Battery and electronic device having the same

Abstract

The application provides a battery and an electronic device with the same, the battery comprising: a first battery cell, the outer package of the first battery cell having a first side sealing edge and a first end sealing edge arranged adjacently, both the first side sealing edge and the first end sealing edge being folded towards the body of the first battery cell, and the intersection of the first side sealing edge and the first end sealing edge forming a first folding corner; a second battery cell, the outer package of the second battery cell having a second end sealing edge, the second end sealing edge being folded towards the body of the second battery cell, and one end of the second end sealing edge being provided with a second folding corner; wherein the first folding corner forms a convex structure, the second folding corner forms a notch structure, and at least part of the convex structure is embedded in the notch structure. The battery of the embodiment of the application solves the technical problem that, in the prior art, the folding corner of the sealing edge at the intersection of the adjacent battery cells is too high, thereby interfering with the arrangement of other components and devices, and further causing the difficulty in assembling the battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of batteries, in particular to a battery and an electronic device with the same. BACKGROUND

[0002] With the increasing of the intelligent degree of electronic products, the power consumption of the electronic products is also increasing. In order to meet the power demand of the electronic products, it is necessary to improve the battery power as much as possible under the premise of ensuring the battery capacity. At present, the main means to improve the power of soft package battery is to increase the number of battery cells.

[0003] In the related art, when the plurality of battery cells are arranged side by side, the edge folding corners of adjacent battery cells are prone to overlap, resulting in a too high height of the folding corner protrusion, which is likely to interfere with the installation of other components, leading to difficulty in assembling the battery. For example, when the battery cells are arranged side by side, the edge folding corners of adjacent battery cells overlap, resulting in a too high height of the folding corner protrusion, which leads to interference between the battery protection plate, and it is necessary to set a avoiding groove on the battery protection plate or design the battery protection plate as a split structure to avoid the folding corner, which brings certain difficulty to the assembly of the battery.

[0004] It can be seen that in the related art, there is a technical problem of interference with the arrangement of other components due to the too high height of the edge folding corner protrusion at the junction of adjacent battery cells, which leads to difficulty in assembling the battery. At present, there is still lack of effective solutions to this technical problem. SUMMARY

[0005] The main purpose of the present application is to provide a battery and an electronic device with the same, to solve the technical problem of interference with the arrangement of other components due to the too high height of the edge folding corner protrusion at the junction of adjacent battery cells in the related art, which leads to difficulty in assembling the battery.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a battery is provided, which comprises: a first battery cell, the outer package of the first battery cell has a first side edge and a first end edge arranged adjacent to each other, the first side edge and the first end edge are both folded towards the body of the first battery cell, and the junction of the first side edge and the first end edge forms a first folding corner; a second battery cell, the outer package of the second battery cell has a second end edge, the second end edge is folded towards the body of the second battery cell, and one end of the second end edge is provided with a second folding corner; wherein the first folding corner forms a protruding structure, the second folding corner forms a notch structure, and at least part of the protruding structure is embedded in the notch structure.

[0007] Further, the battery comprises: a protection plate, the protection plate is electrically connected with the first tab of the first battery cell and the second tab of the second battery cell, and the protection plate is installed at the first end of the first battery cell and the first end of the second battery cell, wherein the first end edge is arranged at the first end of the first battery cell, and the second end edge is arranged at the first end of the second battery cell.

[0008] Further, the first battery cell comprises a second side sealing edge, the first side sealing edge and the second side sealing edge are respectively arranged on opposite sides of the body part of the first battery cell, the second side sealing edge is folded towards the body of the first battery cell, a third corner is formed at the intersection of the second side sealing edge and the first end sealing edge, the third corner protrudes from the body of the first battery cell, and at least part of the third corner is located on the first side of the protection plate along the length direction of the protection plate.

[0009] Further, the second battery cell comprises a third side sealing edge, the third side sealing edge is located on a side of the body of the second battery cell away from the first battery cell, the third side sealing edge is folded towards the body of the second battery cell, a fourth corner is formed at the intersection of the third side sealing edge and the second end sealing edge, the fourth corner protrudes from the body of the second battery cell, and at least part of the fourth corner is located on the second side of the protection plate along the length direction of the protection plate, the first side of the protection plate and the second side of the protection plate being opposite sides of the protection plate.

[0010] Further, the side of the second battery cell close to the first battery cell is free of sealing edge structure.

[0011] Further, the free end of the second corner is located between the main part of the second end sealing edge and the body of the second battery cell, or the free end of the second corner is located on a side of the main part of the second end sealing edge away from the body of the second battery cell.

[0012] Further, the battery comprises a third battery cell, the outer package of the third battery cell has a third end sealing edge, the third end sealing edge is folded towards the body of the third battery cell, one end of the third end sealing edge is provided with a fifth corner, the fifth corner is a notch structure, and the first battery cell comprises a second side sealing edge, the first side sealing edge and the second side sealing edge are respectively arranged on opposite sides of the body part of the first battery cell, the second side sealing edge is folded towards the body of the first battery cell, a third corner is formed at the intersection of the second side sealing edge and the first end sealing edge, the third corner protrudes from the body of the first battery cell, and the third corner and the fifth corner are inlaid fit; or the second battery cell comprises a third side sealing edge, the third side sealing edge is located on a side of the body of the second battery cell away from the first battery cell, the third side sealing edge is folded towards the body of the second battery cell, a fourth corner is formed at the intersection of the third side sealing edge and the second end sealing edge, the fourth corner protrudes from the body of the second battery cell, and the fourth corner and the fifth corner are inlaid fit.

[0013] Further, the battery comprises a glue injection structure, at least part of the glue injection structure is filled between the protection plate and the battery cell structure, and the battery cell structure is a structure composed of the first battery cell and the second battery cell.

[0014] Further, the glue injection structure comprises: a main body part, the extension direction of the main body part is consistent with the extension direction of the protection plate, and the main body part fills at least part of the gap between the protection plate and the battery cell structure; and an extension part, the extension part is connected with the main body part, and the extension part fills at least part of the gap between the first battery cell and the second battery cell.

[0015] Further, the protection plate is provided with a connecting part, and the first tab and / or the second tab are electrically connected with the connecting part, wherein: the connecting part is arranged on the side of the protection plate close to the first battery cell and the second battery cell; or the connecting part is arranged on the side of the protection plate away from the first battery cell and the second battery cell.

[0016] Further, the protruding direction of the first corner is consistent with the extension direction of the first end sealing edge; or the protruding direction of the first corner forms a preset included angle with the extension direction of the first end sealing edge, wherein, along the extension direction of the first side sealing edge, the protruding height of the first corner is not more than 2 mm.

[0017] According to another aspect of the present application, an electronic device is provided, comprising: a device main body, the device main body being provided with a battery compartment; and a battery, the battery being installed in the battery compartment, and the battery being the above-mentioned battery.

[0018] Further, the second battery cell of the battery comprises a fourth end sealing edge, the fourth end sealing edge and the second end sealing edge are respectively arranged on opposite sides of the second battery cell, the fourth end sealing edge is folded towards the body of the second battery cell, and a sixth corner is formed at the intersection of the fourth end sealing edge and the third side sealing edge; wherein, the device main body is provided with a avoiding slot, the avoiding slot is communicated with the battery compartment, and at least part of the sixth corner is located in the avoiding slot.

[0019] The battery applying the technical scheme of the present application comprises a first battery cell and a second battery cell, the outer package of the first battery cell has a first side sealing edge and a first end sealing edge arranged adjacently, both of which are folded to be attached to the body of the first battery cell, and the intersection of both is folded to form a protruding first corner. The outer package of the second battery cell has a second end sealing edge, one end of the second end sealing edge is provided with a notched second corner. By arranging the two corners adjacent to the first battery cell and the second battery cell as protruding structure and notched structure respectively, the cooperation of the two can be realized through the fitting of the protruding structure and the notched structure, so that the corners will not be stacked at the intersection of the first battery cell and the second battery cell, which is conducive to better control of the protruding height of the corners at the intersection of the first battery cell and the second battery cell, thereby effectively avoiding the interference of the corner protrusion with other components, facilitating the assembly operation of the battery, and solving the technical problem that the protrusion of the sealing edge corner at the intersection of the adjacent battery cells is too high to interfere with the arrangement of other components, thereby causing difficulty in battery assembly in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an implementation of the application and, together with the description, serve to explain the application. In the drawings,

[0021] Figure 1 An exploded view of a first embodiment of a battery of the present application;

[0022] Figure 2 An assembled view of a first embodiment of a battery of the present application;

[0023] Figure 3 An assembled view of a first embodiment of a battery of the present application;

[0024] Figure 4 An assembled view of a first embodiment of a battery of the present application;

[0025] Figure 5 An assembled view of a first embodiment of a battery of the present application;

[0026] Figure 6 An assembled view of a first embodiment of a battery of the present application;

[0027] Figure 7 An assembled view of a first embodiment of a battery of the present application;

[0028] Figure 8 An assembled view of a first embodiment of a battery of the present application;

[0029] Figure 9 An exploded view of a second embodiment of a battery of the present application;

[0030] Figure 10 An assembled view of a second embodiment of a battery of the present application;

[0031] Figure 11 An assembled view of a second embodiment of a battery of the present application;

[0032] Figure 12 An assembled view of a second embodiment of a battery of the present application;

[0033] Figure 13 An exploded view of a third embodiment of a battery of the present application;

[0034] Figure 14 Fig. 2 is a schematic view of an embodiment of the battery of the present application, showing the overall and partial enlarged structure of the second cell when the second fold angle is folded inwardly;

[0035] Figure 15 Fig. 3 is a schematic view of an embodiment of the battery of the present application, showing the partial structure when the connecting part of the protection plate is located at the outer side;

[0036] Figure 16 Fig. 4 is a schematic view of an embodiment of the battery of the present application, showing the structure when the first fold angle is at a preset angle with the first end edge;

[0037] Figure 17 Fig. 5 is a schematic view of an embodiment of the electronic device of the present application, showing the overall and partial enlarged structure.

[0038] In the above drawings, the following reference signs are used:

[0039] 1, first cell; 10, first tab; 11, first side edge; 12, first end edge; 13, first fold angle; 14, second side edge; 15, third fold angle; 2, second cell; 20, second tab; 21, second end edge; 22, second fold angle; 23, third side edge; 24, fourth fold angle; 25, fourth end edge; 26, sixth fold angle; 3, protection plate; 4, third cell; 41, third end edge; 42, fifth fold angle; 5, glue injection structure; 51, main body part; 52, extension part; 100, device main body; 101, avoiding groove; 200, battery. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0041] Reference should be made to Figures 1 to 16 The embodiment of the present application provides a battery, which comprises: a first cell 1, the outer package of the first cell 1 has a first side edge 11 and a first end edge 12 arranged adjacently, both the first side edge 11 and the first end edge 12 are folded towards the body of the first cell 1, and the intersection of the first side edge 11 and the first end edge 12 forms a first fold angle 13; a second cell 2, the outer package of the second cell 2 has a second end edge 21, the second end edge 21 is folded towards the body of the second cell 2, and one end of the second end edge 21 is provided with a second fold angle 22; wherein the first fold angle 13 forms a convex structure, the second fold angle 22 forms a notch structure, and at least part of the convex structure is inlaid in the notch structure.

[0042] The battery with the structure design comprises a first battery cell 1 and a second battery cell 2. The outer package of the first battery cell 1 has a first side sealing edge 11 and a first end sealing edge 12 arranged adjacently, both of which are folded to be attached to the body of the first battery cell 1, and the joint of the two is folded to form a first folded corner 13 in a protruding manner. The outer package of the second battery cell 2 has a second end sealing edge 21, and one end of the second end sealing edge 21 is provided with a second folded corner 22 in a notch manner. By arranging the two folded corners of the first battery cell 1 and the second battery cell 2 adjacently in a protruding structure and a notch structure respectively, the cooperation of the two can be realized through the fitting of the protruding structure and the notch structure, so that the folded corners will not be stacked at the joint of the first battery cell 1 and the second battery cell 2, which is beneficial to better control the protruding height of the folded corners at the joint of the first battery cell 1 and the second battery cell 2, thereby effectively avoiding the interference of the folded corner protrusion on other components, facilitating the assembly operation of the battery, and solving the technical problem that the protruding folded corner of the sealing edge at the joint of the adjacent battery cells is too high to cause interference with the arrangement of other components, thereby leading to the difficulty in assembling the battery.

[0043] In addition, through the fitting of the protruding structure and the notch structure, the space occupied by the folded corner protrusion can be reduced, the arrangement of the battery structure is more compact, the space utilization rate of the battery is improved, and the energy density of the battery is further improved.

[0044] As shown in Figure 1 , specifically, the battery comprises a protection plate 3, the protection plate 3 is electrically connected with the first tab 10 of the first battery cell 1, the protection plate 3 is electrically connected with the second tab 20 of the second battery cell 2, and the protection plate 3 is installed at the first end of the first battery cell 1 and the first end of the second battery cell 2, wherein the first end sealing edge 12 is arranged at the first end of the first battery cell 1, and the second end sealing edge 21 is arranged at the first end of the second battery cell 2. Specifically, the protection plate 3 is attached to the surface of the first end sealing edge 12, and the protection plate 3 is attached to the surface of the second end sealing edge 21.

[0045] As shown in Figures 1 to 8 , in this embodiment, the first battery cell 1 comprises a second side sealing edge 14, the first side sealing edge 11 and the second side sealing edge 14 are arranged on opposite sides of the body part of the first battery cell 1 respectively, the second side sealing edge 14 is folded towards the body of the first battery cell 1, the joint of the second side sealing edge 14 and the first end sealing edge 12 forms a third folded corner 15, and the third folded corner 15 protrudes from the body of the first battery cell 1, wherein at least part of the third folded corner 15 is located on the first side of the protection plate 3 along the length direction of the protection plate 3.

[0046] In the embodiment, the side of the first battery cell 1 opposite to the first side edge 11 is provided with a second side edge 14, that is, the side of the first battery cell 1 away from the second battery cell 2 is provided with the second side edge 14. In order to better accommodate the second side edge 14 and reduce the occupation of space, in the embodiment, the intersection of the second side edge 14 and the first end edge 12 is folded to form a third corner 15. The third corner 15 is arranged on one side of the protection plate 3, that is, the third corner 15 is located at the end of the protection plate 3, so that the third corner 15 does not protrude to interfere with the arrangement of the protection plate 3, and the space on one side of the protection plate 3 can be reasonably utilized, so that the space arrangement of the battery structure is more compact, and the energy density of the battery is improved.

[0047] The length direction of the protection plate 3 is the direction in which the protection plate 3 has the largest size. For example, the protection plate 3 has a strip-shaped structure, and the length direction of the protection plate 3 is the length extension direction of the strip-shaped structure.

[0048] The second battery cell 2 includes a third side edge 23 located on the side of the second battery cell 2 body away from the first battery cell 1. The third side edge 23 is folded towards the body of the second battery cell 2. The intersection of the third side edge 23 and the second end edge 21 forms a fourth corner 24 protruding from the body of the second battery cell 2. At least part of the fourth corner 24 is located on the second side of the protection plate 3 along the length direction of the protection plate 3. The first side of the protection plate 3 and the second side of the protection plate 3 are opposite sides of the protection plate 3.

[0049] In the embodiment, the side of the second battery cell 2 away from the first battery cell 1 is provided with the third side edge 23. In order to better accommodate the third side edge 23, the third side edge 23 is folded towards the body of the second battery cell 2. The intersection of the third side edge 23 and the second end edge 21 is folded to form a fourth corner 24. In the embodiment, the fourth corner 24 is arranged on the other side of the protection plate 3, that is, the fourth corner 24 is located at the other end of the protection plate 3. That is, the protection plate 3 is located between the third corner 15 and the fourth corner 24. In this way, the third corner 15 and the fourth corner 24 do not protrude to interfere with the arrangement of the protection plate 3, and the space at the end of the protection plate 3 can be reasonably utilized, so that the space arrangement of the battery structure is more compact, and the energy density of the battery is improved.

[0050] In actual implementation, the protruding directions of the third corner 15 and the fourth corner 24 can be various. As a preferred embodiment, the third corner 15 and the fourth corner 24 are arranged to protrude in a first direction. The first direction is the extension direction of the side edges of the first battery cell 1 and the second battery cell 2. Each of the above-mentioned side edges is an edge located on the side edge of the corresponding battery cell.

[0051] The edge of the above-mentioned soft package battery outer package is the sealing part of the soft package battery, for example, the edge of the aluminum plastic film package, which seals the inside and outside of the battery to isolate them from each other.

[0052] Preferably, the side of the second battery cell 2 close to the first battery cell 1 is free of the edge structure.

[0053] In the embodiment, the side of the second battery cell 2 close to the first battery cell 1 is free of the edge structure, that is, the side of the second battery cell 2 close to the first battery cell 1 is not provided with the edge structure, so that the second end edge 21 of the second battery cell is not formed with a protruding corner at the end close to the first battery cell 1 after being folded, and the end of the second end edge 21 can be smoothly folded to form the second corner 22 with a notch structure.

[0054] In actual implementation, the free end of the second corner 22 is located between the main part of the second end edge 21 and the body of the second battery cell 2, or the free end of the second corner 22 is located on the side of the main part of the second end edge 21 away from the body of the second battery cell 2.

[0055] That is, the second corner 22 can be folded inward or outward during manufacturing, wherein, as shown in Figure 14 the inward folding means folding one corner of one end of the second end edge 21 towards the body of the second battery cell 2, so that the free end of the second corner 22 is located between the main part of the second end edge 21 and the body of the second battery cell 2. The outward folding means folding one corner of one end of the second end edge 21 towards the direction away from the body of the second battery cell 2, so that the free end of the second corner 22 is located on the side of the main part of the second end edge 21 away from the body of the second battery cell 2.

[0056] As shown in Figures 9 to 11As shown, the battery of the embodiment includes a third battery cell 4, the outer package of the third battery cell 4 has a third end edge 41, the third end edge 41 is folded towards the body of the third battery cell 4, one end of the third end edge 41 is provided with a fifth corner 42, the fifth corner 42 is a notch structure, wherein: the first battery cell 1 includes a second side edge 14, the first side edge 11 and the second side edge 14 are respectively arranged on the opposite sides of the body part of the first battery cell 1, the second side edge 14 is folded towards the body of the first battery cell 1, the intersection of the second side edge 14 and the first end edge 12 forms a third corner 15, the third corner 15 is arranged protruding from the body of the first battery cell 1, and the third corner 15 is inlaid with the fifth corner 42; or, the second battery cell 2 includes a third side edge 23, the third side edge 23 is located on the side of the body of the second battery cell 2 away from the first battery cell 1, the third side edge 23 is folded towards the body of the second battery cell 2, the intersection of the third side edge 23 and the second end edge 21 forms a fourth corner 24, the fourth corner 24 is arranged protruding from the body of the second battery cell 2, and the fourth corner 24 is inlaid with the fifth corner 42.

[0057] By analogy, by continuously arranging the corner in the protruding structure and the corner in the recessed structure between the two adjacent battery cells, and inlaidly arranging the two corners, the corners of the two adjacent battery cells can be compactly arranged, thereby effectively reducing the protruding height of the corner position, facilitating the reduction of the occupation of space, and facilitating the reduction of the interference with other parts, for example, the interference of the corner protrusion with the installation of the protection plate can be reduced, and the installation of the protection plate can be smoothly realized without setting the avoiding groove structure on the protection plate. In actual implementation, the third battery cell 4 can be set to one or multiple, when the third battery cell 4 is set to multiple, only the corner in the protruding structure and the corner in the recessed structure between the two adjacent battery cells need to be arranged according to the above rules, so that the battery structure can be orderly expanded until the use demand of the battery cell is met.

[0058] The battery of the embodiment includes an injection glue structure 5, at least part of the injection glue structure 5 is filled between the protection plate 3 and the battery cell structure, wherein the battery cell structure is the structure composed of the first battery cell 1 and the second battery cell 2.

[0059] By setting the injection glue structure 5 to fill the gap between the protection plate 3 and the battery cell, not only the mechanical structure strength of the battery can be improved, but also the insulation performance, the heat dissipation performance, the sealing performance, the oxidation resistance and the like are beneficial, and the safety, the stability and the durability of the battery can be improved.

[0060] As shown in the drawings, Figure 12 and Figure 13As shown, in one preferred embodiment, the glue injection structure 5 comprises: a main body part 51, the extending direction of the main body part 51 is consistent with the extending direction of the protection plate 3, and the main body part 51 fills at least part of the gap between the protection plate 3 and the battery cell structure; and an extending part 52, which is connected with the main body part 51 and fills at least part of the gap between the first battery cell 1 and the second battery cell 2.

[0061] In the embodiment, the glue injection structure 5 is designed to comprise the main body part 51 and the extending part 52, the main body part fills at least part of the gap between the protection plate 3 and the battery cell structure, and the extending part 52 can fill the gap between the first battery cell 1 and the second battery cell 2, which can improve the reliability of the overall structure and ensure the flatness of the upper and lower surfaces of the battery without the existence of the rounded corner depression between the first battery cell 1 and the second battery cell 2.

[0062] The protection plate 3 is provided with a connecting part, and the first tab 10 and / or the second tab 20 are electrically connected with the connecting part, wherein: the connecting part is arranged on the side of the protection plate 3 close to the first battery cell 1 and the second battery cell 2; or, as shown, the connecting part is arranged on the side of the protection plate 3 away from the first battery cell 1 and the second battery cell 2. Figure 15

[0063] In actual implementation, various electrical components can be arranged on the surface of the protection plate 3, which can be arranged on the side of the protection plate 3 close to the first battery cell 1 and the second battery cell 2 or on the side of the protection plate 3 away from the first battery cell 1 and the second battery cell 2 according to actual needs.

[0064] In one preferred embodiment, the area between the protection plate 3 and the first corner 13 and the second corner 22 is provided with a void area, and no electrical components are arranged in the void area.

[0065] In actual implementation, the protruding direction of the first corner 13 is consistent with the extending direction of the first end sealing edge 12; or, the protruding direction of the first corner 13 forms a preset angle with the extending direction of the first end sealing edge 12, wherein, along the extending direction of the first side sealing edge 11, the protruding height of the first corner 13 is not more than 2 mm.

[0066] That is, in actual implementation, the first corner 13 does not necessarily fold to the extent of being parallel to the end surface of the battery cell, but can be folded at a certain angle, so that the fitting effect of the first corner 13 and the second corner 22 does not necessarily need to be perfect, and partial fitting can also play a role in reducing the protruding height of the corner. Figure 16

[0067] In addition, the embodiment of the present application also provides an electronic device, as shown in Figure 17 ​​As shown, the electronic device comprises: a device body 100, a battery compartment is arranged on the device body 100; a battery 200, the battery 200 is installed in the battery compartment, and the battery 200 is the battery described above.

[0068] In a preferred embodiment, the second cell 2 of the battery 200 comprises a fourth end sealing edge 25, the fourth end sealing edge 25 and the second end sealing edge 21 are respectively arranged on opposite sides of the second cell 2, the fourth end sealing edge 25 is folded towards the body of the second cell 2, and a sixth folding corner 26 is formed at the intersection of the fourth end sealing edge 25 and the third side sealing edge 23; wherein the device body 100 is provided with a avoiding slot 101, the avoiding slot 101 is communicated with the battery compartment, and at least part of the sixth folding corner 26 is located in the avoiding slot 101. By arranging the avoiding slot 101, the sixth folding corner 26 can be accommodated, so that the space utilization in the electronic device is more compact.

[0069] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0070] The battery of the embodiment of the present application comprises a first cell 1 and a second cell 2, the outer package of the first cell 1 has a first side sealing edge 11 and a first end sealing edge 12 arranged adjacent to each other, both are folded to be attached to the body of the first cell 1, and the intersection of the two is folded to form a first folding corner 13 in a convex manner. The outer package of the second cell 2 has a second end sealing edge 21, and a second folding corner 22 in a notch form is arranged at one end of the second end sealing edge 21. By arranging the two folding corners adjacent to each other of the first cell 1 and the second cell 2 as a convex structure and a notch structure respectively, the cooperation of the two can be realized through the fitting of the convex structure and the notch structure, so that the folding corners will not be stacked at the intersection of the first cell 1 and the second cell 2, which is beneficial to better control the convex height of the folding corners at the intersection of the first cell 1 and the second cell 2, thereby effectively avoiding the interference of the convex folding corners with other components, facilitating the assembly operation of the battery, and solving the technical problem that in the related art, the interference of the convex folding corners of the sealing edges at the intersection of the adjacent cells with other components causes difficulty in assembling the battery.

[0071] For purposes of the description hereinafter, the orientations in the figures will be described as shown. It is to be understood that the orientations depicted in the figures are exemplary and that the exemplary embodiments described herein can assume various alternative orientations, except where otherwise indicated. The spatially relative terms "front," "rear," "under," "below," "lower," "upper," "over," "top," "side" and derivative thereof (e.g., "vertical," "horizontal" and "transverse") can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0072] It is to be understood that the terms so used are merely for describing certain example embodiments and do not intend to limit the scope of the example embodiments according to the present application. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0073] It is to be understood that the terms so used are merely for describing certain example embodiments and do not intend to limit the scope of the example embodiments according to the present application. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0074] The specific embodiments described herein have many advantages resulting from the particular combination of structures and methods used in the embodiments. Of course, various modifications and changes can be made to the embodiments described herein without departing from the spirit and scope of the application. Accordingly, the specification is to be regarded in an illustrative rather than a restrictive sense, as it is intended to cover all such changes and modifications that fall within the scope of the application.

Claims

1. A battery, characterized in that, include: The first battery cell (1) has an outer packaging with a first side seal (11) and a first end seal (12) arranged adjacent to each other. The first side seal (11) and the first end seal (12) are both folded toward the body of the first battery cell (1). The junction of the first side seal (11) and the first end seal (12) forms a first angle (13). The second battery cell (2) is arranged side by side with the first battery cell (1). The outer packaging of the second battery cell (2) has a second end seal (21). The second end seal (21) is folded toward the body of the second battery cell (2). One end of the second end seal (21) is provided with a second bend (22). Wherein, the first bend (13) forms a protruding structure, the second bend (22) forms a notch structure, and at least part of the protruding structure is embedded in the notch structure; The free end of the second bend (22) is located between the main body of the second end seal (21) and the body of the second cell (2); or, the free end of the second bend (22) is located on the side of the main body of the second end seal (21) away from the body of the second cell (2).

2. The battery according to claim 1, characterized in that, The battery includes: The protection plate (3) is electrically connected to the first tab (10) of the first battery cell (1) and electrically connected to the second tab (20) of the second battery cell (2). The protection plate (3) is installed at the first end of the first battery cell (1) and the first end of the second battery cell (2). The first end seal (12) is provided at the first end of the first battery cell (1) and the second end seal (21) is provided at the first end of the second battery cell (2).

3. The battery according to claim 2, characterized in that, The first battery cell (1) includes a second side seal (14). The first side seal (11) and the second side seal (14) are respectively disposed on opposite sides of the body of the first battery cell (1). The second side seal (14) is folded toward the body of the first battery cell (1). A third angle (15) is formed at the junction of the second side seal (14) and the first end seal (12). The third angle (15) protrudes out of the body of the first battery cell (1). At least a portion of the third angle (15) is located on the first side of the protection plate (3) along the length direction of the protection plate (3).

4. The battery according to claim 3, characterized in that, The second battery cell (2) includes a third side seal (23), which is located on the side of the second battery cell (2) away from the first battery cell (1). The third side seal (23) is folded toward the body of the second battery cell (2). A fourth angle (24) is formed at the junction of the third side seal (23) and the second end seal (21). The fourth angle (24) protrudes from the body of the second battery cell (2). At least a portion of the fourth angle (24) is located on the second side of the protection plate (3) along the length direction of the protection plate (3). The first side and the second side of the protection plate (3) are opposite sides of the protection plate (3).

5. The battery according to claim 1, characterized in that, The side of the second cell (2) closest to the first cell (1) has no sealing structure.

6. The battery according to claim 1 or 2, characterized in that, The battery includes a third cell (4), the outer packaging of the third cell (4) has a third end seal (41), the third end seal (41) is folded toward the body of the third cell (4), one end of the third end seal (41) is provided with a fifth fold (42), the fifth fold (42) is a notch structure, wherein: The first battery cell (1) includes a second side seal (14). The first side seal (11) and the second side seal (14) are respectively disposed on opposite sides of the body of the first battery cell (1). The second side seal (14) is folded toward the body of the first battery cell (1). A third angle (15) is formed at the junction of the second side seal (14) and the first end seal (12). The third angle (15) protrudes from the body of the first battery cell (1). The third angle (15) is fitted with the fifth angle (42); or, The second battery cell (2) includes a third side seal (23), which is located on the side of the second battery cell (2) away from the first battery cell (1). The third side seal (23) is folded toward the body of the second battery cell (2). The junction of the third side seal (23) and the second end seal (21) forms a fourth angle (24). The fourth angle (24) protrudes from the body of the second battery cell (2). The fourth angle (24) and the fifth angle (42) are fitted together.

7. The battery according to any one of claims 2 to 4, characterized in that, The battery includes a glue injection structure (5), at least a portion of which is filled between the protection plate (3) and the cell structure, wherein the cell structure is a structure composed of the first cell (1) and the second cell (2).

8. The battery according to claim 7, characterized in that, The injection structure (5) includes: The main body (51) extends in the same direction as the protective plate (3), and fills at least part of the gap between the protective plate (3) and the cell structure. An extension (52) is connected to the main body (51) and fills at least part of the gap between the first cell (1) and the second cell (2).

9. The battery according to any one of claims 2 to 4, characterized in that, The protective plate (3) is provided with a connecting part, and the first electrode (10) and / or the second electrode (20) are electrically connected to the connecting part, wherein: The connecting portion is disposed on the side of the protection plate (3) close to the first battery cell (1) and the second battery cell (2); or, the connecting portion is disposed on the side of the protection plate (3) away from the first battery cell (1) and the second battery cell (2).

10. The battery according to any one of claims 1 to 5, characterized in that, The protruding direction of the first bend (13) is consistent with the extending direction of the first end seal (12); or, The protrusion direction of the first bend (13) forms a preset angle with the extension direction of the first end sealing edge (12), wherein the protrusion height of the first bend (13) along the extension direction of the first side sealing edge (11) does not exceed 2mm.

11. An electronic device, characterized in that, The electronic device includes: The device body (100) is provided with a battery compartment; A battery (200) is installed in the battery compartment, and the battery (200) is the battery according to any one of claims 1 to 10.

12. The electronic device according to claim 11, characterized in that, The second cell (2) of the battery (200) includes a fourth end seal (25), the fourth end seal (25) and the second end seal (21) are respectively disposed on opposite sides of the second cell (2), the fourth end seal (25) is folded toward the body of the second cell (2), and the junction of the fourth end seal (25) and the third side seal (23) forms a sixth angle (26). The device body (100) is provided with a clearance groove (101), which is connected to the battery compartment, and at least a portion of the sixth bend (26) is located in the clearance groove (101).

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