CN102593470A - Device and method for preparing diffusion layer slurry of proton exchange membrane fuel cell - Google Patents
Device and method for preparing diffusion layer slurry of proton exchange membrane fuel cell Download PDFInfo
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Abstract
The invention relates to a device and method for preparing diffusion layer slurry of a proton exchange membrane fuel cell. The device comprises a power device, a transmission device, a mixing tank, a low-speed mixer, a high-speed disperser, internal cooling modules and the like, wherein the transmission device comprises a hollow low-speed transmission main shaft and a high-speed transmission shaft which is arranged in the hollow main shaft; the transmission device is arranged on the transmission shaft; the low-speed mixer, the high-speed disperser and the internal cooling modules are arranged on a rotary frame and rotate together along with the rotary frame; and meanwhile, the high-speed disperser is driven to rotate at high speed by the high-speed transmission shaft connected to the transmission device; and a circulating water pipeline is introduced by a pipeline shaft arranged in the hollow high-speed transmission shaft to realize an internal cooling function. The device provided by the invention has the internal cooling function during the slurry preparation process for the first time, and thereby, the demulsification problem caused by internal temperature rise in the high-viscosity slurry preparation is solved, and moreover, premixing treatment and high-speed dispersion are integrated into the same device, so that the device has the advantages of high handling capacity, wide applicable viscosity range, high efficiency, low cost, easiness in operation and the like.
Description
Technical field
The present invention relates to a kind of device and method for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip, belong to the fuel cell preparation field.
Background technology
Proton Exchange Membrane Fuel Cells (PEMFC) is a kind of TRT that chemical energy is transformed into electric energy through electrochemical reaction; Have the energy density height, operating temperature is low and stable advantage such as good, be with a wide range of applications in fields such as mobile device, electric automobile (EV), distributed power stations.Its core component membrane electrode three-in-one (MEA) is prepared from through heat pressing process gas diffusion layers, Catalytic Layer and PEM.Gas diffusion layers is made up of conductive porous material, plays multiple actions such as supporting Catalytic Layer, collected current, conduction gas and discharge water, is one of critical component that influences electrode performance, receives in recent years widely and paying close attention to.The factors such as degree of scatter of the preparation technology of diffusion layer, the content of each constituent and diffusion layer slip all directly influence the performance of diffusion layer, and then influence the overall performance of electrode.Therefore, the overall performance of electrode be improved, the preparation problem of high stability diffusion layer slip must be solved.
Disclosed at present patent and document are just mentioned the preparation technology of diffusion layer slip, do not have the report of corresponding large-scale production special equipment.During preparation diffusion layer slip, carbon dust is joined in the aqueous dispersions that contains the PTFE emulsion, make the wetting dispersion of carbon dust through high strength supersonic or shearing force or both synergy.The diameter that this process not only will be dispersed into drop and drop with inconsistent water and PTFE emulsion two mutually and will be with the carbon dust high degree of dispersion in emulsion in certain scope.Mixed process must be at the decentralization that guarantees to improve as much as possible under the condition of breakdown of emulsion not nano-carbon powder.Yet high-intensity ultrasonic or shear the demulsifying phenomenon cause the PTFE emulsion easily, tangible solid-liquid layering appears in slip; But if reduce shear strength; Possibly cause jitter time to prolong on the one hand, dispersion efficiency reduces, and causes that the slip internal temperature raises; Demulsifying phenomenon occurs, possibly cause dispersion effect not reach product requirement on the other hand.The temperature that this just requires when selecting rational shear strength or ultrasound intensity, will control dispersion prevents that temperature is too high.
Gas diffusion layers of Chinese patent CN102024961A one proton exchanging film fuel battery and preparation method thereof is mentioned through supersonic oscillations; The preparation slip; But this kind method is applicable to the configuration of a small amount of slip; Be not suitable for large-scale production, and ultrasonic wave is prone to cause the breakdown of emulsion of PTFE emulsion in practical operation; The preparation method of a Chinese patent CN101038970A water-keeping diffusion layer of high temperature proton exchange film fuel cell points out earlier carbon dust to be mixed with PTFE; Add entry or anhydrous organic solvent then; Under the mixing speed of 1000-5000rpm, stirred 10-24 hour then, obtain the diffusion layer slip.But this kind method only is applicable to the configuration of a small amount of slip, and dispersion efficiency is low, and mixing time is long, and long-time high-speed stirred slip is prone to obvious temperature rise, is not suitable for a large amount of (high efficient mixed of >=20L) diffusion layer slip; The preparation method of Chinese patent CN101022164A fuel battery gas diffusion layer mixes in proportion carbon black powders, distilled water, dispersant Tween-60 earlier; Evenly add the PTFE emulsion in the above-mentioned carbon black powders dispersion again; Continue to mix 0.5-3 hour, mixed method adopts ultrasonic wave, mechanical high-speed to shear.But carbon dust need divide 10 addings when this kind method first step prepared the carbon black powders dispersion; Can not realize a premixed of carbon dust; The premixed process need adds dispersant, has increased cost, and whole dispersion process is isolated is to carry out in two steps; Dispersion efficiency is low, and ultrasonic wave is prone to cause the PTFE emulsion breaking in the practical operation simultaneously.
To the high efficient mixed of diffusion layer slip wherein important problem be to be uniformly dispersed, good stability guarantees its not breakdown of emulsion again.So the design to blender has proposed very high request, also need simultaneously the temperature of whipping process is controlled accurately.Existing stirring equipment adopts the chuck cooling mostly; (high efficient mixed of >=20L) diffusion layer slip is disperseed but for a large amount of; Because slurry viscosity is high, depend merely on the chuck cooling and very easily cause slip too high away from chuck wall central portion temp, have a strong impact on the effect of homogenate; Even cause serious breakdown of emulsion, cause slurry to be scrapped.So to the high efficient mixed of a large amount of diffusion layer slips, present homogenate equipment all can't satisfy, and is badly in need of the homogenate equipment of special-purpose efficient dispersion of development and cooling.
Summary of the invention
The technical problem underlying that the present invention will solve is: provides a kind of and had inner refrigerating function, high speed dispersion device installation site is adjustable, integrate premixed and high speed dispersion, but the apparatus and method of scale preparation high viscosity Proton Exchange Membrane Fuel Cells diffusion layer slip.Have advantages such as mixing efficiency height, low, easy to operate, the anti-breakdown of emulsion of cost, can effectively prevent material the depositional phenomenon of Separation of Solid and Liquid in use to occur, solved the problem that exists in the present production reality.
The present invention realizes through following technical scheme:
A kind of device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip comprises power set, transmission device, agitator 3, passes through low-speed agitator 4, the high speed dispersion device 5 that transmission device drives by power set; It is characterized in that; Described power set comprise that low speed disperses motor 101, high speed dispersion motor 102 and automatic lifting motor 103; Described transmission device comprises train 205, power transmission shaft and rotating turret 204; Power transmission shaft comprises low speed transmission main shaft 201 hollow, that disperse motor 101 to drive by low speed; Place in the low speed transmission main shaft 201 of hollow, the high-speed drive shaft 202 that drives by high speed dispersion motor 102 and the pipeline axle 203 that places hollows in the high-speed drive shaft 202, above-mentioned three inside are nested fixing through bearing, are fixed on the frame 7 through bearing pedestal; The cylinder rotating turret 204 of a hollow is mounted on the main shaft 201 through key, rotates together with main shaft 201;
Be provided with two slowly run a 4a, 4b in the described rotating turret 204; Rotating turret and vertical with the rotating turret lower surface is passed in its lower end; And two mounting points and center, the center of circle, lower surface symmetry; Mounting points is 1/8d-1/4d apart from the center of circle, and the lower end that preferred 1/6d, two low-speed agitators 4 are installed in rotation axis 4a, 4b is stretched in the agitator 3; The upper end of rotation axis 4a, 4b is passed the rotating turret upper surface and is meshed through pinion and the gear wheel 205 that is fixed on the frame; Gearratio is 1: 1-1: 4; Preferred 1: 2, rotation axis 4a, 4b drove two low-speed agitators 4 and when rotating with rotating turret 204, realize the rotation of self;
Also be provided with two high speed rotating axle 5a, 5bs vertical in the described rotating turret 204 with rotating turret 204 lower surfaces; Its two mounting points and center, the center of circle, lower surface symmetry; Mounting points is 1/6d-3/10d apart from the center of circle, preferred 1/4d, and high-speed drive shaft mounting points line is vertical with low-speed shaft mounting points line; The top of high speed rotating axle 5a, 5b is equipped with driven pulley 206, and driven pulley is connected with driving pulley 208 on being installed in high-speed drive shaft 202 through synchronous band;
The lower end of high speed rotating axle 5a, 5b is respectively installed a disperser 5 and is placed agitator 3; High speed dispersion device 5 rotates with rotating turret 204 under the drive of high speed rotating axle 5a, 5b; Under high-speed drive shaft 202 drives, realize the rotation of self simultaneously, rotating speed is between 0-7500rpm;
Have an inner cooling package 6 in the agitator 3 at least, described inner cooling package 6 comprises coiled heat exchanger tube and connecting line 8 thereof, and inner cooling package 6 connects on the lower surface be vertically mounted on rotating turret 204 and with rotating turret through bolt and rotates; Mounting points is 3/10d-9/20d apart from the center, lower surface; Preferred 2/5d is installed in 45 ° of-75 ° of directions of two low-speed shaft mounting points lines, preferred 60 °; The flow of coiled heat exchanger tube is 100-150L/h, preferred 120L/h; Connecting line 8 is connected to rotation adapter 9 through the pipeline axle 203 of hollow, connects the outer loop water-bath again;
The jacket type structure of described agitator 3 for having the external refrigeration function, agitator 3 is realized automatic lifting through the worm gear screw mandrel 10 that automatic lifting motor 103 drives, the design capacity of agitator is 10-50L;
Wherein d is rotating turret 204 lower surface diameters.
Described high speed dispersion blender 5 can be selected suitable setting height(from bottom) according to the slip treating capacity, and high speed dispersion device 5 is installed with different height in agitator 3, thereby realizes the abundant stirring of differing heights slip.The preferred Wheel-type structure of high speed dispersion type formula; Low-speed agitator 4 can be frame, vane type or fried dough twist frame, and preferred fried dough twist frame is realized the abundant mixing of slip;
The present invention also provides a kind of method for preparing proton membrane fuel battery diffusion layer slip based on said apparatus, and said method comprises the steps:
1) water and polytetrafluoroethylene (PTFE) emulsion are joined in the agitator according to proportioning, the mass ratio of water and PTFE emulsion is 80: (1～5), preferred 80: 3; The solid content of PTFE emulsion is 60 ± 2wt%, and surface-active contents is 3.6-7wt%, pH value 8-10; Viscosity is 20-35Mpas, opens low speed and disperses motor 101 and high speed dispersion motor 102, and the rotating speed of regulating low speed dispersion motor 101 is 4-8rpm; Preferred 5rpm, the rotating speed of high speed dispersion motor 102 is 400-500rpm, preferred 500rpm; Mix 4-7min, preferred 5min realizes the premixed of water and PTFE emulsion;
2) carbon dust is added in the mixed liquor of water and PTFE emulsion of step 1), the amount of carbon dust is the 1-20%wt of whole system, preferred 6wt%; The open vacuum pump is arranged on 10-40 ℃, preferred 20 ℃ with the temperature of circulator bath; The rotating speed that increases low speed dispersion motor 101 is 10-15rpm, and preferred 10rpm keeps high speed dispersion motor 102 rotating speeds constant; Mix 15-20min, preferred 15min realizes the wetting and premixed of carbon dust;
3) rotating speed of adjusting low speed dispersion motor 101 is 20-30rpm, preferred 30rpm, and high speed dispersion motor 102 rotating speeds are 2000-5000rpm, preferred 3500rpm mixed 1.5-2 hour, made proton membrane fuel battery diffusion layer slip.
Beneficial effect
The present invention adopts low-speed agitator and high speed dispersion blender simultaneously, is aided with inside and outside circulation cooling, reaches shearing, dispersion and well-mixed effect.
The invention has the advantages that, first that high speed dispersion and inner cooling is mutually integrated, provide a kind of premixed and high degree of dispersion of collecting in same equipment, but the apparatus and method of scale preparation high viscosity Proton Exchange Membrane Fuel Cells diffusion layer slip.With respect to prior art, at first need not the intensified by ultrasonic wave assembly, avoided the breakdown of emulsion problem that intensified by ultrasonic wave brought; Next provides one group of mixing mixing component with high speed, middling speed and three kinds of rotating speeds of low speed; Various mixing mixing components can be around an axle rotation certainly; Can revolve round the sun around central shaft again; Mixing efficiency is high, through regulating the installation site of two high speed dispersion assemblies, can effectively prevent the too high breakdown of emulsion problem that causes of partial cut rate simultaneously; At last,, possess inner cooling of slip and outer loop refrigerating function simultaneously, solved the temperature control problem when preparing a large amount of high viscosity slip, be with a wide range of applications with respect to prior art.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 Proton Exchange Membrane Fuel Cells diffusion layer slip preparation facilities forward cutaway view
Wherein: 101-low speed disperses motor, 102-high speed dispersion motor, 103-automatic lifting motor, 201-low speed transmission main shaft; The 202-high-speed drive shaft, 203-pipeline axle, 204-rotating turret, 205-gear wheel; 207-driving pulley, 3-agitator, 4-low-speed agitator, 4a, the 4b-axle that slowly runs; The 7-frame, 9-rotates adapter, 10-worm gear screw mandrel.
Cutaway view is looked on Fig. 2 Proton Exchange Membrane Fuel Cells diffusion layer slip preparation facilities right side
Wherein: 201-low speed transmission main shaft, 202-high-speed drive shaft, 203-pipeline axle, 204-rotating turret; The 206-driven pulley, 208-driving pulley, 3-agitator, 5-high speed dispersion device; 5a, 5b-high speed rotating axle, the inner cooling package of 6-, 8-heat exchanger tube connecting line, 9-rotates adapter.
Each assembly scheme of installation of Fig. 3 Proton Exchange Membrane Fuel Cells diffusion layer slip preparation facilities
Wherein: 4-low-speed agitator, 5-high speed dispersion device, the inner cooling package of 6-, 204-rotating turret.
The inner cooling package sketch map of Fig. 4 Proton Exchange Membrane Fuel Cells diffusion layer slip preparation facilities
Wherein: the inner cooling package of 6-, 6a-water inlet, 6b-delivery port.
Fig. 5 embodiment one slip solid content variation diagram
Fig. 6 embodiment two slip solid content variation diagrams
Embodiment
For let the object of the invention, feature and advantage can be more obviously understandable, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to following embodiment.
Embodiment one
Two rotation axiss of low-speed agitator are installed in apart from the both sides of rotating turret center 1/6d symmetrically; Rotation axis passes rotating turret through pinion and the gear wheel engagement that is fixed on the frame; Gearratio is 1: 2, and the pattern of low-speed agitator is the fried dough twist frame, can stir slip to greatest extent.Two rotation axiss of high speed dispersion device are installed in apart from the both sides of rotating turret center 1/4d symmetrically, and a line of centres is vertical with slowly running, and the pattern of disperser is a Wheel-type, and the vertical setting height(from bottom) on rotation axis differs 10cm.Two groups of inner cooling packages are installed, are installed in symmetrically apart from 2/5d place, rotating turret center, be wired to 60 ° with the axle that slowly runs, heat exchanger tube is a coiled, flow 120L/h.Agitator is a jacket type structure, and volume is 30L, and the slip treating capacity is 20L.
Start the automatic lifting motor, fall agitator, after the water of adding 16.8kg and the PTFE emulsion of 630g; Rise agitator; Open low speed and disperse motor and high speed dispersion motor speed to be respectively 5rpm and 500rpm, disperse 5min, realize the premixed of water and PTFE emulsion.Then in the aqueous dispersions with the disposable adding PTFE of the carbon dust of 1092g, ON cycle water-bath and inner cooling package, it is 20 ℃ that the circulator bath temperature is set; Increasing low speed, to disperse motor speed be 10rpm, keeps the high speed dispersion motor speed constant, carbon dust wetting with premixed 15min after; Increasing low speed dispersion motor speed is 30rpm; The high speed dispersion motor speed is 3500rpm, mixes 2 hours, makes the diffusion layer slip.Slip is placed on leaves standstill 24 hours in the graduated cylinder, graduated cylinder is evenly equipped with 4 sample taps in the side, and a sample tap is arranged at the bottom.Measure the solid content of the slip of different sample taps, the difference of finding solid content within ± 3%, the good stability of slip.The result is as shown in Figure 5 for the slip solid content.Slurry temperature maintains between 25-26 ℃ in the whole dispersion process.
As a kind of conversion of present embodiment, according to needs of production, mixed process can be carried out under vacuum environment, is negative pressure in the agitator promptly.
Embodiment two
Two rotation axiss of low-speed agitator are installed in apart from the both sides of rotating turret center 1/6d symmetrically; Rotation axis passes rotating turret through pinion and the gear wheel engagement that is fixed on the frame; Gearratio is 1: 2, and the pattern of low-speed agitator is the fried dough twist frame, can stir slip to greatest extent.Two rotation axiss of high speed dispersion device are installed in apart from the both sides of rotating turret center 1/4d symmetrically, and a line of centres is vertical with slowly running, and the pattern of disperser is a Wheel-type, and the vertical setting height(from bottom) on rotation axis differs 10cm.Two groups of inner cooling packages are installed, are installed in symmetrically apart from 2/5d place, rotating turret center, be wired to 60 ° with the axle that slowly runs, heat exchanger tube is a coiled, flow 120L/h.Agitator is a jacket type structure, and volume is 40L, and the slip treating capacity is 30L.
Start the automatic lifting motor, fall agitator, after the water of adding 25.2kg and the PTFE emulsion of 945g, rise agitator, open low speed and disperse motor and high speed dispersion motor speed to be respectively 5rpm and 500rpm, disperse the premixed of 5min realization water and PTFE emulsion.Then in the aqueous dispersions with the disposable adding PTFE of the carbon dust of 1638g, ON cycle water-bath and inner cooling package, it is 20 ℃ that the circulator bath temperature is set; Increasing low speed, to disperse motor speed be 10rpm, keeps the high speed dispersion motor speed constant, carbon dust wetting with premixed 15min after; Increasing low speed dispersion motor speed is 30rpm; The high speed dispersion motor speed is 3500rpm, mixes 2 hours, makes the diffusion layer slip.Slip is placed on leaves standstill 24 hours in the graduated cylinder, graduated cylinder is evenly equipped with 4 sample taps in the side, and a sample tap is arranged at the bottom.Measure the solid content of the slip of different sample taps, the difference of finding solid content within ± 3%, the good stability of slip.The result is as shown in Figure 6 for the slip solid content.Slurry temperature maintains between 25-26 ℃ in the whole dispersion process.
As a kind of conversion of present embodiment, according to needs of production, mixed process can be carried out under vacuum environment, is negative pressure in the agitator promptly.
Claims (7)
1. a device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip comprises power set, transmission device, agitator 3, passes through low-speed agitator 4, the high speed dispersion device 5 that transmission device drives by power set; It is characterized in that; Described power set comprise that low speed disperses motor 101, high speed dispersion motor 102 and automatic lifting motor 103; Described transmission device comprises train 205, power transmission shaft and rotating turret 204; Power transmission shaft comprises low speed transmission main shaft 201 hollow, that disperse motor 101 to drive by low speed; Place in the low speed transmission main shaft 201 of hollow, the high-speed drive shaft 202 that drives by high speed dispersion motor 102 and the pipeline axle 203 that places hollows in the high-speed drive shaft 202, above-mentioned three inside are nested fixing through bearing, are fixed on the frame 7 through bearing pedestal; The cylinder rotating turret 204 of a hollow is mounted on the main shaft 201 through key, rotates together with main shaft 201;
Be provided with two slowly run a 4a, 4b in the described rotating turret 204; Rotating turret and vertical with the rotating turret lower surface is passed in its lower end; Two mounting points and center, the center of circle, lower surface symmetry; Mounting points is 1/8d-1/4d apart from the center of circle, and the lower end that two low-speed agitators 4 are installed in rotation axis 4a, 4b is stretched in the agitator 3; The upper end of rotation axis 4a, 4b is passed the rotating turret upper surface and is meshed through pinion and the gear wheel 205 that is fixed on the frame; Gearratio is 1: 1-1: 4; Preferred 1: 2, rotation axis 4a, 4b drove two low-speed agitators 4 and when rotating with rotating turret 204, realize the rotation of self;
Also be provided with two high speed rotating axle 5a, 5bs vertical in the described rotating turret 204 with rotating turret 204 lower surfaces; Its two mounting points and center, the center of circle, lower surface symmetry; Mounting points is 1/6d-3/10d apart from the center of circle; High-speed drive shaft mounting points line is vertical with low-speed shaft mounting points line, and the top of high speed rotating axle 5a, 5b is equipped with driven pulley 206, and driven pulley is connected with driving pulley 208 on being installed in high-speed drive shaft 202 through synchronous band; The lower end of high speed rotating axle 5a, 5b is respectively installed a disperser 5 and is placed agitator 3; High speed dispersion device 5 rotates with rotating turret 204 under the drive of high speed rotating axle 5a, 5b; Under high-speed drive shaft 202 drives, realize the rotation of self simultaneously, rotating speed is between 0-7500rpm;
Has an inner cooling package 6 in the agitator 3 at least; Described inner cooling package 6 comprises coiled heat exchanger tube and connecting line 8 thereof; Inner cooling package 6 connects on the lower surface that is vertically mounted on rotating turret 204 and with rotating turret through bolt and rotates; Mounting points is 3/10d-9/20d apart from the center of circle, lower surface, is installed in 45 ° of-75 ° of directions of two low-speed shaft mounting points lines, and the flow of coiled heat exchanger tube is 100-150L/h; Connecting line 8 is connected to rotation adapter 9 through the pipeline axle 203 of hollow, connects the outer loop water-bath again;
The jacket type structure of described agitator 3 for having the external refrigeration function, agitator 3 is realized automatic lifting through the worm gear screw mandrel 10 that automatic lifting motor 103 drives, the design capacity of agitator is 10-50L; Wherein d is rotating turret 204 lower surface diameters.
2. a device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip is characterized in that, described two high speed dispersion devices 5 are installed with different vertical heights in agitator 3.
3. a device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip is characterized in that, described high speed dispersion device is the Wheel-type structure; Low-speed agitator 4 is a kind of in frame, vane type, the fried dough twist frame.
4. a device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip is characterized in that, the mounting points of described slowly run a 4a, 4b is center of circle 1/6d apart from the rotating turret lower surface; The mounting points of high speed rotating axle 5a, 5b is center of circle 1/4d apart from the rotating turret lower surface; The mounting points rotating turret lower surface center of circle 2/5d of inner cooling package 6 is installed in 60 ° of directions of two low-speed shaft mounting points lines.
5. a device for preparing Proton Exchange Membrane Fuel Cells diffusion layer slip is characterized in that, the flow of described coiled heat exchanger tube is 120L/h.
6. method for preparing proton membrane fuel battery diffusion layer slip based on the device of claim 1, said method comprises the steps:
1) water and polytetrafluoroethylene (PTFE) emulsion are joined in the agitator according to proportioning, the mass ratio of water and PTFE emulsion is 80: (1～5); The solid content of PTFE emulsion is 60 ± 2wt%, and surface-active contents is 3.6-7wt%, pH value 8-10; Viscosity is 20-35Mpas; Open low speed and disperse motor 101 and high speed dispersion motor 102, the rotating speed of regulating low speed dispersion motor 101 is 4-8rpm, and the rotating speed of high speed dispersion motor 102 is 400-500rpm; Mix 4-7min, realize the premixed of water and PTFE emulsion;
2) carbon dust is added in the mixed liquor of water and PTFE emulsion of step 1), the amount of carbon dust is the 1-20%wt of whole system, preferred 6wt%; The open vacuum pump is arranged on 10-40 ℃, preferred 20 ℃ with the temperature of circulator bath; The rotating speed that increases low speed dispersion motor 101 is 10-15rpm; Keep high speed dispersion motor 102 rotating speeds constant, mix 15-20min, realize the wetting and premixed of carbon dust;
3) rotating speed of adjusting low speed dispersion motor 101 is 20-30rpm, and high speed dispersion motor 102 rotating speeds are 2000-5000rpm, mix 1.5-2 hour, make proton membrane fuel battery diffusion layer slip.
7. method for preparing proton membrane fuel battery diffusion layer slip based on the device of claim 1; Said method step 1) in: it is 5rpm that low speed disperses the rotating speed of motor 101; The rotating speed of high speed dispersion motor 102 is 500rpm, and water and PTFE emulsion were with 80: 3 mass ratio mixing 5min; Step 2) rotating speed of low speed dispersion motor 101 is 10rpm in, and incorporation time is 15min; The rotating speed of low speed dispersion motor 101 is 30rpm in the step 3), and high speed dispersion motor 102 rotating speeds are 3500rpm.
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| CN2012100537309A CN102593470A (en) | 2012-03-01 | 2012-03-01 | Device and method for preparing diffusion layer slurry of proton exchange membrane fuel cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716342A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Fuel cell catalyst slurry and application thereof |
| CN105749794A (en) * | 2016-03-31 | 2016-07-13 | 柳州市豪杰特化工机械有限责任公司 | Vacuum insulation stirring machine with heating and cooling functions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6465041B1 (en) * | 2001-12-19 | 2002-10-15 | 3M Innovative Properties Company | Method of making gas diffusion layers for electrochemical cells |
| CN101022164A (en) * | 2007-01-19 | 2007-08-22 | 南京大学 | Method for producing fuel battery gas diffusion layer |
| CN201128726Y (en) * | 2007-11-23 | 2008-10-08 | 江苏梅兰化工有限公司 | Difluoroethane reactor with mixing function |
| CN101325259A (en) * | 2007-06-13 | 2008-12-17 | 中国科学院大连化学物理研究所 | Method for preparing gaseous diffusion layer of fuel battery with proton exchange film |
| CN202129043U (en) * | 2011-07-08 | 2012-02-01 | 浙江长城减速机有限公司 | Double planetary mixer with ultrasonic reinforced mixing device |
-
2012
- 2012-03-01 CN CN2012100537309A patent/CN102593470A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6465041B1 (en) * | 2001-12-19 | 2002-10-15 | 3M Innovative Properties Company | Method of making gas diffusion layers for electrochemical cells |
| CN101022164A (en) * | 2007-01-19 | 2007-08-22 | 南京大学 | Method for producing fuel battery gas diffusion layer |
| CN101325259A (en) * | 2007-06-13 | 2008-12-17 | 中国科学院大连化学物理研究所 | Method for preparing gaseous diffusion layer of fuel battery with proton exchange film |
| CN201128726Y (en) * | 2007-11-23 | 2008-10-08 | 江苏梅兰化工有限公司 | Difluoroethane reactor with mixing function |
| CN202129043U (en) * | 2011-07-08 | 2012-02-01 | 浙江长城减速机有限公司 | Double planetary mixer with ultrasonic reinforced mixing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716342A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Fuel cell catalyst slurry and application thereof |
| CN105749794A (en) * | 2016-03-31 | 2016-07-13 | 柳州市豪杰特化工机械有限责任公司 | Vacuum insulation stirring machine with heating and cooling functions |
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Application publication date: 20120718 |