CN106887619B - A kind of preparation method of hydrophilic porous graphite water transmission plate and water transmission plate thereof - Google Patents
A kind of preparation method of hydrophilic porous graphite water transmission plate and water transmission plate thereof Download PDFInfo
- Publication number
- CN106887619B CN106887619B CN201510933463.8A CN201510933463A CN106887619B CN 106887619 B CN106887619 B CN 106887619B CN 201510933463 A CN201510933463 A CN 201510933463A CN 106887619 B CN106887619 B CN 106887619B
- Authority
- CN
- China
- Prior art keywords
- plate
- hydrophilic
- water
- porous graphite
- preparation
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 54
- 239000010439 graphite Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 title abstract description 6
- 238000000151 deposition Methods 0.000 claims abstract description 45
- 230000008021 deposition Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000002243 precursor Substances 0.000 claims abstract description 19
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 22
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 2
- 239000000446 fuel Substances 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000005518 polymer electrolyte Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000003837 high-temperature calcination Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 235000010344 sodium nitrate Nutrition 0.000 description 3
- 239000004317 sodium nitrate Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- -1 that is Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Abstract
本发明公开了一种亲水多孔石墨水传输板的制备方法及其水传输板，该方法是将经过预处理的硬质多孔石墨板置于电辅助沉积前驱液中，用电辅助沉积法在其孔内沉积一层均匀的亲水层。将该亲水化处理的多孔石墨板用作固体聚合物电解质燃料电池水传输板具有良好的透水、阻气、电导率和抗压强度等特性，并可以有效地缓解电池缺水和水淹情况，提高电池性能和稳定性。本发明的水传输板制作过程中亲水氧化物的沉积量可控。The invention discloses a preparation method of a hydrophilic porous graphite water transmission plate and a water transmission plate thereof. The method comprises the steps of placing a pretreated hard porous graphite plate in an electric-assisted deposition precursor solution, and using an electric-assisted deposition method in A uniform hydrophilic layer is deposited in the pores. The hydrophilized porous graphite plate used as a solid polymer electrolyte fuel cell water transport plate has good properties such as water permeability, gas barrier, electrical conductivity and compressive strength, and can effectively alleviate the water shortage and flooding of the battery. , to improve battery performance and stability. The deposition amount of the hydrophilic oxide is controllable during the manufacturing process of the water transport plate of the present invention.
Description
Technical field
The present invention relates to field of fuel cell technology, belong to the preparation method of the porous bipolar plates of fuel cell, specially one
Proton exchanging film fuel battery graphite porous hydrophilic plate and preparation method thereof.
Background technique
Fuel cell is hopeful to replace fossil energy generation mode to become master in the future with its high-energy density and of low pollution
Stream.And PEMFC has that room temperature starting is fast, electroless liquid stream is lost, low noise advantages, has as mobile power source, various portable
The potentiality of formula power supply and uninterruptible power supply.In PEMFC operational process, cathode can generate water, and generating water must be discharged from battery,
Otherwise the water logging that will cause cathode side influences the transmission of gas.And hydrogen ion can take away a part from anode electromigration to cathode
Hydrone necessarily will cause the drying of anode-side, it is necessary to provide supplement water to the anode-side of battery, the amount for supplementing water will be able to maintain
Anode side catalyst and proton exchange membrane are in wetting state.So guaranteeing that humidification and the balance of draining have important in battery
Meaning.Usual PEMFC is humidified to cell gas using external auxiliary humidification system, but auxiliary system increases the weight of battery
Amount, volume and complexity.For water logging, researchers are usually drained with the methods of impulse blowing, raising stoichiometric ratio,
But this strategy will lead to serious supplementary loss, so that fuel cell system is more complicated.Usual PEMFC is moved using complicated
State draining and humidification auxiliary system are drained and are humidified respectively to realize the management of water, but auxiliary system increases the weight of battery
Amount, volume and complexity, and it is easily reduced the stability in cell operation.Therefore research how to simplify system humidification and
Drainage Design has great importance.
The Konar of U.S.'s Institute of Gas Technology unit et al. [US 5942347] is hydrophilic inorganic
Oxide fine particle mixes compression molding with graphite powder, resin, and Lai Shixian bipolar plate runner side is hydrophilic, and it is raw that hydrophilic substance absorbs cathode
Cheng Shui is humidified to unsaturated gas.Wuhan University of Technology [CN 1004546450] uses perhafnate cement as bonding
Agent and conductive filler graphite carry out molding and form porous graphite plate, make in graphite plate because perhafnate is decomposed to form hydrophilic substance
It can achieve the water balance of humidification and draining containing gel capillary hole, and by adjusting hydraulic pressure." the water transmission of UTC company application
Electrically conductive graphite powder is enhanced carbon fiber, cellulose fibre (cork by plate and its application method " patent of invention [CN 11794280]
Slurry), thermosetting resin and solvent are sprayed on sieve after mixing, vacuum dried to go sieve, rolling curling, multi-laminate
It presses, high temperature graphitization process, obtains porous graphite plate after hydrophilicity-imparting treatment in hole.Though this method prepares resulting water transport plate
So have good pressure in bubbles, water penetration, planar resistor rate and compressive yield strength, but preparation process need 2000 DEG C with
On high temperature carry out graphitization processing.
Summary of the invention
The object of the present invention is to provide a kind of electric assisted depositions to prepare the hydrophilic porous graphite water transport plate of fuel cell,
Guarantee it with characteristics such as good permeable, choke, conductivity and compression strength.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of preparation method of hydrophilic porous graphite water transport plate the following steps are included:
(1) it is placed in porous graphite plate as working electrode in electric assistant depositing precursor liquid, electricity consumption assisted deposition is more
Hole graphite plate inner hole deposition accumulates one layer of hydrophilic film；
(2) by after the plate high-temperature roasting of above-mentioned hydrophilicity-imparting treatment up to hydrophilic porous graphite water transport plate.
The preparation method of step (1) the electric assistant depositing precursor liquid are as follows: electrolyte is added in hydrophilic substance presoma
Solution, and adjusting pH with acid solution is 2-6.Above-mentioned presoma is that ethyl orthosilicate, methyl orthosilicate, butyl titanate are therein
One or two or more kinds, the concentration of presoma are 0.1-1mol/L；Electrolyte solution is NaCl solution, NaNO3Solution, KCl are molten
Liquid, KNO3One of solution or two kinds or more, the total concentration of above-mentioned solute is 0.05-0.5mol/L in electrolyte solution；Acid
Solution is one of hydrochloric acid, sulfuric acid, perchloric acid solution or a variety of, and above-mentioned three kinds sour total concentration are 0.01- in acid solution
1mol/L。
Porous graphite panel aperture described in step (1) is 0.1-20 μm.
Electric assisted deposition described in step (1) is constant voltage method, galvanostatic method, pulse voltage deposits, pulse current sinks
Long-pending one kind.
When the electric assisted deposition is constant voltage method, voltage is (- 2)-(- 6) V, time 30-600s；Described
When electric assisted deposition is galvanostatic method, electric current is 10-500mA cm-2, time 10-300s；The electric assisted deposition
When depositing for pulse voltage, voltage range is (- 6) -0V, and pulse spacing 0.1-10ms, pulse number is 10-100 times；It is described
Electric assisted deposition be pulse current sedimentation when, current range be 10-500mA cm-2, pulse spacing 0.1-10ms, arteries and veins
Jig frequency number is 50-200 times.
The hydrophilic film is SiO2、TiO2It is one such or two kinds.
Step (2) the high-temperature roasting temperature is 300-700 DEG C, time 1-3h.
The hydrophilic porous graphite water transport plate prepared according to the method described above, planar resistor rate are 1-5m Ω cm, bending strength
For 10-50MPa, permeable pressure is 0-0.03MPa, and bubble point 0.05-0.2MPa, contact angle is 5 ° -85 °, average pore size 0.1-
20 μm, porosity 5%-50%, hydrophilic pores ratio is 50%-100%.
Presoma used in the present invention is the lesser organic matter of surface tension, and it is heavy can be effectively diffused into progress electricity auxiliary in hole
Long-pending, graphite oxide can be uniformly distributed in hole in the porous hydrophilic carbon plate of preparation, and electricity consumption assisted deposition can regulate and control
The deposition of hydrophilic substance.
Detailed description of the invention
Fig. 1 is the graphite water transport plate of electric assistant depositing preparation in embodiment 4 from moisturization figure；
Fig. 2 is the graphite water transport plate drainage performance figure of electric assistant depositing preparation in embodiment 5；
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1: 30min is mixed in 50ml sodium nitrate solution (0.1mol/L) and 5g ethyl orthosilicate.To TEOS
After being completely dissolved, hydrochloric acid solution (0.1mol/L) is slowly added dropwise, until pH value is close to 2, it is auxiliary to get electricity that 1h is stirred under greenhouse
Help deposition precursor liquid.The porous carbon sheet that average pore size is 7 μm is placed in electric assistant depositing precursor liquid, porous carbon sheet is as work
Electrode, closely knit smooth graphite plate apply a constant voltage-using constant voltage method as reference electrode and to electrode on the working electrode (s
3.5V carries out electric assistant depositing, time 120s, by 400 DEG C of high-temperature calcination 1h of porous carbon sheet of hydrophilicity-imparting treatment to get porous
Hydrophilic graphite water transport plate.
Embodiment 2: 30min is mixed in 50ml potassium nitrate solution (0.2mol/L) and 5g ethyl orthosilicate.To TEOS
After being completely dissolved, sulfuric acid solution (0.1mol/L) is slowly added dropwise, until pH value is close to 3, it is auxiliary to get electricity that 1h is stirred under greenhouse
Help deposition precursor liquid.The porous graphite plate that average pore size is 7 μm is placed in electric assistant depositing precursor liquid (electric assistant depositing forerunner
Liquid did not had porous graphite plate), porous graphite plate as working electrode, closely knit smooth graphite plate as reference electrode and to electrode,
Apply a constant current 200mA cm on the working electrode (s using galvanostatic method-2Electric assistant depositing is carried out, time 200s will be hydrophilic
Change 400 DEG C of high-temperature calcination 2h of porous graphite plate of processing to get porous hydrophilic graphite water transport plate.
Embodiment 3: 30min is mixed in 100ml sodium nitrate solution (0.2mol/L) and 5g butyl titanate.It is complete to TEOS
After fully dissolved, hydrochloric acid solution (0.1mol/L) is slowly added dropwise, until pH value is close to 4, is stirred for 1h under greenhouse to get electricity auxiliary
Deposition precursor liquid.The porous graphite plate that average pore size is 5 μm is placed in electric assistant depositing precursor liquid (electric assistant depositing precursor liquid
Do not cross porous graphite plate), porous graphite plate is adopted as working electrode, closely knit smooth graphite plate as reference electrode and to electrode
Apply a pulse voltage on the working electrode (s with impulse-voltage method, pulsating sphere is that (- 3) -0V carries out electric assistant depositing, when pulse
Between between be divided into 1ms, pulse number is 200 times, by 450 DEG C of high-temperature calcination 2h of porous graphite plate of hydrophilicity-imparting treatment to get porous
Hydrophilic graphite water transport plate.
Embodiment 4: 50ml potassium nitrate solution (0.2mol/L) is added to 3g ethyl orthosilicate and 2g butyl titanate mixes
30min is stirred in liquid.After ethyl orthosilicate and butyl titanate are completely dissolved, perchloric acid solution is slowly added dropwise, until pH value connects
3,1h is stirred under greenhouse to get electric assistant depositing precursor liquid.The porous graphite plate that average pore size is 3 μm is placed in electric auxiliary
In deposition precursor liquid (electric assistant depositing precursor liquid did not had porous graphite plate), porous carbon sheet is as working electrode, closely knit smooth stone
It is heavy to apply pulse current progress electricity auxiliary using pulse current method as reference electrode and to electrode on the working electrode (s for black plate
Product, pulse current range are 0-200mA cm-2, pulse spacing 1ms, pulse number is 200 times, by the porous of hydrophilicity-imparting treatment
450 DEG C of high-temperature calcination 2h of graphite plate are to get hydrophilic porous graphite water transport plate.As anode current collector plate, soft graphite is made
For cathode collector plate, and the performance evaluation under the conditions of monocell carries out low-humidification is dressed up with membrane electrode assembly.It is not humidified in anode-side
In the case of, as seen from Figure 1, using hydrophilic porous graphite water transport plate in 800mA cm-23000min is run under current density
Substantially do not decay, and with fluid-tight bipolar plates, it cannot be in 800mA cm-2Lower operation.
Embodiment 5: 30min is mixed in 50ml sodium nitrate solution (0.1mol/L) and 5g TEOS.It is completely molten to TEOS
Hydrochloric acid solution is slowly added dropwise in Xie Hou, until pH value is close to 3, is stirred for 1h under greenhouse to get electric assistant depositing precursor liquid.It will
Average pore size is that 1 μm of porous graphite plate is placed in precursor liquid (electric assistant depositing precursor liquid did not had porous graphite plate), porous stone
Black plate applies a constant voltage-as reference electrode and to electrode as working electrode, closely knit smooth graphite plate on the working electrode (s
3.5V carries out electric assistant depositing, time 120s, by 500 DEG C of high-temperature calcination 2h of porous graphite plate of hydrophilicity-imparting treatment to get parent
Water porous graphite water transport plate.As cathode collector plate, soft graphite is dressed up as anode current collector plate, and with membrane electrode assembly
Monocell carries out performance evaluation in the case of being humidified entirely.As seen from Figure 2, for fluid-tight bipolar plates, using parent
Battery performance decline is slower after water porous graphite water transport plate, and battery water logging problem in the case of high electric density is effectively relieved, improves
Battery performance.
Table 1 is the physical property of the porous hydrophilic graphite plate of each embodiment.
Quantitative measurement is carried out to the hydrophilic porous graphite water transport plate of embodiment 1-5 preparation, the results are shown in Table 1.Table 1
Test condition are as follows: when permeable pressure test, the side of plate is added water to, when water side is pressurizeed, and water droplet occurs in the other side of plate
Pressure is permeable pressure；When pressure in bubbles is tested, the side of plate is added water to, is pressurizeed in the other side with nitrogen, water surface has
Pressure when bubble occurs is pressure in bubbles；When permeable amount is tested, the side of plate is added water to, and be pressurized to water cavity
0.02MPa, water, that is, water penetration amount of pressure side reduction.
Claims (5)
1. a kind of preparation method of hydrophilic porous graphite water transport plate, it is characterised in that: the following steps are included:
(1) it is placed in porous graphite plate as working electrode in electric assistant depositing precursor liquid, electricity consumption assisted deposition is in porous stone
One layer of hydrophilic film is deposited in black plate hole；
(2) by the plate high-temperature roasting of above-mentioned hydrophilicity-imparting treatment up to hydrophilic porous graphite water transport plate；
The preparation method of step (1) the electric assistant depositing precursor liquid are as follows: electrolyte solution is added in hydrophilic substance presoma,
And adjusting pH value with acid solution is 2-6；
The acid solution is one of hydrochloric acid, sulfuric acid, perchloric acid solution or a variety of, and concentration is 0.01-1 mol/L；
Presoma is one of ethyl orthosilicate, methyl orthosilicate, butyl titanate or two kinds or more in the precursor liquid, preceding
The concentration for driving body is 0.1-1mol/L；The electrolyte solution is NaCl solution, NaNO3Solution, KCl solution, KNO3Solution
One of or two kinds or more, concentration be 0.05-0.5 mol/L；
The electric assisted deposition is one kind of constant voltage method, galvanostatic method, pulse voltage deposition, pulse current deposition；
The hydrophilic film is SiO2、TiO2It is one such or two kinds.
2. preparation method according to claim 1, it is characterised in that: porous graphite panel aperture described in step (1) is
0.1-20 μm。
3. preparation method according to claim 1, it is characterised in that: when the electric assisted deposition is constant voltage method,
Voltage is -2~-6 V, and the time is 30-600 s；When the electric assisted deposition is galvanostatic method, electric current 10-500
mA·cm-2, the time is 10-300 s；When the electric assisted deposition is that pulse voltage deposits, voltage range is -6~0 V,
Pulse spacing is 0.1-10 ms, and pulse number is 10-100 times；When the electric assisted deposition is pulse current sedimentation,
Current range is 10-500 mAcm-2, the pulse spacing is 0.1-10 ms, and pulse number is 50-200 times.
4. preparation method according to claim 1, it is characterised in that: step (2) the high-temperature roasting temperature is 300-
700 DEG C, the time is 1-3 h.
5. a kind of hydrophilic porous graphite water transport plate of any the method preparation of claim 1-4, it is characterised in that: plane
Resistivity is 1-5 m Ω cm, and bending strength is 10-50 MPa, and permeable pressure is 0-0.03 Mpa, pressure in bubbles 0.05-
0.2 Mpa, contact angle 5o-85o, average pore size is 0.1-20 μm, porosity 5%-50%, and hydrophilic pores account for the ratio of all holes
Example is 50%-100%；
The test method of permeable pressure is to introduce the water into the side of water transport plate, and the exposure of the other side of plate is in air, so
It pressurizes afterwards to water side, the pressure when water droplet occurs in the air side of plate is permeable pressure；The test method of pressure in bubbles
To be pressurizeed in the side of the above-mentioned water transport plate by permeable pressure test with nitrogen, when the other side of plate has bubble to occur
Pressure is pressure in bubbles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933463.8A CN106887619B (en) | 2015-12-15 | 2015-12-15 | A kind of preparation method of hydrophilic porous graphite water transmission plate and water transmission plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933463.8A CN106887619B (en) | 2015-12-15 | 2015-12-15 | A kind of preparation method of hydrophilic porous graphite water transmission plate and water transmission plate thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106887619A CN106887619A (en) | 2017-06-23 |
| CN106887619B true CN106887619B (en) | 2019-06-04 |
Family
ID=59174844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933463.8A Active CN106887619B (en) | 2015-12-15 | 2015-12-15 | A kind of preparation method of hydrophilic porous graphite water transmission plate and water transmission plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106887619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566665A (en) * | 2022-01-28 | 2022-05-31 | 大连华氢动力有限公司 | Autonomous humidification fuel cell bipolar plate assembly, galvanic pile and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034990A (en) * | 2009-09-25 | 2011-04-27 | 北京有色金属研究总院 | Metallic bipolar plate of proton exchange membrane fuel cell and surface modification method thereof |
| CN102191499A (en) * | 2010-03-19 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Method of coating a substrate with nanoparticles including a metal oxide |
| CN101901914B (en) * | 2009-04-23 | 2014-12-17 | 通用汽车环球科技运作公司 | Method of coating a surface of a fuel cell plate |
-
2015
- 2015-12-15 CN CN201510933463.8A patent/CN106887619B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901914B (en) * | 2009-04-23 | 2014-12-17 | 通用汽车环球科技运作公司 | Method of coating a surface of a fuel cell plate |
| CN102034990A (en) * | 2009-09-25 | 2011-04-27 | 北京有色金属研究总院 | Metallic bipolar plate of proton exchange membrane fuel cell and surface modification method thereof |
| CN102191499A (en) * | 2010-03-19 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Method of coating a substrate with nanoparticles including a metal oxide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106887619A (en) | 2017-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102468494B (en) | A kind of vanadium redox flow battery electrode and preparation method thereof, and all-vanadium flow battery | |
| CN111900416A (en) | Preparation method and application of carbon paper impregnated resin for fuel cell gas diffusion layer | |
| CN110048127A (en) | Fuel battery gas diffusion layer, fuel cell and preparation method | |
| CN105576255B (en) | A kind of high power density pemfc stack Special polar board fabrication method | |
| CN106558729B (en) | A kind of lithium ion battery of graphene as anode sizing agent conductive agent | |
| CN110010895B (en) | Carbon fiber-supported magnesium oxide particle cross-linked nanosheet array composite and its preparation method and application | |
| CN103358612B (en) | Alcohol barrier film for direct methanol fuel cell and its preparation method | |
| CN113957472B (en) | A proton exchange membrane electrode for hydrogen production by electrolysis of water and preparation method thereof | |
| CN103762375B (en) | Politef interlayer protection ion exchange membrane, its preparation method and flow battery | |
| CN103531826B (en) | A kind of method based on sacrificing template structure direct methanol fuel cell nano-porous structure membrane electrode | |
| CN104332576B (en) | A kind of preparation method of battery asymmetry SPEEK/PP/FCB composite diaphragm | |
| CN104577083A (en) | Positive electrode sulfur-carrying material of lithium-sulfur battery and preparation method of lithium-sulfur battery | |
| CN101043077A (en) | Application of polyporous material in sodium polysulfide/bromine accumulation energy power cell electric pole | |
| Li et al. | Recent advances and perspectives of practical modifications of vanadium redox flow battery electrodes | |
| CN113913843B (en) | Method for producing hydrogen by electrolyzing water in proton exchange membrane electrolytic cell | |
| CN110190295A (en) | Low pressure low humidity fuel battery gas diffusion layer, fuel cell and preparation method | |
| CN112054215A (en) | A kind of composite electrode based on all-vanadium redox flow battery and preparation method thereof | |
| CN101552342A (en) | Method of compositely manufacturing proton exchange membrane fuel cell bipolar plate and membrane electrode assembly | |
| CN104900847B (en) | Sulfur electrode preparation method by in-situ polymerization of pyrrole monomer | |
| CN105219082A (en) | A kind of composite membrane and application thereof | |
| Liu et al. | Advanced 3D-structured electrode for potassium metal anodes | |
| CN115360398B (en) | A method for preparing a flow battery stack structure and an electrode material | |
| CN108878933A (en) | A kind of preparation method of Nafion/lignin compound proton exchange membrane | |
| CN106098396B (en) | It is a kind of for upright opening carbon compound film of ultracapacitor and preparation method thereof | |
| CN105006558A (en) | Lithium negative electrode with hydrotreated surface and solution-type half-flow lithium-sulfur battery thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220324 Address after: 116023 No. 457, Shahekou, Dalian District, Liaoning, Zhongshan Road Patentee after: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee after: Shao Zhigang Patentee after: Guo Xiaoqian Patentee after: Wang Zhiqiang Patentee after: Zeng Yachao Patentee after: Qin Xiaoping Patentee after: Qu Lijuan Address before: 116023 No. 457, Zhongshan Road, Liaoning, Dalian Patentee before: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220413 Address after: 116023 No. 457, Shahekou, Dalian District, Liaoning, Zhongshan Road Patentee after: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee after: Dalian hydrogen technology partnership (limited partnership) Address before: 116023 No. 457, Shahekou, Dalian District, Liaoning, Zhongshan Road Patentee before: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee before: Shao Zhigang Patentee before: Guo Xiaoqian Patentee before: Wang Zhiqiang Patentee before: Zeng Yachao Patentee before: Qin Xiaoping Patentee before: Qu Lijuan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220422 Address after: 116699 room 815, free trade building, Dalian Free Trade Zone, Liaoning Province Patentee after: Guochuang Hydrogen Energy Technology Co.,Ltd. Address before: 116023 No. 457, Shahekou, Dalian District, Liaoning, Zhongshan Road Patentee before: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee before: Dalian hydrogen technology partnership (limited partnership) |
|
| TR01 | Transfer of patent right |