Current collector disc, battery, and electrical device

Abstract

A current collector disc (100), a battery, and an electrical device, relating to the technical field of batteries. The current collector disc comprises: a main disc body (10), a connecting member (20), and at least one interconnecting member (30). Two opposite surfaces of the main disc body in the thickness direction are a first surface (10a) and a second surface (10b), and the first surface of the main disc body is used for connecting to a battery cell. The connecting member is arranged close to the second surface of the main disc body, and the connecting member is used for connecting to a case or a pole of a battery. The interconnecting member is connected between the main disc body and the connecting member, the interconnecting member comprises a hot melt portion (31), the hot melt portion has a thermal failure temperature, and when the temperature of the hot melt portion is greater than the thermal failure temperature, the interconnecting member is disconnected at the hot melt portion.

Description

Current collector plate, battery and electric device

[0001] Cross-reference to related applications

[0002] The present application is based on and claims priority to Chinese Patent Application No. 202410878055.6, filed on June 28, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of batteries, in particular to a current collector plate, a battery and an electric device. BACKGROUND

[0004] With the increasing application of batteries in electric bicycles, electric vehicles and large-scale energy storage power stations, the industry has put forward higher and higher requirements for the specifications, sizes, technical performances and reliability of batteries. Under the influence of factors such as short circuit inside the battery and easy heating of the battery cell due to long-term use of the battery, it is easy to cause safety risks such as battery expansion, combustion or explosion due to excessive temperature inside the battery. SUMMARY

[0005] The present application aims to at least partially solve one of the technical problems in the related art.

[0006] To this end, one object of the present application is to provide a current collector plate.

[0007] Another object of the present application is to provide a battery having the above-mentioned current collector plate.

[0008] Still another object of the present application is to provide an electric device having the above-mentioned battery.

[0009] According to the current collector plate of the embodiment of the present application, the current collector plate comprises a main plate body, the main plate body has a first surface and a second surface on opposite sides in the thickness direction, the first surface of the main plate body is used to connect a battery cell, a connecting piece is arranged close to the second surface of the main plate body, the connecting piece is used to connect a shell or a pole of the battery, at least one interconnecting piece is connected between the main plate body and the connecting piece, the interconnecting piece comprises a hot melt part, the hot melt part has a hot failure temperature, and the interconnecting piece is disconnected at the hot melt part when the temperature of the hot melt part is greater than the hot failure temperature.

[0010] According to the current collector plate, the main disc body is connected to the connecting piece through the interlinking piece, and the main disc body is in electrical contact with the battery cell, the connecting piece is in electrical contact with the shell or the pole, and the battery cell and the shell or the pole are in electrical contact through the current collector plate, that is, the current between the battery cell and the shell or the pole passes through the interlinking piece. The heat melting part is arranged in the interlinking piece, when the current passing through the interlinking piece increases or the heat transferred to the interlinking piece by the battery cell increases, the temperature of the heat melting part gradually increases, until the temperature of the heat melting part is greater than the heat failure temperature, so that the interlinking piece is disconnected at the heat melting part, thereby the electrical connection between the main disc body and the connecting piece is disconnected, and the current between the battery cell and the shell or the pole is interrupted, so as to avoid the temperature of the electrical connection path between the battery cell and the shell or the pole from further increasing, reduce or avoid the safety risks such as expansion, combustion or explosion of the battery cell caused by overheating of the battery cell, and improve the use safety of the battery.

[0011] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a schematic view of a current collector plate according to an embodiment of the present application;

[0013] Fig. 2 is a top view of the current collector plate of the embodiment shown in Fig. 1;

[0014] Fig. 3 is a side view of the current collector plate of the embodiment shown in Fig. 1;

[0015] Fig. 4 is an enlarged view of the structure shown at A in Fig. 3;

[0016] Fig. 5 is a schematic view of a current collector plate according to an embodiment of the present application.

[0017] Fig. 1 is a schematic view of a current collector plate according to an embodiment of the present application; DETAILED DESCRIPTION

[0018] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0019] A current collector plate 100, a battery and an electric device according to embodiments of the present application are described below with reference to the accompanying drawings.

[0020] As shown in FIGS. 1-3, the current collecting plate 100 according to the embodiment of the present application comprises a main plate body 10, a connecting piece 20 and at least one interconnecting piece 30. The main plate body 10 has a first surface 10a and a second surface 10b opposite to each other in the thickness direction, and the first surface 10a of the main plate body 10 is used to connect the battery cell. The connecting piece 20 is arranged close to the second surface 10b of the main plate body 10, and the connecting piece 20 is used to connect the shell or the pole of the battery. The interconnecting piece 30 is connected between the main plate body 10 and the connecting piece 20, and the interconnecting piece 30 comprises a heat melting portion 31 having a heat failure temperature, and the interconnecting piece 30 is disconnected at the heat melting portion 31 when the temperature of the heat melting portion 31 is greater than the heat failure temperature.

[0021] It can be understood that the main plate body 10, the connecting piece 20 and the interconnecting piece 30 are all electrically conductive, and when the current collecting plate 100 passes through the current, the heat generation of the current collecting plate 100 gradually increases, i.e. the temperature of the current collecting plate 100 increases with the increase of the current.

[0022] The current collecting plate 100 of the present application connects the main plate body 10 and the connecting piece 20 through the interconnecting piece 30, realizes the electrical conduction between the main plate body 10 and the connecting piece 20, and the main plate body 10 is electrically connected with the battery cell, and the connecting piece 20 is electrically connected with the shell or the pole, and the electrical conduction between the battery cell and the shell or the pole is realized through the current collecting plate 100, i.e. the current between the battery cell and the shell or the pole passes through the interconnecting piece 30. The heat melting portion 31 is arranged in the interconnecting piece 30, and when the current passing through the interconnecting piece 30 increases or the heat transferred to the interconnecting piece 30 from the battery cell increases, the temperature of the heat melting portion 31 gradually increases, until the temperature of the heat melting portion 31 is greater than the heat failure temperature, so that the interconnecting piece 30 is disconnected at the heat melting portion 31, and the electrical conduction between the main plate body 10 and the connecting piece 20 is disconnected, and the current interruption between the battery cell and the shell or the pole is realized, so as to avoid the further increase of the temperature of the conduction path between the battery cell and the shell or the pole, reduce or avoid the safety risks such as expansion, combustion or explosion of the battery cell caused by the overheating of the battery cell, and improve the use safety of the battery.

[0023] It should be noted that during the installation of the current collecting plate 100, the connecting piece 20 is first connected to the shell or the pole of the battery, and then the main plate body 10 is connected to the battery cell.

[0024] It should be noted that the factors leading to the temperature of the thermal fuse 31 reaching the thermal failure temperature are not limited. For example, due to the short circuit generated in the battery, the current passing through the current collector 100 increases rapidly, thereby causing the temperature of the thermal fuse 31 to rapidly increase. For another example, due to the long-term use of the battery, the battery cell ages, and the battery cell is prone to heat generation, thereby causing the overall temperature of the battery to increase, and when the heat of the battery cell is conducted to the current collector 100, the temperature of the thermal fuse 31 increases, at this time, the thermal fuse 31 is disconnected, and the battery cell is also protected from power-off, thereby reducing or avoiding further heat generation of the battery cell. For another example, the external environment temperature of the battery is too high, thereby causing the battery cell or the current collector 100 to easily generate heat.

[0025] In the present application, the position of the thermal fuse 31 on the interconnecting piece 30 is not limited. For example, the cross-sectional area of the interconnecting piece 30 between the two ends of the connection main disc body 10 and the connecting piece 20 is the same, and the thermal fuse 31 is formed on all parts of the interconnecting piece 30 between the two ends of the connection main disc body 10 and the connecting piece 20.

[0026] In some embodiments, the connecting piece 20 is located on one side of the surface of the main disc body 10 and is spaced apart from the second surface 10b, so that the main disc body 10 and the connecting piece 20 are spaced apart, and direct electrical contact between the main disc body 10 and the connecting piece 20 is ensured. The main disc body 10 and the connecting piece 20 are electrically connected through the interconnecting piece 30. When the interconnecting piece 30 is disconnected, the electrical conduction between the main disc body 10 and the connecting piece 20 is disconnected.

[0027] In some embodiments, the main disc body 10, the connecting piece 20, and the interconnecting piece 30 are made of the same material, and the overcurrent area of the interconnecting piece 30 at least at the thermal fuse 31 is smaller than the overcurrent area of the main disc body 10 and the connecting piece 20.

[0028] It can be understood that the current intensity passing through the main disc body 10, the interconnecting piece 30, and the connecting piece 20 is the same. The overcurrent area of the interconnecting piece 30 is smaller than the overcurrent area of the main disc body 10 and the connecting piece 20, so that the resistance of the interconnecting piece 30 at the thermal fuse 31 is greater than the resistance of the main disc body 10 and the connecting piece 20.

[0029] Therefore, when the current is conducted in the main disc body 10, the interconnecting piece 30, and the connecting piece 20, under the premise that the main disc body 10, the connecting piece 20, and the interconnecting piece 30 are made of the same material, the temperature of the thermal fuse 31 with the largest resistance increases the fastest, that is, the temperature of the thermal fuse 31 is greater than the temperature of the main disc body 10 and the connecting piece 20. When the temperature of the thermal fuse 31 reaches the thermal failure temperature, the interconnecting piece 30 is disconnected at the thermal fuse 31, and at this time, the temperature of the main disc body 10 and the connecting piece 20 is lower than the thermal failure temperature, thereby enabling the interconnecting piece 30 to be disconnected at the thermal fuse 31 when the battery overheats to cause a safety risk, and ensuring the current interruption protection effect of the current collector 100 when the thermal fuse 31 overheats.

[0030] In some embodiments, the thickness of the interconnecting piece 30, the connecting piece 20 and the main disc body 10 is the same, and the width of the interconnecting piece 30 is 0.1mm-2mm.

[0031] In some embodiments, the main disc body 10 is welded to the cell, and the connecting piece 20 is welded to the shell of the battery or the cell, which can ensure the stability of the connection between the main disc body 10 and the cell and the connection between the connecting piece 20 and the shell of the battery or the cell.

[0032] In some embodiments, the interconnecting piece 30 is at least a low-melting-point material at the hot-melt part 31, and the main disc body 10 and the connecting piece 20 are high-melting-point materials, so that the hot-failure temperature of the hot-melt part 31 is lower than the temperature when the battery is overheated, so that when the temperature of the battery is too high and there is a safety risk, the hot-melt part 31 with a lower hot-failure temperature can be disconnected, thereby ensuring the current-breaking protection effect of the current collector 100 when the hot-melt part 31 is overheated.

[0033] In some embodiments, the hot-failure temperature is greater than or equal to 150℃, so that when the temperature of the hot-melt part 31 is greater than or equal to 150℃, the interconnecting piece 30 is disconnected at the hot-melt part 31, thereby ensuring the safety of the battery in use.

[0034] In some embodiments, the number of interconnecting pieces 30 is multiple and spaced apart, and the minimum distance between the two adjacent interconnecting pieces 30 is less than or equal to 10mm. Thus, the current carrying capacity between the main disc body 10 and the connecting piece 20 can be improved, and the multiple interconnecting pieces 30 can disperse the current carrying capacity and reduce the heat generation of the interconnecting piece 30.

[0035] In some embodiments, the volume of the interconnecting piece 30 accounts for 0.04%-2% of the volume of the current collector 100. Thus, while meeting the overcurrent capacity and fuse requirements of the interconnecting piece 30, the material cost can be saved, and the manufacturing cost of the current collector 100 can be reduced.

[0036] In some embodiments, the width of the interconnecting piece 30 is 1mm-15mm. Thus, the interconnecting piece 30 can be effectively melted and disconnected at the hot-failure temperature while meeting the overcurrent capacity.

[0037] It should be noted that when the number of interconnecting pieces 30 is multiple and spaced apart, the width of each interconnecting piece 30 is 1mm-15mm.

[0038] In some embodiments, as shown in FIGS. 1, 2 and 5, the interconnecting piece 30 includes a bent section 32, the main disc body 10 includes a bent part 11, and the bent section 32 is connected between the bent part 11 and the hot-melt part 31. The main disc body 10 is provided with notches 12 on the edges on both sides of the bent part 11.

[0039] It can be understood that the position of the main disc body 10 corresponds to the electrode core arrangement, the position of the connecting piece 20 corresponds to the shell or pole arrangement, and the relative position of the main disc body 10 and the connecting piece 20 is easily changed due to the different sizes of the battery or the deviation of the installation position, that is, the relative position of the main disc body 10 and the connecting piece 20 is easily changed.

[0040] Therefore, the interconnecting piece 30 is connected to the bending part 11 of the main disc body 10 at the bending section 32, so that the interconnecting piece 30 can be bent relative to the main disc body 10, and by adjusting the bending degree of the interconnecting piece 30, the relative position of the main disc body 10 and the connecting piece 20 can be adjusted, so that when the relative position of the main disc body 10 and the connecting piece 20 changes, the interconnecting piece 30 can correspondingly adjust its bending degree, so that the two ends of the interconnecting piece 30 can be stably connected to the main disc body 10 and the connecting piece 20 respectively, and the electrical connection stability of the main disc body 10 and the connecting piece 20 through the interconnecting piece 30 is ensured.

[0041] At the same time, the current collecting tab can be suitable for batteries of different sizes, improving the versatility of the current collecting tab.

[0042] In addition, the main disc body 10 is provided with notches 12 on the edges on both sides of the bending part 11, which can reduce or avoid the main disc body 10 itself blocking the bending of the bending part 11, so as to ensure the stable bending cooperation of the main disc body 10 and the bending section 32 of the interconnecting piece 30 at the bending part 11.

[0043] In some embodiments, as shown in FIGS. 2 and 5, the center of the main disc body 10 is provided with a through positioning hole 13 for coaxial arrangement with the electrode core.

[0044] It can be understood that when the main disc body 10 is connected to the electrode core, the main disc body 10 will block the view of the electrode core, making it difficult to determine the position of the main disc body 10 relative to the electrode core.

[0045] Therefore, the positioning hole 13 penetrates the main disc body 10, and when the main disc body 10 is connected to the electrode core, the position of the main disc body 10 relative to the electrode core can be observed through the positioning hole 13, and the positioning of the main disc body 10 at the connection position of the electrode core is realized through the positioning hole 13, thereby reducing or avoiding the deviation of the main disc body 10 at the connection position of the electrode core, and ensuring the stability of the electrical contact between the main disc body 10 and the electrode core.

[0046] Further, when the electrode core is a winding core, the winding core has a hollow shaft extending in the axial direction, and the positioning hole 13 is coaxially arranged with the hollow shaft.

[0047] In some embodiments, as shown in FIGS. 1-3, the connecting piece 20 is provided with at least one first through hole 21, and the main disc body 10 is provided with at least one second through hole 14.

[0048] It can be understood that after the connecting piece 20 is connected to the shell or the pole of the battery, the main disc body 10 is connected to the electrode core, and the shell or the pole is installed on the battery, it is necessary to inject the electrolyte into the battery.

[0049] Therefore, the electrolyte injected into the battery from the shell or the pole can flow to the electrode core through the first through hole 21 and the second through hole 14, so as to realize the injection of the electrolyte in the battery. At the same time, the electrolyte can flow on both sides of the main disc body 10 through the second through hole 14, so as to ensure that the electrolyte can flow to the electrode core sufficiently.

[0050] In some embodiments, when the electrolyte is injected, the electrolyte mainly flows to the electrode core through the first through hole 21, and the second through hole 14 plays a supplementary role in the injection of the electrolyte in the battery. The heat inside the battery is mainly transferred to the outside of the battery through the second through hole 14, that is, the second through hole 14 is mainly used for heat dissipation of the battery.

[0051] In some embodiments, the ratio of the aperture of the first through hole 21 to the aperture of the second through hole 14 is 1:1. Therefore, the flow efficiency of the electrolyte in the first through hole 21 and the second through hole 14 can be ensured, and the heat dissipation efficiency of the battery through the second through hole 14 can be ensured.

[0052] It should be noted that the apertures of the first through hole 21 and the second through hole 14 refer to different things according to different shapes of the first through hole 21 and the second through hole 14. For example, when the first through hole 21 and the second through hole 14 are circular, the apertures are diameters. For another example, when the first through hole 21 and the second through hole 14 are rectangular, the apertures are the lengths of the rectangles. For another example, when the first through hole 21 and the second through hole 14 are elliptical, the apertures are the major axes of the ellipses.

[0053] In some embodiments, the number of the second through holes 14 is multiple, and the multiple second through holes 14 are arranged at intervals along the circumference of the main disc body 10. Therefore, the multiple second through holes 14 can be used for the flow of the electrolyte and the dissipation of the heat inside the battery at different positions in the circumferential direction of the main disc body 10, so as to improve the heat dissipation efficiency of the battery and the flow efficiency of the electrolyte.

[0054] In some embodiments, the main disc body 10 forms multiple ribs 15 on the first surface 10a, at least two ribs 15 are connected to form a sink 16 on the side facing the center of the main disc body 10, and the second through hole 14 is located in the sink 16.

[0055] It can be understood that when the main disc body 10 is connected to the end of the electrode core, at least part of the surface between the end surface of the electrode core and the main disc body 10 is in contact.

[0056] Thus, by arranging the protruding ribs 15 on the first surface 10a of the main disc body 10, the protruding ribs 15 can abut against the battery cell when the main disc body 10 is connected with the battery cell, so that a flow space for electrolyte can be formed between the sunken platform 16 and the end surface of the battery cell, and the electrolyte can flow between the main disc body 10 and the end surface of the battery cell, thereby improving the flow efficiency of the electrolyte in the battery and ensuring the wetting effect of the electrolyte on the battery cell.

[0057] In some embodiments, the protruding ribs 15 have a height of 0.1mm-1mm above the first surface 10a.

[0058] In some embodiments, the sunken platforms 16 are arranged in a radial manner, and each of the sunken platforms 16 is provided with a second through hole 14. Thus, the electrolyte can flow in a radial manner on the end surface of the battery, so that the electrolyte can flow into the battery cell from different positions on the end surface of the battery, thereby further improving the flow efficiency of the electrolyte in the battery and ensuring the wetting effect of the electrolyte on the battery cell.

[0059] In some embodiments, as shown in FIG. 3 and FIG. 4, the main disc body 10 is provided with a plurality of protruding ribs 15 on the first surface 10a, and the protruding ribs 15 form a welding area 17 for welding the battery cell.

[0060] It can be understood that when the main disc body 10 is attached to the end surface of the battery cell on the first surface 10a, the unevenness of the end surface of the battery cell can cause a gap between the first surface 10a and the end surface of the battery cell at some local positions, thereby affecting the welding effect of the end surface of the battery cell and the first surface 10a.

[0061] Thus, the main disc body 10 is welded to the battery cell at the welding area 17, and the contact area between the main disc body 10 and the end surface of the battery cell is small due to the protruding ribs 15, so that the tightness of the main disc body 10 on the end surface of the battery cell at the welding area 17 can be improved, thereby improving the firmness of the welding of the main disc body 10 on the end surface of the battery cell at the welding area 17.

[0062] In some embodiments, the main disc body 10 is provided with a groove 18 on the second surface 10b corresponding to the protruding ribs 15. Thus, the protruding ribs 15 can be formed by stamping, so that the process for forming the protruding ribs 15 can be simplified, and the main disc body 10 does not need to be cut, and the thickness of the main disc body 10 can be smaller, thereby reducing the material cost and process cost of the main disc body 10.

[0063] In some embodiments, as shown in FIG. 5, the current collecting disc 100 is a stamped part, and the main disc body 10, the connecting piece 20 and the interconnecting piece 30 are integrally formed parts. Thus, the manufacturing process of the current collecting disc 100 can be simplified, and the current collecting disc 100 does not need to be cut, and the thickness of the current collecting disc 100 can be smaller, thereby reducing the material cost and process cost of the current collecting disc 100.

[0064] In some embodiments, the interconnector 30 comprises a bending section 32, and the main plate body 10 comprises a bending portion 11, and the bending section 32 is connected to the bending portion 11.

[0065] It can be understood that the current collecting plate 100 is flat after being punched, and when the current collecting plate 100 is installed in the battery, the connector 20 needs to be arranged on one side of the second surface 10b of the main plate body 10 and spaced apart from the second surface 10b of the main plate body 10.

[0066] Therefore, the main plate body 10 and the connector 20 can be bent through the bending portion 11 and the bending section 32, so that the position of the connector 20 relative to the main plate body 10 is adjustable, and the connector 20 can be arranged on one side of the second surface 10b of the main plate body 10 and spaced apart from the second surface 10b of the main plate body 10, while the interconnector 30 is connected to the main plate body 10 and the connector 20 at two ends.

[0067] The battery according to the embodiment of the present application comprises a shell, a battery cell, and the current collecting plate 100 according to the above embodiment. The shell comprises a receiving cavity, and the battery cell is arranged in the receiving cavity. The main plate body 10 of the current collecting plate 100 is connected to the battery cell, and the connector 20 is connected to the shell.

[0068] The battery according to the present application uses the current collecting plate 100 according to the above embodiment. The current collecting plate 100 connects the main plate body 10 and the connector 20 through the interconnector 30, so that the main plate body 10 is electrically connected to the connector 20. The main plate body 10 is electrically connected to the battery cell, the connector 20 is electrically connected to the shell or the pole, and the battery cell and the shell or the pole are electrically connected through the current collecting plate 100, that is, the current between the battery cell and the shell or the pole passes through the interconnector 30. The interconnector 30 is provided with the heat melting portion 31. When the current passing through the interconnector 30 increases or the heat transferred to the interconnector 30 from the battery cell increases, the temperature of the heat melting portion 31 gradually increases until the temperature of the heat melting portion 31 is greater than the thermal failure temperature, so that the interconnector 30 is disconnected at the heat melting portion 31, thereby disconnecting the electrical connection between the main plate body 10 and the connector 20, and achieving the disconnection of the current between the battery cell and the shell or the pole. This avoids the further increase of the temperature of the electrical connection path between the battery cell and the shell or the pole, reduces or avoids the safety risks such as expansion, combustion or explosion of the battery cell caused by overheating of the battery cell, and improves the use safety of the battery.

[0069] The power consuming device according to the embodiment of the present application comprises the battery according to the above embodiment.

[0070] The power consuming device according to the present application uses the battery according to the above embodiment, which can reduce or avoid the safety risks such as expansion, combustion or explosion of the battery cell caused by overheating of the battery cell, and improve the use safety of the battery.

[0071] Other configurations and operations of the current collector plate 100, the battery, and the power consuming device according to the embodiments of the present application are known to those skilled in the art, and thus will not be described in detail herein.

[0072] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0073] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A collector disk, wherein, include: The main disk body has a first surface and a second surface on two opposite sides along the thickness direction, and the first surface of the main disk body is used to connect the battery cell. A connector is disposed near the second surface of the main body, and the connector is used to connect the battery casing or terminals; At least one interconnecting element is connected between the main disk body and the connector, the interconnecting element includes a heat-fused portion having a thermal failure temperature, and the interconnecting element disconnects at the heat-fused portion when the temperature of the heat-fused portion is greater than the thermal failure temperature.

2. The collector disk according to claim 1, wherein, The thermal failure temperature is greater than or equal to 150°C.

3. The collector disk according to any one of claims 1-2, wherein, The number of interconnecting components is a plurality of spaced-apart components, and the minimum spacing between two adjacent interconnecting components is less than or equal to 10 mm.

4. The manifold according to any one of claims 1-3, wherein, The volume of the interconnect component accounts for 0.04%-2% of the volume of the manifold.

5. The manifold according to any one of claims 1-4, wherein, The width of the interconnect is 1mm-15mm.

6. The manifold according to any one of claims 1-5, wherein, The interconnecting component includes a bent section, the main disk body includes a bent portion, and the bent section is connected between the bent portion and the hot-melt portion; Notches are provided on both sides of the bend on the edge of the main body.

7. The collector disk according to any one of claims 1-6, wherein, The main plate has a through positioning hole at its center for coaxial mounting with the battery cell.

8. The manifold according to any one of claims 1-7, wherein, The connector is provided with at least one first through hole, and the main body is provided with at least one second through hole.

9. The collector disk according to claim 8, wherein, The ratio of the diameter of the first through hole to the diameter of the second through hole is 1:(0.2-5).

10. The collector disk according to any one of claims 8 or 9, wherein, The number of the second through holes is multiple, and the multiple second through holes are arranged at intervals along the circumference of the main disk.

11. The manifold according to any one of claims 8-10, wherein, The main plate has multiple ribs formed on the first surface, and at least two of the ribs are connected on one side facing the center of the main plate to form a recessed platform, and the second through hole is located in the recessed platform.

12. The collector disk according to claim 11, wherein, The sinking platforms are multiple and arranged radially, and each sinking platform is provided with the second through hole.

13. The collector disk according to any one of claims 1-12, wherein, The main plate has multiple raised ribs formed on the first surface, and the raised ribs form a welding area for welding the battery cell.

14. The collector disk according to any one of claims 11-13, wherein, The main disc body has a groove formed on the second surface corresponding to the rib.

15. The collector disk according to any one of claims 1-14, wherein, The collector plate is a stamped part, and the main plate body, the connecting part and the interconnecting part are integrally formed parts.

16. A battery, wherein, include: A housing, wherein a receiving cavity is provided within the housing; The battery cell is disposed within the receiving cavity; The current collector as described in any one of claims 1-15, wherein the main plate body is connected to the battery cell, and the connector is connected to the housing.

17. An electrical appliance, wherein, Includes the battery as described in claim 16.

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