CN201438491U - Lithium ion battery pole piece winding device - Google Patents
Lithium ion battery pole piece winding device Download PDFInfo
- Publication number
- CN201438491U CN201438491U CN2009203054949U CN200920305494U CN201438491U CN 201438491 U CN201438491 U CN 201438491U CN 2009203054949 U CN2009203054949 U CN 2009203054949U CN 200920305494 U CN200920305494 U CN 200920305494U CN 201438491 U CN201438491 U CN 201438491U
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- Prior art keywords
- pin
- pole piece
- lithium
- electrodes
- battery
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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
Abstract
The utility model discloses a lithium ion battery pole piece winding device which is characterized in that a main winding needle is extended outwards from an end surface of a power drive shaft, an auxiliary needle is hidden by the end surface, and the auxiliary needle pops up when the main winding needle winds the pole piece to a certain circle number. The utility model has the benefits that the lithium ion battery pole piece winding device ensures the gap between battery pole pieces, increases the liquid absorption amount of a membrane and the pole pieces, prevents the battery during the cycle use and the multiplied charging/discharging from phenomena like pole piece distortion, folding and breakage which are caused by too tight core-winding due to pole piece expansion, ensures the safe use of the battery, and prolongs the service life.
Description
Technical field
The utility model belongs to battery and makes the field, especially relates to a kind of electrodes of lithium-ion batteries coiler device.
Background technology
At present, the winding method of lithium ion battery cell all is together around the rotation of volume pin after positive plate and negative plate are separated by with barrier film, rolled up the back and stopped adhesive tape terminal stickup of volume core, this winding method less battery of the number of turns that is used to reel is comparatively suitable, when when it come to arriving the many battery of the coiling number of turns, the volume core that this kind winding method is rolled up is tighter, the liquid absorption of barrier film is less, electrolyte is difficult to roll up in-core layer pole piece and permeates fully, the performance of the capacity of battery is not high like this, the internal resistance of cell is bigger, big multiplying power discharging heat production is many, and battery is rolled up the core tension because of the pole piece expansion and can be caused the pole piece distortion when recycling with high rate charge-discharge, fold and part phenomenon, the useful life and the security performance of battery also are affected.Therefore, existing coiling technology can not ensure the performance of the more lithium ion battery of the coiling number of turns.For example Chinese patent CN2701086Y relates to a kind of artificial auxiliary coiler device of battery, comprise board, the transmission case of master file pin, drive motors, control device, secondary volume pin and auxiliary engine bed, board is rigid structural member and has the firm installation table top of level, auxiliary engine bed is that box structure and all be fixed on master file pin transmission case is installed on the table top, on the relative two sides of auxiliary engine bed case, be fixed with two axle sleeves that endwisely slip, wherein movingly and supporting a back and forth axle, back and forth vertical axle center of axle or coincidence parallel with the center of rotation of master file pin, back and forth axle one end is provided with secondary volume needle shaft bearing and rolling bearing, in rolling bearing, be equipped with Assembly rail, removably be connected with secondary volume pin on the Assembly rail outer end; Back and forth be provided with longitudinal rack on the axle surface, the auxiliary engine bed case is provided with the manual gear mechanism that drives this longitudinal rack.The utility model is with low cost, have more rational volume pin method of clamping, can control deciliter dynamics of volume pin and battery better, and raising rolls out the quality of battery.This structure more complicated, and can not guarantee gap between the electrode plates.
Summary of the invention
The utility model mainly is to solve the existing existing defective of coiling technology, and a kind of electrodes of lithium-ion batteries coiler device is provided.Make battery battery core increase the slackness of volume core within the specific limits, make barrier film, pole piece all play certain facilitation, and make the high rate charge-discharge performance of battery and cycle life all obtain significantly promoting the absorption of electrolyte, the reduction of the internal resistance of cell, the performance of battery capacity.
The utility model solves the problems of the technologies described above the device that is adopted: a kind of electrodes of lithium-ion batteries coiler device is characterized in that: the end face at Power Available Shaft is projected with a master file pin, and described end face is concealed with auxilliary pin.
On the master file pin of up-coiler, install barrier film, put positive/negative plate then well, begin to reel, it is characterized in that: when being wound up into a fixing turn, insert auxilliary pin, continue to reel; Coiling is finished, and stops adhesive tape terminal stickup of volume core; Extract auxilliary pin out, and then extract the master file pin out, the volume core completes.Adopt this method, it is less relatively that the master file pin can be made, after extracting master file pin and auxilliary pin out, guarantee the gap between the pole piece, increase the liquid absorption of barrier film and pole piece, avoid battery when recycling, roll up the core tension because of the pole piece expansion and cause pole piece distortion, fold and part phenomenon, guarantee that battery is safe in utilization with high rate charge-discharge.
As preferably, described master file pin is two columns that separate.
As preferably, described auxilliary pin be shaped as round or ellipsoid or flat kidney piece or crescent moon body, the cross section of master file pin and auxilliary pin does not have wedge angle, smooth surface is easy to extract out, prevents to scratch barrier film and positive/negative plate.
As preferably, described auxilliary pin is parallel with the master file pin.
As preferably, described auxilliary pin is the 1-6 root.
As preferably, the number of turns and position that described auxilliary pin ejects can be regulated.
In sum, the beneficial effect that a kind of electrodes of lithium-ion batteries coiler device of the utility model brings is: guarantee the gap between the battery pole piece, increase the liquid absorption of barrier film and pole piece, avoid battery when recycling with high rate charge-discharge, roll up the core tension because of the pole piece expansion and cause pole piece distortion, fold and part phenomenon, guarantee that battery is safe in utilization, increase the service life.
Description of drawings
Accompanying drawing 1 is that a kind of electrodes of lithium-ion batteries coiler device volume of the utility model core twists in around preceding schematic diagram;
Accompanying drawing 2 is a kind of electrodes of lithium-ion batteries coiler device volume of the utility model core schematic diagrames when pin is assisted in firm insertion;
Accompanying drawing 3 is a kind of electrodes of lithium-ion batteries coiler device volume of the utility model core schematic diagrames when having pasted the termination adhesive tape;
Accompanying drawing 4 is the another kind of electrodes of lithium-ion batteries coiler device volume core of the utility model schematic diagrames before coiling;
Accompanying drawing 5 is the another kind of electrodes of lithium-ion batteries coiler device volume of the utility model core schematic diagrames when pin is assisted in firm insertion;
Accompanying drawing 6 is the another kind of electrodes of lithium-ion batteries coiler device volume of the utility model core schematic diagrames when having pasted the termination adhesive tape;
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: a kind of electrodes of lithium-ion batteries coiler device, shown in accompanying drawing 1,2,3, be projected with a master file pin 4 at the end face of Power Available Shaft, master file pin 4 be in the middle of gapped two semicircular body form, described end face is concealed with 1 cylindrical auxilliary pin 5.
During use, positive plate 1, negative plate 2 are sticked on the barrier film 3, and barrier film 3 passes the gap at master file pin 4 middle parts, 4 rotations of master file pin, when being wound up into 12 number of turns, auxilliary pin 5 ejects, and continues to reel, after having reeled, stick adhesive tape 7 at volume core 6 ends, extract auxilliary pin then out, extract the master file pin again out, the volume core is finished.
Embodiment 2: referring to accompanying drawing 4,5,6, master file pin 41 is two cylinders that spacing is arranged, and the driving end face both sides of master file pin 41 keep respectively 3 on the auxilliary pin 51 of waist shape respectively.
During use, positive plate 1, negative plate 2 are sticked on the barrier film 3, barrier film 3 passes the gap at master file pin 41 middle parts, 41 rotations of master file pin, when being wound up into 4 number of turns, 1 auxilliary pin 51 of a side ejects, continue to reel, during 8 number of turns, 1 auxilliary pin 51 of an other side ejects, in like manner every rotation 4 circles of master file pin eject an auxilliary pin 51, after having reeled, stick adhesive tape 7, extract auxilliary pin then out at volume core 6 ends, extract the master file pin again out, the volume core is finished.
Specific embodiment described herein only is that the utility model spirit is illustrated, the utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. electrodes of lithium-ion batteries coiler device, it is characterized in that: the end face at Power Available Shaft is projected with a master file pin, and described end face is concealed with auxilliary pin.
2. a kind of electrodes of lithium-ion batteries coiler device according to claim 1 is characterized in that: described master file pin is two columns that separate.
3. a kind of electrodes of lithium-ion batteries coiler device according to claim 1 is characterized in that: described auxilliary pin be shaped as round or ellipsoid or flat kidney piece or crescent moon body, the cross section of master file pin and auxilliary pin does not have wedge angle, smooth surface.
4. according to claim 1 or 3 described a kind of electrodes of lithium-ion batteries coiler devices, it is characterized in that: described auxilliary pin is the 1-6 root.
5. according to claim 1 or 3 described a kind of electrodes of lithium-ion batteries coiler devices, it is characterized in that: the number of turns and position that described auxilliary pin ejects can be regulated.
6. according to claim 1 or 3 described a kind of electrodes of lithium-ion batteries coiler devices, it is characterized in that: described auxilliary pin is parallel with the master file pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203054949U CN201438491U (en) | 2009-07-02 | 2009-07-02 | Lithium ion battery pole piece winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203054949U CN201438491U (en) | 2009-07-02 | 2009-07-02 | Lithium ion battery pole piece winding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438491U true CN201438491U (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203054949U Expired - Fee Related CN201438491U (en) | 2009-07-02 | 2009-07-02 | Lithium ion battery pole piece winding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157754A (en) * | 2011-03-15 | 2011-08-17 | 深圳市赢合科技有限公司 | Method for winding battery cell of lithium ion |
| CN101707264B (en) * | 2009-07-02 | 2013-07-03 | 宁波维科电池有限公司 | Method for winding pole piece of lithium ion battery and winding device thereof |
| CN108336418A (en) * | 2018-03-27 | 2018-07-27 | 江苏塔菲尔新能源科技股份有限公司 | A kind of winding process improving battery core dilatancy |
-
2009
- 2009-07-02 CN CN2009203054949U patent/CN201438491U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707264B (en) * | 2009-07-02 | 2013-07-03 | 宁波维科电池有限公司 | Method for winding pole piece of lithium ion battery and winding device thereof |
| CN102157754A (en) * | 2011-03-15 | 2011-08-17 | 深圳市赢合科技有限公司 | Method for winding battery cell of lithium ion |
| CN108336418A (en) * | 2018-03-27 | 2018-07-27 | 江苏塔菲尔新能源科技股份有限公司 | A kind of winding process improving battery core dilatancy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20110702 |