Battery and terminal equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a battery and terminal equipment. The battery comprises a plurality of battery cells and a protection plate, tabs are arranged at the heads of the battery cells, the protection plate is connected with the tabs, the protection plate comprises hard plate units, and the hard plate units are correspondingly arranged at the heads of the battery cells; a gap for two adjacent side sealing edges of two adjacent battery cells to penetrate through is formed between at least two adjacent hard board units; the connecting soft plate comprises a connecting part and a bending part which are connected with each other; the hard board unit is connected with the connecting part, and the connecting part is provided with a notch corresponding to the gap; the bending part is located at the notch and extends in the direction away from the notch, and the bending part is bent to the outer side of the side sealing edge. The protective plate provided by the utility model can reduce the occupied space of the head of the battery cell and increase the length of the battery cell, thereby increasing the capacity of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery and a terminal device. Background Art

[0002] Rechargeable batteries are widely used, for example, in mobile phones, tablets, laptops, and wearable smart devices. Battery cells and protection boards are essential components of rechargeable batteries. The protection board is an integrated circuit board that primarily protects the rechargeable battery.

[0003] During the battery production process, the battery cells need to be packaged. After packaging, a top seal is formed at the end of the battery cell where the tab is provided, and side seals are formed on both sides of the width direction of the battery cell. The side seals extend out of the end of the battery cell where the tab is provided in the length direction of the battery cell, and the protective plate is arranged close to the top seal. This will result in a dual-cell battery where a side seal of one battery cell is adjacent to a side seal of another battery cell, and both adjacent side seals extend out of the end of the battery cell where the tab is provided. In the prior art, a PCB (Printed Circuit Board) is usually used as a protective plate. In order to avoid interference with these two side seals, it is necessary to slot the PCB board, which will cause the PCB board to be easily stressed and deformed, and the current-carrying capacity at the slot is reduced. In order to improve the stability and current-carrying capacity of the PCB board, it is necessary to increase the width and thickness of the PCB board, which increases the head space occupied by the protective plate. Utility Model Content

[0004] The purpose of the utility model is to provide a battery and a terminal device, so as to solve the technical problem in the prior art that the protection board occupies a large head space of the battery cell to a certain extent.

[0005] The object of the present utility model is to provide a battery, comprising a battery cell, wherein a pole ear is provided at the head of the battery cell, and a plurality of the battery cells are arranged side by side in the width direction of the battery cell, and side seals are provided on both sides of the battery cell, and the side seals extend out of the head of the battery cell; the battery also comprises: a protective plate, wherein the protective plate is connected to the pole ear, and the protective plate comprises: a hard plate unit, wherein a plurality of the hard plate units are correspondingly arranged at the heads of the plurality of the battery cells; a gap is provided between at least two adjacent hard plate units for the side seals between two adjacent battery cells to pass through; a connecting soft board, wherein the connecting soft board comprises a connecting portion and a bending portion connected to each other; the hard plate unit is connected to the connecting portion, and a notch corresponding to the gap is provided on the connecting portion; the bending portion is located at the notch and extends in a direction away from the notch, and the bending portion is bent to the outside of the side seal.

[0006] The battery provided by the utility model includes a plurality of battery cells, and the protection plate includes a connecting soft plate and a plurality of hard plate units, which avoids the use of a hard plate with a larger entire length to connect the plurality of battery cells. Compared with the longer hard plate, the shorter hard plate unit itself has good stability and is not easy to deform; the end of the side seal is accommodated by the gap between two adjacent hard plate units, which avoids grooving on the hard plate unit and further ensures the stability of the hard plate unit; the two adjacent hard plate units are connected by the connecting soft plate, which can ensure the normal current carrying capacity of the protection plate, avoid increasing the thickness and width of the hard plate unit, and thus reduce the head space occupied by the battery cells; the bending part of the soft plate can be set to a size as needed to meet the current carrying capacity.

[0007] Therefore, in the battery provided by the present invention, the protective plate not only ensures stability and current-carrying capacity, but also reduces the head space occupied by the battery cell, thereby facilitating a thinner head section of the battery. The protective plate occupies less head space in the battery, allowing the size of the battery cell to be increased while maintaining the same battery length, thereby increasing the battery capacity. Furthermore, the bent portion connecting the flexible board is located outside the side seal, thus protecting the side seal.

[0008] Furthermore, the thickness direction of the protection plate is parallel to the length direction of the battery cell.

[0009] Furthermore, the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are connected to one side in the width direction of the bending portion, and the first connecting portion and the second connecting portion are not protruding from the side of the bending portion along at least one side in the length direction of the hard board unit.

[0010] Furthermore, the two adjacent hard board units include a first hard board unit and a second hard board unit; one end of the first hard board unit is connected to one end of the first connecting part, and one end of the second hard board unit is connected to one end of the second connecting part; the first hard board unit and the second hard board unit are respectively provided with tab pads, and the tabs are respectively connected to the first hard board unit and the second hard board unit through the tab pads.

[0011] Furthermore, the hard board units are arranged one-to-one at the heads of the plurality of battery cells; the hard board units include a hard board; the number of the connecting soft boards is multiple, and two adjacent hard board units are connected through a connecting soft board.

[0012] Furthermore, the connecting part includes a first connecting part and a second connecting part, and the first connecting part and the second connecting part are connected to one side of the width direction of the bending part; the first connecting part is provided with a plurality of the hard plate units, and the projections of the plurality of the hard plate units along the thickness direction of the hard plate units all fall on the first connecting part; the second connecting part is provided with a plurality of the hard plate units, and the projections of the plurality of the hard plate units along the thickness direction of the hard plate units all fall on the second connecting part.

[0013] Furthermore, a tab pad is provided on the connecting portion, or a tab pad is provided on a side of the hard board unit away from the battery cell head; and the tab is connected to the tab pad.

[0014] Furthermore, the bent portion includes a first portion, and the first portion is bent to one side of the side sealing edge in the thickness direction of the battery core.

[0015] Furthermore, the bent portion includes a second portion connected to the first portion, and the second portion is bent to a side of the side seal away from the battery cell head.

[0016] The utility model provides a terminal device, comprising a battery compartment and the above-mentioned battery, wherein the battery is installed in the battery compartment.

[0017] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. Together, the description and the drawings serve to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a battery according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 The schematic diagram of the structure of the protection board in the battery shown;

[0021] Figure 3 A top view of a battery according to another embodiment of the present invention;

[0022] Figure 4 for Figure 3 A side view of the multi-cell battery shown;

[0023] Figure 5 for Figure 3 The schematic diagram of the structure of the protection board in the battery shown;

[0024] Figure 6 for Figure 5 Exploded view of the protection plate shown;

[0025] Figure 7 for Figure 3 A schematic diagram of the structure in which the protection plate is installed on the battery cell;

[0026] Figure 8 This is a schematic structural diagram of a battery according to another embodiment of the present invention.

[0027] icon:

[0028] 1-battery cell;

[0029] 2-Pole ear;

[0030] 3-Side sealing;

[0031] 4-protection plate; 41-hard board unit; 42-connecting soft board; 43-notch; 411-first hard board unit; 412-second hard board unit; 421-connecting portion; 422-bending portion; 4211-first connecting portion; 4212-second connecting portion; 4221-first portion; 4222-second portion;

[0032] 5- Gap. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0035] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0039] like Figures 1 to 7As shown, the utility model provides a battery, comprising a battery cell 1, wherein the head of the battery cell 1 is provided with a tab 2, and in the width direction of the battery cell 1, a plurality of the battery cells 1 are arranged side by side, and side seals 3 are provided on both sides of the battery cell 1, and the side seals 3 extend out of the head of the battery cell 1; the battery further comprises: a protective plate 4, wherein the protective plate 4 is connected to the tab 2, and the protective plate 4 comprises: a hard board (Circuit Board, printed circuit board, referred to as PCB) unit, wherein a plurality of the hard board units 41 are correspondingly arranged at the heads of the plurality of the battery cells 1; a gap 5 for the two adjacent side seals 3 of the two adjacent battery cells 1 to pass through is provided between at least two adjacent hard board units 41; a connecting flexible board 42 (flexible board refers to, Flexible Printed Circuit board, flexible printed circuit board, abbreviated as FPC), the connecting soft board 42 includes a connecting portion 421 and a bending portion 422 that are interconnected; the hard board unit 41 is connected to the connecting portion 421, and the connecting portion 421 is provided with a notch 43 corresponding to the gap 5; the bending portion 422 is located at the notch 43 and extends in a direction away from the notch 43 (it can be understood that the bending portion 422 extends in the width direction of the hard board unit 41 before bending, that is, in a direction away from the hard board), and the bending portion 422 is bent to the outside of the side seal 3 (that is, the connecting portion 421 is connected to the hard board unit 41, the bending portion 422 is connected to the connecting portion 421, and the bending portion 422 is located on the outside of the side seal 3, and "outside" refers to the direction away from the side seal 3).

[0040] It should be noted that the battery cell described in this application includes a main body, a top seal and two side seals. The main body includes two side walls and a head. The top seal is connected to the head and extends along a plane parallel to the head. The side seal is connected to the side wall and extends along a plane parallel to the side wall. The top seal and the two side seals are connected, and the intersection forms the side seal mentioned in this application. When the protective plate 4 is set on the heads of multiple battery cells, the protective plate 4 needs to avoid the side seal 3. And the thickness direction of the protective plate 4 is parallel to the length direction of the battery cell, that is, the protective plate 4 is placed horizontally on the head of the battery cell.

[0041] In this embodiment, a gap 5 is provided between at least two adjacent hard board units 41, and a notch 43 corresponding to the gap 5 is provided on the connecting portion 421 of the connecting soft board 42 between the two adjacent hard board units 41. Then, in the two adjacent battery cells 1 corresponding to the two adjacent hard board units 41, the ends of the two adjacent side seals 3 can be inserted into the gap 5, and the notch 43 can also avoid the side seals 3 to avoid interference with the side seals 3. Specifically, one of the two adjacent hard board units 41 is a first hard board unit 411, and the other is a second hard board unit 412. The battery cell 1 corresponding to the first hard board unit 411 is the first battery cell 1, and the battery cell 1 corresponding to the second hard board unit 412 is the second battery cell 1. The side seal 3 of the first battery cell 1 close to the second battery cell 1 and the side seal 3 of the second battery cell 1 close to the first battery cell 1 can be passed through the gap 5.

[0042] The battery provided in this embodiment includes a plurality of battery cells 1, and the protective plate 4 includes a connecting soft plate 42 and a plurality of hard plate units 41, which avoids the use of a hard plate with a larger entire length to connect with the plurality of battery cells 1. Compared with the longer hard plate, the shorter hard plate unit 41 has good stability and is not easy to deform. The end of the side sealing edge 3 is accommodated by the gap 5 between the two adjacent hard plate units 41, which avoids grooving on the hard plate unit 41 and further ensures the stability of the hard plate unit 41. The two adjacent hard plate units 41 are connected by the connecting soft plate 42, which can ensure the normal current carrying capacity of the protective plate 4 and avoid increasing the thickness and width of the hard plate unit 41, thereby reducing the head space occupied by the battery cell 1. The bending portion 422 of the soft plate can be sized as needed to meet the current carrying capacity.

[0043] Therefore, in the battery provided by this embodiment, the protective plate 4 not only ensures stability and current-carrying capacity, but also reduces the head space occupied by the battery cell 1, thereby facilitating a thinner head section of the battery. The protective plate 4 occupies less head space in the battery, allowing the size of the battery cell 1 to be increased while maintaining the same battery length, thereby increasing the battery capacity. Furthermore, the bent portion 422 connecting the flexible plate 42 is located outside the side seal, thus protecting the side seal.

[0044] It is understandable that when the hard board unit 41 is connected to the tab 2 of the battery cell 1, a tab pad may be provided on the hard board unit 41, and the tab pad is welded to the tab 2 to achieve the connection between the hard board unit 41 and the tab 2. Similarly, when the flexible board 42 is connected to the tab 2, a tab pad may be provided on the flexible board 42, and the tab pad is welded to the tab 2 to achieve the connection between the flexible board 42 and the tab 2.

[0045] Multiple hard board units 41 are arranged correspondingly at the heads of multiple battery cells 1. It can be one hard board unit 41 corresponding to multiple battery cells 1, or one hard board unit 41 corresponding to one hard board unit 41, but there are at least two adjacent hard board units 41 corresponding to two battery cells 1 respectively. It can be understood that the two battery cells 1 are arranged adjacent to each other.

[0046] The width direction of the protection plate 4 may be parallel to the length direction of the battery cell 1 .

[0047] As an alternative, Figure 1 As shown, the thickness direction of the protection plate 4 is parallel to the length direction of the battery cell 1 .

[0048] In this embodiment, the thickness of the protective plate 4 is smaller than the width of the protective plate 4. The thickness direction of the protective plate 4 is set to be parallel to the length direction of the battery cell 1, which can further reduce the head space occupied by the protective plate 4 to further thin the head of the battery, further helping to increase the battery capacity.

[0049] Based on the above embodiment, the connection flexible board 42 can have various structural forms, as an optional solution:

[0050] The connection part 421 includes a first connection part 4211 and a second connection part 4212, and the first connection part 4211 and the second connection part 4212 are connected to one side of the width direction of the bending part 422, and the first connection part 4211 and the second connection part 4212 are not protruding from the side of the bending part 422 along at least one side of the length direction of the hard plate unit 41.

[0051] In this embodiment, specifically, in the length direction of the hard plate unit 41, the bending portion 422 has a first side and a second side opposite to each other, the first connecting portion 4211 corresponds to the first side, the second connecting portion 4212 corresponds to the second side, and at least one side portion of the first connecting portion 4211 and the second connecting portion 4212 along the length direction of the hard plate unit 41 does not protrude from the side portion of the bending portion 422. The side portion arrangement may be: a side portion of the first connecting portion 4211 away from the second connecting portion 4212 does not protrude from the first side portion of the bending portion 422 (a side portion of the first connecting portion 4211 away from the second connecting portion 4212 is flush with the first side portion of the bending portion 422, or the first side portion of the bending portion 422 protrudes flush with the first connecting portion 4211). 4212); or, the side of the second connection part 4212 away from the first connection part 4211 does not protrude from the second side of the bending part 422 (the side of the second connection part 4212 away from the first connection part 4211 is flush with the second side of the bending part 422, or the second side of the bending part 422 is flush and extends out of the side of the second connection part 4212 away from the first connection part 4211); or, the side of the first connection part 4211 away from the second connection part 4212 does not protrude from the first side of the bending part 422, and at the same time, the side of the second connection part 4212 away from the first connection part 4211 does not protrude from the second side of the bending part 422. Optionally, as Figure 2 As shown, one side of the first connection part 4211 away from the second connection part 4212 is flush with the first side of the bending part 422. At the same time, one side of the second connection part 4212 away from the first connection part 4211 is flush with the second side of the bending part 422, which is convenient for processing.

[0052] On the basis of the above embodiment, further, the two adjacent hard board units 41 include a first hard board unit 411 and a second hard board unit 412; one end of the first hard board unit 411 is connected to one end of the first connecting portion 4211, and one end of the second hard board unit 412 is connected to one end of the second connecting portion 4212; the first hard board unit 411 and the second hard board unit 412 are respectively provided with tab pads, and the tabs 2 are respectively connected to the first hard board unit 411 and the second hard board unit 412 through the tab pads.

[0053] In this embodiment, in the length direction of the protective plate 4, the hard plate unit 41 includes a first end and a second end, and the second end of the first hard plate unit 411 is arranged adjacent to the first end of the second hard plate unit 412. One end of the first connecting portion 4211 can be connected to the first end of the first hard plate unit 411, and at the same time, one end of the second connecting portion 4212 is connected to the second end of the second hard plate unit 412; or, one end of the first connecting portion 4211 can be connected to the first end of the first hard plate unit 411, and at the same time, one end of the second connecting portion 4212 is connected to the first end of the second hard plate unit 412; or, one end of the first connecting portion 4211 can be connected to the second end of the first hard plate unit 411, and at the same time, one end of the second connecting portion 4212 is connected to the second end of the second hard plate unit 412; optionally, as Figure 2 As shown, one end of the first connecting portion 4211 can be connected to the second end of the first rigid board unit 411, while one end of the second connecting portion 4212 is connected to the first end of the second rigid board unit 412. The structure of the flexible board 42 is simple, takes up little space, and is easy to install. In this case, tab pads are provided on both the first rigid board unit 411 and the second rigid board unit 412.

[0054] On the basis of the above embodiment, further, the hard board units 41 are arranged one-to-one at the heads of multiple battery cells 1, that is, every two adjacent hard board units 41 correspond to two adjacent battery cells 1. This arrangement facilitates the connection between the protection plate 4 and the tab 2.

[0055] Each rigid board unit 41 may include multiple rigid boards. Multiple rigid boards may be spaced along the length of the protective board 4, or spaced along the lengthwise direction of the protective board 4. Alternatively, multiple rigid boards may be spaced along both the lengthwise direction and the widthwise direction of the protective board 4. Within the same rigid board unit 41, an intermediate soft board is provided between two adjacent rigid boards, connecting the two adjacent rigid boards together. Within two adjacent rigid board units 41, the rigid board in the first rigid board unit 41 that is adjacent to the second rigid board unit 41 is connected to the rigid board in the second rigid board unit 41 that is adjacent to the first rigid board unit 41 via a connecting soft board 42.

[0056] Alternatively, as Figure 8 As shown, the hard board unit 41 includes a hard board; the number of connecting soft boards 42 is multiple, and two adjacent hard board units 41 are connected by a connecting soft board 42. This structure is convenient for assembly.

[0057] As another option:

[0058] like Figure 5 and Figure 6As shown, the connection part 421 includes a first connection part 4211 and a second connection part 4212, and the first connection part 4211 and the second connection part 4212 are connected to one side of the bending part 42 in the width direction; the first connection part 4211 is provided with a plurality of hard board units 41, and the projections of the plurality of hard board units 41 along the thickness direction of the hard board unit 41 all fall on the first connection part 4211, that is, the first connection part 4211 is connected to the plurality of hard board units 41, and the first connection part 4211 can cover these plurality of hard board units 41; the second connection part 4212 is provided with a plurality of hard board units 41, and the projections of the plurality of hard board units 41 along the thickness direction of the hard board unit 41 all fall on the second connection part 4212, that is, the first connection part 4211 is connected to the plurality of hard board units 41, and the first connection part 4211 can cover these plurality of hard board units 41.

[0059] The first connection portion 4211 may be provided with one hard board unit 41, and the second connection portion 4212 may be provided with one hard board unit 41. Alternatively, the first connection portion 4211 may be provided with one hard board unit 41, and the second connection portion 4212 may be provided with multiple hard board units 41. Alternatively, the first connection portion 4211 may be provided with multiple hard board units 41, and the second connection portion 4212 may be provided with one hard board unit 41. Alternatively, the first connection portion 4211 may be provided with multiple hard board units 41, and the second connection portion 4212 may be provided with multiple hard board units 41.

[0060] If a rigid plate unit 41 connected to the first connection portion 4211 and another rigid plate unit 41 connected to the second connection portion 4212 are adjacently arranged, and these two rigid plate units 41 correspond to two adjacent battery cells 1, a notch 43 is provided between the first connection portion 4211 and the second connection portion. If, among the multiple rigid plate units 41 corresponding to the first connection portion 4211, two adjacent rigid plate units 41 correspond to two adjacent battery cells 1, a notch 43 is provided in the first connection portion 4211. Similarly, if, among the multiple rigid plate units 41 corresponding to the second connection portion 4212, two adjacent rigid plate units 41 correspond to two adjacent battery cells 1, a notch 43 is provided in the second connection portion 4212.

[0061] The hard board unit 41 may include one hard board. The hard board unit 41 may also include multiple hard boards. The first connecting portion 4211 may cover multiple hard boards, and the second connecting portion 4212 may also cover multiple hard boards, thereby avoiding the use of an intermediate soft board to connect multiple hard boards in the same hard board unit 41, thereby facilitating assembly.

[0062] On the basis of the above embodiment, a tab pad can be further provided on the connecting portion 421, and the tab 2 is welded to the tab pad, thereby realizing the connection between the tab 2 and the connecting flexible board 42, and further realizing the connection between the tab 2 and the protective board 4. Alternatively, a tab pad is provided on the side of the hard board unit 41 away from the head of the battery cell 1, and the tab 2 is welded to the tab pad, thereby realizing the connection between the tab 2 and the hard board unit 41, and further realizing the connection between the tab 2 and the protective board 4.

[0063] It can be understood that the connecting portion 421 is connected to a side of the hard board unit 41 close to the battery cell 1 .

[0064] Based on the above embodiment, the bending portion 422 further includes a first portion 4221, the first portion 4221 is connected to the connecting portion 421, and the first portion 4221 is bent to one side of the side sealing edge 3 along the thickness direction of the battery cell 1, that is, the gap formed by the outer side of the side sealing edge 3 and the head of the battery cell 1.

[0065] Based on the above embodiment, further, Figure 4 As shown, the bent portion 422 includes a second portion 4222 connected to the first portion 4221 , and the second portion 4222 is bent to a side of the side seal 3 away from the head of the battery cell 1 , that is, the top of the side seal 3 .

[0066] Specifically, the bending portion 422 can be divided into a first portion 4221 and a second portion 4222 according to the length. If there is only the first portion 4221, then Figure 4 As shown, a single bend is performed, with the first portion 4221 located on one side of the side seal 3 in the thickness direction. When the bent portion 422 has a second portion 4222, the bent portion 422 can be bent a second time, with the second portion 4222 bent to the top of the side seal 3. This bending method can reduce the space occupied by the bent portion 422 as a whole in the head of the battery cell 1, effectively increasing the capacity density of the battery cell.

[0067] Based on the above embodiments, the number of battery cells 1 can be two, three, four or five, etc.

[0068] The present invention provides a terminal device (e.g., a mobile phone or tablet computer) including a battery compartment and a battery according to any of the above technical solutions. The terminal device includes all the benefits of the battery, which will not be described in detail. The battery head provided in this embodiment has a small thickness and a large capacity of the battery cell 1, thereby increasing the capacity of the battery and thus extending the battery life of the terminal device.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the various embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments.

Claims

1. A battery, comprising a cell, wherein the head of the cell is provided with a tab, a plurality of the cells are arranged side by side in the width direction of the cell, and side seals are provided on both sides of the cell, and the side seals extend out of the head of the cell; characterized in that: Also includes: A protection plate, the protection plate is connected to the pole lug, and the protection plate comprises: A hard plate unit, wherein a plurality of the hard plate units are correspondingly arranged at the heads of the plurality of the battery cells; a gap is provided between at least two adjacent hard plate units for the side sealing edge between the two adjacent battery cells to pass through; A connecting soft board, the connecting soft board includes a connecting portion and a bending portion that are connected to each other; the hard board unit is connected to the connecting portion, and a notch corresponding to the gap is provided on the connecting portion; the bending portion is located at the notch and extends in a direction away from the notch, and the bending portion is bent to the outside of the side seal.

2. The battery according to claim 1, characterized in that The thickness direction of the protection plate is parallel to the length direction of the battery cell.

3. The battery according to claim 2, characterized in that The connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are connected to one side in the width direction of the bending portion, and at least one side of the first connecting portion and the second connecting portion along the length direction of the hard board unit does not protrude from the side of the bending portion.

4. The battery according to claim 3, characterized in that The two adjacent hard board units include a first hard board unit and a second hard board unit; One end of the first hard board unit is connected to one end of the first connecting portion, and one end of the second hard board unit is connected to one end of the second connecting portion; The first hard board unit and the second hard board unit are respectively provided with tab pads, and the tabs are respectively connected to the first hard board unit and the second hard board unit through the tab pads.

5. The battery according to claim 3 or 4, characterized in that: The hard plate unit is arranged on the heads of the plurality of battery cells in a one-to-one correspondence; the hard plate unit comprises a hard plate; There are multiple connecting soft boards, and two adjacent hard board units are connected via one connecting soft board.

6. The battery according to claim 2, characterized in that The connecting portion includes a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are connected to one side of the bending portion in the width direction; The first connecting portion is provided with a plurality of the hard plate units, and projections of the plurality of the hard plate units along the thickness direction of the hard plate units all fall on the first connecting portion; The second connecting portion is provided with a plurality of the hard plate units, and projections of the plurality of the hard plate units along the thickness direction of the hard plate units all fall on the second connecting portion.

7. The battery according to claim 6, characterized in that The connecting portion is provided with a tab pad, or the side of the hard board unit away from the battery cell head is provided with a tab pad; The tab is connected to the tab pad.

8. The battery according to claim 1, characterized in that The bent portion includes a first portion, and the first portion is bent to one side of the side sealing edge in the thickness direction of the battery core.

9. The battery according to claim 8, characterized in that The bent portion includes a second portion connected to the first portion, and the second portion is bent to a side of the side seal away from the battery cell head.

10. A terminal device, characterized in that: It comprises a battery compartment and a battery as described in any one of claims 1 to 9, wherein the battery is installed in the battery compartment.

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