CN114759165B - Processing method for positive and negative pole pieces of lithium battery - Google Patents
Processing method for positive and negative pole pieces of lithium battery Download PDFInfo
- Publication number
- CN114759165B CN114759165B CN202210294282.5A CN202210294282A CN114759165B CN 114759165 B CN114759165 B CN 114759165B CN 202210294282 A CN202210294282 A CN 202210294282A CN 114759165 B CN114759165 B CN 114759165B
- Authority
- CN
- China
- Prior art keywords
- pole piece
- pressing
- frame plate
- lifting seat
- cutting
- 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
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims abstract description 51
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000006258 conductive agent Substances 0.000 claims abstract description 8
- 239000007772 electrode material Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000011267 electrode slurry Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 4
- 241000252254 Catostomidae Species 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a processing method for positive and negative pole pieces of a lithium battery, which comprises the following raw materials in parts by mass: 80-100 parts of electrode active material, 60-80 parts of solvent, 5-10 parts of binder and 1-4 parts of conductive agent; the preparation of electrode slurry, which is to mix electrode active material, solvent, binder and conductive agent together, fully stir and disperse to form slurry, coat, uniformly coat the slurry prepared in the first step on a current collector, dry the solvent, die-cut the pole piece, and die-cut the pole piece manufactured in the second step into specified size and shape by a die-cutting device; when the pressing and cutting device is used for pressing and cutting, when the pressing and cutting upper die continuously presses downwards, the movable frame plate compresses the first spring in the inner cavity of the fixed frame plate, the movable frame plate is pressed on the top side of the pole piece through the action of the first spring, the pole piece in the pressing and cutting process is limited, the pole piece deviation in the pressing and cutting process is avoided, and the pressing and cutting accuracy is guaranteed.
Description
Technical Field
The invention relates to the technical field of lithium battery processing, in particular to a processing method for positive and negative pole pieces of a lithium battery.
Background
A lithium battery is a battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material, and therefore, such a battery is also called a lithium metal battery.
In the processing process of the positive electrode and the negative electrode of the lithium battery, the positive electrode and the negative electrode are punched into different shapes through a punching device, and when the conventional punching device is used, the pole piece during punching cannot be limited, and the off tracking of the pole piece is easy to occur during punching; and after punching is finished, automatic unloading cannot be achieved, manual assistance is needed, and the degree of automation is low.
Disclosure of Invention
The invention solves the problems that the existing punching device cannot limit the pole piece during punching when in use and the off-tracking of the pole piece is easy to occur during punching; and after punching is finished, automatic unloading cannot be achieved, manual assistance is needed, and the automatic degree is low.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the processing method for the positive and negative pole pieces of the lithium battery comprises the following raw materials in parts by mass:
80-100 parts of electrode active material, 60-80 parts of solvent, 5-10 parts of binder and 1-4 parts of conductive agent;
the specific operation of the processing method is as follows:
step one: electrode slurry is prepared, electrode active materials, solvents, binders and conductive agents are mixed together, and the mixture is fully stirred and dispersed to form slurry;
step two: coating, namely uniformly coating the slurry prepared in the step one on a current collector, and drying a solvent;
step three: the pole piece is punched, the pole piece manufactured in the second step is punched into a specified size and shape through a punching device, the pole piece moves on a base, a piston rod is driven to move through the operation of a pneumatic rod at the moment, a lifting seat is driven to move, a pressing and cutting upper die on the lifting seat and a pressing and cutting lower die on the base are matched to press and cut the pole piece, a movable frame plate of a limiting mechanism is firstly contacted with the pole piece at the moment, when the pressing and cutting upper die continuously presses down, a first spring is compressed in an inner cavity of a fixed frame plate by the movable frame plate, the movable frame plate is pressed on the top side of the pole piece under the action of the first spring, the pole piece in the pressing and cutting process is limited, meanwhile, the pole piece after pressing and cutting continuously moves, and when passing under a sucker, with the downward movement of lifting seat, until the sucking disc contacts with pole piece after pressing and cutting, the air pump works, negative pressure is generated in the sucking disc, the pole piece is adsorbed, and after punching, when the lifting seat moves upwards to contact with the limiting plate, the supporting rod drives the first piston to move upwards, the second spring is compressed, air in the top cylinder is pressed into the side cylinder, the second piston in the side cylinder drives the connecting rod to move, the unloading groove is moved to the lower part of the sucking disc, the air pump works, the punched pole piece falls from the sucking disc to the unloading groove to finish unloading, when the lifting seat moves downwards again, the air in the side cylinder is sucked into the top cylinder through the second spring, the unloading groove moves to one side of the lifting seat, and blocking of the lifting seat and the moved pole piece is avoided.
Preferably, the punching device comprises a base, a supporting seat and a lifting seat, wherein the top of the base is provided with an L-shaped supporting seat, a plurality of guide rods are arranged between the base and the supporting seat, and the lifting seat is slidably arranged outside the guide rods;
the lifting seat bottom side is provided with a pressing and cutting upper die and a limiting mechanism, the limiting mechanism is located on the outer side of the pressing and cutting upper die, the lifting seat bottom side is provided with a plurality of supporting tubes, the bottom ends of the supporting tubes are provided with sucking discs, the side walls of the supporting seats are provided with side plates, and the side plates are provided with discharge grooves in a sliding mode.
Preferably, a pneumatic rod is installed at the top of the supporting seat, and a piston rod of the pneumatic rod penetrates through the supporting seat to be connected with the lifting seat.
Preferably, the limiting mechanism comprises a fixed frame plate and a movable frame plate, wherein the movable frame plate is elastically installed inside the fixed frame plate, and the bottom end of the movable frame plate is positioned outside the fixed frame plate.
Preferably, an inner cavity is formed in the fixed frame plate, a plurality of first springs are mounted in the inner cavity, and the bottom ends of the first springs are connected with the movable frame plate.
Preferably, an air pump is arranged on the top side of the lifting seat, and the air pump is connected with the supporting tube in a conducting way.
Preferably, a top cylinder is arranged at the bottom side of the top of the lifting seat, a second spring is arranged in the top cylinder and connected with a first piston, the first piston is connected with the top end of a supporting rod, and a limiting plate is arranged at the bottom of the supporting rod in a penetrating mode.
Preferably, a side cylinder is arranged on the side plate, the side cylinder is far away from the side plate end and is connected with the top end of the top cylinder through an air pipe, a second piston is arranged in the side cylinder and is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the discharge chute.
The beneficial effects of the invention are as follows: when the pressing and cutting device is used for pressing and cutting, when the pressing and cutting upper die continuously presses downwards, the movable frame plate compresses the first spring in the inner cavity of the fixed frame plate, the movable frame plate is pressed on the top side of the pole piece under the action of the first spring, the pole piece in the pressing and cutting process is limited, the pole piece deviation in the pressing and cutting process is avoided, and the accuracy of pressing and cutting is ensured;
simultaneously, the pole piece after the pressure cutting continuously moves, when passing through the sucking disc below, along with the downward movement of the lifting seat, until the sucking disc contacts with the pole piece after the pressure cutting, the air pump works, negative pressure is generated in the sucking disc, the pole piece is adsorbed, and after the punching, when the lifting seat moves upwards to contact with the limiting plate, the supporting rod drives the first piston to move upwards, the second spring is compressed, air in the top cylinder is pressed into the side cylinder, the second piston in the side cylinder drives the connecting rod to move, the unloading groove moves to the position below the sucking disc, the air pump works, the pole piece after punching falls off from the sucking disc to the unloading groove, the unloading groove moves to one side of the lifting seat through the second spring, the blocking of the lifting seat and the moving pole piece is avoided, the automatic unloading of the sliced piece after the pressure cutting is realized according to the moving state of the lifting seat, the degree of automation is high, and practical operation is convenient.
Drawings
FIG. 1 is a first overall structural schematic of the present invention;
FIG. 2 is a first overall schematic diagram of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic view of the internal structure of the limiting mechanism of the present invention;
FIG. 5 is a schematic view of the internal structure of the top and side barrels of the present invention.
Legend description:
1. a base; 2. a support base; 3. a lifting seat; 4. a guide rod; 5. pressing and cutting an upper die; 6. a limiting mechanism; 7. pressing the lower die; 8. a support tube; 9. a suction cup; 10. a side plate; 11. a discharge chute; 12. a pneumatic rod; 13. a piston rod; 14. an air pump; 15. fixing the frame plate; 16. a movable frame plate; 17. an inner cavity; 18. a first spring; 19. a top cylinder; 20. a side cylinder; 21. a second spring; 22. a first piston; 23. a support rod; 24. a limiting plate; 25. a second piston; 26. and (5) connecting a rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Specific examples are given below.
Referring to fig. 1 to 5, a processing method for positive and negative pole pieces of a lithium battery comprises the following raw materials in parts by weight:
80-100 parts of electrode active material, 60-80 parts of solvent, 5-10 parts of binder and 1-4 parts of conductive agent;
the specific operation of the processing method is as follows:
step one: electrode slurry is prepared, electrode active materials, solvents, binders and conductive agents are mixed together, and the mixture is fully stirred and dispersed to form slurry;
step two: coating, namely uniformly coating the slurry prepared in the step one on a current collector, and drying a solvent;
step three: the pole piece is punched, the pole piece manufactured in the second step is punched into a specified size and shape through a punching device, the pole piece moves on the base 1, the piston rod 13 is driven to move through the operation of the pneumatic rod 12 at the moment, the lifting seat 3 is driven to move, the upper pressing and cutting die 5 on the lifting seat 3 is matched with the lower pressing and cutting die 7 on the base 1 to press and cut the pole piece, the movable frame plate 16 of the limiting mechanism 6 is firstly contacted with the pole piece, and when the upper pressing and cutting die 5 is continuously pressed down, the movable frame plate 16 compresses the first spring 18 in the inner cavity 17 of the fixed frame plate 15. The movable frame plate 16 is pressed on the top side of the pole piece through the action of the first spring 18, the pole piece in the pressing and cutting process is limited, meanwhile, the pole piece after pressing and cutting continuously moves, when passing through the lower part of the suction cup 9, along with the downward movement of the lifting seat 3 until the suction cup 9 contacts with the pole piece after pressing and cutting, the air pump 14 works, negative pressure is generated in the suction cup 9 to adsorb the pole piece, and after punching, when the lifting seat 3 moves upwards to contact with the limiting plate 24, the supporting rod 23 drives the first piston 22 to move upwards to compress the second spring 21, air in the top cylinder 19 is pressed into the side cylinder 20, the second piston 25 in the side cylinder 20 drives the connecting rod 26 to move, the unloading groove 11 moves to the lower part of the suction cup 9, the air pump 14 works, the punched pole piece falls off from the suction cup 9 to the unloading groove 11, the unloading is completed, when the lifting seat 3 moves downwards again, the air in the side cylinder 20 is sucked into the top cylinder 19, the unloading groove 11 moves to one side of the lifting seat 3, and the moving pole piece is prevented from blocking.
The punching device comprises a base 1, a supporting seat 2 and a lifting seat 3, wherein the top of the base 1 is provided with the L-shaped supporting seat 2, a plurality of guide rods 4 are arranged between the base 1 and the supporting seat 2, the outer sides of the guide rods 4 are slidably provided with the lifting seat 3, the top of the supporting seat 2 is provided with a pneumatic rod 12, a piston rod 13 of the pneumatic rod 12 penetrates through the supporting seat 2 to be connected with the lifting seat 3, and the pneumatic rod 12 works to realize lifting of the lifting seat 3;
the bottom side of the lifting seat 3 is provided with a pressing and cutting upper die 5 and a limiting mechanism 6, the limiting mechanism 6 is positioned at the outer side of the pressing and cutting upper die 5, the bottom side of the lifting seat 3 is provided with a plurality of supporting pipes 8, the bottom ends of the supporting pipes 8 are provided with suckers 9, the side wall of the supporting seat 2 is provided with a side plate 10, a discharge chute 11 is slidably arranged on the side plate 10, the limiting mechanism 6 comprises a fixed frame plate 15 and a movable frame plate 16, the inside of the fixed frame plate 15 is elastically provided with the movable frame plate 16, the bottom end of the movable frame plate 16 is positioned at the outer side of the fixed frame plate 15, the inside of the fixed frame plate 15 is provided with an inner cavity 17, the inside of the inner cavity 17 is provided with a plurality of first springs 18, the bottom ends of the first springs 18 are connected with the movable frame plate 16, when the pressing and cutting upper die 5 continuously presses down, the movable frame plate 16 is compressed in the inner cavity 17 of the fixed frame plate 15 to press the movable frame plate 16 at the top side of a pole piece through the action of the first springs 18, limiting a pole piece in the pressing and cutting process, installing an air pump 14 on the top side of a lifting seat 3, conducting the air pump 14 with a supporting tube 8, realizing the adsorption and separation of a sucking disc 9 and the pole piece after pressing and cutting through the work of the air pump 14, installing a top cylinder 19 on the bottom side of the top of the lifting seat 3, internally installing a second spring 21 in the top cylinder 19, connecting the second spring 21 with a first piston 22, connecting the first piston 22 with the top end of a supporting rod 23, penetrating the bottom end of the supporting rod 23 through the bottom of the top cylinder 19, installing a limiting plate 24, installing a side cylinder 20 on a side plate 10, connecting the end of the side cylinder 20 far away from the side plate 10 with the top end of the top cylinder 19 through an air tube, internally installing a second piston 25 in the side cylinder 20, connecting the second piston 25 with one end of a connecting rod 26, connecting the other end of the connecting rod 26 with a discharge chute 11, moving up and contacting the lifting seat 3 with the limiting plate 24, at the moment, driving the first piston 22 to move up by the supporting rod 23, compressing the second spring 21, pressing the air in the top cylinder 19 into the side cylinder 20, driving the connecting rod 26 to move by the second piston 25 in the side cylinder 20, moving the discharge chute 11 to the lower part of the suction cup 9, operating the air pump 14, and dropping the punched pole piece from the suction cup 9 onto the discharge chute 11 to finish discharging, when the lifting seat 3 moves downwards again, sucking the air in the side cylinder 20 into the top cylinder 19 through the second spring 21, and moving the discharge chute 11 to one side of the lifting seat 3.
When the pressing and cutting device is used for pressing and cutting, and the pressing and cutting upper die 5 is continuously pressed downwards, the movable frame plate 16 compresses the first spring 18 in the inner cavity 17 of the fixed frame plate 15, the movable frame plate 16 is pressed on the top side of the pole piece under the action of the first spring 18, the pole piece in the pressing and cutting process is limited, the pole piece is prevented from deviating in the pressing and cutting process, and the accuracy of pressing and cutting is ensured;
meanwhile, the pole piece after pressing and cutting continuously moves, when passing through the lower part of the sucker 9, the air pump 14 works along with the downward movement of the lifting seat 3 until the sucker 9 contacts with the pole piece after pressing and cutting, negative pressure is generated in the sucker 9 to adsorb the pole piece, and after punching, when the lifting seat 3 moves upwards to contact with the limiting plate 24, the supporting rod 23 drives the first piston 22 to move upwards to compress the second spring 21, air in the top cylinder 19 is pressed into the side cylinder 20, the second piston 25 in the side cylinder 20 drives the connecting rod 26 to move, the unloading groove 11 moves to the lower part of the sucker 9, the air pump 14 works, the punched pole piece falls off from the sucker 9 to the unloading groove 11 to finish unloading, when the lifting seat 3 moves downwards again, the air in the side cylinder 20 is sucked into the top cylinder 19, the unloading groove 11 moves to one side of the lifting seat 3, blocking is avoided to the lifting seat 3 and the moved pole piece, the automatic unloading of the cut slice is realized according to the moving state of the lifting seat 3, the automatic degree is high, and practical operation is convenient.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The processing method for the positive and negative pole pieces of the lithium battery is characterized by comprising the following raw materials in parts by mass:
80-100 parts of electrode active material, 60-80 parts of solvent, 5-10 parts of binder and 1-4 parts of conductive agent;
the specific operation of the processing method is as follows:
step one: electrode slurry is prepared, electrode active materials, solvents, binders and conductive agents are mixed together, and the mixture is fully stirred and dispersed to form slurry;
step two: coating, namely uniformly coating the slurry prepared in the step one on a current collector, and drying a solvent;
step three: the pole piece is punched, the pole piece manufactured in the second step is punched into a specified size and shape through a punching device, the punching device comprises a base (1), a supporting seat (2) and a lifting seat (3), the L-shaped supporting seat (2) is arranged at the top of the base (1), a plurality of guide rods (4) are arranged between the base (1) and the supporting seat (2), the lifting seat (3) is slidably arranged outside the guide rods (4), a pneumatic rod (12) is arranged at the top of the supporting seat (2), and a piston rod (13) of the pneumatic rod (12) penetrates through the supporting seat (2) and is connected with the lifting seat (3);
the lifting seat (3) is characterized in that the bottom side of the lifting seat (3) is provided with a pressing and cutting upper die (5) and a limiting mechanism (6), the limiting mechanism (6) is positioned on the outer side of the pressing and cutting upper die (5), the bottom side of the lifting seat (3) is provided with a plurality of supporting pipes (8), the bottom ends of the supporting pipes (8) are provided with sucking discs (9), the side wall of the supporting seat (2) is provided with a side plate (10), and a discharge chute (11) is slidably arranged on the side plate (10);
a top cylinder (19) is arranged at the bottom side of the top of the lifting seat (3), a second spring (21) is arranged in the top cylinder (19), the second spring (21) is connected with a first piston (22), the first piston (22) is connected with the top end of a supporting rod (23), and a limiting plate (24) is arranged at the bottom end of the supporting rod (23) penetrating through the bottom of the top cylinder (19);
a side cylinder (20) is arranged on the side plate (10), the end, far away from the side plate (10), of the side cylinder (20) is connected with the top end of the top cylinder (19) through an air pipe, a second piston (25) is arranged in the side cylinder (20), the second piston (25) is connected with one end of a connecting rod (26), and the other end of the connecting rod (26) is connected with the discharge chute (11);
the pole piece moves on the base (1), the piston rod (13) is driven to move through the operation of the air pressure rod (12) at the moment, the lifting seat (3) is driven to move, the pressing and cutting upper die (5) on the lifting seat (3) is matched with the pressing and cutting lower die (7) on the base (1) at the moment to press and cut the pole piece, the movable frame plate (16) of the limiting mechanism (6) is firstly contacted with the pole piece, when the pressing and cutting upper die (5) continuously presses down, the movable frame plate (16) compresses the first spring (18) in the inner cavity (17) of the fixed frame plate (15), the movable frame plate (16) is pressed on the top side of the pole piece through the action of the first spring (18), the pole piece after pressing and cutting is limited, meanwhile, the pole piece after pressing and cutting continuously moves, when passing under the sucker (9), the sucker (9) moves downwards until the sucker (9) contacts with the pole piece after pressing and cuts, the air pump (14) on the lifting seat (3) is operated, negative pressure is generated in the sucker (9), the pole piece is adsorbed, and the piston rod (20) is pressed in the second cylinder (20) in a pressing way, the second cylinder (20) is driven to move, the piston (20) in the second cylinder (20), move discharge chute (11) to sucking disc (9) below, air pump (14) work, and the pole piece after the die-cut drops to discharge chute (11) from sucking disc (9), accomplishes the unloading, when lift seat (3) move down once more, through second spring (21), side section of thick bamboo (20) inner air is inhaled a section of thick bamboo (19), and discharge chute (11) remove to lift seat (3) one side, avoid causing the jam to lift seat (3) and the pole piece of removal.
2. The processing method for the positive and negative pole pieces of the lithium battery according to claim 1, wherein the limiting mechanism (6) comprises a fixed frame plate (15) and a movable frame plate (16), the movable frame plate (16) is elastically installed inside the fixed frame plate (15), and the bottom end of the movable frame plate (16) is located outside the fixed frame plate (15).
3. The processing method for the positive and negative pole pieces of the lithium battery according to claim 2, wherein an inner cavity (17) is formed in the fixed frame plate (15), a plurality of first springs (18) are installed in the inner cavity (17), and the bottom ends of the first springs (18) are connected with the movable frame plate (16).
4. The method for processing the positive and negative pole pieces of the lithium battery according to claim 3, wherein an air pump (14) is arranged on the top side of the lifting seat (3), and the air pump (14) is in conductive connection with the supporting tube (8).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294282.5A CN114759165B (en) | 2022-03-24 | 2022-03-24 | Processing method for positive and negative pole pieces of lithium battery |
| NL2034063A NL2034063B1 (en) | 2022-03-24 | 2023-02-01 | Machining method for positive and negative pole pieces of lithium battery |
| LU503423A LU503423B1 (en) | 2022-03-24 | 2023-02-01 | Machining method for positive and negative pole pieces of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294282.5A CN114759165B (en) | 2022-03-24 | 2022-03-24 | Processing method for positive and negative pole pieces of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114759165A CN114759165A (en) | 2022-07-15 |
| CN114759165B true CN114759165B (en) | 2024-02-06 |
Family
ID=82327076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210294282.5A Active CN114759165B (en) | 2022-03-24 | 2022-03-24 | Processing method for positive and negative pole pieces of lithium battery |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114759165B (en) |
| LU (1) | LU503423B1 (en) |
| NL (1) | NL2034063B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301496B (en) * | 2022-09-02 | 2024-03-12 | 天科新能源有限责任公司 | Sodium ion battery negative plate dip coating device for uniformly dispersing slurry and operation method |
| CN115318560B (en) * | 2022-09-05 | 2024-03-12 | 天科新能源有限责任公司 | Sodium ion battery electrode coating device and operation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201676975U (en) * | 2010-03-15 | 2010-12-22 | 苏州星恒电源有限公司 | Discharging device for lithium battery pole piece cutting machine |
| CN210615268U (en) * | 2019-07-22 | 2020-05-26 | 嵇旭辉 | Pole piece slitting equipment for lithium battery production |
| CN112264664A (en) * | 2020-10-31 | 2021-01-26 | 安徽锐之利精密刀模有限公司 | Cutter structure for cutting positive and negative electrodes of lithium battery |
| CN212494781U (en) * | 2020-04-14 | 2021-02-09 | 广东安电能源科技有限公司 | Punching device for lithium battery pole piece |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8926715B2 (en) * | 2007-12-06 | 2015-01-06 | Eliiy Power Co., Ltd. | Method and apparatus for manufacturing electrode assembly for rectangular battery |
| KR101726780B1 (en) * | 2013-09-24 | 2017-04-13 | 주식회사 엘지화학 | Notching Device Having Scrap-removing Means |
| CN110416628A (en) * | 2019-08-06 | 2019-11-05 | 深圳市格林晟科技有限公司 | A kind of cross cutting lamination integrated equipment |
| CN113319198A (en) * | 2021-06-09 | 2021-08-31 | 中聚达(湖北)新能源有限公司 | Lithium battery pole piece punch forming processing machine and method |
| CN113442214A (en) * | 2021-06-25 | 2021-09-28 | 中聚达(湖北)新能源有限公司 | Lithium ion battery pole piece forming processing method |
-
2022
- 2022-03-24 CN CN202210294282.5A patent/CN114759165B/en active Active
-
2023
- 2023-02-01 LU LU503423A patent/LU503423B1/en active IP Right Grant
- 2023-02-01 NL NL2034063A patent/NL2034063B1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201676975U (en) * | 2010-03-15 | 2010-12-22 | 苏州星恒电源有限公司 | Discharging device for lithium battery pole piece cutting machine |
| CN210615268U (en) * | 2019-07-22 | 2020-05-26 | 嵇旭辉 | Pole piece slitting equipment for lithium battery production |
| CN212494781U (en) * | 2020-04-14 | 2021-02-09 | 广东安电能源科技有限公司 | Punching device for lithium battery pole piece |
| CN112264664A (en) * | 2020-10-31 | 2021-01-26 | 安徽锐之利精密刀模有限公司 | Cutter structure for cutting positive and negative electrodes of lithium battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114759165A (en) | 2022-07-15 |
| NL2034063B1 (en) | 2023-11-16 |
| NL2034063A (en) | 2023-10-03 |
| LU503423B1 (en) | 2023-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114759165B (en) | Processing method for positive and negative pole pieces of lithium battery | |
| CN217775268U (en) | Punching device for lithium battery pole piece | |
| KR102495105B1 (en) | Punching mold with scrap suction function | |
| CN115958116A (en) | Punching device for positive battery cover of soft-packaged graphene lithium battery cell | |
| CN213856773U (en) | Air blower machining device | |
| CN111957810B (en) | Punching and stacking equipment for optocoupler supports | |
| CN113319157A (en) | Intelligent automatic stamping die | |
| CN220112177U (en) | Automatic punching and unloading device | |
| CN117358837B (en) | Stamping forming die for large-diameter battery steel shell | |
| CN216540427U (en) | Perforating device of but automatic centering panel | |
| CN209922503U (en) | Punch press material taking and feeding mechanism for keyboard diaphragm | |
| CN216189017U (en) | Elastic sheet assembling device | |
| CN220334073U (en) | Starting sheet body feeding mechanism | |
| CN221290972U (en) | Compacting and positioning device for plastic product processing | |
| CN221186705U (en) | Shearing equipment | |
| CN214055607U (en) | A stamping device for rubber spare | |
| CN219705403U (en) | Cotton shearing equipment | |
| CN217412225U (en) | It takes buoyancy lift mechanism to upgrade mould material | |
| CN221184351U (en) | Lithium battery shell processing stamping device | |
| CN217371244U (en) | Storage battery bolt terminal riveting mechanism | |
| CN220113361U (en) | Cutting device for pretreatment of meat products | |
| CN216183555U (en) | High-precision diaphragm attaching device | |
| CN220805130U (en) | Mechanical equipment part stamping forming device | |
| CN217474676U (en) | A stamping equipment structure for producing fire extinguisher | |
| CN219542466U (en) | Clamping mechanism of punching leveling machine for shell processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |