CN111769335A - Hot pressing process and hot pressing device - Google Patents
Hot pressing process and hot pressing device Download PDFInfo
- Publication number
- CN111769335A CN111769335A CN202010802814.2A CN202010802814A CN111769335A CN 111769335 A CN111769335 A CN 111769335A CN 202010802814 A CN202010802814 A CN 202010802814A CN 111769335 A CN111769335 A CN 111769335A
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- hot pressing
- logistics line
- winding core
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- 238000007731 hot pressing Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 68
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000037303 wrinkles Effects 0.000 abstract description 2
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 98
- 238000007599 discharging Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 8
- 238000004321 preservation Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of battery manufacturing, and discloses a hot-pressing process and a hot-pressing device, wherein the hot-pressing process comprises the following steps: winding the positive plate, the negative plate and the diaphragm to form a winding core; placing the winding core on a logistics line, and conveying the winding core to a hot pressing station by using the logistics line; heating the winding core on the material flow line for a preset time at a preset temperature; and carrying out hot pressing treatment on the heated winding core. Through the scheme, the hot pressing process can shorten the hot pressing time, promote the uniform distribution of the internal stress of the roll core and reduce the wrinkles in the roll core.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a hot-pressing process and a hot-pressing device.
Background
At present, in the conventional production process of lithium batteries, after a positive plate, a negative plate and a diaphragm are wound to form a winding core, the winding core needs to be subjected to hot pressing treatment and then enters an assembly line for assembly. Only after hot pressing treatment, the thickness of the roll core can be ensured to be flat, and the pole piece is tightly attached to the diaphragm.
At present, the winding cores are directly subjected to hot pressing treatment after winding, the hot pressing time of the process is usually between 60s and 120s, and the hot pressing time is long. In order to ensure the productivity, more hot pressing stations are needed to carry out hot pressing on the winding core, and the multiple hot pressing stations not only increase the equipment and energy consumption cost, but also bring about greater energy waste; the temperature of the upper hot pressing plate and the lower hot pressing plate in the process is usually between 80 ℃ and 110 ℃, the temperature of the upper hot pressing plate and the temperature of the lower hot pressing plate are higher, and the temperature of the winding core is rapidly changed suddenly under the action of the upper hot pressing plate and the lower hot pressing plate, so that the mechanical property of the interior of the winding core is inconsistent, and the interior of the winding core is easily folded.
Disclosure of Invention
The invention aims to provide a hot pressing process, which not only can shorten the hot pressing time, but also can promote the uniform stress distribution in a winding core and reduce wrinkles in the winding core.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hot pressing process comprising the steps of: winding the positive plate, the negative plate and the diaphragm to form a winding core; placing the winding core on a logistics line, and conveying the winding core to a hot pressing station by using the logistics line; heating the roll cores on the logistics line for a preset time at a preset temperature; and carrying out hot pressing treatment on the heated roll core.
As a preferable scheme of the hot pressing process, the preset temperature range for heating the winding core is set to be 100-110 ℃.
As a preferable scheme of the hot pressing process, the preset time range for heating the winding core is set to be 15min-30 min.
As a preferred scheme of the hot pressing process, the internal temperature range of the heated winding core is set to be 60-80 ℃.
As a preferable scheme of the hot pressing process, the time range of hot pressing the winding core is set to be 10s-20 s.
As the preferred scheme of a hot pressing process, the side-by-side quantity of the winding cores placed on the logistics line is set according to the productivity of the winding cores, and the winding cores are placed on the logistics line at intervals in parallel.
Another object of the present invention is to provide a hot press apparatus, which can heat a winding core before hot pressing the winding core, and can avoid great influence on the transportation of the winding core.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hot press apparatus for use in the hot press process of any one of the preceding claims, comprising: a logistics line for conveying the winding cores; the logistics line penetrates through an inner cavity of the heating furnace; the device comprises a gripping device and a discharging clamping jaw, wherein the gripping device comprises a feeding clamping jaw and a discharging clamping jaw, the feeding clamping jaw is arranged on the upstream of the heating furnace along the conveying direction of the winding core, and the discharging clamping jaw is arranged on the downstream of the heating furnace along the conveying direction of the winding core.
As a preferred scheme of the hot-pressing device, the heating furnace comprises a heat-insulating cylinder, and the logistics line penetrates through the heat-insulating cylinder.
As a preferred scheme of the hot-pressing device, the heating furnace further comprises a heating plate, and the heating plate is arranged in the inner cavity of the heat-insulating cylinder.
As a hot press unit's preferred scheme, the commodity circulation line includes frame, transmission shaft, driven shaft and conveyer belt, the transmission shaft with the driven shaft rotate connect in the frame, the driven shaft with the transmission shaft transmission is connected, the transmission shaft is connected in driving motor's output, the conveyer belt cover is located the transmission shaft with on the driven shaft, the conveyer belt can the transmission shaft with the drive of driven shaft is rotated down.
The invention has the beneficial effects that:
the invention provides a hot-pressing process, which is used for hot-pressing a winding core of a battery so as to enable the thickness of the winding core to be flat and a pole piece to be tightly attached to a diaphragm, and comprises the following steps: winding the positive plate, the negative plate and the diaphragm to form a winding core; placing the winding core on a logistics line, and conveying the winding core to a hot pressing station by using the logistics line; heating the winding core on the material flow line for a preset time at a preset temperature; and carrying out hot pressing treatment on the heated winding core. This hot pressing technology has heated the book core before carrying out hot pressing to rolling up the core, has improved the inside temperature of rolling up the core, not only can shorten follow-up hot pressing time to rolling up the core, has still promoted the evenly distributed of the internal stress of roll core, has improved the inside fold of roll core.
The invention also provides a hot-pressing device, wherein the hot-pressing device is provided with the heating furnace on the material flow line, so that the material flow line passes through the heating furnace to heat the coiled core on the material flow line, and the phenomenon that the coiled core conveying is greatly influenced is avoided. This hot press unit still includes grabbing device, and grabbing device can utilize the material loading clamping jaw to press from both sides the core clamp and place on the logistics line, and grabbing device can utilize the unloading clamping jaw to press from both sides the core after heating from the logistics line and get off, has improved the speed of core material loading and unloading.
Drawings
FIG. 1 is a flow diagram of a hot pressing process provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hot press apparatus according to an embodiment of the present invention.
In the figure:
1. a logistics line; 11. a frame; 12. a drive shaft; 13. a driven shaft; 2. heating furnace; 21. a heat-preserving cylinder; 31. a feeding clamping jaw; 32. and (5) blanking clamping jaws.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment provides a hot pressing process, and this hot pressing process is used for carrying out the hot pressing to the book core of battery to the thickness that makes roll core levels, and the pole piece is inseparable with the laminating of diaphragm, guarantees the performance of battery. As shown in fig. 1, the hot pressing process includes the following steps:
s1, winding the positive plate, the negative plate and the diaphragm to form a winding core.
That is, the separator is interposed between the adjacent positive electrode sheet and negative electrode sheet, and the positive electrode sheet, negative electrode sheet, and separator are wound to form a winding core. In this embodiment, the thickness range of the winding core formed by winding is set to 10mm-30mm, and preferably, the thickness of the winding core is set to 20mm, so that the internal temperature of the winding core can be rapidly increased when the winding core is subsequently heated.
S2, placing the winding core on the logistics line 1, and conveying the winding core to a hot pressing station by using the logistics line 1.
That is, the core is placed on the logistics line 1, and the logistics line 1 can convey the core to the direction of the hot pressing station. Preferably, a plurality of book cores are placed at the parallel interval on logistics line 1, are favorable to guaranteeing that a plurality of book cores on logistics line 1 can be heated evenly in subsequent heating process. It will be understood that the number of side-by-side winding cores on the distribution line 1 can be set by a person skilled in the art according to the capacity of the winding cores, without limiting the number of side-by-side winding cores.
And S3, heating the roll cores on the logistics line 1 for preset time at preset temperature.
That is, the winding core conveyed downstream on the material flow line 1 is heated at a preset temperature for a preset time. In this embodiment, the preset temperature range for heating the winding core is set to 100-110 ℃, preferably, the preset temperature is set to 105 ℃, and the preset temperature can not only achieve a good heating effect on the winding core, but also avoid damage to the winding core caused by overhigh temperature.
Preferably, the preset time range for heating the winding core is set to be 15min-30min, and more preferably, the preset time range for heating the winding core is set to be 17.5min, so that the internal temperature of the winding core can be raised to a proper temperature. In this embodiment, the inside temperature range of the core that rolls up after the heating can reach 60 ℃ -80 ℃, preferably, the inside temperature of the core that rolls up after the heating reaches 80 ℃, when the inside temperature of the core that rolls up is this temperature, can promote to roll up the inside mechanical properties of core and keep unanimous for inside stress distribution is even when the core that rolls up receives the hot pressing, can alleviate the emergence of the inside fold of core.
And S4, carrying out hot pressing treatment on the heated roll core.
Namely, the hot pressing plate on the hot press is used for carrying out hot pressing on the winding core on the hot pressing station. In this embodiment, the time span of carrying out the hot pressing to the book core sets up to 10s-20s, preferably, sets up the time of carrying out the hot pressing to the book core to 15s, because the heating process has been carried out to the book core before the hot pressing, and the temperature of rolling up the core is higher, and 15s hot pressing can make the thickness of rolling up the core level and smooth, and the pole piece closely laminates with the diaphragm.
This embodiment still provides a hot press unit, it is used for carrying out the preamble hot pressing technology, as shown in fig. 2, this hot press unit is including setting up in the hot press (not shown in the figure) of hot pressing station department, logistics line 1, heating furnace 2 and grabbing device, logistics line 1 is used for carrying the core, heating furnace 2 sets up on logistics line 1, logistics line 1 wears to establish the inner chamber through heating furnace 2, heating furnace 2 is used for heating the core of book on logistics line 1, grabbing device can press from both sides the core clamp of coiling and place on logistics line 1, and press from both sides the core clamp that will heat and take off from logistics line 1.
In this embodiment, logistics line 1 includes frame 11, transmission shaft 12, driven shaft 13 and conveyer belt (not shown in the figure), and transmission shaft 12 and driven shaft 13 all rotate to be connected on frame 11, and transmission shaft 12 and driven shaft 13 transmission are connected, and on transmission shaft 12 and driven shaft 13 were located to the conveyer belt cover, the conveyer belt can rotate under the drive of transmission shaft 12 and driven shaft 13, will arrange the core of rolling up on the conveyer belt and carry downstream. Preferably, the transmission shaft 12 is connected to an output end of the driving motor such that the transmission shaft 12 is rotated by the driving motor. In this embodiment, the driven shafts 13 are provided in plurality, and the plurality of driven shafts 13 are arranged in parallel at intervals, so that the driven shafts 13 can have a good supporting effect on the conveyor belt.
Preferably, the heating furnace 2 comprises a heat preservation cylinder 21, and the material flow line 1 is arranged through the heat preservation cylinder 21 in a penetrating way, namely, the material flow line 1 extends into one opening end of the heat preservation cylinder 21 and extends out from the other opening end. In this embodiment, the heat-insulating cylinder 21 is formed by sequentially splicing a plurality of heat-insulating plates, so that the heating furnace 2 has good heat-insulating capability. Preferably, heating furnace 2 still includes the hot plate (not shown in the figure), and the hot plate sets up in the inner chamber of heat preservation section of thick bamboo 21, can heat the core of rolling up on the logistics line 1 under the power supply of external power source to promote the temperature of core of rolling up.
In this embodiment, the gripping device includes a feeding gripper 31 and a discharging gripper 32, the feeding gripper 31 is disposed upstream of the heating furnace 2 along the core conveying direction, and the discharging gripper 32 is disposed downstream of the heating furnace 2 along the core conveying direction. The feeding clamping jaw 31 is used for clamping a coiled core which is coiled on a conveying belt, and the discharging clamping jaw 32 is used for clamping the heated coiled core from the conveying belt and taking the coiled core down, so that the feeding speed and the discharging speed of the coiled core are improved, and the production efficiency of the coiled core is improved.
In this embodiment, the hot press apparatus further includes a control module, which may be a centralized or distributed control module, for example, the control module may be an individual single chip microcomputer or may be composed of a plurality of distributed single chip microcomputers, and a control program may be run in the single chip microcomputer to control the driving motor, the heating plate, the feeding clamping jaw 31 and the discharging clamping jaw 32 to implement their functions.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A hot pressing process is characterized by comprising the following steps:
winding the positive plate, the negative plate and the diaphragm to form a winding core;
placing the winding core on an logistics line (1), and conveying the winding core to a hot pressing station by using the logistics line (1);
heating the core on the logistics line (1) for a preset time at a preset temperature;
and carrying out hot pressing treatment on the heated roll core.
2. A hot-pressing process according to claim 1, characterized in that the preset temperature range for heating the reeling core is set to 100-110 ℃.
3. A hot-pressing process according to claim 1, characterized in that the preset time range for heating the reeling core is set to 15-30 min.
4. A hot pressing process according to claim 1, characterized in that the internal temperature of the winding core after heating is in the range 60-80 ℃.
5. A hot-pressing process according to claim 1, characterized in that the time for hot-pressing the reeling core is set to 10-20 s.
6. A hot-pressing process according to claim 1, characterized in that the number of side by side placed cores on the logistics line (1) is set according to the capacity of the cores and the cores are placed in parallel spaced apart on the logistics line (1).
7. A hot pressing apparatus for use in the hot pressing process according to any one of claims 1 to 6, comprising:
a logistics line (1), the logistics line (1) is used for conveying a winding core;
the logistics line (1) penetrates through an inner cavity of the heating furnace (2);
grabbing device, grabbing device includes material loading clamping jaw (31) and unloading clamping jaw (32), material loading clamping jaw (31) are followed core direction of delivery set up in the upper reaches of heating furnace (2), unloading clamping jaw (32) are followed core direction of delivery set up in the low reaches of heating furnace (2).
8. A hot-pressing device according to claim 7, characterized in that said furnace (2) comprises a heat-insulating cylinder (21), said logistic line (1) being threaded through said heat-insulating cylinder (21).
9. A hot-pressing apparatus according to claim 8, characterized in that the heating furnace (2) further comprises a heating plate disposed in the inner cavity of the heat-insulating cylinder (21).
10. The hot-pressing device according to claim 7, characterized in that the logistics line (1) comprises a frame (11), a transmission shaft (12), a driven shaft (13) and a conveying belt, wherein the transmission shaft (12) and the driven shaft (13) are rotatably connected to the frame (11), the driven shaft (13) is in transmission connection with the transmission shaft (12), the transmission shaft (12) is connected to an output end of a driving motor, the conveying belt is sleeved on the transmission shaft (12) and the driven shaft (13), and the conveying belt can be driven by the transmission shaft (12) and the driven shaft (13) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802814.2A CN111769335A (en) | 2020-08-11 | 2020-08-11 | Hot pressing process and hot pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802814.2A CN111769335A (en) | 2020-08-11 | 2020-08-11 | Hot pressing process and hot pressing device |
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| CN111769335A true CN111769335A (en) | 2020-10-13 |
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| CN202010802814.2A Pending CN111769335A (en) | 2020-08-11 | 2020-08-11 | Hot pressing process and hot pressing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045399A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Manufacturing device for electrode assembly |
| US12027673B2 (en) | 2021-09-23 | 2024-07-02 | Contemporary Amperex Technology Co., Limited | Electrode assembly manufacturing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003115288A (en) * | 2001-10-02 | 2003-04-18 | Mitsubishi Cable Ind Ltd | Method of manufacturing sheet battery |
| WO2015046893A1 (en) * | 2013-09-25 | 2015-04-02 | 주식회사 엘지화학 | Method for manufacturing electrode assembly |
| CN206301895U (en) * | 2016-11-14 | 2017-07-04 | 宁德时代新能源科技股份有限公司 | Heater and hot-press equipment |
| CN108615950A (en) * | 2018-07-06 | 2018-10-02 | 江苏卓高新材料科技有限公司 | A kind of takeup type battery core method for shaping and shaping equipment |
| CN110190322A (en) * | 2019-06-26 | 2019-08-30 | 东莞市佳的自动化设备科技有限公司 | Lithium battery compounding machine, hot pressing composite system and heating device |
| CN111293347A (en) * | 2020-04-08 | 2020-06-16 | 湖北亿纬动力有限公司 | Battery production process |
| CN211045636U (en) * | 2019-09-26 | 2020-07-17 | 广州汽车集团股份有限公司 | Lithium cell electricity core lamination machine |
| CN111477971A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Battery cell shaping method |
-
2020
- 2020-08-11 CN CN202010802814.2A patent/CN111769335A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003115288A (en) * | 2001-10-02 | 2003-04-18 | Mitsubishi Cable Ind Ltd | Method of manufacturing sheet battery |
| WO2015046893A1 (en) * | 2013-09-25 | 2015-04-02 | 주식회사 엘지화학 | Method for manufacturing electrode assembly |
| CN206301895U (en) * | 2016-11-14 | 2017-07-04 | 宁德时代新能源科技股份有限公司 | Heater and hot-press equipment |
| CN108615950A (en) * | 2018-07-06 | 2018-10-02 | 江苏卓高新材料科技有限公司 | A kind of takeup type battery core method for shaping and shaping equipment |
| CN110190322A (en) * | 2019-06-26 | 2019-08-30 | 东莞市佳的自动化设备科技有限公司 | Lithium battery compounding machine, hot pressing composite system and heating device |
| CN211045636U (en) * | 2019-09-26 | 2020-07-17 | 广州汽车集团股份有限公司 | Lithium cell electricity core lamination machine |
| CN111293347A (en) * | 2020-04-08 | 2020-06-16 | 湖北亿纬动力有限公司 | Battery production process |
| CN111477971A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Battery cell shaping method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045399A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Manufacturing device for electrode assembly |
| US12027673B2 (en) | 2021-09-23 | 2024-07-02 | Contemporary Amperex Technology Co., Limited | Electrode assembly manufacturing device |
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