Lamination assembly and lamination equipment

Abstract

The utility model discloses a lamination assembly and lamination equipment, and relates to the technical field of battery cell production, the lamination assembly comprises a lamination table, a detection mechanism and a partition plate, the lamination table is used for alternately stacking diaphragms and pole pieces, one side of each pole piece is provided with a pole lug, and a plurality of pole lugs are used for mutually aligning along the height direction of the lamination table; the detection mechanism is used for detecting whether the tab on the top layer is folded or not; the partition plate is movably arranged and is used for blocking between the tab on the top layer and the other tabs; according to the technical scheme, whether the tabs are folded or not can be effectively detected, and the production quality of battery cells can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core production, in particular to a stacking assembly and stacking equipment. Background Art

[0002] In the prior art, the battery cell lamination process typically involves alternating the separator and the positive and negative electrode sheets. Conventional detection mechanisms detect tab folding by collecting tab position information. During battery cell production, the tabs of multiple electrode sheets are often aligned along the height of the lamination table. Therefore, the detection results of the top tab are affected by interference from the other tabs below it, making it impossible to accurately detect whether the top tab is folded, which affects the production quality of the battery cells. Utility Model Content

[0003] The main purpose of the utility model is to provide a lamination assembly and a lamination device, which are intended to effectively detect whether the tabs are folded, thereby improving the production quality of battery cells.

[0004] To achieve the above-mentioned purpose, the laminate assembly proposed in the present invention includes:

[0005] A stacking platform for alternately stacking diaphragms and pole pieces, wherein a pole lug is provided on one side of the pole piece, and a plurality of the pole lugs are used to be aligned with each other along the height direction of the stacking platform;

[0006] A detection mechanism for detecting whether the tabs on the top layer are folded; and

[0007] The partition is movably arranged to separate the top tab from the other tabs.

[0008] In one embodiment, the separator comprises:

[0009] a main body portion, the main body portion being movably arranged; and

[0010] A barrier portion, one end of which is connected to the main body, and the other end of which is used to separate the top tab from the other tabs.

[0011] In one embodiment, the barrier portion includes a first segment and a second segment connected in sequence along a direction away from the main body;

[0012] The second segment is a plate structure, and the first segment is thicker than the second segment.

[0013] In one embodiment, a smooth transition structure is formed between the first segment and the second segment.

[0014] In one embodiment, there are at least two barrier portions, and at least two barrier portions are arranged side by side.

[0015] In one embodiment, an arc-shaped transition structure is provided between two adjacent barrier portions.

[0016] In one embodiment, the lamination platform is provided with a groove, and the groove and the blocking portion are arranged opposite to each other.

[0017] In one embodiment, the lamination assembly further includes two pressing knives, both of which are movably arranged and respectively disposed on opposite sides of the partition.

[0018] In one embodiment, the partition is connected to one of the pressing blades so as to move synchronously with the pressing blade.

[0019] The present invention further provides a lamination device, comprising any one of the lamination assemblies described above, wherein the lamination assembly comprises:

[0020] A stacking platform for alternately stacking diaphragms and pole pieces, wherein a pole lug is provided on one side of the pole piece, and a plurality of the pole lugs are used to be aligned with each other along the height direction of the stacking platform;

[0021] A detection mechanism for detecting whether the tabs on the top layer are folded; and

[0022] The partition is movably arranged to separate the top tab from the other tabs.

[0023] The technical solution of the present invention is to provide a partition. When inspecting the top-layer tab, the partition is placed between the top-layer tab and the other tabs, so as to avoid the inspection result of the top-layer tab being interfered with by the other tabs at the bottom. This is beneficial to effectively detect whether the top-layer tab is folded, and is beneficial to improving the production quality of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of an embodiment of a lamination assembly provided by the present invention;

[0026] Figure 2 for Figure 1 Partial structural diagram of the middle lamination assembly;

[0027] Figure 3 for Figure 1Structure diagram of the partition plate of the middle lamination assembly;

[0028] Figure 4 For Figure 1 Structure diagram of the partition plate of the middle lamination assembly.

[0029] Brief Description of the Drawings:

[0030] 100, lamination assembly; 10, lamination table; 11, groove; 20, partition plate; 21, main body part; 22, blocking part; 221, first section body; 222, second section body; 23, smooth transition structure; 24, arc transition structure; 30, presser.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0034] In addition, if the present application embodiments involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0035] In the related art, the lamination process of the battery cell usually adopts the way of alternately stacking the diaphragm and the positive and negative electrode sheets to produce the battery cell. Since the conventional detection mechanism detects whether the tab is folded by collecting the position information of the tab, and the tabs of the plurality of electrode sheets are aligned with each other along the height direction of the lamination table during the production process of the battery cell, the detection result of the tab located at the top layer will be interfered by the other tabs at the bottom, and the top layer tab cannot be accurately detected whether it is folded, which affects the production quality of the battery cell.

[0036] The utility model provides a kind of lamination assembly 100.

[0037] Please refer to Figures 1 to 4 In an embodiment of the utility model, the lamination assembly 100 includes:

[0038] The lamination table 10 is used for alternately stacking the diaphragm and the electrode sheet. One side of the electrode sheet is provided with a tab. A plurality of tabs are used to align with each other along the height direction of the lamination table 10.

[0039] The detection mechanism is used for detecting whether the tab at the top layer is folded.

[0040] The partition plate 20 is movably arranged to separate the tab at the top layer from the other tabs.

[0041] The detection mechanism can be arranged directly above the tab to be arranged vertically with the tab. The detection mechanism can be but not limited to a CCD detection mechanism. The tab at the top layer can be analyzed by taking a photo to determine whether the tab at the top layer is folded. The lamination assembly 100 can further include a driving mechanism for driving connection with the partition plate 20 to make the partition plate 20 horizontally extend or retract or move up and down relative to the lamination table 10.

[0042] It can be understood that the technical scheme of the utility model can separate the tab at the top layer from the other tabs by the partition plate 20 when detecting the tab at the top layer, so as to avoid the detection result of the tab at the top layer being interfered by the other tabs at the bottom. Therefore, it is beneficial to effectively detect whether the tab at the top layer is folded and improve the production quality of the battery cell.

[0043] Please refer to Figures 2 to 4 In an embodiment of the utility model, the partition plate 20 includes:

[0044] The main body 21 is movably arranged.

[0045] The partitioning part 22 is connected to the main body 21 at one end and used to separate the tab at the top layer from the other tabs at the other end.

[0046] The main body 21 can be used to drive connection driving mechanism, so that the baffle 20 can be driven by the driving mechanism to move towards or away from the upper part of the lamination table 10, or to move up and down along the height direction of the lamination table 10. The cross-sectional area of the baffle part 22 is greater than the cross-sectional area of the lug, so that when the baffle 20 extends into the lug of the top layer and the lug of the next layer, the projection of the next layer and the remaining lug at the bottom of the baffle part 22 is located in the baffle part 22, so that the baffle 20 can realize complete blocking of the lug outside the top layer. In some embodiments, the lug can be but not limited to be provided as a light reflecting material, which is beneficial to realize better blocking effect and avoid the lug image outside the top layer from interfering with the detection of the detection mechanism, thereby being beneficial to guarantee the detection accuracy of the lug of the top layer.

[0047] Please refer to Figure 3 and Figure 4 In the embodiment of the utility model, the baffle part 22 includes first segment body 221 and second segment body 222 connected in turn in the direction away from the main body 21.

[0048] The second segment body 222 is a plate body structure, and the thickness of the first segment body 221 is greater than that of the second segment body 222.

[0049] In this way, the structural strength of the first segment body 221 can be guaranteed, and the thin plate-shaped second segment body 222 can be inserted between the lug of the top layer and the lug of the next layer.

[0050] Please refer to Figure 3 In the embodiment of the utility model, a smooth transition structure 23 is formed between the first segment body 221 and the second segment body 222. The smooth transition structure 23 can be but not limited to a bevel structure.

[0051] Please refer to Figure 3 and Figure 4 In the embodiment of the utility model, at least two baffle parts 22 are provided, and the at least two baffle parts 22 are arranged side by side.

[0052] In this way, at least two groups of lugs aligned along the height direction of the lamination table 10 can be blocked by the baffle 20 at one time, and the work efficiency is improved.

[0053] Please refer to Figure 4 In the embodiment of the utility model, an arc-shaped transition structure 24 is arranged between the two adjacent baffle parts 22.

[0054] Please refer to Figure 1 In the embodiment of the utility model, the lamination table 10 is provided with a groove 11, and the groove 11 and the baffle part 22 are arranged oppositely. In this way, the alignment and detection of the lug can be realized.

[0055] In some embodiments, the barrier 22 is provided with at least two, and the lamination table 10 is provided with at least two grooves 11, each groove 11 corresponding to one tab.

[0056] Referring to Figure 1 and Figure 2 In the embodiments of the present application, the lamination assembly 100 further comprises two pressing knives 30, both of which are movably arranged on opposite sides of the partition plate 20.

[0057] The pressing knife is used to extend to press the diaphragm or the tab when the diaphragm is laminated, so as to assist the diaphragm to realize Z-shaped winding.

[0058] Referring to Figure 2 In the embodiments of the present application, the partition plate 20 is connected with one of the pressing knives 30 to move synchronously with the pressing knife 30.

[0059] In this way, the partition plate 20 and the pressing knife 30 can be simultaneously driven to move by a driving mechanism, which is advantageous to reduce the occupied volume and use cost of the lamination assembly 100 compared with the technical solutions in which the partition plate 20 and the pressing knife 30 are separately driven.

[0060] In some embodiments, the partition plate 20 and the pressing knife 30 can be mounted on a mounting bracket or a mounting module in transmission connection with the driving mechanism, and can be mounted and fixed by fastening structures such as screws, but are not limited thereto.

[0061] The present application also provides a lamination device, which comprises the lamination assembly 100, and the specific structure of the lamination assembly 100 is referred to the above embodiments. Since the lamination device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0062] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields based on the technical concept of the present application and the contents of the present application are included in the patent protection scope of the present application.

Claims

1. A lamination assembly, characterized by, The application relates to a laminating assembly, comprising: a laminating table for alternately laminating diaphragms and pole pieces, one side of the pole pieces being provided with pole lugs, and a plurality of the pole lugs being used for aligning with each other along the height direction of the laminating table; a detection mechanism for detecting whether the pole lugs of the top layer are folded; and a partition plate movably arranged to separate the pole lugs of the top layer from the rest of the pole lugs.

2. The stack assembly of claim 1, wherein The partition plate comprises: a main body part movably arranged; and a separation part, one end of which is connected to the main body part, and the other end of which is used for separating the pole lugs of the top layer from the rest of the pole lugs.

3. The stack assembly of claim 2, wherein, The separation part comprises a first segment and a second segment connected in sequence in the direction away from the main body part; the second segment is in a plate structure, and the thickness of the first segment is greater than that of the second segment.

4. The stack assembly of claim 3, wherein A smooth transition structure is formed between the first segment and the second segment.

5. The stack assembly of claim 2, wherein, The separation part is provided with at least two separation parts, and the at least two separation parts are arranged side by side.

6. The stack assembly of claim 5, wherein, An arc-shaped transition structure is arranged between the two adjacent separation parts.

7. A stack assembly as claimed in any one of claims 2 to 6, wherein, The laminating table is provided with a groove, and the groove and the separation part are arranged oppositely.

8. The stack assembly of any one of claims 1 to 6, wherein, The laminating assembly further comprises two pressing knives, and the two pressing knives are movably arranged and arranged on the opposite sides of the partition plate.

9. The stack assembly of claim 8, wherein, The partition plate is connected with one of the pressing knives to move synchronously with the pressing knife.

10. A lamination apparatus characterized by, The application further relates to a laminating assembly comprising any one of the laminating assemblies according to claims 1 to 9.

Images