CN202275887U - Lithium ion power battery pole piece wrinkle resistant roller - Google Patents
Lithium ion power battery pole piece wrinkle resistant roller Download PDFInfo
- Publication number
- CN202275887U CN202275887U CN2011203537829U CN201120353782U CN202275887U CN 202275887 U CN202275887 U CN 202275887U CN 2011203537829 U CN2011203537829 U CN 2011203537829U CN 201120353782 U CN201120353782 U CN 201120353782U CN 202275887 U CN202275887 U CN 202275887U
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- China
- Prior art keywords
- pole piece
- lithium ion
- rolling
- ion power
- wrinkle resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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Abstract
The utility model discloses a lithium ion power battery pole piece wrinkle resistant roller, which comprises a frame, and the frame is respectively provided with an unwinding mechanism, a rolling mechanism and a winding mechanism, and a high-frequency heating apparatus is provided between the unwinding mechanism and the rolling mechanism for heating the pole piece through heat radiation. The high-frequency heating apparatus is added between the unwinding mechanism and the rolling mechanism of the roller, and the heating position is at the juncture of the coating area and un-coating area of the pole piece, and flexibility of the pole piece is added through the high frequency apparatus; the extension stress of the pole piece is released after the pole piece is rolled by the rolling roller of the rolling mechanism and gauffer does not appear.
Description
Technical field
The utility model relates to the lithium-ion-power cell making apparatus, specifically, relates to the wrinkle resistant roller of lithium ion power cell pole flakes.
Background technology
Lithium ion battery have voltage height, specific energy high, recycle often, advantage such as memory time is long; Be widely used in big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, therefore increasingly high to performance, the cost requirement of lithium ion battery.Present lithium-ion-power cell is to adopt two kinds of coating methods: intermittently coating method and strip coating method.Intermittently coating method causes the inconsistent of pole piece, thereby causes the decline of battery performance owing at initial (head) that be coated with and end position (tail) edge effect is arranged, and this mode is given up in making electrokinetic cell field; The mode of bar shaped coating, because pole piece is coating continuously, the high conformity of pole piece; Do not have the edge effect of head, tail, be widely used in the electrokinetic cell field, yet; Bar shaped is coated on and has uncoated zone between each dispensing area, when rolling, owing to can extend in band material position; And uncoated area is not rolled, and can not produce extension, like this because stress can cause gauffer in uncoated area; Owing to the accumulation of fold, fold can cause the pole piece broken belt with top pole piece bursting when rolling.
The anti-fold rolling method that adopts at present has two kinds, and the one, pole piece is cut from uncoated area, be divided into several rouleaus; Roll then; Avoid rolling zone and the generation that does not roll regional stress like this, but reduced production efficiency, increased the investment goods cost; Two are to use the mode of hot pressing, and milling roller is heated to 120 ℃, delay the generation of stress through the mode of hot pressing; But this mode can not be eliminated fold fully; Behind the pole piece that rolls continuously about 10 meters, have the generation of several folds, and the pole piece at fold position to be discarded; Thereby cause the decline of rate of finished products, production cost rises.
The utility model content
The technical problem to be solved of the utility model is to be directed against the deficiency that has fold when electrodes of lithium-ion batteries of the prior art is made, and provides a kind of lithium ion power cell pole flakes wrinkle resistant roller.
In order to solve the problems of the technologies described above; The wrinkle resistant roller of the lithium ion power cell pole flakes of the utility model; Comprise frame; Be provided with unreeling structure, rolling body and rolling-up mechanism on the frame in order, also be provided with between said unreeling structure and the said rolling body through the thermatron of thermal radiation to the pole piece heating.
The wrinkle resistant roller of above-mentioned lithium ion power cell pole flakes wherein, is provided with out the pole piece angular adjustment axle between said rolling body and the said rolling-up mechanism.
The wrinkle resistant roller of above-mentioned lithium ion power cell pole flakes, wherein, said thermatron is connected with cooling water pipe.
The wrinkle resistant roller of above-mentioned lithium ion power cell pole flakes, wherein, said cooling water pipe comprises valve, and said valve is connected with a controller, and the transducer that said controller and is gathered the pole piece temperature is connected.
The wrinkle resistant roller of above-mentioned lithium ion power cell pole flakes wherein, saidly goes out the pole piece angular adjustment axle and is arranged on the installing rack, and said installing rack is provided with microscler waist hole, and the said two ends that go out the pole piece angular adjustment axle are arranged in the said microscler waist hole.
The beneficial functional of the utility model is; Between the unreeling structure of roller and rolling body, increase thermatron; Heating location is in the dispensing area of pole piece and the intersection of uncoated area, through the flexibility of high-frequency device increase pole piece, behind the process milling roller of rolling body; The extension stress of pole piece can access release, can not produce gauffer.
Further, go out the pole piece angular adjustment axle in the pole piece direction increase that goes out of roller, like this, the variation of the angle through pole piece eliminates stress, and rolls gauffer with further elimination.
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail, but not as the qualification to the utility model.
Description of drawings
Fig. 1 is the structure diagram of the wrinkle resistant roller of lithium ion power cell pole flakes of the utility model;
Fig. 2 is the stereogram of the thermatron among Fig. 1;
Fig. 3 is a cooling water pipe control system structured flowchart;
Fig. 4 is for going out pole piece angular adjustment axle installing rack front view.
Wherein, Reference numeral
The 1-unreeling structure
The 2-rolling body
The 3-rolling-up mechanism
The 4-thermatron
The 41-heating location
5-goes out the pole piece angular adjustment axle
The 6-cooling water pipe
The 7-transducer
The 8-controller
9-cooling water pipe valve
The 10-installing rack
The microscler waist of 101-hole
Embodiment
Below in conjunction with accompanying drawing the utility model is done concrete description:
Consult Fig. 1; The wrinkle resistant roller of a kind of lithium ion power cell pole flakes of the utility model comprises frame; Be provided with unreeling structure 1, rolling body 2 and rolling-up mechanism 3 on the frame in order; Wherein, also be provided with between unreeling structure 1 and the rolling body 2, be provided with out pole piece angular adjustment axle 5 between rolling body 2 and the rolling-up mechanism 3 through the thermatron 4 of thermal radiation to the pole piece heating.Because unreeling structure 1, rolling body 2 and rolling-up mechanism 3 all belong to prior art, do not give unnecessary details with regard to it not being done more at this.
Consult Fig. 2 and Fig. 3, thermatron 4 is connected with cooling water pipe 6, and cooling water pipe 6 comprises that valve (promptly; Cooling water pipe valve 9 among Fig. 3), cooling water pipe valve 9 is connected with controller 8, and the transducer 7 that controller 8 and is gathered the pole piece temperature is connected; Thermatron 4 is to adopt magnetic field induction eddy current heating principle; Utilize electric current to pass through coil and produce magnetic field, when the magnetic line of force in the magnetic field passes through metal material, make heater body heating at a high speed voluntarily itself; And then heatable substance, and can reach gratifying temperature at short notice.Thermatron 4 itself belongs to prior art, also it is not done at this more and gives unnecessary details.
Consult Fig. 4; Going out pole piece angular adjustment axle 5 is arranged on the installing rack 10; Installing rack 10 is provided with microscler waist hole 101; The two ends that go out pole piece angular adjustment axle 5 are arranged in this microscler waist hole 101, go out the position of pole piece angular adjustment axle 5 in microscler waist hole 101 through adjusting this, can realize going out the adjusting of pole piece angular adjustment axle 5.
The operation principle of the utility model is: preheat through 4 pairs of pole pieces that unreel of thermatron, heating location 41 directly affacts on the pole piece, and heat delivered is fast, reduces the loss of energy, utilizes the cooling water control temperature simultaneously, and the heating-up temperature consistency is high.Under the situation of 30 meters/minute of pole piece rolling speeds, heating-up temperature is set in 120 ℃, and the pole piece temperature remains on 115 ± 2 ℃, and under this temperature, pole piece can not produce STRESS VARIATION.In addition, adopt the adjustable design that goes out pole piece angular adjustment axle 5, go out the angle of milling roller through the adjustment pole piece, the stress of pole piece can be eliminated fully.
To roll strip coating positive plate is example, and when using normal roller, pole piece the fold phenomenon occurs in the uncoated position of strip coating, in any case the temperature of adjustment milling roller hot pressing; All can't reach the phenomenon of removing gauffer, use the structure of the roller of the utility model, thermatron 4 is set in 120 ℃, open cooling water; When temperature reaches 120 ℃, wear band and carry out pressure testing, when adjust to regulation roll thickness after, with 5 meters/minute speed; The angle that goes out pole piece angular adjustment axle 5 of adjustment pole piece after pole piece does not have gauffer fully, is regulated the speed 30 meters/minute; Normally roll, pole piece gauffer do not occur in the process of rolling.This kind mode is equally applicable to cathode pole piece simultaneously.
The utility model can be applicable to that thickness range is the lithium ion power cell pole flakes of 80um-200um, and is applicable to that the rolling speed scope is 30 meters/minute a lithium ion power cell pole flakes.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (5)
1. wrinkle resistant roller of lithium ion power cell pole flakes; Comprise frame; Be provided with unreeling structure, rolling body and rolling-up mechanism on the frame in order, it is characterized in that, also be provided with between said unreeling structure and the said rolling body through the thermatron of thermal radiation to the pole piece heating.
2. the wrinkle resistant roller of lithium ion power cell pole flakes according to claim 1 is characterized in that, is provided with out the pole piece angular adjustment axle between said rolling body and the said rolling-up mechanism.
3. the wrinkle resistant roller of lithium ion power cell pole flakes according to claim 1 and 2 is characterized in that said thermatron is connected with cooling water pipe.
4. the wrinkle resistant roller of lithium ion power cell pole flakes according to claim 3 is characterized in that said cooling water pipe comprises valve, and said valve is connected with a controller, and the transducer that said controller and is gathered the pole piece temperature is connected.
5. the wrinkle resistant roller of lithium ion power cell pole flakes according to claim 2; It is characterized in that; Saidly go out the pole piece angular adjustment axle and be arranged on the installing rack, said installing rack is provided with microscler waist hole, and the said two ends that go out the pole piece angular adjustment axle are arranged in the said microscler waist hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203537829U CN202275887U (en) | 2011-09-20 | 2011-09-20 | Lithium ion power battery pole piece wrinkle resistant roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203537829U CN202275887U (en) | 2011-09-20 | 2011-09-20 | Lithium ion power battery pole piece wrinkle resistant roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275887U true CN202275887U (en) | 2012-06-13 |
Family
ID=46196225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203537829U Expired - Fee Related CN202275887U (en) | 2011-09-20 | 2011-09-20 | Lithium ion power battery pole piece wrinkle resistant roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275887U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258997A (en) * | 2013-04-08 | 2013-08-21 | 内蒙古稀奥科镍氢动力电池有限公司 | Method for eliminating battery plate stress |
| CN108199005A (en) * | 2018-01-03 | 2018-06-22 | 浙江衡远新能源科技有限公司 | The rolling method and equipment of a kind of battery pole piece |
| CN109304893A (en) * | 2018-11-06 | 2019-02-05 | 力信（江苏）能源科技有限责任公司 | A kind of area battery pole piece Kong Bo heating device |
| CN109686915A (en) * | 2018-12-26 | 2019-04-26 | 蜂巢能源科技有限公司 | Based lithium-ion battery positive plate and preparation method, lithium ion battery |
| WO2020078201A1 (en) * | 2018-10-16 | 2020-04-23 | 深圳吉阳智能科技有限公司 | Battery electrode piece thermal compounding apparatus and method for using same to carry out thermo-compression bonding on battery electrode piece assembly |
| CN112743894A (en) * | 2020-12-30 | 2021-05-04 | 上海兰钧新能源科技有限公司 | Rolling mechanism |
| CN109304893B (en) * | 2018-11-06 | 2024-05-24 | 利信(江苏)能源科技有限责任公司 | Empty foil area heating device of battery pole piece |
-
2011
- 2011-09-20 CN CN2011203537829U patent/CN202275887U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258997A (en) * | 2013-04-08 | 2013-08-21 | 内蒙古稀奥科镍氢动力电池有限公司 | Method for eliminating battery plate stress |
| CN103258997B (en) * | 2013-04-08 | 2015-02-25 | 内蒙古稀奥科镍氢动力电池有限公司 | Method for eliminating battery plate stress |
| CN108199005A (en) * | 2018-01-03 | 2018-06-22 | 浙江衡远新能源科技有限公司 | The rolling method and equipment of a kind of battery pole piece |
| CN108199005B (en) * | 2018-01-03 | 2020-06-23 | 浙江衡远新能源科技有限公司 | Rolling method and equipment for battery pole piece |
| WO2020078201A1 (en) * | 2018-10-16 | 2020-04-23 | 深圳吉阳智能科技有限公司 | Battery electrode piece thermal compounding apparatus and method for using same to carry out thermo-compression bonding on battery electrode piece assembly |
| CN109304893A (en) * | 2018-11-06 | 2019-02-05 | 力信（江苏）能源科技有限责任公司 | A kind of area battery pole piece Kong Bo heating device |
| CN109304893B (en) * | 2018-11-06 | 2024-05-24 | 利信(江苏)能源科技有限责任公司 | Empty foil area heating device of battery pole piece |
| CN109686915A (en) * | 2018-12-26 | 2019-04-26 | 蜂巢能源科技有限公司 | Based lithium-ion battery positive plate and preparation method, lithium ion battery |
| CN112743894A (en) * | 2020-12-30 | 2021-05-04 | 上海兰钧新能源科技有限公司 | Rolling mechanism |
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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: 20120613 Termination date: 20120920 |