CN113675361A - Device and method for preparing double-gap multi-gap and multi-tab of battery pole piece - Google Patents
Device and method for preparing double-gap multi-gap and multi-tab of battery pole piece Download PDFInfo
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- CN113675361A CN113675361A CN202110922227.1A CN202110922227A CN113675361A CN 113675361 A CN113675361 A CN 113675361A CN 202110922227 A CN202110922227 A CN 202110922227A CN 113675361 A CN113675361 A CN 113675361A
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0419—Methods of deposition of the material involving spraying
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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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- Engineering & Computer Science (AREA)
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a device and a method for preparing a battery pole piece double-gap multi-gap and multi-tab, which relate to the technical field of battery manufacturing.A first overflow cavity and a second overflow cavity are arranged, and the first overflow cavity is communicated with an upper die cavity, so that active substances are simultaneously sprayed out from all the upper die cavities after flowing through the first overflow cavity; similarly, the second overflow cavity is communicated with the lower die cavity, so that the active substances are simultaneously sprayed out from all the lower die cavities after flowing through the second overflow cavity; compared with the prior art, the method has the advantages that the blank area is directly reserved in the process of coating the active substances on the current collector, so that the working procedures are saved, the investment of processing equipment is reduced, the processing time is shortened, and the material waste is reduced.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a device and a method for preparing a battery pole piece with double gaps, multiple gaps and multiple tabs.
Background
In the electronic industry, batteries are used as the heart of electronic products, in the current society, green and efficient secondary batteries are vigorously developed in various countries, and lithium ion batteries are used as novel secondary batteries, have the advantages of large energy density and power density, high working voltage, light weight, small volume, long cycle life, good safety, environmental friendliness and the like, and have wide application prospects in the aspects of portable electrical appliances, electric tools, large-scale energy storage, electric traffic power supplies and the like.
With the demands on the charging speed and the improvement of the comprehensive performance of the battery core, the battery core with the middle tab is produced by transportation, the welding position of the tab is directly reserved, or secondary processing is carried out to meet the requirements on the improvement of the charging speed and the comprehensive performance of the battery core; however, the methods of sticking the thermal expansion foaming pressure sensitive adhesive tape on the position of the reserved current collector area and using laser to clean off active substances to reserve the welding position of the tab have the defects of multiple working procedures, time consumption, material waste and the like; on the contrary, if the blank space can be reserved directly in the dressing process, the working procedures can be saved for the subsequent processing, the investment of processing equipment is reduced, the processing time is greatly reduced, the material waste is reduced, the optimal processing process is realized in the battery pole piece, and the cost is the lowest.
Disclosure of Invention
The invention aims to realize that a blank area is reserved directly in the process of coating active substances on a current collector, thereby saving working procedures, reducing the investment of processing equipment, reducing the processing time and reducing the material waste.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a device for preparing double-gap multi-gap and multi-tab of a battery pole piece comprises an upper die, an upper gasket, a middle die, a lower gasket and a lower die which are fixedly arranged from top to bottom in sequence,
a plurality of upper notches are formed in the upper gasket at equal intervals, the upper die and the middle die are respectively enclosed at the upper end and the lower end of the upper notches to form an upper die cavity, a first overflow cavity is formed in the middle die, and the first overflow cavity is communicated with the upper die cavity;
a plurality of lower breach have been seted up to the equidistance on the lower gasket, go up breach and lower breach crisscross complementary each other, well mould and lower mould enclose respectively in the upper and lower end of breach down to form die cavity down, the second overflow chamber has been seted up on the lower mould, and second overflow chamber and lower die cavity intercommunication.
Furthermore, an inclined plane is formed at the upper end of the middle die, the upper die is fixedly arranged on the inclined plane, and the upper gasket is fixedly arranged between the upper die and the inclined plane.
Further, first overflow chamber is located the inclined plane upper end, first cushion chamber has still been seted up on the inclined plane, first cushion chamber and last die cavity intercommunication, and first cushion chamber is located between first overflow chamber and the end of last die cavity.
Further, the second overflow chamber is located the lower mould upper end, a second cushion chamber has still been seted up to the lower mould upper end, second cushion chamber and lower mould chamber intercommunication, and the second cushion chamber is located between the end of second overflow chamber and lower die cavity.
Furthermore, a first feed inlet is formed in one side of the middle die and is communicated with the first overflow cavity; a second feed inlet is formed in one side of the lower die, and the second feed inlet is communicated with the second overflow cavity.
Further, still include first pump and second pump, first pump is through managing pipe and first feed inlet intercommunication, the second pump is through managing pipe and second feed inlet intercommunication.
Further, an upper nozzle is formed at the tail end of the upper die cavity, a lower nozzle is formed at the tail end of the lower die cavity, and the upper nozzle and the lower nozzle are located on the same side of the middle die.
Further, the device also comprises a driving roller, and the upper nozzle and the lower nozzle are matched with the driving roller simultaneously.
Furthermore, an adjusting groove is formed in one side, close to the upper nozzle, of the upper die.
The invention also provides a preparation method of the battery pole piece double-gap multi-gap and multi-tab, which comprises the preparation device of the battery pole piece double-gap multi-gap and multi-tab, and comprises the following steps:
one end of a current collector wound into a roll is pulled out and wound on a driving roller, and the current collector is driven to rotate at a constant speed when the driving roller rolls;
pumping active substances into the first feed port through a first pump, wherein the active substances sequentially flow through a first overflow cavity, an upper die cavity, a first buffer cavity, an upper die cavity and an upper nozzle and are finally sprayed onto the front surface of the current collector through the upper nozzle;
step three, when the first pump works, the second pump pumps active substances into the second feed port, and the active substances sequentially flow through the second overflow cavity, the lower die cavity, the second buffer cavity, the lower die cavity and the lower nozzle and are finally sprayed onto the front surface of the current collector through the lower nozzle; the upper notches and the lower notches are mutually staggered and complemented, and the upper nozzle and the lower nozzle are correspondingly staggered and complemented, so that the active substances are completely covered on the front surface of the current collector;
step four, pausing the second pump for 0.5 second at fixed intervals according to requirements, and pausing the ejection of active substances by the lower nozzle within 0.5 second correspondingly, so that a discontinuous white exposure area is formed on the front surface of the current collector, and the welding of a tab is facilitated;
step five, repeating the step one to the step three, and completely coating the back surface of the current collector with active substances;
and step six, cutting the coiled current collector into single current collectors to obtain finished products.
The invention has the beneficial effects that: according to the invention, the first overflow cavity and the second overflow cavity are arranged, and the first overflow cavity is communicated with the upper die cavities, so that active substances are ensured to be simultaneously sprayed out from all the upper die cavities after flowing through the first overflow cavity; similarly, the second overflow cavity is communicated with the lower die cavity, so that the active substances are simultaneously sprayed out from all the lower die cavities after flowing through the second overflow cavity; on the other hand, the upper notches and the lower notches are mutually staggered and complemented, so that active substances sprayed out of the upper die cavity and the lower die cavity simultaneously can completely cover one surface of the current collector, when a blank area needs to be reserved on the current collector, the active substances can be supplied into the second overflow cavity only by temporarily stopping, and compared with the traditional technology that a thermal expansion foaming pressure sensitive adhesive tape is pasted on the reserved current collector area position and the laser cleaning is used for removing the active substances on the front side and the back side of a lithium battery pole piece, the method realizes that the blank area is directly reserved in the process of coating the active substances on the current collector, thereby saving the working procedure, reducing the investment of processing equipment, reducing the processing time and reducing the material waste.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an upper mold, an upper gasket, a middle mold, a lower gasket and a lower mold of the present invention when they are connected together;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a rear view of the structure of the upper die, upper gasket, middle die, lower gasket and lower die of the present invention;
FIG. 5 is an exploded view of the upper mold, upper gasket, middle mold, lower gasket and lower mold of the present invention;
FIG. 6 is a schematic structural view of an upper gasket, a middle mold, a lower gasket and a lower mold of the present invention;
FIG. 7 is a schematic view of the construction of the lower shim and lower die of the present invention;
FIG. 8 is a schematic view of the construction of the upper and lower shims of the present invention;
FIG. 9 is a cross-sectional view of the upper die, upper gasket, middle die, lower gasket, and lower die of the present invention;
FIG. 10 is an enlarged view at B in FIG. 9;
the reference signs are:
the upper die 1, the adjusting groove 11,
an upper gasket 2, an upper notch 21, an upper die cavity 22, a first buffer cavity 23, an upper nozzle 24,
a middle die 3, a bevel 31, a first overflow cavity 32, a first feed inlet 33,
a lower gasket 4, a lower notch 41, a lower die cavity 42, a lower nozzle 43,
the lower die 5, the second overflow chamber 51, the second buffer chamber 52, the second feed port 53,
a first pump 6, a second pump 7, and a drive roll 8.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs as shown in fig. 1 to 10 comprises an upper die 1, an upper gasket 2, a middle die 3, a lower gasket 4, a lower die 5, a first pump 6, a second pump 7 and a driving roller 8, wherein the upper die 1, the upper gasket 2, the middle die 3, the lower gasket 4 and the lower die 5 are fixedly arranged from top to bottom in sequence.
The upper end of the middle die 3 is provided with an inclined plane 31, the inclined plane 31 and the bottom surface of the middle die 3 are intersected to form an intersecting line, the upper die 1 is fixedly arranged on the inclined plane 31, and the upper gasket 2 is fixedly arranged between the upper die 1 and the inclined plane 31.
A plurality of upper gaps 21 are equidistantly formed in the upper gasket 2, the upper die 1 and the middle die 3 are respectively enclosed at the upper end and the lower end of the upper gaps 21 to form an upper die cavity 22, the middle die 3 is provided with a first overflow cavity 32, the first overflow cavity 32 is communicated with the upper die cavity 22, and the tail end of the upper die cavity 22 forms an upper nozzle 24.
The first overflow cavity 32 is located at the upper end of the inclined plane 31, the inclined plane 31 is further provided with a first buffer cavity 23, the first buffer cavity 23 is communicated with the upper die cavity 22, the first buffer cavity 23 is located between the first overflow cavity 32 and the tail end of the upper die cavity 22, and the active substances sequentially flow through the first overflow cavity 32, the upper die cavity 22, the first buffer cavity 23, the upper die cavity 22 and the upper nozzle 24 and are finally sprayed out through the upper nozzle 24.
A first feed inlet 33 is formed in one side of the middle die 3, and the first feed inlet 33 is communicated with the first overflow cavity 32; the first pump 6 communicates with the first feed opening 33 via a tube, and the active substance is drawn into the first feed opening 33 by the first pump 6, and enters the first overflow chamber 32 from the first feed opening 33.
A plurality of lower gaps 41 are formed in the lower gasket 4 at equal intervals, the upper gaps 21 and the lower gaps 41 are mutually staggered and complementary, namely, the upper gasket 2 and the lower gasket 4 are both comb-shaped, the upper gaps 21 and the lower gaps 41 are mutually staggered, and when the upper gasket 2 and the lower gasket 4 are folded, the upper gaps 21 and the lower gaps 41 can be mutually spliced and combined.
The middle mold 3 and the lower mold 5 respectively surround the upper end and the lower end of the lower notch 41 to form a lower mold cavity 42, a second overflow cavity 51 is formed in the lower mold 5, and the second overflow cavity 51 is communicated with the lower mold cavity 42.
The end of lower cavity 42 forms a lower nozzle 43, and both upper nozzle 24 and lower nozzle 43 are located on the same side of middle mold 3, i.e., both upper nozzle 24 and lower nozzle 43 are located on the side where slope 31 intersects the bottom surface of middle mold 3.
The second overflow cavity 51 is positioned at the upper end of the lower die 5, the upper end of the lower die 5 is also provided with a second buffer cavity 52, the second buffer cavity 52 is communicated with the lower die cavity 42, the second buffer cavity 52 is positioned between the second overflow cavity 51 and the tail end of the lower die cavity 42, and the active substance sequentially flows through the second overflow cavity 51, the lower die cavity 42, the second buffer cavity 52, the lower die cavity 42 and the lower nozzle 43 and is finally sprayed out through the lower nozzle 43.
A second feed inlet 53 is formed in one side of the lower die 5, the second feed inlet 53 is communicated with the second overflow cavity 51, the second pump 7 is communicated with the second feed inlet 53 through a pipe, when the first pump 6 works, the second pump 7 pumps active substances into the second feed inlet 53, and the active substances enter the second overflow cavity 51 from the second feed inlet 53.
The upper nozzle 24 and the lower nozzle 43 are simultaneously matched with the driving roller 8, the driving roller 8 is positioned on one side of the upper nozzle 24, one end of a coiled current collector is pulled out and wound on the driving roller 8, the current collector is driven to rotate at a constant speed when the driving roller 8 rolls, the upper nozzle 24 and the lower nozzle 43 are correspondingly staggered and complemented because the upper notch 21 and the lower notch 41 are staggered and complemented with each other, and when the upper nozzle 24 and the lower nozzle 43 simultaneously spray active substances, the active substances can be completely covered on one surface of the current collector.
An adjusting groove 11 is formed in one side, close to the upper nozzle 24, of the upper die 1, a pivoting hole is formed in the upper eave of the adjusting groove 11, an adjusting screw penetrates through the pivoting hole, a screw hole is correspondingly formed in the lower end of the adjusting groove 11, the lower end of the adjusting screw is screwed in the screw hole, the adjusting screw is screwed, the width of the upper nozzle 24 can be correspondingly adjusted, and therefore the coating density can be adjusted.
The term "double gap" in the name of the present invention refers to the upper and lower cavities 22 and 42, and "multiple gaps" refers to a plurality of blank areas formed during the coating of the active material on the current collector.
The working principle of the invention is as follows: one end of the current collector which is wound into a roll is pulled out and wound on the driving roller 8, and the current collector is driven to rotate at a constant speed when the driving roller 8 rolls; active substances are pumped into the first feed port 33 through the first pump 6, sequentially flow through the first overflow cavity 32, the upper die cavity 22, the first buffer cavity 23, the upper die cavity 22 and the upper nozzle 24, and are finally sprayed onto the front surface of the current collector through the upper nozzle 24; when the first pump 6 works, the second pump 7 pumps active substances into the second feed port 53, and the active substances sequentially flow through the second overflow cavity 51, the lower die cavity 42, the second buffer cavity 52, the lower die cavity 42 and the lower nozzle 43 and are finally sprayed onto the front surface of the current collector through the lower nozzle 43; because the upper notches 21 and the lower notches 41 are mutually staggered and complementary, the upper nozzles 24 and the lower nozzles 43 are correspondingly staggered and complementary, so that the active substances completely cover the front surface of the current collector; the second pump 7 is paused for 0.5 to 1 second at regular intervals according to the requirement (the fixed time is determined according to the length of the finished product current collector), and the lower nozzle 43 correspondingly pauses to spray active substances within 0.5 to 1 second, so that a discontinuous white exposure area is formed on the front surface of the current collector, and the tab welding is facilitated; completely coating the back surface of the current collector with active substances according to the mode; and cutting the coiled current collector into single current collectors to obtain finished products.
The invention also provides a preparation method of the battery pole piece double-gap multi-gap and multi-tab, which comprises the preparation device of the battery pole piece double-gap multi-gap and multi-tab, and comprises the following steps:
one end of a current collector wound into a roll is pulled out and wound on a driving roller 8, and the current collector is driven to rotate at a constant speed when the driving roller 8 rolls;
secondly, active substances are pumped into the first feed port 33 through the first pump 6, sequentially flow through the first overflow cavity 32, the upper die cavity 22, the first buffer cavity 23, the upper die cavity 22 and the upper nozzle 24, and are finally sprayed onto the front surface of the current collector through the upper nozzle 24;
step three, when the first pump 6 works, the second pump 7 pumps active substances into the second feed port 53, and the active substances sequentially flow through the second overflow cavity 51, the lower die cavity 42, the second buffer cavity 52, the lower die cavity 42 and the lower nozzle 43 and are finally sprayed onto the front surface of the current collector through the lower nozzle 43; because the upper notches 21 and the lower notches 41 are mutually staggered and complementary, the upper nozzles 24 and the lower nozzles 43 are correspondingly staggered and complementary, so that the active substances completely cover the front surface of the current collector;
step four, the second pump 7 is paused for 0.5 second every fixed time (the fixed time is determined according to the length of the finished product current collector) according to the requirement, and the lower nozzle 43 correspondingly pauses to spray active substances within 0.5 second, so that a discontinuous white exposure area is formed on the front surface of the current collector, and the tab welding is facilitated;
step five, repeating the step one to the step three, and completely coating the back surface of the current collector with active substances;
and step six, cutting the coiled current collector into single current collectors to obtain finished products.
The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are still within the technical scope of the present invention.
Claims (10)
1. The utility model provides a preparation facilities of many clearances of battery sheet double gap and many utmost points ear which characterized in that: comprises an upper die, an upper gasket, a middle die, a lower gasket and a lower die which are fixedly arranged from top to bottom in sequence,
a plurality of upper notches are formed in the upper gasket at equal intervals, the upper die and the middle die are respectively enclosed at the upper end and the lower end of the upper notches to form an upper die cavity, a first overflow cavity is formed in the middle die, and the first overflow cavity is communicated with the upper die cavity;
a plurality of lower breach have been seted up to the equidistance on the lower gasket, go up breach and lower breach crisscross complementary each other, well mould and lower mould enclose respectively in the upper and lower end of breach down to form die cavity down, the second overflow chamber has been seted up on the lower mould, and second overflow chamber and lower die cavity intercommunication.
2. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 1, is characterized in that: an inclined plane is formed at the upper end of the middle die, the upper die is fixedly arranged on the inclined plane, and the upper gasket is fixedly arranged between the upper die and the inclined plane.
3. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 2, is characterized in that: the first overflow cavity is located at the upper end of the inclined plane, a first buffer cavity is further formed in the inclined plane and communicated with the upper die cavity, and the first buffer cavity is located between the first overflow cavity and the tail end of the upper die cavity.
4. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 1, is characterized in that: the second overflow chamber is located the lower mould upper end, the second cushion chamber has still been seted up to the lower mould upper end, second cushion chamber and lower mould chamber intercommunication, and the second cushion chamber is located between the end of second overflow chamber and lower die cavity.
5. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 1, is characterized in that: a first feed inlet is formed in one side of the middle die and is communicated with the first overflow cavity; a second feed inlet is formed in one side of the lower die, and the second feed inlet is communicated with the second overflow cavity.
6. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 5, is characterized in that: still include first pump and second pump, first pump is through managing pipe and first feed inlet intercommunication, the second pump is through managing pipe and second feed inlet intercommunication.
7. The device for preparing the battery pole piece double-gap multi-gap and multi-tab according to any one of claims 1 to 6, wherein: the tail end of the upper die cavity forms an upper nozzle, the tail end of the lower die cavity forms a lower nozzle, and the upper nozzle and the lower nozzle are both positioned on the same side of the middle die.
8. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 7, is characterized in that: the automatic feeding device also comprises a driving roller, and the upper nozzle and the lower nozzle are matched with the driving roller simultaneously.
9. The device for preparing the battery pole piece with double gaps, multiple gaps and multiple tabs according to claim 7, is characterized in that: and one side of the upper die, which is close to the upper nozzle, is provided with an adjusting groove.
10. A preparation method of battery pole piece double-gap multi-gap and multi-tab comprises the preparation device of the battery pole piece double-gap multi-gap and multi-tab, and is characterized in that: the method comprises the following steps:
one end of a current collector wound into a roll is pulled out and wound on a driving roller, and the current collector is driven to rotate at a constant speed when the driving roller rolls;
pumping active substances into the first feed port through a first pump, wherein the active substances sequentially flow through a first overflow cavity, an upper die cavity, a first buffer cavity, an upper die cavity and an upper nozzle and are finally sprayed onto the front surface of the current collector through the upper nozzle;
step three, when the first pump works, the second pump pumps active substances into the second feed port, and the active substances sequentially flow through the second overflow cavity, the lower die cavity, the second buffer cavity, the lower die cavity and the lower nozzle and are finally sprayed onto the front surface of the current collector through the lower nozzle; the upper notches and the lower notches are mutually staggered and complemented, and the upper nozzle and the lower nozzle are correspondingly staggered and complemented, so that the active substances are completely covered on the front surface of the current collector;
step four, pausing the second pump for 0.5 second at fixed intervals according to requirements, and pausing the ejection of active substances by the lower nozzle within 0.5 second correspondingly, so that a discontinuous white exposure area is formed on the front surface of the current collector, and the welding of a tab is facilitated;
step five, repeating the step one to the step three, and completely coating the back surface of the current collector with active substances;
and step six, cutting the coiled current collector into single current collectors to obtain finished products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922227.1A CN113675361A (en) | 2021-08-12 | 2021-08-12 | Device and method for preparing double-gap multi-gap and multi-tab of battery pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922227.1A CN113675361A (en) | 2021-08-12 | 2021-08-12 | Device and method for preparing double-gap multi-gap and multi-tab of battery pole piece |
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| Publication Number | Publication Date |
|---|---|
| CN113675361A true CN113675361A (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110922227.1A Withdrawn CN113675361A (en) | 2021-08-12 | 2021-08-12 | Device and method for preparing double-gap multi-gap and multi-tab of battery pole piece |
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| Country | Link |
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| CN (1) | CN113675361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577451A (en) * | 2024-01-16 | 2024-02-20 | 常州嘉容电子有限公司 | Slurry for aluminum capacitor production, production method of aluminum electrolytic capacitor and nozzle |
| WO2024073928A1 (en) * | 2022-10-08 | 2024-04-11 | 宁德时代新能源科技股份有限公司 | Coating die head and coating device |
-
2021
- 2021-08-12 CN CN202110922227.1A patent/CN113675361A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024073928A1 (en) * | 2022-10-08 | 2024-04-11 | 宁德时代新能源科技股份有限公司 | Coating die head and coating device |
| CN117577451A (en) * | 2024-01-16 | 2024-02-20 | 常州嘉容电子有限公司 | Slurry for aluminum capacitor production, production method of aluminum electrolytic capacitor and nozzle |
| CN117577451B (en) * | 2024-01-16 | 2024-04-05 | 常州嘉容电子有限公司 | Slurry for aluminum capacitor production, production method of aluminum electrolytic capacitor and nozzle |
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Application publication date: 20211119 |
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