CN209477397U - A kind of lithium battery processing pole piece cutter device - Google Patents
A kind of lithium battery processing pole piece cutter device Download PDFInfo
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- CN209477397U CN209477397U CN201821192498.6U CN201821192498U CN209477397U CN 209477397 U CN209477397 U CN 209477397U CN 201821192498 U CN201821192498 U CN 201821192498U CN 209477397 U CN209477397 U CN 209477397U
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- pole piece
- lithium battery
- rubber rollers
- pilot hole
- cutting bed
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Abstract
The utility model discloses a kind of lithium battery processing pole piece cutter devices, including cutting bed, first connection strap, first rubber rollers, first rotating shaft, pole piece, first support bar, camber fixed plate, second connection strap, second shaft, second rubber rollers, first rotary electric machine, second rotary electric machine, industrial dust collector, connecting tube, dust bin, flat ring, row brush, ring-like cavity, air suction opening, support plate, second support bar, air driven pump, pneumatic cylinder, cutter, first pilot hole, pole piece hold-down mechanism, fixed block, compressor arm, bottom plate, spring, circular hole, second pilot hole and feed slot.The utility model is structurally reasonable, when pole piece is driven by the first rubber rollers and several second rubber rollers, since several second rubber rollers form circular arc type structure, drives several second rubber rollers to driving at the top of pole piece by the second rotary electric machine, power when pole piece movement can be increased.
Description
Technical field
The utility model relates to a kind of pole piece cutter device, specially a kind of lithium battery processing pole piece cutter device belongs to
In lithium battery processing unit (plant) applied technical field.
Background technique
Lithium battery during processing, is generally required and is coated, and carries out the production of pole piece；It needs after pole piece production to pole
Piece is dried and is compacted, and is then carried out the cutting of pole piece, is reduced the volume of pole piece, carry out stacking for pole piece.
It when pole piece is cut, needs to be driven by extraneous roll shaft, when roll shaft drives pole piece mobile, to pole piece
Drive may be insufficient, it is possible that slipping phenomenon；When carrying out pole piece cutting, dust, the dust of generation may be generated
It may cover on pole piece, may bring inconvenience to the following process of pole piece；When carrying out the cutting of pole piece, pole piece may
Lack clamping, pole piece is less concentrated by the impact force of cutter, and the notch of pole piece is more coarse, there may be a large amount of hair
Thorn.Therefore, a kind of lithium battery processing pole piece cutter device is proposed regarding to the issue above.
Summary of the invention
The purpose of this utility model is that provide a kind of lithium battery processing to solve the above-mentioned problems is cut with pole piece
Device.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of lithium battery processing pole piece cutting dress
It sets, including cutting bed, the cutting bed two sides are connected with the first connection strap, and first connection strap end passes through first rotating shaft
The first rubber rollers are rotatably connected to, are laid with pole piece, the first connection strap table at the top of first rubber roll surface and cutting bed
Face is fixedly installed with the first rotary electric machine, and the first rotary electric machine output end and first rotating shaft one end are socketed, the cutting bed
Top is connected with first support bar, and the first support bar surface is connected with camber fixed plate, and the camber fixed plate inside is solid
Several the second connection straps are connected to, second connection strap end is rotatably connected to the second rubber rollers, and by the second shaft
Two rubber rollers are contacted with pole piece, and second connection strap surface is fixedly installed with the second rotary electric machine, second rotation
Motor output end and second shaft one end are socketed；
The cutting bed bottom is chimeric to be equipped with industrial dust collector, and the industrial dust collector output end is connected to connecting tube, institute
It states connection pipe end and is connected with dust bin, and dust bin is fitted into and is mounted on cutting bed top surface；
The first support bar top is connected with support plate, and the support plate top surface is connected with second support bar, institute
It states second support bar top and is fixedly installed with air driven pump, the air driven pump bottom is connected with pneumatic cylinder, and the pneumatic cylinder is through branch
Fagging, and pneumatic cylinder and support plate are affixed, pneumatic cylinder output bottom end is connected with pole piece hold-down mechanism, the pole piece compacting machine
Structure is fixedly installed with cutter, and the support plate surface is provided with the first pilot hole.
Preferably, it is vertically arranged with first support bar surface at the top of the cutting bed with support plate.
Preferably, several described second rubber rollers are evenly distributed on cutting bed side, and several the second rubber rollers shapes
At circular arc type structure.
Preferably, the dust bin and camber fixed plate are located at cutter two sides, and dust bin is by flat ring and two
Row brush is affixed to be formed, and two row brushes are located at flat ring side, is provided with ring-like cavity inside the flat ring-side wall, in the flat ring
Wall is provided with air suction opening, the ring-like cavity with connect pipe end and air suction opening is connected to.
Preferably, the pole piece runs through flat ring, and connects respectively at the bristle of two row brushes at the top and bottom of pole piece
Touching.
Preferably, the cutting bed top surface is provided with feed slot, and feed slot position is in cutter bottom.
Preferably, the pole piece hold-down mechanism is made of fixed block, compressor arm, bottom plate and spring, at the top of the fixed block
Exported respectively with pneumatic cylinder with fixed block bottom affixed at the top of bottom end and cutter, the fixed block two sides are provided with circular hole and the
Two pilot holes, the circular hole and the second pilot hole are located at the top and bottom of fixed block, and circular hole and the connection of the second pilot hole,
The compressor arm is slidably connected with the second pilot hole, and the spring is located inside circular hole, and both ends of the spring respectively with fixed block and
Compressor arm surface is affixed, and the compressor arm bottom end and bottom plate are affixed.
Preferably, the compressor arm runs through the first pilot hole, and compressor arm is vertically arranged with bottom plate.
Preferably, the bottom plate number is two, and two bottom plates are located at cutter two sides of the bottom.
Preferably, the aperture of first pilot hole is identical with the aperture of the second pilot hole, and the aperture of the first pilot hole
Less than the aperture of circular hole.
The beneficial effects of the utility model are:
1, the apparatus structure is reasonable, when pole piece is driven by the first rubber rollers and several second rubber rollers, due to
Several second rubber rollers form circular arc type structure, drive several second rubber rollers at the top of pole piece by the second rotary electric machine
The phenomenon that being driven, can increasing power when pole piece movement, pole piece is avoided to be short of power when moving or pole piece occur
It skids；
2, by industrial dust collector, connecting tube and dust bin, at the top of the pole piece after cutting and bottom can be removed
Dirt makes dust loosen or fall off by row brush to cleaning at the top and bottom of pole piece, is then carried out by air suction opening to dust
It absorbs, the cleaning effect of pole piece is preferable；
3, cutter can be driven to cut pole piece by pneumatic cylinder and air driven pump, in cutting, pneumatic cylinder is simultaneously
Pole piece hold-down mechanism can be driven to be moved, compress the two sides of pole piece cut place, what effective reduction pole piece was subject to rushes
Power is hit, the planarization of pole piece notch is improved, improves cutting effect.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the portion A partial enlargement structural representation shown in the utility model Fig. 1；
Fig. 3 is the portion B partial enlargement structural representation shown in the utility model Fig. 1；
Fig. 4 is the first rotary electric machine of the utility model and the first rubber roller structure schematic diagram；
Fig. 5 is the second rotary electric machine of the utility model and the second rubber roller structure schematic diagram；
Fig. 6 is the utility model dust bin and pole piece structure schematic diagram；
Fig. 7 is the utility model fixed block top structure schematic diagram.
In figure: 1, cutting bed, the 2, first connection strap, the 3, first rubber rollers, 4, first rotating shaft, 5, pole piece, the 6, first support
Bar, 7, camber fixed plate, the 8, second connection strap, the 9, second shaft, the 10, second rubber rollers, the 11, first rotary electric machine, 12, second
Rotary electric machine, 13, industrial dust collector, 14, connecting tube, 15, dust bin, 1501, flat ring, 1502, row brush, 16, ring-like cavity,
17, air suction opening, 18, support plate, 19, second support bar, 20, air driven pump, 21, pneumatic cylinder, 22, cutter, the 23, first guiding
Hole, 24, pole piece hold-down mechanism, 2401, fixed block, 2402, compressor arm, 2403, bottom plate, 2404, spring, 25, circular hole, 26,
Two pilot holes, 27, feed slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-7, a kind of lithium battery processing pole piece cutter device, including cutting bed 1, the cutting bed 1
Two sides are connected with the first connection strap 2, and 2 end of the first connection strap is rotatably connected to the first rubber rollers by first rotating shaft 4
3, pole piece 5 is laid at the top of 3 surface of the first rubber rollers and cutting bed 1,2 surface of the first connection strap is fixedly installed with first
Rotary electric machine 11,11 output end of the first rotary electric machine and 4 one end of first rotating shaft are socketed, and are connected at the top of the cutting bed 1
First support bar 6,6 surface of first support bar is connected with camber fixed plate 7, if being connected on the inside of the camber fixed plate 7
Dry the second connection strap 8,8 end of the second connection strap is rotatably connected to the second rubber rollers 10, and second by the second shaft 9
Rubber rollers 10 are contacted with 5 surface of pole piece, can be pushed to pole piece 5 when the second rubber rollers 10 rotate by friction, and pole piece 5 is increased
The power moved at the top of cutting bed 1,8 surface of the second connection strap are fixedly installed with the second rotary electric machine 12, and described second
12 output end of rotary electric machine and 9 one end of the second shaft are socketed；
1 bottom of cutting bed is chimeric to be equipped with industrial dust collector 13,13 output end of the industrial dust collector connection connection
Pipe 14,14 end of connecting tube is connected with dust bin 15, and dust bin 15 is fitted into and is mounted on 1 top surface of cutting bed, passes through
Dust bin 15 carries out the dust suction at the top and bottom of pole piece；
6 top of first support bar is connected with support plate 18, and 18 top surface of support plate is connected with the second support
Bar 19,19 top of second support bar are fixedly installed with air driven pump 20, and 20 bottom of air driven pump is connected with pneumatic cylinder 21, gas
20 pairs of pneumatic cylinders 21 of dynamic pump drive, and the pneumatic cylinder 21 runs through support plate 18, and pneumatic cylinder 21 and support plate 18 are affixed, branch
Fagging 18 is supported fixation to pneumatic cylinder 21, and the pneumatic cylinder 21 exports bottom end and is connected with pole piece hold-down mechanism 24, the pole
Piece hold-down mechanism 24 is fixedly installed with cutter 22, and 18 surface of support plate is provided with the first pilot hole 23.
1 top of cutting bed and support plate 18 are vertically arranged with 6 surface of first support bar, and first support bar 6 is branch
Fagging 18 provides support；Several described second rubber rollers 10 are evenly distributed on 1 side of cutting bed, and several second rubber rollers
10 form circular arc type structure, can be pushed to pole piece 5 when the second rubber rollers 10 rotate by friction, increase pole piece 5 and are cutting
The power moved at the top of platform 1；The dust bin 15 and camber fixed plate 7 are located at 22 two sides of cutter, and dust bin 15 by
Flat ring 1501 and two row brushes 1502 are affixed forms, two row brushes 1502 are located at flat 1501 side of ring, the flat ring 1501
Interior is provided with ring-like cavity 16, and flat 1501 inner wall of ring is provided with air suction opening 17, the ring-like cavity 16 and connecting tube 14
End is connected to air suction opening 17, by row brush 1502 to cleaning at the top and bottom of pole piece 5, so that dust is loosened or is fallen off, so
Dust is absorbed by air suction opening 17 afterwards；The pole piece 5 runs through flat ring 1501, and the top and bottom of pole piece 5 are respectively with two
It is contacted at the bristle of a row brush 1502, convenient for removing the dust of 5 top and bottom of pole piece；1 top surface of cutting bed
It is provided with feed slot 27, and feed slot 27 is located at 22 bottom of cutter, when cutter 22 are cut, feed slot 27 is cutter 22
The space of movement is provided；The pole piece hold-down mechanism 24 is by fixed block 2401,2404 structure of compressor arm 2402, bottom plate 2403 and spring
At 2401 top of fixed block and 2401 bottom of fixed block export at the top of bottom end and cutter 22 admittedly with pneumatic cylinder 21 respectively
It connects, 2401 two sides of fixed block are provided with circular hole 25 and the second pilot hole 26, the circular hole 25 and the second pilot hole 26 difference
Positioned at 2401 top and bottom of fixed block, and circular hole 25 is connected to the second pilot hole 26, the compressor arm 2402 and the second guiding
Hole 26 is slidably connected, and the spring 2404 is located inside circular hole 25, and 2404 both ends of spring respectively with fixed block 2401 and compress
2402 surface of bar is affixed, and 2402 bottom end of compressor arm and bottom plate 2403 are affixed, and in cutting, pneumatic cylinder 21 drives pole piece to compress
Mechanism 24 is moved, and is compressed to the two sides of 5 cut place of pole piece, and the effective impact force for reducing pole piece 5 and being subject to improves
The planarization of 5 notch of pole piece, improves cutting effect；The compressor arm 2402 runs through the first pilot hole 23, and compressor arm 2402
It is vertically arranged with bottom plate 2403, the first pilot hole 23 provides guiding for the movement of compressor arm 2402；2403 number of bottom plate is two
It is a, and two bottom plates 2403 are located at 22 two sides of the bottom of cutter, bottom plate 2403 presss from both sides pole piece 5 for compressing pole piece 5
It holds；The aperture of first pilot hole 23 is identical with the aperture of the second pilot hole 26, and the aperture of the first pilot hole 23 is less than circle
The aperture in hole 25, circular hole 25 are that spring 2404 provides fixed space, and spring 2404 is avoided to enter in the second pilot hole 26.
When the utility model is used, the electric elements occurred in the application external connection power supply and control when in use
Switch drives the first rubber rollers 3 to be rotated clockwise and the respectively by the first rotary electric machine 11 and the second rotary electric machine 12
Two rubber rollers 10 are rotated counterclockwise, and pole piece 5 is driven to be moved at the top of cutting bed 1；When carrying out the cutting of pole piece 5,
Pneumatic cylinder 21 carries out driving by air driven pump 20 and pole piece hold-down mechanism 24 and cutter 22 is driven to be moved towards 1 direction of cutting bed
Dynamic, in moving process, bottom plate 2403 is contacted at the top of pole piece 5 first, and pole piece hold-down mechanism 24 and cutter 22 continue
It is mobile, spring 2404 is compressed, compressed spring 2404 makes bottom plate 2403 compress pole piece 5, cooperates cutting bed 1 to pole piece
5 are clamped, and cutter 22 continue to move to cut pole piece 5, and in cutting process, 5 cut place two sides of pole piece pass through bottom
It is compressed at the top of plate 2403 and cutting bed 1, the effective impact force for reducing pole piece 5 and being subject to improves the planarization of 5 notch of pole piece；
Pole piece 5 after cutting is moved by the promotion of uncut pole piece 5, and the pole piece 5 after cutting is worn from dust bin 15
While mistake, dust can be made to loosen or fall off, industrial dust collector to cleaning at the top and bottom of pole piece 5 by row brush 1502
13 extract the gas inside ring-like cavity 16 by connecting tube 14, form negative pressure, by air suction opening 17 to 5 top and bottom of pole piece
Dust suction is carried out, pole piece 5 is cleaned.
First rotary electric machine 11 is sold using Dongguan City Ou Heng mechanical & electronic equipment corporation, Ltd, Alibaba
5RK150GU-CMF/5GU20K model speed regulating motor and its relevant mating power supply and circuit.
Second rotary electric machine 12 is sold using Bao Gemate Industrial Equipment Co., Ltd, Suzhou City, Alibaba
5RK6GN-A model speed regulating motor and its relevant mating power supply and circuit.
The YX-2200Y type that industrial dust collector 13 is sold using Jiangsu full blast Environmental Protection Technology Co., Ltd, Alibaba
Number industrial dust collector and its relevant mating power supply and circuit.
66605J-344 model pneumatic diaphragm pump that air driven pump 20 is sold using flagship store, ARO official, Alibaba and
Its relevant mating power supply and circuit.
The SC40*100 model aluminium alloy that pneumatic cylinder 21 is sold using Yueqing City De Liang pneumatic element factory, Alibaba
Cylinder and its relevant mating power supply and circuit.
It is related to circuit and electronic component and module is the prior art, those skilled in the art may be implemented completely,
Without superfluous words, the content of the utility model protection is not related to the improvement for software and method yet.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of lithium battery processing pole piece cutter device, including cutting bed (1), it is characterised in that: cutting bed (1) two sides
It is connected with the first connection strap (2), the first connection strap (2) end is rotatably connected to the first rubber by first rotating shaft (4)
Pole piece (5) are laid at the top of roller (3), the first rubber rollers (3) surface and cutting bed (1), the first connection strap (2) surface is solid
Dingan County is equipped with the first rotary electric machine (11), and the first rotary electric machine (11) output end and first rotating shaft (4) one end are socketed, described
It is connected with first support bar (6) at the top of cutting bed (1), first support bar (6) surface is connected with camber fixed plate (7), institute
It states and is connected with several the second connection straps (8) on the inside of camber fixed plate (7), the second connection strap (8) end passes through second turn
Axis (9) is rotatably connected to the second rubber rollers (10), and the second rubber rollers (10) are contacted with pole piece (5) surface, second connection
Item (8) surface is fixedly installed with the second rotary electric machine (12), the second rotary electric machine (12) output end and the second shaft (9) one
End cap connects；
Cutting bed (1) bottom is chimeric to be equipped with industrial dust collector (13), and industrial dust collector (13) the output end connection connects
It takes over (14), connecting tube (14) end is connected with dust bin (15), and chimeric be mounted on cutting bed (1) of dust bin (15) is pushed up
Portion surface；
First support bar (6) top is connected with support plate (18), and support plate (18) top surface is connected with second
Strut (19), second support bar (19) top are fixedly installed with air driven pump (20), and air driven pump (20) bottom is connected with
Pneumatic cylinder (21), the pneumatic cylinder (21) runs through support plate (18), and pneumatic cylinder (21) and support plate (18) are affixed, the air pressure
Cylinder (21) output bottom end is connected with pole piece hold-down mechanism (24), and the pole piece hold-down mechanism (24) is fixedly installed with cutter
(22), support plate (18) surface is provided with the first pilot hole (23).
2. a kind of lithium battery processing pole piece cutter device according to claim 1, it is characterised in that: the cutting bed
(1) top and support plate (18) are vertically arranged with first support bar (6) surface.
3. a kind of lithium battery processing pole piece cutter device according to claim 1, it is characterised in that: several described the
Two rubber rollers (10) are evenly distributed on cutting bed (1) side, and several second rubber rollers (10) form circular arc type structure.
4. a kind of lithium battery processing pole piece cutter device according to claim 1, it is characterised in that: the dust bin
(15) and camber fixed plate (7) is located at cutter (22) two sides, and dust bin (15) is by flat ring (1501) and two row brushes
(1502) affixed to form, two row brushes (1502) are located at flat ring (1501) side, and flat ring (1501) interior is opened
Have ring-like cavity (16), flat ring (1501) inner wall is provided with air suction opening (17), the ring-like cavity (16) and connecting tube (14)
End is connected to air suction opening (17).
5. a kind of lithium battery processing pole piece cutter device according to claim 4, it is characterised in that: the pole piece (5)
It is contacted respectively at the bristle of two row brushes (1502) through flat ring (1501), and at the top and bottom of pole piece (5).
6. a kind of lithium battery processing pole piece cutter device according to claim 1, it is characterised in that: the cutting bed
(1) top surface is provided with feed slot (27), and feed slot (27) is located at cutter (22) bottom.
7. a kind of lithium battery processing pole piece cutter device according to claim 1, it is characterised in that: the pole piece compresses
Mechanism (24) is made of fixed block (2401), compressor arm (2402), bottom plate (2403) and spring (2404), the fixed block
(2401) top and fixed block (2401) bottom are exported with pneumatic cylinder (21) affixed at the top of bottom end and cutter (22) respectively, described
Fixed block (2401) two sides are provided with circular hole (25) and the second pilot hole (26), the circular hole (25) and the second pilot hole (26) point
Wei Yu not be at the top and bottom of fixed block (2401), and circular hole (25) is connected to the second pilot hole (26), the compressor arm (2402)
It is slidably connected with the second pilot hole (26), it is internal that the spring (2404) is located at circular hole (25), and spring (2404) both ends are distinguished
Affixed with fixed block (2401) and compressor arm (2402) surface, compressor arm (2402) bottom end and bottom plate (2403) are affixed.
8. a kind of lithium battery processing pole piece cutter device according to claim 7, it is characterised in that: the compressor arm
(2402) run through the first pilot hole (23), and compressor arm (2402) is vertically arranged with bottom plate (2403).
9. a kind of lithium battery processing pole piece cutter device according to claim 7, it is characterised in that: the bottom plate
(2403) number is two, and two bottom plates (2403) are located at cutter (22) two sides of the bottom.
10. a kind of lithium battery processing pole piece cutter device according to claim 1 or claim 7, it is characterised in that: described first
The aperture of pilot hole (23) is identical with the aperture of the second pilot hole (26), and the aperture of the first pilot hole (23) is less than circular hole (25)
Aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192498.6U CN209477397U (en) | 2018-07-25 | 2018-07-25 | A kind of lithium battery processing pole piece cutter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192498.6U CN209477397U (en) | 2018-07-25 | 2018-07-25 | A kind of lithium battery processing pole piece cutter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209477397U true CN209477397U (en) | 2019-10-11 |
Family
ID=68110682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821192498.6U Active CN209477397U (en) | 2018-07-25 | 2018-07-25 | A kind of lithium battery processing pole piece cutter device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209477397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788271A (en) * | 2018-07-25 | 2018-11-13 | 江苏华富储能新技术股份有限公司 | A kind of lithium battery processing pole piece cutter device |
| CN110788391A (en) * | 2019-10-21 | 2020-02-14 | 大同新成新材料股份有限公司 | Intelligent slicing device for lithium battery processing pole piece |
| CN114211036A (en) * | 2021-11-09 | 2022-03-22 | 中国民用航空飞行学院 | Processing device and processing method for lithium battery pole piece |
-
2018
- 2018-07-25 CN CN201821192498.6U patent/CN209477397U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788271A (en) * | 2018-07-25 | 2018-11-13 | 江苏华富储能新技术股份有限公司 | A kind of lithium battery processing pole piece cutter device |
| CN110788391A (en) * | 2019-10-21 | 2020-02-14 | 大同新成新材料股份有限公司 | Intelligent slicing device for lithium battery processing pole piece |
| CN114211036A (en) * | 2021-11-09 | 2022-03-22 | 中国民用航空飞行学院 | Processing device and processing method for lithium battery pole piece |
| CN114211036B (en) * | 2021-11-09 | 2022-12-06 | 中国民用航空飞行学院 | Processing device and processing method for lithium battery pole piece |
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