CN2580609Y - Plastic bipolar plate of direct methanol fuel cell - Google Patents
Plastic bipolar plate of direct methanol fuel cell Download PDFInfo
- Publication number
- CN2580609Y CN2580609Y CN02257928U CN02257928U CN2580609Y CN 2580609 Y CN2580609 Y CN 2580609Y CN 02257928 U CN02257928 U CN 02257928U CN 02257928 U CN02257928 U CN 02257928U CN 2580609 Y CN2580609 Y CN 2580609Y
- Authority
- CN
- China
- Prior art keywords
- direct methanol
- methanol fuel
- fuel cell
- substrate
- boss
- 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 - Fee Related
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002056 binary alloy Inorganic materials 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- -1 polyethylene Polymers 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
A direct methanol fuel resistance plastic bipolar plate takes polyethylene, ABS and other plastics as a substrate, and a conductive metal layer with a thickness of 3-36 μm is electroplated or chemically plated on the surface of the substrate. Two sides of the polar plate are provided with flow passages which are communicated with the inlet and the outlet and symmetrically distributed in two directions, the inlet and the outlet are through holes, one end of each through hole is provided with a boss, and the other end of each through hole is provided with a groove which is in sealing fit with the boss. The heat exhausting holes running through the longitudinal direction and the transverse direction are arranged on the peripheral side surface of the base body and are isolated from the flow channel. The utility model discloses light in weight, easily processing, the yield is high, and is with low costs, is convenient for realize the evenly distributed of fluid concentration and the effective sealing of inlet outlet department, and has fine radiating effect.
Description
Technical field
The utility model relates to a kind of fuel battery double plates, particularly adopts the reversible passage design, and there is the plastics bipolar plates of the coat of metal on the surface.
Background technology
Direct methanol fuel cell is a kind of device that the chemical energy of methyl alcohol and oxidant can be converted into electric energy.The described direct methanol fuel cell of the utility model patent is meant liquid methanol in the temperature range of room temperature to 80 ℃ electrocatalysis oxidation reaction is taken place on anode, generates CO
2And hydrogen ion, and discharge electronics; Electronics is transmitted to negative electrode by external circuit, jointly oxygen is carried out the electrical catalyze reduction reaction at cathode surface with the hydrogen ion that is diffused into negative electrode by proton exchange membrane, generates water.
Direct methanol fuel cell is to develop a kind of energy conversion device come (except the fuel difference that is adopted from Proton Exchange Membrane Fuel Cells, miscellaneous part material and electric pile structure and Proton Exchange Membrane Fuel Cells are all basic identical), therefore, just produced some new problems in the direct methanol fuel cell running,, methyl alcohol lower such as catalyst activity passes proton exchange membrane easily, and to be penetrated into the weight of negative electrode, pile more high.In view of methyl alcohol has that the source is abundant, low price, toxicity are little, be liquid at normal temperatures, be easy to carry about with one and advantage such as storage, direct methanol fuel cell is specially adapted to the supporting market of small portable product.And for small-sized direct methanol fuel battery, transport vehicle as fluid and electronics, the structure of bipolar plates and material design decision reactant and flow regime, CONCENTRATION DISTRIBUTION and the pile weight of product in runner, influence the critical component of performance of direct methanol fuel cells thereby bipolar plates is become.
At present, direct methanol fuel cell is still continued to use the graphite bi-polar plate or the metal double polar plates (as nickel-base alloy, ferrous alloy etc.) of Proton Exchange Membrane Fuel Cells, but there is following shortcoming in these two kinds of bipolar plates:
1) weight is heavier, the processing technology complexity, and rate of finished products is low, costs an arm and a leg;
2) the difficult effective sealing that realizes the fluid intake place.
In addition, the unidirectional runner design of Proton Exchange Membrane Fuel Cells is also continued to use in the runner design of existing direct methanol fuel cell bipolar plates at present, the bipolar plates that adopts this design to process often causes fluid intake place concentration and exit concentration to exist than large deviation, make methanol concentration uneven distribution occur, thereby further influence the output performance of direct methanol fuel cell.
Summary of the invention
The purpose of this utility model be exactly provide in order to overcome the problem that above-mentioned prior art exists a kind of in light weight, be easy to processing, rate of finished products height, cheap, be convenient to realize effective sealing at stream socket place and the even direct methanol fuel cell plastics bipolar plates that distributes of methanol concentration.
The purpose of this utility model can be achieved through the following technical solutions: be provided with the runner that communicates with import and export in the both sides of rectangular substrate, improvements are that described substrate is a plastic plate, can adopt plastic plates such as polyethylene, polypropylene, ABS resin or phenolic resin, there is conductive metal layer on the surface, described runner is that bi-directional symmetrical distributes, described import and export is perpendicular to the through hole on runner plane, and an end of through hole has boss, and the other end has the groove that is sealed and matched with boss.
The conductive metal layer of above-mentioned plastic sheet surface has three layers, and the innermost layer is copper, nickel, iron or its binary alloy layer, and the centre is nickel, iron or dilval layer, and outermost layer is Ni-Sic, Ni-Wc or Ni-SiO
2Composite bed.The thickness of every layer of conductive metal layer is 3～36 μ m.The outer rim of described boss is with sealing ring.The side is provided with the heat extraction hole that connects the longitudinal and transverse direction of substrate around the substrate, and this heat extraction hole and runner are isolated.
The utility model is owing to adopted above technical scheme, promptly adopt the basis material of plastics as the direct methanol fuel cell bipolar plates, and on described plastics bipolar plates basis material electro-deposition or chemical plating three layers of conducting metal of 3～36um thickness realize the electric transmission function of baffler, the reduction of the existing graphite bi-polar plate of weight ratio of direct methanol fuel cell bipolar plates about 20%～50%, price is reduced to about 10% of graphite bi-polar plate, can also realize preferably producing in batches.The utility model also can be that the boss design fits sealing ring of 0.8～1.5mm and the groove design at the boss back side realize the sealing that fluid transmits preferably by the height at fluid inlet and outlet place.The utility model also is provided with the bi-directional symmetrical runner on described direct methanol fuel cell plastics bipolar plates, thereby the homogeneity that improves fluid concentrations distributes.In addition, the utility model also is provided with the heat extraction hole on four sides of described direct methanol fuel cell plastics bipolar plates, thereby reaches better radiating effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is a B-B profile among Fig. 1;
Fig. 5 is an A-A part section enlarged drawing among Fig. 1.
Embodiment
As figure, the both sides of rectangular substrate 1 are provided with bi-directional symmetrical runner 2, and substrate adopts the vinyon plate, and there are three layers of electrodeposited coating 3 on the surface, the ground floor electroless copper, and thick 3 μ m, second layer nickel plating, thick 30 μ m, the 3rd layer is Ni-SiO
2Composite galvanized coating, thick 20 μ m.The import and export of runner are through hole, and through hole one end has boss 4, and the other end has the groove 5 that is sealed and matched with boss, and the boss outer rim has sealing ring 6.The side is provided with the heat extraction hole 7 that connects the longitudinal and transverse direction of substrate around the substrate, and this heat extraction hole and runner are isolated.
Claims (5)
1, a kind of direct methanol fuel cell plastics bipolar plates, be provided with the runner that communicates with import and export in the both sides of rectangular substrate, it is characterized in that described substrate is a plastic plate, there is conductive metal layer on the surface, described runner is that bi-directional symmetrical distributes, described import and export is perpendicular to the through hole on runner plane, and an end of through hole has boss, and the other end has the groove that is sealed and matched with boss.
2, by the described direct methanol fuel cell plastics of claim 1 bipolar plates, the conductive metal layer that it is characterized in that plastic sheet surface has three layers, the innermost layer is copper, nickel, iron or its binary alloy layer, and the centre is nickel, iron or dilval layer, and outermost layer is Ni-Sic, Ni-Wc or Ni-SiO
2Composite bed.
3, by the described direct methanol fuel cell plastics of claim 2 bipolar plates, the thickness that it is characterized in that every layer of conductive metal layer is 3～36 μ m.
4, by the described direct methanol fuel cell plastics of claim 1 bipolar plates, it is characterized in that the outer rim of described boss is with sealing ring.
5, by the described direct methanol fuel cell plastics of claim 1 bipolar plates, it is characterized in that substrate is provided with the heat extraction hole that connects the longitudinal and transverse direction of substrate in the side all around, this heat extraction hole and runner are isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02257928U CN2580609Y (en) | 2002-10-24 | 2002-10-24 | Plastic bipolar plate of direct methanol fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02257928U CN2580609Y (en) | 2002-10-24 | 2002-10-24 | Plastic bipolar plate of direct methanol fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580609Y true CN2580609Y (en) | 2003-10-15 |
Family
ID=33725782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02257928U Expired - Fee Related CN2580609Y (en) | 2002-10-24 | 2002-10-24 | Plastic bipolar plate of direct methanol fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580609Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359742C (en) * | 2004-04-15 | 2008-01-02 | 南亚电路板股份有限公司 | Flat-plate type direct methanol fuel cell and its producing method |
| CN100413129C (en) * | 2005-08-25 | 2008-08-20 | 中国科学院大连化学物理研究所 | Air self-suction type direct alcohols fuel battery pole plate and its application |
| CN100413128C (en) * | 2004-12-23 | 2008-08-20 | 南亚电路板股份有限公司 | Pole plates of tabulate type direct methanol fuel cells and manufacturing method |
| CN100454622C (en) * | 2004-11-29 | 2009-01-21 | 三星Sdi株式会社 | Bipolar plate and direct liquid feed fuel cell stack |
| WO2016008327A1 (en) * | 2014-07-17 | 2016-01-21 | 北京锦源创新科技有限公司 | Bipolar plate for fuel cell and manufacturing method thereof |
| CN113270608A (en) * | 2021-06-07 | 2021-08-17 | 嘉寓氢能源科技(辽宁)有限公司 | Metal bipolar plate of proton exchange membrane fuel cell beneficial to fluid distribution |
| US11670781B2 (en) | 2021-05-24 | 2023-06-06 | National Tsing Hua University | Fuel cell bipolar flow field plate and fuel cell stack |
-
2002
- 2002-10-24 CN CN02257928U patent/CN2580609Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359742C (en) * | 2004-04-15 | 2008-01-02 | 南亚电路板股份有限公司 | Flat-plate type direct methanol fuel cell and its producing method |
| CN100454622C (en) * | 2004-11-29 | 2009-01-21 | 三星Sdi株式会社 | Bipolar plate and direct liquid feed fuel cell stack |
| US8119306B2 (en) | 2004-11-29 | 2012-02-21 | Samsung Sdi Co., Ltd. | Bipolar plate and direct liquid feed fuel cell stack |
| CN100413128C (en) * | 2004-12-23 | 2008-08-20 | 南亚电路板股份有限公司 | Pole plates of tabulate type direct methanol fuel cells and manufacturing method |
| CN100413129C (en) * | 2005-08-25 | 2008-08-20 | 中国科学院大连化学物理研究所 | Air self-suction type direct alcohols fuel battery pole plate and its application |
| WO2016008327A1 (en) * | 2014-07-17 | 2016-01-21 | 北京锦源创新科技有限公司 | Bipolar plate for fuel cell and manufacturing method thereof |
| US11670781B2 (en) | 2021-05-24 | 2023-06-06 | National Tsing Hua University | Fuel cell bipolar flow field plate and fuel cell stack |
| CN113270608A (en) * | 2021-06-07 | 2021-08-17 | 嘉寓氢能源科技(辽宁)有限公司 | Metal bipolar plate of proton exchange membrane fuel cell beneficial to fluid distribution |
| CN113270608B (en) * | 2021-06-07 | 2022-07-15 | 嘉寓氢能源科技(辽宁)有限公司 | Metal bipolar plate of proton exchange membrane fuel cell beneficial to fluid distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |