Battery and electronic equipment

Abstract

The invention provides a battery and electronic equipment, and relates to the technical field of terminal equipment. The battery comprises a first battery cell and a second battery cell which are arranged in a mutually overturning manner, wherein the first battery cell and the second battery cell respectively comprise a body and a tab extending out of one end of the body along a first direction; the tab of the first battery cell and the tab of the second battery cell are located at the same position in a third direction, the third direction is the thickness direction of the battery, and the first direction is perpendicular to the third direction.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal technology, and in particular to a battery and an electronic device. Background Art

[0002] At present, lithium-ion batteries are widely used in consumer electronic products such as tablet computers. As users' demand for the battery life of the whole machine increases, the battery capacity is also increasing. However, due to the influence of single battery size, whole machine transportation cost and other conditions, the capacity of a single battery cell is limited. In order to increase the battery capacity, multiple batteries are usually connected in series or in parallel to meet the battery capacity or voltage requirements.

[0003] Existing lithium-ion batteries are generally welded to the protection plate through the tabs, and the welding quality has a great impact on the final product performance. When multiple cells are connected in series or in parallel, it is easy to have the problem that the tabs cannot be accurately positioned on the pads. Summary of the invention

[0004] In view of this, the present disclosure provides a battery and an electronic device.

[0005] According to a first aspect of the present disclosure, a battery is provided, comprising: a first battery cell and a second battery cell which are arranged flipped over each other, the first battery cell and the second battery cell respectively comprising a body and a pole ear extending out of one end of the body along a first direction; the pole ear of the first battery cell and the pole ear of the second battery cell are at the same position in a third direction, wherein the third direction is a thickness direction of the battery, and the first direction is perpendicular to the third direction.

[0006] According to an embodiment of the present disclosure, the electrode tabs include a positive electrode tab and a negative electrode tab arranged at intervals along a second direction, wherein the second direction is perpendicular to the first direction and the third direction, respectively; the positive electrode tab of any one of the first battery cell and the second battery cell is close to the other battery cell, and the negative electrode tab of any one of the battery cell is far away from the other battery cell.

[0007] According to an embodiment of the present disclosure, for any one of the first battery cell and the second battery cell, a step structure is opened at one end of the body, and the step structure includes a first step surface and a second step surface perpendicular to each other; the pole lug of the first battery cell and the pole lug of the second battery cell extend from the corresponding second step surface respectively.

[0008] According to an embodiment of the present disclosure, the pole lug of the first battery cell extends from the second step surface along the first direction; the pole lug of the second battery cell includes a bent section and an extended section that are connected to each other, wherein the bent section is bent from the second step surface of the second battery cell, and the extended section extends from one end of the bent section away from the second step surface along the first direction, and the pole lug of the second battery cell extends from the extended section.

[0009] According to an embodiment of the present disclosure, the battery further includes: a sealant applied to a portion of the surface of the tab extending out of the body.

[0010] According to an embodiment of the present disclosure, the battery also includes: a protective circuit board, located at one end of the first battery cell or the second battery cell close to the pole ear; the protective circuit board is provided with a plurality of connecting plates arranged in sequence along the second direction, the number of which is equal to the total number of pole ears of the first battery cell and the second battery cell, and each connecting plate is electrically connected to the pole ear corresponding to its position.

[0011] According to an embodiment of the present disclosure, a plurality of connection sheets are attached to the same board surface of the protection circuit board.

[0012] According to an embodiment of the present disclosure, a positive electrode connector and a negative electrode connector are provided on the protection circuit board; wherein each positive electrode ear is electrically connected to the positive electrode connector via a connecting piece at a corresponding position and a first wire, and each negative electrode ear is electrically connected to the negative electrode connector via a connecting piece at a corresponding position and a second wire.

[0013] According to an embodiment of the present disclosure, the protection circuit board includes a first circuit board and a second circuit board that are electrically connected, wherein: the first circuit board extends along the second direction and electrically connects the tabs of the first battery cell and the second battery cell, and the second circuit board can be bent relative to the first circuit board; a connection port is provided at one end of the second circuit board away from the first circuit board for protecting the electrical connection between the circuit board and an external circuit.

[0014] A second aspect of the present disclosure provides an electronic device, comprising: a device body; and the above-mentioned battery, wherein the battery is installed in the device body.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0017] Figure 1A and Figure 1B Schematically showing a two-dimensional and three-dimensional structure diagram of a battery according to an embodiment of the present disclosure;

[0018] Figure 2 The structure diagram of the tab and the step structure according to the embodiment of the present disclosure is schematically shown;

[0019] Figure 3A A schematic diagram showing the structure of the second step surfaces of two battery cells according to an embodiment of the present disclosure;

[0020] Figure 3B The structure diagram of the electrode ear of the second battery cell according to the embodiment of the present disclosure is schematically shown;

[0021] Figure 4 The structure of the protection circuit board according to the embodiment of the present disclosure is schematically shown;

[0022] Figure 5 The main current loop diagram of the protection circuit board according to the embodiment of the present disclosure is schematically shown;

[0023] Figure 6 A comparison diagram schematically shows the main current loops of the protection circuit board according to the embodiment of the present disclosure and the traditional protection circuit board;

[0024] Figure 7 The structure diagram of the first circuit board and the second circuit board according to the embodiment of the present disclosure is schematically shown;

[0025] Figure 8 The structural block diagram of an electronic device according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0026] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0027] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0028] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0029] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0030] In the related art, in order to increase the battery capacity of an electronic device, two battery cells are usually arranged in parallel. The tabs of the two battery cells arranged in this way may not be in the same plane, resulting in the problem that the tabs cannot be accurately positioned on the pads.

[0031] In addition, when two cells are connected in parallel or in series to form a battery pack, the two cells are usually arranged side by side along the width of the cells, so that the positive and negative tabs of the two cells are arranged alternately. Since the two cells have the same specifications, the position and size of the tabs cannot be adjusted. When the tabs are welded to the protection plate, the distance between the two cell tabs on the protection plate is proportional to the battery width, and the loop distance between the tabs cannot be minimized.

[0032] As consumer electronic products become thinner and lighter, batteries are becoming thinner and wider, and the distance between tabs is also increasing. This causes the circuit loop of the protection board to be lengthened, and the impedance to increase accordingly. The cost of the protection board has risen significantly, causing adverse effects on the battery temperature rise, the battery's fast charging design, the battery's service life, and even the overall structural design.

[0033] In view of this, the present disclosure provides a battery and an electronic device to at least partially solve the above problems.

[0034] The battery according to the embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0035] Figure 1A and Figure 1B The two-dimensional and three-dimensional structures of a battery according to an embodiment of the present disclosure are schematically shown.

[0036] like Figure 1A and Figure 1B As shown, an embodiment of the present disclosure provides a battery 100, comprising: a first battery cell 110 and a second battery cell 120 which are arranged flipped over each other, the first battery cell 110 and the second battery cell 120 respectively comprising a body and a pole ear extending out of one end of the body along a first direction; the pole ear of the first battery cell 110 and the pole ear of the second battery cell 120 are at the same position in a third direction, wherein the third direction is the thickness direction of the battery, and the first direction is perpendicular to the third direction.

[0037] For ease of description and understanding, in the embodiment of the present disclosure, the length direction of the battery is defined as the first direction, that is, the Y direction; the width direction of the battery is defined as the second direction, that is, the X direction; and the thickness direction of the battery is defined as the third direction, that is, the Z direction.

[0038] The battery cell of the embodiment of the present disclosure is the storage part of the battery, which is used to store electrical energy. For example, the first battery cell 110 and the second battery cell 120 are lithium batteries, and accordingly, the battery 100 can be a lithium battery. The structural shape and structural size of the body of the first battery cell 110 and the second battery cell 120 can be the same to facilitate unified production and assembly and improve the production efficiency of the battery cells.

[0039] The “flip” in the disclosed embodiment may be a 180° flip, for example, the first battery cell is facing up in the third direction, and the second battery cell is facing up in the third direction, so that the two battery cells are flipped relative to each other along one side of the length direction of the battery cells.

[0040] The first battery cell 110 includes a first body 111 and a tab extending from one end of the first body 111 along a first direction, and the second battery cell 120 includes a second body 121 and a tab extending from one end of the second body 121 along the first direction.

[0041] It can be understood that the tabs are metal conductors that lead the positive and negative electrodes out of the battery cell. The tabs of the first battery cell 110 and the tabs of the second battery cell 120 are in the same position in the third direction, that is, the tabs of the two battery cells are at the same height or in the same plane.

[0042] Through the embodiments of the present disclosure, the two battery cells are flipped over each other, and the pole tabs of the two battery cells are in the same plane, so that the pole tabs of the two battery cells can be welded to the same side of the PCB board. This can solve the problem that the pole tabs cannot be accurately positioned on the pads, and it is easy to position the pole tabs, thereby facilitating the welding of the pole tabs.

[0043] In some embodiments, the electrode tabs include a positive electrode tab and a negative electrode tab arranged at intervals along a second direction, wherein the second direction is perpendicular to the first direction and the third direction, respectively; the positive electrode tab of any one of the first battery cell and the second battery cell is close to the other battery cell, and the negative electrode tab of any one of the battery cell is far away from the other battery cell.

[0044] For example, the positive electrode tab may be made of aluminum, and the negative electrode tab may be made of nickel or copper-plated nickel.

[0045] For example, the tabs of the first battery cell 110 include a positive tab B1+ and a negative tab B1- spaced apart along the second direction. The tabs of the second battery cell 120 include a positive tab B2+ and a negative tab B2- spaced apart along the second direction. Since the second battery cell is flipped compared to the first battery cell, the two tabs of each battery cell are spaced apart along the width direction of the battery, and the two positive tabs are close to the middle of the two battery cells, and the two negative tabs are far from the middle of the two battery cells.

[0046] Thus, along the second direction from the first battery cell to the second battery cell, the arrangement order of the four tabs can be the negative tab B1- of the first battery cell, the positive tab B1+ of the first battery cell, the positive tab B2+ of the second battery cell, and the negative tab B2- of the second battery cell.

[0047] Through the embodiments of the present disclosure, the tabs of the battery cell meet the process requirements, and the two positive tabs are close to the middle of the two battery cells, and the two negative tabs are far away from the middle of the two battery cells. Compared with the method of arranging two battery cells in parallel along the width direction of the battery cell in the related art, the tabs of the two battery cells in the embodiments of the present disclosure are on the same plane, and the distance between the positive tabs of the two battery cells is significantly shortened when the two battery cells are connected in parallel, that is, the tab distance between the two battery cells is shortened, thereby reducing the length of the protection board, and also shortening the circuit loop length between the two battery cells, effectively reducing the line impedance on the protection board, and also reducing the cost of the protection board.

[0048] Figure 2 The structure diagram of the electrode tab and the step structure according to the embodiment of the present disclosure is schematically shown.

[0049] like Figure 2 As shown, in some embodiments, for any one of the first battery cell and the second battery cell, a step structure is opened at one end of the body, and the step structure includes a first step surface and a second step surface that are perpendicular to each other; the pole ear of the first battery cell and the pole ear of the second battery cell extend from the corresponding second step surface respectively.

[0050] Taking the first battery cell 110 as an example, a step structure is provided at one end of the first body 111 of the first battery cell 110, and the step structure includes a first step surface 111A and a second step surface 111B perpendicular to each other, and the pole lug of the first battery cell 110 extends from the second step surface 111B. Correspondingly, a step structure is provided at one end of the second body 121 of the second battery cell 120, and the step structure includes a first step surface 121A and a second step surface 121B perpendicular to each other, and the pole lug of the second battery cell 120 extends from the second step surface 121B.

[0051] Furthermore, since the tabs of the two cells extend from the corresponding second step surfaces respectively, in order to ensure that the tabs of the two cells are in the same plane, the heights of the second step surfaces of the two cells can be designed to be the same. For example, under the premise of meeting the process requirements, the depths of the punching holes at the tabs of the first cell and the second cell can be controlled to be the same, so that the height of the tabs is exactly on the central plane in the thickness direction of the cell, that is, the heights of the second step surfaces of the two cells are the same.

[0052] Figure 3A The structure of the second step surface of two battery cells according to an embodiment of the present disclosure is schematically shown.

[0053] like Figure 3AAs shown, in actual applications, due to the limitations of the battery cell manufacturing process, the depths of the punching holes at the edge sealing of the pole ears of the first battery cell and the second battery cell will be inconsistent, the height of the pole ears is not on the central plane in the thickness direction of the battery cell, and there is a height difference D between the second step surface 111B of the first battery cell 110 and the second step surface 121B of the second battery cell 120 along the third direction, so that the second step surfaces of the two battery cells are of different heights.

[0054] In this case, the tab of any one of the two battery cells can be bent so that the tab heights of the two battery cells are the same. For example, the tab of the second battery cell can be bent to adjust the tab height of the second battery cell.

[0055] Figure 3B The structure of the tab of the second battery cell according to an embodiment of the present disclosure is schematically shown.

[0056] like Figure 3B As shown, in some embodiments, the pole lug of the first battery cell 110 extends from the second step surface 111B along the first direction; the pole lug of the second battery cell 120 includes a bent section L1 and an extended section L2 that are connected to each other, wherein the bent section L1 is bent from the second step surface 121B of the second battery cell 120, and the extended section L2 extends from one end of the bent section L1 away from the second step surface 121B along the first direction, and the pole lug of the second battery cell 120 extends from the extended section L2.

[0057] It should be noted that, in other embodiments, the tabs of the first battery cell may be bent so that the tabs of the two battery cells have the same height. The bending method of the tabs of the first battery cell is the same as the bending method of the tabs of the second battery cell in this embodiment, which will not be repeated here.

[0058] Through the embodiments of the present disclosure, the tabs of the two cells can be ensured to be in the same plane, so that the tabs of the two cells can be welded to the same side of the protection plate, and the problem that the tabs cannot be accurately positioned on the pads can be solved, so that the tabs can be positioned easily, thereby facilitating the welding of the tabs. In addition, since the protection plate does not need to be bent together with the tabs, the difficulty of bending the tabs is reduced, and the battery body and the top seal structure will not be damaged.

[0059] Please continue reading Figure 1A In some embodiments, the battery further comprises: a sealant ME, which is applied to a portion of the surface of the tab extending out of the body. The sealant is arranged at one end of the body together with the tab to insulate and seal the tab.

[0060] Figure 4 The structure of a protection circuit board according to an embodiment of the present disclosure is schematically shown.

[0061] like Figure 4As shown, in some embodiments, the battery further includes: a protection circuit board BH, located at one end of the first battery cell or the second battery cell close to the pole ear; the protection circuit board BH is provided with a plurality of connecting plates arranged in sequence along the second direction, the number of which is equal to the total number of pole ears of the first battery cell and the second battery cell, and each connecting plate is electrically connected to the pole ear corresponding to its position.

[0062] The protection circuit board BH has a protection function, which can effectively monitor the charging and discharging status of the battery and shut down the charging and discharging circuits under certain conditions to prevent damage to the battery.

[0063] In some embodiments, the connecting sheet may be a nickel sheet. The protection circuit board may also be provided with a variety of electronic components such as MOS switches, precision resistors, capacitors and auxiliary devices, memories, connectors, etc.

[0064] For example, along the second direction X from the first battery cell 110 to the second battery cell 120, the protection circuit board BH is provided with a first connection sheet N1, a second connection sheet N2, a third connection sheet N3, and a fourth connection sheet N4 in sequence. Among them, the first connection sheet N1 corresponds to the position of the negative pole ear B1- of the first battery cell, the second connection sheet N2 corresponds to the position of the positive pole ear B1+ of the first battery cell, the third connection sheet N3 corresponds to the position of the positive pole ear B2+ of the second battery cell, and the fourth connection sheet N4 corresponds to the position of the negative pole ear B2- of the second battery cell. In addition, the first connection sheet N1 is electrically connected to the negative pole ear B1- of the first battery cell, the second connection sheet N2 is electrically connected to the positive pole ear B1+ of the first battery cell, the third connection sheet N3 is electrically connected to the positive pole ear B2+ of the second battery cell, and the fourth connection sheet N4 is electrically connected to the negative pole ear B2- of the second battery cell.

[0065] Through the embodiments of the present disclosure, the protection circuit board is located on the same side of the two battery cells in the length direction, and the multiple connecting plates on the protection circuit board are arranged corresponding to the positions of the pole ears of the two battery cells, and the connecting plates are electrically connected to the pole ears corresponding to their positions, so as to realize the positioning of multiple pole ears on the same protection circuit board and facilitate the welding of the pole ears.

[0066] In some embodiments, multiple connecting sheets are attached to the same board surface of the protection circuit board. Thus, the tabs of two battery cells can be welded to the same side of the protection circuit board, which can solve the problem that the tabs cannot be accurately positioned on the pads, facilitate the positioning of the tabs, and thus facilitate the welding of the tabs.

[0067] It is understandable that if the multiple connecting pieces are not on the same surface of the protection circuit board, the tabs of the two battery cells need to be welded to both sides of the protection circuit board, and the double-sided layout technology of the protection circuit board needs to be used. This not only increases the cost and increases the difficulty of welding, but may also cause the battery to be too thick, affecting the user experience of electronic products.

[0068] In some embodiments, a positive electrode connector and a negative electrode connector are provided on the protection circuit board; wherein each positive electrode ear is electrically connected to the positive electrode connector through a connecting piece at a corresponding position and a first wire, and each negative electrode ear is electrically connected to the negative electrode connector through a connecting piece at a corresponding position and a second wire.

[0069] Figure 5 The main current loop diagram of the protection circuit board according to the embodiment of the present disclosure is schematically shown.

[0070] like Figure 5 As shown, for example, a positive electrode connector P+ and a negative electrode connector P- are provided on the protection circuit board BH, the positive electrode ear B1+ of the first battery cell is electrically connected through the second connecting piece N2 at the corresponding position, the positive electrode ear B2+ of the second battery cell is electrically connected through the third connecting piece N3 at the corresponding position, and the second connecting piece N2 and the third connecting piece N3 are electrically connected to the positive electrode connector P+ through the first wire. Correspondingly, the negative electrode ear B1- of the first battery cell is electrically connected through the first connecting piece N1 at the corresponding position, the negative electrode ear B2- of the second battery cell is electrically connected through the fourth connecting piece N4 at the corresponding position, and the first connecting piece N1 and the fourth connecting piece N4 are electrically connected to the negative electrode connector P- through the second wire.

[0071] The embodiment of the present disclosure also conducts a test comparison between a conventional protection circuit board and the protection circuit board of the embodiment of the present disclosure. Figure 6 A comparison diagram of main current loops of a protection circuit board according to an embodiment of the present disclosure and a traditional protection circuit board is schematically shown.

[0072] Figure 6 The above figure shows the appearance and layout of a traditional protection circuit board designed by arranging two battery cells side by side along the width of the battery cell. Figure 6 The following figure is the appearance and layout diagram of the protection circuit board according to the embodiment of the present disclosure, wherein the cyan line represents the first wire from the positive electrode ears B1+, B2+ to the positive electrode connector P+ of the protection circuit board, and the red line represents the second wire from the negative electrode ears B1-, B2- to the negative electrode connector P- of the protection circuit board. It can be seen that compared with the traditional protection circuit board, the embodiment of the present disclosure significantly shortens the length of the protection circuit board by about 17%, and also greatly shortens the length of the entire circuit loop, which can effectively reduce the impedance and also reduce the cost of the protection circuit board.

[0073] Figure 7 The structure diagram of the first circuit board and the second circuit board according to the embodiment of the present disclosure is schematically shown.

[0074] like Figure 7As shown, in some embodiments, the protection circuit board BH includes a first circuit board BH1 and a second circuit board BH2 that are electrically connected, wherein: the first circuit board BH1 extends along the second direction X and electrically connects the pole ears of the first battery cell and the second battery cell, and the second circuit board BH2 can be bent relative to the first circuit board; a connection port c is provided at one end of the second circuit board BH2 away from the first circuit board BH1 for protecting the electrical connection between the circuit board and the external circuit.

[0075] For example, the first circuit board is a printed circuit board (PCB), which is a hard circuit board; the second circuit board is a flexible printed circuit (FPC), which has a bendable property. The second circuit board is located between the first circuit board and the external circuit of the electronic device, so that the first circuit board and the external circuit of the electronic device can transmit electrical signals.

[0076] For example, the tabs of the two battery cells can be electrically connected to the protection circuit board respectively, and can be electrically connected to the external circuit of the electronic device (such as the main circuit board and the auxiliary circuit board) through the connection port c of the protection circuit board, thereby realizing indirect connection between the tabs of the two battery cells and the external circuit of the electronic device.

[0077] For example, when the battery of an electronic device is discharged, the electrical signal output by the cell can be output to the main circuit board through the protection circuit board, thereby supplying power to the main circuit board. In this process, the protection circuit board can prevent the voltage input or output of the cell from being too high, and can also prevent the current input or output of the cell from being too high.

[0078] From the above description, it can be seen that the battery provided by the embodiment of the present disclosure is low-cost, easy to use, and easy to expand production. It can not only reduce the temperature rise of the whole machine, improve the battery charging speed and extend the battery life, but also shorten the length of the protection circuit board where the battery is located, and can free up more space for the design of the whole machine or reduce the weight of the whole machine.

[0079] Based on the above battery, the present disclosure also provides an electronic device, which will be described below through Figure 8 The electronic device according to the embodiment of the present disclosure is described in detail.

[0080] Figure 8 The structural block diagram of an electronic device according to an embodiment of the present disclosure is schematically shown.

[0081] like Figure 8 As shown, the electronic device 800 of this embodiment includes: a device body 810 and a battery 820 , wherein the battery 820 is a battery of any of the aforementioned embodiments, and the battery 820 is installed in the device body 810 .

[0082] By way of example, the electronic device 800 may include a mobile phone, a laptop computer, a tablet computer, a wearable device, a battery car, an electric car, a ship, a spacecraft, an electric toy, an electric tool, etc. The battery 820 provides power for the electronic device 800 .

[0083] Through the embodiments of the present disclosure, the aforementioned provided battery is applied to electronic devices, so that the battery capacity of the electronic devices can be improved, which is low-cost, convenient to use, and easy to expand production. It can not only reduce the temperature rise of the whole machine, improve the battery charging speed and extend the battery life, but also shorten the length of the protection circuit board where the battery is located, so as to free up more space for the design of the whole machine or reduce the weight of the whole machine.

[0084] It should be noted that the description of the battery in the electronic device of the embodiment of the present disclosure is similar to the description of the battery in the previous embodiment, and has similar beneficial effects as the same structural embodiment, so it is not repeated here. For the technical details of the battery in the electronic device of the embodiment of the present disclosure that are not disclosed, please refer to the description of the battery in the previous embodiment for understanding.

[0085] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0086] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A battery comprising: A first battery cell and a second battery cell are arranged flipped with each other, wherein the first battery cell and the second battery cell respectively include a body and a tab extending from one end of the body along a first direction; The tab of the first battery cell and the tab of the second battery cell are at the same position in a third direction, wherein the third direction is a thickness direction of the battery, and the first direction is perpendicular to the third direction.

2. The battery according to claim 1, wherein the tabs include a positive tab and a negative tab spaced apart along the second direction, wherein: The second direction is perpendicular to the first direction and the third direction respectively; The positive electrode ear of any one of the first battery cell and the second battery cell is close to the other battery cell, and the negative electrode ear of any one of the battery cells is far away from the other battery cell.

3. The battery according to claim 1, for any one of the first battery cell and the second battery cell, a step structure is provided at one end of the body, and the step structure includes a first step surface and a second step surface that are perpendicular to each other; The tabs of the first battery cell and the tabs of the second battery cell extend from the corresponding second step surfaces respectively.

4. The battery according to claim 3, wherein the tab of the first battery cell extends from the second step surface along a first direction; The pole ear of the second battery cell includes a bent section and a protruding section connected to each other, wherein: The bent section is bent from the second step surface of the second battery cell, the extended section extends from one end of the bent section away from the second step surface along the first direction, and the pole ear of the second battery cell extends from the extended section.

5. The battery according to any one of claims 1, further comprising: The sealant is coated on a portion of the surface of the tab extending out of the body.

6. The battery according to claim 2, further comprising: A protection circuit board is located at one end of the first battery cell or the second battery cell close to the electrode lug; The protection circuit board is provided with a plurality of connecting pieces arranged in sequence along the second direction, the number of which is equal to the total number of the tabs of the first battery cell and the second battery cell, and each of the connecting pieces is electrically connected to the tab corresponding to its position. 7 . The battery according to claim 6 , wherein the plurality of connecting pieces are attached to the same surface of the protection circuit board.

8. The battery according to claim 6, wherein the protection circuit board is provided with a positive electrode connector and a negative electrode connector; in, Each of the positive electrode tabs is electrically connected to the positive electrode connector via the connecting piece and the first wire at the corresponding position, and each of the negative electrode tabs is electrically connected to the negative electrode connector via the connecting piece and the second wire at the corresponding position.

9. The battery according to claim 6, wherein the protection circuit board comprises a first circuit board and a second circuit board that are electrically connected, wherein: The first circuit board extends along the second direction and electrically connects the tabs of the first battery cell and the second battery cell, and the second circuit board can be bent relative to the first circuit board; A connection port is provided at one end of the second circuit board away from the first circuit board for electrically connecting the protection circuit board to an external circuit.

10. An electronic device, comprising: Equipment body; as well as The battery of any one of claims 1 to 9, wherein the battery is installed in the device body.

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