CN206834255U - A kind of pem fuel cell stack - Google Patents
A kind of pem fuel cell stack Download PDFInfo
- Publication number
- CN206834255U CN206834255U CN201720683561.5U CN201720683561U CN206834255U CN 206834255 U CN206834255 U CN 206834255U CN 201720683561 U CN201720683561 U CN 201720683561U CN 206834255 U CN206834255 U CN 206834255U
- Authority
- CN
- China
- Prior art keywords
- membrane electrode
- electrode assembly
- fuel cell
- cell stack
- pem fuel
- 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
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Classifications
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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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- Fuel Cell (AREA)
Abstract
The utility model discloses between a kind of pem fuel cell stack, including left and right end plate, middle membrane electrode assembly and end plate and membrane electrode assembly, the gasket seal that is set between membrane electrode assembly composition, the membrane electrode assembly is waveform membrane electrode assembly；Pem fuel cell stack of the present utility model, by the way that membrane electrode assembly is processed into wave-like, add the response area of unit space, improve the utilization rate of membrane electrode, the effect of bipolar plates and gas diffusion layers is taken into account using metal polyporous material simultaneously, traditional bipolar plates are eliminated, section contact resistance is reduced and triggers ohmic loss, improve the power density of pem cell heap；Membrane electrode assembly is respectively arranged with corresponding flow field structure simultaneously and uses corresponding metal material, improves its electric conductivity, hydrophobicity and decay resistance.
Description
Technical field
Field of fuel cell technology is the utility model is related to, more particularly to a kind of pem fuel cell stack.
Background technology
Proton Exchange Membrane Fuel Cells (PEMFC) is due to cleaning, efficient, the energy is renewable, and being expected to should as portable power source
Used in fields such as the vehicles, electronic product and national defense and military, the extensive concern of domestic and international researcher is received.Current grinds
Study carefully and be concentrated mainly on plate and frame battery structure, and be concentrated mainly in the research of bipolar plate structure, and membrane electrode utilization rate compared with
Low, there is the defects of volumetric power density and not high mass power density in Proton Exchange Membrane Fuel Cells.
Utility model content
The defects of the purpose of this utility model is to overcome prior art, there is provided a kind of pem fuel cell stack,
What the technical scheme of the pem fuel cell stack was realized in：
A kind of pem fuel cell stack, it is characterised in that：The pem fuel cell stack includes left and right
Between end plate, middle membrane electrode assembly and end plate and membrane electrode assembly, the gasket seal that is set between membrane electrode assembly composition, institute
State and bolt hole and bolt are provided with a side end panel, another side end panel is provided with the bolt corresponding with bolt hole, institute
State to also set up on end plate and be respectively equipped with collector plate, be arranged on the membrane electrode assembly the corresponding positioning hole of bolt and
Pad hole relatively corresponding with gasket seal, the membrane electrode assembly are waveform membrane electrode assembly, after composition assembles i.e.
Pem cell heap can be formed.
Further, the membrane electrode assembly is the membrane electrode assembly of punched.
Further, the membrane electrode assembly includes three-decker, respectively two outside layers gas diffusion layers and gas
PEM between diffusion layer.
Further, the membrane electrode assembly is five-layer structure, between the gas diffusion layers and PEM also
Include one layer of catalyst layer respectively.
Further, the gas diffusion layers are metal diffusion layer, and the metal diffusion layer is sintered metal fiber gas
Body diffused layer.
Preferably, the double layer of metal fiber gas diffusion layer of the membrane electrode assembly is porous gas diffusion layers.
It is further preferred that the gas diffusion layers are additionally provided with flow field channel, described wherein one layer is anode gold
Belong to diffusion layer, another layer is cathodic metal diffusion layer.
When it is implemented, the flow field channel of the anode metal diffusion layer is interdigitated flow field channel, the cathodic metal
Diffusion layer is serpentine flow passage.
When it is implemented, the anode metal diffusion layer and cathodic metal diffusion layer further respectively have hydrogen gateway and oxygen
Gas gateway.
Preferably, the PEM is Nafion perfluoro sulfonic acid membranes.
Pem fuel cell stack of the present utility model, by the way that membrane electrode assembly is processed into wave-like, increase
The response area of unit space, the utilization rate of membrane electrode is improved, while bipolar plates and gas are taken into account using metal polyporous material
The effect of diffusion layer, traditional bipolar plates are eliminated, reduce section contact resistance and trigger ohmic loss, improve proton friendship
Change the power density of film battery heap；Membrane electrode assembly is respectively arranged with corresponding flow field structure simultaneously and uses corresponding metal
Material, its electric conductivity, hydrophobicity and decay resistance are improved, there is higher reference to be worth.
Brief description of the drawings
Fig. 1 is overall structure of the explosion figure of the present utility model；
Fig. 2 is membrane electrode assembly microstructure schematic diagram of the present utility model；
Fig. 3 is the parallel flow anodic configuration schematic diagram of membrane electrode assembly of the present utility model；
Fig. 4 is the cathode flow field structural representation of membrane electrode assembly of the present utility model.
Reference：End plate on the left of 1-, 1'- right sides end plate, 2- membrane electrode assemblies, 3- gasket seals, 11- collector plates, 12-
Bolt, 13- bolts hole, 14- bolts, the 15- mouths of pipe, 21- hydrogen inlets, 21'- hydrogen inlets, 22- positioning bolt holes, 23-
Pad hole, the interdigitated flow field channels of 24-, 24'- serpentine flow passages, 25- hydrogen outlets, 25'- oxygen outlets, 201- gases expand
Dissipate layer, 202- PEMs, 203- catalyst layers.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 to 4, a kind of pem fuel cell stack, including left side end plate 1, right side end plate 1', centre
The gasket seal 3 set between membrane electrode assembly 2 and end plate and membrane electrode assembly, between membrane electrode assembly forms, the left side
Bolt hole 13 and bolt 14 are provided with end plate 1, right side end plate 1' is provided with the bolt 12 corresponding with bolt hole 13,
Also set up on the end plate 1 and 1' and be respectively equipped with collector plate 11, it is corresponding to be arranged at bolt 14 on the membrane electrode assembly 2
Positioning bolt hole 22 and pad hole 23 relatively corresponding with gasket seal 3, the membrane electrode assembly 2 be waveform membrane electrode
Component, pem cell heap can be formed after composition assembles.
When it is implemented, the membrane electrode assembly 2 is the membrane electrode assembly of punched.
Further, the membrane electrode assembly 2 includes three-decker, respectively two outside layers gas diffusion layers 201 and
PEM 202 between gas diffusion layers.
Further, the membrane electrode assembly is five-layer structure, the gas diffusion layers 201 and PEM 202
Between respectively further comprise one layer of (not shown) of catalyst layer 203.
Preferably, the gas diffusion layers 201 are metal diffusion layer, and the metal diffusion layer is sintered metal fiber gas
Diffusion layer.
It is further preferred that the double layer of metal fiber gas diffusion layer of the membrane electrode assembly 2 is porous gas diffusion
Layer.
It is further preferred that the gas diffusion layers 201 are additionally provided with flow field channel, described wherein one layer is sun
Pole metal diffusion layer, another layer are cathodic metal diffusion layer.
When it is implemented, the flow field channel of the anode metal diffusion layer is interdigitated flow field channel 24, the negative electrode gold
Category diffusion layer is serpentine flow passage 24'.
When it is implemented, the anode metal diffusion layer is provided with hydrogen inlet 21 and hydrogen outlet 25, the cathodic metal
Diffusion layer is provided with oxygen intake 21' and oxygen outlet 25'.
When it is implemented, the PEM 202 is Nafion perfluoro sulfonic acid membranes.
Technology contents and technical characteristic of the present utility model have revealed that as above those skilled in the art still may base
The replacement and modification without departing substantially from the utility model in essence are made in teaching of the present utility model, therefore, the utility model protection
Scope is not limited to the content disclosed in embodiment, also including various replacements and modification without departing substantially from the utility model in essence.
Claims (9)
- A kind of 1. pem fuel cell stack, it is characterised in that：The pem fuel cell stack includes left and right end Between plate, middle membrane electrode assembly and end plate and membrane electrode assembly, the gasket seal that is set between membrane electrode assembly composition, it is described Bolt hole and bolt are provided with one side end panel, another side end panel is provided with the bolt corresponding with bolt hole, described Also set up on end plate and be respectively equipped with collector plate, be arranged on the membrane electrode assembly the corresponding positioning hole of bolt and with The relatively corresponding pad hole of gasket seal, the membrane electrode assembly are waveform membrane electrode assembly, after composition assembles Form pem cell heap.
- 2. pem fuel cell stack according to claim 1, it is characterised in that：The membrane electrode assembly is punching press The membrane electrode assembly of type.
- 3. pem fuel cell stack according to claim 1, it is characterised in that：The membrane electrode assembly includes three Rotating fields, the respectively PEM between two outside layers gas diffusion layers and gas diffusion layers.
- 4. pem fuel cell stack according to claim 3, it is characterised in that：The membrane electrode assembly is five layers Structure, one layer of catalyst layer is respectively further comprised between the gas diffusion layers and PEM.
- 5. the pem fuel cell stack according to claim 3 or 4, it is characterised in that：The gas diffusion layers are Metal diffusion layer, the metal diffusion layer are sintered metal fiber gas diffusion layers.
- 6. the pem fuel cell stack according to claim 3 or 4, it is characterised in that：The membrane electrode assembly Double layer of metal fiber gas diffusion layer is porous gas diffusion layers.
- 7. the pem fuel cell stack according to claim 3 or 4, it is characterised in that：Two layers of gas diffusion Layer is additionally provided with flow field channel, and described wherein one layer is anode metal diffusion layer, and another layer is cathodic metal diffusion layer.
- 8. pem fuel cell stack according to claim 7, it is characterised in that：The anode metal diffusion layer Flow field channel is interdigitated flow field channel, and the cathodic metal diffusion layer is serpentine flow passage.
- 9. pem fuel cell stack according to claim 7, it is characterised in that：The anode metal diffusion layer and Cathodic metal diffusion layer further respectively has hydrogen gateway and oxygen gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683561.5U CN206834255U (en) | 2017-06-13 | 2017-06-13 | A kind of pem fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683561.5U CN206834255U (en) | 2017-06-13 | 2017-06-13 | A kind of pem fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834255U true CN206834255U (en) | 2018-01-02 |
Family
ID=60775919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720683561.5U Expired - Fee Related CN206834255U (en) | 2017-06-13 | 2017-06-13 | A kind of pem fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206834255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU191123U1 (en) * | 2018-04-09 | 2019-07-25 | Закрытое акционерное общество "Межрегиональное производственное объединение технического комплектования "ТЕХНОКОМПЛЕКТ" (ЗАО "МПОТК "ТЕХНОКОМПЛЕКТ") | FLOW BATTERY CELL |
| CN112838233A (en) * | 2021-01-22 | 2021-05-25 | 中汽创智科技有限公司 | Fuel cell gas diffusion layer, electrode, membrane electrode assembly, single cell and preparation method thereof |
-
2017
- 2017-06-13 CN CN201720683561.5U patent/CN206834255U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU191123U1 (en) * | 2018-04-09 | 2019-07-25 | Закрытое акционерное общество "Межрегиональное производственное объединение технического комплектования "ТЕХНОКОМПЛЕКТ" (ЗАО "МПОТК "ТЕХНОКОМПЛЕКТ") | FLOW BATTERY CELL |
| CN112838233A (en) * | 2021-01-22 | 2021-05-25 | 中汽创智科技有限公司 | Fuel cell gas diffusion layer, electrode, membrane electrode assembly, single cell and preparation method thereof |
| CN112838233B (en) * | 2021-01-22 | 2023-02-28 | 中汽创智科技有限公司 | Fuel cell gas diffusion layer, electrode, membrane electrode assembly, single cell and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20200613 |