CN218329162U - Laser dodging baking device for battery pole piece - Google Patents
Laser dodging baking device for battery pole piece Download PDFInfo
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- CN218329162U CN218329162U CN202222429604.0U CN202222429604U CN218329162U CN 218329162 U CN218329162 U CN 218329162U CN 202222429604 U CN202222429604 U CN 202222429604U CN 218329162 U CN218329162 U CN 218329162U
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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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Abstract
The utility model relates to a laser even light baking equipment for battery sheet, contain continuous laser, the even optical system of laser, a rolling machine for providing the unreeling machine of waiting to toast the pole piece and being used for toasting the rolling of back pole piece, unreel machine and rolling machine are a left-right side and arrange, the pole piece tensioning is between unreeling machine and rolling machine, the even optical system of laser is located the pole piece top and towards the pole piece, continuous laser passes through optic fibre and the even optical system of laser and links to each other, one side of the even optical system of laser is equipped with infrared temperature measuring device, the even optical system of laser is installed on Z axle elevating system. Adopt the even optical system of laser of big breadth, become even facula with the gaussian facula of laser, infrared temperature measuring device carries out the temperature measurement to the heating region, and the heating region temperature is even, and laser energy is concentrated, and the programming rate is high, only carries out the selectivity heating to required heating region, and energy utilization is rateed highly, avoids the pole piece edge to appear the problem of toasting and splitting or curling and wrinkling because of the heating degree difference.
Description
Technical Field
The utility model relates to a laser dodging baking equipment for battery sheet.
Background
The new energy lithium battery mainly comprises a shell and an electrode assembly arranged in the shell, wherein the electrode assembly comprises two pole pieces with opposite polarities and a diaphragm, and the pole pieces play a key role in various performances of the battery and directly determine the quality of the battery. In the production process of the pole piece, the pole piece needs to be baked, so that the moisture of the pole piece is reduced to be within the range of the process requirement.
At present, the pole piece toasts the technique and mainly lets in high-temperature gas toasts the pole piece in toasting the incasement, because the temperature is inhomogeneous in toasting the incasement, and the pole piece edge is toasted easily because of the different easy cracks of degree of heating or is curled and corrugates, causes the pole piece to scrap, and the yields reduces, and high-temperature gas need be full of whole toasts the case and need often discharge and take away moisture simultaneously, leads to energy utilization to be lower, and manufacturing cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects in the prior art and providing a laser dodging baking device for a battery pole piece.
The purpose of the utility model is realized through the following technical scheme:
a even light baking equipment of laser for battery sheet, characteristics are: contain continuous laser, the even optical system of laser, be used for providing the unreeling machine of waiting to toast the pole piece and be used for the rolling machine to toasting the back pole piece rolling, unreel machine and rolling machine and be a left right side and arrange, the pole piece tensioning is between unreeling machine and rolling machine, the even optical system of laser is located the pole piece top and towards the pole piece, continuous laser passes through optic fibre and links to each other with the even optical system of laser, one side of the even optical system of laser is equipped with infrared temperature measuring device, the even optical system of laser is installed on Z axle elevating system.
Further, in the laser dodging baking device for the battery pole piece, a first supporting roller and a second supporting roller for tensioning the pole piece are arranged between the unreeling machine and the reeling machine.
Further, according to the laser dodging baking device for the battery pole piece, the first supporting roller and the second supporting roller are at the same horizontal height, and the upper working face of the first supporting roller and the second supporting roller is higher than the lower working faces of the unreeling machine and the reeling machine.
Further, the laser dodging baking device for the battery pole piece is characterized in that the continuous laser is a laser with the wavelength of 700-1500 nm and the power of 1000-30000W.
Further, the laser dodging baking device for the battery pole piece is characterized in that the breadth of the laser dodging system is 50 x 50mm 2 ～3000×3000mm 2 The dodging system of (1).
Further, in the laser dodging baking device for the battery pole piece, the laser dodging system comprises a collimation module, a dodging module and a light projection module which are sequentially arranged along a light path; the laser dodging system (7) has two sets, and is arranged in a left-right mode or in an upper-lower mode.
Further, the laser dodging baking device for the battery pole piece is characterized in that the continuous laser, the Z-axis lifting mechanism, the infrared temperature measuring device, the unreeling machine and the reeling machine are connected with the control system through signal lines.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, the concrete embodiment is in following aspect:
(1) the device has simple and reliable structure, small energy loss and low energy consumption; the large-format laser dodging system is adopted to change Gaussian spots of laser into rectangular dodging spots, meanwhile, an infrared temperature measuring device is adopted to measure the temperature of a heating area, negative feedback adjustment is adopted to realize accurate monitoring and control of the temperature, the temperature of the heating area is uniform, selective heating is only carried out on the required heating area, the energy utilization rate is high, and the problem that the edges of pole pieces are cracked or curled and wrinkled due to different heating degrees is avoided;
(2) the high-energy laser beam is adopted to heat and dry the pole piece, the laser energy is concentrated, the heating rate is high, and the heating is rapid;
(3) the device can be used for both dynamic heating and static heating, and is suitable for different production process beats.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1: the structure of the device of the utility model is schematic;
FIG. 2 is a schematic diagram: the device structure of the embodiment 2 is schematic;
FIG. 3: the device structure of embodiment 3 is schematically shown.
The meanings of the reference symbols in the figures are given in the following table:
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the directional terms and the sequence terms and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the laser dodging baking device for the battery pole piece comprises a continuous laser 5, a laser dodging system 7, an unreeling machine 1 for providing the pole piece to be baked and a reeling machine 2 for reeling the baked pole piece, wherein the unreeling machine 1 and the reeling machine 2 are arranged in a left-right manner, the pole piece 9 is tensioned between the unreeling machine 1 and the reeling machine 2, the laser dodging system 7 is positioned above the pole piece 9 and faces the pole piece 9, the continuous laser 5 is connected with the laser dodging system 7 through an optical fiber 6, an infrared temperature measuring device 8 is arranged on one side of the laser dodging system 7, and the laser dodging system 7 is installed on a Z-axis lifting mechanism.
A first supporting roller 3 and a second supporting roller 4 for tensioning a pole piece 9 are arranged between the unreeling machine 1 and the reeling machine 2; the first supporting roller 3 and the second supporting roller 4 are at the same horizontal height, and the upper working face of the first supporting roller is higher than the lower working faces of the unreeling machine 1 and the reeling machine 2.
The continuous laser 5 is a fiber laser with a wavelength of 700-1500 nm and a power of 1000-30000W, and includes, but is not limited to, other lasers such as a semiconductor laser and a gas laser.
The laser dodging system 7 adopts a breadth of 50 multiplied by 50mm 2 ～3000×3000mm 2 The dodging system of (1); the device specifically comprises a collimation module, a light homogenizing module and a light projecting module which are sequentially arranged along a light path.
The continuous laser 5, the Z-axis lifting mechanism, the infrared temperature measuring device 8, the unreeling machine 1 and the reeling machine 2 are all connected with a control system through signal lines.
The infrared temperature measuring device 8 can be independently arranged with the laser dodging system to carry out different-axis temperature measurement, and can also be combined with the laser dodging system to carry out coaxial temperature measurement.
When the continuous laser device is applied specifically, a laser beam of a Gaussian spot is output by the continuous laser device 5 and is transmitted to the laser dodging system 7 through the optical fiber 6, the laser dodging system 7 shapes the laser beam from the Gaussian spot into a rectangular dodging spot with breadth and irradiates on the pole piece 9, the temperature rise time is controlled to be 0.1-5 s, and the heat preservation time is controlled to be 0.1-60 s; the winding machine 2 operates, the pole piece is paid out from the unreeling machine 1 and passes through the supporting roller I3 and the supporting roller II 4, the pole piece is wound by the winding machine 2, the pole piece 9 passes through a processing position where a region to be heated reaches the laser dodging system 7, and the pole piece 9 is rapidly heated to evaporate water. The area to be heated and the area heated are slightly overlapped, and the process is repeated.
Two heating modes are provided for the pole piece, one is dynamic heating, namely, the continuous laser 5 is normally opened in the heating process, and the pole piece passes through the heating area; the other is static heating, namely, the pole piece is static in the heating process, and after the heating is finished, the pole piece runs to heat the next area.
The control system is in control connection with the continuous laser 5, the Z-axis lifting mechanism, the infrared temperature measuring device 8, the unreeling machine 1 and the reeling machine 2, controls the on-off light and laser power adjustment of the continuous laser 5, controls the lifting motion of the Z-axis of the laser dodging system 7 in the vertical direction, enables the pole piece in the heating area to be positioned at the focus position of a laser beam, and controls the rotating speed of the reeling machine; the infrared temperature measuring device 8 carries out non-contact measurement of temperature, transmits real-time temperature data to the control system, and the control system adjusts laser power according to real-time temperature, forms closed-loop control, realizes the accurate control of temperature.
The first supporting roller 3 and the second supporting roller 4 are at the same horizontal height, and the first supporting roller 3 and the second supporting roller 4 are used for tensioning the pole piece, so that the pole piece is kept in a tensioning state and a horizontal state when passing through a heating region of the laser dodging system.
Example 1
In the production process, the continuous laser 5 keeps a light emitting state, the pole piece 9 always moves rightwards under the operation of the winding machine 2, and the movement speed is controlled to be 0.5-3 m/s.
Example 2
As shown in fig. 2, the two sets of laser dodging systems 7 are arranged in a left-right mode, and the two sets of laser dodging systems 7 are used in combination, so that the heating area is increased, the movement speed of the pole piece 9 is increased, the production beat is accelerated, and the efficiency is greatly improved.
Example 3
As shown in fig. 3, there are two sets of laser dodging systems 7, and the two sets of laser dodging systems 7 are arranged one above the other, so that the heating rate is increased, and the temperatures of the upper surface and the lower surface of the pole piece are uniform.
Adopt the even optical system of laser of big breadth, become the even facula of rectangle with the gaussian facula of laser, adopt infrared temperature measuring device to carry out the temperature measurement to the heating region simultaneously, realize the even target of heating region temperature, laser energy concentrates, and the programming rate is high, only carries out selective heating to required heating region, and energy utilization is rateed highly, avoids the pole piece edge to appear the problem that the roast splits or curl and corrugate because of the heating degree is different.
In summary, the utility model has novel design, simple and reliable device structure, small energy loss and low energy consumption; the high-energy laser beam is adopted to heat the pole piece to realize drying, the heating rate is high, and the heating is rapid; the laser dodging system realizes the uniformity of light spots and ensures the temperature uniformity of a heating area; the infrared temperature measuring device carries out negative feedback regulation and accurate temperature monitoring and control; the device can be used for both dynamic heating and static heating, and is suitable for different production process beats.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. A even light baking equipment of laser for battery sheet, its characterized in that: contain continuous laser (5), even optical system (7) of laser, be used for providing the unreeling machine (1) of waiting to toast the pole piece and be used for the rolling machine (2) to toasting the rolling of back pole piece, unreeling machine (1) is a left side right side with rolling machine (2) and arranges, pole piece (9) tensioning is between unreeling machine (1) and rolling machine (2), even optical system (7) of laser are located pole piece (9) top and towards pole piece (9), continuous laser (5) link to each other with even optical system (7) of laser through optic fibre (6), one side of even optical system of laser (7) is equipped with infrared temperature measuring device (8), even optical system of laser (7) are installed on Z axle elevating system.
2. The laser dodging baking device for the battery pole piece according to claim 1, characterized in that: a first supporting roller (3) and a second supporting roller (4) used for tensioning the pole piece (9) are arranged between the unreeling machine (1) and the reeling machine (2).
3. The laser dodging baking device for the battery pole piece according to claim 2, characterized in that: the first supporting roller (3) and the second supporting roller (4) are at the same horizontal height, and the upper working face of the first supporting roller is higher than the lower working faces of the unreeling machine (1) and the reeling machine (2).
4. The laser dodging baking device for the battery pole piece according to claim 1, characterized in that: the continuous laser (5) has the wavelength of 700-1500 nm and the power of 1000-30000W.
5. The laser dodging baking device for the battery pole piece according to claim 1, characterized in that: the laser dodging system (7) adopts a breadth of 50 multiplied by 50mm 2 ～3000×3000mm 2 The dodging system of (1).
6. The laser dodging baking device for the battery pole piece according to claim 1 or 5, characterized in that: the laser dodging system (7) comprises a collimation module, a dodging module and a light projection module which are sequentially arranged along a light path; the laser dodging system (7) has two sets, and is arranged in a left-right mode or in an upper-lower mode.
7. The laser dodging baking device for the battery pole piece according to claim 1, characterized in that: the continuous laser (5), the Z-axis lifting mechanism, the infrared temperature measuring device (8), the unreeling machine (1) and the reeling machine (2) are all connected with a control system through signal lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429604.0U CN218329162U (en) | 2022-09-14 | 2022-09-14 | Laser dodging baking device for battery pole piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429604.0U CN218329162U (en) | 2022-09-14 | 2022-09-14 | Laser dodging baking device for battery pole piece |
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| CN218329162U true CN218329162U (en) | 2023-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451681A (en) * | 2022-09-14 | 2022-12-09 | 苏州德龙激光股份有限公司 | Laser dodging baking device and method for battery pole piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451681A (en) * | 2022-09-14 | 2022-12-09 | 苏州德龙激光股份有限公司 | Laser dodging baking device and method for battery pole piece |
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