CN109244554B - Z-shaped lamination equipment and process for lithium ion battery - Google Patents
Z-shaped lamination equipment and process for lithium ion battery Download PDFInfo
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- CN109244554B CN109244554B CN201811109301.2A CN201811109301A CN109244554B CN 109244554 B CN109244554 B CN 109244554B CN 201811109301 A CN201811109301 A CN 201811109301A CN 109244554 B CN109244554 B CN 109244554B
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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
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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
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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
- 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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Abstract
The invention discloses a Z-shaped lamination device and a process for a lithium ion battery, wherein the Z-shaped lamination device for the lithium ion battery comprises: the diaphragm is provided with a plurality of negative plates on the upper surface at regular intervals, and a plurality of positive plates on the lower surface; a hot-pressing compounding device; a diaphragm severing device; the lamination mechanism and the Z-shaped lamination process of the lithium ion battery comprise the following steps: (1) firstly, die cutting or cutting the positive electrode roll and the negative electrode roll, then respectively bonding the die-cut or cut negative electrode sheet and positive electrode sheet on the upper surface and the lower surface of the diaphragm, and distributing the positive electrode sheet and the negative electrode sheet in a staggered manner; (2) then carrying out hot-pressing compounding on the diaphragm, each negative plate and each positive plate; (3) finally, Z-shaped folding is carried out and the diaphragm is cut. According to the invention, seamless butt joint between die cutting or cutting and Z-shaped lamination is realized, a pole piece transfer device and facilities are saved, and the pole piece is fixed in a hot-pressing compounding mode, so that the risk of pole piece dislocation in the transfer process of a bare cell is reduced.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a Z-shaped lamination device and a Z-shaped lamination process for a lithium ion battery.
Background
Lithium ion batteries are the hottest new energy storage devices at present, and in the battery assembling process, the assembling of bare cells is one of the most important processes. The bare cell is equipped with three basic requirements: 1. the cathode completely wraps the anode; 2. the membrane completely wraps the coating; 3. the electrodes are centrally aligned. The naked electric core assembly technology is divided into two large technical routes of winding and lamination, wherein the winding is divided into full-tab winding and multi-tab winding, and the lamination is divided into pocket type slicing and Z-shaped lamination.
The zigzag lamination technique is one of the most simple and easy lamination processes. First, the positive and negative electrode sheets are die-cut or cut into individual pieces, as shown in fig. 1.
Then, the diaphragm moves in a zigzag manner, and each time the diaphragm is folded, the manipulator grabs one electrode sheet and places the electrode sheet on the diaphragm, as shown in fig. 2.
The above lamination has two problems:
(1) the die cutting or cutting process and the lamination process are separated, and under automatic equipment, the transfer of the pole piece needs a longer logistics line, so that the purchase and maintenance cost is high; or the efficiency is low because the pole pieces are transferred by the material box;
(2) after the naked electric core is manufactured in the lamination process, the pole piece is easy to be dislocated before the pole lug is welded because no acting force exists between the pole piece and the diaphragm, and potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the problems, and provides a lithium ion battery Z-shaped lamination device and a process thereof.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a lithium ion battery zigzag lamination apparatus, the lithium ion battery zigzag lamination apparatus comprising:
the diaphragm is provided with a plurality of negative plates on the upper surface, a plurality of positive plates on the lower surface, and the positive plates and the negative plates are distributed in a staggered manner;
the hot-pressing composite device can carry out hot-pressing composite on the diaphragm, each negative plate and each positive plate;
the lamination mechanism is used for enabling each section of diaphragm after being cut off to enter the lamination mechanism for Z-shaped folding and cutting the diaphragm;
and the diaphragm cutting device cuts the diaphragm through the diaphragm cutting device after the lamination mechanism laminates the diaphragm.
In a preferred embodiment of the present invention, the separator has an adhesive layer on each of the upper and lower surfaces thereof, and the negative electrode sheet and the positive electrode sheet are respectively adhered and fixed to the separator via the adhesive layer.
In a preferred embodiment of the present invention, the lithium ion battery zigzag lamination apparatus further includes two release film decoiling devices and two release film winding devices, the two release film decoiling devices are symmetrically disposed on the upper and lower sides of the separator, the release film decoiling devices can lay the release film on the upper surface or the lower surface of the separator and contact with each negative electrode plate or positive electrode plate, the two release film winding devices are symmetrically disposed on the upper and lower sides of the separator and are located on one side of the thermal compression compounding device, and the release film winding devices can retract the release film laid on the upper surface or the lower surface of the separator.
In a preferred embodiment of the present invention, the hot-pressing and laminating device includes two metal rollers with heating and pressurizing functions, the two metal rollers are symmetrically disposed on the upper and lower sides of the separator, and the metal rollers are located between the release film uncoiling device and the release film coiling device.
A Z-shaped lamination process for a lithium ion battery comprises the following steps:
(1) firstly, die cutting or cutting the positive electrode roll and the negative electrode roll, then respectively bonding the die-cut or cut negative electrode sheet and positive electrode sheet on the upper surface and the lower surface of the diaphragm, and distributing the positive electrode sheet and the negative electrode sheet in a staggered manner;
(2) then carrying out hot-pressing compounding on the diaphragm, each negative plate and each positive plate;
(3) finally, Z-shaped folding is carried out and the diaphragm is cut.
In a preferred embodiment of the present invention,
and after die cutting or cutting the positive electrode roll and the negative electrode roll, visual or CCD positioning is carried out through a manipulator, and the die-cut or cut negative electrode sheet and the positive electrode sheet are respectively placed on the upper surface and the lower surface of the diaphragm.
In a preferred embodiment of the present invention,
before the diaphragm is subjected to hot-press compounding with each negative plate and each positive plate, one layer of release film can be respectively paved on the upper surface and the lower surface of the diaphragm, the release film is respectively contacted with each negative plate and each positive plate, and the release film paved on the upper surface and the lower surface of the diaphragm is recovered after the hot-press compounding.
In a preferred embodiment of the present invention,
before the diaphragm is hot-pressed and compounded with the positive plate and the negative plate, the diaphragm is corrected by a pair of kneading rollers, then the diaphragm is hot-pressed and compounded by a pair of metal rollers with heating and pressurizing functions, the distance between the circle centers of the kneading rollers and the metal rollers is smaller than the width of the pole piece, the heating temperature of the metal rollers is 25-120 ℃, and the pressure is 100-500 kgf.
In a preferred embodiment of the invention, the membrane after the hot-press compounding is held by a mechanical arm to the first negative plate on the membrane, and is drawn into the lamination mechanism for lamination, and the lamination mechanism and the membrane are fixedly laminated.
In a preferred embodiment of the invention, a buffer space is reserved between the lamination and the hot-press lamination.
The invention has the beneficial effects that:
according to the invention, seamless butt joint between die cutting or cutting and Z-shaped lamination is realized, a pole piece transfer device and facilities are saved, and the pole piece is fixed in a hot-pressing compounding mode, so that the risk of pole piece dislocation in the transfer process of a bare cell is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a positive plate and a negative plate;
FIG. 2 is a process flow diagram of a prior art zigzag lamination;
FIG. 3 is a schematic diagram of the operation of the present invention;
FIG. 4 is a side view of the diaphragm after thermal compression bonding;
FIG. 5 is a top view of the membrane after thermal compression bonding;
fig. 6 is a lamination schematic of a lamination mechanism.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 3 to 6, the zigzag lamination apparatus for a lithium ion battery according to the present invention includes a separator 100, a thermal compression bonding apparatus 200, a separator cutting apparatus 300, and a lamination mechanism 400.
And a separator 100 for integrally connecting the plurality of negative electrode tabs and the plurality of positive electrode tabs and ensuring that the negative electrode tabs and the positive electrode tabs are alternately arranged thereon.
Specifically, the upper surface and the lower surface of the separator 100 may be respectively provided with an adhesive layer, and the negative electrode sheet and the positive electrode sheet after die cutting or cutting of the positive electrode roll 710 and the negative electrode roll 720 are fixed on the upper surface and the lower surface of the separator 100 by an adhesive method.
The tie layer may specifically be a PVDF coating.
A manipulator may be provided at one side of the separator 100, and the negative electrode sheet and the positive electrode sheet may be directly placed on the upper surface and the lower surface of the separator 100 by performing visual or CCD positioning using the manipulator.
The hot-pressing composite device 200 is used for hot-pressing and compositing each negative plate and each positive plate arranged on the upper surface and the lower surface of the diaphragm 100 with the diaphragm 100, so that the negative plates, the positive plates and the diaphragm 100 can be adhered together, the risk of electrode plate dislocation of a naked battery cell in the moving process can be reduced, and the internal resistance of the battery cell can be reduced by gaps between the electrode plates and the diaphragm.
The thermal pressing and laminating apparatus 200 specifically includes two metal rollers with heating and pressing functions, and the two metal rollers are symmetrically disposed on the upper and lower sides of the diaphragm 100.
In addition, a pair of kneading rollers may be provided at one side of the thermal compression composite apparatus 200, the kneading rollers being in contact with the upper surface and the lower surface of the separator 100, respectively, and the separator 100 may enter the kneading rollers before entering the thermal compression composite apparatus 200, so that the negative electrode sheet and the positive electrode sheet on the separator 100 may be prevented from being misaligned before thermal compression composite.
In order to prevent that negative plate and positive plate when carrying out the hot pressing complex, damage negative plate and positive plate, this application still includes two from type membrane unwinding unit 500 and two from type membrane coiling mechanism 600.
Two are from type membrane unwinding unit 500 symmetry setting in diaphragm 100 upper and lower both sides, leave type membrane unwinding unit 500 and can lay the type membrane in the upper surface or the lower surface of diaphragm 100 to contact with each negative pole piece or positive plate respectively, diaphragm 100 can carry out hot pressing complex with the positive plate of negative pole piece together like this, and protect the positive plate of negative pole piece.
Two from type membrane coiling mechanism 600 symmetry settings both sides about diaphragm 100 to the hot pressing set composite is located from type membrane coiling mechanism 600 and from between type membrane unwinding unit 500, is used for withdrawing from the type membrane that the tiling will pass through after the hot pressing is compound from type membrane coiling mechanism 600 on the upper surface of diaphragm 100 and the lower surface, thus does not influence subsequent disconnected cutting and lamination.
And the lamination mechanism 400 is used for folding the diaphragm 100 in a Z shape to prepare a naked electric core, and the gluing is finished.
The separator cutting device 300 is provided on the stacking mechanism 400 side, and is configured to cut the cell stacked by the stacking mechanism 400 and cut the separator 100.
Based on the implementation of the above scheme, the present application further provides a zigzag lamination process for a lithium ion battery, which includes the following steps:
(1) firstly, die cutting or cutting is carried out on the positive electrode roll 710 and the negative electrode roll 720, then, the die-cut or cut negative electrode piece and the positive electrode piece are respectively adhered to the upper surface and the lower surface of the diaphragm 100 at regular intervals, and the positive electrode piece and the negative electrode piece are distributed in a staggered manner;
(2) then, carrying out hot-pressing compounding on the diaphragm 100 and each negative plate and each positive plate;
(3) finally, Z-shaped folding is carried out and the diaphragm is cut.
After the positive electrode roll and the negative electrode roll are subjected to die cutting or cutting, visual or CCD positioning is carried out through a manipulator, and the die-cut or cut negative electrode plate and positive electrode plate are respectively placed on the upper surface and the lower surface of the diaphragm at equal intervals or unequal intervals, so that the working efficiency can be greatly improved.
Before the diaphragm 100 is subjected to hot-press compounding with each negative plate and each positive plate, a layer of release film can be respectively and equally paved on the upper surface and the lower surface of the diaphragm 100, the release film is respectively contacted with each negative plate and each positive plate, and the release film paved on the upper surface and the lower surface of the diaphragm 100 is withdrawn after the hot-press compounding.
In addition, before the diaphragm is thermally pressed and compounded with the positive plate and the negative plate, the negative plate and the positive plate on the diaphragm 100 are corrected through a pair of kneading rollers, so that dislocation of the negative plate and the positive plate before the thermal pressing and compounding can be prevented, then the thermal pressing and compounding are performed through a pair of metal rollers with heating and pressurizing functions, the distance between the circle centers of the kneading rollers and the metal rollers is smaller than the width of the pole pieces, the heating temperature of the metal rollers is 25-120 ℃, and the pressure is 100-500 kgf.
Thus, since the separator 100 is provided with adhesive layers, such as PVDF, CMC, or a mixture thereof, or a gel-type substance, on the upper and lower surfaces thereof, the adhesive layers increase their viscosity by being heated, and the negative and positive electrode sheets are pressed against the separator 100 by the metal roller heated and pressurized, and the firmness is very high.
According to the process, hot-pressing compounding is adopted before lamination, so that certain bonding force exists between the negative plate and the diaphragm 100, and the pole pieces cannot generate small-amplitude displacement in the battery cell in the moving process of the battery cell. When the electric core compounded by hot pressing absorbs the electrolyte, the electric core is soaked by the diaphragm and then enters the micropore structure of the electrode layer through the capillary action. In the cell which is not subjected to hot-pressing compounding, an air layer exists between the pole piece and the diaphragm, and the electrolyte can enter the electrode microporous structure only by filling the air layer. Meanwhile, the existence of the air layer increases the transmission distance of lithium ions, and the transmission distance is in direct proportion to the internal resistance of the battery cell.
Specifically, the separator 100 after thermal compression lamination can directly grasp the first negative electrode sheet on the separator 100 by a manipulator and pull the first negative electrode sheet into the lamination mechanism 400 for lamination.
This technology adopts the lamination mode to carry out the lamination for lamination mechanism 400 and diaphragm 100 all adopt fixed mode to carry out the lamination, specifically can set up a negative pole lamination compression roller 410 above lamination mechanism 400, is equipped with a positive pole lamination compression roller 110 in diaphragm 100 one side, can carry out the zigzag stack with the diaphragm 100 of putting down perpendicularly through the cooperation of negative pole lamination compression roller 410 and positive pole lamination compression roller 110, accomplishes electric core lamination, like this for among the prior art: by fixing the lamination mechanism 400, the lamination efficiency and the lamination effect are greatly improved by performing zigzag lamination by reciprocating the diaphragm 100 or by fixing the diaphragm 100 and performing zigzag lamination by reciprocating the lamination mechanism 400.
In addition, a buffer space is reserved between the lamination step and the hot-pressing compounding step of the lamination mechanism 400, so that the negative plate can be prevented from being broken by a mechanical arm.
Through the implementation of the process, the seamless butt joint of the die cutting and the lamination is realized, the pole pieces do not need to be transported by a material box, the pole pieces are transported without an logistics line, and the cross contamination of the positive pole piece and the negative pole piece is greatly reduced. Through hot-pressing compounding, the pole pieces and the diaphragm 100 are fixed together, so that the strength of the battery cell is improved, the loose apparent structure of the traditional laminated battery cell is improved, and the dislocation risk of the pole pieces of the battery cell is reduced. Meanwhile, the air layer is not arranged between the pole piece and the diaphragm of the compounded battery cell, so that the mass transfer distance of lithium ions is reduced, and the internal resistance of the battery cell can be reduced to a certain extent.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A lithium ion battery zigzag lamination apparatus, the lithium ion battery zigzag lamination apparatus comprising:
the diaphragm is provided with a plurality of negative plates on the upper surface, a plurality of positive plates on the lower surface, and the positive plates and the negative plates are distributed in a staggered manner;
the hot-pressing compounding device is used for carrying out hot-pressing compounding on each negative plate and each positive plate which are arranged on the upper surface and the lower surface of the diaphragm and the diaphragm, and the negative plates and the positive plates can be adhered to the diaphragm;
the lamination mechanism is used for enabling each section of diaphragm after being cut off to enter the lamination mechanism for Z-shaped folding and cutting the diaphragm;
and the diaphragm cutting device cuts the diaphragm through the diaphragm cutting device after the lamination mechanism laminates the diaphragm.
2. The lithium ion battery zigzag lamination apparatus according to claim 1, wherein the separator has bonding layers on the upper surface and the lower surface, and the negative electrode plate and the positive electrode plate are respectively bonded and fixed on the separator through the bonding layers.
3. The lithium ion battery zigzag lamination apparatus according to claim 1, further comprising two release film decoiling devices and two release film winding devices, wherein the two release film decoiling devices are symmetrically disposed on the upper and lower sides of the separator, the release film decoiling devices can lay the release film on the upper surface or the lower surface of the separator and respectively contact with each negative electrode plate or positive electrode plate, the two release film winding devices are symmetrically disposed on the upper and lower sides of the separator and are located on one side of the thermal compression compounding device, and the release film winding devices can take back the release film laid on the upper surface or the lower surface of the separator after thermal compression compounding.
4. The lithium ion battery zigzag lamination apparatus according to claim 3, wherein the hot-pressing and laminating device comprises two metal rollers with heating and pressing functions, the two metal rollers are symmetrically arranged on the upper and lower sides of the separator, and the metal rollers are located between the release film uncoiling device and the release film coiling device.
5. A zigzag lamination process for lithium ion batteries, characterized in that the zigzag lamination equipment for lithium ion batteries according to any one of claims 1 to 4 is adopted, and the zigzag lamination process for lithium ion batteries comprises the following steps:
(1) firstly, die cutting or cutting the positive electrode roll and the negative electrode roll, then respectively bonding the die-cut or cut negative electrode sheet and positive electrode sheet on the upper surface and the lower surface of the diaphragm, and distributing the positive electrode sheet and the negative electrode sheet in a staggered manner;
(2) then carrying out hot-pressing compounding on each negative plate and each positive plate arranged on the upper surface and the lower surface of the diaphragm and the diaphragm so as to adhere the negative plates, the positive plates and the diaphragm together;
(3) finally, Z-shaped folding is carried out and the diaphragm is cut.
6. The zigzag lamination process for lithium ion batteries according to claim 5,
and after die cutting or cutting the positive electrode roll and the negative electrode roll, visual or CCD positioning is carried out through a manipulator, and the die-cut or cut negative electrode sheet and the positive electrode sheet are respectively placed on the upper surface and the lower surface of the diaphragm.
7. The zigzag lamination process of claim 5, wherein before the thermal compression compounding of the separator with each negative electrode plate and each positive electrode plate, a layer of release film is respectively laid on the upper surface and the lower surface of the separator, the release film is respectively contacted with each negative electrode plate and each positive electrode plate, and after the thermal compression compounding, the release films laid on the upper surface and the lower surface of the separator are retracted.
8. The zigzag lamination process for lithium ion batteries according to claim 5,
before the diaphragm is hot-pressed and compounded with the positive plate and the negative plate, the diaphragm is corrected by a pair of kneading rollers, then the diaphragm is hot-pressed and compounded by a pair of metal rollers with heating and pressurizing functions, the distance between the circle centers of the kneading rollers and the metal rollers is smaller than the width of the pole piece, the heating temperature of the metal rollers is 25-120 ℃, and the pressure is 100-500 kgf.
9. The zigzag lamination process for lithium ion batteries according to claim 5,
the diaphragm after hot-pressing compounding is held by a mechanical arm to pull a first negative plate on the diaphragm into a lamination mechanism for lamination, and the lamination mechanism and the diaphragm are laminated in a fixed mode.
10. The zigzag lamination process for lithium ion batteries according to claim 9, wherein a buffer space is reserved between the lamination and the hot press lamination.
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| CN201811109301.2A CN109244554B (en) | 2018-09-21 | 2018-09-21 | Z-shaped lamination equipment and process for lithium ion battery |
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| CN201811109301.2A CN109244554B (en) | 2018-09-21 | 2018-09-21 | Z-shaped lamination equipment and process for lithium ion battery |
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Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165287B (en) * | 2019-06-11 | 2021-06-11 | 东莞塔菲尔新能源科技有限公司 | Battery cell winding device, battery cell production method and power battery |
| CN110277590B (en) * | 2019-06-28 | 2022-04-12 | 蜂巢能源科技有限公司 | Lamination method for manufacturing battery cell and battery cell pole group manufacturing equipment |
| CN110380128B (en) * | 2019-07-16 | 2020-06-30 | 蜂巢能源科技有限公司 | Die cutting lamination system and method |
| CN110364766B (en) * | 2019-07-16 | 2022-06-21 | 蜂巢能源科技有限公司 | Die cutting lamination system and method |
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| CN112297577A (en) * | 2019-07-31 | 2021-02-02 | 广东利元亨智能装备股份有限公司 | Diaphragm composite device |
| CN110459796B (en) * | 2019-08-16 | 2023-06-13 | 宁德时代新能源科技股份有限公司 | Preparation method of laminated battery cell, laminated device and system |
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| CN111769333A (en) * | 2020-06-29 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Novel lamination method based on cutting and stacking all-in-one machine |
| CN111934024B (en) * | 2020-06-30 | 2022-02-22 | 蜂巢能源科技有限公司 | Turret lamination method, turret lamination device and battery pole piece thermal composite lamination system |
| CN112234257A (en) * | 2020-09-24 | 2021-01-15 | 江苏中关村嘉拓新能源设备有限公司 | Thermal composite battery cell preparation method and system |
| CN112563581A (en) * | 2020-12-08 | 2021-03-26 | 合肥国轩高科动力能源有限公司 | Integrative device of dry film-making |
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| CN113258141A (en) * | 2021-04-01 | 2021-08-13 | 昆山聚创新能源科技有限公司 | Preparation method of laminated battery cell, laminated battery cell and lithium ion battery |
| CN113451659B (en) * | 2021-05-21 | 2022-09-30 | 广州中国科学院工业技术研究院 | Lithium battery positive and negative electrode synchronous lamination device and lamination method |
| CN114551960B (en) * | 2021-07-23 | 2024-01-05 | 万向一二三股份公司 | Lithium ion battery lamination unit, preparation method thereof and lithium ion battery comprising lithium ion battery lamination unit |
| CN113594533A (en) * | 2021-08-03 | 2021-11-02 | 蜂巢能源科技有限公司 | Battery cell, preparation method and system thereof and secondary battery |
| CN113889600B (en) * | 2021-09-30 | 2023-04-14 | 蜂巢能源科技有限公司 | Pre-lithium process, pre-lithium device, lamination process and lamination device |
| CN114024014A (en) * | 2021-10-20 | 2022-02-08 | 三一技术装备有限公司 | Lamination system of battery core pole piece |
| CN114039103B (en) * | 2021-10-26 | 2023-09-08 | 三一技术装备有限公司 | Production method and production device of winding battery core |
| CN114300754A (en) * | 2021-11-22 | 2022-04-08 | 江苏中关村嘉拓新能源设备有限公司 | Diaphragm pre-folding and stacking structure of composite lamination machine and stacking process thereof |
| CN114243087B (en) * | 2021-12-02 | 2023-07-21 | 广州工业技术研究院 | Lithium cell cuts fast and stacks all-in-one |
| SE2151603A1 (en) * | 2021-12-22 | 2023-06-23 | Northvolt Ab | Assembling device for a secondary cell |
| CN114335741B (en) * | 2021-12-29 | 2023-07-21 | 蜂巢能源科技(无锡)有限公司 | Preparation method and system of battery cell, battery cell and application of battery cell |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2747186B1 (en) * | 2012-02-28 | 2016-07-13 | Nagano Automation Co., Ltd. | Electrode body fabrication device and method |
| JP5806693B2 (en) * | 2013-02-26 | 2015-11-10 | 株式会社日立パワーソリューションズ | Multilayer battery manufacturing method and apparatus |
| CN204505323U (en) * | 2015-02-04 | 2015-07-29 | 深圳市吉阳自动化科技有限公司 | A kind of shearing device |
| CN105355962B (en) * | 2015-11-25 | 2017-12-05 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of takeup type laminated batteries |
| CN205583074U (en) * | 2016-04-22 | 2016-09-14 | 广东亿鑫丰智能装备股份有限公司 | Electricity core coiling lamination machine |
| CN106299487B (en) * | 2016-10-28 | 2019-01-08 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion laminated battery manufacturing device and manufacturing method |
| CN207651617U (en) * | 2017-11-28 | 2018-07-24 | 深圳吉阳智能科技有限公司 | A kind of lamination device of combined type laminated cell |
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2018
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