CN113241504A - Full-tab battery roll core flattening device and flattening method - Google Patents
Full-tab battery roll core flattening device and flattening method Download PDFInfo
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- CN113241504A CN113241504A CN202110557853.5A CN202110557853A CN113241504A CN 113241504 A CN113241504 A CN 113241504A CN 202110557853 A CN202110557853 A CN 202110557853A CN 113241504 A CN113241504 A CN 113241504A
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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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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- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The embodiment of the invention provides a flattening device and a flattening method for a full-tab battery winding core. Full utmost point ear battery rolls up core and rubs paper-back edition and puts and include: a battery holding device and a flattening device. The flattening device is movable in a direction towards or away from the battery holding device. The flattening device is provided with a flattening component. The flat-head rubbing component can feed along the radial direction parallel to the pre-pressing flat end face of the full-tab battery roll core. And the battery clamping device and the flattening device can rotate relatively, so that the flattening component can press down the lugs on the full-lug battery roll core one by one from outside to inside. The flat head rubbing component on the flat rubbing device can press down the lugs on the full-lug battery roll core one by one from outside to inside along the radial direction of the pre-pressing flat end surface. The pressing directions of the winding core lugs of the full-lug battery are consistent, the contact effect between the lugs is guaranteed, and the current collecting effect of the full-lug battery is further improved. Should rub flat device and can not shake garrulous utmost point ear, greatly promoted the security of full utmost point ear battery.
Description
Technical Field
The invention relates to the technical field of battery processing, in particular to a full-tab battery roll core flattening device and a flattening method.
Background
In the manufacturing process of the full-tab battery, a tab flattening procedure is required. The pole ear kneading and flattening process is to press down the original upright pole ears so that the pole ears are contacted with each other to achieve better current collection effect. Meanwhile, the rubbed tabs are positioned in the same plane, and the subsequent welding work of the current collecting disc is facilitated.
At present, the lug kneading square mode is mainly divided into a mechanical kneading mode and an ultrasonic kneading mode. Most of the conventional mechanical square kneading methods are methods of kneading and flattening the tabs by means of axial feeding. This mode can lead to the direction that utmost point ear was pressed to be inconsistent, and utmost point ear warp, influences the contact effect of each utmost point ear, and then reduces the mass flow effect. The ultrasonic flattening mode can cause the electrode lug to be shattered, especially the positive aluminum foil, and the entering of fragments into the battery can affect the safety performance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a flattening device and a flattening method for a full-tab battery winding core.
According to a first aspect of the invention, there is provided a full-tab battery roll core flattening device, comprising: a battery holding device and a flattening device.
Wherein the flattening device is movable in a direction towards or away from the battery holding device. The flattening device is provided with a flattening component. The flat-head rubbing component can feed along the radial direction parallel to the pre-pressing flat end face of the full-tab battery roll core. And the battery clamping device and the flattening device can rotate relatively, so that the flattening component can press down the lugs on the full-lug battery roll core one by one from outside to inside.
According to the flattening device for the full-tab battery winding core, which is provided by the invention, the flattening device further comprises a first rotating shaft and a mounting disc. The first rotating shaft is connected with the mounting disc. The flat head rubbing component is installed on the installation plate. The first rotating shaft can drive the mounting disc and the flat head kneading component to rotate.
According to the full-tab battery roll core flattening device provided by the invention, the battery clamping device is provided with the second rotating shaft. The second rotating shaft can drive the battery clamping device to rotate. The flattening device also comprises a mounting disc. The flat head rubbing component is installed on the installation plate.
According to the flattening device for the full-tab battery winding core, which is provided by the invention, the flattening component comprises a connecting frame, a connecting shaft and a flattening head.
Wherein, the link span is connected with the mounting disc. The connecting shaft is connected with the connecting frame. The flat kneading head is connected with the connecting shaft. The connecting frame can drive the connecting shaft and the flat kneading head to feed along the radial direction parallel to the pre-pressing flat end surface.
According to the flattening device for the all-tab battery winding core, provided by the invention, on the flattening head, the flattening end surface in contact with the all-tab battery winding core is parallel to the pre-pressing flat end surface.
According to the flattening device for the full-tab battery winding core, the length of the flattened end surface along the radial direction parallel to the prepressing flat end surface is greater than or equal to the radius of the prepressing flat end surface. And the highest point of the radial feeding of the flat kneading head is the coincident point of the top point of the flat kneading head and the central point of the pre-pressing flat end surface.
According to the full-tab battery roll core flattening device provided by the invention, the connecting shaft can drive the flattening head to rotate along the central axis of the connecting shaft.
According to the flattening device for the full-tab battery winding core, which is provided by the invention, at least one of two sides of the battery clamping device is provided with the flattening device.
According to the flattening device for the full-tab battery winding core, which is provided by the invention, the mounting disc is provided with a plurality of flattening components. Each of the tumbling assemblies is capable of being fed in a radial direction parallel to the pre-pressing flat end face.
According to a second aspect of the invention, a flattening method based on a flattening device of a full-tab battery winding core is provided, and the flattening method comprises the following steps:
clamping the full-tab battery roll core on a battery clamping device;
moving the flattening device along the direction close to the battery clamping device until the flattening end surface of the flattening component is flush with the pre-pressing flat end surface of the full-tab battery winding core;
the flattening device and the battery clamping device rotate relatively;
feeding the flat-kneading component along the radial direction of the prepressing flat end surface to press down and knead the tabs on the end surface of the full-tab battery roll core from outside to inside one by one;
continuously rotating the flattening device and the battery clamping device relatively to keep the pressure of the tab constant and shape;
the flattening device is moved in a direction away from the battery holding device, and the flattening device and the battery holding device stop rotating relatively.
In the full-tab battery winding core flattening device provided by the invention, the flattening device can move along the direction close to the battery clamping device when the tab flattening work is carried out. The flattening assembly on the flattening device can feed along a radial direction parallel to the pre-pressing flat end face of the full-tab battery roll core. And the battery clamping device and the flattening device can rotate relatively, so that the flattening component can press down the lugs on the full-lug battery roll core one by one from outside to inside. After the pole ear is flattened, the flattening device can move in the direction away from the battery clamping device.
Through the structure, the flat-head rubbing component on the flat rubbing device can press down the lugs on the full-lug battery roll core one by one from outside to inside along the radial direction of the pre-pressing flat end surface of the full-lug battery roll core. Therefore, the pressing direction of the core electrode lug of the full-electrode lug battery is consistent, the contact effect between the electrode lugs is guaranteed, and the current collecting effect of the full-electrode lug battery is further improved. Simultaneously, should rub flat device and can not shake garrulous utmost point ear, greatly promoted the security of full utmost point ear battery.
Further, in the flattening method provided by the invention, the lug flattening operation on the full-lug battery roll core is carried out in a radial feeding flattening mode, so that the pressing directions of the lugs of the full-lug battery roll core are consistent, the contact effect among the lugs is ensured, and the current collecting effect of the full-lug battery is further improved. Meanwhile, the kneading and flattening method can not shake and break the tabs, and the safety of the full-tab battery is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a full-tab battery winding core flattening device provided by the invention;
reference numerals:
100: a battery holding device; 200: a flattening device; 201: a flat head rubbing component;
202: a connecting frame; 203: a connecting shaft; 204: kneading a flat head;
205: kneading the flat end face; 206: a vertex; 207: a first rotating shaft;
208: mounting a disc; 300: a full-tab battery roll core; 301: a tab;
302: prepressing the flat end face; 303: a center point.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution, and advantages of the embodiments of the present invention more clear, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a flattening device and a flattening method for a winding core of an all-tab battery, provided by an embodiment of the invention, with reference to fig. 1. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.
An embodiment of the first aspect of the present invention provides a full-tab battery roll core flattening device, as shown in fig. 1, the full-tab battery roll core flattening device includes: a battery holding device 100 and a flattening device 200.
Wherein the flattening device 200 can be moved in a direction to approach or move away from the battery holding device 100. The flattening device 200 is provided with a flattening assembly 201. The lug assembly 201 is capable of being fed in a radial direction parallel to the pre-pressed flat end face 302 of the full tab battery roll core 300. And the battery clamping device 100 and the flattening device 200 can rotate relatively, so that the flattening component 201 can press down the tabs 301 on the full-tab battery winding core 300 one by one from the outside to the inside.
In the device for flattening the winding core of the all-tab battery provided by the invention, the flattening device 200 can move in the direction approaching the battery clamping device 100 when the flattening work of the tab 301 is performed. The flattening assembly 201 on the flattening apparatus 200 can be fed in a radial direction parallel to the pre-pressed flat end face 302 of the full tab battery roll core 300. And the battery clamping device 100 and the flattening device 200 can rotate relatively, so that the flattening component 201 can press down the tabs 301 on the full-tab battery winding core 300 one by one from the outside to the inside. After the operation of the flattening ears 301 is completed, the flattening device 200 can be moved in a direction away from the battery holding device 100.
Through the structural arrangement, the flattening component 201 on the flattening device 200 can press down the tabs 301 on the full-tab battery winding core 300 one by one from outside to inside along the radial direction of the pre-pressing flat end surface 302 of the full-tab battery winding core 300. Therefore, the pressing direction of the lugs 301 of the full-lug battery roll core 300 is consistent, the contact effect between the lugs 301 is guaranteed, and the current collecting effect of the full-lug battery is further improved. Meanwhile, the kneading and flattening device 200 can not shake and break the tabs, and the safety of the full-tab battery is greatly improved.
In one embodiment of the invention, the flattening apparatus 200 further comprises a first rotating shaft 207 and a mounting plate 208. The first rotating shaft 207 is connected to a mounting plate 208. The tumbling unit 201 is mounted on a mounting plate 208. The first rotating shaft 207 can rotate the mounting plate 208 and the kneading head assembly 201.
For example, as shown in fig. 1, the flattening device 200 is provided coaxially with the battery holding device 100. The battery holding device 100 is provided with a battery holding region. The all-tab battery winding core 300 is held in the battery holding region, and the center axis of the all-tab battery winding core 300 attached to the battery holding region also coincides with the center axes of the flattening device 200 and the battery holding device 100.
The mounting plate 208 is connected to the first rotating shaft 207, and the kneading block assembly 201 is connected to the mounting plate 208. The first rotating shaft 207 can rotate the mounting plate 208 and the kneading head assembly 201. The battery holding device 100 is stationary. Meanwhile, the full tab battery roll core 300 is relatively stationary with the battery clamping device 100. As a result, the battery clamping device 100 and the flattening device 200 can rotate relative to each other, and the full-tab battery winding core 300 and the flattening device 200 can rotate relative to each other. At this time, the flat-head component 201 is fed along the radial direction of the pre-pressing flat end surface 302, and finally the flat-head component 201 presses down the tabs 301 on the full-tab battery winding core 300 one by one from the outside to the inside.
For another example, in one embodiment of the present invention, the battery holding device 100 is provided with a second rotating shaft. The second rotation shaft can drive the battery holding device 100 to rotate. The flattening apparatus 200 also includes a mounting plate 208. The tumbling unit 201 is mounted on a mounting plate 208.
The second rotation shaft can drive the battery holding device 100 to rotate along the central axis of the battery holding device 100. The full tab battery roll core 300 is stationary relative to the battery clamping device 100. The mounting plate 208 in the flattening apparatus 200 is stationary. This enables relative rotation between the full-tab battery winding core 300 and the flattening device 200. At this time, the flat-head component 201 is fed along the radial direction of the pre-pressing flat end surface 302, and finally the flat-head component 201 presses down the tabs 301 on the full-tab battery winding core 300 one by one from the outside to the inside.
It should be understood that the above-mentioned embodiment is only an illustrative embodiment of the present invention, and does not constitute any limitation to the present invention. In the two embodiments, one embodiment illustrates the technical scheme that the battery clamping device 100 and the full-tab battery roll 300 core are stationary, and the flattening device 200 rotates to flatten the tabs 301; another embodiment illustrates the solution where the flattening device 200 is stationary and the battery clamping device 100 and the full tab battery core 300 are rotated to flatten the tabs 301. The technical scheme that the kneading and flattening operation of the tabs 301 can be performed by relative rotation between the full-tab battery winding core 300 and the kneading and flattening device 200 is within the protection scope of the invention.
In one embodiment of the present invention, the tack head assembly 201 includes a link frame 202, a link shaft 203, and a tack head 204.
Wherein the connecting bracket 202 is connected with the mounting plate 208. The connecting shaft 203 is connected with the connecting frame 202. The flat-kneading head 204 is connected with the connecting shaft 203. The connecting frame 202 can drive the connecting shaft 203 and the flat-kneading head 204 to feed along the radial direction parallel to the pre-pressing flat end surface 302.
It should be understood that the invention is not limited to the specific material of the kneading head 204. For example, in one embodiment of the present invention, the material of the kneading head 204 is polytetrafluoroethylene.
Further, in one embodiment of the present invention, the flattened end surface 205 in contact with the full tab battery jelly roll 300 is parallel to the pre-pressed flat end surface 302 on the flattened end 204.
As shown in fig. 1, the attachment frame 202 is slidably mounted to the mounting plate 208. The connecting shaft 203 is connected with the connecting frame 202. The end of the connecting frame 202 is provided with a flat head 204. The connecting frame 202 can drive the connecting shaft 203 and the flat-kneading head 204 to feed along the radial direction parallel to the pre-pressing flat end surface 302. Meanwhile, the flat-rolled end surface 205 of the flat-rolled end 204, which is in contact with the full-tab battery roll core 300, and the flat-rolled pre-pressing end surface 302 are parallel to each other. For example, in fig. 1, the kneading planar end surface 205 and the pre-pressing planar end surface 302 are both vertical planes.
Through the structure setting, make to rub flat end face 205 and the flat end face 302 of pre-compaction that flat end 204 goes up and contact with full utmost point ear battery roll core 300 and be parallel to each other, can prevent utmost point ear 301 to warp on the basis that flat device 200 was pressed down one by one to utmost point ear 301 outside-in on full utmost point ear battery roll core 300 in the assurance, make the flat end face 302 of pre-compaction level and smooth more, promote the battery performance, be favorable to going on of subsequent current collection dish welding operation simultaneously.
In one embodiment of the present invention, the length of the flattened end surface 205 in the radial direction parallel to the pre-pressing flat end surface 302 is equal to or greater than the radius of the pre-pressing flat end surface 302. The highest point of the radial feeding of the flat kneading head 204 is the coincidence point of the vertex 206 of the flat kneading head 204 and the central point 303 of the pre-pressing flat end surface 302.
For example, as shown in fig. 1, it is assumed that both the kneading planar end surface 205 and the pre-pressing planar end surface 302 are vertical planes. At this time, the vertical length of the flat kneading end surface 205 of the flat kneading head 204 in contact with the flat pre-pressing end surface 302 is greater than the radius of the flat pre-pressing end surface 302. The apex 206 of the flat head 204 is fed no further than the center point 303 of the flat pre-compression end face 302.
According to the embodiment described above, by adopting such a structural arrangement that the length of the flattened end surface 205 in the radial direction parallel to the pre-pressing flat end surface 302 is equal to or greater than the radius of the pre-pressing flat end surface 302, it can be ensured that the tabs 301 on the all-tab battery winding core 300 are all pressed down and flattened.
In addition, the highest point of the radial feeding of the flat-kneading head 204 is the coincident point of the vertex 206 of the flat-kneading head 204 and the central point 303 of the pre-pressing flat end surface 302, so that the flat-kneading head 204 can be effectively prevented from reversely pressing down the tabs 301 on the full-tab battery winding core 300 beyond the radius part thereof from inside to outside, and the problem of reduction of the battery current collection performance caused by poor contact between the tabs 301 is avoided.
In an embodiment of the present invention, the connecting shaft 203 can drive the kneading head 204 to rotate along the central axis of the connecting shaft 203.
Through the structural arrangement, the connecting shaft 203 can drive the kneading head 204 to rotate. At the same time, relative rotation is also generated between the battery holding device 100 and the flattening device 200. Therefore, the flattening efficiency and the flattening effect of the tab 301 can be greatly improved.
In one embodiment of the invention, a plurality of tumbling assemblies 201 are provided on the mounting plate 208. Each of the tumbling units 201 is capable of being fed in a radial direction parallel to the pre-pressing flat end face 302.
For example, a plurality of the tumbling units 201 may be uniformly arrayed with the center of the mounting plate 208 as the center point of the array. Each of the tumbling units 201 is capable of being fed in a radial direction parallel to the pre-pressing flat end face 302. By arranging a plurality of flattening assemblies 201 on the mounting plate 208, the flattening efficiency and flattening effect of the tab 301 can be greatly improved.
Further, in one embodiment of the present invention, a flattening device 200 is provided on at least one of both sides of the battery holding device 100.
For example, as shown in fig. 1, a flattening device 200 is provided on the right side of the battery holding device 100. After the tab 301 on the right end face of the full tab battery roll core 300 is flattened, the full tab battery roll core 300 is reversely mounted to flatten the tab 301 on the left end face of the full tab battery roll core 300.
Similarly, a flattening device 200 may be provided on the left side of the battery holding device 100. After the tab 301 on the left end face of the full tab battery roll core 300 is flattened, the full tab battery roll core 300 is reversely mounted to flatten the tab 301 on the right end face of the full tab battery roll core 300.
Further, the flattening device 200 may be provided on each side of the battery holding device 100. The flattening devices 200 located at both sides of the battery holding device 100 can be simultaneously rotated and fed. This enables the tabs 301 at both ends of the all-tab battery winding core 300 to be simultaneously flattened. Through the structure, the flattening working efficiency of the tab 301 can be greatly improved.
The embodiment of the second aspect of the invention provides a flattening method based on the flattening device for the full-tab battery winding core, which comprises the following steps:
s101: clamping the full tab battery roll core 300 on the battery clamping device 100;
s102: moving the flattening device 200 in a direction approaching the battery clamping device 100 until the flattening end surface 205 of the flattening assembly 201 is flush with the pre-pressing flat end surface 302 of the full-tab battery roll core 300;
s103: the flattening device 200 and the battery clamping device 100 rotate relatively;
s104: feeding the flattening component 201 along the radial direction of the prepressing flat end surface 302 to gradually flatten the tabs 301 on the end surface of the full-tab battery winding core 300 from outside to inside;
s105: continuously rotating the flattening device 200 and the battery clamping device 100 relatively to keep the pressure maintaining and shaping of the tab 301;
s106: the flattening device 200 is moved in a direction away from the battery holding device 100, and the flattening device 200 and the battery holding device 100 are stopped from rotating relative to each other.
For example, in S101, the battery clamping device 100 is provided with a battery clamping area, and the all-tab battery winding core 300 is clamped to the battery clamping device 100. The central axis of the full tab battery roll core 300 coincides with the central axis of the battery clamping device 100. The full tab battery winding core 300 is stationary relative to the battery clamping device 100.
In S102, the flattening device 200 is pushed or automatically controlled to approach the battery holding device 100 so that the flattening end surface 205 of the flattening head 204, which is in contact with the pre-pressing flat end surface 302, is flush.
In S103, the flattening device 200 and the battery holding device 100 are relatively rotated. For example, in the present embodiment, the flattening device 200 is rotated, and the battery holding device 100 is stationary.
In S104, the connecting frame 202 is caused to feed the connecting shaft 203 and the flat head 204 in the radial direction of the pre-pressing flat end face 302. Thus, the kneading heads 204 press down and knead the tabs 301 on the end surfaces of the all-tab battery winding core 300 one by one from the outside to the inside.
In S105, after the flattening device 200 rotates once to press down all the tabs 301 on the end face of the full tab battery winding core 300, the flattening device 200 continues to rotate at least once to enable pressure-maintaining shaping of the tabs 301. For example, the flattening device 200 may be rotated for five additional revolutions to repeatedly press and flatten the tabs 301 on the end faces of the full tab battery cell winding core 300.
In S106, after the pressure maintaining and shaping of the tab 301, the flattening device 200 is pushed or automatically controlled away from the battery holding device 100. Then, the flattening apparatus 200 is stopped from rotating. Finally, the full tab battery roll core 300 is removed from the battery clamping device 100.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a device is rubbed to full utmost point ear battery roll core which characterized in that includes: a battery clamping device and a flattening device,
the flattening device can move along the direction close to or far away from the battery clamping device, a flattening component is installed on the flattening device, the flattening component can feed along the radial direction parallel to the prepressing flat end face of the full-lug battery roll core, and the battery clamping device and the flattening device can rotate relatively to enable the flattening component to press down the lugs on the full-lug battery roll core one by one from outside to inside.
2. The full-tab battery roll core flattening device according to claim 1, further comprising a first rotating shaft and a mounting plate, wherein the first rotating shaft is connected with the mounting plate, the flattening assembly is mounted on the mounting plate, and the first rotating shaft can drive the mounting plate and the flattening assembly to rotate.
3. The full-tab battery roll core flattening device according to claim 1, wherein a second rotating shaft is mounted on the battery clamping device, the second rotating shaft can drive the battery clamping device to rotate, the flattening device further comprises a mounting plate, and the flattening assembly is mounted on the mounting plate.
4. The full-tab battery roll core flattening device according to claim 2 or 3, wherein the flattening assembly comprises a connecting frame, a connecting shaft and a flattening head,
the connecting frame is connected with the mounting plate, the connecting shaft is connected with the connecting frame, the flat kneading head is connected with the connecting shaft, and the connecting frame can drive the connecting shaft and the flat kneading head to feed along the radial direction parallel to the pre-pressing flat end face.
5. The full-tab battery roll core flattening device according to claim 4, wherein the flattened end surface on the flattening head that contacts the full-tab battery roll core is parallel to the pre-pressed flat end surface.
6. The full-tab battery roll core flattening device according to claim 5, wherein the length of the flattened end surface in a radial direction parallel to the pre-pressed flat end surface is greater than or equal to the radius of the pre-pressed flat end surface, and the highest point of the radial feeding of the flattening head is the coincidence point of the vertex of the flattening head and the central point of the pre-pressed flat end surface.
7. The full-tab battery roll core flattening device according to claim 4, wherein the connecting shaft can drive the flattening head to rotate along the central axis of the connecting shaft.
8. The full-tab battery roll core flattening apparatus of claim 1, wherein the flattening apparatus is provided on at least one of two sides of the battery clamping apparatus.
9. The full-tab battery roll core flattening apparatus according to claim 2 or 3, wherein a plurality of the flattening assemblies are provided on the mounting plate, each of the flattening assemblies being capable of being fed in a radial direction parallel to the pre-pressed flat end face.
10. A flattening method based on the flattening device for the full-tab battery winding core according to any one of claims 1 to 9, characterized by comprising:
clamping the full-tab battery roll core on a battery clamping device;
moving the flattening device along the direction close to the battery clamping device until the flattening end surface of the flattening component is flush with the pre-pressing flat end surface of the full-tab battery winding core;
the flattening device and the battery clamping device rotate relatively;
feeding the flat-kneading component along the radial direction of the prepressing flat end surface to press down and knead the tabs on the end surface of the full-tab battery roll core from outside to inside one by one;
continuously rotating the flattening device and the battery clamping device relatively to keep the pressure of the tab constant and shape;
the flattening device is moved in a direction away from the battery holding device, and the flattening device and the battery holding device stop rotating relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557853.5A CN113241504A (en) | 2021-05-21 | 2021-05-21 | Full-tab battery roll core flattening device and flattening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557853.5A CN113241504A (en) | 2021-05-21 | 2021-05-21 | Full-tab battery roll core flattening device and flattening method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113241504A true CN113241504A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110557853.5A Pending CN113241504A (en) | 2021-05-21 | 2021-05-21 | Full-tab battery roll core flattening device and flattening method |
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| Country | Link |
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| CN (1) | CN113241504A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745631A (en) * | 2021-08-31 | 2021-12-03 | 湖北亿纬动力有限公司 | Battery roll core flattening method |
| CN114243124A (en) * | 2021-12-22 | 2022-03-25 | 深圳市海目星激光智能装备股份有限公司 | Lug shaping method, lug shaping equipment and battery cell processing system |
| CN114361380A (en) * | 2022-01-05 | 2022-04-15 | 星恒电源股份有限公司 | Pole piece convenient to flatten and roll core forming method |
| CN114361555A (en) * | 2021-12-31 | 2022-04-15 | 远景动力技术(江苏)有限公司 | Full-tab cylindrical battery flattening method |
| CN114744269A (en) * | 2022-03-16 | 2022-07-12 | 厦门海辰新能源科技有限公司 | Battery roll core rub flat device |
| CN117810555A (en) * | 2024-03-01 | 2024-04-02 | 宁德时代新能源科技股份有限公司 | Tab flattening device, tab flattening control method and battery production system |
| WO2024145788A1 (en) * | 2023-01-03 | 2024-07-11 | 宁德时代新能源科技股份有限公司 | Flattening apparatus, flattening method, and battery manufacturing device |
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2021
- 2021-05-21 CN CN202110557853.5A patent/CN113241504A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745631A (en) * | 2021-08-31 | 2021-12-03 | 湖北亿纬动力有限公司 | Battery roll core flattening method |
| CN114243124A (en) * | 2021-12-22 | 2022-03-25 | 深圳市海目星激光智能装备股份有限公司 | Lug shaping method, lug shaping equipment and battery cell processing system |
| CN114361555A (en) * | 2021-12-31 | 2022-04-15 | 远景动力技术(江苏)有限公司 | Full-tab cylindrical battery flattening method |
| CN114361555B (en) * | 2021-12-31 | 2023-06-16 | 远景动力技术(江苏)有限公司 | Full-lug cylindrical battery flattening method |
| CN114361380A (en) * | 2022-01-05 | 2022-04-15 | 星恒电源股份有限公司 | Pole piece convenient to flatten and roll core forming method |
| CN114361380B (en) * | 2022-01-05 | 2024-07-26 | 星恒电源股份有限公司 | Pole piece convenient to knead and roll core forming method |
| CN114744269A (en) * | 2022-03-16 | 2022-07-12 | 厦门海辰新能源科技有限公司 | Battery roll core rub flat device |
| WO2024145788A1 (en) * | 2023-01-03 | 2024-07-11 | 宁德时代新能源科技股份有限公司 | Flattening apparatus, flattening method, and battery manufacturing device |
| CN117810555A (en) * | 2024-03-01 | 2024-04-02 | 宁德时代新能源科技股份有限公司 | Tab flattening device, tab flattening control method and battery production system |
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