Battery and electric device

Abstract

The invention provides a battery and an electric device. The battery comprises a shell, and an accommodating space is formed in the shell; the battery monomers are provided with electrode terminals, and the battery monomers are mounted in the accommodating space; a plurality of busbars to which each electrode terminal is fixedly connected; and the supporting component is fixedly connected with the plurality of busbars. A plurality of busbars are fixedly connected with electrode terminals of a plurality of battery monomers to realize electric connection of the plurality of battery monomers so as to facilitate electric energy output and input of the battery monomers, and a supporting component is arranged to be fixedly connected with the plurality of busbars so as to fix the plurality of busbars into a whole through the supporting component, so that the dominant frequency and the structural strength of the battery are improved; and the safety performance of the battery is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and more specifically, relates to a battery and an electrical device. Background Art

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0003] The current battery is to glue the battery cells to the bottom of the shell, connect the bus bar and then install the cover. However, this structure is weak in strength and has a low main frequency. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a battery and an electrical device to solve the problems of weak structural strength and low main frequency of batteries in the related art.

[0005] In a first aspect, an embodiment of the present application provides a battery, comprising:

[0006] a shell, wherein a receiving space is provided in the shell;

[0007] A plurality of battery cells, each of which is provided with an electrode terminal, and the battery cells are installed in the accommodation space;

[0008] a plurality of busbars, each electrode terminal being fixedly connected to the busbar;

[0009] The supporting member is fixedly connected to the plurality of busbars.

[0010] In the technical solution of the embodiment of the present application, multiple busbars are fixedly connected to the electrode terminals of multiple battery cells to realize electrical connection of multiple battery cells so that the battery cells can output and input electrical energy, and a supporting structure is provided to be fixedly connected to the multiple busbars so that the multiple busbars can be fixed into one through the supporting structure to improve the main frequency and structural strength of the battery, thereby improving the safety performance of the battery.

[0011] In some embodiments, the support member includes a reinforcing plate, and the plurality of busbars are fixedly connected to the reinforcing plate.

[0012] The supporting structure uses a reinforcing plate to improve the structural strength of the battery and also facilitates connection and fixation with the busbar.

[0013] In some embodiments, the housing includes a first wall, the first wall constituting at least a portion of the support member, and the busbar is fixedly connected to the first wall.

[0014] The bus is fixedly connected to the first wall, and then the bus is fixed to the shell to more stably fix the bus, thereby better improving the main frequency and structural strength of the battery.

[0015] In some embodiments, the support member further includes a reinforcing plate, the busbar is fixedly connected to the reinforcing plate, and the reinforcing plate is fixedly connected to the first wall.

[0016] The supporting structure uses a reinforcing plate to improve the structural strength of the battery. The reinforcing plate connects the busbar and the first wall to better fix the busbar, further improving the main frequency and structural strength of the battery.

[0017] In some embodiments, the reinforcement plate is adhesively connected to the first wall.

[0018] The reinforcing plate is bonded to the first wall, which is convenient for connection and facilitates assembly of the battery.

[0019] In some embodiments, the reinforcement plate includes an insulating plate.

[0020] Use insulating plates to improve insulation protection performance and enhance battery safety.

[0021] In some embodiments, the support member is adhesively connected to the busbar.

[0022] The supporting member is bonded to the busbar, which is convenient for connection and assembly.

[0023] In some embodiments, the battery cell has a first end surface along the height direction, the electrode terminal is provided on the first end surface, and the battery further includes a pressure strip, opposite sides of which are respectively fixedly connected to the first end surfaces of two adjacent battery cells.

[0024] Providing a pressure strip to connect the first end faces of two adjacent battery cells can improve the overall structural strength of the battery, increase the battery main frequency, and also limit the expansion and deformation of the battery cells to a certain extent, thereby improving the charge and discharge performance of the battery.

[0025] In some embodiments, the bead is fixedly connected to the support member.

[0026] The pressure strip is fixedly connected to the supporting structure to further improve the main frequency and structural strength of the battery.

[0027] In some embodiments, the battery further comprises a reinforcing beam, battery cells are respectively provided on opposite sides of the reinforcing beam, the reinforcing beam is fixedly connected to the shell, and a pressure strip is provided on the side of the reinforcing beam close to the supporting member, the pressure strip is fixedly connected to the reinforcing beam.

[0028] A reinforcing beam is provided to increase the structural strength of the battery, and the pressure strip is fixedly connected to the reinforcing beam to further stabilize the pressure strip, and the pressure strip is connected to the battery cell, thereby better stabilizing the battery cell and improving the overall structural strength and main frequency of the battery.

[0029] In some embodiments, the pressure strip is fixedly connected to the corresponding first end surface by structural adhesive.

[0030] Use structural adhesive to connect the pressure strip to the first end face, making the bonding stronger and further improving the main frequency and structural strength of the battery.

[0031] In some embodiments, the battery further includes a glue blocking structure for limiting the structural glue to the first end surface.

[0032] Setting up a glue blocking structure to limit the structure to the first end face can prevent the structural glue from flowing to the side of the battery cell to a certain extent, and to a certain extent prevent the structural glue from restricting the normal expansion of the battery cell during charging and discharging, thereby improving the charging and discharging performance of the battery.

[0033] In some embodiments, the glue blocking structure includes a partition disposed between adjacent battery cells, and an upper end of the partition protrudes from the first end surface.

[0034] A separator is provided between the battery cells and is made to protrude from the first end surface. During assembly, uncured structural adhesive flows through the separator, resulting in a simple structure and easy assembly.

[0035] In some embodiments, the glue blocking structure includes a shield, which is disposed on a side of the battery cell close to the pressure strip.

[0036] Providing a protective cover on the side of the battery cell can not only protect the side of the battery cell, but also effectively reduce the risk of structural adhesive flowing onto the side of the battery cell.

[0037] In a second aspect, an embodiment of the present application provides an electrical device comprising a battery as described in the above embodiment.

[0038] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] Figure 1 A schematic structural diagram of a vehicle according to some embodiments of the present application;

[0041] Figure 2 Schematic diagram of the exploded structure of batteries according to some embodiments of the present application;

[0042] Figure 3 Schematic diagram of the cross-sectional structure of batteries according to some embodiments of the present application;

[0043] Figure 4 Schematic diagrams of cross-sectional structures of batteries according to other embodiments of the present application;

[0044] Figure 5 Schematic diagrams of cross-sectional structures of batteries according to some other embodiments of the present application;

[0045] Figure 6 Schematic diagrams of cross-sectional structures of batteries according to some further embodiments of the present application;

[0046] Figure 7 Schematic diagrams of cross-sectional structures of batteries according to other embodiments of the present application;

[0047] Figure 8 Schematic diagrams of cross-sectional structures of batteries according to some further embodiments of the present application;

[0048] Figure 9 Schematic diagrams of cross-sectional structures of batteries according to some other embodiments of the present application;

[0049] Figure 10 Schematic diagrams of cross-sectional structures of batteries according to other embodiments of the present application;

[0050] Figure 11 Schematic diagrams of cross-sectional structures of batteries according to some further embodiments of the present application;

[0051] Figure 12 Schematic diagrams of cross-sectional structures of batteries according to some other embodiments of the present application;

[0052] Figure 13 Schematic diagram of the cross-sectional structure of batteries according to some further embodiments of the present application.

[0053] Among them, the main marks of the drawings in the figure are:

[0054] 1000-Vehicle; 1001-Battery; 1002-Controller; 1003-Motor;

[0055] 10-housing; 101-first wall; 11-cover; 12-shell; 120-accommodation space;

[0056] 20 - battery cell; 21 - electrode terminal; 22 - first end face; 30 - busbar; 40 - supporting member; 41 - reinforcing plate; 51 - first adhesive layer; 52 - second adhesive layer; 53 - third adhesive layer; 54 - fourth adhesive layer; 55 - fifth adhesive layer; 61 - pressure strip; 62 - adhesive retaining structure; 621 - partition; 622 - protective cover; 63 - reinforcing beam. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0059] In the description of the embodiments of this application, the technical terms "first," "second," etc., are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance, or to implicitly specify the quantity, specific order, or primary-secondary relationship of the technical features indicated. Therefore, a feature designated "first" or "second" may explicitly or implicitly include one or more of such features.

[0060] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0061] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0062] In the description of the embodiments of this application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more (including two groups), and "multiple sheets" refers to two or more (including two sheets). "Several" means one or more, unless otherwise specifically defined.

[0063] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0065] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0066] In the description of the embodiments of this application, unless otherwise specified or limited, the technical term "adjacent" refers to proximity in position. For example, if there are three components A1, A2, and B, and the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, or B is adjacent to A2. For another example, when there are multiple components C, the multiple components C are C1, C2, ..., C N , when one of the C components, such as C2, is closer to the B component than other C components, then B is adjacent to C2, or it can be said that C2 is adjacent to B.

[0067] When a structural system is stimulated by external forces and set in motion, it naturally vibrates at a specific frequency. This frequency is called the structure's natural frequency. A structure typically has multiple natural frequencies, with the frequency with the highest vibration being the dominant frequency of the structural system. The natural frequency is independent of external excitation and is an inherent property of the structure. The natural frequency exists regardless of external excitation; however, when excitation is applied, the structure vibrates at this frequency. The natural frequency is related to two factors: mass and stiffness. Increasing mass reduces the structure's natural frequency, while increasing stiffness increases it. Consequently, increasing structural strength also increases the dominant frequency.

[0068] When a structure is stimulated by external forces, it vibrates at its natural frequency, with the primary frequency producing the greatest vibration. Therefore, the closer the frequency of the external excitation is to the structure's primary frequency, the more likely it is to resonate and the greater the vibration amplitude. The lower the primary frequency, the more susceptible it is to external excitation, and consequently, the more likely it is to resonate and damage the structure. Conversely, the higher the primary frequency, the less susceptible it is to external excitation and, consequently, the less likely it is to resonate. Therefore, for batteries, increasing the primary frequency can extend their lifespan and safety.

[0069] In the embodiments of the present application, the battery cells include but are not limited to lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries. The shapes of the battery cells include but are not limited to flat bodies, rectangular parallelepipeds, etc.

[0070] Battery cells are equipped with electrode terminals. Electrode terminals are conductive components on a battery cell that are used to transfer electrical energy from the cell or charge the cell. A battery cell typically has two electrode terminals, forming the positive and negative poles of the cell.

[0071] The battery referred to in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. A battery generally includes a housing that encloses one or more battery cells. The housing prevents liquids and other foreign matter from affecting the charging or discharging of the battery cells. The housing forms the outer shell of the battery.

[0072] In a battery, when there are multiple battery cells, they can be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections. Multiple battery cells can be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell structure is housed in a box. Of course, a battery can also be formed by first connecting multiple battery cells in series, in parallel, or in a hybrid connection to form a battery module, and then connecting multiple battery modules in series, in parallel, or in a hybrid connection to form a whole, which is then housed in a box.

[0073] Batteries also include busbars, which are conductive components used to connect the electrode terminals of battery cells and external circuits, facilitating the charging and discharging of the battery cells. Busbars can also be used to connect the electrode terminals of multiple battery cells, achieving electrical connections between them.

[0074] The battery cells are installed in a housing (such as a box) by bonding the bottom of the battery cells to the bottom of the housing. After the busbars are connected to the electrode terminals of the battery cells, the top cover is installed to complete the assembly. This structure is relatively weak because the busbars are fixed and supported by the electrode terminals, resulting in a lower main frequency.

[0075] Based on the above considerations, in order to solve the problem of low main frequency and weak structural strength of the battery, an embodiment of the present application provides a battery, which increases the structural strength of the battery and improves the main frequency of the battery by setting a supporting member and fixing the supporting member to the bus.

[0076] The battery disclosed in the embodiments of the present application can be used in electrical devices that use the battery as a power source or various energy storage systems that use the battery as an energy storage element, such as energy storage power supply systems such as hydropower, thermal power, wind power and solar power stations. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle and a spacecraft, and the like.

[0077] For the convenience of description, an electric device is provided in accordance with an embodiment of the present application, and the electric device is described by taking a vehicle as an example.

[0078] Please refer to Figure 1 , Figure 1 A schematic structural diagram of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 1001 is provided inside the vehicle 1000, and the battery 1001 may be provided at the bottom, head or tail of the vehicle 1000. The battery 1001 may be used to power the vehicle 1000, for example, the battery 1001 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 1002 and a motor 1003, and the controller 1002 is used to control the battery 1001 to power the motor 1003, for example, for starting, navigating and operating power requirements of the vehicle 1000 during driving.

[0079] In some embodiments of the present application, the battery 1001 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0080] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the exploded structure of a battery 1001 provided in some embodiments of the present application. Battery 1001 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 is configured to provide a storage space 120 for the battery cell 20, and the housing 10 can have a variety of structures. In some embodiments, the housing 10 can include a shell 12 and a cover 11. The shell 12 and cover 11 overlap each other, and together define a storage space 120 for accommodating the battery cell 20. The cover 11 can be a hollow structure with one end open, and the housing 12 can be a plate-like structure. The shell 12 overlaps the open side of the cover 11, so that the shell 12 and cover 11 together define the storage space 120. The housing 12 and cover 11 can also be hollow structures with one end open, with the open side of the shell 12 overlapping the open side of the cover 11. Of course, the housing 10 formed by the shell 12 and cover 11 can have a variety of shapes, such as a cylinder, a rectangular parallelepiped, etc. A plurality of battery cells 20 are connected in parallel, in series, or in a mixed combination and placed in a housing 10 formed by fastening the shell 12 and the cover 11 together.

[0081] See also Figures 2 to 11 According to some embodiments of the present application, a battery 1001 is provided, comprising a housing 10, a plurality of battery cells 20, a plurality of busbars 30, and a support member 40. The housing 10 defines a receiving space 120, wherein the battery cells 20 are mounted in the receiving space 120. The battery cells 20 are provided with electrode terminals 21, which are fixedly connected to the busbars 30. The support member 40 is fixedly connected to the plurality of busbars 30.

[0082] The housing 10 is a shell structure having an internal accommodation space 120 for accommodating and protecting the battery cell 20. The housing 10 can be made of metal materials such as aluminum, aluminum alloy, iron, steel, etc. Of course, the housing 10 can also be made of materials such as plastic and ceramic.

[0083] The battery cell 20 is the smallest charge and discharge unit in the battery 1001 .

[0084] The electrode terminal 21 is a conductive member provided on the battery cell 20 and is used to charge the battery cell 20 or provide the battery cell 20 with electrical energy.

[0085] The busbar 30 refers to a conductive part used to connect the electrode terminals 21 on the battery cells 20 so as to connect to the external circuit to realize the charging and discharging of the battery cells 20; and to connect the electrode terminals 21 of multiple battery cells 20 to realize the electrical connection between the battery cells 20. The busbar 30 can be made of metal, such as aluminum, copper, iron, steel and other materials. Of course, the busbar 30 can also be made of other conductive materials, such as conductive rubber, conductive plastic and other materials. The busbar 30 made of metal aluminum is often called aluminum bar or aluminum busbar, and the busbar 30 made of metal copper is often called copper bar or copper busbar. The busbar 30 is mostly set in the shape of a plate or sheet to connect the electrode terminals 21. Of course, the busbar 30 can also be set in the shape of a block, strip, etc., and can be set according to specific needs.

[0086] The busbar 30 is fixedly connected to the electrode terminal 21 to achieve an electrically conductive connection between the busbar 30 and the electrode terminal 21. The busbar 30 can be welded to the electrode terminal 21 to ensure good electrical conductivity between the busbar 30 and the electrode terminal 21. Of course, the busbar 30 can also be fixedly connected to the electrode terminal 21 by other means, such as bonding to the electrode terminal 21 with a conductive adhesive.

[0087] The support member 40 refers to a structural member that plays a fixing and supporting role. The support member 40 can be of various shapes and sizes, such as rectangular, circular, hexagonal, etc. Specifically, the shape of the support member 40 can be set as needed.

[0088] The support member 40 is fixedly connected to the multiple busbars 30, fixing the multiple busbars 30 together to improve the overall structural strength and increase the main frequency of the battery 1001. The support member 40 can be welded to the busbars 30 to ensure a good fixation between the busbars 30 and the support member 40. Of course, the busbars 30 can also be fixedly connected to the support member 40 by other means, such as bonding the support member 40 to the busbars 30 with an adhesive layer to achieve the fixation of the busbars 30 to the support member 40.

[0089] In some embodiments, the support member 40 may also be fixedly connected to the housing 10 to better support and fix the busbar 30 , further enhance the structural strength, and increase the main frequency.

[0090] In the technical solution of the embodiment of the present application, multiple busbars 30 are fixedly connected to the electrode terminals 21 of multiple battery cells 20 to achieve electrical connection of the multiple battery cells 20 so that the battery cells 20 can output and input electrical energy, and a support member 40 is provided to be fixedly connected to the multiple busbars 30 so that the multiple busbars 30 can be fixed into one through the support member 40, so as to improve the main frequency and structural strength of the battery 1001, thereby improving the safety performance of the battery 1001.

[0091] See also Figure 2 Battery 1001 has a height, a length, and a width. In the figure, the Z direction represents the height of battery 1001, the X direction represents the length of battery 1001, and the Y direction represents the width of battery 1001. The length of battery 1001 can be longer or shorter than its width. The outer casing 10 defines the external structure of battery 1001. The height of outer casing 10 represents the height direction Z of battery 1001, the length of outer casing 10 represents the length direction X of battery 1001, and the width of outer casing 10 represents the width direction Y of battery 1001. Battery cells 20 also have a height, a length, and a width. The height of battery cells 20 coincides with the height direction Z of outer casing 10. The length of battery cells 20 coincides with the length direction X of outer casing 10, and accordingly, the width of battery cells 20 coincides with the width direction Y of outer casing 10. Alternatively, the length of battery cells 20 can coincide with the width direction Y of outer casing 10, and accordingly, the width of battery cells 20 coincides with the length direction X of outer casing 10.

[0092] In some embodiments, the bottom surface of the battery cell 20 in the height direction Z can be fixedly connected to the bottom of the outer shell 10, that is, the bottom surface of the battery cell 20 in the height direction Z can be fixedly connected to the bottom surface of the accommodating space 120, so as to better fix the battery cell 20, so that the outer shell 10 and the battery cell 20 form a whole, thereby improving the structural strength and main frequency of the battery 1001.

[0093] In some embodiments, the bottom surface of the battery cell 20 in the height direction Z and the bottom surface of the accommodation space 120 may be bonded and fixed to facilitate assembly.

[0094] In some embodiments, the top surface of the battery cell 20 in the height direction Z can be fixedly connected to the top of the outer shell 10, that is, the top surface of the battery cell 20 in the height direction Z is fixedly connected to the top surface of the accommodating space 120, so as to better fix the battery cell 20, so that the outer shell 10 and the battery cell 20 form a whole, thereby improving the structural strength and main frequency of the battery 1001.

[0095] In some embodiments, the top surface of the battery cell 20 in the height direction Z and the top surface of the accommodation space 120 may be bonded and fixed to facilitate assembly.

[0096] See also Figure 3 In some embodiments, the support member 40 includes a reinforcing plate 41 , and the plurality of busbars 30 are fixedly connected to the reinforcing plate 41 .

[0097] The reinforcing plate 41 is a plate made of a hard material. The shape of the reinforcing plate 41 can be rectangular, triangular, circular, elliptical, etc., and can be specifically set as needed. The reinforcing plate 41 can be made of metal, plastic, ceramic, etc.

[0098] The reinforcement plate 41 can improve the structural strength of the battery 1001. The multiple busbars 30 are fixedly connected to the reinforcement plate 41. The reinforcement plate 41 fixes the multiple busbars 30 together to further improve the main frequency and structural strength of the battery 1001.

[0099] The support member 40 uses a reinforcing plate 41 to enhance the structural strength of the battery 1001 and facilitates connection and fixation with the busbar 30 .

[0100] In some embodiments, the reinforcing plate 41 may be fixedly connected to the outer shell 10 to stably support the reinforcing plate 41 , thereby more stably supporting the bus 30 , thereby improving the structural strength and main frequency of the battery 1001 .

[0101] In some embodiments, the reinforcing plate 41 and the busbar 30 can be welded together for a secure connection. If the reinforcing plate 41 is made of plastic, the reinforcing plate 41 and the busbar 30 can be welded together using friction welding, heat fusion welding, or other methods. For another example, if the reinforcing plate 41 is made of metal, the reinforcing plate 41 and the busbar 30 can be welded together using laser welding, friction welding, or other methods.

[0102] In some embodiments, the reinforcing plate 41 and the bus bar 30 can be bonded together to facilitate assembly. For example, double-sided tape can be provided to bond the reinforcing plate 41 and the bus bar 30 together. Of course, the reinforcing plate 41 and the bus bar 30 can also be bonded together using glue.

[0103] In some embodiments, the reinforcing plate 41 can be bonded to the busbar 30 using structural adhesive. Structural adhesives are high-strength, can withstand heavy loads, and are resistant to aging, fatigue, and corrosion. They offer stable performance over their expected lifespan and are suitable for bonding high-stress structural components. Using structural adhesive to connect the reinforcing plate 41 to the busbar 30 provides a strong connection and can further increase the main frequency of the battery 1001.

[0104] In some embodiments, reinforcing plate 41 may be made of mica. Mica is a sheet material primarily made of mica. It is typically formed by bonding mica paper with organic silica gel, then heating and pressing. Mica is a silicate mineral with excellent electrical insulation, chemical stability, and temperature resistance. Therefore, mica has excellent insulation and high-temperature resistance. Mica sheets are typically in the form of plates or sheets, and their thickness can be customized based on specific needs, typically ranging from 0.1 mm to 30 mm.

[0105] The reinforcing plate 41 is made of a mica plate, which can not only support the busbar 30 , but also conduct and dissipate heat for the busbar 30 , and can also provide insulation protection for the busbar 30 .

[0106] See also Figure 4 In some embodiments, the housing 10 includes a first wall 101 , the first wall 101 constituting at least a portion of the support structure 40 , and the busbar 30 is fixedly connected to the first wall 101 .

[0107] The first wall 101 refers to a side wall of the housing 10, and may be, for example, a side wall at the top or bottom of the housing 10 in the height direction Z, or a side wall at an end in the length direction or an end in the width direction of the housing 10. When the housing 10 includes a shell 12 and a cover 11, the first wall 101 may be the cover 11 or a side wall of the shell 12.

[0108] The first wall 101 constituting at least a portion of the support member 40 means that the first wall 101 of the housing 10 also serves as the support member 40 or a portion of the support member 40 .

[0109] The busbar 30 is fixedly connected to the first wall 101 . For example, the busbar 30 and the first wall 101 may be bonded together or welded together.

[0110] The busbar 30 is fixedly connected to the first wall 101 , and then the busbar 30 is fixed to the housing 10 , so as to more stably fix the busbar 30 and better improve the main frequency and structural strength of the battery 1001 .

[0111] In some embodiments, the first wall 101 is a side wall of the housing 10 that directly faces the side of the battery cell 20 on which the electrode terminals 21 are provided, and the busbar 30 can be directly fixedly connected to the first wall 101. If the first wall 101 is another side wall of the housing 10, that is, the side wall does not directly face the side of the battery cell 20 on which the electrode terminals 21 are provided, the busbar 30 can be extended to the first wall 101 for fixed connection thereto.

[0112] In some embodiments, the first wall 101 and the busbar 30 can be welded together for a secure connection. For example, if the first wall 101 is made of plastic, the first wall 101 and the busbar 30 can be welded together using friction welding, heat fusion welding, or other methods. For another example, if the first wall 101 is made of metal, the first wall 101 and the busbar 30 can be bonded together using insulating adhesive.

[0113] In some embodiments, the first wall 101 and the busbar 30 can be bonded together to facilitate assembly. For example, double-sided tape can be provided to bond the reinforcing plate 41 and the busbar 30. Of course, the reinforcing plate 41 and the busbar 30 can also be bonded together using glue.

[0114] In some embodiments, the first wall 101 can be bonded and fixed to the busbar 30 by structural adhesive, and the connection structure has high strength, which can further improve the main frequency of the battery 1001.

[0115] See also Figure 5 In some embodiments, the support member 40 includes a reinforcing plate 41 and the first wall 101 of the housing 10 , the busbar 30 is fixedly connected to the reinforcing plate 41 , and the reinforcing plate 41 is fixedly connected to the first wall 101 .

[0116] The support member 40 uses a reinforcing plate 41 to improve the structural strength of the battery 1001 . The reinforcing plate 41 connects the busbar 30 and the first wall 101 to better fix the busbar 30 and further improve the main frequency and structural strength of the battery 1001 .

[0117] In some embodiments, the reinforcing plate 41 and the first wall 101 can be welded together to ensure a secure connection.

[0118] See also Figure 6 In some embodiments, the reinforcing plate 41 is bonded to the first wall 101 of the housing 10 .

[0119] Adhesive bonding refers to the use of adhesive to connect two objects.

[0120] The reinforcing plate 41 is bonded to the first wall 101, for example, by bonding the reinforcing plate 41 to the first wall 101 via a first adhesive layer 51. This facilitates connection and facilitates assembly of the battery 1001. The first adhesive layer 51 may be double-sided tape or a cured adhesive layer of another adhesive, such as a cured structural adhesive.

[0121] In some embodiments, the first adhesive layer 51 is a structural adhesive layer, which can make the reinforcing plate 41 and the first wall 101 more firmly connected, thereby improving the structural strength of the battery 1001 and increasing the main frequency of the battery 1001.

[0122] See also Figure 3 、 Figure 5 and Figure 6 In some embodiments, the reinforcing plate 41 includes an insulating plate.

[0123] Insulating panels are panels with insulating properties, such as those made of plastic, bakelite, mica, and other materials. They can also be panels with an insulating coating, such as a metal panel coated with plastic, bakelite, mica, or other materials to impart insulating properties.

[0124] An insulating plate is used to improve the insulation protection performance and thus enhance the safety of the battery 1001 .

[0125] See also Figure 6 In some embodiments, the support member 40 is bonded to the busbar 30 .

[0126] The support member 40 and the busbar 30 are bonded together, for example, by bonding the support member 40 and the busbar 30 together via a second adhesive layer 52. This facilitates connection and facilitates assembly of the battery 1001. The second adhesive layer 52 may be double-sided tape or a cured adhesive layer of another adhesive, such as a cured structural adhesive.

[0127] In some embodiments, the second adhesive layer 52 is a structural adhesive layer, which can make the support member 40 and the busbar 30 more firmly connected, thereby improving the structural strength of the battery 1001 and increasing the main frequency of the battery 1001.

[0128] In some embodiments, when the supporting member 40 includes a reinforcing plate 41 , the busbar 30 is bonded to the reinforcing plate 41 via the second adhesive layer 52 to facilitate connection and fixation.

[0129] See also Figure 7 In some embodiments, when the supporting member 40 only includes the first wall 101 of the housing 10 , the busbar 30 is bonded to the first wall 101 via the second adhesive layer 52 .

[0130] See also Figure 8 In some embodiments, the battery cell 20 has a first end surface 22 along the height direction Z, the electrode terminal 21 is provided on the first end surface 22, and the battery 1001 further includes a pressure strip 61, the opposite sides of the pressure strip 61 are respectively fixedly connected to the first end surfaces 22 of two adjacent battery cells 20.

[0131] The first end surface 22 refers to an end surface of the battery cell 20 at one end along the height direction Z. The electrode terminal 21 is located on the first end surface 22 .

[0132] The layering strip 61 refers to a structural member made of a hard material and in the shape of a strip or block. The opposite sides of the layering strip 61 refer to the opposite sides in the width direction of the layering strip 61. The layering strip 61 can be made of materials such as plastic, metal, and ceramic.

[0133] The opposing sides of the pressure strip 61 are fixedly connected to the first end faces 22 of two adjacent battery cells 20. For example, the opposing sides of the pressure strip 61 can be bonded to the first end faces 22 of two adjacent battery cells 20, or the opposing sides of the pressure strip 61 can be welded to the first end faces 22 of two adjacent battery cells 20, thereby fixing the first end faces 22 of the two adjacent battery cells 20 into one body. This improves the structural strength of the battery 1001 and reduces the main frequency. In addition, the battery cells 20 will expand during the charge and discharge process. If the battery cells 20 expand and deform excessively, the electrode terminals 21 will shift, reducing the connection strength with the busbar 30 and even causing damage to the battery cells 20. Connecting the first end faces 22 of two adjacent battery cells 20 through the pressure strip 61 can, to a certain extent, prevent the battery cells 20 from excessive expansion and deformation, thereby improving the charge and discharge performance of the battery 1001.

[0134] A pressure strip 61 is provided to connect the first end faces 22 of two adjacent battery cells 20, thereby improving the overall structural strength of the battery 1001 and the main frequency of the battery 1001. It can also limit the expansion and deformation of the battery cells 20 to a certain extent, thereby improving the charge and discharge performance of the battery 1001.

[0135] In some embodiments, the bead 61 can be bonded to the first end face 22 of the corresponding battery cell 20. For example, the bead 61 can be bonded to the corresponding first end face 22 via a third adhesive layer 53. This facilitates connection and facilitates assembly of the battery 1001. The third adhesive layer 53 can be double-sided tape or a cured adhesive layer formed by other adhesives, such as a cured structural adhesive.

[0136] See also Figures 8 to 10 In some embodiments, the pressure strip 61 is fixedly connected to the support member 40 .

[0137] The holding strip 61 is fixedly connected to the supporting member 40 to further improve the main frequency and structural strength of the battery 1001.

[0138] In some embodiments, the bead 61 and the support member 40 may be bonded together, for example, by a fourth adhesive layer 54. The fourth adhesive layer 54 may be double-sided tape or a cured adhesive layer of another adhesive, such as a cured structural adhesive. Alternatively, the bead 61 and the support member 40 may be welded together.

[0139] See also Figure 9 In some embodiments, when the support member 40 includes a reinforcing plate 41, the bead 61 is fixedly connected to the reinforcing plate 41. For example, the bead 61 can be adhesively connected to the reinforcing plate 41 via the fourth adhesive layer 54, which facilitates the connection and facilitates assembly of the battery 1001. Of course, the bead 61 can also be welded to the reinforcing plate 41.

[0140] See also Figure 10 In some embodiments, when the support member 40 only includes the first wall 101 of the housing 10, the bead 61 is fixedly connected to the first wall 101. For example, the bead 61 can be adhesively connected to the first wall 101 via the fourth adhesive layer 54, which facilitates the connection and facilitates the assembly of the battery 1001. Of course, the bead 61 can also be welded to the first wall 101.

[0141] See also Figure 11 and Figure 12 In some embodiments, the battery 1001 further includes a reinforcing beam 63 fixedly connected to the outer shell 10, and battery cells 20 are respectively provided on opposite sides of the reinforcing beam 63, and a pressure strip 61 is provided on the side of the reinforcing beam 63 close to the support member 40, the pressure strip 61 is fixedly connected to the reinforcing beam 63, and opposite sides of the pressure strip 61 are respectively fixedly connected to the first end faces 22 of the battery cells 20 on both sides of the reinforcing beam 63.

[0142] The reinforcement beam 63 is a beam-shaped component used to enhance structural strength and rigidity. The reinforcement beam 63 can be made of materials such as metal, plastic, and ceramic.

[0143] A reinforcing beam 63 is provided in the accommodating space 120 and is fixedly connected to the housing 10 to improve the structural strength of the housing 10 , thereby improving the structural strength of the battery 1001 and reducing the main frequency of the battery 1001 .

[0144] The battery cells 20 are respectively arranged on opposite sides of the reinforcing beam 63, and the reinforcing beam 63 can play the role of positioning the battery cells 20 to facilitate the installation of the battery cells 20. In addition, the reinforcing beam 63 can also limit the excessive expansion deformation of the battery cells 20, thereby playing the role of an expansion beam.

[0145] A pressure strip 61 is provided on one side of the reinforcing beam 63 close to the supporting member 40, and the opposite sides of the pressure strip 61 are fixedly connected to the first end faces 22 of the battery cells 20 on both sides of the reinforcing beam 63, respectively, so as to fix the first end faces 22 of the battery cells 20 on both sides of the reinforcing beam 63 into one body, so as to improve the structural strength of the battery 1001, reduce the main frequency, and to a certain extent prevent the battery cells 20 from excessive expansion and deformation, thereby improving the charge and discharge performance of the battery 1001.

[0146] The holding strip 61 is fixedly connected to the reinforcing beam 63 , and the reinforcing beam 63 can be used to hold the holding strip 61 , thereby fixing the battery cell 20 , thereby increasing the structural strength of the battery 1001 and improving the main frequency.

[0147] A reinforcing beam 63 is provided to increase the structural strength of the battery 1001, and the pressure strip 61 is fixedly connected to the reinforcing beam 63 to further stabilize the pressure strip 61. The pressure strip 61 is connected to the battery cell 20, thereby better stabilizing the battery cell 20 and improving the overall structural strength and main frequency of the battery 1001.

[0148] See also Figure 11 In some embodiments, the pressure strip 61 and the reinforcement beam 63 can be connected by welding through heat fusion welding, friction welding, etc., so that the pressure strip 61 and the reinforcement beam 63 are firmly connected.

[0149] See also Figure 12 In some embodiments, the bead 61 and the reinforcement beam 63 may be bonded together, for example, by a fifth adhesive layer 55. The fifth adhesive layer 55 may be a double-sided adhesive or a cured adhesive layer of another adhesive, such as a cured structural adhesive.

[0150] See also Figures 9 to 13 In some embodiments, the pressure strip 61 is fixedly connected to the corresponding first end surface 22 by structural adhesive.

[0151] The pressure strip 61 is connected to the first end face 22 using structural adhesive, which makes the bonding stronger and further improves the main frequency and structural strength of the battery 1001.

[0152] In some embodiments, when the bead 61 is bonded to the corresponding first end face 22 via the third adhesive layer 53 and the bead 61 and the first end face 22 are fixed via structural adhesive, the third adhesive layer 53 is formed after the structural adhesive is cured.

[0153] See also Figures 9 to 13 In some embodiments, the battery 1001 further includes a glue blocking structure 62 for limiting the structural glue to the first end surface 22 .

[0154] The adhesive blocking structure 62 is a structure used to block the adhesive to limit the flow range of the adhesive. The adhesive blocking structure 62 can be used to limit the flow of the structural adhesive, thereby effectively preventing the structural adhesive from flowing to the side of the battery cell 20.

[0155] If the structural adhesive flows to the sides of the battery cell 20, and the structural adhesive is strong after curing, it will limit the normal expansion and deformation of the battery cell 20 during charging and discharging, which in turn affects the life of the battery cell 20. Therefore, the adhesive blocking structure 62 confines the structural adhesive to the first end surface 22, effectively preventing the structural adhesive from flowing to the sides of the battery cell 20, thereby allowing the battery cell 20 to expand and deform normally during charging and discharging.

[0156] A glue blocking structure 62 is provided to limit the structure to the first end face 22 , which can prevent the structural glue from flowing to the side of the battery cell 20 to a certain extent, and prevent the structural glue from restricting the normal expansion of the battery cell 20 during the charging and discharging process to a certain extent, thereby improving the charging and discharging performance of the battery 1001 .

[0157] See also Figure 9 、 Figure 10 and Figure 13 In some embodiments, the glue blocking structure 62 includes a partition 621 between two adjacent battery cells 20 , and the upper end of the partition 621 protrudes from the first end surface 22 .

[0158] The separator 621 is a plate member that is adapted to be disposed between the battery cells 20. The separator 621 can be made of metal, plastic, ceramic, etc.

[0159] The upper end of the separator 621 refers to the upper end of the separator 621 along the height direction Z. The upper end of the separator 621 protrudes from the first end surface 22 , and the separator 621 can block the structural adhesive to reduce the risk of the structural adhesive flowing to the side of the battery cell 20 .

[0160] A separator 621 is provided between the battery cells 20 and is made to protrude from the first end surface 22 . During assembly, uncured structural adhesive flows through the separator 621 , resulting in a simple structure and easy assembly.

[0161] In some embodiments, the separator 621 may be a buffer plate, such as a plate made of rubber, silicone, or other materials, to increase the expansion and deformation space for the battery cell 20 through the separator 621 so that the battery cell 20 can charge and discharge normally.

[0162] In some embodiments, the separator 621 may be an insulating member, such as a plate made of plastic, ceramic, bakelite, or other materials, to achieve good thermal insulation between the battery cells 20 .

[0163] In some embodiments, the partition 621 may also be a thermal insulation board, such as a board made of thermal insulation materials such as plastic and asbestos, which can reduce the impact of heat generated by the battery cell 20 on adjacent battery cells 20 when the battery cell 20 thermally runs away.

[0164] See also Figures 11 to 13 In some embodiments, the glue blocking structure 62 includes a shield 622 , which is disposed on the side of the battery cell 20 close to the pressure strip 61 .

[0165] The shield 622 is a cover structure adapted to cover the side of the battery cell 20. The shape of the shield 622 is adapted to the shape of the side of the battery cell 20. The material of the shield 622 can be plastic, ceramic, bakelite, etc.

[0166] The shield 622 covers the side of the battery cell 20 close to the holding strip 61 , and the shield 622 can prevent the structure from flowing to the side of the battery cell 20 .

[0167] The protective cover 622 is provided on the side of the battery cell 20 , which not only protects the side of the battery cell 20 , but also effectively reduces the risk of the structural adhesive flowing onto the side of the battery cell 20 .

[0168] In some embodiments, the shield 622 can be made of elastic materials such as rubber and silicone, so that the shield 622 can provide the battery cell 20 with space for expansion and deformation, so that the battery cell 20 can charge and discharge normally.

[0169] In some embodiments, the shield 622 can be made of insulating materials such as plastic, ceramic, and bakelite to achieve good thermal insulation between the battery cells 20 .

[0170] In some embodiments, the shield 622 may also be made of heat-insulating materials such as plastic and asbestos, so as to reduce the impact of heat generated by the battery cell 20 on adjacent battery cells 20 when the battery cell 20 experiences thermal runaway.

[0171] In some embodiments, the glue blocking structure 62 may also be a blocking bar disposed on the edge of the first end surface 22 of the battery cell 20 , and the blocking bar is used to limit the structure from flowing toward the side of the battery cell 20 .

[0172] In some embodiments, when a reinforcing beam 63 is provided in the housing 10, a shield 622 may be provided on the side of the battery cell 20 near the reinforcing beam 63 to better protect the battery cell 20 and prevent the structural adhesive from flowing to the side of the battery cell 20. Of course, a partition 621 may also be provided between the reinforcing beam 63 and the adjacent battery cell 20 to prevent the structural adhesive from flowing to the side of the battery cell 20.

[0173] See also Figure 13 In some embodiments, a shield 622 may be provided on the side of the battery cells 20 adjacent to the reinforcing beam 63, while a partition 621 may be provided between the other battery cells 20. Alternatively, the partition 621 may be provided between some of the battery cells 20, while the shield 622 may be provided on the adjacent sides of another portion of the battery cells 20.

[0174] See also Figure 12According to some embodiments of the present application, the present application provides a battery 1001, including a housing 10, a battery cell 20, a busbar 30, a support member 40, and a pressure strip 61. A storage space 120 is provided in the housing 10, and the battery cell 20 is installed in the storage space 120. The battery cell 20 has a first end surface 22 along the height direction Z. The first end surface 22 of the battery cell 20 is provided with an electrode terminal 21. The busbar 30 is fixedly connected to the electrode terminal 21. The support member 40 includes a reinforcing plate 41 and a first wall 101. The busbar 30 is fixedly connected to the reinforcing plate 41 by structural adhesive, and the reinforcing plate 41 is fixedly connected to the first wall 101 by structural adhesive. The opposite sides of the pressure strip 61 are respectively fixedly connected to the first end surfaces 22 of two adjacent battery cells 20. A reinforcing beam 63 is provided within the accommodating space 120. Battery cells 20 are positioned on opposite sides of the reinforcing beam 63. A holding strip 61 on the side of the reinforcing beam 63 near the support member 40 is fixedly connected to the reinforcing beam 63. Opposite sides of the holding strip 61 are fixedly connected to the first end surfaces 22 of the battery cells 20 on either side of the reinforcing beam 63. This structure secures the battery cells 20, busbar 30, holding strip 61, reinforcing beam 63, reinforcing plate 41, and outer casing 10 together, enhancing the structural strength and main frequency of the battery 1001.

[0175] According to some embodiments of the present application, the present application also provides an electrical device, comprising the battery described in any of the above solutions.

[0176] The power-consuming device may be any of the aforementioned devices or systems using batteries.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery, characterized in that: include: a housing, wherein a receiving space is provided in the housing; a plurality of battery cells, each of which is provided with an electrode terminal, and each of which is installed in the accommodation space; a plurality of busbars, each of the electrode terminals being fixedly connected to the busbar; The supporting member is fixedly connected to the plurality of busbars.

2. The battery according to claim 1, wherein The supporting member includes a reinforcing plate, and the plurality of busbars are fixedly connected to the reinforcing plate.

3. The battery according to claim 1, wherein The housing includes a first wall, the first wall forming at least a portion of the support structure, and the busbar is fixedly connected to the first wall.

4. The battery according to claim 3, wherein The supporting member further includes a reinforcing plate, the busbar is fixedly connected to the reinforcing plate, and the reinforcing plate is fixedly connected to the first wall.

5. The battery according to claim 4, wherein The reinforcing plate is bonded to the first wall.

6. The battery according to claim 2, 4 or 5, characterized in that The reinforcing plate includes an insulating plate.

7. The battery according to any one of claims 1 to 6, characterized in that The supporting member is bonded to the busbar.

8. The battery according to any one of claims 1 to 7, wherein The battery cell has a first end surface along the height direction, the electrode terminal is provided on the first end surface, and the battery further includes a pressure strip, opposite sides of which are respectively fixedly connected to the first end surfaces of two adjacent battery cells.

9. The battery according to claim 8, wherein The pressure strip is fixedly connected to the supporting member.

10. The battery according to claim 8 or 9, characterized in that The battery further comprises a reinforcing beam, the battery cells are respectively provided on opposite sides of the reinforcing beam, the reinforcing beam is fixedly connected to the shell, and the pressure strip is provided on one side of the reinforcing beam close to the supporting member, and the pressure strip is fixedly connected to the reinforcing beam.

11. The battery according to any one of claims 8 to 10, characterized in that The pressure strip is fixedly connected to the corresponding first end surface by structural adhesive.

12. The battery according to claim 11, wherein The battery further includes a glue blocking structure for limiting the structural glue to the first end surface.

13. The battery according to claim 12, wherein The glue blocking structure includes a partition plate provided between two adjacent battery cells, and an upper end of the partition plate protrudes from the first end surface.

14. The battery according to claim 12, wherein The glue blocking structure includes a shield, which is arranged on the side of the battery cell close to the pressure strip.

15. An electrical device, characterized in that: Comprising the battery according to any one of claims 1 to 14.

Images