Battery and electrical apparatus

Abstract

A battery (100) and an electrical apparatus. The battery (100) comprises a battery cell (20), a first busbar (30) and a wire harness isolation plate (40); the battery cell (20) comprises a casing (21) and a first electrode terminal (25); the casing (21) is provided with a first wall (212); the first electrode terminal (25) is provided on the first wall (212); the first busbar (30) is arranged on the outer side of the first wall (212), and the first busbar (30) is electrically connected to the first electrode terminal (25); in the thickness direction of the first wall (212), at least part of the wire harness isolation plate (40) is arranged between the first busbar (30) and the first wall (212); the outer surface of the first wall (212) is an exposed surface.

Description

Battery and electric device TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery and an electric device. BACKGROUND

[0002] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages. For electric vehicles, battery technology is an important factor for their development.

[0003] Batteries are widely used in portable electronic devices, electric vehicles, power tools, unmanned aerial vehicles, energy storage devices and other fields. How to reduce the cost of the battery is a technical problem that needs to be solved in battery technology.

[0004] SUMMARY

[0005] The present application provides a battery and an electric device, which can reduce the cost of the battery.

[0006] The present application is achieved by the following technical solutions:

[0007] In a first aspect, the present application provides a battery, comprising a battery monomer, a first busbar and a wire harness isolation plate. The battery monomer comprises a shell and a first electrode terminal. The shell has a first wall, and the first electrode terminal is arranged on the first wall. The first busbar is arranged outside the first wall, and the first busbar is electrically connected with the first electrode terminal. At least a part of the wire harness isolation plate is arranged between the first busbar and the first wall along the thickness direction of the first wall. The outer surface of the first wall is a bare surface.

[0008] According to the battery of the present application, the outer surface of the first wall is a bare surface, the insulating patch on the outer surface of the first wall is cancelled, and at least a part of the wire harness isolation plate is arranged between the first busbar and the first wall. Therefore, on the one hand, the material cost of the battery is reduced, and the production efficiency of the battery is improved. On the other hand, the wire harness isolation plate can insulate and isolate the outer surface of the first wall, and the probability of contact between the first busbar and the first wall is reduced.

[0009] According to some embodiments of the present application, the wire harness isolation plate is provided with a first through hole, and the first busbar is exposed from the first through hole to be connected with the first electrode terminal.

[0010] In the above scheme, the first busbar can pass through the first through hole to contact the first electrode terminal, so as to realize the electrical connection between the two; or the first electrode terminal can pass through the first through hole to contact the first busbar, so as to realize the electrical connection between the two. In this way, the first electrode terminal and the first busbar are facilitated to contact.

[0011] According to some embodiments of the present application, the battery cell further comprises a first insulation member, the first electrode terminal is insulatedly mounted to the first wall through the first insulation member, at least a portion of the first insulation member is exposed to the outer surface of the first wall; along the thickness direction of the first wall, the projection of the wire harness isolation plate and the projection of the first insulation member have an overlapping area.

[0012] In the above scheme, the first confluence member is at most in contact with the first insulation member, and will not be in contact with the outer surface of the first wall, thereby greatly reducing the probability of the first confluence member being in contact with the first wall through the first through hole, and reducing the probability of the first wall being electrified.

[0013] According to some embodiments of the present application, the first insulation member is arranged around the first electrode terminal, and the diameter of the first through hole is smaller than the outer diameter of the first insulation member.

[0014] In the above scheme, the first confluence member is at most in contact with the first insulation member through the first through hole, and will not be in contact with the first wall through the first through hole, thereby reducing the probability of the first wall being electrified.

[0015] According to some embodiments of the present application, the overlapping area is an annular area around the first electrode terminal.

[0016] In the above scheme, the first confluence member can only be in contact with the first electrode terminal and at most in contact with the first insulation member, thereby further reducing the probability of the first confluence member being in contact with the first wall and reducing the probability of the first wall being electrified.

[0017] According to some embodiments of the present application, along the radial direction of the first electrode terminal, the width of the annular area is A, which satisfies: 0.3mm≤A≤10mm.

[0018] In the above scheme, on the one hand, it is ensured that the first insulation member and the wire harness isolation plate have a large enough overlapping area in the thickness direction of the first wall, and on the other hand, part of the wire harness isolation plate will not extend into the space between the first confluence member and the first electrode terminal, thereby reducing the influence of the wire harness isolation plate on the connection effect between the first confluence member and the first electrode terminal.

[0019] According to some embodiments of the present application, along the thickness direction of the first wall, the first insulation member is in contact with the wire harness isolation plate.

[0020] In the above scheme, along the thickness direction of the first wall, the wire harness isolation plate can be overlapped with the first insulation member. The first confluence member will not be in contact with the first wall through the first through hole, thereby reducing the probability of the first wall being electrified.

[0021] According to some embodiments of the present application, the first insulating member is in interference fit with the wire harness isolation plate along the thickness direction of the first wall.

[0022] In the above scheme, after the wire harness isolation plate is clamped between the first busbar and the first insulating member, the wire harness isolation plate is compressed, and the elastic force of the wire harness isolation plate can act on the first busbar and the first insulating member. Thus, the gap between the wire harness isolation plate and the first busbar and the gap between the wire harness isolation plate and the first insulating member are reduced, and the wire harness isolation plate can be more firmly installed between the first busbar and the first insulating member.

[0023] According to some embodiments of the present application, the battery monomer further comprises a first connecting member fixed to the first wall, and the first connecting member fixes the first electrode terminal to the first wall through the first insulating member. In the above scheme, the first electrode terminal can be more firmly installed with the first wall.

[0024] According to some embodiments of the present application, the wire harness isolation plate is fixedly connected to the first busbar, and the wire harness isolation plate is spaced apart from the outer surface of the first wall.

[0025] In the above scheme, when the battery monomer expands and moves, the wire harness isolation plate will not rub against the first wall due to contact with the first wall, improving the service life of the wire harness isolation plate, and the wire harness isolation plate is not easily worn and is more durable.

[0026] According to some embodiments of the present application, the battery monomers are a plurality of battery monomers, and the wire harness isolation plates are a plurality of wire harness isolation plates, each of the wire harness isolation plates being arranged outside the first wall of a corresponding battery monomer.

[0027] In the above scheme, the arrangement of the wire harness isolation plates is more flexible, and when the wire harness isolation plate outside the first wall of one battery monomer is damaged, only the damaged wire harness isolation plate needs to be replaced, greatly reducing the maintenance cost of the battery.

[0028] According to some embodiments of the present application, the battery monomers are a plurality of battery monomers, and the wire harness isolation plates are at least one wire harness isolation plate, each of the wire harness isolation plates being arranged outside the first wall of a corresponding battery monomer.

[0029] In the above scheme, one wire harness isolation plate corresponds to the first walls of a plurality of battery monomers, thereby greatly improving the production efficiency of the battery during the production process of the battery.

[0030] In a second aspect, the embodiments of the present application provide a power consumption device comprising the battery of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0032] Fig. 1 is a schematic diagram of a vehicle according to an embodiment of the present application;

[0033] Fig. 2 is an exploded view of a battery according to an embodiment of the present application;

[0034] Fig. 3 is an exploded view of a battery cell according to an embodiment of the present application;

[0035] Fig. 4 is an exploded view of a battery according to another embodiment of the present application;

[0036] Fig. 5 is a schematic diagram of a wiring harness isolation plate and a first wall according to an embodiment of the present application;

[0037] Fig. 6 is a top view of a battery according to another embodiment of the present application;

[0038] Fig. 7 is a sectional view of Fig. 6 along the direction of A-A;

[0039] Fig. 8 is an enlarged view of the portion B shown in Fig. 7.

[0040] Fig. 1 is a schematic diagram of a vehicle according to an embodiment of the present application; DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor under the premise of not making creative labor.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used in disclosing the application, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms used in the description of the present application are used for illustrative purposes only and are not intended to limit the scope of the application. The summary of the application and its teachings do not purport to be exhaustive or to be limited to a single embodiment, as the specialty of the application is described with reference to the appended drawings and figures.

[0043] Reference throughout this application to "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is expressly understood that the described embodiments of the application are merely example and that one of ordinary skill in the art would keep in mind that an embodiment can include stated features, structures, or characteristics of another without reciting every combination of these.

[0044] In the description of the application, it is necessary to note that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection", "attaching" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0045] The term "and / or" in the application is only to describe the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0046] "Multiple" appearing in the application refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0047] In some embodiments, the battery can be a battery module, and when there are multiple battery monomers, the multiple battery monomers are arranged and fixed to form a battery module.

[0048] In some embodiments, the battery can be a battery pack, and the battery pack includes a box body and a battery monomer, and the battery monomer or the battery module is contained in the box body.

[0049] In some embodiments, the box can be part of a chassis structure of a vehicle. For example, portions of the box can be part of a floor of the vehicle, or portions of the box can be part of cross members and longitudinal members of the vehicle.

[0050] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0051] In embodiments of the present application, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging.

[0052] The battery cell can be, but is not limited to, a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc.

[0053] In some embodiments, the battery cell can include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), or an aluminum-plastic film, etc.

[0054] In some embodiments, the housing includes an end cap and a shell, the shell is provided with an opening, and the end cap closes the opening to form a sealed space for containing the electrode assembly and the electrolyte. The shell can be provided with one or more openings. The end cap can also be provided with one or more openings.

[0055] In some embodiments, at least one electrode terminal is provided on the housing, and the electrode terminal is electrically connected to the tab of the electrode assembly. The electrode terminal can be directly connected to the tab, or indirectly connected to the tab through an adapter. The electrode terminal can be provided on the end cap or on the shell.

[0056] In some embodiments, an explosion-proof valve is provided on the housing. The explosion-proof valve is used to release the internal pressure of the battery cell.

[0057] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or other shapes of battery cells, the prismatic battery cell includes a square battery cell, a blade battery cell, a multi-prismatic battery cell, such as a hexagonal battery cell, etc. The embodiments of the present application are not particularly limited.

[0058] The battery referred to in the embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity.

[0059] In some embodiments, the battery can be a battery module, and when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0060] In some embodiments, the battery can be a battery pack, the battery pack comprising a box body and battery cells, the battery cells or battery modules being accommodated in the box body.

[0061] In some embodiments, the box body can be part of a chassis structure of the vehicle. For example, part of the box body can be at least part of a floor of the vehicle, or part of the box body can be at least part of a cross beam and a longitudinal beam of the vehicle.

[0062] In some embodiments, the battery can be an energy storage device. The energy storage device comprises an energy storage container, an energy storage cabinet, etc.

[0063] The battery has the advantages of high energy density, small environmental pollution, large power density, long service life, wide adaptation range, and small self-discharge coefficient, and is an important part of the development of new energy at present.

[0064] The development of battery technology needs to consider various design factors, such as performance parameters such as energy density, discharge capacity, and charge / discharge rate. In addition, the assembly efficiency of the battery also needs to be considered.

[0065] The battery cell disclosed in the embodiments of the present application can be used in, but is not limited to, an electric device such as a vehicle, a ship, or an aircraft. A power supply system of the electric device can be composed of the battery cell and the battery disclosed in the present application.

[0066] The embodiments of the present application provide an electric device using a battery cell as a power supply. The electric device can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric vehicle, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric vehicle toy, an electric ship toy, and an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0067] The following embodiments are described with reference to a vehicle 1000 as an example of an electric device of an embodiment of the present application for convenience of description.

[0068] Please refer to FIG. 1, which is a schematic diagram of a vehicle provided by the first embodiment of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric vehicle, a hybrid electric vehicle, or a range extended vehicle, etc. The vehicle 1000 is internally provided with a battery 100, which can be arranged at the bottom, the head, or the tail of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000, for example, the battery 100 can be used as an operating power supply of the vehicle 1000, which is used for the circuit system of the vehicle 1000, such as the power demand for starting, navigation, and operation of the vehicle 1000.

[0069] The vehicle 1000 can further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for power requirements of the vehicle 1000 during startup, navigation, and driving.

[0070] In some embodiments of the present application, the battery 100 can not only serve as a power source for the operation of the vehicle 1000, but also serve 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.

[0071] Referring to FIG. 2, FIG. 2 is an exploded view of the battery according to the first embodiment of the present application. The battery 100 includes a box body 10 and a battery cell 20, and the battery cell 20 is accommodated in the box body 10. The box body 10 is configured to provide an accommodation space for the battery cell 20, and the box body 10 can have various structures. In some embodiments, the box body 10 can include a first sub-box body 11 and a second sub-box body 12, and the first sub-box body 11 and the second sub-box body 12 are overlapped with each other, and together define an accommodation space for accommodating the battery cell 20. The second sub-box body 12 can be a hollow structure with one end open, and the first sub-box body 11 can be a plate-like structure, and the first sub-box body 11 is overlapped with the open side of the second sub-box body 12 to define the accommodation space together with the second sub-box body 12; the first sub-box body 11 and the second sub-box body 12 can also be hollow structures with one side open, and the open side of the first sub-box body 11 is overlapped with the open side of the second sub-box body 12.

[0072] In the battery 100, the battery cell 20 can be multiple, and the multiple battery cells 20 can be connected in series, in parallel, or in a mixed connection, where the mixed connection means that the multiple battery cells 20 are connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel, or in a mixed connection, and then the whole of the multiple battery cells 20 is accommodated in the box body 10; of course, the battery 100 can also be that the multiple battery cells 20 are first connected in series, in parallel, or in a mixed connection to form a battery module, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and then the whole is accommodated in the box body 10. The battery 100 can further include other structures, for example, the battery 100 can further include a current combiner for realizing the electrical connection between the multiple battery cells 20.

[0073] The battery cell 20 can be a secondary battery or a primary battery; the battery cell 20 can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto.

[0074] Referring to FIG. 3, FIG. 3 is an exploded view of a battery cell according to some embodiments of the present application. As shown in FIG. 3, the battery cell 20 includes a housing 21, an electrode assembly 22, and an electrode terminal (e.g., a first electrode terminal 25). The housing 21 includes a shell 211 having an opening and an end cap (a first wall 212) that closes the opening to seal an internal environment of the battery cell 20 from an external environment.

[0075] The shell 211 is a component that cooperates with the end cap to form the internal environment of the battery cell 20, which can be configured to house the electrode assembly 22, electrolyte, and other components. The shell 211 and the end cap can be separate components. The shell 211 can be of various shapes and sizes. In particular, the shape of the shell 211 can be determined according to the specific shape and size of the electrode assembly 22. The shell 211 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc.

[0076] The end cap refers to a component that covers the opening of the shell 211 to seal the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap can be adapted to the shape of the shell 211 to cooperate with the shell 211. Optionally, the end cap can be made of a material having a certain hardness and strength (e.g., aluminum alloy), so that the end cap is less likely to deform when subjected to a pressing impact, allowing the battery cell 20 to have higher structural strength and improved reliability. The end cap can be provided with functional components such as electrode terminals. The electrode terminals can be configured to electrically connect with the electrode assembly 22 for outputting or inputting electrical energy of the battery cell 20. The end cap can also be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which are not specifically limited in the embodiments of the present application. In some embodiments, an insulating structure can also be provided on the inner side of the end cap, which can be configured to isolate the electrical connection components in the shell 211 from the end cap to reduce the risk of short circuit. For example, the insulating structure can be made of plastic, rubber, etc.

[0077] The electrode assembly 22 is a component in which electrochemical reactions occur in the battery cell 20. One or more electrode assemblies 22 can be contained in the shell 211. The electrode assembly 22 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and generally has a separator film disposed between the positive electrode sheet and the negative electrode sheet to separate the positive electrode sheet and the negative electrode sheet to avoid internal short circuit. The positive electrode sheet and the negative electrode sheet each have a portion with active material constituting a main body of the electrode assembly, and each have a portion without active material constituting a tab. The positive electrode tab and the negative electrode tab can be located together at one end of the main body or at two ends of the main body, respectively. During charging and discharging of the battery, the positive active material and the negative active material react with the electrolyte, and the tabs are connected to the electrode terminals to form a current loop.

[0078] In the related art, the outer surface of the end cover of the battery monomer is generally provided with a top patch, so as to insulate and isolate the end cover; at the same time, the battery also includes a wire harness isolation plate, which can be arranged at the outer end of the top patch. The wire harness isolation plate is generally also an insulating piece and can be used to install the gasket and for the sampling wire harness to pass through.

[0079] Therefore, the outer side of the end cover of the battery monomer is provided with two layers of insulation structures, one is a top patch and the other is a wire harness isolation plate. The insulation of the outer surface of the end cover is completed by two plate pieces, the top patch and the wire harness isolation plate, so that the material cost of the battery is relatively high, and the attachment of the top patch and the installation of the wire harness isolation plate need respective processes to be completed, so that the production efficiency is relatively low.

[0080] Therefore, the application provides a battery, the production cost of which can be reduced.

[0081] The battery 100 according to the embodiments of the application can include a battery monomer 20, a first bus piece 30 and a wire harness isolation plate 40.

[0082] As shown in FIGS. 3-5, the battery monomer 20 includes an outer shell 21, which can define a containing space, and an electrode assembly 22 and an electrolyte can be encapsulated in the containing space defined by the outer shell 21.

[0083] The outer shell 21 can be a metal shell, a plastic shell or a composite metal shell, etc.

[0084] In the application, the outer shell 21 includes a first wall 212, and a first electrode terminal 25 is arranged on the first wall 212. The first wall 212 can be provided with an opening, and the first electrode terminal 25 can pass through the opening to be electrically connected with the electrode assembly 22. For example, the first electrode terminal 25 can be electrically connected with the tab of the electrode assembly 22 through an adapter.

[0085] The first electrode terminal 25 and the first wall 212 can be insulated and isolated by an insulating component.

[0086] The outer shell 21 can include an end cover and a shell body 211, the shell body 211 is provided with an opening, and the end cover is fixedly connected with the shell body 211 and is used to close the opening. In this way, the end cover and the shell body 211 form a sealed space containing the electrode assembly 22 and the electrolyte and the like.

[0087] The shell body 211 can be provided with one or more openings, and correspondingly, the end cover can also be one or more.

[0088] The first wall 212 in the embodiments of the application can be the end cover described above. Of course, the first wall 212 can also be a wall part of the shell body 211, for example, it can be a wall part of the shell body 211 opposite to the end cover.

[0089] The battery further includes a first busbar 30 , which can realize electrical connection of the plurality of battery cells 20 . In the present application, the first busbar 30 is disposed on the outer side of the first wall 212 .

[0090] It should be noted that the outer side of the first wall 212 refers to the side of the first wall 212 facing away from the inner space of the battery cell 20 .

[0091] The first current bus 30 is electrically connected to the first electrode terminal 25 , so that current can flow through the electrode assembly 22 and the first electrode terminal 25 to reach the first current bus 30 .

[0092] The wire harness isolation plate 40 can be used for installing and fixing the sampling wire harness, and can also be used for installing and positioning the first busbar 30 .

[0093] In some embodiments, the wire harness isolation plate 40 also has the functions of guiding and exhausting air.

[0094] At least a portion of the harness isolating plate 40 is disposed between the first busbar 30 and the first wall 212 along the thickness direction of the first wall 212. Thus, the harness isolating plate 40 separates the first busbar 30 from the first wall 212, reducing the likelihood of contact between the first busbar 30 and the first wall 212, and reducing the likelihood of the first wall 212 becoming electrically charged due to contact between the first busbar 30 and the first wall 212.

[0095] In the battery of the embodiment of the present application, the outer surface of the first wall 212 is an exposed surface. In other words, the outer surface of the first wall 212 is no longer blocked by the insulating patch, and the outer surface of the first wall 212 is directly exposed.

[0096] At least a portion of the harness isolating plate 40 is disposed between the first busbar 30 and the first wall 212 along the thickness direction of the first wall 212. Therefore, the harness isolating plate 40 can insulate the first wall 212 from the first busbar 30 or other components.

[0097] According to the battery of the embodiment of the present application, the outer surface of the first wall 212 is an exposed surface, the insulating patch on the outer surface of the first wall 212 is removed, and at least a portion of the wiring harness isolation plate 40 is arranged between the first bus 30 and the first wall 212; therefore, on the one hand, the material cost of the battery 100 is reduced and the production efficiency of the battery 100 is improved; on the other hand, the wiring harness isolation plate 40 can insulate the outer surface of the first wall 212, thereby reducing the probability of contact between the first bus 30 and the first wall 212.

[0098] In some embodiments of the present application, as shown in FIG. 4 , a first through hole 101 is provided on the wiring harness isolation plate 40 , and the first bus 30 is exposed through the first through hole 101 to be connected to the first electrode terminal 25 .

[0099] The first busbar 30 can pass through the first through hole 101 to contact the first electrode terminal 25, so as to realize the electrical connection of the two; or the first electrode terminal 25 can pass through the first through hole 101 to contact the first busbar 30, so as to realize the electrical connection of the two.

[0100] It can be understood that the shape of the first through hole 101 can be the same as or similar to the shape of the cross section of the first electrode terminal 25, and the cross-sectional area of the first through hole 101 is greater than or equal to the size of the cross section of the first electrode terminal 25. Thus, the first electrode terminal 25 and the first busbar 30 are facilitated to contact.

[0101] According to some embodiments of the present application, as shown in FIGS. 5 and 8, the battery cell 20 further comprises a first insulating piece 26, and the first electrode terminal 25 is insulatedly installed on the first wall 212 through the first insulating piece 26.

[0102] The first electrode terminal 25 and the first wall 212 can be insulatedly separated by the first insulating piece 26, and the first electrode terminal 25 and the first wall 212 cannot realize electrical connection.

[0103] At least a part of the first insulating piece 26 is exposed to the outer surface of the first wall 212, and along the thickness direction of the first wall 212, the projection of the wire harness isolation plate 40 and the projection of the first insulating piece 26 have an overlapping area 102.

[0104] Thus, the first busbar 30 at most contacts the first insulating piece 26, and it will not contact the outer surface of the first wall 212, thereby greatly reducing the probability that the first busbar 30 passes through the first through hole 101 to contact the first wall 212, and reducing the probability that the first wall 212 is electrified.

[0105] It should be noted that along the thickness direction of the first wall 212, the projection of the wire harness isolation plate 40 and the projection of the outermost part of the first insulating piece 26 have an overlapping area 102. Or, along the thickness direction of the first wall 212, the projection of the wire harness isolation plate 40 and the projection of the part of the first insulating piece 26 located outside the first wall 212 have an overlapping area 102.

[0106] In some embodiments of the present application, the first insulating piece 26 is arranged around the first electrode terminal 25, and the diameter of the first through hole 101 is smaller than the outer diameter of the first insulating piece 26.

[0107] Thus, the first busbar 30 at most contacts the first insulating piece 26 through the first through hole 101, and the first busbar 30 will not contact the first wall 212 through the first through hole 101, thereby reducing the probability that the first wall 212 is electrified.

[0108] It can be understood that the diameter of the first through hole 101 is greater than the outer diameter of the portion of the first electrode terminal 25 in contact with the first bus member 30. Thus, the wire harness isolation plate 40 does not extend to the connecting surface of the first electrode terminal 25 and the first bus member 30, and does not affect the connection strength and connection effect between the first electrode terminal 25 and the first bus member 30.

[0109] According to some embodiments of the present application, as shown in FIG. 5, along the thickness direction of the first wall 212, the projection of the wire harness isolation plate 40 and the projection of the first insulating member 26 have an overlapping area 102, which is an annular area surrounding the first electrode terminal 25.

[0110] Thus, the first bus member 30 can only contact the first electrode terminal 25 and at most the first insulating member 26, further reducing the probability of the first bus member 30 contacting the first wall 212 and reducing the probability of the first wall 212 being electrified.

[0111] According to some embodiments of the present application, as shown in FIG. 8, along the radial direction of the first electrode terminal 25, the width of the annular area is A, which satisfies: 0.3mm≤A≤10mm.

[0112] For example, the width of the annular area can be 0.3mm, 1mm, 1.7mm, 2.5mm, 3.2mm, 4mm, 4.7mm, 5.4mm, 6.1mm, 6.8mm, 7.5mm, 8.2mm, 9.9mm or 10mm.

[0113] It should be noted that the width values of the annular area described above are only some specific examples of the present application, and any width of the annular area falling within the above range is within the protection scope of the present application.

[0114] Since the width of the annular area satisfies the above range, on the one hand, it ensures that the first insulating member 26 and the wire harness isolation plate 40 have a sufficiently large overlapping area 102 in the thickness direction of the first wall 212, and on the other hand, part of the wire harness isolation plate 40 does not extend into the connection between the first bus member 30 and the first electrode terminal 25, reducing the influence of the wire harness isolation plate 40 on the connection effect between the first bus member 30 and the first electrode terminal 25.

[0115] In some embodiments of the present application, along the thickness direction of the first wall 212, the first insulating member 26 is in contact with the wire harness isolation plate 40.

[0116] Thus, it is further ensured that along the thickness direction of the first wall 212, the wire harness isolation plate 40 can be overlapped with the first insulating member 26. The first bus member 30 does not contact the first wall 212 through the first through hole 101, reducing the probability of the first wall 212 being electrified.

[0117] According to some embodiments of the present application, the first insulation member 26 is interference-fitted with the wire harness isolation plate 40 along the thickness direction of the first wall 212.

[0118] For example, the wire harness isolation plate 40 can have a certain elasticity, and when the wire harness isolation plate 40 is not clamped between the first busbar 30 and the first insulation member 26, the thickness of the wire harness isolation plate 40 is greater than the gap between the first busbar 30 and the first insulation member 26.

[0119] After the wire harness isolation plate 40 is clamped between the first busbar 30 and the first insulation member 26, the wire harness isolation plate 40 is compressed, and the elastic force of the wire harness isolation plate 40 can act on the first busbar 30 and the first insulation member 26. Thus, the gap between the wire harness isolation plate 40 and the first busbar 30 and the gap between the wire harness isolation plate 40 and the first insulation member 26 are reduced, and the wire harness isolation plate 40 can be more firmly installed between the first busbar 30 and the first insulation member 26.

[0120] In some embodiments of the present application, as shown in FIG. 8, the battery monomer 20 further includes a first connecting member 27 fixed to the first wall 212, and the first connecting member 27 fixes the first electrode terminal 25 to the first wall 212 through the first insulation member 26. Thus, the first electrode terminal 25 can be more firmly installed on the first wall 212.

[0121] For example, the first connecting member 27 can be a welding ring, which can be welded and fixed to the first wall 212, and the welding ring is connected with the first insulation member 26, the first insulation member 26 is connected with the first electrode terminal 25, and the welding ring is pressed against the first insulation member 26, and then the first insulation member 26 is pressed against the first wall 212 under force.

[0122] In some embodiments of the present application, as shown in FIG. 8, the wire harness isolation plate 40 is fixedly connected to the first busbar 30, for example, the wire harness isolation plate 40 can be fixedly connected to the first busbar 30 by adhesion. Thus, the installation stability of the wire harness isolation plate 40 is ensured.

[0123] The wire harness isolation plate 40 is spaced apart from the outer surface of the first wall 212, so that when the battery monomer 20 expands and moves, the wire harness isolation plate 40 will not rub against the first wall 212 due to contact with the first wall 212, thereby improving the service life of the wire harness isolation plate 40, and the wire harness isolation plate 40 is not easily abraded, and the wire harness isolation plate 40 is more durable.

[0124] According to some embodiments of the present application, there are a plurality of battery monomers 20, and there are a plurality of wire harness isolation plates 40, each wire harness isolation plate 40 is arranged on the outer side of the first wall 212 of the corresponding battery monomer 20.

[0125] That is, the number of the wire harness isolation plates 40 is equal to the number of the battery monomers 20, and each of the wire harness isolation plates 40 corresponds to one of the battery monomers 20. The outer side of the first wall 212 of each of the battery monomers 20 is provided with the corresponding wire harness isolation plate 40.

[0126] Therefore, the arrangement of the wire harness isolation plates 40 is more flexible, and when the wire harness isolation plate 40 on the outer side of the first wall 212 of one of the battery monomers 20 is damaged, only the damaged wire harness isolation plate 40 needs to be replaced, which greatly reduces the maintenance cost of the battery.

[0127] In some embodiments of the present application, the number of the battery monomers 20 is plural, and the number of the wire harness isolation plates 40 is at least one, and each of the wire harness isolation plates 40 is arranged on the outer surface of the first wall 212 of the plurality of the battery monomers 20.

[0128] Therefore, one wire harness isolation plate 40 corresponds to the first walls 212 of a plurality of battery monomers 20, which greatly improves the production efficiency of the battery during the production process.

[0129] The power consuming device according to the embodiments of the present application is described briefly as follows.

[0130] The power consuming device according to the embodiments of the present application includes the battery 100 described above, and since the power consuming device according to the embodiments of the present application is provided with the battery 100 described above, the production cost of the battery is reduced, and the production efficiency is improved.

[0131] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized in that: include: A battery cell includes a housing and a first electrode terminal, wherein the housing has a first wall and the first electrode terminal is disposed on the first wall; a first busbar, disposed on an outer side of the first wall, the first busbar being electrically connected to the first electrode terminal; a wiring harness isolating plate, at least a portion of which is disposed between the first busbar and the first wall along a thickness direction of the first wall; Wherein, the outer surface of the first wall is an exposed surface.

2. The battery according to claim 1, characterized in that The harness isolating plate is provided with a first through-hole, and the first bus bar is exposed through the first through-hole to be connected to the first electrode terminal.

3. The battery according to claim 2, characterized in that The battery cell further includes a first insulating member, the first electrode terminal is insulated and mounted on the first wall via the first insulating member, and at least a portion of the first insulating member is exposed on the outer surface of the first wall; Along the thickness direction of the first wall, a projection of the harness separator and a projection of the first insulating member have an overlapping area.

4. The battery according to claim 3, characterized in that The first insulating member is disposed around the first electrode terminal, and a diameter of the first through hole is smaller than an outer diameter of the first insulating member.

5. The battery according to claim 3 or 4, characterized in that The overlapping area is an annular area surrounding the first electrode terminal.

6. The battery according to claim 5, characterized in that Along the radial direction of the first electrode terminal, the width of the annular region is A, which satisfies: 0.3 mm ≤ A ≤ 10 mm.

7. The battery according to any one of claims 3 to 6, characterized in that The first insulating member is in contact with the harness separator along a thickness direction of the first wall.

8. The battery according to claim 7, characterized in that The first insulating member is interference-fitted with the wire harness isolating plate along a thickness direction of the first wall.

9. The battery according to any one of claims 3 to 8, characterized in that The battery cell further includes a first connector fixed to the first wall. The first connector fixes the first electrode terminal to the first wall via the first insulating member.

10. The battery according to any one of claims 1 to 9, characterized in that The wire harness isolation plate is fixedly connected to the first busbar, and the wire harness isolation plate is spaced apart from an outer surface of the first wall.

11. The battery according to any one of claims 1 to 10, characterized in that There are a plurality of battery cells and a plurality of wiring harness isolation plates, and each wiring harness isolation plate is disposed on the outer side of the first wall of the corresponding battery cell.

12. The battery according to any one of claims 1 to 11, characterized in that There are a plurality of battery cells, and there is at least one wiring harness isolation plate. Each wiring harness isolation plate is disposed outside the first walls of the plurality of battery cells.

13. An electrical device, characterized in that: The battery comprising any one of claims 1 to 12, wherein the battery is used to provide electrical energy.

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