CN100454630C - Low-pressure air breathing fuel cell pile - Google Patents
Low-pressure air breathing fuel cell pile Download PDFInfo
- Publication number
- CN100454630C CN100454630C CNB2003101089584A CN200310108958A CN100454630C CN 100454630 C CN100454630 C CN 100454630C CN B2003101089584 A CNB2003101089584 A CN B2003101089584A CN 200310108958 A CN200310108958 A CN 200310108958A CN 100454630 C CN100454630 C CN 100454630C
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- CN
- China
- Prior art keywords
- hydrogen
- fuel cell
- air flow
- wedge
- air
- 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
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- 239000000446 fuel Substances 0.000 title claims abstract description 46
- 230000029058 respiratory gaseous exchange Effects 0.000 title abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 52
- 239000001257 hydrogen Substances 0.000 claims abstract description 52
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 11
- 239000010439 graphite Substances 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
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- Fuel Cell (AREA)
Abstract
The present invention relates to a low-pressure air breathing fuel cell stack which comprises bipolar plates, a membrane electrode, a current collecting plate, an electric insulating baffle plate, an air inlet, a hydrogen inlet, a hydrogen outlet, a hydrogen inlet pore channel, a hydrogen outlet pore channel, air flow channels, hydrogen flow channels, an air flow field, a hydrogen flow field, a fan, a fixing device and a heat radiating device, wherein the bipolar plates are in a wedge-shaped structure; two surfaces of each of the wedge-shaped bipolar plates are provided with the air flow channels and the hydrogen flow channels; the air flow channels are parallel to the cross section direction of the wedge-shaped bipolar plates; the hydrogen flow channels are arranged in the position perpendicular to the air flow channels; the hydrogen inlet and the hydrogen outlet are arranged on the electric insulating baffle plate; the wedge bipolar plates, the membrane electrode, the current collecting plate and the electric insulating baffle plate are assembled into a porous cylindrical cell stack with certain wall thickness; the cell stack is provided with the fan in the axial direction. Compared with the prior art, the present invention has the characteristics of compact structure, high power density, etc.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of low-pressure air and breathe fuel cell pack.
Background technology
The PEMFC fuel cell is a kind of H
2And O
2The chemical energy that reaction produces changes into the device of electric energy, and it has room temperature and starts transformation efficiency height, specific power density height, characteristics such as product zero pollution.Fuel cell applications is very wide, and large-scale fuel cell can be used as submarine, the power source of automobile etc.Small fuel cell can be used as battery-operated motor cycle, electric bicycle, and notebook computer, digital camera and other move the power supply of power consumption equipment.
The small fuel cell heap generally has bolt, and nut is parts such as two ends end plate.Small fuel cell fuel assembly power density that these parts senior general is low, same small fuel cell heap often adopts fan or equipment such as Small Centrifugal Fan or low-pressure air pump to provide air for fuel cell pack, these auxiliary devices structurally are difficult to be complementary with stack structure for fuel battery, thereby fuel battery assembled heap integrated level is not high thus, causes the reduction of entire cell system capacity density.Battery pile structure is reasonable, and is simple, and compactness is to improve very important aspect of compact battery shut-down system power density.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of fuel cell system structure compactness, low-pressure air that power density is high of making to breathe fuel cell pack in order to overcome the weak point that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of low-pressure air is breathed fuel cell pack, comprise bipolar plates, membrane electrode, collector plate, electric insulation baffle, the air inlet hole, hydrogen inlet and outlet, hydrogen enters the duct and goes out the duct, air flow channel, the hydrogen runner, air flow field, hydrogen flow field, fan, fixture, heat abstractor, described a plurality of air flow channel constitutes an air flow field, described a plurality of hydrogen runner constitutes a hydrogen flow field, described hydrogen inlet enters the duct and goes out hole link with hydrogen respectively with outlet, this hydrogen enters the duct and goes out the duct and hydrogen flow field is communicated with, it is characterized in that, described bipolar plates is wedge structure, two faces of this wedge dipole plate are provided with air flow channel and hydrogen runner, described air flow channel is parallel to the cross-sectional direction of wedge dipole plate, its groove depth by wedge shape varied in thickness rule from light to dark, the outer end of this wedge shape air flow channel is provided with the air inlet hole, described hydrogen runner is provided with this air flow channel is vertical, described hydrogen inlet and outlet are arranged on the electric insulation baffle, described a plurality of wedge dipole plate and membrane electrode add collector plate, electric insulation baffle is assembled into the perforated cylinder shape battery pile with certain wall thickness, and this battery pile is axially arranged with fan.
Described fixture comprises the annulus cover, and this annulus is set in the axial two ends of described perforated cylinder shape battery pile, and is fixed.
Described fixture comprises adhesive, and this adhesive is located at the two sides of wedge shape graphite bi-polar plate, membrane electrode, collector plate, electric insulation baffle, and its bonding compressed is assembled into the perforated cylinder shape battery pile with certain wall thickness.
Described heat abstractor comprises the heat radiation duct, and this heat radiation duct is located at the axial centre of wedge dipole plate.
Described heat abstractor comprises fin, and this fin is located at the outer end of bipolar plates.
Described heat abstractor comprises the wedge shape air flow channel, and this wedge shape air flow channel has heat sinking function concurrently.
Described fan comprises reaction fan and radiator fan, and described reaction fan is used air for battery pile provides reaction, and described radiator fan provides tempering air for battery pile.
Described bipolar plates adopts a kind of in high-strength graphite plate, metallic plate, die-pressed graphite plate, the flexible graphite plate.
Described wedge shape air flow channel, its bosom and the most shallow place ratio react with air-flow direction for to flow to shallow from the runner depths less than 50.
Described battery pile can be divided into several equal battery pack, carries out parallel connection by tube lead mode, to improve the output current of battery pile, reduces output voltage.
Compared with prior art, the invention provides a new technical solution, battery pile does not have end plate, bolt, fastening structures such as nut, battery pile is and has certain wall thickness perforated cylinder shape, bipolar plates is wedge structure, has hydrogen runner and air flow channel on two faces of wedge dipole plate, and wherein air flow channel is parallel to wedge shape section wedgewise and column distribution, hydrogen inlet and outlet are positioned on the electric insulation baffle, fan can be this battery pile reaction or heat transmission air is provided, and Circular fan is positioned on two end faces of this battery pile, can be good at coupling together with this structure, greatly reduce the fuel cell system volume, improved the fuel cell system power density.
Description of drawings
Fig. 1 is the end face structure schematic diagram of fuel cell pack;
Fig. 2 is the cylindric side structure schematic diagram of fuel cell pack;
Fig. 3 is a graphite bi-polar plate air surface structural representation;
Fig. 4 is a graphite bi-polar plate hydrogen face structural representation;
Fig. 5 is along A-A line cutting section structural representation;
Fig. 6 is battery pile and fan assembling trailing flank structural representation.
Fig. 7 for a kind of not with the heat radiation duct the fuel cell pack end view drawing;
Fig. 8 is fuel cell pack shown in Figure 7 and fan side view;
Fig. 9 is a kind of flange-cooled battery pile end view drawing;
Figure 10 for another kind of not with the fuel cell pack end view drawing in heat radiation duct.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments, the invention will be further described.
Shown in Fig. 1～6, a kind of low-pressure air is breathed fuel cell pack, comprise graphite bi-polar plate 1, membrane electrode 2, collector plate 3, electric insulation baffle 4, air inlet hole 6, hydrogen inlet 5 and outlet 5 ', hydrogen advance duct 8 with go out duct 8 ', air flow channel 9, air flow field 9 ', hydrogen runner 10, hydrogen flow field 10 ', reaction fan 14, radiator fan 15, annulus cover 7, heat radiation duct 11, described a plurality of air flow channel 9 formations one air flow field 9 ', described a plurality of hydrogen runner 10 formations one hydrogen flow field 10 ', described hydrogen inlet 5 enters duct 8 and goes out duct 8 ' be communicated with outlet 5 ' respectively and hydrogen, this hydrogen enters duct 8 and goes out duct 8 ' and hydrogen flow field 10 ' be communicated with, described bipolar plates 1 is wedge structure, 1 two faces of this wedge dipole plate are provided with air flow channel 9 and hydrogen runner 10, described air flow channel 9 is parallel to the cross-sectional direction of wedge dipole plate 1, its groove depth by wedge shape varied in thickness rule from light to dark, the outer end of this wedge shape air flow channel 9 is provided with air inlet hole 6, described hydrogen runner 10 and these air flow channel 9 vertical settings, described hydrogen inlet 5 and outlet 5 ' be arranged on the electric insulation baffle 4, described a plurality of wedge dipole plate 1 adds collector plate 3 with membrane electrode 2, electric insulation baffle 4 is assembled into the perforated cylinder shape battery pile with certain wall thickness, and this battery pile is axially arranged with reaction fan 14, radiator fan 15.Described annulus cover 7 is located at the axial two ends of described perforated cylinder shape battery pile, and is fixed.Described heat radiation duct 11 is located at the axial centre of wedge dipole plate.Described reaction is used air with fan 14 for battery pile provides reaction, and described radiator fan 15 provides tempering air for battery pile.Described wedge shape air flow channel 9, its bosom and the most shallow place ratio react with air-flow direction for to flow to shallow from the runner depths less than 50.
Present embodiment is a kind of fuel cell pack and bipolar plate structure with heat radiation air flow channel structure.The fastening of battery pile is by an annulus, do not have screw rod in the battery pile, nut, attached members such as two ends clamping plate.As can be seen from Figure 6, the end face of this fuel cell pack can form extraordinary cooperation with fan-shaped, this battery pile structure can dispose two function fans, fan outside dimension and end face excircle dimension are approaching, for the battery pile heat radiation provides cooling air, the circle size is close in fan outside dimension and the end face, for fuel cell provides the reaction air, wedge shape air flow channel structure helps keeping the hydro-thermal of battery electrode evenly to distribute, improved the electrode overall performance, this structure is particularly conducive to direct aerial respiration type fuel cell
Fig. 7 provided a kind of not with the heat radiation duct 11 the fuel cell pack end view drawing, Fig. 8 has provided a kind of fuel cell pack and fan side view of this structure, wedge shape air flow channel 9 in this structure has the reaction and the two kinds of functions of dispelling the heat, and 14 is the fan of two and battery pile inner core size match.All the other structures are identical with embodiment 1.
Fig. 9 has provided a kind of flange-cooled battery pile end view drawing, and 17 are depicted as the fuel cell fin among the figure, and heat transmission fan dimension size is suitable with the fin outside dimension in this battery pile.All the other structures are identical with embodiment 1.
Embodiment 4
Figure 10 provided a kind of not with the heat radiation duct the fuel cell pack end view drawing, three fuel battery are arranged in this battery pile, by shown in 16 the tube in two leads, conveniently realized the battery pack parallel connection.All the other structures are identical with embodiment 1.
Claims (10)
1. a low-pressure air is breathed fuel cell pack, comprise bipolar plates, membrane electrode, collector plate, electric insulation baffle, the air inlet hole, hydrogen inlet and outlet, hydrogen enters the duct and goes out the duct, air flow channel, the hydrogen runner, air flow field, hydrogen flow field, fan, fixture, heat abstractor, described a plurality of air flow channel constitutes an air flow field, described a plurality of hydrogen runner constitutes a hydrogen flow field, described hydrogen inlet enters the duct and goes out hole link with hydrogen respectively with outlet, this hydrogen enters the duct and goes out the duct and hydrogen flow field is communicated with, it is characterized in that, described bipolar plates is wedge structure, two faces of this wedge dipole plate are provided with air flow channel and hydrogen runner, described air flow channel is parallel to the cross-sectional direction of wedge dipole plate, its groove depth by wedge shape varied in thickness rule from light to dark, the outer end of this wedge shape air flow channel is provided with the air inlet hole, described hydrogen runner is provided with this air flow channel is vertical, described hydrogen inlet and outlet are arranged on the electric insulation baffle, a plurality of described wedge dipole plates and membrane electrode add collector plate, electric insulation baffle is assembled into the perforated cylinder shape battery pile with certain wall thickness, and this battery pile is axially arranged with fan.
2. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that described fixture comprises the annulus cover, and this annulus is set in the axial two ends of described perforated cylinder shape battery pile, and is fixed.
3. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that, described fixture comprises adhesive, this adhesive is located at the two sides of wedge shape graphite bi-polar plate, membrane electrode, collector plate, electric insulation baffle, and its bonding compressed is assembled into the perforated cylinder shape battery pile with certain wall thickness.
4. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that, described heat abstractor comprises the heat radiation duct, and this heat radiation duct is located at the axial centre of wedge dipole plate.
5. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that described heat abstractor comprises fin, and this fin is located at the outer end of bipolar plates.
6. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that described heat abstractor comprises the wedge shape air flow channel, and this wedge shape air flow channel has heat sinking function concurrently.
7. breathe fuel cell pack according to claim 1 or 4 or 5 or 6 described a kind of low-pressure airs, it is characterized in that, described fan comprises reaction fan and radiator fan, described reaction fan is used air for battery pile provides reaction, and described radiator fan provides tempering air for battery pile.
8. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that, described bipolar plates adopts a kind of in high-strength graphite plate, metallic plate, die-pressed graphite plate, the flexible graphite plate.
9. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that, described wedge shape air flow channel, its bosom and the most shallow place ratio react with air-flow direction for to flow to shallow from the runner depths less than 50.
10. a kind of low-pressure air according to claim 1 is breathed fuel cell pack, it is characterized in that described battery pile is divided into several equal battery pack, carries out parallel connection by tube lead mode, to improve the output current of battery pile, reduces output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101089584A CN100454630C (en) | 2003-11-28 | 2003-11-28 | Low-pressure air breathing fuel cell pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101089584A CN100454630C (en) | 2003-11-28 | 2003-11-28 | Low-pressure air breathing fuel cell pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1622375A CN1622375A (en) | 2005-06-01 |
| CN100454630C true CN100454630C (en) | 2009-01-21 |
Family
ID=34758787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101089584A Expired - Lifetime CN100454630C (en) | 2003-11-28 | 2003-11-28 | Low-pressure air breathing fuel cell pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100454630C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429819C (en) * | 2005-08-16 | 2008-10-29 | 比亚迪股份有限公司 | Fuel cell stack |
| CN100429820C (en) * | 2005-08-16 | 2008-10-29 | 比亚迪股份有限公司 | Fuel cell stack |
| JP4950505B2 (en) * | 2006-02-13 | 2012-06-13 | キヤノン株式会社 | Fuel cell stack |
| CN101064369B (en) * | 2006-04-26 | 2010-10-27 | 上海攀业氢能源科技有限公司 | Non-end plate fuel cell stack fit for low-temperature starting |
| CN110752342A (en) * | 2018-07-24 | 2020-02-04 | 株式会社Mplus | Battery pole plate fixing structure and pole plate fixing method |
| CN113471476A (en) * | 2021-06-09 | 2021-10-01 | 电子科技大学 | Fuel cell power generation module and application thereof |
| CN113451600A (en) * | 2021-06-18 | 2021-09-28 | 深圳职业技术学院 | Annular cathode open type air-cooled fuel cell with embedded air duct |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002065565A2 (en) * | 2001-02-12 | 2002-08-22 | The Morgan Crucible Company Plc | Flow field plate geometries |
| CN2514499Y (en) * | 2001-12-26 | 2002-10-02 | 天津大学 | Double polar plate for directly connecting methanol fuel cell to promote methanol utilization |
| CN2664205Y (en) * | 2003-11-28 | 2004-12-15 | 上海河森电气有限公司 | A low-pressure air breathing fuel cell pile |
-
2003
- 2003-11-28 CN CNB2003101089584A patent/CN100454630C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002065565A2 (en) * | 2001-02-12 | 2002-08-22 | The Morgan Crucible Company Plc | Flow field plate geometries |
| CN2514499Y (en) * | 2001-12-26 | 2002-10-02 | 天津大学 | Double polar plate for directly connecting methanol fuel cell to promote methanol utilization |
| CN2664205Y (en) * | 2003-11-28 | 2004-12-15 | 上海河森电气有限公司 | A low-pressure air breathing fuel cell pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1622375A (en) | 2005-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20061027 Address after: Room 1671, 705 triumphal road, Shanghai Applicant after: Tian Binglun Address before: Room 1671, 705 triumphal road, Shanghai Applicant before: SHANGHAI HESEN ELECTRIC Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI PEARL HYDROGEN POWER SOURCE TECHNOLOGY CO Free format text: FORMER OWNER: TIAN BINGLUN Effective date: 20100304 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200030 ROOM 705, NO.1671, KAIXUAN ROAD, SHANGHAI CITY TO: 201401 ROOM 218, NO.886, YUANDONG ROAD, COMPREHENSIVE INDUSTRIAL DEVELOPMENT ZONE, SHANGHAI CITY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100304 Address after: 201401 No. 218, No. 886, Far East Road, Shanghai Industrial Development Zone Patentee after: Shanghai Panye Hydrogen Energy Technology Co.,Ltd. Address before: 200030, 1671 triumph Road, Shanghai, room 705 Patentee before: Tian Binglun |
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| CX01 | Expiry of patent term |
Granted publication date: 20090121 |
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| CX01 | Expiry of patent term |