CN108336372A - A kind of bipolar plate for fuel cell sealing technology - Google Patents
A kind of bipolar plate for fuel cell sealing technology Download PDFInfo
- Publication number
- CN108336372A CN108336372A CN201711468252.7A CN201711468252A CN108336372A CN 108336372 A CN108336372 A CN 108336372A CN 201711468252 A CN201711468252 A CN 201711468252A CN 108336372 A CN108336372 A CN 108336372A
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- China
- Prior art keywords
- plate
- fuel cell
- cell sealing
- sealing technology
- bipolar plate
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- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to a kind of bipolar plate for fuel cell sealing technologies, and a circle excessive glue groove is respectively processed in fuel battery negative pole plate coolant liquid flow field periphery and outer profile；Conducting resinl is coated on the surface of the smooth surface of anode plate；The surface of cathode plate and the anode plate coated with conducting resinl is fitted and is positioned in limiting tool, limiting tool is put into hot-press solidifying in hot press, completes to be tightly connected.Compared with prior art, the present invention has the advantages that avoid excessive glue, and processing technology is simple, at low cost, can realize mass production, and condition is created for the development and application of fuel cell.
Description
Technical field
The present invention relates to a kind of fuel cell modules, more particularly, to a kind of bipolar plate for fuel cell sealing technology.
Background technology
Fuel cell, which is one kind, having many advantages, such as that operating temperature is low, specific power is big, it is rapid to start, and has become new energy neck
One of the hot spot of domain research.The critical component of fuel cell is membrane electrode (MEA) and bipolar plates.Bipolar plate assembly includes anode stream
Field plate and cathode flow field plate, they are combined together and are suitably sealed in the coolant flow for forming sealing between cathode and anode plate
, therefore generally use in the art.Various transition passages, port, pipeline and be related to all three operation fluid (such as
Fuel, oxidant and coolant) other characteristics may also appear in the inactive sides of these plates.Fluid is operated in certain pressure
Under, all characteristics in plate all must be sealed suitably, to prevent the leakage between fluid and external environment.Bipolar plate assembly it is another
One requires to be to have good electric conductivity between two pole plates.This is because a large amount of electric currents that fuel cell pack generates must be through
It crosses between two pole plates.The plate for forming the component can be metal, and in this case, they are generally welded together, with
Suitably seal all fluid channels each other with external environment.Metallic plate can also be sealed with adhesive bonding.Group
Plate at the component can also be carbonaceous (such as：Graphite cake), this plate is through commonly using glue sealing.Bipolar plate assembly uses energy
It is prepared by the adhesive for enough bearing fuel cell environment.Typically epobond epoxyn, and by silk-screen printing or other
Mode seals off each required fluid cavity.Usual this adhesive has to pass through heat cure processing, uses this adhesive
There is Railway Project.For example, the operable time of adhesive is short, so equipment in use must be periodically clear with strong solvent
It washes, to prevent adhesive from curing in equipment.In addition, heat cure can be related to very long, energy-intensive thermal cycle.It is other
Curing is problematic.For example, UV solidifications are relatively difficult, because adhint is invisible.Anaerobic adhesive is by fuel cell itself
Limit that (typical adhesive resin needs metal ion to start solidification, but this ion is not required in a fuel cell
It wants).Moreover, fixing device usually requires that tablet is precisely aligned, squeezed and kept in cure cycle.In this way
Device must be remained dimensionally-stable in multiple thermal cycles.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of combustions avoiding excessive glue
Expect battery bipolar plates sealing technology, the processing technology of the bipolar plates is simple, at low cost, can realize mass production, for combustion
The development and application for expecting battery create condition.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of bipolar plate for fuel cell sealing technology, using following steps：
(1) in fuel battery negative pole plate coolant liquid flow field periphery and outer profile, respectively excessive glue groove is enclosed in processing one；
(2) conducting resinl is coated on the surface of the smooth surface of anode plate；
(3) surface of cathode plate and the anode plate coated with conducting resinl is fitted and is positioned in limiting tool, limit work
Hot-press solidifying in hot press is put, completes to be tightly connected.
Conducting resinl is coated using screen printing apparatus.
The Printing screen used is the terylene silk net that mesh number is 120~200 mesh.
The glued area of the Printing screen is retracted 1mm than the outer profile of cathode-anode plate, and the gluing thickness of conducting resinl is
0.01-0.05mm。
The temperature of hot-press solidifying is 120~180 DEG C, and pressure is 0.1~1Mpa, and the time is 30~90min.
Compared with prior art, the present invention has the following advantages：
1, bipolar plates are integrally bonded using conducting resinl, the resistance of bipolar plates becomes smaller, and Performance data improves, and coolant liquid can be used
Pressure is high, and pile temperature control is accurate rapidly.
2, it using excessive glue groove, avoids conducting resinl from blocking coolant flow field, keeps bipolar plates Temperature Distribution more uniform.
3, using excessive glue groove glue without excessive, bipolar plates appearance is neatly beautiful.
Description of the drawings
Fig. 1 is the structural schematic diagram of the anode plate and cathode plate of processing；
Fig. 2 is the structural schematic diagram of the bipolar plates after fitting.
In figure, 1 be conducting resinl, 2 be the first excessive glue groove, 3 be the second excessive glue groove, 4 be coolant liquid flow field, 5 be fuel flow field,
6 it is oxidant flow field, 7 be anode plate, 8 is cathode plate.
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
The glued area of web plate is made according to the shape of bipolar plates, web plate glued area is retracted 1mm than bipolar plates outer profile,
The other region entirety gluing of pole plate.Web plate is made using 150 mesh terylene grenadines, block uses oiliness photoresists.The net made
Plate is fixed on screen printing apparatus, and using the method for silk-screen printing, after the completion of gluing, cathode-anode plate pairing is positioned over limit
In tooling, limiting tool is put into hot-press solidifying in hot press, and hot press temperature is 150 degree, pressure 0.7MPa, hardening time
30min, cooling, bipolar plates, which bond, to be completed.
Embodiment 2
A kind of bipolar plate for fuel cell sealing technology, using following steps：
(1) in anodes for fuel cells plate 7 there is the periphery in coolant liquid flow field 4 and outer profile to process a circle second respectively to overflow
Glue groove 3 and the first excessive glue groove 2 also have oxidant flow field 6 on anode plate 7；
(2) conducting resinl 1 being coated on the surface of the smooth surface of cathode plate 8, the other side is fuel flow field 5, as shown in Figure 1, using
Screen printing apparatus coats conducting resinl, and the Printing screen used is the terylene silk net that mesh number is 120 mesh, the gluing area of Printing screen
Domain is retracted 1mm than the outer profile of cathode-anode plate, and the gluing thickness of conducting resinl is 0.01mm；
(3) surface of anode plate and the cathode plate coated with conducting resinl is fitted and is positioned in limiting tool, limit work
Hot-press solidifying in hot press is put, the temperature for controlling hot-press solidifying is 120 DEG C, pressure 0.1Mpa, time 90min, complete
At sealed connection, the bipolar plates of formation are as shown in Figure 2.
Embodiment 3
A kind of bipolar plate for fuel cell sealing technology, using following steps：
(1) in anodes for fuel cells plate 7 there is the periphery in coolant liquid flow field 4 and outer profile to process a circle second respectively to overflow
Glue groove 3 and the first excessive glue groove 2 also have oxidant flow field 6 on anode plate 7；
(2) conducting resinl 1 being coated on the surface of the smooth surface of cathode plate 8, the other side is fuel flow field 5, as shown in Figure 1, using
Screen printing apparatus coats conducting resinl, and the Printing screen used is the terylene silk net that mesh number is 200 mesh, the gluing area of Printing screen
Domain is retracted 1mm than the outer profile of cathode-anode plate, and the gluing thickness of conducting resinl is 0.05mm；
(3) surface of anode plate and the cathode plate coated with conducting resinl is fitted and is positioned in limiting tool, limit work
Hot-press solidifying in hot press is put, the temperature for controlling hot-press solidifying is 120 DEG C, pressure 1Mpa, time 30min, is completed
It is tightly connected.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of bipolar plate for fuel cell sealing technology, which is characterized in that the technique uses following steps：
(1) in fuel battery negative pole plate coolant liquid flow field periphery and outer profile, respectively excessive glue groove is enclosed in processing one；
(2) conducting resinl is coated on the surface of the smooth surface of anode plate；
(3) surface of cathode plate and the anode plate coated with conducting resinl is fitted and is positioned in limiting tool, limiting tool is put
Enter hot-press solidifying in hot press, completes to be tightly connected.
2. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that use silk-screen printing
Equipment coats conducting resinl.
3. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that the printing net of use
Plate is the terylene silk net that mesh number is 120~200 mesh.
4. a kind of bipolar plate for fuel cell sealing technology according to claim 3, which is characterized in that the printing net
The glued area of plate is retracted 1mm than the outer profile of anode plate.
5. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that the gluing of conducting resinl
Thickness is 0.01-0.05mm.
6. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that the temperature of hot-press solidifying
Degree is 120~180 DEG C.
7. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that the pressure of hot-press solidifying
Power is 0.1~1MPa.
8. a kind of bipolar plate for fuel cell sealing technology according to claim 1, which is characterized in that hot-press solidifying when
Between be 30~90min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468252.7A CN108336372A (en) | 2017-12-29 | 2017-12-29 | A kind of bipolar plate for fuel cell sealing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468252.7A CN108336372A (en) | 2017-12-29 | 2017-12-29 | A kind of bipolar plate for fuel cell sealing technology |
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| Publication Number | Publication Date |
|---|---|
| CN108336372A true CN108336372A (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711468252.7A Pending CN108336372A (en) | 2017-12-29 | 2017-12-29 | A kind of bipolar plate for fuel cell sealing technology |
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| CN (1) | CN108336372A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286023A (en) * | 2018-09-27 | 2019-01-29 | 深圳市南科燃料电池有限公司 | A kind of bipolar plates and its viscose assemble method |
| CN109560221A (en) * | 2018-12-03 | 2019-04-02 | 桑顿新能源科技有限公司 | The method for improving soft-package battery aluminum plastic film package reliability |
| CN113314725A (en) * | 2021-07-30 | 2021-08-27 | 武汉众宇动力系统科技有限公司 | Fuel cell bipolar plate and bonding method thereof |
| CN114530611A (en) * | 2022-02-16 | 2022-05-24 | 安徽瑞氢动力科技有限公司 | Method for dispensing and bonding cooling circuit of bipolar plate of fuel cell |
| CN114566670A (en) * | 2022-03-01 | 2022-05-31 | 深圳市氢瑞燃料电池科技有限公司 | Integrated fuel cell metal bipolar plate and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1009051A2 (en) * | 1998-12-08 | 2000-06-14 | General Motors Corporation | Liquid cooled bipolar plate consisting of glued plates for PEM fuel cells |
| CN2624412Y (en) * | 2003-06-04 | 2004-07-07 | 上海神力科技有限公司 | A diverting double polar plate for highly effective fuel battery |
| CN1808748A (en) * | 2006-02-15 | 2006-07-26 | 南京博能燃料电池有限责任公司 | Preparation method of dual electrode plates of fuel cell |
| CN201689935U (en) * | 2010-04-15 | 2010-12-29 | 昆山弗尔赛能源有限公司 | Bipolar plate for fuel battery with composite sealing structure |
| US20130089809A1 (en) * | 2011-10-10 | 2013-04-11 | Ford Motor Company | Assembling bipolar plates for fuel cells using microencapsulated adhesives |
| CN205429071U (en) * | 2015-12-10 | 2016-08-03 | 上海神力科技有限公司 | Soft rock china ink bipolar plate's continuous production assembly line for fuel cell |
| CN106393940A (en) * | 2016-08-30 | 2017-02-15 | 武汉喜玛拉雅光电科技股份有限公司 | Bipolar plate bonding method for PEM (proton exchange membrane) fuel cells |
-
2017
- 2017-12-29 CN CN201711468252.7A patent/CN108336372A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1009051A2 (en) * | 1998-12-08 | 2000-06-14 | General Motors Corporation | Liquid cooled bipolar plate consisting of glued plates for PEM fuel cells |
| CN2624412Y (en) * | 2003-06-04 | 2004-07-07 | 上海神力科技有限公司 | A diverting double polar plate for highly effective fuel battery |
| CN1808748A (en) * | 2006-02-15 | 2006-07-26 | 南京博能燃料电池有限责任公司 | Preparation method of dual electrode plates of fuel cell |
| CN201689935U (en) * | 2010-04-15 | 2010-12-29 | 昆山弗尔赛能源有限公司 | Bipolar plate for fuel battery with composite sealing structure |
| US20130089809A1 (en) * | 2011-10-10 | 2013-04-11 | Ford Motor Company | Assembling bipolar plates for fuel cells using microencapsulated adhesives |
| CN205429071U (en) * | 2015-12-10 | 2016-08-03 | 上海神力科技有限公司 | Soft rock china ink bipolar plate's continuous production assembly line for fuel cell |
| CN106393940A (en) * | 2016-08-30 | 2017-02-15 | 武汉喜玛拉雅光电科技股份有限公司 | Bipolar plate bonding method for PEM (proton exchange membrane) fuel cells |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286023A (en) * | 2018-09-27 | 2019-01-29 | 深圳市南科燃料电池有限公司 | A kind of bipolar plates and its viscose assemble method |
| CN109560221A (en) * | 2018-12-03 | 2019-04-02 | 桑顿新能源科技有限公司 | The method for improving soft-package battery aluminum plastic film package reliability |
| CN109560221B (en) * | 2018-12-03 | 2022-07-15 | 桑顿新能源科技有限公司 | Method for improving packaging reliability of aluminum plastic film of soft package battery |
| CN113314725A (en) * | 2021-07-30 | 2021-08-27 | 武汉众宇动力系统科技有限公司 | Fuel cell bipolar plate and bonding method thereof |
| CN114530611A (en) * | 2022-02-16 | 2022-05-24 | 安徽瑞氢动力科技有限公司 | Method for dispensing and bonding cooling circuit of bipolar plate of fuel cell |
| CN114566670A (en) * | 2022-03-01 | 2022-05-31 | 深圳市氢瑞燃料电池科技有限公司 | Integrated fuel cell metal bipolar plate and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180727 |
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| RJ01 | Rejection of invention patent application after publication |