CN106876757A - A kind of functionalization enhanced proton exchange membrane and preparation method thereof - Google Patents
A kind of functionalization enhanced proton exchange membrane and preparation method thereof Download PDFInfo
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1065—Polymeric electrolyte materials characterised by the form, e.g. perforated or wave-shaped
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
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- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
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- H01M2008/1095—Fuel cells with polymeric electrolytes
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Abstract
The invention discloses a kind of functionalization enhanced proton exchange membrane and preparation method thereof.In pure oxygen type Proton Exchange Membrane Fuel Cells, in order to avoid hydrogen permeates, need to use thicker PEM, but because the running environment humidity of hydrogen-oxygen fuel cell is larger, easily serious swelling problem is brought to PEM, battery context is dried and can shrink PEM after battery parking, and then PEM is subject to serious mechanical damage.The enhanced proton exchange membrane of current commercialization, by introducing enhancing skeleton in film, can significantly reduce its swelling set rate, improve the mechanical strength of proton membrane, but its thickness at most can only achieve 20 microns, it is impossible to meet the application requirement of pure oxygen type fuel cell.The present invention is regarding to the issue above, it is proposed that one kind is improved on the basis of existing enhancement type composite proton exchanging film, prepares the PEM suitable for hydrogen-oxygen fuel cell, can significantly extend resistance to mechanical damping capacity and the life-span of membrane electrode.
Description
Technical field
The invention belongs to Proton Exchange Membrane Fuel Cells field, it is related to one kind to be suitable for being transported in hydrogen-oxygen fuel cell
Capable functionalization enhanced proton exchange membrane and preparation method thereof.
Background technology
Proton Exchange Membrane Fuel Cells is a kind of energy conversion device, and working method is similar to internal combustion engine, can be by hydrogen
Chemical energy in fuel is converted into electric energy and discharges, because it has operating temperature low, energy conversion
Efficiency high, toggle speed is fast, and advantages of environment protection is widely used in automotive traffic, distribution hair
The different fields such as electricity, Aero-Space, underwater engine.Wherein automotive traffic and distributed power generation field can be adopted
With air directly as oxidant, hydrogen-air fuel cell is referred to alternatively as, and in Aero-Space, underwater engine etc.
Field then needs to carry pure oxygen as oxidant, is referred to alternatively as hydrogen-oxygen fuel cell.According to the difference of oxidant,
Hydrogen empty and hydrogen-oxygen fuel cell system administration, internal structure design etc. there is also larger difference.
The core component membrane electrode of fuel cell is the key for determining battery life and performance, wherein to the membrane electrode longevity
The main reason for being PEM, now resulting in fuel cells fail that life and stability play a crucial role
It is exactly the phenomenons such as perforation, the rupture of film.In hydrogen-air fuel cell, in order to improve performance and the reduction of battery
Ohmic resistance, the trend of PEM is more Bao Yuehao, only several to tens microns, although film
The problem for bringing hydrogen to permeate, but due to containing substantial amounts of nitrogen in air, and air mass flow is larger, because
This will not be damaged to membrane electrode.Meanwhile, in order to ensure proton exchange film strength, usual film needs
Strengthened, for example, added one layer of enhancing skeleton in the centre of PEM, or mix with enhancing effect
Inorganic matter etc..But in hydrogen-oxygen fuel cell, the problem of hydrogen infiltration can not then be ignored, PEM
There must be certain thickness, just be avoided that " focus " that hydrogen infiltration is produced, and then avoid causing wound to membrane electrode
Evil.
On the other hand, in hydrogen-air fuel cell, because oxygen content only has 21% in air, in order to meet electrification
The demand for learning reaction reduces diffusional resistance, and the air inflow of air is often higher than actually required metering ratio, so
The water that battery operation is produced just can be discharged smoothly with air tail gas, will not be caused to membrane electrode " water logging "
Problem.And in hydrogen-oxygen fuel cell, oxygen needs to ensure certain utilization rate, it is impossible to according to hydrogen air-fuel material
The intake method of battery is largely supplied, and the removal of aqueous water also cannot rely on tail gas discharge naturally.Current hydrogen-oxygen
Aqueous water discharging modes in fuel cell have the various ways such as fraction water device water-dividing, porous disc draining.
Because hydrogen-oxygen fuel cell is needed using thick film and drainage efficiency is relatively low, thicker PEM is larger
Humidity under be susceptible to the swelling of large scale, easily brought to PEM in drying and watering cycle repeatedly
Serious mechanical damage.The enhanced proton exchange membrane of current commercialization, by introducing enhancing skeleton in film,
Its swelling set rate can be significantly reduced, the mechanical strength of proton membrane is improved, but its thickness can only at most reach
To 20 microns, it is impossible to meet the application requirement of direct methanol fuel cell and pure oxygen type fuel cell.Therefore,
How the PEM in hydrogen-oxygen fuel cell is optimized, while ensureing to avoid hydrogen infiltration problem,
The swellability of PEM is reduced, with very important scientific meaning.
Patents
In order to improve the chemical stability of PEM, the patent of Application No. 201510019249.1 proposes one
Multilayer composite proton exchange membrane is planted, the exchange membrane includes three layers of sulfonic acid polymer film being mutually superimposed, both sides
Outer membrane be perfluorinated sulfonic acid polymer layer, middle basement membrane is non-perfluorinated sulfonic acid polymer layer, outer membrane and base
It is connected with each other by covalent bond between film.
The patent of application number 200910231125.4 proposes a kind of to the fibre reinforced multi-layer fluorine-contained of free radical stabilization
Amberplex, it is constituted by 2-5 layers, and at least one layer monofilm with the addition of as the fiber of reinforcer, and
At least one layer individual layer with the addition of with the material for promoting free radical cracking, and then improve the mechanical stability of film
With reduce penetrating for hydrogen and methyl alcohol.
The content of the invention
Patents 1 are one layer of non-fluorine films of folder in the middle of two-layer perfluoro sulfonic acid membrane above, can reduce thicker matter
The cost of proton exchange, while non-fluorine film can be utilized to improve the mechanical strength of whole proton membrane.It is different
, functionalization enhanced proton exchange membrane prepared by the present invention is still perfluor film, the purpose is to prepare band
There is the thicker full fluorin proton exchange film of enhancing skeleton, and work(is added by the amberlite lipid layer of spraying
Energy additive, realizes the purpose that free radical is quenched and is humidified certainly.
Patents 2 are the perfluoro sulfonic acid membranes for preparing sandwich construction above, by adding different material in individual layer,
Reach the purpose for improving film-strength and promoting free radical cracking.The present invention is different, using with increasing
The slim enhancing film of strong skeleton is quenched as basement membrane, on its basis spraying with the free radical that is humidified certainly, promotes
The functional additive of function forms the thickness extension layer of functionalization, and further by the slim enhancing film layer of multilayer
Folded hot pressing forms the functionalization enhancing film of thicker.
The infiltration of hydrogen-oxygen fuel cell hydrogen and frequent dry and wet can be simultaneously solved it is an object of the invention to provide one kind
The thicker functionalization enhanced proton exchange membrane of operation, the working environment special to adapt to hydrogen-oxygen fuel cell,
And then ensure reliability and the life-span of hydrogen-oxygen fuel cell.
To achieve the above object, the technical solution adopted by the present invention is：
Using 1-3 layers of slim enhanced proton exchange membrane as counterdie (polytetrafluoroethylporous porous membrane as enhancing skeleton),
In the solution that its surface spraying ion exchange resin and functional additive are constituted, the thickness extension of functionalization is formed
Layer and tack coat, further by hot pressing, 1-3 layers of thin layer enhanced proton exchange membrane are laminated into the work(of thicker
Enhanced proton exchange membrane can be changed.
Described counterdie, be thickness at 8-20 microns, in the middle of any one contain polytetrafluoroethylporous porous membrane make
To strengthen the commercialization PEM of skeleton, continue to spray ion exchange resin and function addition on its surface
The solution of agent composition, forms the thickness extension layer and tack coat of functionalization.
Described spray solution, it is made up of ion exchange resin (usually Nafion) and functional additive,
The functional additive includes inorganic particles (preferably MnO2, CeO2, Ag2One kind in O etc. or
It is several), inorganic, metal oxide (the preferably sulfonation CeO of organic matter treatment2, sulfonation MnO2, sulfonation
Ag2One or more in O), heteropoly acid is (in preferably 12-HSW, 21-HPW, Tricesium dodecatungstophosphate etc.
One or more) composition, its ion exchange resin is 100 with the weight ratio of functional additive:0~95:5, work(
The particle diameter of energy additive is in 10-30nm.
The functionalization enhanced proton exchange membrane, when the counterdie number of plies is 1 layer, selection thickness is that 18-20 is micro-
The enhanced proton exchange membrane of rice counterdie is placed in 60-80 ° of heater plate surface, to counterdie two as counterdie
Side sprays by Nafion ion exchange resins and functional additive (with absorbent function, anti-free radical function respectively
One or two) solution of composition, functionalization thickness extension layer of the thickness at 5-15 micron is formed respectively,
Functional additive species contained by the functionalization extension layer of both sides and proportioning can be according to functionalization each self-regulateds of requirement
Section, then by film at 140 °, hot pressing 1-5min under gauge pressure 1-5Mpa obtains the thickness with difference in functionality
Layer function enhanced proton exchange membrane.
The functionalization enhanced proton exchange membrane, when the counterdie number of plies is 2 layers, selection thickness is that 12-17 is micro-
The enhancing film of rice counterdie is placed in 60-80 ° of heater plate surface, respectively to two the one of counterdie as counterdie
Side spray is applied by Nafion ion exchange resins and functional additive (with absorbent function, anti-free radical function
Kind or two kinds) solution of composition, form functionalization extension layer of the thickness at 5-15 micron, the expansion of two-layer functionalization
Functional additive species contained by exhibition layer and proportioning can be according to functionalization each self-regulations of requirement.Then by two
The spray-coating surface of film is relative, and at 140 °, hot pressing 1-5min under gauge pressure 1-5Mpa obtains the increasing of functionalization thick-layer
Strong type PEM.
The functionalization enhanced proton exchange membrane, when counterdie is 3 layers, selection thickness is 8-11 microns for institute
Used as counterdie, the both sides spraying Nafion and functional additive of 1 film (have enhancing film thereto under 60-80 °
By one or two in absorbent function, anti-free radical function) solution that constitutes, form thickness micro- in 5-15
The functionalization extension layer of rice, (has water suction to the unilateral spraying Nafion and functional additive of other two films
One or two in function, anti-free radical function) composition solution, form work(of the thickness at 5-15 microns
Extension layer can be changed, functional additive species contained by above-mentioned four layer functions extension layer and proportioning can be according to work(
Energyization requires each self-regulation, then that three spray-coating surfaces of film are relative, at 140 °, heat under gauge pressure 1-5Mpa
Pressure 1-5min, that is, obtain thicker functionalization enhanced proton exchange membrane.
The enhanced proton exchange membrane for preparing according to the method described above, its proton conductivity is in 0.05~0.09S/cm.It is vertical
To/transverse tensile strength 40-60MPa, hydrogen percent of pass ＜ 0.01ml*min*cm2。
The invention has the advantages that：
1., by using 1-3 layers of slim enhanced proton exchange membrane as counterdie, thickness is prepared at 28-93 microns
Thicker functionalization enhanced proton exchange membrane, can solve the problems, such as that current thicker PEM swellbility is big.
2., by using 1-3 layers of slim enhanced proton exchange membrane as counterdie, thickness is prepared at 28-93 microns
Thicker functionalization enhanced proton exchange membrane, can solve that current enhanced proton exchange membrane is relatively thin easily to be oozed
The problem of hydrogen.
3., by using 1-3 layers of slim enhanced proton exchange membrane as counterdie, thickness is prepared at 28-93 microns
Thicker functionalization enhanced proton exchange membrane, it is possible to achieve the functionalization of enhanced proton exchange membrane is improving combustion
Expect the life-span of battery.
Brief description of the drawings
Fig. 1 is the structural representation of enhanced proton exchange membrane in the present invention；
Fig. 2 is the Ohmic resistance comparison diagram of electrode in embodiment 1；
Fig. 3 is the service life comparison diagram of electrode in embodiment 2.
Specific embodiment
Referring to Fig. 1, three kinds of situations of structural representation point of the enhanced proton exchange membrane in the present invention, situation 1
There is a hypoglyph, situation 2 there are two hypoglyphs, and situation 3 has Tipple Bottom film, and (1) is enhanced thin layer in figure
Counterdie, (2) are ion exchange resin and the functional additive layer of spraying
Embodiment 1
The SiO of sulfonation treatment is prepared first2And CeO2, by 10g Nano-meter SiO_2s2, the propyl group sultone of 10g 1,3,
With toluene as solvent, 36h is reacted at 110 DEG C.After the completion of reaction, cleaned repeatedly with toluene 3 times, dried,
Obtain sulfonation SiO2。
The NaOH solution of 0.05mol/L is prepared, it is molten with the Potassium Hydrogen Phthalate standardization of solution NaOH for preparing
Liquid.By sulfonation SiO2It is immersed in saturation NaCl solution to place 3 days, ultimately forms sulfonation degree for 24% sulfonation SiO2
Powder.Sulfonation CeO2Preparation process it is same.The above-mentioned sulfonation SiO for preparing2And CeO2Particle diameter exists
Between 10-30nm.
The HP films (20 microns of thickness) of an area about 10cm × 10cm E.I.Du Pont Company are taken, is fixed in
In 60 ° of thermal station, the Nafion solution 50g of 5wt% is weighed, add 80mg sulfonation SiO2With 50mg sulfonation
CeO2, using 5 times of isopropanol and it is well mixed after, uniformly sprayed HP films surface, control
Stop spraying after spraying to about 5 microns of the extension layer thickness on film surface, form unilateral thickness extension layer.Then
By the stand-by spraying opposite side thickness extension layer of film turn-over.
After by the above-mentioned film drying for coating thickness extension layer, it is placed in platen-press, 140 ° of design temperature,
Hot pressing pressure 1Mpa, hot pressing 1min, the thickness for forming integration are about 30 microns of enhancing film, using four
Sonde method tests its proton conductivity for 0.09S/cm, and longitudinal direction/transverse tensile strength about 30MPa, hydrogen passes through
Rate 0.008ml*min*cm2。
It is sandwiched in the middle of two gas-diffusion electrodes of area 5cm × 5cm, hot pressing is into membrane electrode integrated
Component (1), assembling monocell carries out Ohmic resistance test, and carries out stability test.
Embodiment 2
1 domestic enhancing film of area about 10cm × 10cm (15 microns of thickness) is taken, 80 ° of heat are fixed in
On platform, weigh the Nafion solution 50g of 5wt%, using 5 times of isopropanol it is well mixed after, its is equal
Even to spray to enhancing film single side surface, control stops after spraying to about 10 microns of the extension layer thickness on film surface
Spraying, forms unilateral thickness extension layer.
1 domestic enhancing film of area about 10cm × 10cm (15 microns of thickness) is taken, 80 ° of heat are fixed in
On platform, the Nafion solution 50g of 5wt% is weighed, add 20mg SiO2With 30mg CeO2, both particle diameters
Between 10-30nm, using 5 times of isopropanol it is well mixed after, uniformly sprayed enhancing
Film single side surface, control stops spraying after spraying to about 10 microns of the extension layer thickness on film surface, forms unilateral
Thickness extension layer.
It is after by the enhancing film drying of above-mentioned spraying extension layer, extension layer is relative, bonded using flat-bed press,
140 ° of design temperature, hot pressing pressure 3Mpa, hot pressing 3min, the thickness for forming integration is about 50 microns
Enhancing film, test its proton conductivity for 0.06S/cm using four probe method, longitudinal direction/transverse tensile strength is about
50MPa, hydrogen percent of pass 0.005ml*min*cm2。
It is sandwiched in the middle of two gas-diffusion electrodes of area 5cm × 5cm, hot pressing is into membrane electrode integrated
Component (1), assembling monocell carries out Ohmic resistance test, and carries out stability test.
Embodiment 3
A domestic enhancing film of area about 10cm × 10cm (8 microns of thickness) is taken, 70 ° are fixed in
In thermal station, the Nafion solution 50g of 5wt% is weighed, add 50mg sulfonation SiO2, using isopropanol
After 5 times well mixed, enhancing film surface is uniformly sprayed, control sprays to the extension thickness on film surface
Stop spraying after about 15 microns of degree, form unilateral extension layer.Then film turn-over is continued to spray opposite side extension
Layer.
Two domestic enhancing films of area about 10cm × 10cm (8 microns of thickness) are taken, is fixed in respectively
In 70 ° of thermal station, the Nafion solution 50g of 5wt% is weighed, add 50mg sulfonation CeO2, using isopropanol
After 5 times of dilution is well mixed, it is uniformly sprayed respectively to two kinds of enhancing film surfaces, control to spray to film
Stop spraying after about 15 microns of the extension layer thickness on surface, form unilateral extension layer.
It is after by the enhancing film drying of above-mentioned spraying extension layer, four extension layers are relative, it is viscous using flat-bed press
Close, 140 ° of design temperature, hot pressing pressure 5Mpa, hot pressing 5min, the thickness for forming integration is about 84
The enhancing film of micron, its proton conductivity is tested for 0.05S/cm using four probe method, and longitudinal direction/cross directional stretch is strong
Degree about 60MPa, hydrogen percent of pass 0.004ml*min*cm2。
It is sandwiched in the middle of two gas-diffusion electrodes of area 5cm × 5cm, hot pressing is into membrane electrode integrated
Component (1), assembling monocell carries out Ohmic resistance test, and carries out stability test.
Fig. 2 gives the Ohmic resistance of membrane electrode in three embodiments above, and with same case under 115 films
And 212 the Ohmic resistance of film membrane electrode contrasted.
Fig. 3 is that 115 films and 212 film membrane electrodes under above-mentioned three kinds of electrodes and same case carry out life-span survey respectively
The result of examination, experienced identical pulse drainage frequency, and identical humidification conditions, Drought-wet change it
Afterwards, wherein 212 film membrane electrodes take place perforation problem in operation 500h or so, 115 film membrane electrodes are in fortune
Row 800h effects take place perforation, and three kinds of membrane electrodes in above-described embodiment run more than 1000h not
Generation perforation problem.
Claims (7)
1. a kind of functionalization enhanced proton exchange membrane, it is characterised in that with one layer of polytetrafluoroethylporous porous membrane
It is counterdie, the one kind or two having from humidification, anti-free radical function is prepared in two side surfaces of a hypoglyph
The functionalization thickness extension layer planted, obtains functionalization enhanced proton exchange membrane；
Or, being counterdie with more than two layers of polytetrafluoroethylporous porous membrane, being prepared between more than two layers counterdies has
One or two functionalization thickness extension layer from humidification, anti-free radical function, obtains functionalization enhanced
PEM.
2. according to functionalization enhanced proton exchange membrane described in claim 1, it is characterised in that：The counterdie
The number of plies be 1-3 layers；The carrier film thickness at 8-20 microns, described functionalization enhanced proton exchange membrane
Thickness at 28-93 microns.
3. according to functionalization enhanced proton exchange membrane described in claim 1, it is characterised in that：The function
Change enhanced proton exchange membrane proton conductivity scope in 0.05~0.09S/cm, longitudinal direction/transverse tensile strength
40-60MPa, hydrogen percent of pass ＜ 0.01ml*min*cm2。
4. the preparation method of functionalization enhanced proton exchange membrane described in a kind of claim 1,2 or 3, it is special
Levy and be：When the counterdie number of plies is 1 layer, selection thickness is made for 18-20 microns of polytetrafluoroethylporous porous membrane
Be counterdie, counterdie be placed in 60-80 ° of heater plate surface, to counterdie both sides spray respectively by Nafion from
Subtree fat and functional additive (have absorbent function, anti-free radical function in one or two) composition
Solution, forms functionalization thickness extension layer of the thickness at 5-15 microns, the functionalization extension layer institute of both sides respectively
Then species containing functional additive and proportioning can exist film according to functionalization each self-regulation of requirement
120-140 °, hot pressing 1-5min under gauge pressure 1-5Mpa obtains the thick-layer functionalization with difference in functionality and increases
Strong type PEM；
Or, when the counterdie number of plies is 2 layers, selection thickness is 12-17 microns of polytetrafluoroethylporous porous membrane conduct
Counterdie, counterdie is placed in 60-80 ° of heater plate surface, is sprayed by Nafion to two sides of counterdie respectively
Ion exchange resin and functional additive (have absorbent function, anti-free radical function in one or two) composition
Solution, form functionalization extension layer of the thickness at 5-15 microns, function contained by two-layer functionalization extension layer adds
Plus agent species and proportioning can be according to functionalization each self-regulations of requirement；It is then two spray-coating surfaces of film are relative,
At 120-140 °, hot pressing 1-5min under gauge pressure 1-5Mpa obtains the enhanced proton exchange of functionalization thick-layer
Film；
Or, when counterdie is 3 layers, the polytetrafluoroethylporous porous membrane that thickness is 8-11 microns is selected as counterdie,
Under 60-80 ° thereto 1 film both sides spraying Nafion and functional additive (have absorbent function,
One or two in anti-free radical function) composition solution, form functionalization expansion of the thickness at 5-15 micron
Exhibition layer, (has absorbent function, anti-freedom to the unilateral spraying Nafion and functional additive of other two films
One or two in base function) composition solution, form functionalization extension layer of the thickness at 5-15 microns,
Functional additive species contained by above-mentioned four layer functions extension layer and proportioning can be respective according to functionalization requirement
Regulation, it is then that three spray-coating surfaces of film successively order are relative, at 120-140 °, heat under gauge pressure 1-5Mpa
Pressure 1-5min, that is, obtain thicker functionalization enhanced proton exchange membrane；
Or, when counterdie is the N layers of above, N is the positive integer more than or equal to 4, selection thickness is 8-11 microns
Polytetrafluoroethylporous porous membrane as counterdie, the N-2 both sides spraying Nafion of film thereto under 60-80 °
With the solution of functional additive (have absorbent function, anti-free radical function in one or two) composition,
Functionalization extension layer of the thickness at 5-15 microns is formed, to unilateral spraying Nafion and the work(of other two films
Can additive (have absorbent function, anti-free radical function in one or two) composition solution, formed
Functionalization extension layer of the thickness at 5-15 microns, functional additive species contained by above-mentioned functions extension layer and
Proportioning can be then relative by the N spray-coating surface of film successively order according to functionalization each self-regulation of requirement,
120-140 °, hot pressing 1-5min under gauge pressure 1-5Mpa obtains thicker functionalization enhanced proton exchange membrane.
5. according to the preparation method described in claim 4, it is characterised in that：Functional additive include it is following in
One or two or more kinds, the MnO in inorganic, metal oxide2, CeO2, Ag2One or two or more kinds in O；
Sulfonation CeO in the inorganic, metal oxide of organic matter treatment2, sulfonation MnO2, sulfonation Ag2One kind in O or
More than two kinds；One or two or more kinds in 12-HSW in heteropoly acid, 21-HPW, Tricesium dodecatungstophosphate etc.；
Ion exchange resin Nafion is 100 with the weight ratio of functional additive:0~95:5.
6. according to the preparation method described in claim 4 or 5, it is characterised in that：Described functional additive,
Particle diameter is in 10-30nm.
7. preparation method according to claim 5, it is characterised in that：The inorganic metal of organic matter treatment
Sulfonate radical accounts for the 20-30% of gross weight in oxide.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841881A (en) * | 2017-11-28 | 2019-06-04 | 中国科学院大连化学物理研究所 | A kind of preparation method of enhanced proton exchange membrane |
| CN112054224A (en) * | 2020-09-30 | 2020-12-08 | 香港科技大学 | High-strength ultrathin integrated proton exchange membrane |
| CN114214688A (en) * | 2021-11-18 | 2022-03-22 | 宁波东泱氢能科技有限公司 | Method for improving degradation of oxidation-resistant free radicals of proton exchange membrane |
| CN117250130A (en) * | 2023-11-20 | 2023-12-19 | 华电重工机械有限公司 | Proton exchange membrane hydrogen permeation testing method |
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| CN101170181A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | A compound proton exchange film for self-humidity increase fuel battery and its making method |
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| CN102479959A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Self-humidifying proton exchange film for fuel cell, and preparation method thereof |
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