CN105576255B - A kind of high power density pemfc stack Special polar board fabrication method - Google Patents
A kind of high power density pemfc stack Special polar board fabrication method Download PDFInfo
- Publication number
- CN105576255B CN105576255B CN201510939627.8A CN201510939627A CN105576255B CN 105576255 B CN105576255 B CN 105576255B CN 201510939627 A CN201510939627 A CN 201510939627A CN 105576255 B CN105576255 B CN 105576255B
- Authority
- CN
- China
- Prior art keywords
- special
- pole plate
- power density
- high power
- fabrication method
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous 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
- H01M8/02—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
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention discloses a kind of high power density pemfc stack Special polar board fabrication method, comprises the following steps：The short fibre of carbon fiber is put into dispersion liquid and manufactures paper with pulp into the thick carbon fiber felts of 0.3 ~ 0.5mm using paper machine；Thermosetting resin, carbon dust or graphite powder, pore creating material, reinforcing agent DH 4 are mixed in parts by weight and are configured to maceration extract, carbon fiber felt is placed on 10 ~ 15min in maceration extract, vacuum precuring；Impregnation of carbon fibers felt is cut in flakes using cutting apparatus；Molding formed with gas stream scene, while the pole plate with platen surface；High temperature graphitization processing；It is put into PTFE solution and soaks, calcination hydrophobic treatment is being carried out after draining；The applying conductive cushion in the platen surface of pole plate.The special pole plate that the present invention is prepared using new formula, technique, surface rolling goes out flow field, instead of traditional bipolar plates and gas diffusion layers, you can the gas inside incoming fuel battery pile is distributed, bipolar plates need not be set, there is the advantages of lightweight, compact, efficient.
Description
Technical field
The invention belongs to fuel cell field, and in particular to a proton exchanging film fuel battery (PEMFC) pile is special
Pole plate manufacture method.
Background technology
Proton Exchange Membrane Fuel Cells is as a kind of efficient, environment-friendly TRT, in base station power, middle-size and small-size electricity
Stand, electric car, stand-by power supply, portable power supplies etc., have broad application prospects.Traditional fuel cell, it is by film electricity
Pole, bipolar plates, collector plate, end plate and fastener composition, in actual applications, it is superimposed progress by multiple battery units
It is together in series, forms pile.Current fuel cell can only be applicable, pole due to reasons such as volume, weight in some particular places
The big popularization and application for constraining fuel cell, bipolar plates are components most heavy in fuel cell component, main to play support and divide
The effect of gas distribution.In fuel cell in the market, pile is assembled using metal double polar plates or graphite bi-polar plate mostly, its
Manufacturing cost is higher, and the utilization rate of membrane electrode is low, at the same weight account for pile weight more than half, volume accounts for fuel cell volume
30~70% or so so that fuel cell weight and volume are bigger than normal, fuel cell application and field, now to combustion
Expect that the bulk density of battery and weight density are required close under conditions of making excessive demands, increasingly govern the commercialization pin of fuel cell
Step, lighting and compact-sized chemical conversion are one of emphasis of fuel cell future development.
How to mitigate the weight of fuel cell pile, fuel cell volume energy density is improved, by fuel cells applications model
Enclosing more extensively, turns into the major issue for being badly in need of solving at present, and emphasis just exists the problem of fuel cell pile lighting and densification
In the transformation to conventional fuel cell bipolar plate structure.During solving the problem, prior art provides several schemes,
Give up metal double polar plates and graphite bi-polar plate, by using without polar-plate-type PEMFC, mitigate fuel cell pile so as to reach
The purpose of weight, but be not only that electrode reaction provides a variety of of gas passage, electron channel and drainage channel without polar-plate-type PEMFC
Function, also acts as the effect of support catalyst layer, stabilized electrodes structure, therefore must be examined to the design without polar-plate-type PEMFC
Consider combination property when using.
Yi Peiyun is in its Shanghai Communications University Ph.D. Dissertation " no polar-plate-type proton exchange membrane fuel cell structure design
With manufacturing process research " in provide one kind without polar-plate-type PEMFC, be made up of CMEA, end plate, seal and fastener, CMEA
For the most basic unit without polar-plate-type PEMFC, membrane electrode " three-in-one " component of catalyst is respectively coated by both sides
(Catalyst Coated Membrane, CCM) and metal gas diffusion layer (Metallic Gas Diffusion Layer,
MGDL) formed by hot pressing.It is without polar-plate-type PEMFC basic functional principles：Self-assembling formation after adjacent undaform CMEA assemblings
Die cavity, constitutes reacting gas runner, and reacting gas reaches electrode surface by metal GDL micropores diffusion and electrochemistry occurs
Reaction.Traditional bipolar plates can be removed using above-mentioned no polar-plate-type PEMFC structures, raw material is reduced and be processed into
This, reduces pile weight and volume；But the gas flowfield of processing is undaform, Field Characteristics are complicated, high processing costs, is adopted
GDL has higher required precision in processing gas runner to shaping mould made of sintered metal fiber material, processed
There is the problem of big error, fiber easy fracture in journey, and the limit Forming depth after processing is only 0.658mm；And its design when
Do not consider the various problems such as pile cooling problem, assembling, only rest on theoretical research stage, can not popularization and application.
The content of the invention
Goal of the invention：Present invention aims in view of the shortcomings of the prior art, there is provided one kind can be greatly reduced weight, subtract
The high power density pemfc stack Special polar board fabrication method of small size.
Technical scheme：High power density pemfc stack Special polar board fabrication method of the present invention, comprises the following steps：
(1) embryo processed：The short fibre of carbon fiber is put into dispersion liquid and is configured to scattered slurries, 0.3 is manufactured paper with pulp into using paper machine~
Carbon fiber felt thick 0.5mm, wound after drying, be stand-by；
(2) impregnate：Thermosetting resin, carbon dust, pore creating material, reinforcing agent DH-4 are mixed in parts by weight and are configured to soak
Stain liquid, wherein 35~60 parts of thermosetting resin, 45~65 parts of carbon dust, 0.5~1.5 part of pore creating material, reinforcing agent DH-41.5~2.5
Part, carbon fiber felt made of step (1) is placed on 10~15min in maceration extract, pulls out and drains, under the conditions of 70~120 DEG C
Vacuum precuring 30min, wind, be stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut into the stacking of sheet of carbon fiber felt put and be molded in a mold, after compression molding
Formed with gas stream scene, while the special pole plate with platen surface, the number of plies of stacking is according to the thickness of special pole plate
Set；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 1800~2300 DEG C of high temperature；
(6) it is hydrophobic：Special pole plate after graphitization is put into 20wt%~50wt% PTFE solution and soaked, is drained
Afterwards, the calcination hydrophobic treatment at 300~400 DEG C, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Layer conductive buffer layer.
Preferably, the short fibre of the carbon fiber is that a kind of, staple length is 3~8mm in T300~T1000 carbon fibers；It is described
Dispersion liquid is formed using 5000ml water and 5~15g dispersants proportioning stirring and dissolving.Further preferably, the carbon fiber is short fine long
Spend and formed for 5mm, the dispersion liquid using 5000ml water with 10g polyacrylamide stirring and dissolvings.
Preferably, the maceration extract is using thermosetting resin, carbon dust, pore creating material, reinforcing agent DH-4 by ratio of weight and the number of copies 44:
53:1:2 mixing configurations form.
Preferably, the thermosetting resin is a kind of in phenolic resin, epoxy resin, acrylic resin or polyester resin
Or several mixture；The carbon dust is mixing one or more of in XC-72, Ketjen black, carbonaceous mesophase spherules, CNT
Thing；The particle diameter of the carbon dust is 1000~15000 mesh.
Preferably, the special electrode thickness after the completion of step (5) graphitization is 0.6~3mm, porosity is 55%~
85%, aperture is 0.2~5 μm.
Preferably, gas flowfield includes two kinds of cathode plate flow field and plate flow field in the step (4).
Preferably, the flow channel depth in the cathode plate flow field is 0.5~2mm, and the flow channel depth in plate flow field is
0.3~1mm.
Preferably, the shape of the gas flowfield includes serpentine flow, DC fields, mixing flow field, point-like flow field.
Preferably, the thickness of step (7) conductive buffer layer is 10-100 μm.
The present invention operation principle be：Hydrogen enters pile by respective air inlet respectively with oxygen, in special pole plate table
It is uniformly distributed in the presence of the gas flowfield of face, and progress corresponding electricity in membrane electrode surface is diffused into by the hole of the special pole plate
Chemical reaction.
Beneficial effect：(1) present invention prepares the special pole plate of fuel cell using new formula, technique, with high intensity, just
Property is strong, and gas-premeable is good, its bending strength ＞ 30MPa, tensile strength ＞ 20MPa, compression strength ＞ 1GPa, its surface rolling
Go out gas flowfield, without setting bipolar plates, you can the gas inside incoming fuel battery pile is distributed, redefined
The concept of fuel cell, there is the advantages of lightweight, compact, efficient, be advantageous to widen the application field of fuel cell；
(2) special pole plate prepared by inventive formulation and technique adds reinforcing agent, reaches the mechanical strength of conventional bipolar plate,
It can be played a supporting role inside pile, while lightweight is ensured, ensure the hardness of pole plate, without bipolar plates or dividing plate branch
Support, be advantageous to mitigate the weight and volume of pile；The ratio bulk density and proportion metric density of pile are improved, is had again suitably
Rigidity with it is flexible, beneficial to the making of electrode, the combination pressure that applies can be born when battery unit is assembled into and constant
Shape, meet the stability of long period of operation condition lower electrode arrangement；
(3) present invention goes out different depth according to the difference of cathode flow field and anode flow field in the surface rolling of special pole plate
Flow field, the difference control of processing work is ensured the homogeneity of product in ± 0.01mm, there is uniform porous structure and ventilative
Performance, it is ensured that oxidant gas and fuel gas gas are uniformly distributed in respective flow field, close structure and surfacing, are reduced
Contact resistance, improve the performance of pile；
(4) formula that the present invention provided by the invention uses has chemical stability and heat endurance, and manufacturing process is simple,
Cost is low, is easy to mass, large-scale promotion application.
Brief description of the drawings
Fig. 1 is the pipes' analysis structural representation of special pole plate of the present invention；
Fig. 2 is the platen surface structural representation of special pole plate of the present invention；
Fig. 3 is Fig. 1 Section A-A figure.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
As Figure 1-3：Positive and negative two of the ultralight pemfc stack Special polar board fabrication method of pole plate in following examples
Face is respectively flow field face 1 and platen surface 2, has flow field 4 wherein on flow field face 1, conductive buffer layer 3 is coated with platen surface 2.
Embodiment 1：The above-mentioned ultralight pemfc stack Special polar board fabrication method of pole plate：Comprise the following steps：
(1) embryo processed：The short fine T1000 of carbon fiber, chopped length are put into dispersion liquid for 5mm and are configured to scattered slurries, point
Dispersion liquid is formed using 5000ml water with 10g polyacrylamide stirring and dissolvings, and the thick carbon fibers of 0.4mm are manufactured paper with pulp into using paper machine
Felt, wound after drying, be stand-by；
(2) impregnate：By phenolic resin, the CNT of 12000 mesh, pore creating material, reinforcing agent DH-4 by ratio of weight and the number of copies 44:
53:1:2 mixings are configured to maceration extract, and carbon fiber felt made of step (1) is placed on into 13min in maceration extract, pulls drip out
It is dry, the vacuum precuring 30min under the conditions of 100 DEG C, wind, be stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut by the stacking of sheet of carbon fiber felt according to special electrode thickness put and carry out in a mold
Molding, after compression molding formed with serpentine flow scene, while the special pole plate with platen surface, there is cathode plate stream
The deep processing of field flow road is 1mm, and there is plate flow field flow channel depth to be processed as 0.6mm；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 2000 DEG C of high temperature, after the completion of special electrode thickness be 2mm, porosity 65%, aperture is 2 μm；
(6) it is hydrophobic：Special pole plate after graphitization is put into 30wt% PTFE solution and soaked, after draining, at 350 DEG C
Lower calcination hydrophobic treatment, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Thickness degree is 60 μm of conductive buffer layers.
Embodiment 2：Above-mentioned high power density pemfc stack Special polar board fabrication method：Comprise the following steps：
(1) embryo processed：The short fine T300 of carbon fiber, chopped length are put into dispersion liquid for 3mm and are configured to scattered slurries, is disperseed
Liquid is formed using 5000ml water with 5g polyacrylamide stirring and dissolvings, is manufactured paper with pulp into the thick carbon fiber felts of 0.3mm using paper machine, is done
Wound after dry, be stand-by；
(2) impregnate：By epoxy resin, the graphite powder of 15000 mesh, pore creating material, reinforcing agent DH-4 by ratio of weight and the number of copies 38:
45:0.5:1.5 mixings are configured to maceration extract, and carbon fiber felt made of step (1) is placed on into 10min in maceration extract, dragged for
Go out to drain, the vacuum precuring 30min under the conditions of 75 DEG C, wind, be stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut by the stacking of sheet of carbon fiber felt according to special electrode thickness put and carry out in a mold
Molding, after compression molding formed with direct current flow field face, while the special pole plate with platen surface, there is cathode plate stream
The deep processing of field flow road is 0.6mm, and there is plate flow field flow channel depth to be processed as 0.3mm；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 1800 DEG C of high temperature, after the completion of special electrode thickness be 1mm, porosity 55%, aperture is 1 μm；
(6) it is hydrophobic：Special pole plate after graphitization is put into 20wt% PTFE solution and soaked, after draining, at 300 DEG C
Lower calcination hydrophobic treatment, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Thickness degree is 10 μm of conductive buffer layers.
Embodiment 3：Above-mentioned high power density pemfc stack Special polar board fabrication method：Comprise the following steps：
(1) embryo processed：The short fine T800 of carbon fiber, chopped length are put into dispersion liquid for 8mm and are configured to scattered slurries, is used
5000ml water forms with 15g polyacrylamide stirring and dissolvings, the thick carbon fiber felts of 0.5mm is manufactured paper with pulp into using paper machine, after drying
Wind, be stand-by；
(2) impregnate：The mixture of epoxy resin and polyester resin, 1000 mesh Ketjen blacks, pore creating material, reinforcing agent DH-4 are pressed
Ratio of weight and number 50:60:1.4:2.2 mixings are configured to maceration extract, and carbon fiber felt made of step (1) is placed on into dipping
15min in liquid, pulls out and drains, the vacuum precuring 30min under the conditions of 110 DEG C, winds, be stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut by the stacking of sheet of carbon fiber felt according to special electrode thickness put and carry out in a mold
Molding, after compression molding formed with mixed flow scene, while the special pole plate with platen surface, there is cathode plate stream
The deep processing of field flow road is 1.8mm, and there is plate flow field flow channel depth to be processed as 0.6mm；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 2300 DEG C of high temperature, after the completion of special electrode thickness be 3mm, porosity 80%, aperture is 4 μm；
(6) it is hydrophobic：Special pole plate after graphitization is put into 40wt% PTFE solution and soaked, after draining, at 400 DEG C
Lower calcination hydrophobic treatment, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Thickness degree is 100 μm of conductive buffer layers.
Embodiment 4：Above-mentioned high power density pemfc stack Special polar board fabrication method：Comprise the following steps：
(1) embryo processed：The short fine T700 of carbon fiber, chopped length are put into dispersion liquid for 6mm and are configured to scattered slurries, is used
5000ml water forms with 8g polyacrylamide stirring and dissolvings, the thick carbon fiber felts of 0.35mm is manufactured paper with pulp into using paper machine, after drying
Wind, be stand-by；
(2) impregnate：By the mixture of acrylic resin and polyester resin, 5000 mesh carbonaceous mesophase spherules, pore creating material, increasing
Strong agent DH-4 by ratio of weight and the number of copies 45:55:1.2:1.8 mixings are configured to maceration extract, by carbon fiber felt made of step (1)
12min in maceration extract is placed on, pulls out and drains, the vacuum precuring 30min under the conditions of 90 DEG C, winds, is stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut by the stacking of sheet of carbon fiber felt according to special electrode thickness put and carry out in a mold
Molding, formed after compression molding one side have mixed flow scene, while the high-intensity-gas diffusion layer with platen surface, with cloudy
Pole polar plate flow field flow channel depth is processed as 2mm, and there is plate flow field flow channel depth to be processed as 1mm；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 2200 DEG C of high temperature, after the completion of special electrode thickness be 1mm, porosity 70%, aperture is 2.5 μm；
(6) it is hydrophobic：Special pole plate after graphitization is put into 45wt% PTFE solution and soaked, after draining, at 380 DEG C
Lower calcination hydrophobic treatment, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Thickness degree is 70 μm of conductive buffer layers.
Embodiment 5：Above-mentioned high power density pemfc stack Special polar board fabrication method：Comprise the following steps：
(1) embryo processed：The short fine T700 of carbon fiber, chopped length are put into dispersion liquid for 4mm and are configured to scattered slurries, is used
5000ml water forms with 12g polyacrylamide stirring and dissolvings, the thick carbon fiber felts of 0.45mm is manufactured paper with pulp into using paper machine, after drying
Wind, be stand-by；
(2) impregnate：By the mixture of acrylic resin and polyester resin, 6000 mesh carbonaceous mesophase spherules, pore creating material, increasing
Strong agent DH-4 by ratio of weight and the number of copies 55:62:1.3:2.5 mixings are configured to maceration extract, by carbon fiber felt made of step (1)
14min in maceration extract is placed on, pulls out and drains, the vacuum precuring 30min under the conditions of 100 DEG C, winds, is stand-by；
(3) cut-parts：The impregnation of carbon fibers felt after step (2) precuring cut using cutting apparatus in blocks, stand-by；
(4) it is molded：Step (3) is cut by the stacking of sheet of carbon fiber felt according to special electrode thickness put and carry out in a mold
Molding, after compression molding formed with point-like flow field face, while the special pole plate with platen surface, there is cathode plate stream
The deep processing of field flow road is 1.2mm, and there is plate flow field flow channel depth to be processed as 0.7mm；
(5) graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Pure argon
Protect in atmosphere, 2200 DEG C of high temperature, after the completion of special electrode thickness be 1.5mm, porosity 68%, aperture is 3 μm；
(6) it is hydrophobic：Special pole plate after graphitization is put into 40wt% PTFE solution and soaked, after draining, at 330 DEG C
Lower calcination hydrophobic treatment, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
(7) coat：Special pole plate after hydrophobic treatment is placed on coating machine, one is coated with the platen surface of special pole plate
Thickness degree is 60 μm of conductive buffer layers.
The special pole plate design parameter of high power density pemfc stack prepared by the various embodiments described above is as follows：
| Bending strength (MPa) | Tensile strength (MPa) | Compression strength (GPa) | |
| Embodiment 1 | 32 | 23 | 1.26 |
| Embodiment 2 | 30.5 | 21.5 | 1.1 |
| Embodiment 3 | 31.5 | 21 | 1.3 |
| Embodiment 4 | 31 | 20.6 | 1.2 |
| Embodiment 5 | 30.2 | 22 | 1.3 |
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, but it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims define are not departed from
Various changes can be made in the form and details for it.
Claims (10)
1. a kind of high power density pemfc stack Special polar board fabrication method, it is characterised in that comprise the following steps：
（1）Embryo processed：The short fibre of carbon fiber is put into dispersion liquid and is configured to scattered slurries, 0.3 ~ 0.5mm is manufactured paper with pulp into using paper machine
Thick carbon fiber felt, wound after drying, be stand-by；
（2）Dipping：Thermosetting resin, carbon dust, pore creating material, reinforcing agent DH-4 are mixed in parts by weight and are configured to impregnate
Liquid, wherein 35 ~ 60 parts of thermosetting resin, 45 ~ 65 parts of carbon dust, 0.5 ~ 1.5 part of pore creating material, 1.5 ~ 2.5 parts of reinforcing agent DH-4, will
Step（1）Manufactured carbon fiber felt is placed on 10 ~ 15min in maceration extract, pulls out and drains, and vacuum is pre- solid under the conditions of 70 ~ 120 DEG C
Change 30min, wind, be stand-by；
（3）Cut-parts：Using cutting apparatus by step（2）Impregnation of carbon fibers felt after precuring cuts in blocks, stand-by；
（4）Shaping：By step（3）Cut the stacking of sheet of carbon fiber felt and put and be molded in a mold, formed after compression molding
With gas stream scene, while the special pole plate with platen surface, the number of plies of stacking sets according to the thickness of special pole plate；
（5）Graphitization：The special pole plate of compression molding is subjected to high temperature graphitization processing, graphitization condition is：Straight argon gas shielded
Atmosphere is interior, 1800 ~ 2300 DEG C of high temperature；
（6）It is hydrophobic：Special pole plate after graphitization is put into 20wt% ~ 50wt% PTFE solution and soaked, after draining, 300 ~
Calcination hydrophobic treatment at 400 DEG C, after the completion of cool down, obtain the special pole plate after hydrophobic treatment；
（7）Coating：Special pole plate after hydrophobic treatment is placed on coating machine, being coated with one layer in the platen surface of special pole plate leads
Electric cushion.
2. high power density pemfc stack Special polar board fabrication method according to claim 1, it is characterised in that：It is described
The short fibre of carbon fiber is that a kind of, staple length is 3 ~ 8 mm in T300 ~ T1000 carbon fibers；The dispersion liquid uses 5000ml water and 5
~ 15g dispersants proportioning stirring and dissolving forms.
3. high power density pemfc stack Special polar board fabrication method according to claim 2, it is characterised in that：It is described
Carbon fiber staple length is 5 mm, and the dispersion liquid is formed using 5000ml water with 10g polyacrylamide stirring and dissolvings.
4. high power density pemfc stack Special polar board fabrication method according to claim 1, it is characterised in that：It is described
Maceration extract is using thermosetting resin, carbon dust, pore creating material, reinforcing agent DH-4 by ratio of weight and the number of copies 44:53:1:2 mix configuration
Form.
5. the high power density pemfc stack Special polar board fabrication method according to claim 1 or 4, it is characterised in that：Institute
Thermosetting resin is stated as mixture one or more of in phenolic resin, epoxy resin, acrylic resin or polyester resin；Institute
Carbon dust is stated as mixture one or more of in XC-72, Ketjen black, carbonaceous mesophase spherules, CNT；The particle diameter of the carbon dust
For 1000 ~ 15000 mesh.
6. high power density pemfc stack Special polar board fabrication method according to claim 1, it is characterised in that：It is described
Step（5）Special electrode thickness after the completion of graphitization is 0.6 ~ 3 mm, and porosity is 55% ~ 85%, and aperture is 0.2 ~ 5 μm.
7. the manufacture method of the special pole plate of high power density pemfc stack according to claim 1, it is characterised in that：Institute
State step（4）Middle gas flowfield includes two kinds of cathode plate flow field and plate flow field.
8. high power density pemfc stack Special polar board fabrication method according to claim 7, it is characterised in that：It is described
The flow channel depth in cathode plate flow field is 0.5 ~ 2 mm, and the flow channel depth in plate flow field is 0.3 ~ 1 mm.
9. high power density pemfc stack Special polar board fabrication method according to claim 1, it is characterised in that：It is described
The shape of gas flowfield includes serpentine flow, DC fields, mixing flow field, point-like flow field.
10. high power density pemfc stack Special polar board fabrication method according to claim 1, it is characterised in that：It is described
Step（7）The thickness of middle conductive buffer layer is 10-100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939627.8A CN105576255B (en) | 2015-12-15 | 2015-12-15 | A kind of high power density pemfc stack Special polar board fabrication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939627.8A CN105576255B (en) | 2015-12-15 | 2015-12-15 | A kind of high power density pemfc stack Special polar board fabrication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105576255A CN105576255A (en) | 2016-05-11 |
| CN105576255B true CN105576255B (en) | 2017-11-21 |
Family
ID=55886148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510939627.8A Active CN105576255B (en) | 2015-12-15 | 2015-12-15 | A kind of high power density pemfc stack Special polar board fabrication method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105576255B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505219B (en) * | 2016-11-11 | 2019-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Vanadium redox flow battery electrode component |
| CN107331875B (en) * | 2017-08-14 | 2023-04-18 | 福建亚南电机有限公司 | Carbon paper hydrophobic treatment equipment |
| CN110993980B (en) * | 2019-11-25 | 2021-06-29 | 深圳市氢雄燃料电池有限公司 | Preparation method of fuel cell polar plate |
| CN110970625B (en) * | 2019-11-25 | 2021-07-09 | 浙江美能电气有限公司 | Carbonized cell panel grid with high flow guiding characteristic and manufacturing method thereof |
| CN114156491B (en) * | 2021-11-10 | 2024-03-22 | 深圳市氢瑞燃料电池科技有限公司 | Preparation method of fuel cell polar plate |
| CN114824312A (en) * | 2022-04-14 | 2022-07-29 | 广东氢发新材料科技有限公司 | Gas diffusion layer with flow channel and preparation method thereof |
| CN116598525A (en) * | 2023-07-18 | 2023-08-15 | 海卓动力(青岛)能源科技有限公司 | Magnetron sputtering bipolar plate-membrane electrode assembly, galvanic pile and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553536A (en) * | 2003-10-20 | 2004-12-08 | 高祥根 | Producing method for fuel battery graphite polar plate |
| CN1765603A (en) * | 2005-11-11 | 2006-05-03 | 浙江大学 | Preparation method of macromolecule resin composite bipolar plate for ion exchange membrane fuel battery |
| CN103531829A (en) * | 2013-10-22 | 2014-01-22 | 江苏中靖新能源科技有限公司 | Hydrogen fuel cell polar plate and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101371337B1 (en) * | 2012-05-16 | 2014-03-10 | 한국과학기술원 | Carbon fabric bipolar plate of fuel cell and method for manufacturing the same |
-
2015
- 2015-12-15 CN CN201510939627.8A patent/CN105576255B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553536A (en) * | 2003-10-20 | 2004-12-08 | 高祥根 | Producing method for fuel battery graphite polar plate |
| CN1765603A (en) * | 2005-11-11 | 2006-05-03 | 浙江大学 | Preparation method of macromolecule resin composite bipolar plate for ion exchange membrane fuel battery |
| CN103531829A (en) * | 2013-10-22 | 2014-01-22 | 江苏中靖新能源科技有限公司 | Hydrogen fuel cell polar plate and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105576255A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105576255B (en) | A kind of high power density pemfc stack Special polar board fabrication method | |
| CN110112425B (en) | Gas diffusion layer of proton exchange membrane fuel cell | |
| CN103556543B (en) | A kind of special high-performance carbon paper and preparation method thereof | |
| CN110993980B (en) | Preparation method of fuel cell polar plate | |
| CN107437628A (en) | A kind of preparation method of fuel cell membrane electrode assembly | |
| CN102484256A (en) | Gas Diffusion Layer Member For Solid Polymer Fuel Cells, And Solid Polymer Fuel Cell | |
| CN101552342B (en) | Method of compositely manufacturing proton exchange membrane fuel cell bipolar plate and membrane electrode assembly | |
| CN113322713A (en) | Preparation method of carbon paper with gradient pore structure | |
| CN106784745A (en) | The sodium-ion battery method for manufacturing electric spinning of cobaltosic oxide carbon nano-fiber | |
| CN107369838B (en) | Hot-pressing-free composite electrode for direct methanol fuel cell and preparation method thereof | |
| CN113555578A (en) | Composite graphite material for fuel cell bipolar plate and preparation method thereof | |
| CN106654295A (en) | Air cathode based on boron-nitrogen-carbon ternary covalent composite material, preparation method for air cathode, and zinc air secondary battery | |
| CN109411769B (en) | Preparation method of long-life carbon fiber paper for fuel cell | |
| Shu et al. | A novel gas diffusion layer and its application to direct methanol fuel cells | |
| CN207558942U (en) | A kind of gas diffusion layer of proton exchange membrane fuel cell carbon paper | |
| CN112038654B (en) | Preparation method of bipolar plate and bipolar plate | |
| CN110247065B (en) | Low-cost continuous industrial production process of gas diffusion layer of fuel cell | |
| CN106684397B (en) | A kind of modified carbon/carbon composite preparation method of graphene oxide | |
| CN105140545A (en) | Preparation technology of composite proton exchange membrane | |
| CN111082069B (en) | Implanted gradient composite electrode, production method and application thereof | |
| CN105428670B (en) | A kind of special pole plate of high power density pemfc stack and preparation method thereof | |
| CN115233498B (en) | Carbon fiber paper for fuel cell and preparation method thereof | |
| US20230416989A1 (en) | Carbon fiber paper, flexible rollable carbon paper made from the carbon fiber base paper and the preparation methods and systems thereof | |
| KR20200040423A (en) | Method of desizing carbon fiber and method of manufacturing gas diffusion layer of fuel cell thereby | |
| CN115117380A (en) | Porous bipolar plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Suzhou City, Jiangsu Province, Yushan Town, Kunshan City, 215313 Yu Yang Road No. 299, room 3 Applicant after: Jiangsu hydrogen power new energy Co., Ltd. Address before: 215313, Jiangsu, Kunshan City, Yushan Town, Yu Yang Road, No. 299, Ping An International Industrial Park A building, Applicant before: Jiangsu Lv Yao fuel cell system Manufacturing Co., Ltd |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |