CN109103512A - A kind of novel cutting folding integrated machine and cell manufacturing method - Google Patents
A kind of novel cutting folding integrated machine and cell manufacturing method Download PDFInfo
- Publication number
- CN109103512A CN109103512A CN201810764957.1A CN201810764957A CN109103512A CN 109103512 A CN109103512 A CN 109103512A CN 201810764957 A CN201810764957 A CN 201810764957A CN 109103512 A CN109103512 A CN 109103512A
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- Prior art keywords
- pole piece
- positive
- hot pressing
- drive roller
- lamination
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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
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of novel cutting folding integrated machines and cell manufacturing method applied to soft package power lithium ion battery, are related to power lithium-ion battery manufacturing technology field.The present invention includes that coiled feed mechanism, laser cut pole piece mechanism, Z-shaped stacking mechanism and hot pressing mechanism.Compared with prior art, the present invention is for the first time in such a way that laser cuts pole piece, and laser directly cuts foil, it can be to avoid direct blank, not only the excessive problem of pole piece cut edge burr can have effectively been controlled, but also can reduce and drop off problem as caused by direct blank, has substantially improved dust harzard, it is greatly improved the finished product battery core performance of subsequent assembling, greatly improves battery core safety.
Description
Technical field
The invention discloses a kind of applied to the novel cutting folding integrated machine of soft package power lithium ion battery and battery manufacture side
Method is related to power lithium-ion battery manufacturing technology field.
Background technique
In power lithium-ion battery lamination field, the cutting pole piece mode mostly used greatly is cross cutting, i.e., direct using cutter
Severing is carried out to pole piece dressing area, on the one hand will lead to that pole piece burrs on edges is excessive in this way, increases the risk of battery core short circuit；It is another
The direct blank of aspect will lead to that dust is excessive, and pole piece drops off seriously, and the dust that blank generates may fall into pole piece or membrane surface,
Short circuit ratio is substantially increased, battery core safety is seriously affected.
In consideration of it, overcoming defect present in the prior art is the art urgent problem to be solved.
Summary of the invention
It is an object of the invention to: for the deficiency of current lamination techniques, provide a kind of using laser cutting pole piece
Novel cutting folding integrated machine, specific adaptation is in method for soft package lithium ion power.The present invention can further increase and to improve battery core short
Road rate improves consistency, safety and the service life of performance of lithium ion battery.
In order to reach above-mentioned technical purpose, the present invention adopts the following technical scheme:
The present invention is a kind of novel cutting folding integrated machine applied to soft package power lithium ion battery, including it is sequentially connected it is coiled on
Expect mechanism, laser cuts pole piece mechanism, Z-shaped stacking mechanism and hot pressing mechanism.
Preferably, the coiled feed mechanism includes positive drive roller system and cathode drive roller system, the biography
Dynamic roll system includes flatulence shaft device, drive roller, belt pressing device and the deviation correcting device successively arranged, positive and negative anodes material volume cylinder
It covers on flatulence shaft device, drive roller is set on pole piece band, and the pressure zone for temporarily fixing pole piece band is equipped with after drive roller and is filled
It sets；Deviation correcting device is used to be modified pole piece band position, and the timely correction stroke in pole piece transmission process guarantees positive and negative anodes band
Stabilization in transmit process is smooth, including position sensor and removable drive roller.
Preferably, it includes laser emitter and sensor that the laser, which cuts pole piece mechanism, and laser emitter is located at wait be die cut
Position, sensor are located at pole piece band two sides up and down.In pole piece tape transfer procedure, sensor detects pole piece position, when pole piece foil
When material area reaches laser emitter position, transmitting laser carries out cross cutting pole piece.
Preferably, the Z-shaped stacking mechanism includes lamination stacking table, positive manipulator, cathode manipulator, membrane unwinding machine
Structure, membrane unwinding mechanism include place diaphragm reel flatulence axis, play traction and buffer function drive roller and control every
The correction roller of film stroke；Positive manipulator and cathode manipulator for grabbing positive/negative plate are located at the two of lamination stacking table
The transfer positioning of positive/negative plate is realized in side.
Preferably, also containing solid for realizing being compressed during lamination to pole piece and diaphragm in the Z-shaped stacking mechanism
Fixed push type broach, push type broach are located on lamination stacking table and are distributed in lamination stacking table two sides.
Preferably, also containing the tape sticking device for realizing automatic adhesive-tape application after lamination in the Z-shaped stacking mechanism.
Preferably, the hot pressing mechanism includes pressurized cylinder, hot pressing upper mold and hot pressing lower die, is additionally provided with for realizing folding
The transfer robot arm that process material shifts under battery core.
Utilize the cell manufacturing method of above-mentioned novel cutting folding integrated machine, comprising the following steps:
(1) positive and negative anodes material drum sheath passes through gas on the flatulence shaft device of the positive and negative anodes drive roller system of coiled feed mechanism
Cylinder control flatulence axis steps up and unclamps；Pole piece band is drawn and is buffered tension, drive roller by several drive rollers
The belt pressing device being arranged afterwards temporarily fixes pole piece band, in pole piece tape transfer procedure by deviation correcting device to the position of pole piece band into
Row amendment；
(2) in pole piece tape transfer procedure, sensor detects pole piece position, cuts pole piece mechanism when pole piece foil area reaches laser
When laser emitter position, transmitting laser carries out cross cutting pole piece；
(3) manipulator that the positive and negative plate by laser cutting passes through Z-shaped stacking mechanism crawl positive/negative plate respectively is placed
Onto fixed device lamination stacking table, diaphragm is also transmitted on lamination stacking table through unreeling structure, by way of zigzag, according to one layer
The positive cladding sequence of one layer of diaphragm, one layer of diaphragm of one layer of cathode builds up the full stack core for fixing the positive and negative anodes number of plies one by one；Lamination
The pole piece and diaphragm folded in the process by push type broach to heap are fixed；Full stack core passes through tape sticking device, after realizing lamination
Automatic adhesive-tape application；
(4) battery core folded being sent to hot pressing mechanism by midway transfer robot arm, folded core is sent to the fixed position of hot pressing lower die,
By driving hot pressing cylinder, moves down hot pressing upper mold and hot pressing is carried out to folded core, complete the fixation shaping of folded core.
The beneficial effects of the present invention are:
Positive and negative anodes are coated in such a way that interval is coated with, laser directly cuts the foil area of uncoated area,
Since laser directly cuts foil, avoids directly cutting material area, both can effectively control that pole piece cut edge burr is excessive to ask
Topic, and can reduce and drop off problem as caused by direct blank, dust harzard is substantially improved, the finished product electricity of subsequent assembling is made
Core performance is greatly improved, and greatly improves battery core safety；Secondly, the present invention is using zigzag stacking mechanism, it can
Lamination is counted automatically with the molding positive/negative plate for cutting laser, and positive/negative plate is separated by progress by the upper lower diaphragm plate of not severing
Zigzag winding, equipment lamination carry out automatic adhesive-tape application process after the completion and pass through lamination process relative to traditional winding-structure
The battery core of processing have smaller internal resistance and high-rate discharge ability, the laminated batteries of finished product also have better cycle characteristics,
The good characteristics such as security feature and energy density；Finally, present invention employs hot pressing mechanism, by the battery core folded carry out shaping,
It is fixed, finished product battery core can be made more smooth, preferably improve the coherent condition and interfacial characteristics of pole piece, and then improve battery core
Energy.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: the coiled feed mechanism of 1-, 2- laser cut pole piece mechanism, 3-Z font stacking mechanism, 4- hot pressing mechanism.
Fig. 2 is the structural schematic diagram of coiled feed mechanism.
In figure: 10- flatulence shaft device, 11- drive roller, 12- belt pressing device, 13- position sensor, 14- are removable to be passed
Dynamic roller.
Fig. 3 is the structural schematic diagram that laser cuts pole piece mechanism.
In figure: 20- laser emitter, 21- pole piece band.
Fig. 4 is Z-shaped stacking mechanism schematic diagram.
In figure: 30- lamination stacking table, 31- anode manipulator, 32- cathode manipulator, 33- push type broach, 34- negative electrode tab, 35- anode
Piece, 36- diaphragm.
Fig. 5 is hot pressing mechanism structural schematic diagram.
In figure: 40- manipulator, 41- hot pressing upper mold, 42- hot pressing lower die.
Specific embodiment
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described, is shown
So, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Apparatus structure:
Refering to attached drawing 1, the present invention is a kind of novel cutting folding integrated machine applied to soft package power lithium ion battery, including it is coiled on
Expect mechanism 1, laser cuts pole piece mechanism 2, Z-shaped stacking mechanism 3 and hot pressing mechanism 4.
Coiled feed mechanism 1 includes positive drive roller system and cathode drive roller system, the drive roller system
It include flatulence shaft device 10, it can be with fixed pole piece material volume；Drive roller 11, plays traction in pole piece transmission process and buffering is made
With；Belt pressing device 12, can when pole piece threading starts from fixed function；It is driven deviation correcting device, including 13 He of position sensor
Removable drive roller 14 timely correction stroke, guarantee positive and negative anodes can be rolled up in transmit process in pole piece transmission process
Stablize smooth.
It includes laser emitter 20 and sensor that laser, which cuts pole piece mechanism 2, and laser emitter 20 is located to die station, passes
Sensor is located at pole piece band two sides up and down.In pole piece tape transfer procedure, sensor detects pole piece position, when pole piece foil area reaches
When laser cuts 20 position of laser emitter of pole piece mechanism, transmitting laser carries out cross cutting pole piece.
Z-shaped stacking mechanism includes lamination stacking table 30, positive manipulator 31, cathode manipulator 32, membrane unwinding mechanism, diaphragm
Unreeling structure includes the flatulence axis for placing diaphragm reel, the drive roller for playing traction and buffer function and control diaphragm stroke
Correction roller.Positive manipulator 31 and cathode manipulator 32 for grabbing positive/negative plate are located at the two sides of lamination stacking table 30,
Realize the transfer positioning of positive plate 35, negative electrode tab 34.In Z-shaped stacking mechanism also contain push type broach 33, realize lamination during it is right
What pole piece and diaphragm were fixed；Tape sticking device realizes automatic adhesive-tape application after lamination.
Hot pressing mechanism 4 includes film 41 and hot pressing lower film 42 in pressurized cylinder, hot pressing, is additionally provided with for realizing folding under battery core
The transfer robot arm 40 of process material transfer.Folded core after rubberizing is transported to hot pressing process, pressurized cylinder by transfer robot arm 40
Driving hot pressing upper and lower mould carries out pressurization shaping to folded core.
Cell manufacturing method:
Coiled positive and negative anodes are wrapped on the flatulence shaft device of coiled feed mechanism 1, are carried out on a series of drive rollers 11
Manual lacing film is fixed by belt pressing device 12, and pole piece band carries out stroke control by deviation correcting device in transmit process, protects
It is smooth to demonstrate,prove stabilization of the positive and negative anodes volume in transmit process.When pole piece band reaches laser cutting mechanism 2, pole piece is perceived by sensor
Pole piece band 21 is cut by laser emitter 20 in position.It is then passed through Z-shaped stacking mechanism 3, altogether includes 4 stations
Lamination device, the manipulator 31,32 that the positive and negative plate by laser cutting passes through crawl positive/negative plate respectively is placed to solid
Determine on device lamination stacking table 30, diaphragm 36 is also transmitted on lamination stacking table through unreeling structure, by way of zigzag, according to one layer
The positive cladding sequence of one layer of diaphragm, one layer of diaphragm of one layer of cathode builds up the full stack core for fixing the positive and negative anodes number of plies one by one；Lamination
The pole piece and diaphragm folded in the process by push type broach 33 to heap are fixed；Full stack core passes through tape sticking device, realizes lamination
Automatic adhesive-tape application afterwards guarantees that folded core will not be loose.Then the battery core folded is sent to last by midway transfer robot arm 40
Hot pressing process.Folded core, which is sent to the fixed position of hot pressing lower die 41, moves down hot pressing upper mold 41 to folded by driving hot pressing cylinder
Core carries out hot pressing, completes the fixation shaping of folded core.
The present invention be it is a kind of it is novel cut folding integrated machine, can efficiently quickly finish pole piece cutting and lamination process, and lead to
Crossing hot pressing makes the finished product processed fold core attractive appearance, and perfect performance preferably improves the various drawbacks and electricity in die cutting process
Core risk guarantees that soft bag lithium ionic cell has better performance consistency, safety and service life.
The explanation of book according to the above description, it is appropriate that those skilled in the art can also carry out above embodiment
Change and modification.Therefore, the invention is not limited to embodiments described above, to some changes of the invention and
Modification should also be as belonging to scope of protection of the claims of the invention, meanwhile, it is also belonged to by the soft pack cell that the present invention manufactures experimently out
Claims of the invention.In addition, some specific terms used in this specification are merely for convenience of description, and
It does not form any restrictions to the present invention.
Claims (8)
1. a kind of novel cutting folding integrated machine, it is characterised in that: cut pole piece including sequentially connected coiled feed mechanism (1), laser
Mechanism (2), Z-shaped stacking mechanism (3) and hot pressing mechanism (4).
2. a kind of novel cutting folding integrated machine according to claim 1, it is characterised in that: coiled feed mechanism (1) packet
Positive drive roller system and cathode drive roller system are included, the drive roller system includes the flatulence axis dress successively arranged
Set (10), drive roller (11), belt pressing device (12) and deviation correcting device, positive and negative anodes material drum sheath on flatulence shaft device (10),
Drive roller (11) is set on pole piece band, and drive roller (11) is equipped with the belt pressing device (12) for temporarily fixing pole piece band afterwards；It entangles
Deflection device is used to be modified pole piece band position, including position sensor (13) and removable drive roller (14).
3. a kind of novel cutting folding integrated machine according to claim 1, it is characterised in that: the laser cuts pole piece mechanism (2)
Including laser emitter (20) and sensor, laser emitter (20) is located to die station, and sensor is located at pole piece band or more
Two sides.
4. a kind of novel cutting folding integrated machine according to claim 1, it is characterised in that: Z-shaped stacking mechanism (3) packet
Lamination stacking table (30), positive manipulator (31), cathode manipulator (32), membrane unwinding mechanism are included, membrane unwinding mechanism includes placing
The flatulence axis of diaphragm reel, the drive roller for playing traction and buffer function and the correction roller for controlling diaphragm stroke；For grabbing
The positive manipulator (31) of positive/negative plate and cathode manipulator (32) is taken to be located at the two sides of lamination stacking table.
5. a kind of novel cutting folding integrated machine according to claim 4, it is characterised in that: in the Z-shaped stacking mechanism (3)
Also containing for realizing the push type broach (33) being fixed during lamination to pole piece and diaphragm, push type broach is located on lamination stacking table and is distributed
In lamination stacking table two sides.
6. a kind of novel cutting folding integrated machine according to claim 4 or 5, it is characterised in that: the Z-shaped stacking mechanism
(3) also containing the tape sticking device for realizing automatic adhesive-tape application after lamination in.
7. a kind of novel cutting folding integrated machine according to claim 1, it is characterised in that: the hot pressing mechanism (4) includes adding
Air cylinder, hot pressing upper mold (41) and hot pressing lower die (42) are additionally provided with for realizing the transfer that process material shifts under battery core is folded
Manipulator (40).
8. utilizing the cell manufacturing method of the described in any item novel cutting folding integrated machines of claim 1 ~ 7, which is characterized in that including
Following steps:
(1) positive and negative anodes material drum sheath passes through gas on the flatulence shaft device of the positive and negative anodes drive roller system of coiled feed mechanism
Cylinder control flatulence axis steps up and unclamps；Pole piece band is drawn and is buffered tension, drive roller by several drive rollers
The belt pressing device being arranged afterwards temporarily fixes pole piece band, in pole piece tape transfer procedure by deviation correcting device to the position of pole piece band into
Row amendment；
(2) in pole piece tape transfer procedure, sensor detects pole piece position, cuts pole piece mechanism when pole piece foil area reaches laser
When laser emitter position, transmitting laser carries out cross cutting pole piece；
(3) manipulator that the positive and negative plate by laser cutting passes through Z-shaped stacking mechanism crawl positive/negative plate respectively is placed
Onto fixed device lamination stacking table, diaphragm is also transmitted on lamination stacking table through unreeling structure, by way of zigzag, according to one layer
The positive cladding sequence of one layer of diaphragm, one layer of diaphragm of one layer of cathode builds up the full stack core for fixing the positive and negative anodes number of plies one by one；Lamination
The pole piece and diaphragm folded in the process by push type broach to heap are fixed；Full stack core passes through tape sticking device, after realizing lamination
Automatic adhesive-tape application；
(4) battery core folded being sent to hot pressing mechanism by midway transfer robot arm, folded core is sent to the fixed position of hot pressing lower die,
By driving hot pressing cylinder, moves down hot pressing upper mold and hot pressing is carried out to folded core, complete the fixation shaping of folded core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764957.1A CN109103512A (en) | 2018-07-12 | 2018-07-12 | A kind of novel cutting folding integrated machine and cell manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764957.1A CN109103512A (en) | 2018-07-12 | 2018-07-12 | A kind of novel cutting folding integrated machine and cell manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109103512A true CN109103512A (en) | 2018-12-28 |
Family
ID=64846254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764957.1A Pending CN109103512A (en) | 2018-07-12 | 2018-07-12 | A kind of novel cutting folding integrated machine and cell manufacturing method |
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| Country | Link |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524722A (en) * | 2019-01-03 | 2019-03-26 | 广东亿鑫丰智能装备股份有限公司 | A kind of improved high-efficiency rate mould folding integrated machine |
| CN110247124A (en) * | 2019-06-24 | 2019-09-17 | 惠州亿纬锂能股份有限公司 | A kind of lithium ion battery high speed laminating method, lamination device and lithium ion battery |
| CN110492181A (en) * | 2019-07-05 | 2019-11-22 | 哈工大机器人(中山)无人装备与人工智能研究院 | A kind of lamination device and integral type mould stacking device |
| 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 |
| CN112259802A (en) * | 2020-03-31 | 2021-01-22 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
| CN112635846A (en) * | 2020-12-31 | 2021-04-09 | 深圳市诚捷智能装备股份有限公司 | Cross cutting lamination all-in-one |
| CN117790876A (en) * | 2024-02-26 | 2024-03-29 | 宁德时代新能源科技股份有限公司 | Battery cell winding equipment and method |
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| JP2013222517A (en) * | 2012-04-13 | 2013-10-28 | Hitachi Vehicle Energy Ltd | Square secondary battery |
| CN104241700A (en) * | 2014-09-23 | 2014-12-24 | 东莞新能源科技有限公司 | Laminated battery cell preparation device |
| CN106025376A (en) * | 2016-06-13 | 2016-10-12 | 合肥国轩高科动力能源有限公司 | Method for continuously manufacturing winding type laminated battery structure |
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- 2018-07-12 CN CN201810764957.1A patent/CN109103512A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013222517A (en) * | 2012-04-13 | 2013-10-28 | Hitachi Vehicle Energy Ltd | Square secondary battery |
| CN104241700A (en) * | 2014-09-23 | 2014-12-24 | 东莞新能源科技有限公司 | Laminated battery cell preparation device |
| CN106025376A (en) * | 2016-06-13 | 2016-10-12 | 合肥国轩高科动力能源有限公司 | Method for continuously manufacturing winding type laminated battery structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524722A (en) * | 2019-01-03 | 2019-03-26 | 广东亿鑫丰智能装备股份有限公司 | A kind of improved high-efficiency rate mould folding integrated machine |
| CN110247124A (en) * | 2019-06-24 | 2019-09-17 | 惠州亿纬锂能股份有限公司 | A kind of lithium ion battery high speed laminating method, lamination device and lithium ion battery |
| CN110492181A (en) * | 2019-07-05 | 2019-11-22 | 哈工大机器人(中山)无人装备与人工智能研究院 | A kind of lamination device and integral type mould stacking device |
| CN112259802A (en) * | 2020-03-31 | 2021-01-22 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
| CN112259802B (en) * | 2020-03-31 | 2022-02-01 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
| 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 |
| CN112635846A (en) * | 2020-12-31 | 2021-04-09 | 深圳市诚捷智能装备股份有限公司 | Cross cutting lamination all-in-one |
| CN117790876A (en) * | 2024-02-26 | 2024-03-29 | 宁德时代新能源科技股份有限公司 | Battery cell winding equipment and method |
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Application publication date: 20181228 |