CN113306264A - Pole piece compounding device and method - Google Patents
Pole piece compounding device and method Download PDFInfo
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- CN113306264A CN113306264A CN202110588489.9A CN202110588489A CN113306264A CN 113306264 A CN113306264 A CN 113306264A CN 202110588489 A CN202110588489 A CN 202110588489A CN 113306264 A CN113306264 A CN 113306264A
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- 238000013329 compounding Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000007731 hot pressing Methods 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 26
- 239000012528 membrane Substances 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 abstract description 24
- 239000000463 material Substances 0.000 description 21
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
- B32B38/1833—Positioning, e.g. registration or centering
- B32B38/1841—Positioning, e.g. registration or centering during laying up
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
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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
- 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
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a pole piece compounding device and a pole piece compounding method, wherein the pole piece compounding device comprises a positioning mechanism, a first hot pressing mechanism and a second hot pressing mechanism, the positioning mechanism is used for positioning a pole piece, and the positioning mechanism can move along the conveying direction of the pole piece; the first hot pressing mechanism comprises a mounting seat, a heating roller and a pressing roller, the heating roller and the pressing roller are both rotatably mounted on the mounting seat, the pressing roller is located on one side of the heating roller, the pressing roller is provided with at least two rolling parts, the rolling parts are arranged at intervals along the axial direction of the pressing roller, a clearance part is formed between every two adjacent rolling parts, the positioning mechanism is located on one side of the first hot pressing mechanism, the clearance part is used for avoiding the positioning mechanism, and the rolling parts are matched with the heating roller to hot press the pole piece; the first hot-pressing mechanism and the second hot-pressing mechanism are sequentially arranged along the conveying direction of the pole piece, the pole piece is positioned on the lower diaphragm through the positioning mechanism, the lower diaphragm is compounded with the pole piece in a hot-pressing mode, and then the upper diaphragm is compounded with the pole piece in a hot-pressing mode. The invention can prevent the pole pieces from deviating, and has high compound precision and high yield.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to pole piece compounding equipment and a pole piece compounding method.
Background
In the conventional manufacturing method of the pole piece composite unit of the double-sided composite diaphragm, after the upper diaphragm and the lower diaphragm are coated with glue, the upper diaphragm, the pole piece and the lower diaphragm are simultaneously conveyed forwards through equipment, so that the upper diaphragm and the lower diaphragm are simultaneously hot-pressed and composited on two sides of the pole piece.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides pole piece compounding equipment which can compound the lower diaphragm on a pole piece and compound the upper diaphragm, so that the pole piece is not easy to deviate, the compounding precision is high, and the yield is high.
The invention also provides a pole piece compounding method applied to the pole piece compounding equipment.
The pole piece compounding device according to the first embodiment of the present invention includes: the positioning mechanism is used for positioning the pole piece; the first hot pressing mechanism comprises a mounting seat, a heating roller and a pressing roller, wherein the heating roller and the pressing roller are both rotatably mounted on the mounting seat, the pressing roller is located on one side of the heating roller, the pressing roller is provided with at least two rolling parts, the rolling parts are arranged at intervals along the axial direction of the pressing roller, a clearance part is formed between every two adjacent rolling parts, the positioning mechanism is located on one side of the first hot pressing mechanism, the clearance part is used for avoiding the positioning mechanism, and the rolling parts are matched with the heating roller to hot press the pole piece; and the second hot-pressing mechanism is arranged along the conveying direction of the pole piece in sequence, and is used for hot-pressing the pole piece.
The technical scheme at least has the following beneficial effects: one diaphragm is hot-pressed and compounded on one side of the pole piece through the first hot-pressing mechanism, during compounding, the positioning mechanism moves synchronously and positions the pole piece on the diaphragm to prevent the pole piece from deviating, and then the other diaphragm is hot-pressed and compounded on the other side of the pole piece through the second hot-pressing mechanism.
According to some embodiments of the invention, the rolled portion is provided as a circular plate structure having a diameter larger than a diameter of the press roll.
According to some embodiments of the present invention, a plurality of the rolled portions are arranged at equal intervals in an axial direction of the press roll, and the lower membrane can be uniformly and locally laminated to the pole piece.
According to the pole piece compounding method of the second embodiment of the present invention, the pole piece compounding device applied to the first embodiment comprises the following steps: positioning the pole piece on the lower diaphragm through the positioning mechanism, and hot-pressing and compounding the lower diaphragm and the pole piece; and (5) hot-pressing and compounding the upper diaphragm and the pole piece.
The technical scheme at least has the following beneficial effects: the hot pressing complex is carried out to the diaphragm substep of pole piece both sides, and earlier compound diaphragm down, compound diaphragm again, can be through positioning mechanism with the pole piece location diaphragm down during compound diaphragm, when compound diaphragm, the diaphragm is automatic to the pole piece location down to whole composite process pole piece all can not take place the skew, and compound precision improves, effectively promotes the yields.
According to some embodiments of the invention, the step of hot press compounding the lower membrane with the pole piece comprises: feeding pole pieces; feeding by a lower diaphragm and synchronously conveying with the pole piece; and carrying out local hot-pressing compounding on the lower diaphragm and the pole piece through the first hot-pressing mechanism to obtain a first compounding unit.
According to some embodiments of the invention, the step of feeding the pole piece comprises: and detecting the position of the pole piece.
According to some embodiments of the invention, the lower membrane feeding step comprises: removing static electricity from the lower diaphragm; and (5) performing deviation rectification treatment on the lower diaphragm.
According to some embodiments of the invention, the step of hot press compounding the upper membrane with the pole piece comprises: feeding by an upper diaphragm and synchronously conveying with the first composite unit; preheating an upper diaphragm and the first composite unit; and carrying out integral hot-pressing compounding on the upper diaphragm, the lower diaphragm and the pole piece through the second hot-pressing mechanism to obtain a second compounding unit.
According to some embodiments of the invention, the step of integrally hot press-compounding the upper diaphragm, the lower diaphragm and the pole piece further comprises: and detecting the position of the pole piece in the second composite unit.
According to some embodiments of the invention, the step of feeding the upper membrane comprises: removing static electricity from the upper diaphragm; and (5) performing deviation rectification treatment on the upper diaphragm.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a pole piece combining device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a first hot pressing mechanism according to an embodiment of the present invention;
FIG. 3 is a flow chart of a pole piece compositing method in an embodiment of the invention;
FIG. 4 is a flow chart of the hot-press compounding of the lower diaphragm and the pole piece in the pole piece compounding method according to the embodiment of the present invention;
FIG. 5 is a flow chart of feeding a pole piece in hot-pressing compounding of a lower diaphragm and the pole piece according to an embodiment of the present invention;
FIG. 6 is a flow chart of feeding of a lower diaphragm in the hot-press compounding of the lower diaphragm and a pole piece according to the embodiment of the present invention;
FIG. 7 is a flow chart of hot-pressing composition of an upper diaphragm and a pole piece in the pole piece composition method according to the embodiment of the present invention;
FIG. 8 is a flow chart of the hot-press compounding of the upper diaphragm and the pole piece of the upper diaphragm and the lower diaphragm and the pole piece as a whole in the embodiment of the present invention;
fig. 9 is a flow chart of feeding the upper diaphragm in the hot-press compounding of the upper diaphragm and the pole piece according to the embodiment of the present invention.
Reference numerals:
a pole piece feeding platform 100; a first detection part 110;
a lower membrane unwinding station 200; a first reel 210; a first position sensor 220; the first rectification roller 230;
a first hot press mechanism 300; a mount 310; a heating roller 320; a heat generating tube 321; a temperature detector 322; a pressure roller 330; a rolled portion 331; an evacuation portion 332; a first motor 340; a slider 350; a first drive cylinder 360;
an upper membrane unwinding station 400; a second reel 410; a second position sensor 420; a second rectification roller 430;
a second hot press mechanism 500; a fixed base 510; an upper roller 520; a lower roller 530; a second motor 540; a second drive cylinder 550; a lower heating plate 560; an upper heating plate 570; a third drive cylinder 580; and a second detecting member 590.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, a first embodiment of the present invention provides a pole piece compounding apparatus, including a pole piece feeding platform 100, a lower membrane unwinding station 200, a first hot pressing mechanism 300, an upper membrane unwinding station 400, and a second hot pressing mechanism 500, wherein the pole piece feeding platform 100 continuously conveys a pole piece material strip forward by means of a conveyor belt, the lower membrane unwinding station 200 is located below the pole piece feeding platform 100, and an output end of the lower membrane unwinding station is merged with an output end of the pole piece feeding platform 100 for output, the first hot pressing mechanism 300 is located at a merged output end of the pole piece feeding platform 100 and the lower membrane unwinding station 200, the upper membrane unwinding station 400 is located above the first hot pressing mechanism 300, and an output end of the upper membrane unwinding station 400 is merged with an output end of the first hot pressing mechanism 300 for output, the second hot pressing mechanism 500 is located at a merged output end of the upper membrane unwinding station 400 and the first hot pressing mechanism 300, the lower membrane unwinding station 200 prestores the lower membrane material strip through the first reel 210 and continuously outputs the lower membrane material strip upwards, and similarly, the upper membrane unwinding station 400 prestores the upper membrane material strip through the second reel 410 and continuously outputs the upper membrane material strip downwards.
Wherein, a positioning mechanism (not shown in the figure) is arranged above the pole piece feeding platform 100, the positioning mechanism is set as a mechanical arm or other structural forms, and in the process of hot-pressing the lower diaphragm through the first hot-pressing mechanism 300, the mechanical arm can keep the pole piece pressed against the lower diaphragm, so as to prevent the pole piece from shifting.
The first hot press mechanism 300 includes a mounting base 310, a heating roller 320 and a pressure roller 330, the heating roller 320 is rotatably mounted on the mounting base 310, an end of the heating roller 320 is connected to an output shaft of a first motor 340, generally, a heating pipe 321 and a temperature detector 322 are disposed in the heating roller 320 to detect a real-time temperature of the heating roller 320 to avoid overheating, the pressure roller 330 is disposed on an upper side of the heating roller 320, the pressure roller 330 is slidably connected to the mounting base 310 through a slider 350 in an up-down direction, the pressure roller 330 is rotatably connected to the slider 350, the slider 350 is connected to a first driving cylinder 360, such as an air cylinder, capable of driving the pressure roller 330 to move in the up-down direction to pressurize the pole piece during compounding; the outer side of the press roller 330 is provided with at least two rolling parts 331, the at least two rolling parts 331 are arranged at intervals along the axial direction of the press roller 330, a clearance part 332 is formed between every two adjacent rolling parts 331, the clearance part 332 can avoid a positioning mechanism, the positioning mechanism is located in the clearance part 332, so that the positioning mechanism keeps the pole piece pressed against the lower diaphragm, the rolling parts 331 are matched with the heating roller 320 to locally compound the pole piece and the diaphragm in a hot-pressing mode, specifically, three rolling parts 331 are arranged, the three rolling parts 331 are respectively matched with the heating roller 320, three positions of the lower diaphragm are all pre-compounded on the pole piece, the positioning effect of the lower diaphragm on the pole piece can be enhanced in the next compounding step, and the compounding accuracy is improved.
The second hot pressing mechanism 500 comprises a fixed seat 510, an upper roller 520 and a lower roller 530, the lower roller 530 is rotatably mounted on the fixed seat 510 and is driven to rotate by a second motor 540, the upper roller 520 is arranged above the lower roller 530, the upper roller 520 is connected with a second driving cylinder 550, such as an air cylinder, and can drive the upper roller 520 to move in the up-and-down direction so as to pressurize in the compounding process, at least one of the upper roller 520 and the lower roller 530 is subjected to electromagnetic heating, and the upper roller 520 and the lower roller 530 are matched to realize integral hot pressing compounding on an upper diaphragm, a pole piece and a lower diaphragm.
Firstly, carry out local hot pressing complex with diaphragm and pole piece down through first hot pressing mechanism 300, during the complex, positioning mechanism synchronous motion and with the diaphragm under the pole piece location, prevent that the pole piece from taking place the skew, rethread second hot pressing mechanism 500 is with last diaphragm, pole piece and lower diaphragm carry out whole hot pressing complex, because the diaphragm substep of pole piece both sides is gone on, the upside that the pole piece can be followed in the first complex is through positioning mechanism location pole piece, during the second time is compound, the diaphragm is automatic to the pole piece location down, thereby whole complex process pole piece all can not take place the skew, compound precision improves, effectively promote the yields.
Referring to fig. 2, in some embodiments, the rolling portion 331 is configured as a circular plate structure, and the diameter of the circular plate structure is greater than that of the pressing roller 330, so that a space-avoiding portion 332 is formed between two adjacent circular plate structures, which facilitates a positioning mechanism to position a pole piece during a compounding process, prevents the pole piece from shifting, and improves compounding accuracy.
Referring to fig. 2, in some embodiments, the plurality of rolling portions 331 are arranged at equal intervals along the axial direction of the pressing roller 330, that is, three rolling portions 331 are respectively located at two side edges and a middle position of the pole piece, so that both the two side edges and the middle portion of the lower membrane can be pre-compounded on the pole piece, the positioning effect of the lower membrane on the pole piece can be enhanced in the next compounding step, and the compounding accuracy is improved.
Referring to fig. 3, an embodiment of the second aspect of the present invention further provides a pole piece compounding method, which is applied to the pole piece compounding device, and includes the following steps:
s100: positioning the pole piece on the lower diaphragm through a positioning mechanism, and hot-pressing and compounding the lower diaphragm and the pole piece;
s200: and (5) hot-pressing and compounding the upper diaphragm and the pole piece.
The hot pressing complex is carried out to the diaphragm substep of pole piece both sides, and earlier compound diaphragm down, compound diaphragm again, can be through positioning mechanism with the pole piece location diaphragm down during compound diaphragm, when compound diaphragm, the diaphragm is automatic to the pole piece location down to whole composite process pole piece all can not take place the skew, and compound precision improves, effectively promotes the yields.
Wherein, during the specific operation, the pole piece material belt and the lower diaphragm material belt synchronously enter the first hot-pressing mechanism 300, the first driving cylinder 360 drives the press roller 330 to move downwards, so that the press roller 330 and the heating roller 320 press the lower diaphragm and the pole piece, the first motor 340 drives the heating roller 320 to rotate and convey the pole piece forwards, meanwhile, the positioning mechanism (i.e. the mechanical arm) always keeps the pole piece pressed against the lower diaphragm to prevent the pole piece from shifting, after the lower diaphragm is compounded, the lower diaphragm synchronously enters the second hot-pressing mechanism 500 with the upper diaphragm, at this time, the lower diaphragm can position the pole piece, the second driving cylinder 550 drives the upper roller 520 to move downwards, the second motor 540 drives the lower roller 530 to rotate, the upper roller 520 and the lower roller 530 are matched to realize the hot-pressing compounding of the upper diaphragm and the pole piece, and simultaneously, the lower diaphragm and the pole piece are further hot-pressing compounding of the lower diaphragm and the pole piece, thereby obtaining the pole piece with both sides compounded with the diaphragm, and the whole compounding process can position the pole piece, the pole piece can not deviate, the composite precision is improved, and the yield is effectively improved.
Referring to fig. 4, in some embodiments, the step of hot press-compounding the lower separator with the pole piece in S100 includes the steps of:
s110: feeding pole pieces;
s120: feeding by a lower diaphragm and synchronously conveying with the pole piece;
s130: the first hot-pressing mechanism 300 is used for performing local hot-pressing compounding on the lower diaphragm and the pole piece to obtain a first compounding unit.
In the step S130, the lower diaphragm and the pole piece are subjected to local hot-pressing compounding, on one hand, a positioning mechanism is convenient to abut against a part which is not subjected to hot-pressing compounding so as to position the pole piece in the process of compounding the lower diaphragm, on the other hand, the lower diaphragm and the pole piece are pre-compounded, and the lower diaphragm can position the pole piece in the process of compounding the upper diaphragm in the next step, so that the pole piece can be positioned in the whole compounding process, the pole piece cannot deviate, the compounding precision is improved, and the yield is effectively improved.
During the concrete operation, pole piece feeding platform 100 lasts to first hot pressing mechanism 300 and carries the pole piece material area, diaphragm unreels station 200 down and lasts to first hot pressing mechanism 300 and carries lower diaphragm material area, and the pole piece material area gets into first hot pressing mechanism 300 with lower diaphragm material area in step, positioning mechanism supports the pole piece material area and presses in lower diaphragm material area, realize locating the pole piece, rolling portion 331 and the cooperation of warming mill 320 in the first hot pressing mechanism 300 carry out preliminary hot pressing complex to pole piece and lower diaphragm, obtain first composite unit, in next step, lower diaphragm in the first composite unit can fix a position the pole piece, effectively prevent that the pole piece from shifting.
Referring to fig. 5, in some embodiments, the pole piece feeding of step S110 includes the following steps:
s111: and detecting the position of the pole piece.
During specific operation, the first detecting part 110 is disposed above the pole piece feeding platform 100, generally speaking, the first detecting part 110 is a camera, and can photograph the pole piece and transmit the photographed pole piece to a control device (not shown in the figure) of the apparatus, such as a computer, so as to obtain initial position data of the pole piece, and facilitate subsequent use as a reference to determine whether the pole piece is deviated.
Referring to fig. 6, in some embodiments, the lower membrane feeding in step S120 includes the steps of:
s121: removing static electricity from the lower diaphragm;
s122: and (5) performing deviation rectification treatment on the lower diaphragm.
During specific operation, the output that lower diaphragm unreeled station 200 is provided with first position inductor 220 and first deviation roller 230 of rectifying, the operation of destaticing is earlier carried out after first reel 210 output in lower diaphragm material area, ensure operation safety, the diaphragm unreels the output of station 200 under, the position in diaphragm material area is down detected to first position inductor 220, judge whether the pole piece is located the middle part of diaphragm down, whether the diaphragm can cover the pole piece completely promptly, if the position in diaphragm material area has the deviation down, first deviation roller 230 then removes certain distance, the discharge position in diaphragm material area under the adjustment, the diaphragm can cover the pole piece completely after guaranteeing to compound, guarantee composite quality, improve the yields.
Referring to fig. 7, in some embodiments, the step S200 of hot press-compounding the upper diaphragm with the pole piece includes the steps of:
s210: feeding by an upper diaphragm and synchronously conveying with the first composite unit;
s220: preheating the upper diaphragm and the first composite unit;
s230: the upper diaphragm, the lower diaphragm and the pole piece are subjected to integral hot-pressing compounding through a second hot-pressing mechanism 500, so that a second compounding unit is obtained.
The upper diaphragm and the first composite unit are preheated, the quality of hot-pressing composite can be improved, the yield is improved, the upper diaphragm, the lower diaphragm and the pole piece are subjected to integral hot-pressing composite, the lower diaphragm can position the pole piece, the pole piece is prevented from shifting, the composite precision is improved, and the yield is further improved.
In a specific operation, the second hot pressing mechanism 500 is further provided with a lower heating plate 560 and an upper heating plate 570, the lower heating plate 560 and the upper heating plate 570 are arranged between the first hot pressing mechanism 300 and the second hot pressing mechanism 500, the upper heating plate 570 is positioned above the lower heating plate 560, a heating cavity (not shown in the figure) is formed between the upper heating plate 570 and the lower heating plate 560, and the lower heating plate 560 is connected with a third driving cylinder 580 so as to adjust a distance between the lower heating plate 560 and the upper heating plate 570, thereby changing a preheating effect; the first compound unit that obtains by first hot press mechanism 300 pre-recombination and the last diaphragm material area of last diaphragm unwinding station 400 output pass the heating chamber in step, and carry to second hot press mechanism 500, in the heating chamber, first compound unit and last diaphragm all do not all with lower hot plate 560 and last hot plate 570 contact, utilize the heat radiation to preheat first compound unit and last diaphragm, so that subsequent further compound, improve composite quality, after preheating, go up roller 520 and lower roll 530 cooperation and carry out whole hot pressing complex to first compound unit and last diaphragm, be about to diaphragm and the whole hot pressing complex of last diaphragm in the both sides of pole piece down, thereby obtain second compound unit, the product promptly, in preheating and whole composite process, lower diaphragm homoenergetic fixes a position the pole piece, the pole piece can not take place the aversion, compound precision improves, effectively promote the yields.
Referring to fig. 8, in some embodiments, the step of integrally hot-press-compounding the upper diaphragm, the lower diaphragm and the pole piece in step S230 includes the following steps:
s231: and detecting the position of the pole piece in the second composite unit.
During specific operation, a second detection part 590 is arranged above the output end of the second hot pressing mechanism 500, generally speaking, the second detection part 590 is also set as a camera, and can photograph the pole piece in the second composite unit and transmit the photographed pole piece to a control device of the equipment, such as a computer, so as to obtain real-time position data of the compounded pole piece, the control device compares the real-time position data with initial position data, if the data are the same, it can be determined that the pole piece is not deviated, the second composite unit is a good product, and if the data are different, it is necessary to further determine whether the second composite unit is a good product.
Referring to fig. 9, in some embodiments, the feeding of the upper membrane in step S210 includes the steps of:
s211: removing static electricity from the upper diaphragm;
s212: and (5) performing deviation rectification treatment on the upper diaphragm.
During specific operation, the output end of the upper diaphragm unwinding station 400 is provided with a second position sensor 420 and a second deviation correction roller 430, the upper diaphragm material belt is subjected to static electricity removal operation after being output from a second reel 410, operation safety is ensured, the output end of the upper diaphragm unwinding station 400 is used for detecting the position of the upper diaphragm material belt by the second position sensor 420 and comparing the position with data of the first position sensor 220, whether the alignment degree of the upper diaphragm and the lower diaphragm is within a range of +/-0.3 mm or not is judged, if the alignment degree exceeds the range, the second deviation correction roller 430 moves for a certain distance, the discharging position of the upper diaphragm material belt is adjusted, the upper diaphragm is ensured to be aligned with the lower diaphragm, the lower diaphragm and the upper diaphragm can completely cover the pole piece after compounding, compounding quality is ensured, and the yield is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Pole piece equipment complex, its characterized in that includes:
the positioning mechanism is used for positioning the pole piece;
the first hot pressing mechanism comprises a mounting seat, a heating roller and a pressing roller, wherein the heating roller and the pressing roller are both rotatably mounted on the mounting seat, the pressing roller is located on one side of the heating roller, the pressing roller is provided with at least two rolling parts, the rolling parts are arranged at intervals along the axial direction of the pressing roller, a clearance part is formed between every two adjacent rolling parts, the positioning mechanism is located on one side of the first hot pressing mechanism, the clearance part is used for avoiding the positioning mechanism, and the rolling parts are matched with the heating roller to hot press the pole piece;
and the second hot-pressing mechanism is arranged along the conveying direction of the pole piece in sequence, and is used for hot-pressing the pole piece.
2. The pole piece compounding device of claim 1, wherein: the rolling part is of a circular plate structure, and the diameter of the circular plate structure is larger than that of the pressing roller.
3. The pole piece compounding device of claim 1, wherein: the plurality of rolled portions are arranged at equal intervals in an axial direction of the press roll.
4. A pole piece compounding method is applied to pole piece compounding equipment as claimed in any one of claims 1 to 3, and is characterized by comprising the following steps:
positioning the pole piece on the lower diaphragm through the positioning mechanism, and hot-pressing and compounding the lower diaphragm and the pole piece;
and (5) hot-pressing and compounding the upper diaphragm and the pole piece.
5. The pole piece compounding method of claim 4, wherein: the step of hot-pressing and compounding the lower diaphragm and the pole piece comprises the following steps:
feeding pole pieces;
feeding by a lower diaphragm and synchronously conveying with the pole piece;
and carrying out local hot-pressing compounding on the lower diaphragm and the pole piece through the first hot-pressing mechanism to obtain a first compounding unit.
6. The pole piece compounding method of claim 5, wherein: the pole piece feeding step comprises the following steps: and detecting the position of the pole piece.
7. The pole piece compounding method of claim 5, wherein: the lower membrane feeding step comprises:
removing static electricity from the lower diaphragm;
and (5) performing deviation rectification treatment on the lower diaphragm.
8. The pole piece compounding method of claim 5, wherein: the step of hot-pressing and compounding the upper diaphragm and the pole piece comprises the following steps:
feeding by an upper diaphragm and synchronously conveying with the first composite unit;
preheating an upper diaphragm and the first composite unit;
and carrying out integral hot-pressing compounding on the upper diaphragm, the lower diaphragm and the pole piece through the second hot-pressing mechanism to obtain a second compounding unit.
9. The pole piece compounding method of claim 8, wherein: the step of carrying out integral hot-pressing compounding on the upper diaphragm, the lower diaphragm and the pole piece further comprises the following steps: and detecting the position of the pole piece in the second composite unit.
10. The pole piece compounding method of claim 8, wherein: the feeding step of the upper diaphragm comprises the following steps:
removing static electricity from the upper diaphragm;
and (5) performing deviation rectification treatment on the upper diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588489.9A CN113306264A (en) | 2021-05-28 | 2021-05-28 | Pole piece compounding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588489.9A CN113306264A (en) | 2021-05-28 | 2021-05-28 | Pole piece compounding device and method |
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| CN113306264A true CN113306264A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110588489.9A Pending CN113306264A (en) | 2021-05-28 | 2021-05-28 | Pole piece compounding device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023197167A1 (en) * | 2022-04-12 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Control method and stacking system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119009A (en) * | 2015-08-18 | 2015-12-02 | 深圳吉阳智云科技有限公司 | Battery core cladding manufacturing method |
| CN105870512A (en) * | 2016-05-29 | 2016-08-17 | 合肥国轩高科动力能源有限公司 | Transfer positioning device and method for wound laminated battery pole piece |
-
2021
- 2021-05-28 CN CN202110588489.9A patent/CN113306264A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119009A (en) * | 2015-08-18 | 2015-12-02 | 深圳吉阳智云科技有限公司 | Battery core cladding manufacturing method |
| CN105870512A (en) * | 2016-05-29 | 2016-08-17 | 合肥国轩高科动力能源有限公司 | Transfer positioning device and method for wound laminated battery pole piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023197167A1 (en) * | 2022-04-12 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Control method and stacking system |
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