CN209926726U - Battery pole piece drying device and battery pole piece production equipment - Google Patents
Battery pole piece drying device and battery pole piece production equipment Download PDFInfo
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- CN209926726U CN209926726U CN201920260744.5U CN201920260744U CN209926726U CN 209926726 U CN209926726 U CN 209926726U CN 201920260744 U CN201920260744 U CN 201920260744U CN 209926726 U CN209926726 U CN 209926726U
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- pole piece
- battery pole
- drying device
- electromagnetic heating
- battery
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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
Abstract
The utility model relates to the technical field of battery preparation, and provides a battery pole piece drying device and battery pole piece production equipment, wherein the battery pole piece drying device (1) comprises a shell (10) and an electromagnetic heating mechanism; wherein: an inlet and an outlet for the battery pole piece (12) to enter and leave are formed in the shell (10); the electromagnetic heating mechanism is installed in the shell (10), and the electromagnetic heating mechanism is configured to be capable of releasing electromagnetic waves and irradiating the battery pole piece (12) to heat the battery pole piece (12). The drying device for the battery pole piece can effectively remove moisture in the battery pole piece in an online mode in a short time. By arranging the battery pole piece drying device on the battery pole piece production equipment, the moisture in the battery pole piece can be effectively removed when the battery pole piece is produced on line.
Description
Technical Field
The utility model relates to a battery preparation technical field, in particular to battery pole piece drying device and battery pole piece production facility.
Background
In the case of lithium batteries, moisture affects the performance of lithium batteries in many ways, for example, the capacity, internal resistance, internal pressure, self-discharge, power density, cycle life, charge-discharge rate, safety, consistency, and other indicators. Too high moisture can lead to reduced battery performance and can also lead to battery swelling, spontaneous combustion, even explosion, and the like. For power batteries with higher requirements on consistency and safety, excessive moisture is not acceptable.
At present, in the preparation process of the battery, a baking device such as an oven is usually selected to bake the battery pole piece to remove the moisture in the battery pole piece. However, the above method usually results in too long water removal time and uneven water removal, which affects the safety performance of the battery, and also requires a large amount of equipment, occupies a large space, and increases the production cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a battery pole piece drying device to effectively get rid of the moisture in the battery pole piece in the short time in online mode.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a battery pole piece drying device which characterized in that, battery pole piece drying device includes:
the battery pole piece feeding device comprises a shell, wherein an inlet and an outlet for the battery pole piece to enter and leave are formed in the shell; and
an electromagnetic heating mechanism mounted within the housing and configured to release electromagnetic waves and impinge on the battery pole piece to heat the battery pole piece.
Furthermore, electromagnetic heating mechanism includes two electromagnetic heating assemblies, two electromagnetic heating assembly sets up relatively and leaves between each other and is equipped with the confession the clearance that battery pole piece passed through, every electromagnetic heating assembly includes along a plurality of electromagnetic heating pipe of the advancing direction interval arrangement of battery pole piece.
Further, a plurality of electromagnetic heating pipes in each electromagnetic heating assembly are arranged side by side.
Further, the distance between the electromagnetic heating components is 50mm-200 mm; and/or the length of the shell along the advancing direction of the battery pole piece is 800mm-2000 mm.
Further, the electromagnetic heating pipe comprises an infrared heating pipe.
Furthermore, the battery pole piece drying device comprises a temperature sensor which is arranged outside the shell and connected with the electromagnetic heating pipe.
Furthermore, the shell is provided with a mounting opening;
the battery pole piece drying device comprises an exhaust fan arranged at the mounting opening.
Further, battery pole piece drying device includes supporting mechanism, supporting mechanism including set up in the first backup roll of import department with set up in the second backup roll of exit, first backup roll with the second backup roll supports jointly and conveys battery pole piece passes through two reserve the interval of establishing between the electromagnetic heating subassembly.
The electromagnetic heating mechanism is arranged in the shell and is configured to release electromagnetic waves and irradiate the electromagnetic waves on the battery pole piece, so that the battery pole piece entering the shell can be heated, and the aim of quickly drying the battery pole piece is fulfilled. The battery pole piece can be heated by infrared rays, that is, the electromagnetic heating mechanism can comprise an infrared heating mechanism. Because the electromagnetic heating mechanism can be heated to a higher temperature in a short time, the battery pole piece can be heated quickly in a short time, and the moisture in the dried battery pole piece can be kept at a relatively low amount.
Another object of the utility model is to provide a battery pole piece production facility to just can effectively get rid of the moisture in the battery pole piece when the on-line production battery pole piece.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a battery pole piece production facility, be provided with in the battery pole piece production facility the utility model provides a battery pole piece drying device. Through be provided with in the battery pole piece production facility the utility model provides a battery pole piece drying device to can carry out rapid heating to on-line production's battery pole piece, effectively get rid of the moisture in the battery pole piece in the short time, like this, both guaranteed the normal production of battery pole piece, can make the moisture in the battery pole piece keep at lower level again.
Furthermore, the battery pole piece production equipment comprises a rolling unit capable of compacting the battery pole piece, and the battery pole piece drying device is arranged at the downstream of the rolling unit.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of the overall structure of a battery pole piece drying device according to an embodiment of the present invention;
fig. 2 is the overall structure schematic diagram of the battery pole piece drying device in the use state according to the embodiment of the present invention.
Description of reference numerals:
1-a battery pole piece drying device; 10-a housing; 12-a battery pole piece; 14-an electromagnetic heating assembly; 142-an electromagnetic heating pipe; 16-exhaust fan; 18-a support mechanism; 180-a first support roller; 182-a second support roller; 20-an unwinding mechanism; 22-winding mechanism.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
In addition, in the embodiments of the present invention, the terms "upper, lower, left, and right" are generally used to refer to the inner and outer of the outline of the component in consideration of the orientation shown in the drawings and the orientation in practical use.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a battery pole piece drying device, battery pole piece drying device 1 include casing 10 and electromagnetic heating mechanism. Wherein, the shell 10 is provided with an inlet and an outlet for the battery pole piece 12 to enter and leave; the electromagnetic heating mechanism is installed in the housing 10, and the electromagnetic heating mechanism is configured to be able to release electromagnetic waves and irradiate onto the battery pole piece 12 to heat the battery pole piece 12. The electromagnetic heating mechanism is arranged in the shell 10 and configured to release electromagnetic waves and irradiate the electromagnetic heating mechanism on the battery pole piece 12, so that the battery pole piece 12 entering the shell 10 can be heated, and the aim of rapidly drying the battery pole piece 12 is fulfilled. Wherein, the battery pole piece 12 can be heated by infrared ray, that is, the electromagnetic heating mechanism can include an infrared heating mechanism. Since the electromagnetic heating mechanism can be raised to a high temperature in a short time, the battery pole piece 12 can be heated quickly in a short time, and the moisture in the dried battery pole piece 12 can be kept at a relatively low amount.
It can be understood that, because the battery pole piece drying device 1 can rapidly heat the battery pole piece 12 in a short time and keep the moisture in the battery pole piece 12 at a relatively low amount, the battery pole piece drying device 1 can be set on line, for example, the battery pole piece compacted by the rolling unit can firstly enter the battery pole piece drying device 1 to be dried and then enter the next procedure such as a thickness measuring procedure, thus, compared with the procedure of preparing the battery pole piece, the battery pole piece is put into a drying device such as a hot air drying box in the form of a sheet or a roll to be dried, which not only improves the production efficiency, but also does not need to set a large amount of drying devices, saves space and reduces the production cost. In addition, a large number of drying devices are provided, so that maintenance and repair processes are more frequent.
The electromagnetic heating mechanism may include two electromagnetic heating assemblies 14, the two electromagnetic heating assemblies 14 may be disposed opposite to each other and may leave a gap between each other for the battery pole piece 12 to pass through, each electromagnetic heating assembly 14 may include a plurality of electromagnetic heating pipes 142 arranged at intervals along the traveling direction of the battery pole piece 12, and after the battery pole piece 12 passes through the gap between the two electromagnetic heating assemblies 14, each electromagnetic heating assembly 14 may heat the corresponding surface of the battery pole piece 12 to remove moisture in the battery pole piece 12. From the orientation shown in fig. 1, two electromagnetic heating assemblies 14 may be disposed along the height direction of the housing 10, and the two electromagnetic heating assemblies 14 are disposed opposite to each other and spaced apart from each other, so that the battery pole piece 12 entering from the inlet passes through the gap between the two electromagnetic heating assemblies 14 and then exits from the outlet. It should be noted that the inlet and the outlet may be disposed opposite to each other, and the inlet and the outlet are disposed on two sides of a gap between the two electromagnetic heating assemblies 14, respectively, so as to facilitate the entrance and exit of the battery pole piece 12. The electromagnetic heating tube 142 may include an infrared heating tube, that is, the battery pole piece 12 may be heated by infrared rays, so that the battery pole piece 12 is heated to a higher temperature in a shorter time, and thus, moisture in the battery pole piece 12 is effectively removed. In addition, the number of the electromagnetic heating pipes 142 is not particularly limited, and may be selected according to actual requirements.
For better heating of the battery pole piece 12, a plurality of electromagnetic heating pipes 142 in each electromagnetic heating assembly 14 may be arranged side by side. Wherein, can set for 50mm-200mm with the interval between the electromagnetic heating subassembly 14, like this, compromise and set up the size of whole battery pole piece drying device 1 in reasonable scope and make electromagnetic heating subassembly 14 can carry out better heating to battery pole piece 12. In addition, the length of the shell 10 in the advancing direction of the battery pole piece 12 is preferably 800mm-2000mm, and the length of the shell 10 in the advancing direction of the battery pole piece 12 is set in the range, so that the overall size of the battery pole piece drying device 1 is more reasonable, and the online arrangement is more facilitated.
It should be noted that, when the battery pole piece 12 is heated by infrared, i.e. by selecting an infrared heating tube, the temperature of the infrared heating tube can be raised to 2000 ℃ within 30 seconds, even if the battery pole piece 12 passes through the gap reserved between the two electromagnetic heating assemblies 14 quickly, if it takes only several seconds (e.g. 3 seconds), the battery pole piece 12 can be heated quickly and effectively, and the moisture in the battery pole piece 12 after being heated and dried is about 450 plus 550 ppm. The drying temperature of the common vacuum hot air drying oven is approximately controlled at 100 ℃, the battery pole piece placed in the common vacuum hot air drying oven needs to be baked for 6-8 hours, and the moisture in the heated and dried battery pole piece is about 650ppm through detection. Additionally, the utility model provides a battery pole piece drying device 1 can set up on line, and not only easy operation is convenient, and maintenance is also comparatively simple moreover.
In addition, a temperature sensor connected to the electromagnetic heating pipe 142 may be disposed outside the casing 10 to better control the temperature of the electromagnetic heating pipe 142, so that the battery heating pipe 142 is heated to a proper temperature.
In order to discharge the heat in the casing 10 in time, a mounting opening may be formed in the casing 10, and an exhaust fan 16 may be disposed at the mounting opening.
As shown in fig. 1, a support mechanism 18 may be provided for supporting the battery pole piece 12 and transporting the battery pole piece 12 through the gap between the two electromagnetic heating assemblies 14, it being understood that the support mechanism 18 may levitate the battery pole piece 12 through the gap between the two electromagnetic heating assemblies 14. Preferably, the supporting mechanism 18 may include a first supporting roller 180 disposed at the inlet and a second supporting roller 182 disposed at the outlet, the first supporting roller 180 and the second supporting roller 182 jointly supporting and conveying the battery pole piece 12 through the space left between the two electromagnetic heating assemblies 14, thereby the two faces of the battery pole piece 12 are better heated by the respective electromagnetic heating assemblies 14.
The utility model also provides a battery pole piece production facility, be provided with in the battery pole piece production facility the utility model provides a battery pole piece drying device 1. Through be provided with in the battery pole piece production facility the utility model provides a battery pole piece drying device 1 to can carry out rapid heating to the battery pole piece of on-line production, effectively get rid of the moisture in the battery pole piece in the short time, like this, both guaranteed the normal production of battery pole piece, can make the moisture in the battery pole piece keep at lower level again.
It can be understood that the battery pole piece production equipment comprises a rolling unit capable of compacting the battery pole piece 12, the battery pole piece drying device 1 can be arranged at the upstream of the rolling unit, the battery pole piece drying device 1 can also be arranged at the downstream of the rolling unit, and preferably, the battery pole piece drying device 1 can be arranged at the downstream of the rolling unit to more effectively remove moisture in the battery pole piece 12. In addition, it should be noted that the battery pole piece production apparatus includes a thickness measuring unit located downstream of the rolling unit, whereby the battery pole piece drying device 1 can be disposed between the rolling unit and the thickness measuring unit. As shown in fig. 2, an unwinding mechanism 20 may be disposed upstream of the rolling unit (not shown) and a winding mechanism 22 may be disposed downstream of the thickness measuring unit (not shown). Therefore, through research of the inventor, in order to effectively remove moisture in the battery pole piece 12, one battery pole piece drying device 1 can be arranged between the unreeling mechanism 20 and the rolling unit, and another battery pole piece drying device 1 can be arranged between the rolling unit and the thickness measuring unit.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery pole piece drying device, characterized in that, battery pole piece drying device (1) includes:
the battery pole piece protection device comprises a shell (10), wherein an inlet and an outlet for the battery pole piece (12) to enter and leave are formed in the shell (10); and
an electromagnetic heating mechanism mounted within the housing (10) and configured to be capable of releasing electromagnetic waves and impinging on the battery pole piece (12) to heat the battery pole piece (12).
2. The battery pole piece drying device according to claim 1, wherein the electromagnetic heating mechanism comprises two electromagnetic heating assemblies (14), the two electromagnetic heating assemblies (14) are arranged oppositely and leave a gap for the battery pole piece (12) to pass through, and each electromagnetic heating assembly (14) comprises a plurality of electromagnetic heating pipes (142) arranged at intervals along the traveling direction of the battery pole piece (12).
3. The battery pole piece drying apparatus of claim 2, wherein a plurality of the electromagnetic heating pipes (142) in each electromagnetic heating assembly (14) are arranged side by side.
4. The battery pole piece drying device according to claim 3, wherein the spacing between the electromagnetic heating assemblies (14) is 50mm-200 mm; and/or the length of the shell (10) in the advancing direction of the battery pole piece (12) is 800mm-2000 mm.
5. The battery pole piece drying apparatus of claim 2, wherein the electromagnetic heating tube (142) comprises an infrared heating tube.
6. The battery pole piece drying device according to claim 2, characterized in that the battery pole piece drying device (1) comprises a temperature sensor arranged outside the housing (10) and connected with the electromagnetic heating pipe (142).
7. The battery pole piece drying device according to claim 1, wherein the housing (10) is provided with a mounting opening;
the battery pole piece drying device (1) comprises an exhaust fan (16) arranged at the mounting opening.
8. The battery pole piece drying device according to any one of claims 2 to 6, characterized in that the battery pole piece drying device (1) comprises a supporting mechanism (18), the supporting mechanism (18) comprises a first supporting roller (180) arranged at the inlet and a second supporting roller (182) arranged at the outlet, and the first supporting roller (180) and the second supporting roller (182) jointly support and convey the battery pole piece (12) through the space left between the two electromagnetic heating assemblies (14).
9. A battery pole piece production facility, characterized in that, the battery pole piece production facility is provided with the battery pole piece drying device (1) of any one of claims 1 to 8.
10. The battery pole piece production apparatus according to claim 9, comprising a rolling unit capable of compacting the battery pole pieces (12), the battery pole piece drying device (1) being arranged downstream of the rolling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260744.5U CN209926726U (en) | 2019-02-28 | 2019-02-28 | Battery pole piece drying device and battery pole piece production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260744.5U CN209926726U (en) | 2019-02-28 | 2019-02-28 | Battery pole piece drying device and battery pole piece production equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209926726U true CN209926726U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920260744.5U Active CN209926726U (en) | 2019-02-28 | 2019-02-28 | Battery pole piece drying device and battery pole piece production equipment |
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| Country | Link |
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| CN (1) | CN209926726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790578A (en) * | 2021-10-26 | 2021-12-14 | 湖南省斯盛新能源有限责任公司 | Drying equipment for lithium ion battery pole piece |
| CN114247618A (en) * | 2020-09-21 | 2022-03-29 | 大众汽车股份公司 | Method and apparatus for drying thin film materials |
| CN115722424A (en) * | 2021-08-31 | 2023-03-03 | 宁德时代新能源科技股份有限公司 | Heating device and heating method |
-
2019
- 2019-02-28 CN CN201920260744.5U patent/CN209926726U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247618A (en) * | 2020-09-21 | 2022-03-29 | 大众汽车股份公司 | Method and apparatus for drying thin film materials |
| CN114247618B (en) * | 2020-09-21 | 2023-10-31 | 大众汽车股份公司 | Method and device for drying film material |
| CN115722424A (en) * | 2021-08-31 | 2023-03-03 | 宁德时代新能源科技股份有限公司 | Heating device and heating method |
| CN115722424B (en) * | 2021-08-31 | 2024-03-19 | 宁德时代新能源科技股份有限公司 | Heating device and heating method |
| CN113790578A (en) * | 2021-10-26 | 2021-12-14 | 湖南省斯盛新能源有限责任公司 | Drying equipment for lithium ion battery pole piece |
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