Battery and power consuming device

Abstract

The application provides a battery and a power consumption device. The battery comprises: a battery module, comprising a first battery cell and a second battery cell arranged in series along a first direction, a first electrode output part of the first battery cell and a second electrode output part of the second battery cell being electrically connected by welding, the first direction being a length direction of the battery; and a support arranged between the first battery cell and the second battery cell, the support being provided with a first accommodating space, the first accommodating space penetrating through the support in the first direction, and the first accommodating space being used for accommodating the first electrode output part and the second electrode output part. The battery and the power consumption device can reduce the risk of tearing at the connection part of the battery cell.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery and an electrical device. Background Technology

[0002] To increase battery capacity, multiple battery cells connected in series are typically housed within a robust casing to form a battery. Since the reliability of a battery's operation directly impacts the safety of the entire battery and even the electrical device being used, battery design places high demands on the stability of its electrical connections. Summary of the Invention

[0003] This application provides a battery and an electrical device that can reduce the risk of tearing at the connection points of individual battery cells, thereby improving the electrical connection stability of the battery.

[0004] In a first aspect, a battery is provided, comprising: a battery module including a first battery cell and a second battery cell arranged in series along a first direction, wherein a first electrode output portion of the first battery cell and a second electrode output portion of the second battery cell are electrically connected by welding, the first direction being the length direction of the battery; and a bracket disposed between the first battery cell and the second battery cell, the bracket having a first receiving space extending through the bracket in the first direction, the first receiving space being used to receive the first electrode output portion and the second electrode output portion.

[0005] In this embodiment, a bracket is provided between the first battery cell and the second battery cell connected in series, and the connection between the first battery cell and the second battery cell is placed in the first receiving space of the bracket. This can better fix the connection of the battery cells, prevent the connection from shaking, thereby reducing the risk of tearing at the connection and improving the electrical connection stability of the battery.

[0006] In one possible implementation, the bracket includes: a bracket body; a first fixing member stacked with the bracket body in a third direction, the third direction being the thickness direction of the battery; the first fixing member being fixedly connected to the bracket body; and a first electrode output portion and a second electrode output portion being disposed in a first receiving space formed between the bracket body and the first fixing member.

[0007] In this embodiment, by stacking the support body and the first fixing member in the third direction, a first accommodating space can be formed to restrict the displacement of the first electrode output part and the second electrode output part in the third direction, thereby reducing the risk of tearing at the connection between the first electrode output part and the second electrode output part.

[0008] In one possible implementation, the bracket body includes a first end and a second end in a second direction, the first fastener being fixedly connected to the first end and the first fastener forming an opening with the second end.

[0009] In this embodiment, the first fixing member is fixedly connected to the first end of the bracket body in the second direction, so that when the battery module is assembled with the bracket, it can be inserted into the first receiving space through the opening between the first fixing member and the second end of the bracket body in the second direction, which can reduce the assembly complexity of the battery module and the bracket. In addition, fixing the first fixing member to the first end of the bracket body can also improve the energy density of the battery.

[0010] In one possible implementation, the first fastener includes a first wall and two first side walls, the first wall being disposed opposite to the bracket body, the two first side walls extending from both ends of the first wall toward the bracket body in a first direction, the two first side walls and the bracket body forming the first receiving space in the third direction.

[0011] In this embodiment, the first fixing member has a cavity, which can reduce the weight of the bracket, thereby reducing the weight of the battery.

[0012] In one possible implementation, a first reinforcing rib extending from the first wall toward the support body is provided between the two first sidewalls.

[0013] In this embodiment, a first reinforcing rib is provided on the first wall to enhance the rigidity of the first wall.

[0014] In this third direction, the first reinforcing rib is closer to the first electrode output portion and the second electrode output portion relative to the two first sidewalls.

[0015] In this embodiment, in the third direction, the first reinforcing rib is positioned closer to the first electrode output portion and the second electrode output portion relative to the two first sidewalls, so as to facilitate support of the first electrode output portion and the second electrode output portion and prevent the first electrode output portion and the second electrode output portion from shaking.

[0016] In one possible implementation, a plurality of the first reinforcing ribs are spaced apart along the first direction or the second direction; or, a plurality of the first reinforcing ribs are intersected along the first direction and the second direction.

[0017] In this embodiment, multiple first reinforcing ribs are arranged along a first direction and a second direction to strengthen the fixation of the first electrode output portion and the second electrode output portion.

[0018] In one possible implementation, the first wall is provided with a first adhesive flow hole, which is used to introduce structural adhesive into the space between the first electrode output section and the second electrode output section and the bracket, and the first electrode output section and the second electrode output section are fixedly connected to the bracket by structural adhesive.

[0019] In this embodiment, structural adhesive is used to fix the first electrode output section and the second electrode output section to the bracket, which can enhance the rigidity between the battery module and the bracket, thereby preventing the first electrode output section and the second electrode output section from shaking in the first receiving space of the bracket after electrical connection, and reducing the risk of tearing.

[0020] In one possible implementation, the battery module further includes: a third battery cell and a fourth battery cell connected in series along the first direction, the third electrode output portion of the third battery cell and the fourth electrode output portion of the fourth battery cell being electrically connected by welding, the third battery cell and the first battery cell being stacked along the third direction, and the fourth battery cell and the second battery cell being stacked along the third direction; the bracket further includes: a second fixing member, stacked with the bracket body in the third direction, the bracket body being disposed between the first fixing member and the second fixing member; wherein, the second fixing member is fixedly connected to the bracket body, and the third electrode output portion and the fourth electrode output portion are disposed in a second receiving space between the bracket body and the second fixing member.

[0021] In this embodiment, a bracket is used to fix the connection part of two pairs of adjacent battery cells arranged along two rows, which can strengthen the overall strength of the two adjacent rows of battery cells and improve the energy density of the battery.

[0022] In one possible implementation, in the third direction, the second fastener and the first fastener are symmetrically arranged relative to the bracket body.

[0023] In this embodiment, the second fixing member and the first fixing member are symmetrically arranged relative to the bracket body, which can reduce the manufacturing difficulty of the bracket.

[0024] In one possible implementation, the support body has a cavity.

[0025] In this embodiment, the support body is configured with a cavity structure, which can reduce the weight of the support and thus the weight of the battery.

[0026] In one possible implementation, at least one wall of the cavity is provided with a second injection port for introducing structural adhesive into the space between at least one of the first, second, third, and fourth battery cells and the support, wherein the at least one battery cell is fixedly connected to the support by structural adhesive.

[0027] In this embodiment, structural adhesive is used to fix each battery cell to the bracket, which can enhance the rigidity between the battery module and the bracket, prevent relative displacement between the battery module and the bracket, and reduce damage to the battery cells.

[0028] In one possible implementation, the wall of the support body for supporting the first electrode output section and the second electrode output section is provided with a first receiving groove, the first receiving groove accommodating a first sampling terminal, the first sampling terminal being used to collect parameters of the first battery cell and / or the second battery cell.

[0029] In this embodiment, by providing a first receiving groove on the wall of the support body for supporting the first electrode output section and the second electrode output section to accommodate the first sampling terminal, real-time monitoring of the first battery cell and / or the second battery cell can be realized, thereby improving battery safety.

[0030] In one possible implementation, the first receiving groove also contains structural adhesive, and the first sampling terminal is fixedly connected to the bracket by the structural adhesive.

[0031] In this embodiment, the first sampling terminal and the bracket are fixedly connected by structural adhesive, which can prevent the first sampling terminal from shaking and thus improve the sampling accuracy of the first sampling terminal.

[0032] In one possible implementation, in the second direction, the size of the bracket is larger than the size of the battery module; and / or in the third direction, the size of the bracket is larger than the size of the battery module.

[0033] In this embodiment, the bracket is set to be larger than the battery module size in the third direction and in the second direction. This allows the bracket to contact the casing first when the battery is subjected to vibration and impact, thus providing a buffer and reducing damage to individual battery cells.

[0034] In one possible implementation, the battery further includes a housing for accommodating the battery module and the support.

[0035] In this embodiment, placing the battery module and bracket inside the housing can reduce the risk of individual battery cells being damaged when the battery is subjected to vibration and impact.

[0036] In one possible implementation, the housing has an opening along the first direction, and the battery further includes an end cap that covers the opening to encapsulate the battery module and the bracket within the housing; the end cap is provided with a positive electrode terminal and a negative electrode terminal, the positive electrode terminal being electrically connected to the positive output portion of the battery module, and the negative electrode terminal being electrically connected to the negative output portion of the battery module.

[0037] In a second aspect, an electrical device is provided, comprising: a battery as described in the first aspect and any possible implementation thereof, the battery being used to provide electrical energy to the electrical device. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a vehicle disclosed in an embodiment of this application.

[0040] Figure 2 This is a three-dimensional schematic diagram of a battery disclosed in an embodiment of this application.

[0041] Figure 3 This is a three-dimensional schematic diagram of another battery disclosed in the embodiments of this application.

[0042] Figure 4 This is a schematic assembly diagram of the battery module and bracket disclosed in the embodiments of this application.

[0043] Figure 5 This is a three-dimensional schematic diagram of the bracket disclosed in the embodiments of this application.

[0044] Figure 6 yes Figure 5 The front view of the bracket shown.

[0045] Figure 7 yes Figure 5 An enlarged schematic diagram of part A in the middle.

[0046] Figure 8 yes Figure 5 The right view of the bracket shown.

[0047] Figure 9 yes Figure 3 A partial front view of the battery shown.

[0048] Figure 10 yes Figure 2 or Figure 3A partial top view of the battery shown.

[0049] Figure 11 This is a schematic exploded view of a battery disclosed in this application.

[0050] The accompanying drawings are not drawn to scale. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, rather than to describe a specific order or hierarchy.

[0053] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0055] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0056] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0057] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to these. Battery cells are generally divided into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these.

[0058] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrodes. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector, and the uncoated current collector protrudes from the coated current collector, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector, and the uncoated current collector protrudes from the coated current collector, serving as the negative electrode tab. The negative current collector can be made of copper, and the negative active material can be carbon or silicon, etc. To ensure that a large current can be carried without melting, multiple positive electrode tabs are stacked together, and multiple negative electrode tabs are stacked together. The diaphragm can be made of PP or PE, etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0059] To increase battery capacity, multiple battery cells connected in series are typically housed within a robust casing to form a battery. During use, the connections between the battery cells can wobble, posing a risk of tearing.

[0060] In view of this, the present application provides a battery in which a bracket is provided between two battery cells connected in series, and the connection part of the two battery cells is placed in the receiving space of the bracket. This can better fix the connection part of the battery cells, prevent the connection part from shaking, thereby reducing the risk of tearing and improving the electrical connection stability of the battery.

[0061] The technical solutions described in the embodiments of this application are applicable to various battery-powered devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, electric vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0062] It should be understood that the technical solutions described in the embodiments of this application are not limited to the electrical devices described above, but can also be applied to all devices that use batteries. However, for the sake of brevity, the following embodiments are all illustrated using electric vehicles as examples.

[0063] For example, such as Figure 1 The diagram shown is a structural schematic of a vehicle 1 according to one embodiment of this application. Vehicle 1 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A motor 80, a controller 60, and a battery 100 can be installed inside vehicle 1. The controller 60 controls the battery 100 to supply power to the motor 80. For example, the battery 100 can be installed at the bottom, front, or rear of vehicle 1. The battery 100 can be used to power vehicle 1. For example, the battery 100 can serve as the operating power source for vehicle 1, for example, for the electrical system of vehicle 1, such as for the power requirements of vehicle 1's starting, navigation, and operation. In another embodiment of this application, the battery 100 can not only serve as the operating power source for vehicle 1, but also as the driving power source for vehicle 1, replacing or partially replacing gasoline or natural gas to provide driving power for vehicle 1.

[0064] Figure 2 A schematic perspective view of a battery 100 according to an embodiment of this application is shown. Figure 2 As shown, the battery 100 includes a battery module 110, which includes a first battery cell 111 and a second battery cell 112 connected in series along a first direction X. The first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 111 are electrically connected by welding. The first direction X is the length direction of the battery 100. The battery 100 also includes a bracket 120, which is disposed between the first battery cell 111 and the second battery cell 112. The bracket 120 is provided with a first receiving space 121, which passes through the bracket 120 in the first direction X. The first receiving space 121 is used to receive the first electrode output portion 111a and the second electrode output portion 112a.

[0065] For ease of description, we will first define the various directions here. For example... Figure 2 As shown, the first direction X is the length direction of the battery 100, the second direction Y is the width direction of the battery 100, and the third direction Z is the thickness direction of the battery 100.

[0066] The electrode output section in this application may refer to the part of the electrode tab that extends out of the outer packaging of the battery cell as described above, or it may be understood as an electrical connection piece that is electrically connected to the electrode tab outside the outer packaging of the battery cell. This application does not limit this aspect.

[0067] The battery module 110 in this embodiment may include multiple battery cells connected in series, meaning that the positive output of one battery cell is connected to the negative output of an adjacent battery cell. The multiple battery cells can be arranged as follows: Figure 2 As shown, the cells are arranged in a single row along the first direction X. Optionally, multiple battery cells can also be arranged in multiple rows along the first direction X.

[0068] In this embodiment, the first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 112 are electrically connected by welding. This connection may include ultrasonic welding or laser welding. Optionally, the first electrode output portion 111a and the second electrode output portion 112a can be directly welded or indirectly welded through a connector. Since the first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 112 are welded before the bracket 120 is assembled, the bracket 120 must be provided with a first receiving space 121 penetrating the bracket 120 in a first direction. This allows the connected first electrode output portion 111a and the second electrode output portion 112a to pass through the first receiving space 121 along the second direction Y, and for the first receiving space 121 to accommodate the first electrode output portion 111a and the second electrode output portion 112a.

[0069] Therefore, in this embodiment, a bracket 120 is provided between the first battery cell 111 and the second battery cell 112 connected in series, and the connection portion of the first battery cell 111 and the second battery cell 112 is located in the first receiving space 121 of the bracket 120. This can better fix the connection of the battery cells, prevent the connection from shaking, thereby reducing the risk of tearing at the connection and improving the electrical connection stability of the battery 100. In addition, the presence of the bracket 120 can increase the overall rigidity of the battery module 110, thereby facilitating the assembly of the battery module 110 into the casing.

[0070] Although the embodiments of this application are described using the connection between the first battery cell 111 and the second battery cell 112 as an example, when two or more battery cells are arranged in a row, the battery 100 of this application may include multiple brackets. The structure and function of each bracket can be referred to the bracket 120' between the first battery cell 111 and the second battery cell 112. For the sake of brevity, this article will not describe the brackets between other battery cells in detail.

[0071] Figure 3 Another schematic perspective view of the battery 100 according to an embodiment of this application is shown. Figure 3 As shown, the battery 100 includes a battery module 110. The battery module 110 includes a first battery cell 111 and a second battery cell 112 connected in series along a first direction X. The battery module 110 also includes a third battery cell 113 and a fourth battery cell 114 connected in series along the first direction X. The first battery cell 111 and the third battery cell 113 are stacked along a third direction, and the second battery cell 112 and the fourth battery cell 114 are stacked along a third direction. The first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 112 are electrically connected by welding. The third electrode output portion 113a of the third battery cell 113 and the fourth electrode output portion 114a of the fourth battery cell 114 are electrically connected by welding. The battery 100 also includes a bracket 120, which has a first accommodating space 121 and a second accommodating space 122. The first accommodating space 121 and the second accommodating space 122 are spaced apart along a third direction Z. The first accommodating space 121 is used to accommodate the first electrode output section 111a and the second electrode output section 112a, and the second accommodating space 122 is used to accommodate the third electrode output section 113a and the fourth electrode output section 114a.

[0072] In this embodiment, a bracket 120 is used to fix the connection part of two pairs of adjacent battery cells arranged along two rows, which can strengthen the overall strength of the two adjacent rows of battery cells and improve the energy density of the battery 100.

[0073] Optionally, the first receiving space 121 passes through the bracket 120 in the first direction X, and the second receiving space 122 also passes through the bracket 120 in the first direction X.

[0074] It should be noted that when the battery module 110 in this application includes multiple battery cells arranged in two or more rows along the first direction X, the bracket 120 can be provided with two or more accommodating spaces at intervals along the third direction Z, and each accommodating space can accommodate the connection part of the corresponding two battery cells. This application embodiment does not limit this.

[0075] Figure 4 An assembly diagram of the battery 100 according to an embodiment of this application is shown. Figure 4 As shown, the electrode output portions of two adjacent battery cells located in the same row need to be welded first. For example, the first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 112 are welded at welding point 115. One of the first electrode output portion 111a and the second electrode output portion 112a is a negative electrode output portion, and the other is a positive electrode output portion. Further, a bracket 120 can be inserted between two adjacent battery cells along the second direction Y. For example, the welding positions of the first electrode output portion 111a of the first battery cell 111 and the second electrode output portion 112a of the second battery cell 112 are inserted into the first receiving space 121 of the bracket 120 until the bracket 120 spans the entire battery cell in the second direction Y.

[0076] Figure 5 A schematic perspective view of the bracket 120 according to an embodiment of this application is shown. Figure 6 for Figure 5 Front view of the middle bracket 120. Figure 7 for Figure 5 A magnified view of part A in the middle. Figure 8 for Figure 5 Right view of the middle bracket 120. Optionally, as... Figure 5 As shown, the bracket 120 may include a bracket body 123 and a first fixing member 124, which is stacked with the bracket body 123 in the third direction Z. The first fixing member 124 is fixedly connected to the bracket body 123, and the first electrode output part 111a and the second electrode output part 112a are disposed in the first receiving space 121 formed between the bracket body 123 and the first fixing member 124.

[0077] Optionally, the support body 123 can be a plate-like structure, that is, the support body 123 is a hexahedron. For example, the support body 123 is a cuboid with all six faces being flat. As another example, the support body 123 is a hexahedron with some faces not being flat.

[0078] The first fixing member 124 is fixedly connected to the bracket body 123. This can mean that the first fixing member 124 is fixedly connected to the bracket body 123 before the bracket 120 is assembled with the battery module 110; or it can mean that the first fixing member 124 is fixedly connected to the bracket body 123 after the bracket 120 is assembled with the battery module 110.

[0079] In the embodiment, by stacking the support body 123 and the first fastener 124 in the third direction Z, a first receiving space 121 can be formed to restrict the displacement of the first electrode output portion 111a and the second electrode output portion 112a in the third direction Z, thereby reducing the risk of tearing at the connection between the first electrode output portion 111a and the second electrode output portion 112a.

[0080] Optionally, such as Figure 6 As shown, the bracket body 123 includes a first end 1201 and a second end 1202 in the second direction Y. A first fixing member 124 is fixedly connected to the first end 1201 and forms an opening with the second end 1202.

[0081] The first fixing member 124 is fixedly connected to the first end 1201 of the bracket body 123. This can mean that the first fixing member 124 and the first end 1201 are integrally formed, or that the first fixing member 124 and the first end 1201 are fixedly connected by an external fixing structure, or that the first fixing member 124 and the first end 1201 are snapped together. This application embodiment does not limit how the first fixing member 124 and the first end 1201 are fixedly connected. In addition, an opening is formed between the first fixing member 124 and the second end 1202, which allows the first electrode output part 111a and the second electrode output part 112a after electrical connection to be inserted into the first receiving space 121 along the opening.

[0082] In this embodiment, the first fixing member 124 is fixedly connected to the first end 1201 of the bracket body 123 in the second direction Y. This allows the battery module 110 to be inserted into the first receiving space 121 through the opening between the first fixing member 124 and the second end 1202 of the bracket body 123 in the second direction Y when assembling with the bracket 120. This reduces the assembly complexity of the battery module 110 and the bracket 120. Furthermore, fixing the first fixing member 124 to the first end 1201 of the bracket body 123 also increases the energy density of the battery 100.

[0083] Alternatively, in other embodiments, when the first fixing member 124 and the bracket body 123 are assembled between the first battery cell 111 and the second battery cell 112, the first fixing member 124 and the bracket body 123 can also be fixedly connected by applying glue or potting glue.

[0084] for Figure 3 The battery 100 shown is as follows: Figure 5 As shown, the bracket 120 may further include a second fixing member 125, which is stacked with the bracket body 123 in the third direction Z. The bracket body 123 is disposed between the first fixing member 124 and the second fixing member 125. The second fixing member 125 is fixedly connected to the bracket body 123, and the third electrode output portion 113a and the fourth electrode output portion 114a are disposed in the second receiving space 122 formed between the bracket body (123) and the second fixing member 125.

[0085] The second fastener 125 is fixedly connected to the bracket body 123. This can mean that the second fastener 125 is fixedly connected to the bracket body 123 before the bracket 120 is assembled with the battery module 110; or it can mean that the second fastener 125 is fixedly connected to the bracket body 123 after the bracket 120 is assembled with the battery module 110.

[0086] In the embodiment, by stacking the support body 123 and the second fastener 125 in the third direction Z, a second receiving space 122 can be formed to restrict the displacement of the third electrode output portion 113a and the fourth electrode output portion 114a in the third direction Z, thereby reducing the risk of tearing at the connection between the third electrode output portion 113a and the fourth electrode output portion 114a.

[0087] Optionally, such as Figure 6 As shown, the second fixing member 125 is fixedly connected to the first end 1201 of the bracket body 123 in the second direction Y, and an opening is formed between the second fixing member 125 and the second end 1202 of the bracket body 123 in the second direction Y.

[0088] The second fixing member 125 is fixedly connected to the first end 1201 of the bracket body 123. This can mean that the second fixing member 125 and the first end 1201 are integrally formed, or that the second fixing member 125 and the first end 1201 are fixedly connected through an external fixing structure, or that the second fixing member 125 and the first end 1201 are snapped together. This application embodiment does not limit how the second fixing member 125 and the first end 1201 are fixedly connected. In addition, an opening is formed between the second fixing member 125 and the second end 1202, which allows the third electrode output part 113a and the fourth electrode output part 114a after electrical connection to be inserted into the second receiving space 122 along the opening.

[0089] In this embodiment, the second fixing member 125 is fixedly connected to the first end 1201 of the bracket body 123 in the second direction Y. This allows the battery module 110 to be inserted into the second receiving space 122 through the opening between the second fixing member 125 and the second end 1202 of the bracket body 123 in the second direction Y when assembling with the bracket 120. This reduces the assembly complexity of the battery module 110 and the bracket 120. Furthermore, fixing the second fixing member 125 to the first end 1201 of the bracket body 123 also increases the energy density of the battery 100.

[0090] Alternatively, in other embodiments, when the second fastener 125 and the bracket body 123 are assembled between the third battery cell 113 and the fourth battery cell 114, the second fastener 125 and the bracket body 123 can also be fixedly connected by applying glue or potting glue.

[0091] In other embodiments, the first receiving space 121 and / or the second receiving space 122 may extend through the bracket 120 in the second direction Y. For Figure 2 The battery 100, bracket body 123, and first fixing member 124 shown are independent components. When assembling the battery module 110 and bracket 120, the bracket body 123 can first be inserted along the second direction Y below the electrically connected first electrode output portion 111a and second electrode output portion 112a. Then, the first fixing member 124 is moved downwards along the third direction Z above the first electrode output portion 111a and second electrode output portion 112a, and the first fixing member 124 is fixedly connected to the bracket body 123, for example, by snapping the first fixing member 124 into the bracket body 123. For... Figure 3 The battery 100 shown, the bracket body 123, the first fixing member 124, and the second fixing member 125 can be independent components. When assembling the battery module 110 and the bracket 120, the bracket body 123 can first be inserted along the second direction Y below the electrically connected first electrode output portion 111a and second electrode output portion 112a, and above the electrically connected third electrode output portion 113a and fourth electrode output portion 114. Then, the first fixing member 124 is moved downwards along the third direction Z to above the first electrode output portion 111a and second electrode output portion 112a, and fixedly connected to the bracket body 123, for example, by snapping the first fixing member 124 to the bracket body 123. Similarly, the second fixing member 125 is moved upwards along the third direction Z to below the third electrode output portion 113a and fourth electrode output portion 114a, and fixedly connected to the bracket body 123, for example, by snapping the second fixing member 125 to the bracket body 123.

[0092] Furthermore, based on the snap-fit ​​of the first fastener 124 and / or the second fastener 125 to the bracket body 123, the strength between the first fastener 124 and / or the second fastener 125 and the bracket body 123 can be enhanced by applying or injecting glue.

[0093] Optionally, see Figure 7 The first fixing member 124 includes a first wall 1241 and two first side walls 1242. The first wall 1241 is disposed opposite to the bracket body 123. The two first side walls 1242 extend from both ends of the first wall 1241 in the first direction X toward the bracket body 123. The two first side walls 1242 and the bracket body 123 form a first receiving space 121 in the third direction Z.

[0094] Specifically, the first fixing member 124 includes a first wall 1241 and two first side walls 1242, which together form a cavity structure. For example, the cross-section of the first fixing member 124 perpendicular to the second direction Y can be U-shaped. As another example, the first fixing member 124 may also include two side walls extending from both ends of the first wall 1241 in the second direction Y toward the support body 123, with the two side walls sequentially connected end-to-end to the two first side walls 1242, forming a cavity structure with the first wall 1241 having an opening facing the support body 123.

[0095] In one embodiment, the first fixing member 124 has a cavity, which can reduce the weight of the bracket 120, thereby reducing the weight of the battery 100.

[0096] Similarly, see Figure 7 The second fastener 125 includes a second wall 1251 and two second side walls 1252. The second wall 1251 is disposed opposite to the bracket body 123. The two second side walls 1252 extend from both ends of the second wall 1251 in the first direction X toward the bracket body 123. The two second side walls 1252 and the bracket body 123 form a second receiving space 122 in the third direction Z.

[0097] Specifically, the second fastener 125 includes a second wall 1251 and two second side walls 1252. The second wall 1251 and the two second side walls 1252 enclose a cavity structure. For example, the cross-section of the second fastener 125 perpendicular to the second direction Y can be U-shaped. As another example, the second fastener 125 may also include two side walls extending from the two ends of the second wall 1251 distributed in the second direction Y toward the support body 123. The two side walls are connected end-to-end to the two second side walls 1252 respectively, forming a cavity structure with the second wall 1251 having an opening facing the support body 123.

[0098] In one embodiment, the second fastener 125 has a cavity, which can further reduce the weight of the bracket 120, thereby reducing the weight of the battery 100.

[0099] Optionally, in other embodiments, the first fixing member 124 and / or the second fixing member 125 may also be solid hexahedrons. In this way, the first electrode output portion 111a and the second electrode output portion 112a, which are electrically connected to each other, can be disposed between two opposite walls of the first fixing member 124 and the support body 123; the third electrode output portion 113a and the fourth electrode output portion 114a, which are electrically connected to each other, can be disposed between two opposite walls of the second fixing member 125 and the support body 123.

[0100] Optionally, see [link to relevant documentation] Figure 7 and Figure 8A first reinforcing rib 1243 extending from the first wall 1241 toward the support body 123 is provided between the two first side walls 1242.

[0101] In one embodiment, a first reinforcing rib 1243 is provided on the first wall 1241 to enhance the rigidity of the first wall 1241.

[0102] Optionally, the first reinforcing rib 1243 may restrict the movement of the first electrode output section 111a and the second electrode output section 112a in the third direction Z.

[0103] In an embodiment, a first reinforcing rib 1243 is provided between the two first sidewalls 1242, which can limit the activity space of the first electrode output section 111a and the second electrode output section 112a, and prevent the first electrode output section 111a and the second electrode output section 112a from shaking and tearing when the battery 100 is impacted.

[0104] Alternatively, in the third direction Z, the first reinforcing rib 1243 is closer to the first electrode output portion 111a and the second electrode output portion 112a relative to the two first sidewalls 1242.

[0105] In the embodiment, on the third direction Z, the first reinforcing rib 1243 is positioned closer to the first electrode output portion 111a and the second electrode output portion 112a relative to the two first sidewalls 1242, so as to support the first electrode output portion 111a and the second electrode output portion 112a and prevent the first electrode output portion 111a and the second electrode output portion 112a from shaking.

[0106] If the first wall 1241 is a plane, as follows Figure 8 As shown, the first reinforcing rib 1243 has a size of S1, and the first sidewall 1242 has a size of S2, wherein S1 is greater than S2.

[0107] Similarly, see Figure 7 and Figure 8 A second reinforcing rib 1253 extending from the second wall 1251 toward the support body 123 is provided between the two second side walls 1252.

[0108] In one embodiment, a second reinforcing rib 1253 is provided on the second wall 1251 to enhance the rigidity of the second wall 1251.

[0109] Optionally, the second reinforcing rib 1253 is used to restrict the movement of the third electrode output section 113a and the fourth electrode output section 114a in the third direction Z.

[0110] In this embodiment, a second reinforcing rib 1253 is provided between the two second sidewalls 1252, which can restrict the movement space of the third electrode output section 113a and the fourth electrode output section 114a, and prevent the third electrode output section 113a and the fourth electrode output section 114a from shaking and tearing when the battery 100 is impacted.

[0111] Further optionally, in the third direction Z, the second reinforcing rib 1253 is closer to the third electrode output portion 113a and the fourth electrode output portion 114a relative to the two second sidewalls 1252.

[0112] In the embodiment, on the third direction Z, the second reinforcing rib 1253 is positioned closer to the third electrode output portion 113a and the fourth electrode output portion 114a relative to the two second sidewalls 1252, so as to facilitate support for the third electrode output portion 113a and the fourth electrode output portion 114a and prevent the third electrode output portion 113a and the fourth electrode output portion 114a from shaking.

[0113] If the second wall 1251 is a plane, such as Figure 8 As shown, in the third direction Z, the size of the second reinforcing rib 1253 is S3, and the size of the second sidewall 1252 is S4, wherein S3 is greater than S4.

[0114] Optionally, such as Figure 7 and Figure 8 As shown, a plurality of first reinforcing ribs 1243 may be provided on the first wall 1241, and optionally, the plurality of first reinforcing ribs 1243 may be spaced apart along a first direction X. Optionally, the plurality of first reinforcing ribs 1243 may also be spaced apart along a second direction Y. Further, the plurality of first reinforcing ribs 1243 may be arranged intersecting along the first direction X and the second direction Y.

[0115] In the embodiment, a plurality of first reinforcing ribs 1243 are arranged along the first direction X and / or the second direction Y, which can strengthen the support for the first electrode output section 111a and the second electrode output section 112a.

[0116] Similarly, such as Figure 7 and Figure 8 As shown, a plurality of second reinforcing ribs 1253 may be provided on the second wall 1251, and optionally, the plurality of second reinforcing ribs 1253 may be spaced apart along the first direction X. Optionally, the plurality of second reinforcing ribs may also be spaced apart along the second direction Y. Further, the plurality of second reinforcing ribs 1253 may be arranged intersecting along the first direction X and the second direction Y.

[0117] In the embodiment, a plurality of second reinforcing ribs 1253 are arranged along the first direction X and the second direction Y, which can strengthen the support for the third electrode output section 113a and the fourth electrode output section 114a.

[0118] Optionally, see [link to relevant documentation] Figure 7 The first wall 1241 is provided with a first glue injection flow hole 1244, which is used to introduce structural glue into the space between the first electrode output part 111a, the second electrode output part 112a and the bracket 120. The first electrode output part 111a and the second electrode output part 112a are fixedly connected to the bracket 120 by structural glue.

[0119] In other words, the first electrode output section 111a and the bracket 120 can be fixedly connected by structural adhesive injected into the first injection hole 1244, and the second electrode output section 112a and the bracket 120 can be fixedly connected by structural adhesive injected into the first injection hole 1244.

[0120] In this embodiment, structural adhesive is used to fix the first electrode output portion 111a and the second electrode output portion 112a to the bracket 120, which can enhance the rigidity between the battery module 110 and the bracket 120. This can prevent the first electrode output portion 111a and the second electrode output portion 112a from shaking in the first receiving space 121 of the bracket 120 after electrical connection, thereby reducing the risk of tearing.

[0121] Optionally, such as Figure 7 As shown, the support body 123 has a cavity 1231.

[0122] In this embodiment, the support body 123 is configured with a cavity 1231, which can reduce the weight of the support 120 and thus reduce the weight of the battery 100.

[0123] In other embodiments, the support body 123 may also be a solid structure.

[0124] See also Figure 7 At least one wall of the cavity 1231 is provided with a second glue injection passage 1232. Optionally, for Figure 2 The battery 100 shown has a second injection hole 1232 for introducing structural adhesive into the space between at least one of the first battery cell 111 and the second battery cell 112 and the support 120, wherein at least one battery cell and the support 120 are fixedly connected by structural adhesive. For... Figure 3 The battery 100 shown has a second injection hole 1232 for introducing structural adhesive into the space between at least one of the first battery cell 111, the second battery cell 112, the third battery cell 113 and the fourth battery cell 114 and the support 120, wherein at least one battery cell is fixedly connected to the support 120 by structural adhesive.

[0125] for Figure 7The bracket 120 shown, namely the first fixing member 124 is disposed above the bracket body 123, and the second fixing member 125 is disposed below the bracket body 123. The second glue injection flow hole 1232 disposed on at least one wall of the cavity 1231 of the bracket body 123 can also introduce structural glue between the third electrode output part 113a and the fourth electrode output part 114a and the bracket 120. The third electrode output part 113a and the fourth electrode output part 114a are fixedly connected to the bracket 120 by structural glue.

[0126] In this embodiment, structural adhesive is used to fix each battery cell to the bracket 120, which can enhance the rigidity between the battery module 110 and the bracket 120, prevent relative displacement between the battery module 110 and the bracket 120, and reduce damage to the battery cells.

[0127] Optionally, see [link to relevant documentation] Figure 7 The support body 123 has a first receiving groove 1233 extending along the second direction Y on its wall for supporting the first electrode output section 111a and the second electrode output section 112a. The first receiving groove 1233 contains a first sampling terminal, which is used to collect parameters of the first battery cell 111 and / or the second battery cell 112.

[0128] The first sampling terminal can be a temperature sensor, such as a negative temperature coefficient (NTC) temperature sensor. The first sampling terminal can also be a voltage sensor, a current detector, etc. This application does not limit the type of the first sampling terminal in its embodiments.

[0129] In this embodiment, by providing a first receiving groove 1233 on the wall of the support body 123 for supporting the first electrode output section 111a and the second electrode output section 112a to accommodate the first sampling terminal, real-time monitoring of the first battery cell 111 and / or the second battery cell 112 can be realized, thereby improving the safety of the battery 100.

[0130] Furthermore, the first receiving groove 1233 also contains structural adhesive, and the first sampling terminal and the bracket 120 are fixedly connected by the structural adhesive.

[0131] In this embodiment, the first sampling terminal and the bracket 120 are fixedly connected by structural adhesive, which can prevent the first sampling terminal from shaking and thus improve the sampling accuracy of the first sampling terminal.

[0132] Similarly, see also Figure 7The support body 123 has a second receiving groove 1234 extending in the second direction on its wall for supporting the third electrode output section 113a and the fourth electrode output section 114a. The second receiving groove 1234 accommodates a second sampling terminal, which is used to collect parameters of the third battery cell 113 and / or the fourth battery cell 114.

[0133] The second sampling terminal can be a temperature sensor, such as an NTC temperature sensor. The second sampling terminal can also be a voltage sensor, a current detector, etc. This application does not limit the type of the second sampling terminal in its embodiments.

[0134] In this embodiment, by providing a second receiving groove 1234 on the wall of the support body 123 for supporting the third electrode output section 113a and the fourth electrode output section 114a to accommodate the second sampling terminal, real-time monitoring of the third battery cell 113 and / or the fourth battery cell 114 can be realized, thereby improving the safety of the battery 100.

[0135] Furthermore, the second receiving groove 1234 also contains structural adhesive, and the second sampling terminal and the bracket 120 are fixedly connected by the structural adhesive.

[0136] In this embodiment, the second sampling terminal and the bracket 120 are fixedly connected by structural adhesive, which can prevent the second sampling terminal from shaking and thus improve the sampling accuracy of the second sampling terminal.

[0137] Optionally, in this embodiment, the second fixing member 125 and the first fixing member 124 are symmetrically arranged relative to the bracket body 123 on the third direction Z. Symmetrical arrangement may mean that the second fixing member 125 and the first fixing member 124 have completely identical structures and symmetrical positions, or it may simply mean that the second fixing member 125 and the first fixing member 124 are symmetrical in position but not completely identical in structure.

[0138] In this embodiment, the second fixing member 125 and the first fixing member 124 are symmetrically arranged relative to the bracket body 123, which can reduce the production difficulty of the bracket 120.

[0139] Figure 9 for Figure 3 The front view of battery 100 shown. Figure 10 for Figure 3 A top view of the battery 100 is shown. Alternatively, as... Figure 9 As shown, in the third direction Z, the size of the bracket 120 is H1, and the size of the battery module 110 is H2, where H1 is larger than H2. It should be understood that H2 can be the maximum size of the battery module 110 in the third direction Z. Optionally, as... Figure 10As shown, in the second direction Y, the bracket 120 has a size of W1, and the battery module 110 has a size of W2, where W1 is greater than W2.

[0140] In this embodiment, in the third direction Z, the size H1 of the bracket 120 is set to be larger than the size H2 of the battery module 110, and in the second direction Y, the size W1 of the bracket 120 is set to be larger than the size W2 of the battery module 110. This allows the bracket 120 to contact the casing first when the battery 100 is subjected to vibration and impact, thus playing a buffering role and reducing damage to the battery cells.

[0141] Figure 11 A schematic exploded view of a battery 100 according to an embodiment of this application is shown. Figure 11 As shown, the battery 100 also includes a housing 130 for accommodating the battery module 110 and the bracket 120.

[0142] In one embodiment, the housing 130 may be a metal housing, for example, an aluminum housing. In this case, the bracket 120 is an insulating bracket to prevent the electrode output portions between the battery cells in the battery module 110 from contacting the housing 130, thereby improving the safety of the battery 100. For example, the bracket 120 may be a plastic bracket.

[0143] In another embodiment, the housing can be an insulating housing; for example, housing 130 is a plastic housing. In this case, the bracket 120 can be a bracket of any material.

[0144] In this embodiment, the battery module 110 and the bracket 120 are disposed inside the housing 130, which can reduce the risk of damage to individual battery cells when the battery 100 is subjected to vibration and impact.

[0145] Optionally, the housing 130 is provided with an opening, and the battery 100 further includes an end cap that closes the opening to encapsulate the battery module 110 and the bracket 120 within the housing 130. It should be noted that the number and location of the openings are not limited in this embodiment. For example, the housing 130 may have one opening, which can be positioned in any direction; correspondingly, the battery 100 includes one end cap. As another example, the housing 130 may have two openings, which can be positioned opposite each other in any direction; correspondingly, the battery 100 includes two end caps.

[0146] Furthermore, the end cap is also provided with a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is electrically connected to the positive output part of the battery module 110, and the negative electrode terminal is electrically connected to the negative output part of the battery module 110.

[0147] like Figure 11As shown, the housing 130 has a first opening 131 and a second opening 132 along the first direction X. The battery 100 also includes a first end cap 141 and a second end cap 142. The first end cap 141 and the second end cap 142 can respectively cover the first opening 131 and the second opening 132 of the housing 130 to encapsulate the battery module 110 and the bracket 120 within the housing 130. For example, the first end cap 141 covers the first opening 131, and the second end cap 142 covers the second opening 132.

[0148] The positive output section 1101 of the battery module 110 is electrically connected to the positive electrode terminal 151, and the negative output section 1102 is electrically connected to the negative electrode terminal 152. The positive electrode terminal 151 and the negative electrode terminal 152 are disposed in the same end cover of the two end covers. For example, the positive electrode terminal 151 and the negative electrode terminal 152 are both disposed on the first end cover 141.

[0149] In other words, the positive output section 1101 and the negative output section 1102 of the battery module 110 are located at the same end of the battery module 110 along the first direction X.

[0150] One embodiment of this application also provides an electrical device, which may include the battery 100 from the foregoing various embodiments for providing electrical power to the device. Optionally, the electrical device may be a vehicle, a ship, or a spacecraft.

[0151] By installing the battery 100 of the aforementioned embodiment in the electrical device, since a bracket 120 is provided between the first battery cell 111 and the second battery cell 112 connected in series, and the connection part of the two battery cells is placed in the receiving space of the bracket, the connection of the battery cells can be better fixed, preventing the connection from shaking, thereby reducing the risk of tearing at the connection; in addition, the presence of the bracket 120 can increase the overall rigidity of the battery module 110, thereby facilitating the assembly of the battery module 110 into the casing.

[0152] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery (100), characterized in that, include: The battery module (110) includes a first battery cell (111) and a second battery cell (112) connected in series along a first direction (X). The first electrode output portion (111a) of the first battery cell (111) and the second electrode output portion (112a) of the second battery cell (112) are electrically connected by welding. The first direction (X) is the length direction of the battery (100). A bracket (120) is disposed between the first battery cell (111) and the second battery cell (112). The bracket (120) is provided with a first receiving space (121). The first receiving space (121) passes through the bracket (120) in the first direction (X). The first receiving space (121) is used to receive the first electrode output part (111a) and the second electrode output part (112a). The bracket (120) is an insulating bracket, and the bracket (120) includes: The bracket body (123) includes a first end (1201) and a second end (1202) in a second direction (Y), where the second direction (Y) is the width direction of the battery (100); The first fixing member (124) is stacked with the bracket body (123) in a third direction (Z), where the third direction (Z) is the thickness direction of the battery (100). The first fixing member (124) is fixedly connected to the bracket body (123). The first electrode output part (111a) and the second electrode output part (112a) are disposed in the first accommodating space (121) formed between the bracket body (123) and the first fixing member (124). The first fixing member (124) is fixedly connected to the first end (1201) and the first fixing member (124) forms an opening with the second end (1202).

2. The battery (100) according to claim 1, characterized in that, The first fastener (124) includes a first wall (1241) and two first side walls (1242). The first wall (1241) is disposed opposite to the bracket body (123). The two first side walls (1242) extend from the two ends of the first wall (1241) in the first direction (X) toward the bracket body (123). The two first side walls (1242) and the bracket body (123) form the first receiving space (121) in the third direction (Z).

3. The battery (100) according to claim 2, characterized in that, A first reinforcing rib (1243) extending from the first wall (1241) toward the support body (123) is provided between the two first side walls (1242).

4. The battery (100) according to claim 3, characterized in that, In the third direction (Z), the first reinforcing rib (1243) is closer to the first electrode output portion (111a) and the second electrode output portion (112a) relative to the two first sidewalls (1242).

5. The battery (100) according to claim 3, characterized in that, The plurality of first reinforcing ribs (1243) are spaced apart along the first direction (X) or the second direction (Y); or the plurality of first reinforcing ribs (1243) are intersected along the first direction (X) and the second direction (Y).

6. The battery (100) according to claim 2, characterized in that, The first wall (1241) is provided with a first glue injection flow hole (1244), which is used to introduce structural glue into the space between the first electrode output part (111a) and the second electrode output part (112a) and the bracket (120). The first electrode output part (111a) and the second electrode output part (112a) are fixedly connected to the bracket (120) by the structural glue.

7. The battery (100) according to claim 1, characterized in that, The battery module (110) also includes: A third battery cell (113) and a fourth battery cell (114) are connected in series along the first direction (X). The third electrode output portion (113a) of the third battery cell (113) and the fourth electrode output portion (114a) of the fourth battery cell (114) are electrically connected by welding. The third battery cell (113) and the first battery cell (111) are stacked along the third direction (Z). The fourth battery cell (114) and the second battery cell (112) are stacked along the third direction (Z). The support (120) also includes: The second fastener (125) is stacked with the bracket body (123) in a third direction (Z), and the bracket body (123) is disposed between the first fastener (124) and the second fastener (125); The second fixing member (125) is fixedly connected to the bracket body (123), and the third electrode output part (113a) and the fourth electrode output part (114a) are disposed in the second accommodating space (122) between the bracket body (123) and the second fixing member (125).

8. The battery (100) according to claim 7, characterized in that, On the third direction (Z), the second fixing member (125) and the first fixing member (124) are symmetrically arranged relative to the bracket body (123).

9. The battery (100) according to claim 7, characterized in that, The support body (123) has a cavity (1231).

10. The battery (100) according to claim 9, characterized in that, At least one wall of the cavity (1231) is provided with a second injection flow hole (1232), which is used to introduce structural adhesive into the space between at least one of the first battery cell (111), the second battery cell (112), the third battery cell (113) and the fourth battery cell (114) and the bracket (120), and the at least one battery cell is fixedly connected to the bracket (120) by the structural adhesive.

11. The battery (100) according to claim 7, characterized in that, The support body (123) has a first receiving groove (1233) extending along the second direction on the wall for supporting the first electrode output section (111a) and the second electrode output section (112a). The first receiving groove (1233) contains a first sampling terminal, which is used to collect parameters of the first battery cell (111) and / or the second battery cell (112).

12. The battery (100) according to claim 11, characterized in that, The first receiving groove (1233) also contains structural adhesive, and the first sampling terminal is fixedly connected to the bracket (120) by the structural adhesive.

13. The battery (100) according to any one of claims 1 to 12, characterized in that, In the second direction (Y), the size of the bracket (120) is larger than the size of the battery module (110); and / or On the third direction (Z), the size of the bracket (120) is larger than the size of the battery module (110).

14. The battery (100) according to any one of claims 1 to 12, characterized in that, The battery (100) also includes: The housing (130) is used to house the battery module (110) and the bracket (120).

15. The battery (100) according to claim 14, characterized in that, The housing (130) is provided with an opening, and the battery (100) further includes: An end cap that closes the opening to encapsulate the battery module (110) and the bracket (120) within the housing (130); The end cap is provided with a positive electrode terminal (151) and a negative electrode terminal (152). The positive electrode terminal (151) is electrically connected to the positive output part (1101) of the battery module (110), and the negative electrode terminal (152) is electrically connected to the negative output part (1102) of the battery module (110).

16. An electrical appliance, characterized in that, Includes a battery (100) as claimed in any one of claims 1 to 15, the battery (100) being used to provide electrical energy to the electrical device.

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