CN116387581B - CCM membrane electrode assembly process and assembly equipment - Google Patents

CCM membrane electrode assembly process and assembly equipment Download PDF

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Publication number
CN116387581B
CN116387581B CN202310630194.2A CN202310630194A CN116387581B CN 116387581 B CN116387581 B CN 116387581B CN 202310630194 A CN202310630194 A CN 202310630194A CN 116387581 B CN116387581 B CN 116387581B
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ccm
membrane
frame
ccm1
membrane electrode
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CN116387581A (en
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管春光
杨舜文
王力
斯文·乌尔赖希
袁阳洋
邸志岗
杨锦夫
亚伦·哈比施
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Shanghai Yunliang New Energy Technology Co ltd
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Shanghai Yunliang New Energy Technology Co ltd
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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
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • 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
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • 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
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0286—Processes for forming seals
    • 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

Abstract

The invention provides a CCM membrane electrode assembly process and assembly equipment, and belongs to the technical field of hydrogen fuel cell manufacturing. The process comprises the following steps: generating a CCM into a plane, and neutralizing static electricity in the expanding process; performing sizing cutting on the CCM through a laser cutting process, wherein the CCM is sucked on a flat plate in vacuum during cutting; coating glue on the pre-cut frame, and attaching the pre-cut frame to the CCM through an adsorption mechanism; applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming a split-charging semi-finished product of the frame and the CCM; and stripping the split-charging semi-finished products of the frame and the CCM from the back membrane. The invention can solve the curling problem of the membrane CCM, the membrane electrode manufacturing size is more stable, the CCM packaging utilization is improved, and the improvement of the membrane electrode mass production is facilitated.

Description

CCM membrane electrode assembly process and assembly equipment
Technical Field
The invention relates to the technical field of hydrogen fuel cell manufacturing, in particular to a CCM membrane electrode assembly process and assembly equipment.
Background
CCM (catalyst coated proton exchange membrane) is a catalyst/proton exchange membrane module, abbreviated as CCM (catalyst coated membrane), prepared by coating a fuel cell catalyst on both sides of a proton exchange membrane. At present, the thickness of a proton exchange membrane PEM (proton exchange membrane) used by most membrane electrodes of hydrogen fuel cells is 15 mu m, and along with further improvement of the performance requirement of the membrane electrodes and further improvement of the utilization rate requirement of CCM in membrane electrode packaging, a new membrane electrode packaging process needs to be developed to solve the problems of CCM deformation and curling, bubbles in a glue area, unstable later dimension (shrinkage) of the membrane electrodes, low utilization rate of CCM materials, long packaging beat and the like in the current membrane electrode packaging.
The Chinese patent application CN 109390610B discloses a fuel cell membrane electrode production packaging process, which comprises the following steps: (a) Selecting a fixed column for the alignment device and adjusting the position of the fixed column; (b) Gradually mounting each layer of the cut frames on an alignment device in sequence, and flattening and compacting the sealed frames on one side to be heat-sealed by using an adjustable pressing plate; (c) Using a heat sealing system to carry out lateral heat sealing treatment, and automatically fixing and aligning the treated sealing frame to obtain a pretreated membrane electrode sealing frame; (d) Flattening the pretreated membrane electrode sealing frame on a clean protection gasket, opening two layers of sealing frames, and blowing clean by using air; (e) Putting a proton exchange membrane between the two layers of frames, closing the two layers of sealing frames, and completing alignment of the sealing frames; (f) The position of the membrane electrode in the sealing frame is adjusted to center the membrane electrode, and the sealing frame is slightly moved to change the position relationship between the proton exchange membrane and the sealing frame; (g) Pressing the whole three layers into an upper protective layer and a lower protective layer, and entering a hot pressing system for hot pressing shaping; the alignment device comprises a fixing assembly and a sliding positioning assembly, wherein the fixing assembly comprises a base plate, slotted holes are formed in two ends of the base plate, and fixing columns are inserted into the slotted holes; the end part of the base plate is provided with a pressing plate base, and the pressing plate base is provided with an adjustable pressing plate; the sliding positioning assembly comprises a sliding positioning shaft and a sliding block, wherein the shaft part of the sliding positioning shaft penetrates through a shaft hole on the sliding block, rolling shafts at two ends of the sliding positioning shaft slide in the sinking area of the base plate, and fixing columns are arranged on the sliding block. According to the invention, the membrane electrode sealing frame is preprocessed by using the heat sealing system, and the upper and lower frames are not required to be aligned, so that the processing efficiency and accuracy are greatly improved. The membrane electrode production and packaging process provided by the invention is simple and feasible, the operation difficulty of the membrane electrode assembly process is greatly reduced, and the technical level requirements of production enterprises on membrane electrode assembly workers are reduced.
The Chinese patent application publication CN 112531183B discloses a membrane electrode sealing assembly, wherein the area of a diffusion layer in the membrane electrode sealing assembly is larger than the area of a through slot in a sealing frame, so that a layer-by-layer stacking method can be adopted, and the five layers can be integrally and primarily positioned by matching with a glue surface layer on the sealing frame, in the process, the positions between the layers are primarily limited in the stacking process of the five layers by limiting through holes on the sealing frame and a catalytic electrode layer, and the later transportation and packaging process are facilitated. The invention also discloses a packaging process of the membrane electrode sealing assembly, which is provided with the clamp with the positioning column, and can realize the problem that the membrane electrode sealing assembly cannot be accurately positioned and produced in actual packaging production on the premise of not needing complex procedures of sticking adhesive tapes, thereby saving the assembly time and the workload of the membrane electrode sealing assembly; meanwhile, a welding packaging process is adopted, so that the membrane electrode sealing assembly with the clamp can be directly transported and packaged, and the adverse phenomena of dislocation, loosening and the like in the process of carrying the membrane electrode sealing assembly in the prior art in the conventional hot-pressing packaging technology are solved, and the hot-pressing packaging effect is further influenced; meanwhile, in the process, the primary welding line is fixed at a distance from the periphery of the diffusion layer to the membrane electrode sealing component by using laser welding, and the sealing effect of the laser welding is far greater than that of the heat sealing effect, so that the pre-welding greatly improves the sealing effect of the electrode, can strengthen the positioning effect of the membrane electrode sealing component on a clamp, avoids the deflection of the diffusion layer, and then uses the scanning type surface contact welding of ultrasonic linear scanning welding to finish the sealing of the membrane electrode sealing component without the phenomena of influencing the performance, such as bubbles, wrinkles and the like, thereby having better encapsulation effect; in the ultrasonic linear scanning welding process of the membrane electrode sealing assembly, two groups of welding heads are adopted to sequentially weld the first sealing area and the second sealing area separately, so that the phenomenon that the diffusion layer is extruded during one-time ultrasonic scanning is avoided, and meanwhile, the phenomenon that the diffusion layer is damaged due to repeated sealing extrusion at the overlapped part of the diffusion layer and the sealing frame is avoided.
The prior art has at least the following disadvantages:
1. the traditional CCM is too thin in thickness, so that the CCM is inconvenient to feed;
2. the method is not suitable for the assembly of the membrane electrode of the ultra-thin CCM, and is easy to curl, foam and deform in the assembly process;
3. when in separation, the control is not carried out, the separation is difficult, or the tearing is easy to occur;
4. the problem that the cutting burr direction of the circular knife machine is uncontrollable;
5. and (3) carrying out integral piece rejection on the poor Membrane Electrode Frame Assembly (MEFA), and wasting materials.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a CCM membrane electrode assembly process and assembly equipment, wherein the process comprises the following steps: s1: generating a plane with CCM (CCM, catalyst coated membrane) and neutralizing static electricity during the expanding process; s2: performing sizing cutting on the CCM through a laser cutting process, wherein the CCM is sucked on a flat plate in vacuum during cutting; s3: coating glue on the pre-cut frame, and attaching the pre-cut frame to the CCM through an adsorption mechanism; s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming a split-charging semi-finished product of the frame and the CCM; s5: and stripping the split-charging semi-finished products of the frame and the CCM from the back membrane. The invention can solve the problem of the curling of the membrane CCM, the membrane electrode manufacturing size is more stable, the CCM packaging utilization is improved, the CCM utilization rate can be improved to 100% in the feeding direction, the 0 loss is realized, the improvement of the membrane electrode mass production is facilitated, and the estimated single-chip beat is within 10 seconds.
The invention provides a CCM membrane electrode assembly process, which comprises the following steps:
s0: preparing a CCM, wherein a layer of back membrane is reserved at the outermost end of an Anode Catalyst Layer (ACL) or a Cathode Catalyst Layer (CCL) in the process of preparing the CCM, so as to form a CCM formed by stacking a cathode back membrane, a cathode catalyst layer, a proton exchange membrane and an anode catalyst layer, or a CCM formed by stacking a cathode catalyst layer, a proton exchange membrane, an anode catalyst layer and an anode back membrane; the backing film is also known as a process film or backing film;
s1: generating a CCM into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM through a laser cutting process, wherein the CCM is sucked on a flat plate in vacuum during cutting; vacuum sucking is to suck the proton exchange membrane with the catalyst coating on a flat plate under the action of vacuum negative pressure;
s3: coating glue on the pre-cut frame, and attaching the pre-cut frame to the CCM through an adsorption mechanism pair so as to ensure the subsequent hot-pressing effect;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming a split-charging semi-finished product of the frame and the CCM;
s5: and stripping the split-charging semi-finished products of the frame and the CCM from the back membrane.
Preferably, in the preparation of the CCM, a backing film is retained at the outermost end of the anode catalyst layer.
Preferably, the CCM is developed into a plane by tension rollers.
Preferably, the ion wind is generated by an ion wind generating device to neutralize static electricity during the developing process.
Preferably, in the laser cutting, the CCM is fully cut and the back film is half cut by setting the laser energy, speed and cutting frequency, the full cut means complete cutting, that is, cutting through, the half cut means not complete cutting, and only 50% cutting is performed.
Preferably, the CCM is aligned with the frame through a visual guiding technology during pasting, the CCM is recognized through a visual system, the edge of the frame is taken as a reference, and a software calculation driving servo executing mechanism is used for aligning the edges of the two CCMs, so that the position accuracy of the CCM and the frame is ensured.
Preferably, the method further comprises the step of identifying the defect of the CCM in the step S1 through intelligent defect identification between the step S1 and the step S2.
Preferably, in step S2, CCMs with defective CCM labels identified are rejected, without cutting, so as to avoid bringing the defective CCMs into the packaging process.
Preferably, when the split-charging semi-finished products of the frame and the CCM are peeled off from the back film, the frame is directly torn by being grasped by a mechanical arm.
Preferably, in the process of tearing by the manipulator, the tearing angle and speed are controlled, and the angle and speed are mainly realized through the parameter setting of the manipulator, so that the stripping angle and speed required by the process are obtained. The angle is controlled between 0 and 90 degrees, the smaller the angle, the better the peeling effect, the angle being related to the height between the clamping jaw and the back film.
Preferably, the contact angle of the back film surface is monitored during the manipulator tearing process.
The tearing angle and the tearing speed are controlled, and the contact angle of the surface of the back film is monitored, so that the catalyst can be prevented from being remained on the back film to cause separation failure.
Preferably, in step S5, an auxiliary roller is added between the CCM and the back membrane to assist in separating the CCM from the back membrane, and in the moving process of the auxiliary roller, separation of the CCM and the back membrane is achieved, so that the CCM can be separated from the back membrane more quickly, and damage to the surface of the CCM can be avoided to the greatest extent by taking rolling friction into consideration by using an auxiliary roller, and the surface roughness is required to be less than 0.8.
Preferably, in step S4, vacuum adsorption is performed during the hot pressing process, and a glue guiding groove is formed on the hot press platform, so as to prevent CCM pollution caused by flowing to an adjacent area before glue is solidified.
Preferably, in the process of step S5, it is detected whether a catalyst coating remains on the back film, and if so, marking is performed and rejection is notified in the defective product discharge process.
Preferably, in step S2, the laser kerf is monitored, and if the laser kerf depth is detected to be smaller than the set value, the laser parameters are corrected.
The invention provides a CCM membrane electrode assembly device, which uses any CCM membrane electrode assembly process to assemble membrane electrodes, and comprises the following stations in sequence:
the CCM unreeling station is used for completely flattening the CCM and neutralizing static electricity in the unreeling process;
the CCM cutting station is used for implementing sizing cutting on the CCM through a laser cutting process, and the CCM is sucked on a flat plate in vacuum during cutting;
the CCM mounting station is used for coating glue on the pre-cut frame and mounting the frame on the CCM through the adsorption mechanism;
the CCM hot-pressing station applies pressure to the glue bonding area on the CCM through a hot press and heats the glue, so that the glue is fully solidified to form bonding force, and a split-charging semi-finished product of the frame and the CCM is formed;
and a CCM separating station for stripping the frame and the split-charging semi-finished product of the CCM from the back membrane.
Preferably, the CCM membrane electrode assembly device further comprises a CCM defect identification detection station which is arranged between the CCM unreeling station and the CCM cutting station, and is used for carrying out intelligent defect identification on the CCM and identification.
Preferably, the CCM membrane electrode assembly equipment is further provided with a process detection station, and the process detection station is used for detecting whether a catalyst coating is remained on the back membrane after the separation of the CCM separation station, if so, marking is carried out, and the rejection is notified in a defective product discharging process, so that the product with serious catalyst loss is prevented from flowing out.
Preferably, the process detection station also monitors the laser cutting mark on the CCM cutting station, and if the laser cutting mark depth is detected to be smaller than the set value, the laser parameter is corrected to prevent the CCM from being continuously cut.
The setting position of the process detection station is not limited, and the two detection stations can be planned at the same station or can be separately set. The coating film defect mark detection signal is connected with the cutting mechanism, and the process defect is connected with the whole line fault alarm system.
Compared with the prior art, the invention has the following beneficial effects:
(1) The CCM prepared by the invention has the advantages that a layer of back membrane is reserved on the outermost layer of CCL and ACL, the back membrane is used as a conveying carrier of the CCM in the membrane electrode production process, the thickness of the CCM is not a factor for restricting the CCM feeding, the problem of curling of the membrane CCM can be solved, the membrane electrode manufacturing size is more stable, the material treatment is greatly improved because the CCM cannot be wrinkled, curled or mechanically changed on the back membrane, the manufacturing yield in the lamination process and the Membrane Electrode Frame Assembly (MEFA) conversion process is facilitated to be improved, the membrane electrode mass production is facilitated to be improved, and the required material transfer equipment is simplified, which means that the CCM is not required to be under constant vacuum.
(2) The invention adopts static neutralization to reduce static, and adds auxiliary rollers to help CCM separate from the back membrane, which is beneficial to improving membrane electrode mass production.
(3) According to the invention, the process detection is adopted, whether a catalyst coating is remained on the back film after separation is carried out at the CCM separation station is detected, defective products are removed, the laser cutting mark depth is detected, and the laser parameters are corrected to meet the cutting requirement, so that the CCM packaging utilization is improved, the CCM utilization rate can be improved to 100% in the feeding direction, and the material 0 loss in the production process is realized.
(4) According to the invention, after the frame is cut, the frame is stuck to the CCM, so that the problem that the cutting burr direction of the traditional circular cutter is uncontrollable is solved.
(5) Poor CCM rejection only rejects the poor CCM area, and is conventionally MEFA whole-piece rejection.
(6) The production line has better flexibility and can be suitable for production of membrane electrodes with different sizes.
Drawings
Fig. 1 is a schematic diagram of a cutting process of a CCM membrane electrode assembly process according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a mounting process of a CCM membrane electrode assembly process according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a hot pressing process of a CCM membrane electrode assembly process according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a separation process of a CCM membrane electrode assembly process according to an embodiment of the present invention.
Fig. 5 is a flow chart of a CCM membrane electrode assembly process according to an embodiment of the present invention.
In the figure, 1-CCM, 2-back film, 3-vacuum plate, 4-cut depth, 5-frame, 6-hot press block, 7-glue guiding groove, 8-manipulator, 9-packaging assembly and 10-auxiliary roller.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
The invention provides a CCM membrane electrode assembly process, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
According to one embodiment of the present invention, CCM1 is prepared with a backing film 2 remaining at the outermost end of the anode catalyst layer.
According to one embodiment of the present invention, CCM1 is laid out flat by tension rolls.
According to one embodiment of the invention, the ionic wind is generated by an ionic wind generating device to neutralize static electricity during deployment.
According to one embodiment of the present invention, the CCM1 is fully cut and the back film 2 is half cut by setting the laser energy, speed and cutting times at the time of laser cutting.
According to one embodiment of the present invention, CCM1 is aligned with bezel 5 by visual guidance techniques at the time of application.
According to one embodiment of the present invention, identifying the defect of CCM1 in step S1 and identifying the defect by intelligent defect identification is further included between step S1 and step S2.
According to one embodiment of the present invention, in step S2, CCM1 identified with a bad CCM1 label is rejected without cutting.
According to one embodiment of the invention, when the split-charging semi-finished product of the frame 5 and the CCM1 is peeled from the back film 2, the frame 5 is directly torn by being grasped by a manipulator 8.
According to one embodiment of the invention, the angle and speed of the tear is controlled during the tearing of the manipulator 8.
According to one embodiment of the invention, the contact angle of the surface of the backing film 2 is monitored during the tearing of the robot 8.
According to one embodiment of the present invention, in step S5, an auxiliary roller 10 is added between CCM1 and back film 2 to assist in separation of CCM1 from back film 2.
According to one embodiment of the present invention, in step S4, vacuum adsorption is performed during the hot pressing process, and the glue guiding groove 7 is formed on the hot press platform.
According to one embodiment of the present invention, during step S5, it is detected whether a catalyst coating remains on the back film 2, and if so, marking is performed and rejection is notified in the defective product discharge process.
According to one embodiment of the invention, in step S2, the laser kerf is monitored and if the laser kerf depth 4 is detected to be smaller than the set point, the laser parameters are modified.
The invention provides a CCM membrane electrode assembly device, which uses any CCM membrane electrode assembly process to assemble membrane electrodes, and comprises the following stations in sequence:
the CCM unreeling station is used for completely flattening the CCM1 and neutralizing static electricity in the unreeling process;
a CCM cutting station for implementing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
the CCM mounting station is used for coating glue on the pre-cut frame 5 and pasting the pre-cut frame on the CCM1 through the adsorption mechanism;
the CCM hot-pressing station applies pressure to the glue bonding area on the CCM1 through a hot press and heats the glue, so that the glue is fully solidified to form bonding force, and a split-charging semi-finished product of the frame 5 and the CCM1 is formed;
and a CCM separating station for stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
According to a specific embodiment of the invention, the CCM membrane electrode assembly equipment further comprises a CCM defect identification detection station arranged between the CCM unreeling station and the CCM cutting station, and is used for intelligently identifying and identifying the defects of the CCM 1.
According to a specific embodiment of the invention, the CCM membrane electrode assembly device is further provided with a process detection station for detecting whether a catalyst coating is left on the back membrane 2 after separation at the CCM separation station, and if so, marking and notifying rejection at the defective product discharge process.
According to one embodiment of the invention, the process detection station also monitors the CCM cutting station for laser kerfs and if it is detected that the laser kerf depth 4 is less than the set point, the laser parameters are modified.
Example 1
The CCM membrane electrode assembly process of the present invention will be described in detail according to one embodiment of the present invention.
The invention provides a CCM membrane electrode assembly process, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Example 2
The CCM membrane electrode assembly process of the present invention will be described in detail according to one embodiment of the present invention.
The invention provides a CCM membrane electrode assembly process, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Wherein CCM1 is developed into a plane by tension rollers.
Wherein, the ion wind generator generates ion wind to neutralize static electricity in the unfolding process.
Example 3
The CCM membrane electrode assembly process of the present invention will be described in detail according to one embodiment of the present invention.
The invention provides a CCM membrane electrode assembly process, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
In the laser cutting, the CCM1 is fully cut and the back film 2 is half cut by setting the laser energy, the speed and the cutting frequency.
Example 4
The membrane electrode assembly process of the CCM of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of a CCM, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Wherein, the step S1 and the step S2 further comprise identifying the defect of the CCM1 in the step S1 through intelligent defect identification, and identifying.
In step S2, CCM1 with the defective CCM1 label is rejected, and no cutting is performed.
Example 5
The membrane electrode assembly process of CCM1 of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of CCM1, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
When the split-charging semi-finished products of the frame 5 and the CCM1 are peeled off from the back film 2, the frame 5 is directly torn off by being grasped by a manipulator 8.
Example 6
The membrane electrode assembly process of the CCM of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of a CCM, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
In step S4, vacuum adsorption is performed in the hot pressing process, and a glue guiding groove 7 is formed on the hot press platform.
Example 7
The membrane electrode assembly process of the CCM of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of a CCM, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Wherein CCM1 is developed into a plane by tension rollers.
Wherein, the ion wind generator generates ion wind to neutralize static electricity in the unfolding process.
In the laser cutting, the CCM1 is fully cut and the back film 2 is half cut by setting the laser energy, the speed and the cutting frequency.
Wherein, the CCM1 is aligned with the frame 5 by a visual guiding technology during pasting.
Wherein, the step S1 and the step S2 further comprise identifying the defect of the CCM1 in the step S1 through intelligent defect identification, and identifying.
In step S4, vacuum adsorption is performed in the hot pressing process, and a glue guiding groove 7 is formed on the hot press platform.
In the step S5, it is detected whether a catalyst coating remains on the back film 2, and if so, the marking is performed and the defective product discharging process is notified to be removed.
In step S2, the laser kerf is monitored, and if the laser kerf depth 4 is detected to be smaller than the set value, the laser parameters are corrected.
Example 8
The membrane electrode assembly process of the CCM of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of a CCM, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
When the split-charging semi-finished products of the frame 5 and the CCM1 are peeled off from the back film 2, the frame 5 is directly torn off by being grasped by a manipulator 8.
Wherein, in the process of tearing by the manipulator 8, the tearing angle and speed are controlled.
Wherein, in the process of tearing by the manipulator 8, the contact angle of the surface of the back film 2 is monitored.
Wherein, in step S5, an auxiliary roller 10 is added between the CCM1 and the back film 2 to assist the separation of the CCM1 from the back film 2.
Example 9
The membrane electrode assembly process of the CCM of the present invention is described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly process of a CCM, which comprises the following steps:
s0: in the process of preparing the CCM1, a layer of back membrane 2 is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer to form the CCM1 formed by stacking the cathode back membrane, the cathode catalyst layer, the proton exchange membrane and the anode catalyst layer or the CCM1 formed by stacking the cathode catalyst layer, the proton exchange membrane, the anode catalyst layer and the anode back membrane;
s1: generating a CCM1 into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
s3: coating glue on the pre-cut frame 5, and attaching the pre-cut frame to the CCM1 through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming sub-packaging semi-finished products of the frame 5 and the CCM1;
s5: and stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Wherein CCM1 is developed into a plane by tension rollers.
Wherein, the ion wind generator generates ion wind to neutralize static electricity in the unfolding process.
In the laser cutting, the CCM1 is fully cut and the back film 2 is half cut by setting the laser energy, the speed and the cutting frequency.
Wherein, the CCM1 is aligned with the frame 5 by a visual guiding technology during pasting.
Wherein, the step S1 and the step S2 further comprise identifying the defect of the CCM1 in the step S1 through intelligent defect identification, and identifying.
In step S2, CCM1 with a bad CCM1 label is rejected.
When the split-charging semi-finished products of the frame 5 and the CCM1 are peeled off from the back film 2, the frame 5 is directly torn off by being grasped by a manipulator 8.
Wherein, in the process of tearing by the manipulator 8, the tearing angle and speed are controlled.
Wherein, in the process of tearing by the manipulator 8, the contact angle of the surface of the back film 2 is monitored.
Wherein, in step S5, an auxiliary roller 10 is added between the CCM1 and the back film 2 to assist the separation of the CCM1 from the back film 2.
In step S4, vacuum adsorption is performed in the hot pressing process, and a glue guiding groove 7 is formed on the hot press platform.
In the step S5, it is detected whether a catalyst coating remains on the back film 2, and if so, the marking is performed and the defective product discharging process is notified to be removed.
In step S2, the laser kerf is monitored, and if the laser kerf depth 4 is detected to be smaller than the set value, the laser parameters are corrected.
Example 10
The membrane electrode assembly apparatus of the CCM of the present invention will be described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly device of a CCM, which uses the membrane electrode assembly process of any CCM to assemble the membrane electrode, and comprises the following stations arranged in sequence:
the CCM unreeling station is used for completely flattening the CCM1 and neutralizing static electricity in the unreeling process;
a CCM cutting station for implementing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
the CCM mounting station is used for coating glue on the pre-cut frame 5 and pasting the pre-cut frame on the CCM1 through the adsorption mechanism;
the CCM hot-pressing station applies pressure to the glue bonding area on the CCM1 through a hot press and heats the glue, so that the glue is fully solidified to form bonding force, and a split-charging semi-finished product of the frame 5 and the CCM1 is formed;
and a CCM separating station for stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
Example 11
The membrane electrode assembly apparatus of the CCM of the present invention will be described in detail according to one embodiment of the present invention.
The invention provides a membrane electrode assembly device of a CCM, which uses the membrane electrode assembly process of any CCM to assemble the membrane electrode, and comprises the following stations arranged in sequence:
the CCM unreeling station is used for completely flattening the CCM1 and neutralizing static electricity in the unreeling process;
a CCM cutting station for implementing sizing cutting on the CCM1 through a laser cutting process, wherein the CCM1 is sucked on a flat plate in vacuum during cutting;
the CCM mounting station is used for coating glue on the pre-cut frame 5 and pasting the pre-cut frame on the CCM1 through the adsorption mechanism;
the CCM hot-pressing station applies pressure to the glue bonding area on the CCM1 through a hot press and heats the glue, so that the glue is fully solidified to form bonding force, and a split-charging semi-finished product of the frame 5 and the CCM1 is formed;
and a CCM separating station for stripping the split-charging semi-finished products of the frame 5 and the CCM1 from the back film 2.
The method further comprises the step of setting a CCM defect identification detection station between the CCM unreeling station and the CCM cutting station, and performing intelligent defect identification on the CCM1 and identification.
The process detection station is also arranged, and is used for detecting whether a catalyst coating is remained on the back film 2 after the CCM separation station is used for separation, and if so, marking is carried out and the defective product discharging procedure is notified to be removed.
The process detection station also monitors the laser cutting marks on the CCM cutting station, and if the laser cutting mark depth 4 is detected to be smaller than the set value, the laser parameters are corrected.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (7)

1. A CCM membrane electrode assembly process, comprising the steps of:
s0: preparing a CCM, wherein a layer of back membrane is reserved at the outermost end of the anode catalyst layer or the cathode catalyst layer in the process of preparing the CCM, so as to form a CCM formed by stacking a cathode back membrane, a cathode catalyst layer, a proton exchange membrane and an anode catalyst layer, or a CCM formed by stacking a cathode catalyst layer, a proton exchange membrane, an anode catalyst layer and an anode back membrane;
s1: generating a CCM into a plane, and neutralizing static electricity in the expanding process;
s2: performing sizing cutting on the CCM through a laser cutting process, wherein the CCM is sucked on a flat plate in vacuum during cutting; in step S2, performing full cutting on the CCM, monitoring laser cutting marks, and if the laser cutting mark depth is detected to be smaller than a set value, correcting laser parameters;
s3: coating glue on the pre-cut frame, and attaching the pre-cut frame to the CCM through an adsorption mechanism;
s4: applying pressure to the glue bonding area and heating to fully solidify the glue to form bonding force, and forming a split-charging semi-finished product of the frame and the CCM;
s5: stripping the split-charging semi-finished products of the frame and the CCM from the back film; in the step S5, detecting whether a catalyst coating is remained on the back film, if so, marking and informing to reject in a defective product discharging procedure;
and identifying the defects of the CCM in the step S1 through intelligent defect identification between the step S1 and the step S2, and rejecting the CCM with the bad CCM label in the step S2.
2. The CCM membrane electrode assembly process of claim 1, wherein the back membrane is half cut by laser cutting with settings of laser energy, speed and number of cuts.
3. The CCM membrane electrode assembly process of claim 1 wherein the CCM is aligned with the frame by visual guidance techniques when applied.
4. The CCM membrane electrode assembly process of claim 1, wherein the rim is directly torn by a manipulator grasping the rim when the rim and the partial shipment semi-finished product of the CCM are peeled from the back membrane.
5. The CCM membrane electrode assembly process of claim 4 wherein the angle and speed of tearing is controlled during a mechanical hand tear and the contact angle of the back membrane surface is monitored during a mechanical hand tear.
6. The CCM membrane electrode assembly process according to claim 1, wherein in step S4, vacuum adsorption is performed during the hot pressing process, and a glue guiding groove is formed on a hot press platform.
7. A CCM membrane electrode assembly apparatus, characterized in that the membrane electrode assembly is performed using the CCM membrane electrode assembly process according to any one of claims 1 to 6, comprising the following stations in sequence:
the CCM unreeling station is used for completely flattening the CCM and neutralizing static electricity in the unreeling process;
the CCM defect identification detection station is used for carrying out intelligent defect identification on the CCM and identifying;
the CCM cutting station is used for implementing sizing cutting on the CCM through a laser cutting process, and the CCM is sucked on a flat plate in vacuum during cutting;
the CCM mounting station is used for coating glue on the pre-cut frame and mounting the frame on the CCM through the adsorption mechanism;
the CCM hot-pressing station applies pressure to the glue bonding area on the CCM through a hot press and heats the glue, so that the glue is fully solidified to form bonding force, and a split-charging semi-finished product of the frame and the CCM is formed;
a CCM separating station for stripping the frame and the split-charging semi-finished product of the CCM from the back membrane;
and the process detection station is used for detecting whether a catalyst coating is remained on the back film after the separation of the CCM separation station, if so, marking and informing the rejection in the defective product discharging process, monitoring the laser cutting mark on the CCM cutting station, and correcting the laser parameters if the laser cutting mark depth is detected to be smaller than the set value.
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CN112531183A (en) * 2020-12-03 2021-03-19 中国科学院大连化学物理研究所 Fuel cell membrane electrode sealing assembly, packaging process and continuous packaging equipment
CN112582654A (en) * 2020-12-08 2021-03-30 无锡先导智能装备股份有限公司 Method for producing membrane electrode
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CN218707612U (en) * 2022-10-11 2023-03-24 江苏氢导智能装备有限公司 Five-in-one forming equipment

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Publication number Priority date Publication date Assignee Title
JP2015050155A (en) * 2013-09-04 2015-03-16 凸版印刷株式会社 Device and method for manufacturing membrane electrode assembly
CN109390610A (en) * 2018-10-15 2019-02-26 南京大学昆山创新研究院 A kind of fuel cell membrane electrode production packaging technology
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