CN105762330A - Punching device for aluminum foil or copper foil of lithium battery and production technology - Google Patents
Punching device for aluminum foil or copper foil of lithium battery and production technology Download PDFInfo
- Publication number
- CN105762330A CN105762330A CN201610281641.8A CN201610281641A CN105762330A CN 105762330 A CN105762330 A CN 105762330A CN 201610281641 A CN201610281641 A CN 201610281641A CN 105762330 A CN105762330 A CN 105762330A
- Authority
- CN
- China
- Prior art keywords
- copper foil
- foil
- water
- aluminium foil
- feeding roller
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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
Abstract
The invention relates to a punching device for aluminum foil or copper foil of a lithium battery and a production technology.The punching device comprises a machine frame, a pressurization water pump, a water jet cutter, an upper cutting die provided with multiple holes, a feeding roller, a conveying roller and a lower punching die work table, wherein water is pressurized and fed into the water jet cutter through the pressurization water pump, a feeding roller for the aluminum foil or copper foil is sent to the lower punching die work table through the conveying roller, and high-pressure water of the water jet cutter is sent to the lower punching die work table through a pore pair of the upper cutting die to punch the aluminum foil or copper foil.The punching technology comprises the steps of 1, installing an aluminum foil or copper foil roll on the feeding roller; 2, sending the aluminum foil or copper foil onto a work table to be processed through the feeding roller; 3, pressurizing water through the pressurization water pump; 4, sending the upper cutting die provided with multiple holes to the work table to be processed close to the aluminum foil or copper foil, and turning on a water jet cutter cutting switch to enable high-pressure water to penetrate through the holes in the upper cutting die so as to conduct punching on the aluminum foil or copper foil.
Description
Technical field
The present invention relates to the aluminium foil of lithium battery, Copper Foil processing technique field, in particular to the punch device that the aluminium foil of lithium battery, Copper Foil are punched and production technology.
Background technology
The positive and negative pole material of lithium battery is aluminium foil, Copper Foil, the base material of lithium battery positive and negative pole material the most frequently used at present is two-sided smooth aluminium foil, Copper Foil, basic production technique is impose the bag rich in lithium ion to starch on the surface of Al foil substrate, impose the graphite material rich in electronics on the surface of copper foil base material, be bonded through weight.This two-sided smooth aluminium foil, copper foil base material have clearly disadvantageous, and namely surfacing (bag slurry, graphite) adhesive strength is limited, easy to fall off, directly affects the service life of lithium battery, simultaneously, it is impossible to adapt to the use environment of special state (high temperature, low temperature).
It is desirable to porous foil, on aluminium foil, Copper Foil, namely get intensive aperture, this porous foil has two significant advantages as the both positive and negative polarity base material of lithium battery, one is that surfacing (bag slurry, graphite) adhesive force is strong, difficult drop-off, and two is that the capacity of battery dramatically increases.Porous foil can form two kinds of faying faces when bag slurry covers, one be bag slurry with foil directly in conjunction with, two be bag slurry through aperture and opposite side bag slurry directly in conjunction with, it is higher directly in conjunction with intensity that bag is starched, thus significantly improving the adhesive strength of surfacing, difficult drop-off, is suitable for the use environment of special state (high temperature, low temperature) simultaneously.Owing to foil is with intensive aperture, these apertures are all filled by bag slurry, so, the total amount of bag slurry dramatically increases, and the capacity of battery improves 20-40%.
Foil punching has high technology requirement, it is desirable to pore size is consistent, and uniformly, burr is minimum, and concrete technical specification is shown in following table in arrangement:
| Aluminium foil | Copper Foil | |
| Base material thickness | 20-30um | 8-20um |
| Aperture | 0.3-1mm | 0.2-1mm |
| Porosity | 20%-40% | 20%-40% |
Burr size: < 5um
Porous foil technology of preparing Japan grasps, and successfully produces in batches, is mainly used in high end cells manufacture, but this product is not sold to China, and implementation of China is also blocked by technology, technique.Domestic there is no possesses the producer producing porous foil at present, and existing producer, in the research of technique carrying out this product, uses needle-punching method, but the distribution in hole is irregular, and especially burr is larger in size, it is difficult to meet instructions for use.
Summary of the invention
It is an object of the invention to overcome weak point of the prior art, it is provided that the aluminium foil of lithium battery, Copper Foil carry out punch device and the production technology punched.
For achieving the above object, the present invention adopts the following technical scheme that:
The aluminium foil of lithium battery, Copper Foil punch device, described punch device includes frame, pressure pump, water cutter, sets mould in the cutting of a porous, also include feeding roller, transfer roller, punching lower die workbench, water pressurization is sent into water cutter by pressure pump, feeding roller by aluminium foil or Copper Foil, sending into punching lower die workbench by transfer roller, paper tinsel or Copper Foil are punched to sending into punching lower die workbench by the water under high pressure of water cutter by cutting the hole of upper mould.
Water is pressurized to 100～400MPa by described equal pressure pump.
Described equal pressure pump is mixed into Punica granatum L. sand in water under high pressure.
Lithium battery aluminium foil, Copper Foil drilling technology, its step is as follows:
1), by the material of aluminium foil, Copper Foil rolling up is arranged on feeding roller,
2) by feeding roller, aluminium foil, Copper Foil are sent on workbench to be processed,
3) water is pressurizeed by pressure pump,
4) upper for the cutting setting porous mould is sent into workbench to be processed close to aluminium foil, Copper Foil, start high pressure waterjet switch, make water under high pressure through the hole of the upper mould of cutting, aluminium foil, Copper Foil are carried out drilling operation.
Described water is mixed into Punica granatum L. sand in case, and is stirred.
After described aluminium foil, Copper Foil drilling operation, transmit a station by transfer roller, and the aluminium foil or aluminium foil that complete punching are punched out by blanking units, and waste material is carried out rolling.
The beneficial effects of the present invention is: the present invention adopts the cutting die of water cutter and porous, can high efficiency to aluminium foil, Copper Foil drilling operation, punch distribution rule, substantially without burr, disclosure satisfy that the high end cells manufacture porous to aluminium foil, Copper Foil, it is provided that battery capacity and raising battery life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the punch device of the present invention.
Detailed description of the invention
Below in conjunction with each specific embodiment and Figure of description, the invention will be further described:
As shown in Figure 1, the aluminum paper tinsel of lithium battery, the punch device of Copper Foil, described punch device includes frame, pressure pump 1, water cutter 6, if mould 2 in the cutting of individual porous, also include feeding roller 4, transfer roller 3, punching lower die workbench 5, water pressurization is sent into water cutter 6 by pressure pump 1, aluminium foil or Copper Foil are sent into punching lower die workbench 5 by transfer roller 3 by feeding roller 4, transfer roller 3 can drive it to rotate by motor, paper tinsel or Copper Foil are punched to sending into punching lower die workbench 5 by the water under high pressure of water cutter 6 by cutting the hole of upper mould 2, this some holes pore size is consistent, arrangement is uniformly, burr is minimum
Water is pressurized to 100～400MPa by equal pressure pump 1, and high-pressure water knife quickly enters the upper mould 2 of cutting, quickly paper tinsel or Copper Foil is punched, and process time is short.Equal pressure pump 1 is mixed into Punica granatum L. sand in water under high pressure, and material cutting loss is considerably less, and cutting force is little decreases auxiliary operation, impulse-free robustness.
Through test, adopt institute of the present invention punched hole parameter such as following table, surfacing (bag slurry, graphite) adhesive force, difficult drop-off can be strengthened, increase the capacity of battery.
| Aluminium foil | Copper Foil | |
| Base material thickness | 25um | 15um |
| Aperture | 0.6mm | 0.5mm |
| Porosity | 37% | 37% |
Lithium battery aluminium foil, Copper Foil drilling technology, its step is as follows:
1), by the material of aluminium foil, Copper Foil rolling up is arranged on feeding roller 4,
2) by feeding roller 4, aluminium foil, Copper Foil are sent on workbench to be processed,
3) being pressurizeed by pressure pump 1 by water, water is mixed into Punica granatum L. sand in case, and is stirred,
4) upper for the cutting setting porous mould 2 is sent into workbench to be processed close to aluminium foil, Copper Foil, start water cutter 6 cutting switch, make water under high pressure through the hole of the upper mould 2 of cutting, aluminium foil, Copper Foil are carried out drilling operation.
5) aluminium foil, after Copper Foil drilling operation, transmit a station by transfer roller 3, and the aluminium foil or aluminium foil that complete punching are punched out by blanking units, and waste material is carried out rolling.
The above is only to presently preferred embodiments of the present invention; not the scope of the present invention is defined; therefore under the premise designing spirit without departing from the present invention; the equivalence that structure of the present invention, feature and principle are done by this area ordinary skill technical staff changes or decoration, all should fall in the protection domain of the present patent application patent.
Claims (6)
1. the punch device of the aluminium foil of lithium battery, Copper Foil, it is characterized in that: described punch device includes frame, pressure pump, water cutter, sets mould in the cutting of a porous, also include feeding roller, transfer roller, punching lower die workbench, water pressurization is sent into water cutter by pressure pump, feeding roller by aluminium foil or Copper Foil, sending into punching lower die workbench by transfer roller, paper tinsel or Copper Foil are punched to sending into punching lower die workbench by the water under high pressure of water cutter by cutting the hole of upper mould.
2. punch device according to claim 1, it is characterised in that: water is pressurized to 100～400MPa by described equal pressure pump.
3. punch device according to claim 1, it is characterised in that: described equal pressure pump is mixed into Punica granatum L. sand in water under high pressure.
4. the drilling technology of lithium battery aluminium foil according to claim 1-3 any one claim, Copper Foil, it is characterised in that: its step is as follows:
1), by the material of aluminium foil, Copper Foil rolling up is arranged on feeding roller,
2) by feeding roller, aluminium foil, Copper Foil are sent on workbench to be processed,
3) water is pressurizeed by pressure pump,
4) upper for the cutting setting porous mould is sent into workbench to be processed close to aluminium foil, Copper Foil, start high pressure waterjet switch, make water under high pressure through the hole of the upper mould of cutting, aluminium foil, Copper Foil are carried out drilling operation.
5. drilling technology according to claim 4, it is characterised in that: described water is mixed into Punica granatum L. sand in case, and is stirred.
6. drilling technology according to claim 4, it is characterised in that: after described aluminium foil, Copper Foil drilling operation, transmit a station by transfer roller, and the aluminium foil or aluminium foil that complete punching are punched out by blanking units, and waste material is carried out rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610281641.8A CN105762330A (en) | 2016-04-29 | 2016-04-29 | Punching device for aluminum foil or copper foil of lithium battery and production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610281641.8A CN105762330A (en) | 2016-04-29 | 2016-04-29 | Punching device for aluminum foil or copper foil of lithium battery and production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105762330A true CN105762330A (en) | 2016-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610281641.8A Pending CN105762330A (en) | 2016-04-29 | 2016-04-29 | Punching device for aluminum foil or copper foil of lithium battery and production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105762330A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102914A (en) * | 2019-04-26 | 2019-08-09 | 涿州皓原箔业有限公司 | All-in-one machine and processing method are cut out in a kind of punching of aluminium foil embossing |
| CN110918774A (en) * | 2019-11-20 | 2020-03-27 | 嘉善卓润五金制品有限公司 | Punching device |
| CN112792745A (en) * | 2020-12-29 | 2021-05-14 | 中核建中核燃料元件有限公司 | Water jet cutting manufacturing method for chip-proof plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029626A (en) * | 2010-07-29 | 2011-04-27 | 浙江昌宇达光电通信有限公司 | Film pneumatic punching method and corresponding equipment |
| CN202910937U (en) * | 2012-09-29 | 2013-05-01 | 孙朝金 | Drilling spray head for water jet cutter and water jet cutter |
| CN104647219A (en) * | 2014-06-21 | 2015-05-27 | 柳州凯通机械有限公司 | Method for machining bee-hole in curved plate |
| US20150344252A1 (en) * | 2014-05-29 | 2015-12-03 | Koreajcc Co., Ltd. | Apparatus for manufacturing current collector |
| CN205009059U (en) * | 2015-08-20 | 2016-02-03 | 揭阳市合升机械石材有限公司 | Numerical control water sword cutting machine |
| CN205810949U (en) * | 2016-04-29 | 2016-12-14 | 廖雪光 | The aluminium foil of lithium battery, the punch device of Copper Foil |
-
2016
- 2016-04-29 CN CN201610281641.8A patent/CN105762330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029626A (en) * | 2010-07-29 | 2011-04-27 | 浙江昌宇达光电通信有限公司 | Film pneumatic punching method and corresponding equipment |
| CN202910937U (en) * | 2012-09-29 | 2013-05-01 | 孙朝金 | Drilling spray head for water jet cutter and water jet cutter |
| US20150344252A1 (en) * | 2014-05-29 | 2015-12-03 | Koreajcc Co., Ltd. | Apparatus for manufacturing current collector |
| CN104647219A (en) * | 2014-06-21 | 2015-05-27 | 柳州凯通机械有限公司 | Method for machining bee-hole in curved plate |
| CN205009059U (en) * | 2015-08-20 | 2016-02-03 | 揭阳市合升机械石材有限公司 | Numerical control water sword cutting machine |
| CN205810949U (en) * | 2016-04-29 | 2016-12-14 | 廖雪光 | The aluminium foil of lithium battery, the punch device of Copper Foil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102914A (en) * | 2019-04-26 | 2019-08-09 | 涿州皓原箔业有限公司 | All-in-one machine and processing method are cut out in a kind of punching of aluminium foil embossing |
| CN110918774A (en) * | 2019-11-20 | 2020-03-27 | 嘉善卓润五金制品有限公司 | Punching device |
| CN112792745A (en) * | 2020-12-29 | 2021-05-14 | 中核建中核燃料元件有限公司 | Water jet cutting manufacturing method for chip-proof plate |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |