CN107195923A - A kind of high-efficiency fuel cell flow-guide double-pole plate - Google Patents
A kind of high-efficiency fuel cell flow-guide double-pole plate Download PDFInfo
- Publication number
- CN107195923A CN107195923A CN201710365568.7A CN201710365568A CN107195923A CN 107195923 A CN107195923 A CN 107195923A CN 201710365568 A CN201710365568 A CN 201710365568A CN 107195923 A CN107195923 A CN 107195923A
- Authority
- CN
- China
- Prior art keywords
- graphite
- fuel cell
- colloid
- pole plate
- cell flow
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- 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
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
- H01M4/8631—Bipolar electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
High-efficiency fuel cell flow-guide double-pole plate disclosed by the invention, combined by airflow guiding plate with hydrogen flow guiding plate, bonded and formed by adhesive between the two, it is characterized in that, the adhesive is made up of colloid with graphite, mass percent between the colloid and graphite is 7~14wt%: 86~93%, and the graphite is spectroscopically pure graphite powder or powder graphite.The advantage that bond effect of the present invention is good, bipolar plates conduct electricity very well.
Description
Technical field
The present invention relates to field of fuel cell technology, more particularly to a kind of high-efficiency fuel cell flow-guide double-pole plate
Background technology
Fuel battery flow guiding bipolar plates are typically combined by two blocks of plates.This two pieces of plate functions be respectively lead air groove face,
Lead to constitute between two blocks of plates after hydrogen groove face, and combination and lead cooling fluid.For example：The chuck tabula rasa face of cooling fluid and conduction cooling
But the groove face of fluid, and (air enters six pod apertures, air goes out；Hydrogen enters, hydrogen goes out；Cooling fluid is entered, cooling fluid
Go out) composition, it is tabula rasa face so to lead air groove face, reverse side by one piece of front, and leads hydrogen groove face by one piece of front, and reverse side is light
Plate face；And air groove face is led by one piece of front, reverse side is that but two blocks of plates of fluid groove face constitute one piece of bipolar plates to conduction cooling.It is this bipolar
The characteristics of plate：(1) combined by two blocks of plates；It is to lead cooling fluid in the middle of (2) two blocks of plates.Such combination bipolar plates have following
Technological deficiency：
1. one piece is tabula rasa face in two blocks of plates, but one piece corresponding with tabula rasa face must have seal groove, and place sealing
Cooling fluid flowing, can be limited in cooling splint groove, cooling fluid not channelling is arrived air, hydrogen duct by circle after combination
It is interior, also not to leakage outside fuel cell pack.This sealing difficulty is larger, the design and manufacture of increase material fuel cell engineering
Difficulty.
2. two blocks of plates are combined into the technology of bipolar plates, it is necessary to assure the mechanical strength of every block of plate, that is to say, that must assure that
The thickness of every block of plate, the thinned difficulty of the so serious thickness for adding monoblock bipolar plates, make the weight of fuel cell pack with
Volumetric specific power being restricted seriously.
The current technology of European patent EP 1009051, this two pieces of pole plates progress are gluing, above-mentioned skill can be so overcome substantially
Art defect.But the patent must use conducting resinl, and two pieces of plate whole surfaces of combination are uniformly coated with into conducting resinl, and certain
Temperature makes one piece of bipolar plates with being glued under pressure, the defect of this technology be the conducting resinl of high conductivity often
After adhesive effect is not good, and the conducting resinl of low conductivity is coated on the corresponding surface of two pieces of combinations, bipolar plates can be had a strong impact on
Conducting function, cause fuel cell pack internal resistance very big；In addition, the even spread technology of conducting resinl also has certain difficulty.
Therefore, Chinese patent Authorization Notice No. CN100356618C disclose a kind of high-efficiency fuel cell flow-guide double-pole plate and
Its manufacture method, the bipolar plates are combined by airflow guiding plate with hydrogen flow guiding plate, and the conduction cooling of airflow guiding plate reverse side but flows
Body groove or smooth surface are surrounded by shallow and wide type seal groove, the conduction cooling of hydrogen flow guiding plate reverse side but fluid slot or smooth surface be surrounded by with it is upper
State and adhesive is provided with the corresponding shallow and wide type seal groove of airflow guiding plate reverse side, shallow and wide type seal groove, airflow guiding plate is with leading hydrogen
After airflow plate pressing, adhesive is full of between seal groove, two blocks of plates for zero clearance laminating just.It uses adhesive for epoxy
One kind in glue, silicone sealant, solid band of glue.Such way, can be tight when zero clearance laminating is unable between two blocks of plates
Ghost image rings the conducting function of bipolar plates.
The content of the invention
Present invention aims at being provided for the deficiency present in above-mentioned prior art, a kind of bond effect is good, bipolar plates
The high-efficiency fuel cell flow-guide double-pole plate conducted electricity very well.
In order to realize foregoing invention purpose, the technical solution adopted in the present invention is as follows：
As the high-efficiency fuel cell flow-guide double-pole plate of first aspect present invention, by airflow guiding plate and hydrogen flow guiding plate group
Conjunction is formed, and is bonded form by adhesive between the two, wherein the adhesive is made up of colloid with graphite, the colloid and stone
Mass percent between ink is 7~14wt%: 86~93%, and the graphite is spectroscopically pure graphite powder or powder graphite.
In a preferred embodiment of the invention, the colloid is formulated by epoxy resin and curing agent.
In a preferred embodiment of the invention, the epoxy resin is selected from E-44 epoxy resin, and the curing agent is
650 polyamide curing agents or phthalic anhydride.
As a result of technical scheme as above, the advantage that bond effect of the present invention is good, bipolar plates conduct electricity very well.
Embodiment
Embodiment 1
High-efficiency fuel cell flow-guide double-pole plate, is combined with hydrogen flow guiding plate by airflow guiding plate, passed through between the two
Adhesive is bonded and formed, wherein the adhesive is made up of colloid with graphite particulate, the matter between the colloid and graphite particulate
It is 7%: 93% to measure percentage, and graphite is spectroscopically pure graphite powder.
Colloid is formulated by epoxy resin and curing agent, and epoxy resin is selected from E-44 epoxy resin, and curing agent is 650 poly-
Amide hardener.
Embodiment 2
High-efficiency fuel cell flow-guide double-pole plate, is combined with hydrogen flow guiding plate by airflow guiding plate, passed through between the two
Adhesive is bonded and formed, wherein the adhesive is made up of colloid with graphite particulate, the matter between the colloid and graphite particulate
It is 10%: 90% to measure percentage, and graphite is powder graphite.
Colloid is formulated by epoxy resin and curing agent, and epoxy resin is selected from E-44 epoxy resin, and curing agent is adjacent benzene
Dicarboxylic acid anhydride.
Embodiment 3
High-efficiency fuel cell flow-guide double-pole plate, is combined with hydrogen flow guiding plate by airflow guiding plate, passed through between the two
Adhesive is bonded and formed, wherein the adhesive is made up of colloid with graphite particulate, the matter between the colloid and graphite particulate
It is 14%: 86% to measure percentage, and graphite is spectroscopically pure graphite powder.
Colloid is formulated by epoxy resin and curing agent, and epoxy resin is selected from E-44 epoxy resin, and curing agent is adjacent benzene
Dicarboxylic acid anhydride.
Claims (3)
1. high-efficiency fuel cell flow-guide double-pole plate, is combined with hydrogen flow guiding plate by airflow guiding plate, passes through glue between the two
Glutinous agent, which is bonded, to be formed, it is characterised in that the adhesive is made up of colloid with graphite, the quality hundred between the colloid and graphite
Divide than being 7~14wt%: 86~93%, the graphite is spectroscopically pure graphite powder or powder graphite.
2. high-efficiency fuel cell flow-guide double-pole plate as claimed in claim 1, it is characterised in that the colloid by epoxy resin and
Curing agent is formulated.
3. high-efficiency fuel cell flow-guide double-pole plate as claimed in claim 2, it is characterised in that the epoxy resin is selected from E-44
Epoxy resin, the curing agent is 650 polyamide curing agents or phthalic anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365568.7A CN107195923A (en) | 2017-05-22 | 2017-05-22 | A kind of high-efficiency fuel cell flow-guide double-pole plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365568.7A CN107195923A (en) | 2017-05-22 | 2017-05-22 | A kind of high-efficiency fuel cell flow-guide double-pole plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107195923A true CN107195923A (en) | 2017-09-22 |
Family
ID=59874900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365568.7A Pending CN107195923A (en) | 2017-05-22 | 2017-05-22 | A kind of high-efficiency fuel cell flow-guide double-pole plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107195923A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553532A (en) * | 2003-06-04 | 2004-12-08 | 上海神力科技有限公司 | High-efficient fuel battery guide bipolar plates and producing method thereof |
| CN101851479A (en) * | 2010-05-17 | 2010-10-06 | 山东大学 | Application of graphite conductive adhesive to prepare electrode-detection binder |
| CN102569825A (en) * | 2012-02-18 | 2012-07-11 | 沈阳飞机工业（集团）有限公司 | Conductive plastic composite electrode and manufacture method therefor |
-
2017
- 2017-05-22 CN CN201710365568.7A patent/CN107195923A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553532A (en) * | 2003-06-04 | 2004-12-08 | 上海神力科技有限公司 | High-efficient fuel battery guide bipolar plates and producing method thereof |
| CN101851479A (en) * | 2010-05-17 | 2010-10-06 | 山东大学 | Application of graphite conductive adhesive to prepare electrode-detection binder |
| CN102569825A (en) * | 2012-02-18 | 2012-07-11 | 沈阳飞机工业（集团）有限公司 | Conductive plastic composite electrode and manufacture method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |