CN114853929A - Bipolar plate resin composition, preparation method, bipolar plate, fuel cell and vehicle - Google Patents
Bipolar plate resin composition, preparation method, bipolar plate, fuel cell and vehicle Download PDFInfo
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- CN114853929A CN114853929A CN202110146862.5A CN202110146862A CN114853929A CN 114853929 A CN114853929 A CN 114853929A CN 202110146862 A CN202110146862 A CN 202110146862A CN 114853929 A CN114853929 A CN 114853929A
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- Prior art keywords
- bipolar plate
- resin
- resin composition
- fuel cell
- vinyl resin
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- 239000011342 resin composition Substances 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 48
- 239000011347 resin Substances 0.000 claims abstract description 48
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 32
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 30
- 239000010439 graphite Substances 0.000 claims abstract description 30
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000411 inducer Substances 0.000 claims abstract description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical group N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 21
- 239000004593 Epoxy Substances 0.000 claims description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 8
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000005470 impregnation Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 10
- 239000004925 Acrylic resin Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/02—Ethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/04—Monomers containing three or four carbon atoms
-
- 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
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0221—Organic resins; Organic polymers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of fuel cells, in particular to a bipolar plate resin composition, a preparation method, a bipolar plate, a fuel cell and a vehicle, wherein the bipolar plate resin composition comprises 3-30% of vinyl resin, 70-97% of styrene and 0.1-1% of an inducer; the bending strength of the bipolar plate obtained by the bipolar plate resin composition and the expanded graphite plate can reach 50MPa, the compressive strength can reach 80MPa, and the mechanical property of the expanded graphite plate is greatly improved; styrene is selected as a viscosity regulator of the vinyl resin, so that the viscosity of the resin can be regulated to 15mPa.s, and the resin is greatly suitable for graphite impregnation; the vinyl resin has the advantages of excellent bending strength and compressive strength, high temperature resistance and good corrosion resistance.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a bipolar plate resin composition, a preparation method, a bipolar plate, a fuel cell and a vehicle.
Background
The fuel cell efficiently converts chemical energy stored in fuel (such as hydrogen, methanol and the like) into electric energy, and is a carbon-emission-free and environment-friendly power generation mode. The power generation principle is that electrochemical reaction occurs in the fuel cell, which divides an oxidation-reduction reaction into two half reactions of oxidation of fuel (such as hydrogen) and reduction of oxidant (such as oxygen), the middle is separated by an electrolyte membrane, ions migrate in the electrolyte membrane, and electrons do work through an external circuit. Fuel cells have components such as bipolar plates, gas diffusion layers, and catalyst layers in addition to electrolyte membranes.
Currently, the electrode plate materials used in fuel cells mainly include graphite, metal, and expanded graphite.
Graphite is the earliest material applied to the fuel cell bipolar plate, and the graphite bipolar plate has the advantages of good corrosion resistance, good affinity with a carbon fiber diffusion layer and the like, and can meet the requirement of long-term stable operation of the fuel cell. However, graphite has a large porosity, a low mechanical strength, and a large brittleness. In addition, the graphite plate is machined by a traditional machine, so that the process is complicated, the cost is high, and the batch production is not facilitated. The bipolar plate prepared from metals (aluminum, titanium, nickel and stainless steel) and alloys thereof (aluminum alloy, titanium alloy and the like) overcomes the defect of brittleness of a graphite plate, is suitable for batch production, and mainly has the defects of poor corrosion resistance, large contact resistance with an electrode diffusion layer and increased cost due to surface treatment.
After the expanded graphite pole plate is molded into a shape with a certain flow field, the expanded graphite pole plate needs to be put into liquid thermosetting resin for impregnation, and then the resin enters the solidification of the resin in the pores of the expanded graphite pole plate, so that the strength of the flexible graphite pole plate is improved, and the air tightness of the expanded graphite pole plate is also improved.
The impregnating resin mainly applied to the existing expanded graphite pole plate is thermosetting resin such as polyimide resin, acrylic resin, phenolic resin or epoxy resin; these resins such as phenolic resins and epoxy resins have the disadvantage of having too high a viscosity and inadequate gas impermeability of the impregnated expanded graphite sheet, whereas the low viscosity acrylic resin impregnated expanded graphite sheet has good gas impermeability but low strength.
For example, patent CN201910257160.7 discloses steps in a method for preparing a fuel cell bipolar plate by die pressing:
the resin adopted in the patent is polyimide resin, acrylic resin, phenolic resin or epoxy resin.
Present expanded graphite board flooding often uses acrylic resin, and this resin has viscosity low, and the effectual advantage of flooding mixes acrylic resin and a certain amount of azo-bis isobutyronitrile during the use, then the bending strength of graphite plate that the flooding was come out is 15 ~ 30MPa usually, and compressive strength is at 40 ~ 50MPa, and no matter bending strength or compressive strength are all lower, influence the structural design of polar plate, also can't further prepare the thinner expanded graphite bipolar plate of thickness simultaneously.
The strength of the expanded graphite pole plate after being impregnated depends on the selected resin to a great extent, so that the vinyl resin with more excellent performance is selected to impregnate the expanded graphite pole plate, and a product with better performance can be obtained.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a bipolar plate resin composition which has better bending strength and compressive strength, resists high temperature and corrosion and is more suitable for industrial production, a preparation method, a bipolar plate, a fuel cell and a vehicle
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
a resin composition for bipolar plate contains vinyl resin (3-30%), styrene (70-97%) and inducer (0.1-1%).
Preferably, the vinyl resin is a standard bisphenol a epoxy vinyl resin, synthesized by reacting methacrylic acid with a bisphenol a epoxy resin.
As can be seen from the above description, bisphenol a epoxy vinyl resin synthesized by reacting methacrylic acid with bisphenol a epoxy resin can be easily dissolved in styrene solution. The resin has extremely active double bonds at two ends of a molecular chain, so that the vinyl resin can be quickly cured, the use strength is quickly obtained, and the polymer with high corrosion resistance is obtained.
Preferably, the inducer is azobisisobutyronitrile.
In order to solve the above technical problem, the second technical solution adopted by the present invention is:
a method for preparing a bipolar plate resin composition comprises
Adding a certain amount of styrene into the vinyl resin to reduce the viscosity of the resin system to 15 mPa.s;
adding a certain amount of azobisisobutyronitrile into the system, and uniformly stirring to obtain the resin composition.
Preferably, the obtained resin composition is stored in a low-temperature storage tank.
In order to solve the above technical problems, the third technical solution adopted by the present invention is:
a bipolar plate is obtained by impregnating an expanded graphite sheet with the above resin composition and then curing the impregnated sheet.
In order to solve the above technical problem, a fourth technical solution adopted by the present invention is:
a fuel cell comprises the bipolar plate.
In order to solve the above technical problems, a fifth technical solution adopted by the present invention is:
a vehicle includes the fuel cell.
The invention has the beneficial effects that: the bipolar plate (expanded graphite plate) obtained by the bipolar plate resin composition and the expanded graphite plate has the bending strength of 50MPa and the compressive strength of 80MPa, and greatly improves the mechanical property of the expanded graphite plate. Styrene is selected as a viscosity regulator of the vinyl resin, so that the viscosity of the resin can be regulated to 15mPa.s, and the preparation method is greatly suitable for graphite impregnation. The vinyl resin has the advantages of excellent bending strength and compressive strength, high temperature resistance and good corrosion resistance.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.
Example one
A resin composition for bipolar plate comprises 3% of vinyl resin, 96.9% of styrene and 0.1% of azobisisobutyronitrile.
The vinyl resin is standard bisphenol A epoxy vinyl resin and is synthesized by reacting methacrylic acid with bisphenol A epoxy resin.
Example two
A resin composition for bipolar plates comprises 30% of vinyl resin, 69% of styrene and 1% of azobisisobutyronitrile.
The vinyl resin is standard bisphenol A epoxy vinyl resin and is synthesized by reacting methacrylic acid with bisphenol A epoxy resin.
EXAMPLE III
A resin composition for bipolar plate is prepared from vinyl resin (17%), styrene (82.5%) and azobisisobutyronitrile (0.5%).
The vinyl resin is standard bisphenol A epoxy vinyl resin and is synthesized by reacting methacrylic acid with bisphenol A epoxy resin.
Example four
A resin composition for bipolar plate comprises 10% of vinyl resin, 89.7% of styrene and 0.3% of azobisisobutyronitrile.
The vinyl resin is standard bisphenol A epoxy vinyl resin and is synthesized by reacting methacrylic acid with bisphenol A epoxy resin.
EXAMPLE five
A resin composition for bipolar plate comprises 23% of vinyl resin, 76.3% of styrene and 0.7% of azobisisobutyronitrile.
The vinyl resin is standard bisphenol A epoxy vinyl resin and is synthesized by reacting methacrylic acid with bisphenol A epoxy resin.
EXAMPLE six
A method for preparing a bipolar plate resin composition comprises
Adding a certain amount of styrene into the vinyl resin to reduce the viscosity of the resin system to 15 mPa.s;
adding a certain amount of azodiisobutyronitrile into the system, and uniformly stirring to obtain a resin composition;
the obtained resin composition was stored in a low-temperature storage tank.
EXAMPLE seven
A bipolar plate obtained by impregnating an expanded graphite sheet with the resin composition of any one of examples one to five and then curing the impregnated sheet.
Example eight
A fuel cell comprising the bipolar plate of embodiment seven.
Example nine
A vehicle comprising the fuel cell of embodiment eight.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (8)
1. The bipolar plate resin composition is characterized by comprising 3-30% of vinyl resin, 70-97% of styrene and 0.1-1% of an inducer.
2. The bipolar plate resin composition of claim 1, wherein the vinyl resin is a standard bisphenol a epoxy vinyl resin synthesized by reacting methacrylic acid with a bisphenol a epoxy resin.
3. The bipolar plate resin composition of claim 1, wherein the inducing agent is azobisisobutyronitrile.
4. The preparation method of the bipolar plate resin composition is characterized by comprising
Adding a certain amount of styrene into the vinyl resin to reduce the viscosity of the resin system to 15 mPa.s;
adding a certain amount of azobisisobutyronitrile into the system, and uniformly stirring to obtain the resin composition.
5. The method for producing a bipolar plate resin composition as claimed in claim 4, wherein the obtained resin composition is stored in a low-temperature storage tank.
6. A bipolar plate obtained by impregnating an expanded graphite sheet with the resin composition according to any one of claims 1 to 3 and then curing the impregnated sheet.
7. A fuel cell comprising the bipolar plate of claim 6.
8. A vehicle characterized by comprising the fuel cell according to claim 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110146862.5A CN114853929A (en) | 2021-02-03 | 2021-02-03 | Bipolar plate resin composition, preparation method, bipolar plate, fuel cell and vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110146862.5A CN114853929A (en) | 2021-02-03 | 2021-02-03 | Bipolar plate resin composition, preparation method, bipolar plate, fuel cell and vehicle |
Publications (1)
Publication Number | Publication Date |
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CN114853929A true CN114853929A (en) | 2022-08-05 |
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Family Applications (1)
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CN202110146862.5A Pending CN114853929A (en) | 2021-02-03 | 2021-02-03 | Bipolar plate resin composition, preparation method, bipolar plate, fuel cell and vehicle |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1344429A (en) * | 1999-03-19 | 2002-04-10 | 量子组合物公司 | Highly conductive molding compounds and fuel cell bipolar plates comprising these compounds |
TWI221039B (en) * | 2003-07-02 | 2004-09-11 | Univ Tsinghua | Preparation of fuel cell composite bipolar plate |
US20040254294A1 (en) * | 2003-06-11 | 2004-12-16 | John Clulow | Conductive adhesive sealant for bipolar fuel cell separator plate assemblies |
-
2021
- 2021-02-03 CN CN202110146862.5A patent/CN114853929A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1344429A (en) * | 1999-03-19 | 2002-04-10 | 量子组合物公司 | Highly conductive molding compounds and fuel cell bipolar plates comprising these compounds |
US20040254294A1 (en) * | 2003-06-11 | 2004-12-16 | John Clulow | Conductive adhesive sealant for bipolar fuel cell separator plate assemblies |
TWI221039B (en) * | 2003-07-02 | 2004-09-11 | Univ Tsinghua | Preparation of fuel cell composite bipolar plate |
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Application publication date: 20220805 |