Battery and electronic equipment
By adjusting the design of the cell tab position, the length of the protection board is shortened. Combined with the connection of flexible and rigid circuit boards, the problems of deformation and breakage of the protection board are solved, and the power supply performance and stability of the battery are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-10
AI Technical Summary
The excessive length of the protection board results in poor battery power supply performance and makes it prone to deformation or breakage.
The tabs of the first battery cell are positioned near the first end face, and the tabs of the second battery cell are positioned near the second end face, which shortens the length of the protection board. The combination of flexible and rigid circuit boards prevents the protection board from deforming or breaking.
It effectively reduces the battery's internal resistance, ensures the battery's power supply performance, and improves the battery's stability and function.
Smart Images
Figure CN223986679U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of secondary battery technology, specifically relating to a battery and electronic device. Background Technology
[0002] In the field of secondary battery technology, batteries are often used to power electrical devices. The battery cell is an important component of the battery and its most basic building block.
[0003] Many fast-charging batteries employ a dual-cell series design. These cells require a protection board to protect them from over-discharge, overcharge, overcurrent, and short circuits. In related technologies, the battery includes a first cell, a second cell, and a protection board. The tabs of the first and second cells are connected by the protection board. However, this results in a longer protection board, leading to higher internal resistance in the battery. The protection board is also prone to deformation or even breakage, affecting the battery's power supply performance. Utility Model Content
[0004] The purpose of this application is to provide a battery and electronic device that can solve the problem of poor battery power supply performance caused by the large length of the protection board in related technologies.
[0005] In a first aspect, embodiments of this application provide a battery, including a first battery cell, a second battery cell, and a protection board. The first battery cell and the second battery cell are disposed at a distance from each other. The first battery cell has a first end face facing the second battery cell, and the second battery cell has a second end face facing the first battery cell.
[0006] The first battery cell has a first tab, and the second battery cell has a second tab. The first tab is disposed near the first end face, and the second tab is disposed near the second end face. The protection plate is electrically connected to the first tab and the second tab respectively.
[0007] Secondly, embodiments of this application also provide an electronic device, including the battery described above.
[0008] In this embodiment, the first tab of the first battery cell is disposed near the first end face, and the second tab of the second battery cell is disposed near the second end face. That is, the first tab is disposed near the second battery cell, and the second tab is disposed near the first battery cell. The distance between the first tab and the second tab is relatively short, so the length of the protection board used to electrically connect the first tab and the second tab is shortened, the protection board is not easily deformed, thereby avoiding the protection board from breaking, and the internal resistance of the battery is effectively reduced, which is beneficial to ensuring the power supply performance of the battery. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of a battery disclosed in an embodiment of this application;
[0010] Figure 2 This is a schematic diagram of the battery structure disclosed in another embodiment of this application;
[0011] Figure 3 This is a schematic diagram of the battery structure disclosed in another embodiment of this application;
[0012] Figure 4 This is a schematic diagram of the structure of the first battery cell disclosed in the embodiments of this application;
[0013] Figure 5 This is a schematic diagram of the structure of the second battery cell disclosed in an embodiment of this application.
[0014] Explanation of reference numerals in the attached figures:
[0015] 10-battery,
[0016] 100 - First cell, 100a - First end face, 100b - Third end face, 110 - First tab, 111 - First positive tab, 112 - First negative tab, a - First slot
[0017] 200 - Second cell, 200a - Second end face, 200b - Fourth end face, 210 - Second tab, 211 - Second positive tab, 212 - Second negative tab, b - Second slot
[0018] 300-protection board
[0019] 310 - Flexible circuit board, 311 - First electrical connection part, 311a - First surface, 312 - Transition connection part, 313 - Second electrical connection part
[0020] 320 - Rigid circuit board, 321 - Second surface
[0021] 400-Connector. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0023] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0024] The battery and electronic device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0025] Please refer to Figures 1-5 This application discloses a battery 10 for supplying power to various electrical devices. The battery 10 can be, but is not limited to, a lithium battery. The battery 10 includes a first cell 100, a second cell 200, and a protection board 300. The first cell 100 and the second cell 200 are used to store electrical energy. The first cell 100 and the second cell 200 can be polymer cells, i.e., pouch cells, or aluminum-cased cells; no specific limitation is made here. The protection board 300 is used to electrically connect the first cell 100 and the second cell 200, connecting them in series to increase the energy capacity of the battery 10.
[0026] refer to Figures 1-3 As shown, a first battery cell 100 and a second battery cell 200 are spaced apart. The first battery cell 100 has a first end face 100a facing the second battery cell 200, and the second battery cell 200 has a second end face 200a facing the first battery cell 100. Optionally, the first battery cell 100 and the second battery cell 200 are spaced apart along a first direction, which can be the length direction of the first battery cell 100 and the second battery cell 200. The shapes of the first battery cell 100 and the second battery cell 200 can be cylindrical structures, in which case the first end face 100a and the second end face 200a are both circular surfaces. Of course, the first direction can also be the width direction of the first battery cell 100 and the second battery cell 200 or other directions. The first battery cell 100 and the second battery cell 200 can also adopt other structures besides cylindrical structures. The shape and size of the first battery cell 100 can be the same as or different from the shape and size of the second battery cell 200.
[0027] The first battery cell 100 is provided with a first tab 110, which serves as a contact point for the first battery cell 100 to electrically connect to the protection board 300. The first tab 110 is located adjacent to the first end face 100a, meaning that the first tab 110 is relatively close to the first end face 100a. Optionally, the first battery cell 100 is provided with a third end face 100b facing away from the second battery cell 200. The first end face 100a and the third end face 100b are opposite to each other. Along the first direction, the distance between the first tab 110 and the first end face 100a is less than the distance between the first tab 110 and the third end face 100b.
[0028] The second battery cell 200 is provided with a second tab 210, which serves as a contact point for the electrical connection protection board 300. The second tab 210 is located adjacent to the second end face 200a, meaning that the second tab 210 is relatively close to the second end face 200a. Optionally, the second battery cell 200 is provided with a fourth end face 200b facing away from the first battery cell 100. The second end face 200a and the fourth end face 200b are opposite to each other. Along the first direction, the distance between the second tab 210 and the second end face 200a is less than the distance between the second tab 210 and the fourth end face 200b.
[0029] The protection board 300 is electrically connected to the first tab 110 and the second tab 210. Optionally, the first end of the protection board 300 and the first tab 110, and the second end of the protection board 300 and the second tab 210, can be connected by means of soldering or other methods to achieve electrical connection. The protection board 300 can be, but is not limited to, a circuit board, as long as it can electrically connect the first battery cell 100 and the second battery cell 200. It should be noted that the direction in which the first tab 110 and the second tab 210 are spaced apart is the length direction of the protection board 300.
[0030] In this embodiment, the first tab 110 of the first cell 100 is disposed near the first end face 100a, and the second tab 210 of the second cell 200 is disposed near the second end face 200a. That is, the first tab 110 is disposed near the second cell 200, and the second tab 210 is disposed near the first cell 100. The distance between the first tab 110 and the second tab 210 is relatively small, so the length of the protection plate 300 used to electrically connect the first tab 110 and the second tab 210 is shortened, the protection plate 300 is not easily deformed, thereby avoiding the protection plate 300 from breaking, and the internal resistance of the battery 10 is effectively reduced, which is beneficial to ensuring the power supply performance of the battery 10.
[0031] In one optional embodiment, the first tab 110 and the second tab 210 are staggered along the direction in which the first cell 100 and the second cell 200 are spaced apart, that is, along the first direction. In other words, the first tab 110 and the second tab 210 are not spaced apart along the first direction.
[0032] In another embodiment, reference Figures 1-3 As shown, the first electrode 110 and the second electrode 210 are positioned opposite each other along the direction in which the first battery cell 100 and the second battery cell 200 are spaced apart, that is, along the first direction. In other words, the first electrode 110 and the second electrode 210 are spaced apart along the first direction.
[0033] In this embodiment, the direction in which the first tab 110 and the second tab 210 are spaced apart is the same as the direction in which the first cell 100 and the second cell 200 are spaced apart. In this way, while ensuring that the first tab 110 is adjacent to the first end face 100a and the second tab 210 is adjacent to the second end face 200a, it is beneficial to further reduce the distance between the first tab 110 and the second tab 210, further shorten the length of the protection board 300, and better avoid deformation and breakage of the protection board 300. This is also beneficial to further reduce the internal resistance of the battery 10 and ensure the power supply performance of the battery 10.
[0034] In one optional embodiment, the first electrode 110 includes a first positive electrode 111 and a first negative electrode 112. The first positive electrode 111 is disposed adjacent to the first end face 100a, that is, the first positive electrode 111 is relatively close to the first end face 100a, and the first negative electrode 112 is relatively far away from the first end face 100a. The second electrode 210 includes a second positive electrode 211 and a second negative electrode 212. The second negative electrode 212 is disposed adjacent to the second end face 200a, that is, the second negative electrode 212 is relatively close to the second end face 200a, and the second positive electrode 211 is relatively far away from the second end face 200a.
[0035] A portion of the protection plate 300 is electrically connected to the first positive tab 111 and the second negative tab 212, respectively, while another portion of the protection plate 300 is electrically connected to the first negative tab 112 and the second positive tab 211, respectively. Thus, the distance between the first positive tab 111 and the second negative tab 212 is small, and the length of a portion of the protection plate 300 is relatively short.
[0036] In another embodiment, reference Figure 4 As shown, both the first positive electrode tab 111 and the first negative electrode tab 112 are disposed adjacent to the first end face 100a, that is, the first positive electrode tab 111 and the first negative electrode tab 112 are relatively close to the first end face 100a; Reference Figure 5 As shown, the second positive electrode tab 211 and the second negative electrode tab 212 are both disposed adjacent to the second end face 200a, that is, the second positive electrode tab 211 and the second negative electrode tab 212 are relatively close to the second end face 200a.
[0037] The protection plate 300 is electrically connected to the first positive tab 111, the first negative tab 112, the second positive tab 211, and the second negative tab 212, respectively. Optionally, the protection plate 300 is fixedly connected to the first positive tab 111, the first negative tab 112, the second positive tab 211, and the second negative tab 212 by welding or other methods, thereby achieving electrical connection.
[0038] Optionally, the distance between the first positive electrode tab 111 and the first end face 100a is less than the distance between the first positive electrode tab 111 and the third end face 100b, and the distance between the first negative electrode tab 112 and the first end face 100a is less than the distance between the first negative electrode tab 112 and the third end face 100b; the distance between the second positive electrode tab 211 and the second end face 200a is less than the distance between the second positive electrode tab 211 and the fourth end face 200b, and the distance between the second negative electrode tab 212 and the second end face 200a is less than the distance between the second negative electrode tab 212 and the fourth end face 200b.
[0039] Further optionally, the first positive electrode tab 111 is located on the side of the first negative electrode tab 112 facing away from the first end face 100a, and the second positive electrode tab 211 is located on the side of the second negative electrode tab 212 facing the second end face 200a.
[0040] In this embodiment, the first positive tab 111 and the first negative tab 112 are both relatively close to the first end face 100a, and the second positive tab 211 and the second negative tab 212 are both relatively close to the second end face 200a. Therefore, in the first direction, the length of the arrangement of the first positive tab 111, the first negative tab 112, the second positive tab 211, and the second negative tab 212 is relatively small. When the protection board 300 is electrically connected to these four, the overall length of the protection board 300 is reduced, which avoids deformation and breakage of the protection board 300 and helps to further reduce the internal resistance of the battery 10 and ensure the power supply performance of the battery 10.
[0041] In an optional embodiment, refer to Figure 2 As shown, the first battery cell 100 has a first slot a, and the first tab 110 is disposed in the first slot a. Optionally, the first slot a can be a square slot, an arc slot, etc. The shape of the first slot a is not limited in this embodiment. The first slot a can be formed on the first end face 100a, or the first slot a can be formed on the side connecting the first end face 100a and the third end face 100b. The first positive tab 111 and the first negative tab 112 are both disposed in the first slot a.
[0042] In this embodiment, the first cell 100 is provided with a first slot a to avoid the first tab 110, and can be extended to other positions outside the first slot a to form an irregular structure, which is beneficial to increase the volume of the first cell 100 and increase the capacity of the battery 10.
[0043] Of course, in other embodiments, the first cell 100 may not have a slot, and the first tab 110 may be directly disposed on the surface of the first cell 100. The first cell 100 may adopt a regular structure such as a cylindrical structure.
[0044] In an optional embodiment, refer to Figure 2 As shown, the second cell 200 has a second slot b, and the second tab 210 is disposed in the second slot b. Optionally, the second slot b can be a square slot, an arc slot, etc. The shape of the second slot b is not limited in this embodiment. The second slot b can be formed on the second end face 200a, or it can be formed on the side connecting the second end face 200a and the fourth end face 200b. The second positive tab 211 and the second negative tab 212 are both disposed in the second slot b.
[0045] In this embodiment, the second cell 200 is provided with a second slot b to avoid the second tab 210, and can be extended to other positions outside the second slot b to form an irregular structure, which is beneficial to increase the volume of the second cell 200 and increase the capacity of the battery 10.
[0046] Of course, in other embodiments, the second cell 200 may not have a slot, and the second tab 210 may be directly disposed on the surface of the second cell 200. The second cell 200 may adopt a regular structure such as a cylindrical structure.
[0047] In a further embodiment, reference is made to... Figure 2 As shown, the first slot a is formed on the first end face 100a, and the second slot b is formed on the second end face 200a. They are arranged along the direction in which the first battery cell 100 and the second battery cell 200 are spaced apart. That is, along the first direction, the first slot a and the second slot b are opposite to each other and connected. The first part of the protection plate 300 extends into the first slot a, and the second part of the protection plate 300 extends into the second slot b.
[0048] Optionally, the protective plate 300 may include only the first part and the second part, that is, the entire protective plate 300 is located within the groove formed by the first slot a and the second slot b; or, in addition to the first part and the second part, the protective plate 300 may also include other parts, and the other parts of the protective plate 300 are located outside the first slot a and the second slot b, that is, a part of the protective plate 300 is located within the groove formed by the first slot a and the second slot b.
[0049] Optionally, along the first direction, the first slot a does not penetrate the first battery cell 100, the second slot b penetrates the second battery cell 200, the plane where the bottom wall of the first slot a is located is coplanar with the plane where the bottom wall of the second slot b is located, and the plane where the protective plate 300 is located is parallel to the plane where the bottom wall of the first slot a is located.
[0050] In this embodiment, the protection plate 300 extends into the first slot a and the second slot b, which helps to reduce the thickness of the battery 10 packaging space. The first slot a of the first cell 100 avoids the protection plate 300, and the first cell 100 can extend to other positions outside the protection plate 300, which helps to further increase the volume of the first cell 100. Similarly, the second slot b of the second cell 200 avoids the protection plate 300, and the second cell 200 can extend to other positions outside the protection plate 300, which helps to further increase the volume of the second cell 200 and further increase the capacity of the battery 10.
[0051] Of course, in other embodiments, the protective plate 300 may not extend into the first slot a and the second slot b, with only the first tab 110 located in the first slot a and the second tab 210 located in the second slot b.
[0052] In the scheme of this application, reference is made to Figures 1-3 As shown, the protection board 300 includes a flexible circuit board 310 and a rigid circuit board 320. The flexible circuit board 310 is lightweight and thin. The flexible circuit board 310 is electrically connected to the first tab 110 and the second tab 210. Optionally, the flexible circuit board 310 is electrically connected to the first positive tab 111, the first negative tab 112, the second positive tab 211, and the second negative tab 212. The rigid circuit board 320 is a printed circuit board and does not possess flexibility. The rigid circuit board 320 is bonded to the flexible circuit board 310. Optionally, the rigid circuit board 320 can be bonded to the flexible circuit board 310 by means of soldering or other methods.
[0053] In this embodiment, the flexible circuit board 310 is used to facilitate its electrical connection with the first tab 110 and the second tab 210 for current transmission to meet the current carrying requirements. At the same time, the rigid circuit board 320 is used to enable the flexible circuit board 310 to transmit current outward and to reinforce it, preventing the overall deformation of the protection board 300 and improving the strength of the protection board 300.
[0054] Of course, in other embodiments, the protection board 300 may only include the flexible circuit board 310, that is, the protection board 300 does not have a rigid circuit board 320.
[0055] In one alternative embodiment, reference is made to... Figure 1 and Figure 2As shown, the rigid circuit board 320, the first tab 110, and the second tab 210 are all located on the same side of the flexible circuit board 310. Optionally, the first positive tab 111, the first negative tab 112, the second positive tab 211, the second negative tab 212, and the rigid circuit board 320 are all located on the same side of the flexible circuit board 310, and the rigid circuit board 320 is located within the second slot b, with the rigid circuit board 320 and the second tab 210 arranged adjacent to each other.
[0056] In this embodiment, the space occupied by the rigid circuit board 320 in the thickness direction of the battery 10 overlaps with the space occupied by the first tab 110 and the second tab 210, thus avoiding the rigid circuit board 320 occupying additional space in the thickness direction, which is beneficial to reducing the thickness of the battery 10 packaging space.
[0057] In another embodiment, reference Figure 3 As shown, the flexible circuit board 310 includes a first electrical connection portion 311, a transition connection portion 312, and a second electrical connection portion 313 that are bent and connected in sequence. The first electrical connection portion 311 is electrically connected to the first tab 110 and the second tab 210, respectively. The second electrical connection portion 313 is located on the side of the first electrical connection portion 311 facing the first tab 110 and the second tab 210. The rigid circuit board 320 is located on the side of the second electrical connection portion 313 facing away from the first battery cell 100 and the second battery cell 200.
[0058] Optionally, the first electrical connection 311, the transition connection 312, and the second electrical connection 313 can be integrally formed, or the three can be separate structures and connected sequentially by welding or other means; the transition connection 312 is inclined relative to the first electrical connection 311 and the second electrical connection 313, and the plane where the first electrical connection 311 is located is parallel to the plane where the second electrical connection 313 is located.
[0059] In this embodiment, by bending the flexible circuit board 310, the second electrical connection portion 313 is made to make room for the rigid circuit board 320. In the thickness direction of the battery 10, at least part of the space occupied by the rigid circuit board 320 overlaps with the space occupied by the first electrical connection portion 311 and the tab, thus avoiding the rigid circuit board 320 occupying a large space in the thickness direction, which is beneficial to reducing the thickness of the battery 10 packaging space.
[0060] In one optional embodiment, the surface of the first electrical connection portion 311 facing away from the first tab 110 and the second tab 210 is designated as the first surface 311a, and the surface of the rigid circuit board 320 facing away from the second electrical connection portion 313 is designated as the second surface 321. The rigid circuit board 320 protrudes relative to the first surface 311a, meaning the first surface 311a and the second surface 321 are not coplanar. Thus, in the thickness direction of the battery 10, the space occupied by the rigid circuit board 320 overlaps with the space occupied by the first electrical connection portion 311 and the tabs.
[0061] In another embodiment, reference Figure 3 As shown, the first surface 311a and the second surface 321 are coplanar.
[0062] In this embodiment, the space occupied by the rigid circuit board 320 in the thickness direction of the battery 10 completely overlaps with the space occupied by the first electrical connection portion 311 and the tab, avoiding the rigid circuit board 320 occupying additional space in the thickness direction, which is beneficial to further reduce the thickness of the battery 10 packaging space.
[0063] Of course, in other embodiments, the flexible circuit board 310 may be configured without bending, and the rigid circuit board 320 may be located on the side of the flexible circuit board 310 that faces away from the first battery cell 100 and the second battery cell 200.
[0064] In an optional embodiment, refer to Figures 1-3 As shown, the battery 10 also includes a connector 400, which is electrically connected to the protection board 300 to allow the protection board 300 to transmit current externally through the connector 400. Optionally, refer to Figures 1-2 As shown, the rigid circuit board 320, the first tab 110, and the second tab 210 are all located on the same side of the flexible circuit board 310, and the connector 400 is electrically connected to the flexible circuit board 310; or, refer to Figure 3 As shown, the rigid circuit board 320 is located on the side of the flexible circuit board 310 that faces away from the first battery cell 100 and the second battery cell 200, and the connector 400 is electrically connected to the rigid circuit board 320.
[0065] Based on the battery 10 disclosed in this application, this application also discloses an electronic device. The battery 10 device includes the battery 10 in the above embodiments. In addition, the electronic device also includes an electrical component that is electrically connected to the battery 10.
[0066] In this embodiment, the special position of the tabs on the battery cell of the electronic device 10 helps to shorten the length of the protection board 300, making the protection board 300 less prone to deformation and thus preventing the protection board 300 from breaking. The internal resistance of the battery 10 is effectively reduced, which helps to ensure the power supply performance of the battery 10 and also helps to stabilize the function of the electronic device.
[0067] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A battery, characterized by, The application relates to a battery cell, which comprises a first battery cell (100), a second battery cell (200) and a protection plate (300), wherein the first battery cell (100) is arranged apart from the second battery cell (200), the first battery cell (100) is provided with a first end face (100a) facing the second battery cell (200), and the second battery cell (200) is provided with a second end face (200a) facing the first battery cell (100), the first battery cell (100) is provided with a first tab (110), the second battery cell (200) is provided with a second tab (210), the first tab (110) is arranged adjacent to the first end face (100a), the second tab (210) is arranged adjacent to the second end face (200a), and the protection plate (300) is electrically connected with the first tab (110) and the second tab (210) respectively.
2. The battery of claim 1, wherein, The first tab (110) and the second tab (210) are opposite to each other along the direction in which the first battery cell (100) and the second battery cell (200) are arranged apart.
3. The battery of claim 1, wherein, The first tab (110) comprises a first positive tab (111) and a first negative tab (112), the first positive tab (111) and the first negative tab (112) are both arranged adjacent to the first end face (100a), the second tab (210) comprises a second positive tab (211) and a second negative tab (212), the second positive tab (211) and the second negative tab (212) are both arranged adjacent to the second end face (200a), the protection plate (300) is electrically connected with the first positive tab (111), the first negative tab (112), the second positive tab (211) and the second negative tab (212) respectively.
4. The battery of claim 1, wherein, The first battery cell (100) is provided with a first slot (a), and the first tab (110) is arranged in the first slot (a); and / or, the second battery cell (200) is provided with a second slot (b), and the second tab (210) is arranged in the second slot (b).
5. The battery of claim 4, wherein, The first slot (a) is arranged on the first end face (100a), the second slot (b) is arranged on the second end face (200a), and the first slot (a) and the second slot (b) are opposite and connected along the direction in which the first battery cell (100) and the second battery cell (200) are arranged apart, a first part of the protection plate (300) extends into the first slot (a), and a second part of the protection plate (300) extends into the second slot (b).
6. The battery of claim 1, wherein, The protection plate (300) comprises a rigid circuit board (320) and a flexible circuit board (310), the flexible circuit board (310) is electrically connected with the first tab (110) and the second tab (210) respectively, and the rigid circuit board (320) is connected with the flexible circuit board (310) in a pasting mode.
7. The battery of claim 6, wherein, The rigid circuit board (320), the first tab (110) and the second tab (210) are all located on the same side of the flexible circuit board (310).
8. The battery of claim 6, wherein, The flexible circuit board (310) comprises a first electric connection part (311), a transition connection part (312) and a second electric connection part (313) connected in turn, the first electric connection part (311) is electrically connected with the first tab (110) and the second tab (210) respectively, the second electric connection part (313) is located on the side of the first electric connection part (311) facing the first tab (110) and the second tab (210), and the rigid circuit board (320) is located on the side of the second electric connection part (313) facing away from the first electric core (100) and the second electric core (200).
9. The battery of claim 8, wherein, The surface of the first electric connection part (311) facing away from the first tab (110) and the second tab (210) is a first surface (311a), the surface of the rigid circuit board (320) facing away from the second electric connection part (313) is a second surface (321), and the first surface (311a) is coplanar with the second surface (321).
10. An electronic device, comprising: The battery (10) comprises any one of claims 1-9.