CN201975467U - Cell winding device - Google Patents

Cell winding device Download PDF

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Publication number
CN201975467U
CN201975467U CN2011200189922U CN201120018992U CN201975467U CN 201975467 U CN201975467 U CN 201975467U CN 2011200189922 U CN2011200189922 U CN 2011200189922U CN 201120018992 U CN201120018992 U CN 201120018992U CN 201975467 U CN201975467 U CN 201975467U
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China
Prior art keywords
volume pin
winding
barrier film
electric core
barrier films
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Expired - Lifetime
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CN2011200189922U
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Chinese (zh)
Inventor
张海波
龙培英
韩淑英
刘亮亮
祝媛
袁中直
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Eve Energy Co Ltd
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Eve Energy Co Ltd
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Priority to CN2011200189922U priority Critical patent/CN201975467U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

The utility model relates to a cell winding device. A winding mechanism of the cell winding device comprises a winding pin, a compression roller and a diaphragm separating mechanism matching with the winding pin so as to complete winding work. The diaphragm separating mechanism is used for separating a part where two diaphragms pass through the winding pin after two diaphragms pass through the winding pin partially. Two layers of diaphragms can be distributed between end parts of an anode sheet and a cathode sheet in the middle of the cell and adjacent electrodes while winding the cell by using the cell winding method of the utility model; the utility model is good in insulativity between electrodes, does not produce short circuit easily, and implements automation easily, so the utility model is suitable for all kinds of winding-type batteries.

Description

A kind of electric core winding equipment
Technical field
The utility model relates to the winding apparatus of battery battery core.
Background technology
In the manufacturing process of coiled battery, two barrier films that need will be superimposed with up-coiler, and the positive plate and the negative plate of being isolated by these two barrier films are wound into cylindrical or oval.Existing general way is that an end of two barrier films is enclosed within on the volume pin after fixedly connected, then positive plate is placed on a slice barrier film, and negative plate is placed on another sheet barrier film, reels at last.The positive pole of the electric core that adopts this method to reel to form and negative pole only are distributed with one deck barrier film between the end of electric core center and adjacent electrode.Positive pole/the negative pole of general battery has wire netting or metal forming as collector, and in the process of pole piece trimming, the end of this metal currect collecting net is prone to burr.Therefore, the centre insulation effect of the electric core that above-mentioned method for winding winds is poor, is prone to short circuit phenomenon.
Summary of the invention
The purpose of this utility model provides a kind of electric core winding equipment that two-layer barrier film isolation is arranged that makes between the end of the negative or positive electrode at electric core center and adjacent electrode when reeling electric core.
The technical solution of the utility model is: a kind of electric core winding equipment, comprise winding mechanism, and described winding mechanism comprises the volume pin, is used for cooperating with described volume pin pressure roller and membrane separation mechanism to finish coiling work.The part that described membrane separation mechanism is used for after two membrane portions are passed described volume pin two barrier films being passed described volume pin separately.
Described electric core winding equipment also comprises the barrier film feed mechanism, anodal feed mechanism and negative pole feed mechanism.The barrier film feed mechanism is used for two barrier films are sent to volume pin place, and part is passed described volume pin.Anodal feed mechanism is used for providing positive plate to described winding mechanism.The negative pole feed mechanism is used for providing negative plate to described winding mechanism.Wherein, a slice in positive plate and the negative plate is sent between two barrier films that pass described volume pin, and another sheet in positive plate and the negative plate is sent between two barrier films that do not pass described volume pin.As a kind of embodiment, described membrane separation mechanism comprises wind pushing mechanism, and described wind pushing mechanism is spent when 135 spend to the barrier film end air-supply of passing described volume pin, the membrane portions of passing described volume pin with separation in described volume pin rotation 45.Described running roller is being resisted against after the described membrane separation on the described volume pin, and a slice in two barrier films that blown open is crushed between described running roller and the volume pin.As another kind of embodiment, described membrane separation mechanism comprises the backstop roller, described two barrier films pass the length difference of the part of described volume pin, described stop roller is used for the long barrier film of length that when described volume pin rotates to predetermined angle two barrier films of backstop pass the part of volume pin, passes two barrier films of described volume pin with separation.As another kind of embodiment, described membrane separation mechanism comprises the vacuum generator that a slice of being used for passing the barrier film of described volume pin holds.As another kind of embodiment, described membrane separation mechanism comprises the electrostatic generator that a slice of being used for passing the barrier film of described volume pin holds.
Can make the two-layer barrier film that between the end of the positive plate at electric core center or negative plate and adjacent electrode, distributes when adopting electric core winding equipment of the present utility model to reel electric core, good insulating between the electrode, be not prone to short circuit phenomenon, and the plant machinery action is simple, stability and reliability height, be applicable to and make various types of coiled batteries, be specially adapted to dispose the coiled battery of metal currect collecting net.
Description of drawings
Fig. 1 is the framework schematic diagram of the utility model electric core winding equipment.
Fig. 2 (a) is the method for winding schematic diagram of the electric core winding equipment of an embodiment to Fig. 2 (d).
Fig. 3 (a) is the method for winding schematic diagram of the electric core winding equipment of another embodiment to Fig. 3 (d).
Embodiment
Below in conjunction with specific embodiment and accompanying drawing structural principle of the present utility model is described in further detail.
As shown in Figure 1, electric core winding equipment of the present utility model can automatically be finished the coiling work of electric core positive and negative electrode and barrier film, and it is simple to have a mechanical action, stability and high reliability features.The two-layer barrier film that between the end of the positive plate of center and negative plate and adjacent electrode, distributes of the electric core that coiling forms.This electric core winding equipment mainly comprises anodal feed mechanism 110, negative pole feed mechanism 120, barrier film feed mechanism 130 and 140, and winding mechanism 150.Understandable, cell winding device comprises that also necessary control equipment controls its work.
Anodal feed mechanism 110 is used for providing the moulding positive plate to winding mechanism 150.Such as but not limited to, anodal feed mechanism 110 can comprise the charging tray that is rotationally connected with on the support, be used to load the positive pole band that is wound into plate-like, carbon plate for example also can comprise guide roller and is used for clamping and the positive pole band pulled to the pair roller haulage gear etc. of winding mechanism 150.
Negative pole feed mechanism 120 is used for providing the moulding negative plate to winding mechanism 150.Such as but not limited to, negative pole feed mechanism 120 can mainly comprise two charging trays that are rotationally connected with on the support, is respectively applied for to load negative pole (for example lithium band) and the metal currect collecting net that is wound into plate-like.Negative pole feed mechanism 120 also can comprise and be used for obtaining negative pole and currect collecting net from above-mentioned charging tray, negative pole and currect collecting net are closed film, make the roller press briquetting mechanism of the bonding formation composite negative pole of negative pole and currect collecting net sheet, and the clamping and conveying device that is used for this composite negative pole sheet is sent to winding mechanism 150.
Barrier film feed mechanism 130 and 140 is used for providing barrier film to winding mechanism 150.Such as but not limited to, barrier film feed mechanism 130 and 140 can comprise a feed mechanism that is used to load the charging tray of membrane coil and is used for barrier film is pulled to winding mechanism 150 respectively, as manipulator.
Winding mechanism 150 is used for obtaining positive plate, barrier film and negative plate from anodal discharge mechanism 110, barrier film discharge mechanism 130,140 and negative pole shaping mechanism 120 respectively, and described positive plate, barrier film and negative plate are wound into tubular.Winding mechanism 150 mainly comprises volume pin 151, is used for cooperating with described volume pin with the pressure roller 153 of finishing coiling work and membrane separation mechanism 155 that the part that is used for after two membrane portions are passed described volume pin two barrier films being passed described volume pin is separated.In the work, a slice in positive plate and the negative plate is sent between two barrier films that pass volume pin 151, and another sheet in positive plate and the negative plate is sent between two barrier films that do not pass volume pin 151.Wherein, passing the length of the barrier film of rolling up pin and the position of positive and negative plate placement must satisfy after coiling work is finished, isolate by two-layer barrier film between in positive plate and the negative plate one or whole leading section and the adjacent electrode, like this good insulating between the electrode of the electric core that forms of coiling, be not prone to short circuit phenomenon.
Fig. 2 (a) shows the structural representation and the operation principle thereof of the winding mechanism of the utility model one embodiment to Fig. 2 (d).This winding mechanism comprises volume pin 251, pressure roller 253 and as the wind pushing mechanism 255 of membrane separation mechanism.Wind pushing mechanism 255 is used for when volume pin 251 rotates to certain angle to the barrier film end air-supply of passing volume pin 251, the membrane portions of passing volume pin 251 with separation.In the present embodiment, wind pushing mechanism 255 comprises blower fan (not shown) and tracheae 2551.Wind pushing mechanism 255 rotates to 45 at volume pin 251 and spends when 135 spend to the barrier film end air-supply of passing volume pin 251, and this moment, two barrier film ratios were easier to separate.Understandable, among other embodiment, membrane separation mechanism can also be the vacuum generator that barrier film can be held or electrostatic generator etc., with two barrier films separately.
Shown in Fig. 2 (a), two barrier films 231 and 241 parts are passed volume pin 251, and barrier film passes the length of the part of volume pin 251 should be greater than half of volume pin 251 girths.Shown in Fig. 2 (b), the rotation of volume pin 251 rotates to 45 wind pushing mechanism 255 putting in blasts (volume pin 251 continues rotation) when spending at volume pin 251, and the barrier film end of passing the volume pin is blown open.Shown in Fig. 2 (c), the barrier film 231 that passes the volume pin is gone up pressure roller 253 when being blown to volume pin 251 and is pressed down, and is resisted against on the volume pin 251, and barrier film 231 is pressed between pressure roller 253 and the volume pin 251.Afterwards, positive plate 211 is sent to (between the barrier film that passes volume pin 251) on the barrier film 231 that passes the volume pin, and negative plate 221 is sent between the barrier film that does not pass the volume pin.Fig. 2 (d) has shown the reeling condition of electricity core when 251 rotations 540 of volume pin are spent, and as can be seen, two-layer barrier film is distributing between the negative plate of the positive plate 211 at electric core center and the end of negative plate 221 and vicinity and the positive plate.
The structural representation and the operation principle thereof that show the winding mechanism of another embodiment of the utility model as Fig. 3 (a) to Fig. 3 (d).This winding mechanism comprises volume pin 351, pressure roller 353 and as the backstop roller 355 of membrane separation mechanism.Backstop roller 355 is used for the long a slice barrier film of length that when volume pin 351 rotates on a certain angle between 0 to 180 degree backstop is passed the barrier film of volume pin 351, the membrane portions of passing volume pin 351 with separation.In the present embodiment, backstop roller 355 is one can stretch on frame or up and down or the roller of move left and right.
Shown in Fig. 3 (a), two barrier films 331 and 341 parts are passed volume pin 251, and two barrier films pass the length difference of the part of volume pin, and during the rotation of volume pin, the short barrier film of length that passes the part of volume pin should be positioned at inner lane.The part that its septation 341 is passed the volume pin is longer, and its length is more preferably greater than half of volume pin girth and less than volume pin girth, to realize wrapping up the end capacity that influences battery within reason again of negative or positive electrode.Shown in Fig. 3 (b), the rotation of volume pin 351 rotates to 90 rollers of backstop when spending, 355 backstops at volume pin 351 and lives barrier film 341.Be sent on the barrier film 331 that passes the volume pin when volume pin 351 rotates to nearly 180 positive plates 311 when spending, be located between two barrier films that pass the volume pin, and positive plate 321 be sent between the barrier film that does not pass the volume pin.Shown in Fig. 3 (c), backstop roller 355 is removed, and pressure roller 253 is resisted against on the volume pin 351.Fig. 3 (d) has shown the reeling condition of electricity core when 351 rotations 540 of volume pin are spent, and as can be seen, two-layer barrier film is distributing between the negative plate of the positive plate 311 at electric core center and the end of negative plate 321 and vicinity and the positive plate.
In sum, the winding mechanism of electric core winding equipment of the present utility model can be realized full automatic winding electricity core, be distributed with two-layer barrier film between the end of the electrode of the center of moulding electricity core and the adjacent electrode, also can guarantee the good insulation performance effect even electrode tip is jagged, improve the battery yields, guarantee the safe handling of battery.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (6)

1. electric core winding equipment, comprise winding mechanism, described winding mechanism comprises the volume pin and is used for cooperating to finish the pressure roller of coiling work with described volume pin, it is characterized in that: described winding mechanism also comprises membrane separation mechanism, and the part that described membrane separation mechanism is used for after two membrane portions are passed described volume pin two barrier films being passed described volume pin separately.
2. electric core winding equipment according to claim 1 is characterized in that, described electric core winding equipment also comprises:
The barrier film feed mechanism be used for two barrier films are sent to volume pin place, and part is passed described volume pin;
Anodal feed mechanism is used for providing positive plate to described winding mechanism; And
The negative pole feed mechanism is used for providing negative plate to described winding mechanism;
Wherein, a slice in positive plate and the negative plate is sent between two barrier films that pass described volume pin, and another sheet in positive plate and the negative plate is sent between two barrier films that do not pass described volume pin.
3. electric core winding equipment according to claim 2, it is characterized in that, described membrane separation mechanism comprises wind pushing mechanism, and described wind pushing mechanism is spent when 135 spend to the barrier film end air-supply of passing described volume pin, the membrane portions of passing described volume pin with separation in described volume pin rotation 45; Described running roller is being resisted against after the described membrane separation on the described volume pin, and a slice in two barrier films that blown open is crushed between described running roller and the volume pin.
4. electric core winding equipment according to claim 2, it is characterized in that, described membrane separation mechanism comprises the backstop roller, described two barrier films pass the length difference of the part of described volume pin, described stop roller is used for the long barrier film of length that when described volume pin rotates to predetermined angle two barrier films of backstop pass the part of volume pin, passes two barrier films of described volume pin with separation.
5. electric core winding equipment according to claim 2 is characterized in that, described membrane separation mechanism comprises the vacuum generator that a slice of being used for passing the barrier film of described volume pin holds.
6. electric core winding equipment according to claim 2 is characterized in that, described membrane separation mechanism comprises the electrostatic generator that a slice of being used for passing the barrier film of described volume pin holds.
CN2011200189922U 2010-12-14 2011-01-13 Cell winding device Expired - Lifetime CN201975467U (en)

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CN201010590963.3 2010-12-14
CN2011200189922U CN201975467U (en) 2010-12-14 2011-01-13 Cell winding device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163733A (en) * 2010-12-14 2011-08-24 惠州亿纬锂能股份有限公司 Battery cell winding method and equipment
CN105720310A (en) * 2016-04-13 2016-06-29 东莞锂威能源科技有限公司 Mechanism for dissociating battery cell winding needle and needle dissociating method for mechanism
CN110247095A (en) * 2019-05-23 2019-09-17 深圳市诚捷智能装备股份有限公司 Roll up needle assemblies and winding device

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CN102368566B (en) * 2011-09-16 2013-01-16 铜陵市三圆特种铸造有限责任公司 Semi-automatic winding machine and winding method for battery roll core
CN107275686A (en) * 2017-06-13 2017-10-20 天能电池集团有限公司 A kind of coiler device and method for winding of coiled battery pole group
CN111640974B (en) * 2020-06-29 2021-05-18 广东微电新能源有限公司 Automatic tab angle alignment mechanism of reverse-winding electric core winding machine
WO2023050939A1 (en) * 2021-09-30 2023-04-06 宁德时代新能源科技股份有限公司 Winding method, winding machine, electrode assembly and battery cell
CN114284571B (en) * 2021-12-30 2024-07-16 深圳吉阳智能科技有限公司 Winding device and winding method
CN116565282A (en) * 2022-01-28 2023-08-08 宁德时代新能源科技股份有限公司 Winding apparatus and winding method

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Publication number Priority date Publication date Assignee Title
CN2773920Y (en) * 2005-02-01 2006-04-19 比亚迪股份有限公司 Electrode core of lithium ion battery and lithium ion battery therewith
CN101047070A (en) * 2006-03-28 2007-10-03 江苏英泰电子有限公司 Winding method of battery cell pole group
CN102163733B (en) * 2010-12-14 2013-06-26 惠州亿纬锂能股份有限公司 Battery cell winding method and equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163733A (en) * 2010-12-14 2011-08-24 惠州亿纬锂能股份有限公司 Battery cell winding method and equipment
CN105720310A (en) * 2016-04-13 2016-06-29 东莞锂威能源科技有限公司 Mechanism for dissociating battery cell winding needle and needle dissociating method for mechanism
CN105720310B (en) * 2016-04-13 2018-08-03 东莞锂威能源科技有限公司 A kind of mechanism and its drawn needle method for detaching core coil needle
CN110247095A (en) * 2019-05-23 2019-09-17 深圳市诚捷智能装备股份有限公司 Roll up needle assemblies and winding device
CN110247095B (en) * 2019-05-23 2024-05-17 深圳市诚捷智能装备股份有限公司 Winding needle assembly and winding device

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CN102163733B (en) 2013-06-26

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