CN208127310U - Pole piece mends lithium device - Google Patents
Pole piece mends lithium device Download PDFInfo
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- CN208127310U CN208127310U CN201820503914.3U CN201820503914U CN208127310U CN 208127310 U CN208127310 U CN 208127310U CN 201820503914 U CN201820503914 U CN 201820503914U CN 208127310 U CN208127310 U CN 208127310U
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- pole piece
- roller
- lithium
- pedestal
- pressure roller
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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 provides a kind of pole piece benefit lithium device comprising roller press mechanism, driving mechanism, gap adjusting mechanism and testing agency.Roller press mechanism includes the first pressure roller and the second pressure roller, and pole piece and lithium film pass through between the first pressure roller and the second pressure roller and by roll-in.Driving mechanism is connected to roller press mechanism and controls the roller pressure between the first pressure roller and the second pressure roller.Gap adjusting mechanism is set to roller press mechanism and adjusts the gap between the first pressure roller and the second pressure roller.Testing agency is set to the downstream of roller press mechanism and the thickness for detecting the pole piece after roller press mechanism, and being capable of feedback control driving mechanism and gap adjusting mechanism.The pole piece of the utility model, which mends lithium device, can be realized the nipping process that simultaneously closed loop feedback control pole piece is monitored online that pole piece mends thickness after lithium, and then the consistency of thickness of raising pole piece, saves material and improves the yields for mending lithium.
Description
Technical field
Lithium field is mended the utility model relates to pole piece more particularly to a kind of pole piece mends lithium device.
Background technique
Lithium ion battery is widely used in consuming due to advantages such as energy density height, long service life, green non-pollutions
Electronic product and electric car field.However lithium ion battery will form solid electrolyte film during first charge-discharge
(SEI film), and solid electrolyte film can consume part lithium, cause the loss of lithium, and the loss of this irreversible capacity for the first time is straight
Connect the loss for leading to capacity of lithium ion battery.Currently, lithium ion battery improves capacity and circulation longevity by mending lithium on pole piece
Life.Mend lithium technique core be roll with it is laminating.Calendering technology is by the rolling effect of stack by 0.25mm~2mm
Lithium band calendering to traction film on and form lithium film, and laminating technique will be drawn on film by the rolling effect of laminating roller
Lithium is laminating to arrive pole piece.
Currently, during laminating, due to the roller pressure of laminating roller, roll-in clearance constant, so, if pole piece supplied materials
The appearance deviation of thickness or lithium film thickness, then the thickness fluctuation that will lead to after pole piece benefit lithium is larger (10 μm of >).
Pole piece after mending lithium is by winding preparation battery core, since the thickness fluctuation of the pole piece after benefit lithium is larger, so pole piece
Multiple tabs be easy dislocation after the coiling, reduce the yields of battery core, waste material.
Utility model content
In view of the problems in the background art, the purpose of this utility model is to provide a kind of pole pieces to mend lithium device,
The consistency of thickness of pole piece can be improved, material is saved and improves the yields for mending lithium.
To achieve the goals above, the utility model provides a kind of pole piece benefit lithium device comprising roller press mechanism, driving
Mechanism, gap adjusting mechanism and testing agency.Roller press mechanism includes the first pressure roller and the second pressure roller, and pole piece and lithium film are pressed from first
It is passed through between roller and the second pressure roller and by roll-in.Driving mechanism is connected to roller press mechanism and controls the first pressure roller and the second pressure roller
Between roller pressure.Gap adjusting mechanism is set to roller press mechanism and adjusts the gap between the first pressure roller and the second pressure roller.Inspection
It surveys mechanism and is set to the downstream of roller press mechanism and the thickness for detecting the pole piece after roller press mechanism, and being capable of feedback control
Driving mechanism and gap adjusting mechanism.
The beneficial effects of the utility model are as follows：Testing agency can real-time detection pole piece mend lithium after thickness, if pole
Thickness after piece benefit lithium fluctuates, and testing agency both can regulate and control the first pressure roller and the second pressure roller pair with feedback control driving mechanism
The roller pressure of pole piece, and then regulate and control pole piece and mend the thickness after lithium；Testing agency can also be adjusted with feedback control gap adjusting mechanism
The gap of the first pressure roller and the second pressure roller is controlled, and then manages pole piece in real time and mends the thickness after lithium.The pole piece of the utility model mends lithium
Device can be realized pole piece and mend the on-line monitoring of thickness and the nipping process of closed loop feedback control pole piece after lithium, and then improve pole piece
Consistency of thickness, save material simultaneously improve mend lithium yields.
Detailed description of the invention
Fig. 1 is the schematic diagram that lithium device is mended according to the pole piece of the utility model.
Fig. 2 is schematic diagram of the pole piece in lithium up process.
Wherein, the reference numerals are as follows：
1 roller press mechanism, 34 second skewback
11 first pressure roller, 35 distance measuring sensor
12 second pressure roller, 36 needle roller
13 first pedestal, 4 testing agency
14 second pedestal, 5 rack
2 driving mechanism, 6 pole piece let off roll
21 first driver, 7 pole piece winding roller
22 pressure sensor, 8 lithium film wind-up roll
3 gap adjusting mechanism P pole pieces
31 second driver L lithium films
32 lead screw L1 draw film
33 first skewback L2 lithiums
Specific embodiment
Lithium device is mended with reference to the accompanying drawings the pole piece of the utility model is described in detail.
Referring to Figures 1 and 2, it includes roller press mechanism 1, driving mechanism 2, gap that pole piece according to the present utility model, which mends lithium device,
Regulating mechanism 3 and testing agency 4.Roller press mechanism 1 includes that the first pressure roller 11 and the second pressure roller 12, pole piece P and lithium film L are pressed from first
It is passed through between roller 11 and the second pressure roller 12 and by roll-in.Driving mechanism 2 is connected to roller press mechanism 1 and controls 11 He of the first pressure roller
Roller pressure between second pressure roller 12.Gap adjusting mechanism 3 is set to roller press mechanism 1 and regulates and controls the first pressure roller 11 and the second pressure roller
Gap between 12.Testing agency 4 is set to the downstream of roller press mechanism 1 and for detecting the pole piece P's after roller press mechanism 1
Thickness, and being capable of feedback control driving mechanism 2 and gap adjusting mechanism 3.
The pole piece of the utility model mends lithium device for carrying out benefit lithium to pole piece P.Specifically, referring to Fig. 2, when needs are to pole
When the surface of piece P carries out benefit lithium, drawing pole piece P and lithium film L, (lithium film L includes drawing film L1 and being attached to draw the surface film L1
Lithium L2) it is passed through between the first pressure roller 11 and the second pressure roller 12, under the first pressure roller 11 and 12 rolling effect of the second pressure roller, lithium film
The laminating surface to pole piece P the lithium L2 of L；Off-type force between lithium L2 and pole piece P is greater than lithium L2 and draws release between film L1
Power, so lithium L2 is separated simultaneously with traction film L1 after pole piece P and lithium film L is pierced by between the first pressure roller 11 and the second pressure roller 12
The laminating surface to pole piece P, to complete the benefit lithium of pole piece P.
Testing agency 4 can real-time detection pole piece P mend lithium after thickness (i.e. the sum of the thickness of pole piece P and lithium L2), if
Pole piece P mends the thickness after lithium and fluctuates, and testing agency 4 both can regulate and control the first pressure roller 11 and the with feedback control driving mechanism 2
Two pressure rollers 12 regulate and control pole piece P and mend the thickness after lithium to the roller pressure of pole piece P；Testing agency 4 can also be with feedback control gap
Regulating mechanism 3 regulates and controls the gap of the first pressure roller 11 and the second pressure roller 12, and then manages pole piece P in real time and mend the thickness after lithium.This
The pole piece of utility model, which mends lithium device and can be realized pole piece P, mends the on-line monitoring of thickness after lithium and closed loop feedback control pole piece P
Nipping process, and then improve the consistency of thickness of pole piece P, save material and improve the yields for mending lithium.
Pole piece P after mending lithium can prepare battery core by winding.Pole piece P usually requires to cut out multiple tabs, passes through reality
When control pole piece P mend the thickness after lithium, it is ensured that the degree of registration after the multiple tab winding, and then improve the good of battery core
Product rate reduces the waste of material.Pole piece P can be the cathode pole piece in battery core.
Referring to Fig.1, testing agency 4 includes thickness measurement sensor, and it further includes control system that the pole piece, which mends lithium device, and monitoring is surveyed
Thickness data measured by thick sensor and feedback control gap adjusting mechanism 3 and driving mechanism 2.Testing agency 4 may also include
Motion control mechanism, thickness measurement sensor is fixed on motion control mechanism and is driven by motion control mechanism to be measured in different positions
Pole piece P mends the thickness after lithium.
Referring to Fig.1, it further includes rack 5 that pole piece, which mends lithium device, and roller press mechanism 1 further includes be slideably positioned in rack 5 first
Pedestal 13 and the second pedestal 14 for being fixed on rack 5；First pressure roller 11 is set to the first pedestal 13, and the second pressure roller 12 is set to
Two pedestals 14.First pedestal 13 and the second pedestal 14 can arrange up and down, and the first pedestal 13, which slides up and down to, is set to rack 5.The
One pressure roller 11 is rotatably arranged in the first pedestal 13 by bearing, and the second pressure roller 12 is rotatably arranged in the second pedestal by bearing
14。
It further includes dynamical system and transmission system that the pole piece of the utility model, which mends lithium device, and dynamical system passes through transmission system
The first pressure roller 11 and the second pressure roller 12 is driven to rotate synchronously.
Driving mechanism 2 includes the first driver 21 and pressure sensor 22, and the first driver 21 is fixed on rack 5 and connects
In the first pedestal 13, pressure sensor 22 is set between the first driver 21 and the first pedestal 13.First driver 21 via
First pedestal 13 drives the first pressure roller 11, to regulate and control the first pressure roller 11 to the roller pressure of pole piece P；Pressure sensor 22 is to monitor
And feed back the size of roller pressure.First driver 21 can be hydraulic cylinder, pneumohydraulic pressure-cylinder or electric cylinders, preferably pneumohydraulic pressure-cylinder.
Specifically, when thickness is bigger than normal after thickness measurement sensor detects that pole piece P mends lithium, the first driver 21 is via the first base
Seat 13 incrementally increases the power applied to the first pressure roller 11, until after pole piece P benefit lithium in caliper recovery to setting range；When thickness measuring passes
Sensor detect pole piece P mend lithium after thickness it is less than normal when, the first driver 21 is gradually reduced via the first pedestal 13 to the first pressure roller
11 power applied, until after pole piece P benefit lithium in caliper recovery to setting range.
Gap adjusting mechanism 3 includes that the second driver 31, lead screw 32, the first skewback 33, the second skewback 34 and ranging pass
Sensor 35；Second driver 31 is fixed on rack 5, and the first skewback 33 is set between the first pedestal 13 and the second pedestal 14, silk
Thick stick 32 connects the second driver 31 and the first skewback 33；Distance measuring sensor 35 is fixed on the second pedestal 14 and for detecting the first base
The spacing of seat 13 and the second pedestal 14；Second skewback 34 is fixed on the first pedestal 13, and the first skewback 33 and the second skewback 34 have
The inclined-plane being slidably matched.The horizontal sliding of first skewback 33 can be converted to the upper and lower of the second skewback 34 by the inclined-plane of the cooperation
Sliding.Distance measuring sensor 35 can monitor the spacing of the first pedestal 13 and the second pedestal 14 in real time, and feed back and arrive control system.The
Two drivers 31 can be servo motor.
When thickness is bigger than normal after thickness measurement sensor detects that pole piece P mends lithium, referring to Fig.1, the second driver 31 is via lead screw
32 gradually push to the right the first skewback 33, and the first pedestal 13 moves down under the pressure of the first driver 21, to reduce the
Gap between one pressure roller 11 and the second pressure roller 12, until after pole piece P benefit lithium in caliper recovery to setting range；When thickness measuring senses
Device detect pole piece P mend lithium after thickness it is less than normal when, referring to Fig.1, the second driver 31 gradually pushes first via lead screw 32 to the left
Skewback 33, the first skewback 33 push up the first pedestal 13 via the second skewback 34, to increase the first pressure roller 11 and the second pressure
Gap between roller 12, until after pole piece P benefit lithium in caliper recovery to setting range.
The inclined-plane of first skewback 33 is equipped with needle roller 36, and needle roller 36 is resisted against the inclined-plane of the second skewback 34.Needle roller 36 can be with
Reduce the frictional force of the first skewback 33 and the second skewback 34.First skewback 33 be held on the second skewback 34 and the second pedestal 14 it
Between.Lead screw 32 may be directly connected to the first skewback 33.
The Measurement Resolution of distance measuring sensor 35 is less than or equal to 0.1 μm.Distance measuring sensor 35 passes through the first pedestal 13 of monitoring
And second the spacing of pedestal 14 carry out the size of roll gap between indirect monitoring the first pressure roller 11 and the second pressure roller 12.
It is mended in lithium device in pole piece according to the present utility model, both can improve pole by individually controlling driving mechanism 2
Piece P mends the consistency of thickness after lithium, can also improve pole piece P by individually controlling gap adjusting mechanism 3 and mend the thickness after lithium
Consistency, it is of course also possible to improve the thickness after pole piece P mends lithium by controlling driving mechanism 2 and gap adjusting mechanism 3 simultaneously
Consistency.
It further includes pole piece let off roll 6 and pole piece winding roller 7 that the pole piece, which mends lithium device, and pole piece let off roll 6 is set to roll-in
The upstream of mechanism 1 and the pole piece P for being used to be arranged lithium to be mended, pole piece winding roller 7 are set to the downstream of testing agency 4 and for winding
Pole piece P after mending lithium.
It further includes the lithium film wind-up roll 8 for being set to the downstream of roller press mechanism 1, lithium film wind-up roll 8 that the pole piece, which mends lithium device,
For winding the traction film L1 after roller press mechanism 1.By the way that lithium film L can be prepared by lithium band calendering to traction film L1.
It can be laminated referring to Fig. 2, lithium film L and pole piece P into the roll gap between the first pressure roller 11 and the second pressure roller 12, and pole piece
Two surfaces of P are opposite with the lithium L2 on lithium film L respectively.
Claims (10)
1. a kind of pole piece mends lithium device, which is characterized in that including roller press mechanism (1), driving mechanism (2), gap adjusting mechanism (3)
With testing agency (4)；
Roller press mechanism (1) includes the first pressure roller (11) and the second pressure roller (12), and pole piece (P) and lithium film (L) are from the first pressure roller (11)
And second pass through between pressure roller (12) and by roll-in；
Driving mechanism (2) is connected to roller press mechanism (1) and controls the roller pressure between the first pressure roller (11) and the second pressure roller (12)；
Between gap adjusting mechanism (3) is set to roller press mechanism (1) and regulates and controls between the first pressure roller (11) and the second pressure roller (12)
Gap；
Testing agency (4) is set to the downstream of roller press mechanism (1) and for detecting the pole piece (P) after roller press mechanism (1)
Thickness, and being capable of feedback control driving mechanism (2) and gap adjusting mechanism (3).
2. pole piece mends lithium device according to claim 1, which is characterized in that it further includes rack (5), roll-in that pole piece, which mends lithium device,
Mechanism (1) further includes the first pedestal (13) for being slideably positioned in rack (5) and the second pedestal (14) for being fixed on rack (5)；The
One pressure roller (11) is set to the first pedestal (13), and the second pressure roller (12) is set to the second pedestal (14).
3. pole piece mends lithium device according to claim 2, which is characterized in that driving mechanism (2) includes the first driver (21)
With pressure sensor (22), the first driver (21) is fixed on rack (5) and is connected to the first pedestal (13), pressure sensor
(22) it is set between the first driver (21) and the first pedestal (13).
4. pole piece mends lithium device according to claim 2, which is characterized in that gap adjusting mechanism (3) includes the second driver
(31), lead screw (32), the first skewback (33), the second skewback (34) and distance measuring sensor (35)；
Second driver (31) is fixed on rack (5), and the first skewback (33) is set to the first pedestal (13) and the second pedestal (14)
Between, lead screw (32) connects the second driver (31) and the first skewback (33)；
Distance measuring sensor (35) is fixed on the second pedestal (14) and for detecting between the first pedestal (13) and the second pedestal (14)
Away from；
Second skewback (34) is fixed on the first pedestal (13), and the first skewback (33) and the second skewback (34) are oblique with being slidably matched
Face.
5. pole piece mends lithium device according to claim 4, which is characterized in that the inclined-plane of the first skewback (33) is equipped with needle roller
(36), needle roller (36) is resisted against the inclined-plane of the second skewback (34).
6. pole piece mends lithium device according to claim 4, which is characterized in that the first skewback (33) is held on the second skewback (34)
And second between pedestal (14).
7. pole piece mends lithium device according to claim 4, which is characterized in that lead screw (32) is directly connected in the first skewback
(33)。
8. pole piece mends lithium device according to claim 1, which is characterized in that testing agency (4) includes thickness measurement sensor；It is described
It further includes control system that pole piece, which mends lithium device, monitors thickness data measured by thickness measurement sensor and feedback control gap adjustment machine
Structure (3) and driving mechanism (2).
9. pole piece mends lithium device according to claim 1, which is characterized in that it further includes that pole piece unreels that the pole piece, which mends lithium device,
Roller (6) and pole piece winding roller (7), pole piece let off roll (6) are set to the upstream of roller press mechanism (1) and the pole for lithium to be mended to be arranged
Piece (P), pole piece winding roller (7) are set to the downstream of testing agency (4) and for winding the pole piece (P) after mending lithium.
10. pole piece mends lithium device according to claim 1, which is characterized in that lithium film (L) includes traction film (L1) and is attached to
Draw the lithium (L2) on the surface film (L1)；It further includes the lithium film receipts for being set to the downstream of roller press mechanism (1) that the pole piece, which mends lithium device,
Winding up roller (8), lithium film wind-up roll (8) is for winding the traction film (L1) after roller press mechanism (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503914.3U CN208127310U (en) | 2018-04-10 | 2018-04-10 | Pole piece mends lithium device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503914.3U CN208127310U (en) | 2018-04-10 | 2018-04-10 | Pole piece mends lithium device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208127310U true CN208127310U (en) | 2018-11-20 |
Family
ID=64190618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820503914.3U Active CN208127310U (en) | 2018-04-10 | 2018-04-10 | Pole piece mends lithium device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208127310U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328242A (en) * | 2019-08-06 | 2019-10-15 | 河北银隆新能源有限公司 | Regulating device and roll gap adjustment method |
| CN112641127A (en) * | 2021-01-18 | 2021-04-13 | 河南中烟工业有限责任公司 | Control method for automatically adjusting thickness of tobacco sheet |
| CN113113561A (en) * | 2021-04-28 | 2021-07-13 | 北京卫蓝新能源科技有限公司 | Constant-pressure control method and constant-pressure adjusting device |
| CN113725397A (en) * | 2021-11-02 | 2021-11-30 | 天津中能锂业有限公司 | Fast response transfer multiplexing method |
| CN113878780A (en) * | 2021-10-08 | 2022-01-04 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
| WO2022227963A1 (en) * | 2021-04-27 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Lithium-supplementing device |
| WO2023029437A1 (en) * | 2021-09-06 | 2023-03-09 | 苏州清陶新能源科技有限公司 | Lithium replenishment method for negative electrode plate, and device |
-
2018
- 2018-04-10 CN CN201820503914.3U patent/CN208127310U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328242A (en) * | 2019-08-06 | 2019-10-15 | 河北银隆新能源有限公司 | Regulating device and roll gap adjustment method |
| CN112641127A (en) * | 2021-01-18 | 2021-04-13 | 河南中烟工业有限责任公司 | Control method for automatically adjusting thickness of tobacco sheet |
| WO2022227963A1 (en) * | 2021-04-27 | 2022-11-03 | 宁德时代新能源科技股份有限公司 | Lithium-supplementing device |
| JP7488911B2 (en) | 2021-04-27 | 2024-05-22 | 寧徳時代新能源科技股▲分▼有限公司 | Lithium supplementation equipment |
| CN113113561A (en) * | 2021-04-28 | 2021-07-13 | 北京卫蓝新能源科技有限公司 | Constant-pressure control method and constant-pressure adjusting device |
| WO2023029437A1 (en) * | 2021-09-06 | 2023-03-09 | 苏州清陶新能源科技有限公司 | Lithium replenishment method for negative electrode plate, and device |
| CN113878780A (en) * | 2021-10-08 | 2022-01-04 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
| CN113878780B (en) * | 2021-10-08 | 2024-01-26 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
| CN113725397A (en) * | 2021-11-02 | 2021-11-30 | 天津中能锂业有限公司 | Fast response transfer multiplexing method |
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