Integrated current collecting disc and cylindrical battery

Abstract

An integrated current collecting disc and a cylindrical battery. The integrated current collecting disc comprises two first current collecting pieces (100), two second current collecting pieces (200), a docking boss (300), and an insulating connecting member (400); the two first current collecting pieces (100), the two second current collecting pieces (200), the docking boss (300), and the insulating connecting member (400) form a disc structure; the first current collecting pieces (100) and the second current collecting pieces (200) are insulated from each other; the docking boss (300) is connected to the two first current collecting pieces (100); the docking boss (300) is located in the center of the disc structure; the two first current collecting pieces (100) are arranged opposite to each other by taking the docking boss (300) as a reference; the two second current collecting pieces (200) are arranged opposite to each other by taking the docking boss (300) as a reference; the arrangement direction of the two first current collecting pieces (100) is perpendicular to the arrangement direction of the two second current collecting pieces (200); the docking boss (300) is configured to be connected to a pole (500); the second current collecting pieces (200) are configured to be connected to a battery housing (540); and any one of a positive electrode tab (510) and a negative electrode tab (520) in a battery cell (550) is connected to the first current collecting pieces (100), and the other of the positive electrode tab (510) and the negative electrode tab (520) is connected to the battery housing (540).

Description

Integrated collector plate and cylindrical battery

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 13, 2023, with application number 202323050042.X. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of battery technology, for example, to an integrated current collecting plate and a cylindrical battery. Background Art

[0003] Cylindrical batteries are high-capacity and long-life batteries. In cylindrical batteries, the current collector is a key component that connects the internal tabs and electrodes of the battery.

[0004] In the related art, the current collector discs in cylindrical batteries include a positive current collector disc and a negative current collector disc with a disc structure. The positive current collector disc and the negative current collector disc are located at the two ends of the battery cell, respectively. The positive electrode tab of the battery cell is connected to the positive current collector disc, and the negative electrode tab of the battery cell is connected to the negative current collector disc, thereby achieving current transmission between the positive and negative electrodes of the battery cell. However, this method of separately providing the positive and negative current collector discs at the two ends of the battery cell is structurally complex, resulting in cumbersome packaging steps during the cylindrical battery packaging process. Furthermore, since the positive and negative current collector discs with disc structures need to be separately processed within the cylindrical battery, the production of the positive and negative current collector discs requires a large amount of material, resulting in high manufacturing costs.

[0005] Summary of the Invention

[0006] The present application provides an integrated current collecting tray and a cylindrical battery to realize the positive and negative current collection of the battery cells on the integrated current collecting tray, thereby reducing the number of current collecting trays, lowering the manufacturing cost, and simplifying the packaging steps of the cylindrical battery.

[0007] The present application provides an integrated current collecting plate, comprising two first current collecting plates, two second current collecting plates, a docking boss, and an insulating connector;

[0008] The two first current collecting pieces, the two second current collecting pieces, the docking boss, and the insulating connector together form a disc structure, and the first current collecting piece and the second current collecting piece are insulated from each other. The docking boss is connected to the two first current collecting pieces, and the docking boss is located at the center of the disc structure. The two first current collecting pieces are arranged relative to each other with the docking boss as a reference, and the two second current collecting pieces are arranged relative to each other with the docking boss as a reference. The arrangement direction of the two first current collecting pieces is perpendicular to the arrangement direction of the two second current collecting pieces.

[0009] The docking boss is configured to be connected to the pole, the second current collecting piece is configured to be connected to the battery shell, the first current collecting piece is configured to be connected to any one of the positive electrode tab and the negative electrode tab in the battery cell, and the other of the positive electrode tab and the negative electrode tab in the battery cell is connected to the battery shell.

[0010] As an optional solution, a first supporting part and a second supporting part are provided on the insulating connector, the first supporting part is configured to support the first current collecting piece, and the second supporting part is configured to support the second current collecting piece. Each of the first current collecting pieces is corresponding to a first supporting part, and each of the second current collecting pieces is corresponding to a second supporting part. A first avoidance area is opened in each of the first supporting parts, and a second avoidance area is opened in each of the second supporting parts.

[0011] As an optional solution, each of the first current collecting plates is provided with at least one first positioning hole, and each of the first supporting parts is provided with at least one first positioning protrusion, and the at least one first positioning hole is configured to dock with the at least one first positioning protrusion.

[0012] As an optional solution, each of the first current collecting pieces is provided with a plurality of first positioning holes at intervals, each of the first supporting parts is provided with a plurality of first positioning protrusions, and each of the first positioning holes is provided corresponding to one of the first positioning protrusions.

[0013] As an optional solution, the upper end surface of the first current collecting piece overlapped on the first supporting portion and the upper end surface of the second current collecting piece overlapped on the second supporting portion are both flush with the upper end surface of the insulating connector.

[0014] As an optional solution, a third positioning hole is formed on the insulating connector, and the third positioning hole is configured to be compatible with the positioning post on the battery cell or the battery cover.

[0015] As an optional solution, a weight-reducing through hole is provided on the insulating connector, and the weight-reducing through hole is directly opposite to the docking boss. A weight-reducing blind hole extending upward is provided on the lower end surface of the docking boss.

[0016] As an optional solution, each of the second current collecting pieces is provided with a docking structure at an outer end relative to the disc structure, and the docking structure is configured to be connected to the battery housing.

[0017] As an optional solution, each of the docking structures includes:

[0018] a vertical extension portion connected to the outer end of the corresponding second current collecting piece relative to the disc structure and extending upward;

[0019] A horizontal extension portion is connected to the upward extending end of the vertical extension portion, and the horizontal extension portion extends horizontally relative to the vertical extension portion in a direction away from the second current collecting sheet. The outer side wall of the vertical extension portion is configured to abut against the battery casing, and the lower end face of the horizontal extension portion is configured to overlap the battery casing.

[0020] The present application also provides a cylindrical battery, comprising the battery cover, the battery shell, the battery cell and the integrated current collecting tray as described above, wherein an opening is provided above the battery shell, the battery cell is accommodated in the battery shell along the opening, the integrated current collecting tray is provided above the battery cell, and the battery cover is configured to seal the opening of the battery shell in which the battery cell and the integrated current collecting tray are accommodated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of an integrated current collecting plate according to an embodiment of the present application;

[0022] FIG2 is an exploded schematic diagram of an integrated current collecting plate provided in an embodiment of the present application;

[0023] FIG3 is a second structural diagram of the integrated current collecting plate provided in an embodiment of the present application;

[0024] FIG4 is a schematic structural diagram of a first current collecting piece, a second current collecting piece, and a docking boss provided in an embodiment of the present application;

[0025] FIG5 is a schematic structural diagram of a battery provided in an embodiment of the present application;

[0026] FIG6 is a schematic structural diagram of another battery provided in an embodiment of the present application.

[0027] In the picture:

[0028] 1000, integrated collecting plate;

[0029] 100. First current collecting sheet; 110. First positioning hole;

[0030] 200, second current collecting sheet; 210, second positioning hole; 220, docking structure; 221, vertical extension portion; 222, horizontal extension portion;

[0031] 300, docking boss; 310, weight-reducing blind hole;

[0032] 400, insulating connector; 410, first supporting portion; 411, first positioning protrusion; 412, first avoidance area; 420, second supporting portion; 421, second positioning protrusion; 422, second avoidance area; 430, third positioning hole; 440, weight-reducing through hole;

[0033] 500, pole; 510, positive pole tab; 520, negative pole tab; 530, battery cover; 540, battery case; 550, battery cell. DETAILED DESCRIPTION

[0034] The technical solution of this application is explained below with reference to the accompanying drawings and through specific implementation methods.

[0035] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., regarding orientations or positions, are based on the orientations or positions shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0038] As shown in Figures 1 to 6, this embodiment provides an integrated current collecting disc 1000. The integrated current collecting disc 1000 includes two first current collecting pieces 100, two second current collecting pieces 200, a docking boss 300, and an insulating connector 400. The two first current collecting pieces 100, the two second current collecting pieces 200, the docking boss 300, and the insulating connector 400 together form a disc structure, and the first current collecting piece 100 and the second current collecting piece 200 are insulated from each other. The docking boss 300 is connected to the two first current collecting pieces 100 at the same time. The docking boss 300 is located at the center of the disc structure. The two first current collecting pieces 100 are connected to the two second current collecting pieces 200. 00 is relatively arranged with the docking boss 300 as the reference, the two second current collecting pieces 200 are relatively arranged with the docking boss 300 as the reference, the setting direction of the two first current collecting pieces 100 and the setting direction of the two second current collecting pieces 200 are perpendicular to each other, the docking boss 300 can be connected to the pole 500, the second current collecting piece 200 can be connected to the battery shell 540, any one of the positive pole tab 510 and the negative pole tab 520 in the battery cell 550 is connected to the first current collecting piece 100, and the other is connected to the battery shell 540.

[0039] The integrated current collecting disc 1000 is formed into a disc structure by combining two first current collecting sheets 100, two second current collecting sheets 200, a docking boss 300 and an insulating connector 400 to ensure mutual insulation between the first current collecting sheet 100 and the second current collecting sheet 200, connecting the docking boss 300 to the two first current collecting sheets 100 at the same time and setting the docking boss 300 in the middle of the disc structure, connecting the docking boss 300 to the pole 500, connecting any one of the positive electrode tab 510 and the negative electrode tab 520 inside the battery to the first current collecting sheet 100, and connecting the other to the battery shell 540, and connecting the second current collecting sheet 200 to the battery shell 540. They are connected to each other to form a positive electrode current collecting part and a negative electrode current collecting part on the same disc structure, thereby improving the current collecting effect. There is no need to set up two current collecting discs, reducing the number of current collecting discs, and thus reducing the materials required to produce the integrated current collecting disc 1000, reducing manufacturing costs, and making the two first current collecting pieces 100 relatively arranged with the docking boss 300 as a reference, and the two second current collecting pieces 200 relatively arranged with the docking boss 300 as a reference, and ensuring that the setting direction of the two first current collecting pieces 100 and the setting direction of the two second current collecting pieces 200 are perpendicular to each other, which can further improve the aesthetics of the integrated current collecting disc 1000 while ensuring the current collecting effect.

[0040] In this embodiment, the first current collecting sheet 100, the second current collecting sheet 200, and the docking boss 300 are all made of copper or aluminum. When the first current collecting sheet 100 is connected to the positive electrode tab 510, the negative electrode tab 520 is connected to the battery housing 540. To improve the battery life, the battery housing 540 is made of steel, the first current collecting sheet 100 and the docking boss 300 are both made of aluminum, and the second current collecting sheet 200 is made of copper. When the first current collecting sheet 200 is connected to the negative electrode tab 520, the positive electrode tab 510 is connected to the battery housing 540. To improve the battery life, the battery housing 540 is made of aluminum, the first current collecting sheet 100 and the docking boss 300 are both made of copper, and the second current collecting sheet 200 is made of aluminum.

[0041] Furthermore, to further reduce the weight of the docking boss 300 and the insulating connector 400, as shown in Figures 3 and 4 , a weight-reducing through-hole 440 is provided in the insulating connector 400, facing the docking boss 300. An upwardly extending weight-reducing blind hole 310 is provided on the lower end surface of the docking boss 300. The provision of the weight-reducing through-hole 440 in the insulating connector 400 and the upwardly extending weight-reducing blind hole 310 on the lower end surface of the docking boss 300 reduces the production costs of both the insulating connector 400 and the docking boss 300.

[0042] In this embodiment, the two first current collecting pieces 100 are integrally formed with the docking boss 300. The raw material for the production of the two first current collecting pieces 100 and the docking boss 300 is a metal plate. The metal plate is punched and cut into a pre-processed piece having the shape of the two first current collecting pieces 100, and then the docking boss 300 is punched out on the pre-processed piece to complete the processing and forming of the two first current collecting pieces 100 and the docking boss 300. By integrally processing the two second current collecting pieces 100 and the docking boss 300, in the actual processing process, it is necessary to cut out a pre-processed piece having the shape of the two first current collecting pieces 100 on the metal plate. Compared with the related art that requires cutting into circular processing pieces on the metal plate, the number of pre-processed pieces having the shape of the two first current collecting pieces 100 cut out of the metal plate of the same area is greater than the number of circular processing pieces cut out, which can improve the material utilization rate of the metal plate and further save manufacturing costs.

[0043] As shown in Figure 2, a first supporting portion 410 and a second supporting portion 420 are provided on the insulating connector 400. The first supporting portion 410 is configured to support the first current collecting piece 100, and the second supporting portion 420 is configured to support the second current collecting piece 200. Each first current collecting piece 100 is corresponding to a first supporting portion 410, and each second current collecting piece 200 is corresponding to a second supporting portion 420. A first avoidance area 412 is opened in each first supporting portion 410, and a second avoidance area 422 is opened in each second supporting portion 420. By arranging a first supporting portion 410 and a second supporting portion 420 on the insulating connector 400, the fixing effect of the first current collecting sheet 100 and the second current collecting sheet 200 on the insulating connector 400 can be ensured, and a first avoidance area 412 is opened in each first supporting portion 410 and a second avoidance area 422 is opened in each second supporting portion 420. This not only effectively reduces the weight of the insulating connector 400, but also provides space for the connection between the positive electrode tab 510 or the negative electrode tab 520 and the lower end of the first current collecting portion 100. The structure is simple and the design is ingenious.

[0044] Each first current collecting piece 100 is provided with at least one first positioning hole 110, and each first supporting portion 410 is provided with at least one first positioning protrusion 411. The at least one first positioning hole 110 cooperates with the at least one first positioning protrusion 411. By providing the first positioning hole 110 on each first current collecting piece 100 and providing the first positioning protrusion 411 on each first supporting portion 410, and by cooperating with the first positioning hole 110 and the first positioning protrusion 411, the first current collecting piece 100 can be accurately positioned on the first supporting portion 410.

[0045] Optionally, each first current collecting piece 100 is provided with a plurality of first positioning holes 110 at intervals, each first supporting portion 410 is provided with a plurality of first positioning protrusions 411, and each first positioning hole 110 is provided corresponding to a first positioning protrusion 411. By providing a plurality of first positioning holes 110 at intervals on each first current collecting piece 100 and ensuring that each first positioning hole 110 is provided corresponding to a first positioning protrusion 411, the docking accuracy between the first current collecting piece 100 and the first supporting portion 410 can be further improved. In this embodiment, each first current collecting piece 100 is provided with four first positioning holes 110 at intervals, and each first supporting portion 410 is provided with four first positioning protrusions 411. In other embodiments, the number of first positioning holes 110 on each first current collecting plate 100 and the number of first positioning protrusions 411 on each first supporting portion 410 can also be adjusted according to actual needs. It is only necessary to ensure that each first positioning hole 110 is set corresponding to a first positioning protrusion 411. This embodiment does not make specific limitations.

[0046] Similarly, a plurality of second positioning holes 210 are also spaced apart on the second current collecting piece 200, and a plurality of second positioning protrusions 421 are also correspondingly provided on the second supporting portion 420, and each second positioning hole 210 is correspondingly provided with a second positioning protrusion 421. In this embodiment, two second positioning holes 210 are spaced apart on each second current collecting piece 200, and two second positioning protrusions 421 are correspondingly provided on each second supporting portion 420. In other embodiments, the number of second positioning holes 210 on each second current collecting piece 200 and the number of second positioning protrusions 421 on each second supporting portion 420 can also be adjusted according to actual needs, as long as each second positioning hole 210 is correspondingly provided with a second positioning protrusion 421. This embodiment does not impose any specific limitations.

[0047] In addition, the upper end surface of the first current collecting plate 100 overlapped on the first supporting part 410 and the upper end surface of the second current collecting plate 200 overlapped on the second supporting part 420 are both flush with the upper end surface of the insulating connector 400, so as to reduce the overall thickness of the integrated current collecting plate 1000 and save installation space.

[0048] Optionally, as shown in Figures 1 and 3, each second current collecting piece 200 is provided with a docking structure 220 at the outer end relative to the disc structure, and the docking structure 220 is connected to the battery housing 540. By providing the docking structure 220 to connect to the battery housing 540, the connection effect between the second current collecting piece 200 and the battery housing 540 can be improved.

[0049] Each docking structure 220 includes a vertical extension portion 221 and a horizontal extension portion 222, wherein the vertical extension portion 221 is connected to the outer end of the corresponding second current collecting piece 200 relative to the disc structure and extends upward, and the horizontal extension portion 222 is connected to the upward extending end of the vertical extension portion 221, and the horizontal extension portion 222 extends horizontally relative to the vertical extension portion 221 in a direction away from the second current collecting piece 200, the outer side wall of the vertical extension portion 221 can abut against the battery housing 540, and the lower end face of the horizontal extension portion 222 can overlap the battery housing 540. By configuring the docking structure 220 to include a vertical extension portion 221 connected to the outermost end of the second current collecting piece 200 and extending upward relative to the second current collecting piece 200, and a horizontal extension portion 222 connected to the upwardly extending end of the vertical extension portion 221 and extending horizontally outward relative to the second current collecting piece 200, the outer side wall of the vertical extension portion 221 is abutted against the battery shell 540, and the lower end face of the horizontal extension portion 222 can overlap the battery shell 540, thereby ensuring the connection stability between the second current collecting piece 200 and the battery shell 540.

[0050] In this embodiment, the second current collecting sheet 200 is integrally formed. The metal plate is punched and cut into a pre-processed sheet having the shape of the second current collecting sheet 200, and then the docking structure 220 is punched out on the pre-processed sheet to complete the processing of the second current collecting sheet 200. By integrally forming the second current collecting sheet 200, in the actual processing process, it is necessary to cut a pre-processed sheet having the shape of the second current collecting sheet 200 on the metal plate. Compared with the related art that requires cutting a circular processing sheet on the metal plate, the number of pre-processed sheets having the shape of the second current collecting sheet 200 cut out on the metal plate of the same area is greater than the number of circular processing sheets cut out, which can improve the material utilization rate of the metal plate and further save manufacturing costs.

[0051] In order to improve the fixing effect of the integrated current collecting plate 1000 in the battery, a third positioning hole 430 is opened on the insulating connector 400. The third positioning hole 430 can be adapted to the positioning column on the battery cell 550 or the battery cover 530.

[0052] This embodiment also provides a cylindrical battery. The cylindrical battery includes a battery housing 540, a battery cell 550, a battery cover 530, and the aforementioned integrated current collecting tray 1000. The battery housing 540 has an opening at the top, and the battery cell 550 is accommodated in the battery housing 540 along the opening. The integrated current collecting tray 1000 is disposed above the battery cell 550, and the battery cover 530 is configured to seal the opening of the battery housing 540 that accommodates the battery cell 550 and the integrated current collecting tray 1000.

[0053] By applying the above-mentioned integrated current collecting plate 1000, the cylindrical battery can form a positive electrode current collecting portion and a negative electrode current collecting portion on the same integrated current collecting plate 1000, thereby improving the current collecting effect. There is no need to set up two current collecting plates, reducing the number of current collecting plates, and thus reducing the materials required to produce the integrated current collecting plate 1000, reducing manufacturing costs. In addition, the two first current collecting pieces 100 are relatively arranged with the docking boss 300 as a reference, and the two second current collecting pieces 200 are relatively arranged with the docking boss 300 as a reference, and it is ensured that the setting direction of the two first current collecting pieces 100 and the setting direction of the two second current collecting pieces 200 are perpendicular to each other. While ensuring the current collecting effect, it can further improve the aesthetics of the integrated current collecting plate 1000 in the cylindrical battery.

Claims

1. An integrated current collecting plate, comprising two first current collecting plates (100), two second current collecting plates (200), a docking boss (300) and an insulating connector (400); The two first current collecting sheets (100), the two second current collecting sheets (200), the docking boss (300) and the insulating connector (400) together form a disc structure, and the first current collecting sheets (100) and the second current collecting sheets (200) are insulated from each other, the docking boss (300) is connected to the two first current collecting sheets (100), the docking boss (300) is located at the center of the disc structure, the two first current collecting sheets (100) are relatively arranged with the docking boss (300) as a reference, the two second current collecting sheets (200) are relatively arranged with the docking boss (300) as a reference, and the arrangement direction of the two first current collecting sheets (100) and the arrangement direction of the two second current collecting sheets (200) are perpendicular to each other; The docking boss (300) is configured to be connected to the pole (500), the second current collector (200) is configured to be connected to the battery housing (540), the first current collector (100) is configured to be connected to any one of the positive pole tab (510) and the negative pole tab (520) in the battery cell (550), and the other of the positive pole tab (510) and the negative pole tab (520) in the battery cell (550) is connected to the battery housing (540).

2. The integrated collector plate according to claim 1, wherein: The insulating connector (400) is provided with a first supporting portion (410) and a second supporting portion (420); the first supporting portion (410) is configured to support the first current collecting piece (100); the second supporting portion (420) is configured to support the second current collecting piece (200); each of the first current collecting pieces (100) is correspondingly arranged with a first supporting portion (410); each of the second current collecting pieces (200) is correspondingly arranged with a second supporting portion (420); each of the first supporting portions (410) is provided with a first avoidance area (412); and each of the second supporting portions (420) is provided with a second avoidance area (422).

3. The integrated collector plate according to claim 2, wherein: Each of the first current collecting plates (100) is provided with at least one first positioning hole (110), and each of the first supporting portions (410) is provided with at least one first positioning protrusion (411), and the at least one first positioning hole (110) is configured to dock with the at least one first positioning protrusion (411).

4. The integrated collecting plate according to claim 3, wherein: A plurality of first positioning holes (110) are arranged at intervals on each of the first current collecting sheets (100), a plurality of first positioning protrusions (411) are arranged on each of the first supporting portions (410), and each of the first positioning holes (110) is arranged corresponding to a first positioning protrusion (411).

5. The integrated collector plate according to claim 2, wherein: The upper end surface of the first current collecting sheet (100) overlapped on the first supporting portion (410) and the upper end surface of the second current collecting sheet (200) overlapped on the second supporting portion (420) are both flush with the upper end surface of the insulating connector (400).

6. The integrated collector plate according to any one of claims 1 to 5, wherein: The insulating connector (400) is provided with a third positioning hole (430), and the third positioning hole (430) is configured to be compatible with a positioning column on the battery cell (550) or the battery cover plate (530).

7. The integrated collector plate according to any one of claims 1 to 5, wherein: The insulating connector (400) is provided with a weight-reducing through hole (440), the weight-reducing through hole (440) is directly opposite to the docking boss (300), and the lower end surface of the docking boss (300) is provided with a weight-reducing blind hole (310) extending upward.

8. The integrated collector plate according to any one of claims 1 to 5, wherein: Each of the second current collecting pieces (200) is provided with a docking structure (220) at an outer end relative to the disc structure, and the docking structure (220) is arranged to be connected to the battery housing (540).

9. The integrated collecting plate according to claim 8, wherein: Each of the docking structures (220) comprises: A vertical extension portion (221) connected to the outer end of the corresponding second current collecting piece (200) relative to the disc structure and extending upward; A horizontal extension portion (222) is connected to the upwardly extending end of the vertical extension portion (221), and the horizontal extension portion (222) extends horizontally relative to the vertical extension portion (221) in a direction away from the second current collecting sheet (200). The outer side wall of the vertical extension portion (221) is configured to be able to abut against the battery housing (540), and the lower end surface of the horizontal extension portion (222) is configured to be able to overlap the battery housing (540).

10. A cylindrical battery, comprising the battery cover (530), the battery shell (540), the battery cell (550) and the integrated current collecting tray according to any one of claims 1 to 9, wherein an opening is provided above the battery shell (540), the battery cell (550) is accommodated in the battery shell (540) along the opening, the integrated current collecting tray is provided above the battery cell (550), and the battery cover (530) is provided to seal the opening of the battery shell (540) accommodating the battery cell (550) and the integrated current collecting tray.

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