CN203895518U - High-integration-level fuel cell structure with compensation capacity - Google Patents
High-integration-level fuel cell structure with compensation capacity Download PDFInfo
- Publication number
- CN203895518U CN203895518U CN201420052431.8U CN201420052431U CN203895518U CN 203895518 U CN203895518 U CN 203895518U CN 201420052431 U CN201420052431 U CN 201420052431U CN 203895518 U CN203895518 U CN 203895518U
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- end plate
- integration
- cell structure
- pile
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 10
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims abstract description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- 229910052797 bismuth Inorganic materials 0.000 claims description 4
- 229910052733 gallium Inorganic materials 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910001152 Bi alloy Inorganic materials 0.000 abstract 1
- 229910000807 Ga alloy Inorganic materials 0.000 abstract 1
- 229910001245 Sb alloy Inorganic materials 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a high-integration-level fuel cell structure with compensation capacity. The high-integration-level fuel cell structure with the compensation capacity comprises membrane electrodes, bipolar plates and collector plates, which are assembled between two end plates, wherein each end plate is not provided with a compensation spring, and each end plate is an end plate with a cold-expansion hot-shrinkage property which is made of an antimony, bismuth or gallium alloy material. The high-integration-level fuel cell structure has the beneficial effects that the imbalance of assembly force caused by the dimensional variation of each member inside a galvanic pile due to the hot expansion and cold shrinkage can be completely compensated, no spring is used, more space is saved, the integration level of a fuel cell can be increased, and the volumetric specific power and gravimetric specific power of the galvanic pile can be increased. Meanwhile, the variety of parts is reduced, and the reliability in long-term running of the galvanic pile can be improved to the extent.
Description
Technical field
The utility model belongs to fuel cell technology field, relates in particular to fuel cell pile technology.
Background technology
In prior art, fuel cell end plate is provided with spring, expands and the lax variation that causes fuel battery inside duplexer fastening force of compression by the film in spring deformation effective compensation fuel cell pack, reduces along the variation of fuel cell stack direction load.Taking the initial assembling force of pile as 15KN is as example.Suppose each part dimension decline 3mm in pile, pile assembling force decline 6KN, if extending 3mm, spring compensates each part dimension variation in pile, each spring need discharge elastic potential energy 4kN, at this moment the stressed 15KN of each parts in pile, spring stress 15-4=11KN, obviously this system can not keep balance, and the 4KN potential energy of decline is shared jointly by each parts in spring, pile.The deficiencies in the prior art are: each part dimension declines when identical in pile, and no matter how spring compensates, and all can not make pile maintain original assembling force, and compensation ability is restricted, and compensation effect is not ideal enough; While compensating pile with spring, increase pile usage space and weight, reduce pile volumetric specific power and gravimetric specific power.
Summary of the invention
The purpose of this utility model is to provide a kind of end plate that can compensate the inner assembling force of pile, and it is not enough solving prior art.
The technical solution of the utility model is: a kind of high integration fuel cell structure with compensation ability, comprise the membrane electrode, bipolar plates and the collector plate that are assembled between two end plates, it is characterized in that not establishing counterbalance spring on described two end plates, end plate is the end plate of using the alloy material of antimony, bismuth or the gallium with the character of expanding with cold and contracting with heat to make.
Operation principle of the present utility model is: the operating ambient temperature of fuel cell pack is between-20 DEG C to 80 DEG C, because temperature changes, the variation that the inner each scantling of pile can be expanded with heat and contract with cold, makes the variation that the end plate of pile can expand with cold and contract with heat with antimony, bismuth or gallium.In the time that stack temperature raises, the inner each scantling of pile expands, and thickness has increased S1, and end plate thickness can shrink S1, can effectively alleviate the inner assembling force increasing of pile, prevent that the excessive acceleration components aging speed of pile internal pressure from even damaging bipolar plates or membrane electrode by pressure; In the time that stack temperature reduces, the inner each scantling thickness of pile shrinks S2, end plate thickness swelling S2, can effectively alleviate the reduction of the inner assembling force of pile, prevent that pile internal pressure from reducing to cause assembling force inadequate, cause contacting bipolar plates and the reduction of membrane electrode contact resistance or sealing property and reduce even inefficacy.End plate plays the compensating action of spring simultaneously.
The beneficial effects of the utility model are: the assembling force unbalance that the change in size that can full remuneration pile inner each member expands with heat and contract with cold is brought, compensation efficiency and ability are improved, do not need to use spring, more save space, improve the integrated level of fuel cell, improve pile volumetric specific power and gravimetric specific power.Meanwhile, variety of components reduces, and improves to a certain extent the reliability of pile long-time running.
Brief description of the drawings
Accompanying drawing 1 is not tightening state schematic diagram of pile of the present utility model
Accompanying drawing 2 is pile tightening state pile schematic diagram of the present utility model
Accompanying drawing 3 makees for tradition is used spring the pile schematic diagram compensating
In figure: 1, end plate; 2, end plate sealed groove; 3, end plate O-ring seal; 4, end plate flow field; 5, conductive modified contact pin inside end plate; 6, end plate outside; 7, membrane electrode (MEA); 8, bipolar plates; 9, nut, 10, screw rod, 11, counterbalance spring, 12, collector plate.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
The end plate 1 made from the alloy material of expand with cold and contract with heat material antimony, bismuth or gallium, does not establish counterbalance spring on end plate 1, end plate inner side is provided with conductive modified contact pin 5 inside end plate sealed groove 2, end plate O-ring seal 3, end plate flow field 4 and end plate.Fuel cell pile is superimposed and assembles in the following order: the end plate 1 of one end, bipolar plates 8, membrane electrode (MEA) 7, bipolar plates 8, membrane electrode (MEA) 7 ... to the last a slice membrane electrode (MEA) 7, then place the end plate 1 of collector plate 12 and the other end, the bipolar plates between two end plates and two end plates, membrane electrode (MEA) and collector plate are fastenedly connected with screw rod 10 and nut 9.Compared with doing with tradition use spring the pile compensating, save like this counterbalance spring 11 of both sides, end plate outside, promote fuel cell structure integrated level, thereby reach little, the lightweight effect of fuel cell structure volume, improve to a certain extent volumetric specific power and the gravimetric specific power of fuel cell pack.Meanwhile, variety of components reduces, and improves to a certain extent the reliability of pile long-time running.
Claims (1)
1. one kind has the high integration fuel cell structure of compensation ability, comprise the membrane electrode (7), bipolar plates (8) and the collector plate (12) that are assembled between two end plates (1), it is characterized in that not establishing counterbalance spring on described two end plates (1) end plate of end plate (1) for using the alloy material of antimony, bismuth or the gallium with the character of expanding with cold and contracting with heat to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052431.8U CN203895518U (en) | 2014-01-26 | 2014-01-26 | High-integration-level fuel cell structure with compensation capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052431.8U CN203895518U (en) | 2014-01-26 | 2014-01-26 | High-integration-level fuel cell structure with compensation capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895518U true CN203895518U (en) | 2014-10-22 |
Family
ID=51721879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052431.8U Expired - Lifetime CN203895518U (en) | 2014-01-26 | 2014-01-26 | High-integration-level fuel cell structure with compensation capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895518U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794741A (en) * | 2014-01-26 | 2014-05-14 | 新源动力股份有限公司 | Structure of high-integration-density fuel cell with compensation ability |
| CN106816619A (en) * | 2017-03-09 | 2017-06-09 | 新源动力股份有限公司 | A kind of proton exchange film fuel cell electric piling structure |
| CN111180770A (en) * | 2018-11-09 | 2020-05-19 | 现代自动车株式会社 | Heat treatment apparatus for membrane electrode assembly of fuel cell |
-
2014
- 2014-01-26 CN CN201420052431.8U patent/CN203895518U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794741A (en) * | 2014-01-26 | 2014-05-14 | 新源动力股份有限公司 | Structure of high-integration-density fuel cell with compensation ability |
| CN106816619A (en) * | 2017-03-09 | 2017-06-09 | 新源动力股份有限公司 | A kind of proton exchange film fuel cell electric piling structure |
| CN106816619B (en) * | 2017-03-09 | 2023-12-29 | 新源动力股份有限公司 | Proton exchange membrane fuel cell stack structure |
| CN111180770A (en) * | 2018-11-09 | 2020-05-19 | 现代自动车株式会社 | Heat treatment apparatus for membrane electrode assembly of fuel cell |
| US11870119B2 (en) | 2018-11-09 | 2024-01-09 | Hyundai Motor Company | Heat treatment apparatus of MEA for fuel cell |
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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: 20141022 |