CN210628394U - Diaphragm static-removing device in lithium battery winding process - Google Patents
Diaphragm static-removing device in lithium battery winding process Download PDFInfo
- Publication number
- CN210628394U CN210628394U CN201921553435.3U CN201921553435U CN210628394U CN 210628394 U CN210628394 U CN 210628394U CN 201921553435 U CN201921553435 U CN 201921553435U CN 210628394 U CN210628394 U CN 210628394U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- discharge needles
- static
- power supply
- voltage power
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The utility model provides a lithium cell coiling in-process diaphragm static-removing device, including earth connection, high voltage power supply and many discharge needles, earth connection one end is connected with the high voltage power supply electricity, other end ground connection, many discharge needles are connected with the high voltage power supply electricity respectively, and many discharge needles all set up in diaphragm one side or set up respectively in the diaphragm both sides, lie in the diaphragm with a plurality of discharge needles of one side along the direction of delivery interval arrangement of diaphragm and form the static area that removes, the equal vertical direction diaphragm of discharge needle. The utility model discloses can accelerate to detach the static on the diaphragm.
Description
Technical Field
The utility model relates to a lithium ion battery manufacture equipment technical field, concretely relates to lithium cell coiling in-process diaphragm static-removing device.
Background
The lithium ion battery consists of a positive electrode, a negative electrode, a diaphragm, electrolyte and a shell. The separator plays an important role as an inner layer component in a lithium ion battery. The performance of the separator determines the internal resistance, capacity, safety performance, and the like of the lithium ion battery. The diaphragm in the lithium ion battery has the main function of isolating the positive and negative pole pieces to prevent contact short circuit. During the winding process of the diaphragm, static electricity is generated through friction between diaphragm rollers, and the static electricity can adsorb dust to cause the penetration of the diaphragm when the dust passes through a short-circuit test; static electricity can cause the book needle to adsorb the diaphragm and cause the difficulty of loosing core.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a lithium cell coiling in-process diaphragm static-removing device to the static on the diaphragm is detached in the acceleration.
The utility model provides a diaphragm static-removing device in the winding process of a lithium battery, which comprises an earth wire, a high-voltage power supply and a plurality of discharge needles, wherein one end of the earth wire is electrically connected with the high-voltage power supply, the other end of the earth wire is grounded, and the plurality of discharge needles are respectively electrically connected with the high-voltage power supply;
the plurality of discharge needles are arranged on one side of the diaphragm or on two sides of the diaphragm respectively, the discharge needles on the same side of the diaphragm are arranged at intervals along the conveying direction of the diaphragm to form an antistatic belt, and the discharge needles vertically point to the diaphragm.
Preferably, the distance between the needle tip of the discharge needle and the diaphragm is 30-200 mm.
Preferably, the length of the static elimination belt is 100-600 mm.
Preferably, the distance between adjacent discharge needles is 30-50 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the high-voltage power supply applies voltage to the discharge needles, so that corona discharge is generated at the front ends of the discharge needles, air around the discharge needles is ionized and decomposed to generate positive and negative ions, the positive and negative ions and static electricity of the static membrane are neutralized, static electricity on the membrane is eliminated, and the discharge needles are arranged on one side of the membrane or on two sides of the membrane respectively to accelerate static elimination of the membrane.
(2) The static eliminating belt adjusts the static eliminating effect of the static eliminating belt on the diaphragm by adjusting the number of the discharge needles, the distance between the adjacent discharge needles and the distance between the discharge needles and the diaphragm, so that the static eliminating is accelerated.
Drawings
Fig. 1 is a schematic structural view of a separator static electricity removing device in a lithium battery winding process according to the present invention.
Fig. 2 is an application schematic diagram of the separator static electricity removing device in the winding process of the lithium battery.
Detailed Description
Referring to fig. 1, the utility model provides a diaphragm static-removing device in the winding process of lithium battery, which comprises an earth wire 1, a high-voltage power supply 2 and a plurality of discharge needles 3, wherein one end of the earth wire 1 is electrically connected with the high-voltage power supply 2, the other end is grounded, and the plurality of discharge needles 3 are respectively electrically connected with the high-voltage power supply 2;
the discharge needles 3 are arranged on one side of the diaphragm or on two sides of the diaphragm respectively, the discharge needles 3 located on the same side of the diaphragm are arranged at intervals along the conveying direction of the diaphragm to form an antistatic band, and the discharge needles 3 all point to the diaphragm vertically.
The utility model applies voltage to the discharge needles 3 by the high voltage power supply 2, so that the front ends of the discharge needles 3 generate corona discharge, air around the discharge needles 3 is ionized and decomposed to generate positive and negative ions, and the discharge needles 3 all point to the diaphragm vertically, and the positive and negative ions and the static electricity of the diaphragm with static electricity are neutralized mutually, thereby eliminating the static electricity on the diaphragm, and a plurality of discharge needles 3 are all arranged on one side of the diaphragm or are respectively arranged on the two sides of the diaphragm to accelerate the static electricity elimination of the diaphragm; the static eliminating belt adjusts the static eliminating effect of the static eliminating belt on the diaphragm by adjusting the number of the discharge needles 3, the interval between the adjacent discharge needles 3 and the distance between the discharge needles 3 and the diaphragm, so that the static eliminating is accelerated. To sum up, the utility model has the advantages of simple structure, the equipment is convenient, and it is fast to destatic.
In the present embodiment, the distance between the tip of the discharge needle 3 and the diaphragm is 30 to 200mm to eliminate static electricity on the diaphragm more quickly. The distance between the discharge needle 3 and the diaphragm can be adjusted according to the actual process requirements.
In the embodiment, the length of the static elimination belt is 100-600mm, so that static on the diaphragm can be eliminated more quickly.
In the present embodiment, the distance between the adjacent discharge needles 3 is 30-50mm to match the range of the corona discharge generated at the front ends of the discharge needles 3, so as to eliminate the static electricity on the diaphragm better and faster.
When the high-voltage power supply is used specifically, the working voltage of the high-voltage power supply is 4KV-7 KV. When the ion source is used specifically, the electricity eliminating speed is less than or equal to 0.1s, and the ion balance degree is +/-15V.
When the separator is used specifically, referring to fig. 2, when the winding machine starts to work, the diaphragm roll 4 starts to unwind, the diaphragm is transmitted between the diaphragm rollers 5, and then static electricity is removed through the static electricity removal device.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A diaphragm static electricity removing device in a lithium battery winding process is characterized by comprising a grounding wire (1), a high-voltage power supply (2) and a plurality of discharge needles (3), wherein one end of the grounding wire (1) is electrically connected with the high-voltage power supply (2), the other end of the grounding wire is grounded, and the plurality of discharge needles (3) are respectively and electrically connected with the high-voltage power supply (2);
the discharge needles (3) are arranged on one side of the diaphragm or on two sides of the diaphragm respectively, the discharge needles (3) located on the same side of the diaphragm are arranged at intervals along the conveying direction of the diaphragm to form an electrostatic elimination belt, and the discharge needles (3) point to the diaphragm vertically.
2. The separator static electricity removing device in the lithium battery winding process according to claim 1, wherein the distance between the needlepoint of the discharge needle (3) and the separator is 30-200 mm.
3. The separator static electricity removal device in the winding process of the lithium battery as claimed in claim 1, wherein the length of the static electricity removal tape is 100-600 mm.
4. The separator static discharge apparatus for a lithium battery during winding according to claim 3, wherein the interval between the adjacent discharge needles (3) is 30-50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553435.3U CN210628394U (en) | 2019-09-18 | 2019-09-18 | Diaphragm static-removing device in lithium battery winding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553435.3U CN210628394U (en) | 2019-09-18 | 2019-09-18 | Diaphragm static-removing device in lithium battery winding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210628394U true CN210628394U (en) | 2020-05-26 |
Family
ID=70749269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921553435.3U Active CN210628394U (en) | 2019-09-18 | 2019-09-18 | Diaphragm static-removing device in lithium battery winding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210628394U (en) |
-
2019
- 2019-09-18 CN CN201921553435.3U patent/CN210628394U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016201758A1 (en) | Passive compound strong-ionization discharging plasma lightning rejection device | |
| CN102254764B (en) | Bearing device of component | |
| CN107123785A (en) | Lithium system is mended to pole piece | |
| US4849851A (en) | Static electric discharge apparatus with active electrical circuit | |
| CN210628394U (en) | Diaphragm static-removing device in lithium battery winding process | |
| CN105789709A (en) | Method for statically charging diaphragm and adsorbing diaphragm to electrode | |
| MY185321A (en) | Method for pre-doping negative electrode active material and method for manufacturing electrode for electric device and electrical device | |
| CN207603975U (en) | The anti-locking apparatus of static discharge | |
| KR20080042967A (en) | Process for preparation of jelly-roll type electrode assembly having improved contact intensity by static electricity | |
| CN109768534A (en) | A kind of Multiple level type surge protection device of active triggering | |
| ES455359A1 (en) | Means for improving ionization efficiency of high-voltage grid systems | |
| CN112499327A (en) | Polyimide film rolling dust shaker | |
| EP4084243A1 (en) | Electrostatic precipitator | |
| CN203446094U (en) | Braided fabric electrostatic eliminator for computerized flat knitter | |
| CN205949063U (en) | Electrostatic precipitator unit based on PCB technology | |
| CN102573256B (en) | Static electricity removing system and use thereof for removing static electricity on surface of thin film | |
| CN201732981U (en) | Protective cover and ion generator | |
| CN202447199U (en) | Ionization collector | |
| CN210145301U (en) | Electrostatic protection equipment for assembly line operation | |
| CN112692152B (en) | Tab die cutting method of intercoated pole piece | |
| CN204011486U (en) | Micropore piezo-electric electret thin film assembly volume to volume continuous polarization device | |
| CN216141798U (en) | Electrostatic electret for melt-blown cloth | |
| CN215051570U (en) | Electrostatic electret device with carbon fiber array structure electret chamber | |
| CN202524632U (en) | Static eliminator | |
| CN206484935U (en) | The ingot stripper of anti-static device is set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |