CN207839593U - The device that battery pole piece thickness rebounds after a kind of inhibition roll-in - Google Patents
The device that battery pole piece thickness rebounds after a kind of inhibition roll-in Download PDFInfo
- Publication number
- CN207839593U CN207839593U CN201820074579.XU CN201820074579U CN207839593U CN 207839593 U CN207839593 U CN 207839593U CN 201820074579 U CN201820074579 U CN 201820074579U CN 207839593 U CN207839593 U CN 207839593U
- Authority
- CN
- China
- Prior art keywords
- roll
- pole piece
- battery pole
- branch
- retarder
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses the devices that battery pole piece thickness after a kind of inhibition roll-in rebounds, including pedestal and the rack being fixedly arranged on pedestal and supporting rack, rack is equipped with first roll, second roll, and supporting rack is equipped with driving device, and first roll, second roll are connected with driving device respectively；Rack includes symmetrical, identical two branch of structure, one end of branch lower part is fixedly linked with pedestal, the other end in the middle part of hydraulic cylinder and branch by being connected, it is connected with branch top by wedge in the middle part of branch, branch top is equipped with first bearing seat, second bearing seat is equipped in the middle part of branch, first roll, second roll roll with first bearing seat, second bearing seat connect respectively.The utility model can make two rolls, and there are roll-in battery pole pieces in the state of linear resonance surface velocity difference, to inhibit battery pole piece thickness after roll-in to rebound.The utility model is simple in structure, does not increase the complexity of existing equipment and technique, is suitable for cell manufacturing techniques field.
Description
Technical field
The utility model belongs to battery manufacturing equipment technical field, is used for roll-in battery pole piece, specifically a kind of suppression
The device that battery pole piece thickness rebounds after roll-in processed.
Background technology
The compacted density and compactness of battery pole piece have large effect to battery performance, and in general, compactness is higher,
The capacity of battery can be made higher, and suitable compacted density can increase the discharge capacity of battery, reduce internal resistance, reduce polarization
Loss, extends the cycle life of battery, improves the utilization rate of lithium ion battery.
Currently, most of battery manufacturing process carries out the rolling of battery pole piece using rolling techniques, to control battery pole
The thickness of the compacted density and compactness of piece, the battery pole piece after roll process produces will appear instead over time
The phenomenon that bullet, this is that battery pole piece roll-in produces common phenomenon, and this phenomenon improves the control of battery pole piece consistency of thickness
Difficulty processed, while the rebound of thickness affects the compacted density of battery pole piece after battery pole piece roll-in, is unfavorable for improving battery
Energy density.
Then people increase the roll-in number of battery pole piece or increase the processing step of heating in the fabrication process, to reach
To the purpose for inhibiting the rebound of battery pole piece thickness, however two ways can all increase complex process degree and number of devices, waste
Working hour increases manufacturing cost.
Invention content
The purpose of this utility model be to provide it is a kind of inhibition roll-in after battery pole piece thickness rebound device, two can be made to roll
Roller is there are roll-in battery pole piece in the state of linear resonance surface velocity difference, to inhibit the rebound of battery pole piece thickness after roll-in, the device
The complexity of existing equipment is not increased.
To achieve the above object, used technical solution is as follows for the utility model：
The device that battery pole piece thickness rebounds after a kind of inhibition roll-in, it includes pedestal and the rack that is fixedly arranged on pedestal
And supporting rack, it is provided with first roll, second roll from top to bottom in rack, driving device is provided on supporting rack, first rolls
Roller, second roll are connected with the output end of driving device respectively；
The rack includes symmetrical, identical two branch of structure, and one end and the pedestal of branch lower part are fixedly linked, separately
By being connected in the middle part of hydraulic cylinder and branch, branch middle part is connected by wedge with branch top for one end, and branch top is provided with the
One bearing block, branch middle part are provided with second bearing seat, and the upper surface of the wedge is connected with first bearing seat, the following table of wedge
Face is connected with second bearing seat, and first roll is rolled with first bearing seat and connected, and second roll is rolled with second bearing seat and connected.
As restriction：The driving device includes first reducing motors and second reducing motors, and first reducing motors pass through
First shaft coupling is connected with first roll, and second reducing motors are connected by second shaft coupling with second roll, first roll
A diameter of d1, a diameter of d of second roll2, the output rotating speed of first reducing motors is r1, the output rotating speed of second reducing motors
For r2, and haveValue range be [0.9,1) ∪ (1,1.1].
It is limited as second：The driving device is third motor, and the third motor is distinguished by the first retarder
The second retarder and third retarder are connected, the second retarder is connected by third shaft coupling with first roll, third retarder
It is connected with second roll by the 4th shaft coupling, the reduction ratio of the first retarder is X, and the reduction ratio of the second retarder is X1, the
The reduction ratio of three retarders is X2, a diameter of D of the first roll1, a diameter of D of second roll2, and haveTake
Value range is [0.9,1) ∪ (1,1.1].
As further limiting：Motor and third motor used by the first reducing motors, second reducing motors
For synchronous motor/servo motor/variable-frequency motor.
The utility model due to the adoption of the above technical solution, compared with prior art, acquired technological progress
It is：
(1) the utility model does not increase the complexity of existing equipment, while not needing repeat-rolling and need not heat yet
Technique, device structure is simple, and method is succinct, is easily achieved.
(2) the utility model, can by making two rolls there are roll-in battery pole piece in the state of linear resonance surface velocity difference
Realize that the effect that battery pole piece thickness rebounds after inhibiting roll-in, linear differential can increase battery pole piece in roll-in transmission process
Frictional force, and frictional force is decomposed into two power parallel and vertical with battery pole piece transporting direction, the friction in parallel direction
Power can increase the extension of battery pole piece, and the frictional force in vertical direction can increase the pressure to battery pole piece, in two frictional force
While effect under, there is the transverse motion for being easier to fill gap in the battery material on battery pole piece surface layer, i.e., in frictional force
Under the action of, battery material is more easily ironed in the form of plugging the gap, so battery pole piece at this time is not easy to occur instead
Bullet；
(3) the utility model drive different retarders to respectively drive the methods of two rolls by using a motor can
Realization makes two rolls, and there are the purposes of linear resonance surface velocity difference, also can respectively drive two rolls by using two decelerating motors
Method realization make two rolls there are the purposes of linear resonance surface velocity difference；
(4) battery pole piece thickness rebound rate can be reduced to 0.031 by the utility model, and the non-defective unit of battery is greatly improved
Rate extends the average life of battery.
The utility model is suitable for cell manufacturing techniques field.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.
In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is two roller surface linear velocity ratios and battery pole piece thickness rebound rate graph of relation in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 4 is two roller surface linear velocity ratios and battery pole piece thickness rebound rate graph of relation in the embodiment of the present invention 2.
In figure：1, pedestal, 2, rack, 3, supporting rack, 4, first roll, 5, second roll, 61, first reducing motors, 62,
Second reducing motors, 6, third motor, 71, first shaft coupling, 72, second shaft coupling, 73, third shaft coupling, the 74, the 4th shaft coupling
Device, the 75, first retarder, the 76, second retarder, 77, third retarder, 8, hydraulic cylinder, 9, wedge.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing.It should be appreciated that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
The device that battery pole piece thickness rebounds after a kind of inhibition roll-in of embodiment 1
As shown in Figure 1, the present embodiment includes pedestal 1 and the rack being fixedly arranged on pedestal 12 and supporting rack 3, in rack 2
It is provided with first roll 4, second roll 5 from top to bottom, first reducing motors 61 and second are provided with from top to bottom on supporting rack 3
Decelerating motor 62, first reducing motors 61 are connected by first shaft coupling 71 with first roll 4, and second reducing motors 62 pass through
Two shaft couplings 72 are connected with second roll 5, a diameter of d of first roll1, a diameter of d of second roll 52, first reducing motors
61 output rotating speed is r1, the output rotating speed of second reducing motors 62 is r2, and haveValue range be [0.9,1) ∪
(1,1.1]。
Rack 2 includes symmetrical, identical two branch of structure, and one end and the pedestal 1 of branch lower part are fixedly linked, are another
By being connected in the middle part of hydraulic cylinder 8 and branch, branch middle part is connected by wedge 9 with branch top at end, and branch top is provided with the
One bearing block, branch middle part are provided with second bearing seat, and the upper surface of wedge 9 is connected with first bearing seat, the lower surface of wedge 9
It is connected with second bearing seat, first roll 4 is rolled with first bearing seat and connected, and second roll 5 is rolled with second bearing seat and connected.
Motor used by first reducing motors 61 and second reducing motors 62 can be synchronous motor/servo motor/change
Frequency motor.
Inhibit the method for battery pole piece thickness rebound after roll-in using the present embodiment, including the following steps carried out successively：
One, the initial thrust of two hydraulic cylinders 8 is set as identical value；
Two, the thickness of two wedges 9 is adjusted until the roll gap equivalent width of first roll 4 and second roll 5 in the horizontal direction；
Three, the output rotating speed of first reducing motors 61 is set as r1, second reducing motors 62 output rotating speed be r2, and haveWherein 0.9≤i≤1.1, i ≠ 1；
Four, one end of battery pole piece to be rolled is placed between first roll 4 and second roll 5；
Five, first reducing motors 61 and second reducing motors 62 are opened, start to roll, timing detection during the rolling process is rolled
Whether the battery pole piece after system reaches requirement, and adjusts the thickness of two wedges 9 in real time to ensure first roll 4 and second roll 5
Between roll gap equivalent width in the horizontal direction and reach preset value.
In the present embodiment, the diameter of first roll 4 and second roll 5 is 750mm, sets roller on the basis of first roll 4,
The output rotating speed r of first reducing motors 611Rotating speed for 21.22066r/min, second reducing motors 62 is r2, r2Value such as table 1
Shown in table 2.
In table 1 for two roller surface linear velocity ratios [0.9,1) between value when, pole piece rebound rate statistical result
In table 2 for two roller surface linear velocity ratios (1,1.1] between value when, pole piece rebound rate statistical result
In upper table, r1And r2Unit be all r/min, data in two tables, each test interval is 48 hours.
As shown in Fig. 2, for obtained according to the data in Tables 1 and 2 first roll 4,5 linear resonance surface velocity ratio of second roll
With battery pole piece thickness rebound rate graph of relation, abscissa indicates first roll 4 and 5 linear resonance surface velocity ratio of second roll, indulges
Coordinate representation battery pole piece thickness rebound rate, it can be seen from the figure that the value of i, when between 0.9 to 0.92, battery pole piece is thick
Degree rebound rate is gradually reduced with the increase of i values, the value of i when between 0.92 to 1, battery pole piece thickness rebound rate with
The increase of i values is gradually increasing, the value of i when between 1 to 1.08, battery pole piece thickness rebound rate with i values increase
It is gradually reduced, when between 1.08 to 1.1, battery pole piece thickness rebound rate is gradually increasing the value of i with the increase of i values.
Certainly, the output rotating speed that first reducing motors 61 also can be changed, to drive the rotation speed change of first roll 4,
Can change the diameter of two rolls as needed, the two diameter differ also can, as long as making the table of first roll 4 and second roll 5
The value of the ratio between upper thread speed is fallen in [0.9,1) ∪ (1,1.1] range.
The device that battery pole piece thickness rebounds after a kind of inhibition roll-in of embodiment 2
As shown in Fig. 2, the present embodiment includes pedestal 1 and the rack being fixedly arranged on pedestal 12 and supporting rack 3, in rack 2
It is provided with first roll 4, second roll 5 from top to bottom, third motor 6 is provided on supporting rack 3, third motor 6 passes through first
Retarder 75 is separately connected the second retarder 76 and third retarder 77, and the second retarder 76 passes through third shaft coupling 73 and first
Roll 4 is connected, and third retarder 77 is connected by the 4th shaft coupling 74 with second roll 5；
In the present embodiment the structure of rack 2 and rack 2 and first roll 4, the connection type of second roll 5 with implementation
Example 1 is identical.
A diameter of D of first roll 41, a diameter of D of second roll 52, the reduction ratio of the first retarder 75 is X, and second subtracts
The reduction ratio of fast device 76 is X1, the reduction ratio of third retarder 77 is X2, and haveValue range be [0.9,1) ∪
(1,1.1]。
In the present embodiment, synchronous motor/servo motor/variable-frequency motor can be used in third motor 6.
The operation principle of the present embodiment：It needs the initial thrust by two hydraulic cylinders 8 to be set as identical value before rolling, and adjusts
The thickness of two wedges 9 is saved until the roll gap equivalent width of first roll 4 and second roll 5 in the horizontal direction；Timing detection rolling
Whether battery pole piece afterwards reaches requirement, and adjust in real time the thickness of two wedges 9 with ensure first roll 4 and second roll 5 it
Between roll gap equivalent width in the horizontal direction and reach preset value.
In the present embodiment, the diameter of first roll 4 and second roll 5 is 750mm, and the rotating speed of third motor 6 is
The reduction ratio of 1500r/min, the roller on the basis of second roll 5, the first retarder 75 are 1, the reduction ratio X of third retarder 772
It is 70.68583, the reduction ratio X of the second retarder 761Value it is as shown in Table 3 and Table 4.
In table 3 for two roller surface linear velocity ratios [0.9,1) between value when, pole piece rebound rate statistical result
In table 4 for two roller surface linear velocity ratios (1,1.1] between value when, pole piece rebound rate statistical result
Data in above-mentioned two table, each test interval are 48 hours.
As shown in figure 4, for obtained according to the data in table 3 and table 4 first roll 4,5 linear resonance surface velocity ratio of second roll
With battery pole piece thickness rebound rate graph of relation, abscissa indicates first roll 4 and 5 linear resonance surface velocity ratio of second roll, indulges
Coordinate representation battery pole piece thickness rebound rate,Value when between 0.9 to 0.92, battery pole piece thickness rebound rate with
ItThe increase of value is gradually reduced, value when between 0.92 to 1, battery pole piece thickness rebound rate with
The increase of value is gradually increasing, value when between 1 to 1.08, battery pole piece thickness rebound rate withThe increase of value
Be gradually reduced, value when between 1.08 to 1.1, battery pole piece thickness rebound rate withOn the increase of value is gradual
It rises.
Certainly, the reduction ratio that third retarder 77 also can be changed, can also change the diameter of two rolls, the two is straight as needed
Diameter differ also can, as long as make the value of the ratio between linear resonance surface velocity of first roll 4 and second roll 5 fall [0.9,1) ∪ (1,
1.1] in range.
Claims (5)
1. the device that battery pole piece thickness rebounds after a kind of inhibition roll-in, it is characterised in that：It includes pedestal and is fixedly arranged on bottom
Rack on seat and supporting rack are provided with first roll, second roll in rack from top to bottom, and driving dress is provided on supporting rack
It sets, first roll, second roll are connected with the output end of driving device respectively；
The rack includes symmetrical, identical two branch of structure, and one end and the pedestal of branch lower part be fixedly linked, the other end
By being connected in the middle part of hydraulic cylinder and branch, branch middle part is connected by wedge with branch top, and branch top is provided with first axle
Bearing is provided with second bearing seat in the middle part of branch, and the upper surface of the wedge is connected with first bearing seat, the lower surface of wedge and
Second bearing seat is connected, and first roll is rolled with first bearing seat and connected, and second roll is rolled with second bearing seat and connected.
2. the device that battery pole piece thickness rebounds after a kind of inhibition roll-in according to claim 1, it is characterised in that：It is described
Driving device includes first reducing motors and second reducing motors, and first reducing motors pass through first shaft coupling and first roll phase
Even, second reducing motors are connected by second shaft coupling with second roll, a diameter of d of first roll1, the diameter of second roll
For d2, the output rotating speed of first reducing motors is r1, the output rotating speed of second reducing motors is r2, and haveValue model
It encloses and is [0.9,1) ∪ (1,1.1].
3. the device that battery pole piece thickness rebounds after a kind of inhibition roll-in according to claim 1, it is characterised in that：It is described
Driving device is third motor, and the third motor is separately connected the second retarder and third retarder by the first retarder,
Second retarder is connected by third shaft coupling with first roll, and third retarder passes through the 4th shaft coupling and second roll phase
Even, the reduction ratio of the first retarder is X, and the reduction ratio of the second retarder is X1, the reduction ratio of third retarder is X2, described
A diameter of D of one roll1, a diameter of D of second roll2, and haveValue range be [0.9,1) ∪ (1,1.1].
4. the device that battery pole piece thickness rebounds after a kind of inhibition roll-in according to claim 2, it is characterised in that：It is described
Motor used in first reducing motors, second reducing motors is synchronous motor/servo motor/variable-frequency motor.
5. the device that battery pole piece thickness rebounds after a kind of inhibition roll-in according to claim 3, it is characterised in that：It is described
Third motor is synchronous motor/servo motor/variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074579.XU CN207839593U (en) | 2018-01-17 | 2018-01-17 | The device that battery pole piece thickness rebounds after a kind of inhibition roll-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074579.XU CN207839593U (en) | 2018-01-17 | 2018-01-17 | The device that battery pole piece thickness rebounds after a kind of inhibition roll-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207839593U true CN207839593U (en) | 2018-09-11 |
Family
ID=63414910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074579.XU Withdrawn - After Issue CN207839593U (en) | 2018-01-17 | 2018-01-17 | The device that battery pole piece thickness rebounds after a kind of inhibition roll-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207839593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999537A (en) * | 2018-01-17 | 2018-05-08 | 般若涅利（北京）装备技术有限公司 | The device and corresponding method that battery pole piece thickness rebounds after a kind of suppression roll-in |
-
2018
- 2018-01-17 CN CN201820074579.XU patent/CN207839593U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999537A (en) * | 2018-01-17 | 2018-05-08 | 般若涅利（北京）装备技术有限公司 | The device and corresponding method that battery pole piece thickness rebounds after a kind of suppression roll-in |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107999537A (en) | The device and corresponding method that battery pole piece thickness rebounds after a kind of suppression roll-in | |
| CN110148708B (en) | Negative plate and lithium ion battery | |
| CN103934285B (en) | Battery pole piece pressure rolling method and multistage roller mill thereof | |
| CN207839593U (en) | The device that battery pole piece thickness rebounds after a kind of inhibition roll-in | |
| CN110752345A (en) | Pole piece, preparation method thereof and lithium ion battery | |
| CN109711101B (en) | Method for solving mechanical energy parameters of same-speed different-diameter snake-shaped rolling of thick steel plate | |
| CN106735184A (en) | A kind of B high4The high efficiency preparation method of C content aluminium base neutron absorber material sheet material | |
| CN102847859A (en) | Rolling method of lithium ion battery pole piece | |
| CN111477834B (en) | Battery pole piece rolling device and method | |
| CN203862696U (en) | Battery pole piece multistage rolling machine | |
| CN109585914B (en) | Preparation method of oxide solid electrolyte sheet and solid battery prepared by adopting same | |
| CN108110220B (en) | Preparation method of high-load high-compaction-density lithium ion battery pole piece | |
| CN115763681A (en) | Method and equipment for supplementing lithium to negative pole piece | |
| CN103978218B (en) | A kind of method preparing high flatness tungsten nickel iron alloy plate | |
| CN212597924U (en) | Battery pole piece rolling equipment | |
| CN210349967U (en) | Battery pole piece and lithium ion battery comprising same | |
| CN204170777U (en) | A kind of damping roller type vertical mill machine | |
| CN108788041A (en) | Fan-shaped section roll array structure and application method are used under a kind of weight of continuous casting and solidifying end | |
| CN106753450B (en) | A kind of top dress coke oven coal-charging compaction rod and debulking methods | |
| CN210884544U (en) | Wet diaphragm tension partition mechanism | |
| CN113042526A (en) | Differential thickness rolling method for medium plate | |
| CN201758154U (en) | Plate coating device | |
| CN107068968A (en) | A kind of electrodes of lithium-ion batteries rolling (rolling) goes gauffer equipment | |
| CN102825190A (en) | Method for forging and compacting thick tube plate of nuclear power equipment | |
| CN113889609A (en) | Nitrogen-doped silicon oxide/zinc oxide/graphite/carbon composite negative electrode material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180911 Effective date of abandoning: 20230620 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180911 Effective date of abandoning: 20230620 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |