Double-cell battery and electronic equipment

Abstract

The utility model discloses a double-cell battery and electronic equipment, and belongs to the field of batteries. The double-cell battery comprises a first cell body and a second cell body, the first battery cell body and the second battery cell body are arranged in parallel, the first battery cell body is provided with a first side face and a second side face which are opposite in the second direction, the first side face faces the second battery cell body, and the second side face deviates from the second battery cell body; the second battery cell body is provided with a third side surface and a fourth side surface opposite to each other along the second direction; the third side faces the first side, and the fourth side deviates from the first side; the second side face is provided with a first side sealing edge, and the fourth side face is provided with a second side sealing edge. In the application, in the second direction, the space occupied by one first side sealing edge is reduced, and the space occupied by one second side sealing edge is also reduced, so that the energy density of the double-cell battery is improved on the premise that the overall size of the double-cell battery is not changed, and the capacity of the double-cell battery is further improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of batteries, and particularly relates to a double-cell battery and electronic equipment. BACKGROUND

[0002] With the development of science and technology, batteries are applied more and more widely, for example, widely used on various mobile terminals. Generally, double-cell batteries are used in mobile terminal devices. In the production process of double-cell batteries, two cells are mainly arranged side by side and then packaged. However, each cell in the double-cell battery has a top sealing edge and two side sealing edges. When the two cells are arranged side by side, the side sealing edges of the two cells form a partition in the direction in which the cells are arranged side by side, so that the effective space provided for the cells is reduced under the premise of keeping the overall size of the battery unchanged, the energy density of the battery is low, and the capacity of the battery is reduced. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the application is to provide a double-cell battery and electronic equipment, which at least solve the problem that the energy density of the battery is low, resulting in the capacity of the battery being reduced.

[0004] In a first aspect, the embodiment of the application provides a double-cell battery, the double-cell battery has a first direction and a second direction intersecting each other, and the double-cell battery comprises a first cell body and a second cell body.

[0005] The first cell body and the second cell body are arranged side by side, the first cell body has opposite first and second side surfaces along the second direction, the first side surface faces the second cell body, and the second side surface faces away from the second cell body; the second cell body has opposite third and fourth side surfaces along the second direction, the third side surface faces the first side surface, and the fourth side surface faces away from the first side surface.

[0006] The second side surface is provided with a first side sealing edge, and the fourth side surface is provided with a second side sealing edge.

[0007] Optionally, the first cell body has a first top surface for arranging a tab of the first cell body, and the second cell body has a second top surface for arranging a tab of the second cell body.

[0008] The first top surface is provided with a first top sealing edge, and the second top surface is provided with a second top sealing edge.

[0009] Optionally, the first cell body further has a first bottom surface opposite to the first top surface along the first direction, and the second cell body further has a second bottom surface opposite to the second top surface along the first direction.

[0010] The first bottom surface is provided with a first bottom sealing edge, and the second bottom surface is provided with a second bottom sealing edge.

[0011] Optionally, the first top sealing edge and the first side sealing edge are connected at the second side surface to form a first sealing structure, and the first bottom sealing edge and the first side sealing edge are connected at the second side surface to form a second sealing structure.

[0012] Optionally, the second top sealing edge and the second side sealing edge are connected at the fourth side surface to form a third sealing structure, and the second bottom sealing edge and the second side sealing edge are connected at the fourth side surface to form a fourth sealing structure.

[0013] Optionally, the dual-cell battery further comprises a protection plate.

[0014] The first top sealing edge is connected with a first tab, the second top sealing edge is connected with a second tab, the first tab and the second tab are electrically connected to the protection plate, and a projection of the protection plate in a direction from the first top sealing edge to the first top surface completely covers the first top surface and the second top surface.

[0015] Optionally, the dual-cell battery further comprises a plastic sealing member.

[0016] The plastic sealing member covers the protection plate, the first tab, the second tab, the first top sealing edge, and the second top sealing edge.

[0017] Optionally, the dual-cell battery comprises a wrapping sheet.

[0018] At least part of the first cell body and at least part of the second cell body are simultaneously wrapped by the wrapping sheet, so that the first cell body and the second cell body are in contact.

[0019] Optionally, the dual-cell battery further comprises a connecting sheet.

[0020] The connecting sheet is simultaneously attached to the first cell body and the second cell body, so that the first cell body and the second cell body are connected.

[0021] In a second aspect, the embodiments of the present application provide an electronic device, which comprises the dual-cell battery of any one of the first aspect.

[0022] In the embodiment of the present application, since the first cell body and the second cell body are arranged side by side, the first side of the first cell body faces the second cell body, the second side of the first cell body faces away from the second cell body, the third side of the second cell body faces the first side, and the fourth side faces away from the first side. Therefore, in the second direction, the first cell body and the second cell body are arranged side by side. Since the first side of the first cell body is provided with the first side edge, and the fourth side is provided with the second side edge, only one first side edge is provided on the first cell body, and only one second side edge is provided on the second cell body. Therefore, when the first cell body and the second cell body are arranged side by side, the first cell body can save a certain space in the second direction, and the second cell body can also save a certain space in the second direction. Thus, the size of the first cell body and the second cell body can be increased while the size of the double-cell battery remains unchanged, the energy density of the double-cell battery is improved, and the capacity of the double-cell battery is further improved. That is, in the embodiment of the present application, by reducing the number of first side edges on the first cell body and the number of second side edges on the second cell body in the first cell body and the second cell body arranged side by side, the space occupied by one first side edge and the space occupied by one second side edge are reduced in the second direction. Thus, while the overall size of the double-cell battery remains unchanged, the size saved by reducing the first side edge and the second side edge can be added to the first cell body or the second cell body, that is, the size of the first cell body or the second cell body can be increased, thereby improving the energy density of the double-cell battery and further improving the capacity of the double-cell battery. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 An exploded view of a double-cell battery provided by an embodiment of the present application is shown;

[0024] Figure 2 One of the schematic diagrams of a double-cell battery provided by an embodiment of the present application is shown;

[0025] Figure 3 One of the schematic diagrams of a first cell body provided by an embodiment of the present application is shown;

[0026] Figure 4 One of the schematic diagrams of a first cell body provided by an embodiment of the present application is shown;

[0027] Figure 5 One of the schematic diagrams of a double-cell battery provided by an embodiment of the present application is shown;

[0028] Figure 6 One of the schematic diagrams of a first cell body provided by an embodiment of the present application is shown;

[0029] Figure 7Fig. 4 shows a schematic view of a second cell body according to an embodiment of the present application;

[0030] Figure 8 Fig. 5 shows a schematic view of a double cell battery according to an embodiment of the present application;

[0031] Figure 9 Fig. 6 shows a schematic view of a first cell body and a second cell body according to an embodiment of the present application;

[0032] Figure 10 Fig. 7 shows a schematic view of a double cell battery according to an embodiment of the present application.

[0033] Reference signs:

[0034] 10: first cell body; 11: first top sealing edge; 12: first bottom sealing edge; 13: first side sealing edge; 101: first top surface; 102: first bottom surface; 103: first side surface; 104: second side surface; 111: first tab; 20: second cell body; 21: second top sealing edge; 22: second bottom sealing edge; 23: second side sealing edge; 201: second top surface; 202: second bottom surface; 203: third side surface; 204: fourth side surface; 211: second tab; 30: protection plate; 31: top sealing adhesive paper; 40: plastic sealing piece; 50: wrapping sheet; 60: connecting sheet; 100: first sealing structure; 200: second sealing structure. DETAILED DESCRIPTION

[0035] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the application, it should be noted that, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] As shown in Figures 1 to 10 The double-cell battery has intersecting first and second directions, and includes a first cell body 10 and a second cell body 20. The first cell body 10 is arranged side by side with the second cell body 20, and has opposite first and second side surfaces 103 and 104 along the second direction. The first side surface 103 faces the second cell body 20, and the second side surface 104 faces away from the second cell body 20. The second cell body 20 has opposite third and fourth side surfaces 203 and 204 along the second direction. The third side surface 203 faces the first side surface 103, and the fourth side surface 204 faces away from the first side surface 103. The second side surface 104 is provided with a first side sealing edge 13, and the fourth side surface 204 is provided with a second side sealing edge 23.

[0039] In the embodiment of the present application, since the first cell body 10 and the second cell body 20 are arranged side by side, the first side surface 103 of the first cell body 10 faces the second cell body 20, the second side surface 104 of the first cell body 10 faces away from the second cell body 20, the third side surface 203 of the second cell body 20 faces the first side surface 103, and the fourth side surface 204 faces away from the first side surface 103. Therefore, in the second direction, the first cell body 10 and the second cell body 20 are arranged side by side. Since the second side surface 104 is provided with the first side seal 13, and the fourth side surface 204 is provided with the second side seal 23, only one first side seal 13 is arranged on the first cell body 10, and only one second side seal 23 is arranged on the second cell body 20. Therefore, when the first cell body 10 and the second cell body 20 are arranged side by side, the first cell body 10 can save a certain space in the second direction, and the second cell body 20 can also save a certain space in the second direction. Thus, the size of the first cell body 10 and the second cell body 20 can be increased while the size of the double-cell battery remains unchanged, the energy density of the double-cell battery is improved, and the capacity of the double-cell battery is further improved. That is, in the embodiment of the present application, by reducing the number of first side seals 13 on the first cell body 10 and the number of second side seals 23 on the second cell body 20, the space occupied by one first side seal 13 and one second side seal 23 is reduced in the second direction. Thus, while the overall size of the double-cell battery remains unchanged, the size saved by reducing the first side seal 13 and the second side seal 23 can be added to the first cell body 10 or the second cell body 20, that is, the size of the first cell body 10 or the second cell body 20 can be increased, thereby improving the energy density of the double-cell battery and further improving the capacity of the double-cell battery.

[0040] In the related art, when packaging the cell body, the cell body is wrapped with an aluminum plastic film. Specifically, the cell body has a head portion, a tail portion, and a side portion. The cell body is placed on the aluminum plastic film, and then the aluminum plastic film is folded in the direction from the tail portion to the head portion of the cell body. Then, two side seals are formed on the opposite two side portions of the cell body, and the head portion of the cell body forms a top seal. That is, in the related art, the cell body has two opposite side seals. Therefore, when two cell bodies are packaged to form a double-cell battery, one side seal of one cell body faces one side seal of the other cell body, and the two cell bodies have four side seals in total. Therefore, in the direction in which the cell bodies are arranged side by side, the four side seals occupy a certain space, resulting in that the size of the cell body is small while the size of the double-cell battery remains unchanged, thereby the energy density of the double-cell battery is small, and the capacity of the double-cell battery is small.

[0041] In the embodiment of the present application, when the first battery body 10 is packaged, the first battery body 10 can be covered by the aluminum plastic film. Specifically, the first battery body 10 is placed on the aluminum plastic film, and then the aluminum plastic film is folded in the direction from the first side surface 103 to the second side surface 104 or in the direction from the second side surface 104 to the first side surface 103. In the embodiment of the present application, the aluminum plastic film is rotated by 90 degrees compared with the folding direction of the aluminum plastic film in the related art. Then, the first side edge 13 is formed on the first side surface 103 or the second side surface 104 of the battery body, the first top edge 11 is formed on the first top surface 101, and the first bottom edge 12 is formed on the first bottom surface 102. That is, in the embodiment of the present application, the first battery body 10 has only one first side edge 13, so that when the first battery body 10 and the second battery body 20 are arranged side by side, one size of the first side edge 13 is saved in the second direction, i.e., the direction in which the first battery body 10 and the second battery body 20 are arranged side by side, so that the size of the first battery body 10 or the second battery body 20 can be increased under the premise that the size of the double-battery battery remains unchanged, the energy density of the double-battery battery is improved, and the capacity of the double-battery battery is further improved.

[0042] Through such a setting, the surface of the first battery body 10 facing the second battery body 20 is not provided with the first side edge 13, and the surface of the second battery body 20 facing the first battery body 10 is not provided with the second side edge 23, so that the first side surface 103 can be in contact with the second side surface 104, and the first side surface 103 is not provided with the first side edge 13, and the third side surface 203 is not provided with the second side edge 23. Subsequently, when the double-battery battery is further packaged by the protection plate 30, the protection plate 30 does not need to be provided with a avoiding groove at the position where the first side surface 103 and the third side surface 203 are in contact, i.e., the protection plate 30 does not need to be slotted, so that the strength of the protection plate 30 can be improved.

[0043] In addition, in the related art, when the double-battery battery is packaged, the two battery bodies are arranged side by side, and the side edge of one battery body is in contact with the side edge of the other battery body. However, a protrusion is formed on the side edge at the position where the two side edges are in contact. Subsequently, when the double-battery battery is further packaged by the protection plate 30, the protection plate 30 needs to be provided with a avoiding groove at the position where the two side edges are in contact, i.e., the protection plate 30 needs to be slotted to avoid the protrusion. In the embodiment of the present application, the first side edge 13 is arranged on the second side surface 104, and the second side edge 23 is arranged on the fourth side surface 204, so that subsequently, when the double-battery battery is further packaged by the protection plate 30, the first side surface 103 and the third side surface 203 are not provided with the side edge and thus do not form the protrusion. Therefore, the protection plate 30 does not need to be provided with a avoiding groove at the position where the first side surface 103 and the third side surface 203 are in contact, i.e., the protection plate 30 does not need to be slotted, so that the strength of the protection plate 30 can be improved.

[0044] In addition, in some embodiments, the first cell body 10 has a first top surface 101 for setting the tab of the first cell body 10, and the second cell body 20 has a second top surface 201 for setting the tab of the second cell body 20; the first top surface 101 is provided with a first top sealing edge 11, and the second top surface 201 is provided with a second top sealing edge 21. Through such a setting, packaging can be realized on the first top surface 101 through the first top sealing edge 11, and packaging can also be realized on the second top surface 201 through the second top sealing edge 21, thereby facilitating subsequent packaging of the double-cell battery.

[0045] In addition, in some embodiments, the first cell body 10 also has a first bottom surface 102 opposite the first top surface 101 along the first direction, and the second cell body 20 also has a second bottom surface 202 opposite the second top surface 201 along the first direction; the first bottom surface 102 is provided with a first bottom sealing edge 12, and the second bottom surface 202 is provided with a second bottom sealing edge 22. Through such a setting, packaging can be realized on the first bottom surface 102 through the first bottom sealing edge 12, and packaging can also be realized on the second bottom surface 202 through the second bottom sealing edge 22, thereby facilitating subsequent packaging of the double-cell battery.

[0046] In addition, in some embodiments, the first top sealing edge 11 and the first side sealing edge 13 can be connected to form a first sealing structure 100 at the second side surface 104, and the first bottom sealing edge 12 and the first side sealing edge 13 can be connected to form a second sealing structure 200 at the second side surface 104.

[0047] Through such a setting, the first top sealing edge 11 can be bent lower, i.e., the first top sealing edge 11 can be made lower, and the first bottom sealing edge 12 can be bent lower, i.e., the first bottom sealing edge 12 can be made lower, so that in the subsequent packaging to form the double-cell battery, in the first direction, the first top sealing edge 11 can save a certain space, so that the size of the first cell body 10 can be increased under the premise that the size of the double-cell battery remains unchanged, so that the energy density of the double-cell battery is improved, and the capacity of the double-cell battery is improved. In addition, through such a setting, when the double-cell battery is subsequently packaged by the protection plate 30 to form the double-cell battery, the protection plate 30 can be placed in a direction parallel to the first top surface 101, i.e., the protection plate 30 can be placed vertically, and the protection plate 30 does not need to be slotted.

[0048] In addition, in some embodiments, the second top sealing edge 21 and the second side sealing edge 23 can be connected at the fourth side surface 204 to form a third sealing structure 300, and the second bottom sealing edge 22 and the second side sealing edge 23 can be connected at the fourth side surface 204 to form a fourth sealing structure 400. By such an arrangement, the second top sealing edge 21 can be bent lower, i.e., the second top sealing edge 21 can be made lower, and the second bottom sealing edge 22 can be bent lower, i.e., the second bottom sealing edge 22 can be made lower, so that in the first direction, the second top sealing edge 21 can save a certain space, so that the size of the second cell body 20 can be increased under the premise that the size of the double-cell battery remains unchanged, so that the energy density of the double-cell battery is improved, and thus the capacity of the double-cell battery is improved.

[0049] In addition, in the embodiments of the present application, as shown in Figure 2 In addition, in the embodiments of the present application, as shown in

[0050] In addition, in some embodiments, the double-cell battery can further include a protection plate 30; the first top sealing edge 11 is connected with a first tab 111, and the second top sealing edge 21 is connected with a second tab 211, and the first tab 111 and the second tab 211 are electrically connected to the protection plate 30, and a projection of the protection plate 30 in the direction from the first top sealing edge 11 to the first top surface 101 completely covers the first top surface 101 and the second top surface 201.

[0051] Since the first top sealing edge 11 is connected with the first tab 111, and the second top sealing edge 21 is connected with the second tab 211, and the first tab 111 and the second tab 211 are electrically connected to the protection plate 30, the protection plate 30 can protect the inside of the cell body through the first tab 111, and protect the inside of the cell body through the second tab 211. Since the projection of the protection plate 30 in the direction from the first top sealing edge 11 to the first top surface 101 completely covers the first top surface 101 and the second top surface 201, it is equivalent to that the protection plate 30 is not provided with a slot, and the strength of the protection plate 30 is higher, so that the service life of the protection plate 30 is prolonged, and thus the service life of the double-cell battery is prolonged.

[0052] In addition, in the embodiments of the present application, the double-cell battery can further include a top sealing adhesive paper 31, and the first top surface 101 and the second top surface 201 are both bonded with the top sealing adhesive paper 31, and the top sealing adhesive paper 31 avoids the first tab 111 and the second tab 211.

[0053] In addition, in some embodiments, the dual-cell battery can further include a plastic sealing piece 40; the plastic sealing piece 40 covers the protection plate 30, the first tab 111, the second tab 211, the first top sealing edge 11, and the second top sealing edge 21.

[0054] By arranging the plastic sealing piece 40, when the dual-cell battery is formed by packaging, the protection plate 30, the first tab 111, the second tab 211, the first top sealing edge 11, and the second top sealing edge 21 can be covered by the plastic sealing piece 40, so that the plastic sealing piece 40 seals these components to form the dual-cell battery. That is, by arranging the plastic sealing piece 40, the protection plate 30 and other components can be easily sealed to form the dual-cell battery. In addition, by arranging the plastic sealing piece 40, the stability of the dual-cell battery can be improved, the protection plate 30 and other components are protected by the plastic sealing piece 40, and the risk of the first top sealing edge 11 and the second top sealing edge 21 being broken open is reduced, thereby improving the mechanical reliability of the dual-cell battery.

[0055] It should be noted that the plastic sealing piece 40 can be plastic sealing glue.

[0056] In addition, in some embodiments, the dual-cell battery can include a wrapping sheet 50; at least part of the first cell body 10 and at least part of the second cell body 20 are simultaneously wrapped by the wrapping sheet 50, so that the first cell body 10 and the second cell body 20 are in contact.

[0057] Since at least part of the first cell body 10 and at least part of the second cell body 20 are simultaneously wrapped by the wrapping sheet 50, it is equivalent that the first cell body 10 and the second cell body 20 are in contact through the wrapping sheet 50, thereby forming a whole, and avoiding separation of the first cell body 10 and the second cell body 20. That is, by arranging the wrapping sheet 50, the first cell body 10 and the second cell body 20 can be in contact, which facilitates the formation of the dual-cell battery and avoids the separation of the first cell body 10 and the second cell body 20.

[0058] It should be noted that the wrapping sheet 50 can be a PET sheet, of course, the wrapping sheet 50 can also be other materials, and the embodiments of the present application are not limited thereto.

[0059] In addition, in some embodiments, the dual-cell battery can further include a connecting sheet 60; the connecting sheet 60 is simultaneously attached to the first cell body 10 and the second cell body 20, so as to connect the first cell body 10 and the second cell body 20.

[0060] Since the connecting sheet 60 is attached to the first battery body 10 and the second battery body 20 at the same time, the first battery body 10 is connected to the connecting sheet 60, and the second battery body 20 is connected to the connecting sheet 60, so that the connecting sheet 60 can connect the first battery body 10 and the second battery body 20, and further avoid the problem that the first battery body 10 and the second battery body 20 are easily separated. That is, by arranging the connecting sheet 60, the first battery body 10 and the second battery body 20 can be further prevented from being separated, and the mechanical stability of the double-battery battery can be improved.

[0061] It should be noted that the connecting sheet 60 can be a glue paper, of course, the connecting sheet 60 can also be other sheet structures with adhesive function, and the embodiments of the present application are not limited thereto.

[0062] In the embodiments of the present application, since the first battery body 10 and the second battery body 20 are arranged side by side, the first side 103 of the first battery body 10 faces the second battery body 20, the second side 104 of the first battery body 10 faces away from the second battery body 20, the third side 203 of the second battery body 20 faces the first side 103, and the fourth side 204 faces away from the first side 103, so that the first battery body 10 and the second battery body 20 are arranged side by side in the second direction. Since the second side 104 is provided with the first side seal 13, and the fourth side 204 is provided with the second side seal 23, only one first side seal 13 is arranged on the first battery body 10, and only one second side seal 23 is arranged on the second battery body 20, so that when the first battery body 10 and the second battery body 20 are arranged side by side, the first battery body 10 can save a certain space in the second direction, and the second battery body 10 can also save a certain space in the second direction, so that the size of the first battery body 10 and the second battery body 20 can be increased under the premise that the size of the double-battery battery is unchanged, the energy density of the double-battery battery is improved, and the capacity of the double-battery battery is further improved. That is, in the embodiments of the present application, by reducing the number of first side seals 13 on the first battery body 10 and the number of second side seals 23 on the second battery body 20 when the first battery body 10 and the second battery body 20 are arranged side by side, the space occupied by one first side seal 13 and the space occupied by one second side seal 23 are reduced in the second direction, so that under the premise that the overall size of the double-battery battery is unchanged, the size saved by reducing the first side seal 13 and the second side seal 23 can be added to the first battery body 10 or the second battery body 20, that is, the size of the first battery body 10 or the second battery body 20 can be increased, so that the energy density of the double-battery battery is improved, and the capacity of the double-battery battery is further improved.

[0063] The electronic device provided in the embodiments of the present application includes the double-cell battery in any of the above embodiments.

[0064] It should be noted that in the embodiments of the present application, the electronic device includes but is not limited to a controller, a smart device, a terminal product, and the like. The smart device is, for example, a smart phone, a smart television, a smart speaker, a smart robot, a VR device, an AR device, an XR device, and the like. The terminal product includes a personal computer, a tablet computer, and the like.

[0065] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A dual cell battery, characterized by, The double-cell battery has a first direction and a second direction intersecting with each other, and comprises a first cell body and a second cell body; The first cell body and the second cell body are arranged side by side, the first cell body has opposite first and second side surfaces along the second direction, the first side surface faces the second cell body, and the second side surface faces away from the second cell body; the second cell body has opposite third and fourth side surfaces along the second direction, the third side surface faces the first side surface, and the fourth side surface faces away from the first side surface; The second side surface is provided with a first side sealing edge, and the fourth side surface is provided with a second side sealing edge.

2. The dual cell battery of claim 1, wherein, The first cell body has a first top surface for arranging a tab of the first cell body, and the second cell body has a second top surface for arranging a tab of the second cell body; The first top surface is provided with a first top sealing edge, and the second top surface is provided with a second top sealing edge.

3. The dual cell battery of claim 2, wherein, The first cell body also has a first bottom surface opposite to the first top surface along the first direction, and the second cell body also has a second bottom surface opposite to the second top surface along the first direction; The first bottom surface is provided with a first bottom sealing edge, and the second bottom surface is provided with a second bottom sealing edge.

4. The dual cell battery of claim 3, wherein, The first top sealing edge and the first side sealing edge are connected to form a first sealing structure at the second side surface, and the first bottom sealing edge and the first side sealing edge are connected to form a second sealing structure at the second side surface.

5. The dual cell battery of claim 3, wherein, The second top sealing edge and the second side sealing edge are connected to form a third sealing structure at the fourth side surface, and the second bottom sealing edge and the second side sealing edge are connected to form a fourth sealing structure at the fourth side surface.

6. The dual cell battery of claim 3, wherein, The double-cell battery further comprises a protection plate; The first top sealing edge is connected with a first tab, the second top sealing edge is connected with a second tab, the first and second tabs are electrically connected to the protection plate, and a projection of the protection plate in a direction from the first top sealing edge to the first top surface completely covers the first and second top surfaces.

7. The dual cell battery of claim 6, wherein, The double-cell battery further comprises a plastic sealing member; The plastic sealing member covers the protection plate, the first and second tabs, the first and second top sealing edges.

8. The dual cell battery of claim 1, wherein, The double-cell battery comprises a wrapping sheet; At least part of the first cell body and at least part of the second cell body are simultaneously wrapped by the wrapping sheet, so that the first cell body and the second cell body are in contact.

9. The dual cell battery of claim 8, wherein, The double-cell battery further comprises a connecting sheet; The connecting sheet is attached to the first cell body and the second cell body simultaneously, so that the first cell body and the second cell body are connected.

10. An electronic device, comprising: The electronic device comprises the double-cell battery according to any one of claims 1-9.

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