CN212011133U - Device for preventing pole piece from being folded - Google Patents
Device for preventing pole piece from being folded Download PDFInfo
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- CN212011133U CN212011133U CN202020618469.2U CN202020618469U CN212011133U CN 212011133 U CN212011133 U CN 212011133U CN 202020618469 U CN202020618469 U CN 202020618469U CN 212011133 U CN212011133 U CN 212011133U
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- pole piece
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- fixing roller
- fold
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- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 238000010438 heat treatment Methods 0.000 claims description 34
- 230000002265 prevention Effects 0.000 claims description 9
- 238000009499 grossing Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Classifications
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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
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- 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)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The application provides a device that folds that death is prevented to pole piece includes: a support structure; the guide mechanism is arranged on the supporting structure; and the flattening mechanism is adjustably connected to the supporting structure and is used for the pole piece blank area before the pole piece enters the guide mechanism. The flattening mechanism can contact one side of the bottom of the pole piece and pull the pole piece blank leaving area, and dead folds are prevented from appearing when the pole piece blank leaving area enters the roller.
Description
Technical Field
The application relates to the field of lithium ion battery equipment, in particular to a pole piece anti-dead-fold device.
Background
The lithium ion battery pole piece manufacturing process generally comprises the steps of mixing active substances, a binder, a conductive agent and the like to prepare slurry, coating the slurry on one side or two sides of a metal current collector, drying, removing the solvent to form a dried pole piece, pressing and compacting a pole piece particle coating by a guide mechanism, and cutting or slitting into required sizes.
Typically, when the pole piece is fabricated, the current collector leaves a 15-30mm clear space, referred to as the pole piece blanking area. After the pole piece is rolled, due to the extension action, the extension of the blank area is inconsistent with that of the material area, dead folds are easy to occur when the blank area guide mechanism is used, so that the pole piece has poor defects of indentation, fracturing, folds and the like, and the internal resistance of the battery is influenced. The occurrence of dead folds of the pole pieces can directly cause disqualification of the positive pole piece and the negative pole piece of the lithium battery, and the rejection rate of the battery in manufacturing is increased, so that the manufacturing cost of the battery is increased.
The traditional solution is to adjust the levelness of the guide mechanism with dead folds or paste Teflon in the white area of the pole piece of the carrier roller before rolling, so that the operation process is troublesome, the normal operation of the equipment is influenced, and the effect is not particularly ideal. In addition, the blank area of the pole piece is heated by ultrasonic waves, the problem of inconsistent extension is solved, but the ultrasonic wave heating only can be used for positive pole operation, copper oxide is generated when a negative pole is used, and the quality of the blank area of the pole piece is influenced.
SUMMERY OF THE UTILITY MODEL
What this application will solve is that the pole piece leaves white district roll-in process and appears the technical problem of dead fold easily.
In order to solve the technical problem, the application discloses a device that folds that dies is prevented to pole piece includes:
a support structure;
the guide mechanism is arranged on the supporting structure;
and the flattening mechanism is adjustably connected to the supporting structure and is used for the pole piece blank area before the pole piece enters the guide mechanism.
Optionally, the flattening mechanism comprises a flattening fixing roller, and a first flattening structure for releasing stress of the pole piece blank area is arranged on the surface of the flattening fixing roller.
Optionally, the first flattening structure is an intermittent protrusion or a continuous protrusion.
Optionally, the first flattening structure is an intermittent protrusion or a continuous protrusion spirally wound on the surface of the flattening fixing roller.
Optionally, a first heating element is arranged in the flattening fixing roller;
and/or the presence of a gas in the gas,
the outer surface of the flattening fixing roller is provided with a second heating element, and the second heating element forms intermittent bulges or continuous bulges of the first flattening structure;
and/or the presence of a gas in the gas,
the outer surface of the flattening fixing roller is provided with a third heating element, the third heating element is positioned in a gap groove of the first flattening mechanism, and the gap groove is adjacent to the discontinuous protrusions or gaps formed between the continuous protrusions.
Optionally, one end of the flattening fixing roller, which is far away from the supporting structure, is of a tapered structure.
Optionally, the flattening mechanism further comprises a second supporting shaft, one end of the second supporting shaft is installed in the flattening adjusting groove, the other end of the second supporting shaft is connected with the flattening fixing roller, and the flattening fixing roller can rotate along the second supporting shaft.
Optionally, the guide mechanism comprises a roller and a first supporting shaft, the roller sleeve is arranged on the first supporting shaft and can rotate along the first supporting shaft, and the first supporting shaft is fixedly connected with the supporting structure.
Optionally, the support structure is further provided with a flattening adjusting groove for adjusting and fixing the position of the flattening mechanism.
Adopt above-mentioned technical scheme, this application the device of preventing dead pleat of pole piece have following beneficial effect:
add flattening mechanism in this application dead fold device is prevented to pole piece, flattening mechanism can contact the bottom one side of pole piece is drawn the pole piece leaves the white district, prevents that the pole piece from leaving the white district and going into the roller when appearing the dead fold.
Further, flattening mechanism of this application is equipped with heating element including flattening fixed roll in the flattening fixed roll, heating element can be adjusted through heating the extension in white district is stayed to the pole piece, reaches the pole piece and stays white district and the extension of pole piece material district unanimous, guarantees that the pole piece stays white district and does not take place the dead fold.
Further, this application still be equipped with flat adjustment tank of exhibition on the bearing structure, the second back shaft one end of exhibition flat mechanism install in flat adjustment tank of exhibition is worked as when wearing of pole piece takes the angle change, can pass through flat adjustment tank of exhibition is guaranteed flat fixed roll produces the dead fold effect of preventing to the pole piece white space.
Further, this application pole piece prevents that device of becoming blind can the direct mount in equipment, prevents that field personnel from adjusting roller level and pasting the teflon repeatedly to the problem.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of an anti-dead-fold device according to an embodiment of the present application;
FIG. 2 is a schematic view of another embodiment of the anti-dead-fold device of the present application;
FIG. 3 is a perspective view of a flattening fixed roll according to an embodiment of the present application;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a schematic view of a smoothing member according to an embodiment of the present application;
fig. 6 is a schematic view of a pacifier in another embodiment of the present application.
The following is a supplementary description of the drawings:
1-a support structure; 11-rotating the regulating groove; 12-flattening the adjustment groove;
2-a guiding and conveying mechanism; 21-passing through a roller; 22-a first support shaft;
3-a smoothing mechanism; 31-a support; 32-a smoothing member; 321-a traction part; 322-a flattening section;
4-a flattening mechanism; 41-flattening the fixed roller; 411-edge thinning ring; 42-a second support shaft;
5-pole piece.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and 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 application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and 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 present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
For solving the technical problem that dead folds easily appear in the pole piece blank area rolling process among the relevant prior art, the embodiment of the application provides a pole piece anti-dead folds device. Fig. 1 shows a schematic view of a dead-fold prevention device according to an embodiment of the present application, fig. 2 shows a schematic view of a dead-fold prevention device according to another embodiment of the present application, and the pole piece dead-fold prevention device according to the embodiment is explained below with reference to fig. 1 and 2.
A pole piece anti-dead-fold device comprising:
a support structure 1;
the guide mechanism 2 is arranged on the supporting structure 1, and the guide mechanism 2 is used for guiding the pole piece 5;
and the flattening mechanism 4 is adjustably connected to the support structure 1, and acts as a blank area for the pole piece 5 before the pole piece 5 enters the guide mechanism 2.
In this embodiment, the guiding mechanism 2 may include a roller 21 and a first supporting shaft 22, the roller 21 is sleeved on the first supporting shaft 22 and can rotate along the first supporting shaft 22, and the first supporting shaft 22 is fixedly connected to the supporting structure 1. In a possible embodiment, the guide mechanism 2 can also perform a rotational movement as a whole with respect to the support structure 1, and accordingly, the roller 21 and the first support shaft 22 are of a one-piece structure.
In this embodiment, the flattening mechanism 4 is located before the guiding direction of the guiding mechanism 2, the flattening mechanism 4 is adjustably connected to the supporting structure 1, and acts on the pole piece 5 blank area before the pole piece 5 enters the guiding mechanism 2.
In some embodiments, as shown in fig. 1 and 2, the device may further comprise a smoothing mechanism 3, the smoothing mechanism 3 being adjustably connected to the support structure 1 for acting on a margin of the pole piece 5 when the pole piece 5 enters the guiding mechanism 2.
A preset pole piece 5 feeding gap is reserved between the flattening mechanism 3 and the guide mechanism 2, after the pole piece 5 enters the guide mechanism 2, the flattening mechanism 3 is positioned on one side of the top of the pole piece 5 and acts on a blank area of the pole piece 5, so that the blank area of the pole piece 5 releases stress; the guide and feed mechanism 2 is positioned on one side of the bottom of the pole piece 5, supports and guides the pole piece 5, the smoothing mechanism 3 is matched with the guide and feed mechanism 2, and dead folds are prevented from occurring in the process that the pole piece 5 passes through the roller 21 after entering the guide and feed mechanism 2.
In this embodiment, flattening mechanism 4 is followed the feeding direction of pole piece 5 set up in before leading mechanism 2, promptly flattening mechanism 4 with lead mechanism 2 and be located bottom one side of pole piece 5, flattening mechanism 4 the direction of motion with lead mechanism 2's direction of motion unanimous, flattening mechanism 4 can contact bottom one side of pole piece 5 is drawn pole piece 5 leaves the white district, prevents that dead fold from appearing when pole piece 5 leaves the white district and goes into the roller.
Further, the flattening mechanism 3 and the flattening mechanism 4 can cooperate to ensure that dead folds of the pole piece 5 in the processes of entering the roller and passing the roller 21 do not occur.
The feeding direction of a pole piece 5 of the whole pole piece anti-dead-fold device is that the pole piece 5 firstly passes through the flattening mechanism 4 and then enters the guiding and conveying mechanism 2, and then the pole piece 5 enters between the flattening mechanism 3 and the guiding and conveying mechanism 2.
The arrangement number of the flattening mechanisms 3 and the flattening mechanisms 4 is flexibly selected according to the number of the dead fold prevention requirements of the blank areas of the pole pieces 5, and as shown in fig. 1, the flattening mechanisms 3 and the flattening mechanisms 4 are only arranged in the blank areas on one side of the pole pieces 5; as shown in fig. 2, the smoothing mechanism 3 and the flattening mechanism 4 are arranged in pairs in the left and right blank areas of the pole piece 5.
In some embodiments, as shown in fig. 1 and 2, the smoothing mechanism 3 includes a support 31 and a smoothing member 32, the smoothing member 32 surrounds a portion of the guide mechanism 2, and a preset gap is left between the smoothing member 32 and the guide mechanism 2;
the supporting member 31 is arranged at a distance from the guiding mechanism 2, one end of the supporting member 31 is fixed with the smoothing member 32, and the other end of the supporting member 31 is adjustably connected to the supporting structure 1 to adjust the position and angle of the smoothing member 32.
In this embodiment, the smoothing member 32 embraces part of the guiding mechanism 2, which is understood to mean that the smoothing member 32 is wrapped or surrounded and the roller of the guiding mechanism 2 maintains the preset gap, which is used for passing through the pole piece.
In some embodiments, as shown in fig. 1 and 2, the support structure 1 is provided with a rotation adjustment slot 11, and one end of the support member 31 is adjustably mounted to the rotation adjustment slot 11. When the threading angle of the pole piece is changed, the support piece 31 can be moved through the rotary adjusting groove 11 to adjust the position and the angle of the smoothing piece 32, so that the smoothing plate is ensured to generate the anti-dead-fold effect on the blank area of the pole piece.
In some embodiments, referring to fig. 1 and 2, the flattening mechanism 4 includes a flattening fixing roller 41, and a surface of the flattening fixing roller 41 is provided with a first flattening structure for releasing stress of the pole piece blank region.
In some embodiments, the first flattened structure is an intermittent protrusion or a continuous protrusion. Other raised structures are also possible in possible embodiments.
Fig. 3 is a schematic perspective view illustrating a flattening fixing roller according to an embodiment of the present application, and fig. 4 is a front view of fig. 3.
Specifically, as shown in fig. 3 and 4, the first flattening structure may be a continuous protrusion spirally wound around the surface of the flattening fixing roller. Wherein, the cross section (also understood as the section) of the continuous bulge can be in the shape of semicircle, triangle, rectangle, trapezoid, sector and the like. The continuous protrusion may also be in the form of a variable cross-section. The continuous protrusion in this embodiment may also be understood as an external thread, which may accordingly be a triangular thread, a rectangular thread, a trapezoidal thread, a saw-tooth thread, etc. The uneven stress area of the pole piece blank area can release stress under the action of the external threads, so that the phenomenon of dead folds caused by entering the roller is avoided.
In other possible embodiments, the first flattening structure may be an intermittent protrusion spirally wound around the surface of the flattening fixed roller. The form of the discontinuous bulges can be any one or combination of convex points and convex line segments, the shapes of the convex points can be round points, triangles, quadrangles and other shapes, and the cross sections of the convex line segments can be semicircular, triangular, rectangular, fan-shaped and other shapes.
In some embodiments, a first heating element is arranged in the flattening fixing roller and used for heating and adjusting the extension of the pole piece blank area, so that the extension of the pole piece blank area is consistent with that of the pole piece material area, and the pole piece blank area is prevented from dead folding. In this embodiment, the first heating element may be a resistance wire or a carbon fiber heating wire or other heating materials.
In some embodiments, the outer surface of the flattening fixing roller can be further provided with a second heating element, the second heating element forms an intermittent bulge or a continuous bulge of the first flattening structure, the second heating element is also used for heating and adjusting the extension of the pole piece blank area, the pole piece blank area and the pole piece material area are consistent in extension, and the pole piece blank area is ensured not to be subjected to dead folding. The second heating element can also be a resistance wire or a carbon fiber heating wire or other heating materials.
In some embodiments, the outer surface of the flattening fixing roller is provided with a third heating element, the third heating element is located in a gap groove of the first flattening mechanism 4, the gap groove is a gap formed between adjacent intermittent protrusions or continuous protrusions, and the third heating element is also used for heating and adjusting the extension of the pole piece blank area, so that the pole piece blank area and the pole piece material area are consistent in extension, and the pole piece blank area is ensured not to generate dead folds.
In this embodiment, the arrangement of the third heating element is lower than the highest point of the intermittent or continuous protrusions, ensuring that the interference with the operation of the first flattening structure is avoided. The third heating element can also be a resistance wire or a carbon fiber heating wire or other heating materials.
In some embodiments, referring to fig. 1-4, the end of the flattening fixed roller away from the support structure 1 is a tapered structure to prevent scratching the surface of the pole piece.
The tapered structure may be an edge skive ring 411. Specifically, as shown in fig. 3 and 4, the end of the flattening fixing roller far from the supporting structure 1 is thinned to generate the edge thinning ring 411, the thinning width of the edge thinning ring 411 is 1/20 of the diameter of the flattening fixing roller, and the thinning thickness is 1/20 of the diameter of the flattening fixing roller. Furthermore, the tapered structure may also be rounded.
In some embodiments, as shown in fig. 1 and 2, the support structure 1 is further provided with a flattening adjustment groove 12 for adjusting and fixing the position of the flattening mechanism 4.
In some embodiments, the flattening mechanism 4 further includes a second support shaft 42, one end of the second support shaft 42 is mounted to the flattening adjustment groove 12, and the other end is connected to the flattening fixing roller 41, and the flattening fixing roller 41 is rotatable along the second support shaft 42. When the threading angle of the pole piece is changed, the flattening adjusting groove 12 can ensure that the flattening fixing roller 41 generates the dead fold prevention effect on the pole piece blank area.
Fig. 5 shows a schematic view of one of the flattening members of the embodiments, and fig. 6 shows a schematic view of another of the flattening members of the embodiments.
Referring to fig. 5 and 6, a second flattening structure is formed on the surface of the smoothing member facing the guide mechanism 2, and the second flattening structure is used for releasing the stress of the pole piece blank area. The second flattening structure is located in a partial area of the flattening piece.
In some embodiments, the second flattened structure may be an intermittent protrusion or a continuous protrusion disposed at intervals. The second flattening structure can be referred to the structure of the first flattening structure, and details are not repeated here.
Specifically, as shown in fig. 5 and 6, the second flattening structure can be an internal spiral line, and the stress release can be performed in the area with uneven stress in the pole piece blank area under the action of the internal spiral line of the flattening plate, so that the phenomenon of dead folds during roll passing is avoided.
In some embodiments, as shown in fig. 5 and 6, the smoothing member includes a pulling portion 321 and a flattening portion 322, the flattening portion 322 is located between the pulling portions 321, the pulling portion 321 is connected with the flattening portion 322 in a smooth transition manner, and a side of the flattening portion 322 close to the guiding mechanism 2 is arc-shaped. The inner contour of the flattening section 322 matches the outer contour of the roller of the guide mechanism 2.
In this embodiment, the second flattening structure is disposed on the inner surface of the flattening portion 322.
In some embodiments, the smoothing member is a plate-shaped structure, and an end of the drawing portion 321 away from the flattening portion 322 extends in a curved manner away from the guiding mechanism 2.
In this embodiment, as shown in fig. 1, fig. 2, fig. 5, and fig. 6, when one end of the traction portion 321, which is far away from the flattening portion 322, is bent and extended away from the guiding mechanism 2, it can be understood that the free end of the traction portion 321 is tilted outward in the opposite direction, so as to prevent the connection position of the traction portion 321 and the flattening portion 322 from wearing the pole piece blank area, and prevent the pole piece blank area from directly colliding with the flattening portion 322 during the operation process to cause the strip breakage of the pole piece.
In some embodiments, the flattening part is a plate-shaped structure, the flattening part can be designed into different angles according to needs, the arc shape of the flattening part corresponds to the wrap angle of the roller, the flattening part can be used for different wrap angles of the roller, and the dead fold prevention function is achieved. Specifically, as shown in fig. 5, the flattened portion is 90 °; as shown in fig. 6, the flattening is 180 °.
In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, although not explicitly described herein. Such alterations, improvements, and modifications are intended to be suggested by this disclosure, and are within the spirit and scope of the exemplary embodiments of this disclosure.
Furthermore, certain terminology has been used in this application to describe embodiments of the disclosure. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the disclosure.
It should be appreciated that in the foregoing description of embodiments of the disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of the subject disclosure. Alternatively, various features may be dispersed throughout several embodiments of the application. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.
In some embodiments, numbers expressing quantities or properties used to describe and claim certain embodiments of the application are to be understood as being modified in certain instances by the term "about", "approximately" or "substantially". For example, "about," "approximately," or "substantially" may mean a 20% change in the soil of the values it describes, unless otherwise specified. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.
Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art may implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those embodiments described with accuracy in the application.
Claims (9)
1. A pole piece anti-dead-fold device, comprising:
a support structure;
the guide mechanism is arranged on the supporting structure;
and the flattening mechanism is adjustably connected to the supporting structure and is used for the pole piece blank area before the pole piece enters the guide mechanism.
2. The pole piece dead fold prevention device of claim 1, wherein the flattening mechanism comprises a flattening fixing roller, and a first flattening structure for releasing stress of the pole piece blank area is arranged on the surface of the flattening fixing roller.
3. The pole piece anti-dead-fold device of claim 2, wherein the first flattening feature is an intermittent protrusion or a continuous protrusion.
4. The pole piece anti-dead-fold device of claim 3, wherein the first flattening structure is an intermittent protrusion or a continuous protrusion spirally wound around the surface of the flattening fixing roller.
5. The pole piece anti-dead-fold device of claim 2, wherein a first heating element is arranged in the flattening fixing roller;
and/or the presence of a gas in the gas,
the outer surface of the flattening fixing roller is provided with a second heating element, and the second heating element forms intermittent bulges or continuous bulges of the first flattening structure;
and/or the presence of a gas in the gas,
the outer surface of the flattening fixing roller is provided with a third heating element, the third heating element is positioned in a gap groove of the first flattening mechanism, and the gap groove is adjacent to the discontinuous protrusions or gaps formed between the continuous protrusions.
6. The pole piece anti-dead-fold device of any one of claims 2 to 5, wherein an end of the flattening fixing roller away from the support structure is of a tapered structure.
7. The pole piece dead-fold prevention device as claimed in claim 1, wherein the guiding mechanism comprises a roller and a first supporting shaft, the roller is sleeved on the first supporting shaft and can rotate along the first supporting shaft, and the first supporting shaft is fixedly connected with the supporting structure.
8. The pole piece anti-dead-fold device as claimed in claim 2, wherein the support structure is further provided with a flattening adjusting groove for adjusting and fixing the position of the flattening mechanism.
9. The pole piece dead-fold prevention device as claimed in claim 8, wherein the flattening mechanism further comprises a second support shaft, one end of the second support shaft is mounted on the flattening adjustment groove, the other end of the second support shaft is connected with the flattening fixing roller, and the flattening fixing roller can rotate along the second support shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138326.XA CN110739442A (en) | 2019-11-18 | 2019-11-18 | dead fold prevention device for pole piece |
| CN201911138326X | 2019-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212011133U true CN212011133U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911138326.XA Pending CN110739442A (en) | 2019-11-18 | 2019-11-18 | dead fold prevention device for pole piece |
| CN202020618469.2U Active CN212011133U (en) | 2019-11-18 | 2020-04-22 | Device for preventing pole piece from being folded |
| CN202010321543.9A Pending CN111342000A (en) | 2019-11-18 | 2020-04-22 | Device for preventing pole piece from being folded |
| CN202010322114.3A Active CN111326705B (en) | 2019-11-18 | 2020-04-22 | Pole piece dead fold prevention device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911138326.XA Pending CN110739442A (en) | 2019-11-18 | 2019-11-18 | dead fold prevention device for pole piece |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010321543.9A Pending CN111342000A (en) | 2019-11-18 | 2020-04-22 | Device for preventing pole piece from being folded |
| CN202010322114.3A Active CN111326705B (en) | 2019-11-18 | 2020-04-22 | Pole piece dead fold prevention device |
Country Status (1)
| Country | Link |
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| CN (4) | CN110739442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326705A (en) * | 2019-11-18 | 2020-06-23 | 四川新敏雅电池科技有限公司 | Device for preventing pole piece from being folded |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729449A (en) * | 2019-11-19 | 2020-01-24 | 凌帕新能源科技(上海)有限公司 | Device for preventing pole piece from being folded |
| CN111640908B (en) * | 2020-06-03 | 2021-08-24 | 湖北亿纬动力有限公司 | Crease-resistant device and crease-resistant paster pasting method |
| WO2023225928A1 (en) * | 2022-05-26 | 2023-11-30 | 宁德时代新能源科技股份有限公司 | Tab flattening device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5635031B2 (en) * | 2012-03-27 | 2014-12-03 | ヒラノ技研工業株式会社 | Scraper |
| CN203839457U (en) * | 2014-04-01 | 2014-09-17 | 惠州市赢合科技有限公司 | Battery pole piece flattening mechanism and drying device provided with flattening mechanism |
| CN208014558U (en) * | 2018-01-23 | 2018-10-26 | 江苏尊道科技有限公司 | Rolling device is used in a kind of production of high compacted density ultracapacitor |
| CN207967154U (en) * | 2018-03-08 | 2018-10-12 | 宁德时代新能源科技股份有限公司 | Lug flattening device and winding apparatus |
| CN108987797B (en) * | 2018-09-20 | 2024-05-17 | 广东基泰智能设备有限公司 | Pole piece roller passing structure |
| CN209217126U (en) * | 2018-11-27 | 2019-08-06 | 无锡先导智能装备股份有限公司 | Cross roller arrangement and up- coiler |
| CN110739442A (en) * | 2019-11-18 | 2020-01-31 | 凌帕新能源科技(上海)有限公司 | dead fold prevention device for pole piece |
| CN212011132U (en) * | 2019-11-18 | 2020-11-24 | 四川新敏雅电池科技有限公司 | Device for preventing pole piece from being folded |
-
2019
- 2019-11-18 CN CN201911138326.XA patent/CN110739442A/en active Pending
-
2020
- 2020-04-22 CN CN202020618469.2U patent/CN212011133U/en active Active
- 2020-04-22 CN CN202010321543.9A patent/CN111342000A/en active Pending
- 2020-04-22 CN CN202010322114.3A patent/CN111326705B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326705A (en) * | 2019-11-18 | 2020-06-23 | 四川新敏雅电池科技有限公司 | Device for preventing pole piece from being folded |
| CN111342000A (en) * | 2019-11-18 | 2020-06-26 | 四川新敏雅电池科技有限公司 | Device for preventing pole piece from being folded |
| CN111326705B (en) * | 2019-11-18 | 2024-03-26 | 湖南领湃达志科技股份有限公司 | Pole piece dead fold prevention device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111342000A (en) | 2020-06-26 |
| CN111326705B (en) | 2024-03-26 |
| CN110739442A (en) | 2020-01-31 |
| CN111326705A (en) | 2020-06-23 |
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