius of described channel groove is 0.75mm.
3. according to the described thin metal dual-pole board of proton exchange film fuel battery of claim 1, it is characterized in that: the length of side of the open groove of described square is 1.5mm.
4. according to the described thin metal dual-pole board of proton exchange film fuel battery of claim 1, it is characterized in that: the radius of the open groove of described semicircle is 0.75mm.
5. according to the described thin metal dual-pole board of proton exchange film fuel battery of claim 1, it is characterized in that: described two flow-field plate are stamped to form by stainless sheet steel, and described supporting bracket is formed by the light aluminum alloy cut.
6. according to the described thin metal dual-pole board of proton exchange film fuel battery of claim 5, it is characterized in that: the thickness of described two flow-field plate is 0.1-0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100564146A CN100440595C (en) | 2007-01-05 | 2007-01-05 | Thin metal dual-pole board of proton exchange film fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100564146A CN100440595C (en) | 2007-01-05 | 2007-01-05 | Thin metal dual-pole board of proton exchange film fuel battery |
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| CN1996647A true CN1996647A (en) | 2007-07-11 |
| CN100440595C CN100440595C (en) | 2008-12-03 |
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| CNB2007100564146A Expired - Fee Related CN100440595C (en) | 2007-01-05 | 2007-01-05 | Thin metal dual-pole board of proton exchange film fuel battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428672A (en) * | 2015-12-15 | 2016-03-23 | 江苏绿遥燃料电池系统制造有限公司 | Embedded sealing method of special polar plates for high-power-density PEMFC (proton exchange membrane fuel cell) pile |
| CN105428678A (en) * | 2015-12-15 | 2016-03-23 | 江苏绿遥燃料电池系统制造有限公司 | Seal connecting piece for high-power-density PEMFC (proton exchange membrane fuel cell) pile |
| CN105449239A (en) * | 2015-12-15 | 2016-03-30 | 江苏绿遥燃料电池系统制造有限公司 | Externally embedding sealing method of special pole plate of high power density PEMFC electric pile |
| CN109390603A (en) * | 2018-11-15 | 2019-02-26 | 华南理工大学 | A kind of ripple flow-field plate |
| CN111883797A (en) * | 2020-03-31 | 2020-11-03 | 同济大学 | Integrated fuel cell single cell and fuel cell stack |
| CN113948734A (en) * | 2021-10-16 | 2022-01-18 | 素水新材料(上海)有限公司 | Fuel cell stack |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3524802B2 (en) * | 1999-02-24 | 2004-05-10 | 三洋電機株式会社 | Polymer electrolyte fuel cell |
| CN1416184A (en) * | 2001-11-01 | 2003-05-07 | 哈尔滨工业大学 | Metal compound bipolar plate of fuel cell with proton exchange film |
| JP2005150053A (en) * | 2003-11-20 | 2005-06-09 | Nissan Motor Co Ltd | Solid electrolyte fuel cell |
| JP2005166455A (en) * | 2003-12-03 | 2005-06-23 | Nissan Motor Co Ltd | Solid oxide fuel battery cell, cell plate, and its manufacturing method |
| CN100388540C (en) * | 2004-12-10 | 2008-05-14 | 新源动力股份有限公司 | Impacted metal double polar plate structure and preparation method thereof |
-
2007
- 2007-01-05 CN CNB2007100564146A patent/CN100440595C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428672A (en) * | 2015-12-15 | 2016-03-23 | 江苏绿遥燃料电池系统制造有限公司 | Embedded sealing method of special polar plates for high-power-density PEMFC (proton exchange membrane fuel cell) pile |
| CN105428678A (en) * | 2015-12-15 | 2016-03-23 | 江苏绿遥燃料电池系统制造有限公司 | Seal connecting piece for high-power-density PEMFC (proton exchange membrane fuel cell) pile |
| CN105449239A (en) * | 2015-12-15 | 2016-03-30 | 江苏绿遥燃料电池系统制造有限公司 | Externally embedding sealing method of special pole plate of high power density PEMFC electric pile |
| CN105428672B (en) * | 2015-12-15 | 2018-01-30 | 江苏氢电新能源有限公司 | A kind of embedded encapsulating method of the special pole plate of high power density pemfc stack |
| CN105449239B (en) * | 2015-12-15 | 2018-02-16 | 江苏氢电新能源有限公司 | A kind of externally embedded type encapsulating method of the special pole plate of high power density pemfc stack |
| CN109390603A (en) * | 2018-11-15 | 2019-02-26 | 华南理工大学 | A kind of ripple flow-field plate |
| CN111883797A (en) * | 2020-03-31 | 2020-11-03 | 同济大学 | Integrated fuel cell single cell and fuel cell stack |
| CN113948734A (en) * | 2021-10-16 | 2022-01-18 | 素水新材料(上海)有限公司 | Fuel cell stack |
| CN113948734B (en) * | 2021-10-16 | 2023-10-13 | 素水新材料(上海)有限公司 | fuel cell stack |
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| CN100440595C (en) | 2008-12-03 |
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