CN207883803U - A kind of electrodes of lithium-ion batteries cutting device - Google Patents
A kind of electrodes of lithium-ion batteries cutting device Download PDFInfo
- Publication number
- CN207883803U CN207883803U CN201721824736.6U CN201721824736U CN207883803U CN 207883803 U CN207883803 U CN 207883803U CN 201721824736 U CN201721824736 U CN 201721824736U CN 207883803 U CN207883803 U CN 207883803U
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- China
- Prior art keywords
- cutter
- cutting
- lithium
- electrodes
- pole piece
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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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses a kind of electrodes of lithium-ion batteries cutting devices, including rack and the upper cutter shaft and the lower that are horizontally arranged in rack, the cutter and bottom knife of several groups mutual cooperation cutting pole piece are respectively arranged on the upper cutter shaft and lower, two cutter cutting edges directions positioned at both ends are identical as adjacent cutter, remaining cutter cutting edge direction is opposite with adjacent cutter.The utility model electrodes of lithium-ion batteries cutting device is identical as adjacent cutter by the two cutter cutting edges directions that will be located at both ends, remaining cutter cutting edge direction is opposite with adjacent cutter, to when cutting pole piece, both sides are reduced because tension is different and the presence of cutter blade angle impacts pole piece extruding after cutting so that pole piece notch is more neat.
Description
Technical field
The utility model is related to lithium ion battery production equipment technologies, more particularly to a kind of electrodes of lithium-ion batteries
Cutting device.
Background technology
Lithium battery is widely used in various electronic products, also has good application prospect in following electric vehicle.
The technology of lithium ion battery is very stringent, complicated, generally comprises material and prepares, is homogenized, is coated with, rolls, cuts, dries
Multiple links such as bake, wind, entering shell, Laser Welding, baking, fluid injection, preliminary filling, sealing, cleaning, aging, full inspection, shipment.
Pole piece is the core of lithium battery, and the discharge and recharge reaction of battery depends primarily on active material and electrolysis on substrate
What liquid carried out, in the production process of lithium battery, pole piece directly affects the key factor of the performance of accumulator.When preparing pole piece,
Active material with special solvent and bonding agent respectively at positive and negative anodes mixes, and after agitated mixing, anode and cathode slurry is made
Manufactured slurry, is uniformly coated in the surface of metal foil by substance, and pole piece is made after rolling in drying.
Since the area of manufactured pole piece is very big, in order to meet different size lithium battery pole piece requirement, need
Pole piece is cut.Electrodes of lithium-ion batteries carving knife mainly has two kinds of forms of roller knife and disk carving knife, disk point at present
The blade of cutter is disc-shaped and has certain blade angle, is cut by the cutter and bottom knife of cooperation, due to
Disk carving knife cutting quality is relatively preferable, and efficiency is also higher, and the application in production is than wide.
In the prior art, electrodes of lithium-ion batteries cutting device is generally cutting edge between two neighboring cutter or bottom knife
Towards on the contrary, it is both sides because tension is different and the presence of cutter blade angle squeezes pole piece after cutting to exist for problem in this way
It impacts, causes pole piece notch not neat enough.
For example, the Chinese utility model patent that Authorization Notice No. is CN202984802U discloses a kind of battery pole piece disk
Carving knife, including rack and the upper cutter shaft in the rack and lower are distributed in the upper cutter shaft and lower
There are mutually matched several groups cutter and a bottom knife, the blade angle of the cutter and bottom knife is 20~35 degree；Institute
It states cutter shaft and lower is mutually parallel, both ends are slidably mounted in rack, are additionally provided in the rack for limiting
Cutter shaft and the detent mechanism for cutting shaft position.
Utility model content
The utility model is directed to the deficiencies in the prior art, provides a kind of electrodes of lithium-ion batteries cutting device,
Electrodes of lithium-ion batteries cutting device in the prior art is solved because both sides tension is different and the presence of cutter blade angle is made
At not neat enough the problem of pole piece notch.
A kind of electrodes of lithium-ion batteries cutting device, including rack and the upper cutter shaft that is horizontally arranged in rack and cut
Axis is respectively arranged with several groups on the upper cutter shaft and lower and cooperates the cutter and bottom knife of cutting pole piece, is located at
Two cutter cutting edges directions at both ends are identical as adjacent cutter, remaining cutter cutting edge direction and adjacent cutter phase
Instead.
The bottom knife is 90 degree of right angle knives.Because pole piece is pressed on bottom knife, bottom knife bears larger gravity and divides
The pressure that cutter squeezes pole piece cutting when cutting, bottom knife are easily damaged, and bottom knife uses 90 degree of right angle knives, can make knife
Have longer life expectancy, it is more robust.
The outer surface of the lower is arranged with broach shell, and the broach shell is the multistage separated by bottom knife, broach shell it is straight
Diameter is smaller 0.4~0.6mm than the outer diameter of bottom knife.When cutting, pole piece sticks on broach shell and bottom knife, by the diameter design of broach shell
At more smaller than the outer diameter of bottom knife, make slightly to raise at the cutting position of pole piece, convenient for cutting, reduces blade pair in cutting process
The damage of pole piece.
The broach shell, which is located at bottom knife cutting edge side, has groove, and buffer matrix is filled in groove.The buffer matrix can be with
It is soft foam cotton or other substances with certain flexibility.The use of buffer matrix can reduce pole piece in the slitting process because
It loses powder to be squeezed.
The blade angle of the cutter is 20~50 degree.
The utility model electrodes of lithium-ion batteries cutting device by will be located at two cutter cutting edges at both ends towards with
Adjacent cutter is identical, remaining cutter cutting edge, on the contrary, to when cutting pole piece, reduces both sides towards with adjacent cutter
Because tension is different and the presence of cutter blade angle impacts pole piece extruding after cutting so that pole piece notch is more whole
Together.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model electrodes of lithium-ion batteries cutting device.
Fig. 2 is A partial enlarged views in Fig. 1.
Fig. 3 is the structural schematic diagram of upper and lower blades fit.
Fig. 4 is B partial enlarged views in Fig. 3.
Specific implementation mode
As shown in figures 1-4, a kind of electrodes of lithium-ion batteries cutting device, including rack 1 and it is horizontally arranged at rack 1
On upper cutter shaft 2 and lower 3, several groups are respectively arranged on upper cutter shaft 2 and lower 3 and are cooperated the upper slitter of cutting pole piece
Piece 4 and bottom knife 5, cutter 4 and bottom knife 5 are the blade of circular ring shape, wherein are located at the sword of two cutters 4 at both ends
Mouthfuls 7 towards identical as adjacent cutter 4, the cutting edge 7 of remaining cutter 4 is towards opposite with adjacent cutter 4.To cut
When pole piece, reduces both sides and is impacted because the presence of tension difference and 7 angle of cutting edge of cutter 4 squeezes pole piece after cutting,
So that pole piece notch is more neat.
Cutter 4 is mounted on by mounting base 6 on upper cutter shaft 2, and the angle, θ of the cutting edge 7 of cutter 4 is 20~50 degree.
The outer surface of lower 3 is arranged with broach shell 8, and broach shell 8 is the multistage separated by bottom knife 5, every circular ring shape
Bottom knife 5 is fixedly clamped by two sections of adjacent broach shells in lower 3.The diameter of broach shell 8 is smaller than the outer diameter of bottom knife 5 by 0.4~
0.6mm.When cutting, pole piece sticks on broach shell 8 and bottom knife 5, by the diameter design of broach shell 8 at the outer diameter summary than bottom knife 5
It is small, make slightly to raise at the cutting position of pole piece, convenient for cutting, reduces damage of the blade to pole piece in cutting process.
Broach shell 8, which is located at 5 cutting edge side of bottom knife, has groove, fills buffer matrix 9 in groove, buffer matrix 9 can be soft
Foam cotton or other substances with certain flexibility.The use of buffer matrix 9 can reduce pole piece in the slitting process because
It is squeezed and loses powder.
In wherein a kind of embodiment, bottom knife 5 is 90 degree of right angle knives, because pole piece is pressed on bottom knife 5, bottom knife
5 bear the pressure that cutter 4 squeezes pole piece cutting when larger gravity and cutting, and bottom knife 5 is easily damaged, and bottom knife 5
Using 90 degree of right angle knives, cutter life can be made longer, it is more robust.
Claims (5)
1. a kind of electrodes of lithium-ion batteries cutting device, including rack and the upper cutter shaft that is horizontally arranged in rack and cut
Axis is respectively arranged with several groups on the upper cutter shaft and lower and cooperates the cutter and bottom knife of cutting pole piece, special
Sign is that two cutter cutting edges directions for being located at both ends are identical as adjacent cutter, remaining cutter cutting edge direction and phase
Adjacent cutter is opposite.
2. electrodes of lithium-ion batteries cutting device as described in claim 1, which is characterized in that the bottom knife is 90 degree of right angles
Knife.
3. electrodes of lithium-ion batteries cutting device as described in claim 1, which is characterized in that the appearance surface cover of the lower
Equipped with broach shell, the broach shell is the multistage separated by bottom knife, and the diameter of broach shell is smaller 0.4~0.6mm than the outer diameter of bottom knife.
4. electrodes of lithium-ion batteries cutting device as claimed in claim 3, which is characterized in that the broach shell is located at bottom knife sword
Mouth side has groove, and buffer matrix is filled in groove.
5. electrodes of lithium-ion batteries cutting device as described in claim 1, which is characterized in that the blade angle of the cutter
It is 20~50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824736.6U CN207883803U (en) | 2017-12-22 | 2017-12-22 | A kind of electrodes of lithium-ion batteries cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824736.6U CN207883803U (en) | 2017-12-22 | 2017-12-22 | A kind of electrodes of lithium-ion batteries cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207883803U true CN207883803U (en) | 2018-09-18 |
Family
ID=63503305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721824736.6U Active CN207883803U (en) | 2017-12-22 | 2017-12-22 | A kind of electrodes of lithium-ion batteries cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207883803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361021A (en) * | 2018-10-30 | 2019-02-19 | 广东粤迪厚创科技发展有限公司 | A kind of production technology of lithium battery |
-
2017
- 2017-12-22 CN CN201721824736.6U patent/CN207883803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361021A (en) * | 2018-10-30 | 2019-02-19 | 广东粤迪厚创科技发展有限公司 | A kind of production technology of lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100, No. 18, Qiao Qiao Road, Changxing County painting industrial park, Zhejiang, Huzhou Patentee after: Tianneng Shuai Fude Energy Co., Ltd Address before: 313100, No. 18, Qiao Qiao Road, Changxing County painting industrial park, Zhejiang, Huzhou Patentee before: Zhejiang energy energy Polytron Technologies Inc |