WO2025081804A1 - 电池和用电设备 - Google Patents

电池和用电设备 Download PDF

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Publication number
WO2025081804A1
WO2025081804A1 PCT/CN2024/093728 CN2024093728W WO2025081804A1 WO 2025081804 A1 WO2025081804 A1 WO 2025081804A1 CN 2024093728 W CN2024093728 W CN 2024093728W WO 2025081804 A1 WO2025081804 A1 WO 2025081804A1
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WO
WIPO (PCT)
Prior art keywords
component
battery
limiting portion
limiting
along
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/093728
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English (en)
French (fr)
Inventor
苗慧敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of WO2025081804A1 publication Critical patent/WO2025081804A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of batteries, and more specifically, to a battery and an electrical device.
  • the embodiments of the present application provide a battery and an electrical device, which can improve the structural stability of the battery.
  • a battery comprising: a first component; a second component; a limiting component, wherein the limiting component is located on one side of the first component and the second component along a first direction, the limiting component comprises a first limiting portion and a second limiting portion connected to each other, the first limiting portion is fixedly connected to the first component along the first direction, and the second limiting portion is used to limit the movement of the second component along the first direction.
  • the battery of the embodiment of the present application includes a limiting component, which includes a first limiting portion and a second limiting portion that are connected.
  • the first limiting portion is fixedly connected to the first component of the battery along a first direction, so that the limiting component can be relatively fixed to the first component along the first direction, that is, the movement of the limiting component and the first component along the first direction can be limited; further, the second limiting portion connected to the first limiting portion can be used to limit the movement of the second component of the battery along the first direction.
  • the limiting component has a simple structure and is easy to implement, which reduces the influence of the limiting component on the processing and assembly efficiency of the battery.
  • the first limiting portion is detachably connected to the first component to facilitate disassembly and assembly.
  • the first position-limiting portion includes a protruding structure protruding toward the first component
  • the first component includes a groove structure opening toward the first position-limiting portion
  • the protruding structure is accommodated in the groove structure and has an interference fit with the groove structure.
  • the size of at least a portion of the protrusion structure along the second direction gradually decreases, and the second direction is perpendicular to the first direction. In this way, when the protrusion structure is accommodated in the groove structure, the protrusion structure can be interference-fitted with the groove structure to achieve fixation between the first limiting portion and the first component along the first direction.
  • the difference between the maximum dimension and the minimum dimension of the protrusion structure along the second direction is less than or equal to 1 mm, so that the protrusion structure can be quickly and smoothly accommodated in the groove structure.
  • the protrusion structure is a hollow structure, which is easy to process and can reduce Reducing the weight of the protruding structure, that is, reducing the weight of the limiting component, can further reduce the weight of the battery.
  • the second limiting portion and the first limiting portion form a step structure, so that the positions of the first limiting portion and the second limiting portion can be reasonably adjusted according to the difference in heights of the first component and the second component along the first direction.
  • the second limiting portion is provided with a reinforcement structure to improve the structural strength and stability of the second limiting portion.
  • the reinforcement structure includes a protrusion of the second limiting portion that protrudes away from the second component, and has a simple structure and is easy to implement.
  • the second limiting portion is provided with a plurality of the reinforcing structures to increase the structural strength of the limiting component, thereby improving the structural stability of the limiting component and the second component, and thereby improving the structural stability of the battery.
  • the battery includes: a plurality of battery cells; a busbar component for electrically connecting the plurality of battery cells, the first component including the busbar component; an insulating component for fixing the plurality of battery cells, the second component including the insulating component.
  • the first limiting portion is fixedly connected to the confluence component along the first direction, so that the first limiting portion and the battery cell can be fixedly connected along the first direction, that is, the first limiting portion can limit the movement of the confluence component along the first direction, and can also limit the movement of the battery cell along the first direction.
  • the limiting component is located on one side of the first component and the second component along the first direction. Since the second limiting portion is connected to the first limiting portion, the second limiting portion can be used to limit the movement of the insulating component along the first direction.
  • the second limiting portion can be arranged with the second component along the first direction and abut against each other.
  • the movement of the insulating structure along the first direction can be limited by the second limiting portion.
  • the insulating structure can be limited from warping, deformation or dislocation along the first direction, which can reduce the overall dimensional deviation of the insulating structure and reduce the wear between the insulating structure and other parts.
  • the insulating structure can be used to limit and fix the positions of multiple battery cells. Therefore, the second limiting portion can limit the position of the insulating structure by limiting the position of the insulating structure. The location of the structure further restricts the location of the plurality of battery cells.
  • the material of the limiting component includes polypropylene PP and/or polycarbonate PC, which has low cost, fast molding cycle, short production cycle, and can improve processing efficiency.
  • an electric device comprising: the battery described in the first aspect or any one embodiment of the first aspect, wherein the battery is used to supply power to the electric device.
  • the electrical equipment is a vehicle, a ship or a spacecraft.
  • FIG1 is a schematic diagram of a vehicle according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a partial structure of a battery according to an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a battery cell according to an embodiment of the present application.
  • FIG4 is a schematic diagram of the exploded structure of a battery cell according to an embodiment of the present application.
  • FIG5 is a schematic top view of a partial structure of a battery according to an embodiment of the present application.
  • FIG6 is a partial cross-sectional schematic diagram of a battery according to an embodiment of the present application.
  • FIG7 is a partial cross-sectional schematic diagram of a first limiting portion according to an embodiment of the present application.
  • FIG8 is a schematic structural diagram of a position limiting component according to an embodiment of the present application.
  • FIG9 is a schematic structural diagram of a position limiting component according to another embodiment of the present application.
  • FIG10 is a schematic structural diagram of a position limiting component according to another embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a position limiting component according to yet another embodiment of the present application.
  • the terms “installed”, “connected”, “connected”, and “attached” should be understood in a broad sense, for example, it can be a non-detachable connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it can be a non-detachable connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two elements.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this application generally indicates that the associated objects before and after are in an "or" relationship.
  • multiple groups refers to two or more groups (including two groups)
  • multiple sheets refers to two or more sheets (including two sheets).
  • battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc., and the embodiments of the present application do not limit this.
  • Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in the present application may include a battery module or a battery pack.
  • the battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator.
  • the battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer.
  • the current collector not coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector not coated with the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer.
  • the current collector not coated with the negative electrode active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon, etc.
  • the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the diaphragm can be polypropylene (PP) or polyethylene (PE).
  • the electrode assembly can be a winding structure or a laminated structure, and the embodiments of the present application are not limited thereto.
  • the development of battery technology must consider many design factors at the same time, such as performance parameters such as energy density, cycle life, discharge capacity, charge and discharge rate, etc.
  • performance parameters such as energy density, cycle life, discharge capacity, charge and discharge rate, etc.
  • efficiency of the battery processing and production process must also be considered.
  • the battery usually includes multiple components, and the relative fixation between the multiple components must consider factors such as processing efficiency and space utilization.
  • a battery includes multiple
  • a pressure strip structure is usually provided in the battery, which can be used to limit the relative movement of multiple battery cells.
  • the pressure strip is usually a long strip structure, and is fixed at both ends of the pressure strip, but the middle part of the pressure strip is prone to warping and deformation, resulting in overall size deviation, and then easy to wear with other parts and other problems; and because the internal space of the battery is limited, the area around the pressure strip structure that can be selected as a fixed reference point is very limited.
  • the embodiment of the present application provides a battery and an electrical device that can solve the above problems.
  • the battery of the embodiment of the present application includes a first component, a second component and a limiting component.
  • the limiting component includes a first limiting portion and a second limiting portion that are connected to each other.
  • the first limiting portion is fixedly connected to the first component of the battery along the first direction so that the limiting component can be relatively fixed with the first component along the first direction, that is, the movement between the limiting component and the first component along the first direction can be limited; in addition, the limiting component is located on one side of the first component and the second component along the first direction, and the second limiting portion connected to the first limiting portion can be used to limit the movement of the second component of the battery along the first direction.
  • the limiting component has a simple structure and is easy to implement, reducing the influence of the limiting component on the processing and assembly efficiency of the battery.
  • Electrical equipment may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, electric tools, and the like.
  • Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles, and new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles, and the like;
  • spacecraft include airplanes, rockets, space shuttles, and spacecraft, and the like;
  • electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like;
  • electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, and the like.
  • the embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.
  • FIG. 1 shows a diagram of a vehicle 1, wherein the vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle.
  • the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • a motor 40, a controller 30 and a battery 10 may be provided inside the vehicle 1.
  • the controller 30 is used to control the battery 10 to supply power to the motor 40.
  • a battery 10 may be provided at the bottom, front or rear of the vehicle 1.
  • the battery 10 may be used to supply power to the vehicle 1.
  • the battery 10 may be used as an operating power source for the vehicle 1, for the circuit system of the vehicle 1, for example, for the starting, navigation and operation of the vehicle 1.
  • the battery 10 may not only be used as an operating power source for the vehicle 1, but may also be used as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.
  • FIG2 shows a schematic diagram of the partial structure of a battery 10 of an embodiment of the present application.
  • the battery 10 of the embodiment of the present application may include a plurality of battery cells 20, wherein the plurality of battery cells 20 may be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series and parallel connection.
  • the battery 10 may also be referred to as a battery pack.
  • a plurality of battery cells 20 may first be connected in series, in parallel, or in mixed connection to form a battery module, and a plurality of battery modules may then be connected in series, in parallel, or in mixed connection to form a battery 10.
  • a plurality of battery cells 20 may directly form a battery 10, or they may first form a battery module, and then the battery module may form a battery 10.
  • Figure 3 shows a schematic diagram of the structure of a battery cell 20 according to an embodiment of the present application
  • Figure 4 shows a schematic diagram of the decomposed structure of a battery cell 20 according to an embodiment of the present application, wherein the battery cell 20 shown in Figures 3 and 4 can be any one of the multiple battery cells 20 included in the battery 10 shown in Figure 2.
  • the battery cell 20 may include one or more electrode assemblies 22 and a housing 21 for accommodating the electrode assemblies 22 .
  • the outer shell 21 of the embodiment of the present application may be a polyhedral structure.
  • the outer shell 21 may include a shell body 211 and an end cover 212, wherein the shell body 211 may be a hollow structure with an opening 2111 formed at least at one end, and the shape of the end cover 212 may be adapted to the shape of the shell body 211, and the end cover 212 is used to cover the opening 2111 of the shell body 211, so that the outer shell 21 isolates the internal environment of the battery cell 20 from the external environment.
  • the end cover 212 may be set as one, such as shown in FIGS.
  • the shell body 211 is a hollow structure with openings 2111 formed at two opposite ends, Two end covers 212 may be provided, and the two end covers 212 respectively cover the openings 2111 at both ends of the shell 211 .
  • the shell 211 of the embodiment of the present application can be made of various materials, such as copper, iron, aluminum, steel, aluminum alloy, etc.
  • the end cover 212 can also be made of various materials, such as copper, iron, aluminum, steel, aluminum alloy, etc.
  • the material of the end cover 212 can be the same as or different from that of the shell 211.
  • the housing 21 of the embodiment of the present application can be in various shapes, such as a cylinder, a cuboid, etc.
  • the shapes of the housing 211 and the end cover 212 match each other.
  • the housing 211 can be a cuboid structure
  • the end cover 212 is a rectangular plate structure that matches the housing 211.
  • the present application takes the outer shell 21 as a rectangular parallelepiped as an example.
  • the outer shell 21 includes: a shell 211, which is a hollow structure with one end open; and an end cap 212, which is used to cover the opening 2111 of the shell 211 to form a closed cavity for placing the electrode assembly 22.
  • the interior of the housing 211 is used to accommodate the electrode assembly 22, and, according to actual use requirements, the number of electrode assemblies 22 in the housing 211 can be one or more.
  • FIG. 2 to FIG. 4 take the battery cell 20 as an example in which the battery cell 20 includes two electrode assemblies 22 arranged along the thickness direction X of the electrode assembly 22, but the embodiment of the present application is not limited thereto.
  • the electrode assembly 22 of the embodiment of the present application is a component where electrochemical reactions occur in the battery cell 20.
  • the electrode assembly 22 can be a cylinder, a cuboid, etc. If the electrode assembly 22 is a cylindrical structure, the housing 211 can also be a cylindrical structure. If the electrode assembly 22 is a cuboid structure, the housing 211 can also be a cuboid structure.
  • the electrode assembly 22 may include a tab 222 and a main body 221.
  • the electrode assembly 22 may include at least two tabs 222, and the at least two tabs 222 may include at least one cathode tab 222b and at least one anode tab 222a, wherein the cathode tab 222b may be formed by stacking a portion of the cathode electrode sheet not coated with the cathode active material layer, and the anode tab 222a may be formed by stacking a portion of the anode electrode sheet not coated with the negative electrode active material layer.
  • the housing 21 of the present embodiment is also provided with an electrode terminal 214, which is used to be electrically connected to the electrode assembly 22 to output the electric energy of the battery cell 20.
  • the battery cell 20 may also include at least two electrode terminals 214. 214 can be arranged on the same wall or different walls of the battery cell 20.
  • the battery cell 20 includes two electrode terminals 214, and the two electrode terminals 214 are arranged on the end cover 212 as an example.
  • the end cover 212 is usually in the shape of a flat plate, and the two electrode terminals 214 are fixed on the flat surface of the end cover 212.
  • the at least two electrode terminals 214 included in the battery cell 20 may include at least one cathode electrode terminal 214b and an anode electrode terminal 214a.
  • the cathode electrode terminal 214b can be directly or indirectly electrically connected to the cathode tab 222b, for example, the cathode tab 222b of the electrode assembly 22 can be connected to the cathode electrode terminal 214b through a connecting member;
  • the anode electrode terminal 214a can be directly or indirectly electrically connected to the anode tab 222a, for example, the anode tab 222a of the electrode assembly 22 is electrically connected to the anode electrode terminal 214a through another connecting member.
  • the battery 10 may further include a busbar 15, which is used to electrically connect multiple battery cells 20, such as in parallel, in series, or in mixed connection.
  • the busbar 15 may realize electrical connection between multiple battery cells 20 by connecting the electrode terminals 214 of the battery cells 20.
  • the busbar 15 may be fixed to the electrode terminals 214 of the battery cells 20 by welding.
  • the battery 10 may further include an insulating component 16, which is used to fix multiple battery cells 20.
  • the insulating component 16 may include a layering structure, which may be used to limit the movement of multiple battery cells 20.
  • the battery 10 may include multiple columns of battery cells 20 arranged along the length direction Y of the battery cells 20, for example, Figure 2 only shows any two columns of battery cells 20; each column of battery cells 20 in the multiple columns of battery cells 20 included in the battery 10 may include multiple battery cells 20 arranged along the thickness direction X of the battery cells 20, for example, Figure 2 only shows two battery cells 20 included in each column of battery cells 20.
  • Each column of battery cells 20 is correspondingly provided with an insulating component 16, for example, the insulating component 16 may extend along the thickness direction X of the battery cells 20, so as to limit the movement of the corresponding at least one column of battery cells 20. Further, the same insulating component 16 may be provided between two adjacent columns of battery cells 20, so as to simultaneously limit the relative movement of the two adjacent columns of battery cells 20, so as to improve the structural stability of the battery 10.
  • the insulating component 16 of the present invention can also be used to support and/or fix the busbar component 15. In some embodiments, the insulating component 16 can also be used to electrically isolate the battery cell 20 from other components in the battery 10. For example, the insulating component 16 can be used to electrically isolate the battery cell 20 from other components in the battery 10. The battery cells 20 are electrically isolated from the housing of the battery 10 .
  • the battery 10 may also include other structures.
  • the battery 10 may also include a box, the interior of the box is a hollow structure, and a plurality of battery cells 20 are contained in the box.
  • the box of the embodiment of the present application may include at least two parts, respectively referred to as the first part and the second part, the first part and the second part are buckled together, and the plurality of battery cells 20 are connected in parallel or in series or in a mixed combination and placed in the box formed after the first part and the second part are buckled.
  • the shape of the first part and the second part may be determined according to the shape of the battery module combination, for example, at least one of the first part and the second part has an opening.
  • the first part and the second part may both be hollow cuboids and each has only one face as an opening face, the opening of the first part and the opening of the second part are arranged oppositely, and the first part and the second part are buckled together to form a box with a closed chamber.
  • only one of the first part and the second part may be a hollow cuboid with an opening, and the other may be plate-shaped to cover the opening.
  • the second part here we take the second part as a hollow cuboid with only one open face, and the first part as a plate. Then the first part covers the opening of the second part to form a box with a closed chamber, which can be used to accommodate multiple battery cells 20.
  • the battery 10 of the embodiment of the present application may include multiple components.
  • a limiting component 13 may be provided in the battery 10 to limit the positions of other components in the battery 10 .
  • the battery 10 includes: a first component 11; a second component 12; and a limiting component 13, the limiting component 13 is located on one side of the first component 11 and the second component 12 along the first direction Z, the limiting component 13 includes a first limiting portion 131 and a second limiting portion 132 connected to each other, the first limiting portion 131 is fixedly connected to the first component 11 along the first direction Z, and the second limiting portion 132 is used to limit the movement of the second component 12 along the first direction Z.
  • the first component 11 may be any component in the battery 10
  • the second component 12 may also be any component in the battery 10.
  • the first component 11 and the second component 12 may be different components in the battery 10, so that the positions of the first component 11 and the second component 12 are limited by the limiting component.
  • the first limiting portion 131 is fixedly connected to the first component 11 along the first direction Z, so that the limiting component 13 can be relatively fixed to the first component 11 along the first direction Z to limit The relative position between the limiting component 13 and the first component 11 along the first direction Z; in addition, the limiting component 13 is located on one side of the first component 11 and the second component 12 along the first direction Z, that is, the first component 11 and the second component 12 are located on the same side of the limiting component 13, and the two are arranged along the first direction Z with the limiting component 13, and the second limiting portion 132 connected to the first limiting portion 131 can be used to limit the movement of the second component 12 along the first direction Z, so that even if there is no connecting member for fixing between the second limiting portion 132 and the second component 12, the movement of the second component 12 along the first direction Z can be limited by the second limiting portion 132, thereby improving the structural stability of the battery 10, and the limiting component 13 has a simple structure and is easy to implement, which can reduce the influence of
  • the first component 11 includes a busbar component 15, and the second component 12 includes an insulating component 16.
  • the busbar component 15 is electrically connected to the electrode terminal 214 of the battery cell 20, and the first component 11 is fixedly connected to the first limiting portion 131 of the limiting component 13 along the first direction Z, so that the first limiting portion 131 and the busbar component 15 can be fixedly connected along the first direction Z, and the first limiting portion 131 and the battery cell 20 can be fixedly connected along the first direction Z, that is, the first limiting portion 131 can limit the movement of the busbar component 15 along the first direction Z, and can also limit the movement of the battery cell 20 along the first direction Z.
  • the limiting component 13 is located on one side of the first component 11 and the second component 12 along the first direction Z.
  • the first direction Z is taken as the height direction Z of the battery cell 20. Since the second limiting portion 132 is connected to the first limiting portion 131, the second limiting portion 132 can be used to limit the movement of the insulating component 16 along the first direction Z.
  • the second limiting portion 132 can be arranged with the second component 12 along the first direction Z and abut against each other. Even if there is no connector for fixing between the second limiting portion 132 and the second component 12, the movement of the insulating component 16 along the first direction Z can be limited by the second limiting portion 132.
  • the insulating component 16 can be limited to be warped, deformed or misaligned along the first direction Z, and the overall size deviation of the insulating component 16 can be reduced, and the wear between the insulating component 16 and other parts can be reduced.
  • the insulating component 16 can be used to limit and fix the positions of multiple battery cells 20. Therefore, the second limiting portion 132 can limit the positions of multiple battery cells 20 by limiting the positions of the insulating component 16.
  • the first component 11 and the second component 12 may also be a battery 10
  • the first component 11 may include a battery cell 20, and the second component 12 includes an insulating component 16.
  • the position of the insulating component 16 and the position of the battery cell 20 can also be limited by the limiting component 13.
  • the first component 11 may include any one of the busbar components 15 for connecting two battery cells 20, and the second component 12 may include another busbar component 15 for connecting another two battery cells 20.
  • the position between the two busbar components 15 can be limited by the limiting component 13.
  • the limiting component 13 of the embodiment of the present application will be described below in conjunction with the accompanying drawings.
  • the embodiment of the present application is mainly described by taking the example that the first component 11 includes the current collecting component 15 and the second component 12 includes the insulating component 16.
  • the shape and size of the limiting component 13 of the embodiment of the present application can be flexibly set according to the actual application to suit different application scenarios.
  • the limiting component 13 can be a plate-like structure to save the space occupied by the limiting component 13, thereby improving the space utilization of the battery 10.
  • the limiting component 13 can be a circular plate-like structure or a rectangular plate-like structure for easy processing.
  • the size of the limiting component 13 can be set according to the size of the first component 11 and the second component 12.
  • the size of the limiting component 13 should not be too large to save the space occupied by the limiting component 13, and the size of the limiting component 13 should not be too small to improve the effect of the limiting component 13 in limiting the movement of the first component 11 and the second component 12, thereby improving the structural stability of the battery 10.
  • the material and processing method of the limiting component 13 can be flexibly set according to the actual application.
  • the limiting component 13 generally adopts a material with a certain deformation ability to meet the processing requirements.
  • the limiting component 13 can be made of a thermoplastic material and formed by a vacuum forming process, which has low cost, fast molding cycle, short production cycle, and can improve processing efficiency.
  • the material of the limiting component 13 includes polypropylene PP and/or polycarbonate (PC) for easy processing.
  • FIG5 is a top view schematic diagram of a partial structure of a battery 10 according to an embodiment of the present application.
  • FIG5 may be a schematic diagram of a partial structure of any two battery cells 20 and an insulating component 16 included in the battery 10 as shown in FIG2.
  • FIG6 is a partial cross-sectional schematic diagram of a battery 10 according to an embodiment of the present application.
  • FIG6 may be a partial cross-sectional schematic diagram along the A-A' direction shown in FIG5. department.
  • the first limiting portion 131 is fixedly connected to the first component 11 along the first direction Z, wherein the fixed connection may mean that the first limiting portion 131 and the first component 11 cannot move relative to each other along the first direction Z after being connected, but the first limiting portion 131 and the first component 11 may move relative to each other along other directions, for example, the first limiting portion 131 and the first component 11 may rotate relative to each other in a direction perpendicular to the first direction Z; or, the first limiting portion 131 and the first component 11 may not be able to move relative to each other along other directions, and the embodiment of the present application is not limited to this.
  • the first limiting portion 131 may correspond to the first component 11, and the second limiting portion 132 may correspond to the second component 12.
  • the second limiting portion 132 can limit the second component 12 without moving the limiting component 13.
  • the first limiting portion 131 may correspond to the first component 11, and the second limiting portion 132 may not correspond to the second component 12.
  • the limiting component 13 is rotated so that the second limiting portion 132 is set corresponding to the second component 12, thereby achieving the second limiting portion 132 limiting the second component 12.
  • the fixed connection of the embodiment of the present application may include a detachable connection or a non-detachable connection.
  • the first limit portion 131 and the first component 11 are non-detachably connected to improve the structural stability between the first limit portion 131 and the first component 11.
  • the first limit portion 131 and the first component 11 can be connected in a detachable manner according to actual applications to be suitable for various application scenarios.
  • the first limit portion 131 and the first component 11 can be connected by welding, such as laser welding or ultrasonic welding.
  • the first limit portion 131 and the first component 11 can be connected by an adhesive.
  • the first limit portion 131 is detachably connected to the first component 11 to facilitate disassembly and assembly.
  • the first limit portion 131 and the first component 11 can be connected in any detachable manner according to actual applications to suit various application scenarios.
  • the first limit portion 131 and the first component 11 can be connected by bolts.
  • the first limit portion 131 can have a through hole, and the bolt extends along the first direction Z, passes through the through hole and is connected to at least a portion of the first component 11.
  • the first limit portion 131 and the first component 11 Riveting may be used therebetween.
  • rivets or other connecting members may be used to achieve riveting between the first limiting portion 131 and the first component 11 .
  • the first position-limiting portion 131 and the first component 11 may be connected in other connection modes.
  • the first position-limiting portion 131 includes a protruding structure 1311 protruding toward the first component 11
  • the first component 11 includes a groove structure 111 opening toward the first position-limiting portion 131
  • the protruding structure 1311 is accommodated in the groove structure 111 and has an interference fit with the groove structure 111.
  • the position-limiting component 13 is located on one side of the first component 11 along the first direction Z, the protruding structure 1311 included in the first position-limiting portion 131 of the position-limiting component 13 protrudes toward the first component 11, and the groove structure 111 included in the first component 11 opens toward the first position-limiting portion 131, therefore, when the protruding structure 1311 is accommodated in the groove structure 111 and has an interference fit with the groove structure 111, the first position-limiting portion 131 and the first component 11 can be fixed along the first direction Z, and the structure is simple and easy to process and assemble.
  • the shape and size of the protrusion structure 1311 of the embodiment of the present application can be flexibly set according to the actual application, and the shape and size of the groove structure 111 are related to the protrusion structure 1311, so that the protrusion structure 1311 can be accommodated in the groove structure 111, thereby achieving the fixation between the first limiter 131 and the first component 11 along the first direction Z.
  • the shape of the protrusion structure 1311 can be the same as the shape of the groove structure 111, so that the protrusion structure 1311 can be accommodated in the groove structure 111.
  • the shape of the protrusion structure 1311 can be cylindrical or rectangular, so as to facilitate processing.
  • FIG. 7 shows a partial cross-sectional schematic diagram of the first position limiting portion 131 of the position limiting component 13 of the embodiment of the present application.
  • the partial cross-sectional schematic diagram of the first position limiting portion 131 shown in FIG. 7 may be a partial enlarged diagram of the first position limiting portion 131 in FIG. 6 .
  • the size of at least part of the protrusion structure 1311 along the second direction Y gradually decreases, and the second direction Y is perpendicular to the first direction Z.
  • the size along the second direction Y is gradually reduced; correspondingly, the size of the groove structure 111 is adapted to the protrusion structure 1311, for example, also from the end of the protrusion structure 1311 close to the first component 11 to the end away from the first component 11
  • the size of the corresponding area of the groove structure 111 along the second direction Y can be gradually reduced or unchanged.
  • the protrusion structure 1311 when the protrusion structure 1311 is accommodated in the groove structure 111, the protrusion structure 1311 can be interference-fitted with the groove structure 111 to achieve the fixation between the first limiting portion 131 and the first component 11 along the first direction Z.
  • the second direction Y of the embodiment of the present application is perpendicular to the first direction Z.
  • the second direction Y is taken as the length direction Y of the battery cell 20, but the second direction can also be other directions perpendicular to the first direction Z.
  • the embodiment of the present application is not limited to this.
  • the size of a local area of the protrusion structure 1311 close to one end of the first component 11 along the second direction Y can be set to be smaller, so that the protrusion structure 1311 can smoothly enter the groove structure 111; from the local area to the area away from the end of the first component 11, the size along the second direction Y can be set to gradually decrease, so that the protrusion structure 1311 and the groove structure 111 have an interference fit.
  • the difference between the maximum dimension L2 and the minimum dimension L1 of the protrusion structure 1311 along the second direction Y is less than or equal to 1 mm, so that the protrusion structure 1311 can be quickly and smoothly accommodated in the groove structure 111; in addition, the difference L2-L1 between the maximum dimension L2 and the minimum dimension L1 of the protrusion structure 1311 along the second direction Y can also be greater than zero, so as to achieve an interference fit between the protrusion structure 1311 and the groove structure 111.
  • the difference L2-L1 between the maximum dimension L2 and the minimum dimension L1 of the protrusion structure 1311 along the second direction Y can be set to 1 mm, 0.9 mm, 0.8 mm, 0.7 mm, 0.6 mm, 0.5 mm, 0.4 mm, 0.3 mm, 0.2 mm or 0.1 mm.
  • the maximum dimension L2 of the protruding structure 1311 of the embodiment of the present application along the second direction Y is usually closer to the first component 11 than the minimum dimension L1; in addition, the maximum dimension L2 of the protruding structure 1311 along the second direction Y is usually at a distance from the end of the protruding structure 1311 close to the first component 11, that is, the maximum dimension L2 of the protruding structure 1311 along the second direction Y is usually not equal to the dimension L3 of the end area of the protruding structure 1311 close to the first component 11.
  • the maximum dimension L2 of the protruding structure 1311 along the second direction Y is usually larger than the dimension L3 of the end area of the protruding structure 1311 close to the first component 11, so that the protruding structure 1311 can enter the groove structure 111 more smoothly from the end area close to the first component 11, so as to facilitate installation.
  • the protrusion structure 1311 of the embodiment of the present application can be a solid structure or a hollow structure.
  • the protruding structure 1311 may be a solid structure to improve the strength and stability of the protruding structure 1311 , thereby improving the stability between the first limiting portion 131 and the first component 11 .
  • the protruding structure 1311 may be a hollow structure.
  • the protruding structure 1311 is a groove of the first limiting portion 131 that is recessed toward the first component 11, which is convenient for processing and can reduce the weight of the protruding structure 1311, that is, reduce the weight of the limiting component 13, and further reduce the weight of the battery 10.
  • FIG8 shows a schematic diagram of the structure of the limiting component 13 of an embodiment of the present application.
  • FIG8 may be a schematic diagram of the structure of the limiting component 13 as shown in FIG2 to FIG7.
  • FIG9 to FIG11 respectively show possible schematic diagrams of the structure of the limiting component 13 of other embodiments of the present application.
  • the limiting component 13 shown in FIG9 to FIG11 may replace the limiting component 13 shown in FIG8.
  • the second limit portion 132 and the first limit portion 131 form a step structure, that is, the second limit portion 132 and the first limit portion 131 are not located in the same plane and are not arranged flush. In this way, the positions of the first limit portion 131 and the second limit portion 132 can be reasonably adjusted according to the difference in height of the first component 11 and the second component 12 along the first direction Z.
  • the first component 11 includes a conduit component 15 and the second component 12 includes an insulating component 16; along the first direction Z, the insulating component 16 usually protrudes from the conduit component 15, and the first limit portion 131 and the second limit portion 132 are arranged to form a step structure, which can adapt to the protruding insulating component 16 and facilitate the assembly of the battery 10.
  • the positions of the first limit portion 131 and the second limit portion 132 can be flexibly set according to actual applications, for example, the positions of the first limit portion 131 and the second limit portion 132 can be reasonably set according to the height difference between the first component 11 and the second component 12 in the first direction Z.
  • the second limit portion 132 can be higher than the first limit portion 131; for another example, as shown in FIG9 , along the first direction Z, the second limit portion 132 can be lower than the first limit portion 131, and the embodiments of the present application are not limited thereto.
  • the second position limiting portion 132 and the first position limiting portion 131 may not be arranged as a step structure.
  • the first position limiting portion 131 may also be arranged flush with the second position limiting portion 132 to facilitate processing and assembly.
  • the second limiting portion 132 is provided with a reinforcing structure 1321 to improve The structural strength and stability of the second limiting portion 132.
  • the second limiting portion 132 is arranged to abut against the second component 12 by relying on the fixed connection between the first limiting portion 131 and the first component 11, and the first limiting portion 131 is connected to the second limiting portion 132, so that the movement of the second component 12 along the first direction Z can be limited.
  • the structural strength of the second limiting portion 132 can be improved, and the difficulty of the second limiting portion 132 to deform along the first direction Z can be increased, so that the movement of the second component 12 along the first direction Z can be stably limited, so as to improve the limiting effect of the limiting component 13.
  • the reinforcing structure 1321 of the embodiment of the present application can be implemented in a variety of ways to be suitable for different scenarios.
  • the reinforcing structure 1321 includes a protrusion of the second limiting portion 132 protruding in the direction away from the second component 12, which has a simple structure and is easy to implement.
  • the reinforcing structure 1321 when the reinforcing structure 1321 is a protrusion of the second limiting portion 132, the reinforcing structure 1321 can be a hollow structure or a solid structure.
  • the reinforcing structure 1321 is a hollow structure, for example, the reinforcing structure 1321 includes a protrusion formed by the second limiting portion 132 being recessed in the direction away from the second component 12, it can increase the structural strength of the second limiting portion 132 of the limiting component 13, and can also reduce the weight of the limiting component 13 compared to the solid structure. If the reinforcing structure 1321 is a solid structure, the structural strength and stability of the second limiting portion 132 of the limiting component 13 can be increased.
  • the number of the reinforcing structures 1321 included in the second position limiting portion 132 can be flexibly set according to the actual application.
  • the number of the reinforcing structures 1321 can be reasonably set according to the size of the second position limiting portion 132. Specifically, if the size of the second position limiting portion 132 is large, multiple reinforcing structures 1321 can be set to improve the structural stability; if the size of the second position limiting portion 132 is small, a small number of reinforcing structures 1321 can be set to reasonably use the space.
  • the number of the reinforcing structures 1321 can also be reasonably set according to the structural strength requirements of the second component 12.
  • the second position limiting portion 132 can include multiple reinforcing structures 1321 to improve the structural stability and reduce the movement of the second component 12; on the contrary, if the second component 12 is less deformed and displaced, the second position limiting portion 132 can include a small number of reinforcing structures 1321 to reduce the weight of the position limiting component 13.
  • the second limiting portion 132 is provided with a plurality of reinforcing structures 1321 to enhance The structural strength of the limiting component 13 is increased, thereby improving the structural stability of the limiting component 13 and the second component 12, thereby improving the structural stability of the battery 10.
  • the second limiting portion 132 may include a plurality of reinforcing structures 1321 arranged along a third direction X, and the third direction X is perpendicular to the first direction Z.
  • the embodiment of the present application takes the third direction X as the thickness direction X of the battery cell 20 as an example, but the embodiment of the present application is not limited thereto.
  • the second limiting portion 132 may include a reinforcing structure 1321 to facilitate processing.
  • the first limiting portion 131 is fixedly connected to the first component 11 along the first direction Z, so that the limiting portion 13 can be relatively fixed to the first component 11 along the first direction Z to limit the relative position between the limiting portion 13 and the first component 11 along the first direction Z; in addition, the limiting portion 13 is located on one side of the first component 11 and the second component 12 along the first direction Z, and the second limiting portion 132 connected to the first limiting portion 131 can be used to limit the movement of the second component 12 along the first direction Z.
  • the limiting portion 13 has a simple structure and is easy to implement, which can reduce the influence of the limiting portion 13 on the processing and assembly efficiency of the battery 10.
  • the first limiting portion 131 includes a protruding structure 1311 protruding toward the first component 11, the first component 11 includes a groove structure 111 opening toward the first limiting portion 131, and the protruding structure 1311 is accommodated in the groove structure 111 and has an interference fit with the groove structure 111.
  • the protruding structure 1311 can be a hollow structure.
  • the second limiting portion 132 forms a step structure with the first limiting portion 131.
  • the second limiting portion 132 is provided with a reinforcement structure 1321.

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Abstract

本申请实施例公开了一种电池和用电设备。该电池包括：第一部件；第二部件；限位部件，该限位部件位于该第一部件和该第二部件的沿第一方向的一侧，该限位部件包括相连的第一限位部和第二限位部，该第一限位部与该第一部件沿该第一方向固定连接，该第二限位部用于限制该第二部件沿该第一方向移动。本申请实施例的电池和用电设备，能够提高电池的结构稳定性。

Description

电池和用电设备
相关申请的交叉引用
本申请要求享有于2023年10月18日提交的名称为“电池和用电设备”的中国专利申请202311348512.2的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池领域，更为具体地，涉及一种电池和用电设备。
背景技术
随着电池技术的不断进步，各种以电池作为储能设备的新能源产业得到了迅速的发展。在电池技术的发展中，除了提高电池的性能外，如何在保证加工效率的情况下还能提高电池结构稳定性也是一个不可忽视的问题。
发明内容
本申请实施例提供了一种电池和用电设备，能够提高电池的结构稳定性。
第一方面，提供了一种电池，包括：第一部件；第二部件；限位部件，该限位部件位于该第一部件和该第二部件的沿第一方向的一侧，该限位部件包括相连的第一限位部和第二限位部，该第一限位部与该第一部件沿该第一方向固定连接，该第二限位部用于限制该第二部件沿该第一方向移动。
因此，本申请实施例的电池包括限位部件，该限位部件包括相连的第一限位部和第二限位部，第一限位部与电池的第一部件沿第一方向固定连接，以使得该限位部件能够与第一部件之间沿第一方向相对固定，即可以限制该限位部件与第一部件之间沿第一方向的移动；进一步地，与第一限位部相连的第二限位部可以用于限制电池的第二部件沿第一方向的移动，这样，即使第二限位部与第二部件之间未设置有用于固定的连接件，也可以通过该第二限位部限制第二部件沿第一方向的移动，进而提高电池的结构稳定性，并且限位部件结构简单，易于实现，减少该限位部件对电池的加工和组装的效率的影响。
在一些实施例中，该第一限位部与该第一部件可拆卸连接，以便于拆卸和组装。
在一些实施例中，该第一限位部包括朝向该第一部件凸出的凸起结构，该第一部件包括开口朝向该第一限位部的凹槽结构，该凸起结构容纳于该凹槽结构且与该凹槽结构过盈配合。凸起结构容纳于凹槽结构且与该凹槽结构过盈配合的情况下，可以实现该第一限位部与第一部件之间沿第一方向的固定，结构简单，易于加工和组装。
在一些实施例中，自该凸起结构的靠近该第一部件的一端向远离该第一部件的一端的方向，该凸起结构的至少部分区域的沿第二方向的尺寸逐渐减小，该第二方向垂直于该第一方向。这样，将该凸起结构容纳于凹槽结构的情况下，该凸起结构可以与凹槽结构过盈配合，以实现该第一限位部与第一部件之间沿第一方向的固定。
在一些实施例中，该凸起结构的沿第二方向的最大尺寸与最小尺寸的差小于或者等于1mm，以便于能够将凸起结构快速和顺利地容纳于凹槽结构。
在一些实施例中，该凸起结构为空心结构，既便于加工，又可以减 轻该凸起结构的重量，即减轻限位部件的重量，进而可以减轻电池的重量。
在一些实施例中，该第二限位部与该第一限位部形成台阶结构。这样可以根据第一部件和第二部件沿第一方向的高度的不同，合理调整第一限位部与第二限位部的位置。
在一些实施例中，该第二限位部设置有加强结构，以提高该第二限位部的结构强度和稳定性。
在一些实施例中，该加强结构包括该第二限位部的朝向远离该第二部件凸出的凸起，结构简单，易于实现。
在一些实施例中，该第二限位部设置有多个该加强结构，以增加限位部件的结构强度，进而提高该限位部件以及第二部件的结构稳定性，进而提高该电池的结构稳定性。
在一些实施例中，该电池包括：多个电池单体；汇流部件，用于将该多个电池单体电连接，该第一部件包括该汇流部件；绝缘部件，用于固定该多个电池单体，该第二部件包括该绝缘部件。
该第一限位部与汇流部件之间沿第一方向固定连接，可以实现该第一限位部与电池单体之间沿第一方向固定连接，即第一限位部可以限制汇流部件沿第一方向的移动，也可以限制电池单体沿第一方向的移动。限位部件位于第一部件和第二部件的沿第一方向的一侧，由于第二限位部与第一限位部相连，因此，该第二限位部可以用于限制绝缘部件沿第一方向的移动。该第二限位部可以与第二部件沿第一方向排列并相互抵接，即使该第二限位部与第二部件之间未设置有用于固定的连接件，通过该第二限位部也可以限制该绝缘结构沿第一方向的移动，例如，可以限制该绝缘结构沿第一方向发生翘起变形或错位，可以减少该绝缘结构整体尺寸偏差，减少该绝缘结构与其他零件之间的磨损等问题；并且，该绝缘结构可以用于限制和固定多个电池单体的位置，因此，该第二限位部可以通过限制绝缘 结构的位置进而限制多个电池单体的位置。
在一些实施例中，该限位部件的材料包括聚丙烯PP和/或聚碳酸酯PC，成本低，成型节拍快，生产周期短，可以提高加工效率。
第二方面，提供了一种用电设备，包括：第一方面或者第一方面中任意一个实施例所述的电池，该电池用于为用电设备供电。
在一些实施例中，所述用电设备为车辆、船舶或航天器。
附图说明
图1为本申请一个实施例的车辆的示意图；
图2为本申请一个实施例的电池的局部结构示意图；
图3为本申请一个实施例的电池单体的结构示意图；
图4为本申请一个实施例的电池单体的分解结构示意图；
图5为本申请一个实施例的电池的局部结构的俯视示意图；
图6为本申请一个实施例的电池的局部剖面示意图；
图7为本申请一个实施例的第一限位部的局部剖面示意图；
图8为本申请一个实施例的限位部件的结构示意图；
图9为本申请另一个实施例的限位部件的结构示意图；
图10为本申请再一个实施例的限位部件的结构示意图；
图11为本申请再一个实施例的限位部件的结构示意图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基 于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“附接”应做广义理解，例如，可以是不可拆卸连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的实施例中，相同的附图标记表示相同的部件，并且为了简洁，在不同实施例中，省略对相同部件的详细说明。应理解，附图示出的本申请实施例中的各种部件的厚度、长宽等尺寸，以及集成装置的整体厚度、长宽等尺寸仅为示例性说明，而不应对本申请构成任何限定。
本申请中出现的“多个”指的是两个以上(包括两个)，同理， “多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔膜的材质可以为聚丙烯(polypropylene，PP)或聚乙烯(polyethylene，PE)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率等性能参数，另外，还需要考虑电池的加工生产过程中的效率问题。电池内通常包括多个部件，该多个部件之间的相对固定要考虑加工效率和空间利用率等因素。例如，电池包括多个电 池单体，为了提高多个电池单体在电池内的稳定性，电池内通常还设置有压条结构，该压条结构能够用于限制多个电池单体的相对移动。该压条通常为长条形结构，并且在压条的两端进行固定，但该压条的中间位置容易上翘变形，导致整体尺寸偏差，进而产生容易与其他零件发生磨损等问题；且因电池的内部空间有限，压条结构的周围可选做固定基准点的区域十分有限。
因此，本申请实施例提供了一种电池和用电设备，能够解决上述问题。本申请实施例的电池包括第一部件、第二部件和限位部件。该限位部件包括相连的第一限位部和第二限位部，第一限位部与电池的第一部件沿第一方向固定连接，以使得该限位部件能够与第一部件之间沿第一方向相对固定，即可以限制该限位部件与第一部件之间沿第一方向的移动；另外，该限位部件位于第一部件和第二部件的沿第一方向的一侧，与第一限位部相连的第二限位部可以用于限制电池的第二部件沿第一方向的移动，这样，即使第二限位部与第二部件之间未设置有用于固定的连接件，也可以通过该第二限位部限制第二部件沿第一方向的移动，进而提高电池的结构稳定性，并且限位部件结构简单，易于实现，减少该限位部件对电池的加工和组装的效率的影响。
本申请实施例描述的技术方案均适用于各种使用电池的用电设备。
用电设备可以是车辆、手机、便携式设备、笔记本电脑、轮船、航天器、电动玩具和电动工具等等。车辆可以是燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等；航天器包括飞机、火箭、航天飞机和宇宙飞船等等；电动玩具包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等；电动工具包括金属切削电动工具、研磨电动工具、装配电动工具和铁道用电动工具，例如，电钻、电动砂轮机、电动扳手、电动螺丝刀、电锤、冲击电钻、混凝土振动器和电刨等等。本申请实施例对上述用电设备不做特殊限制。
以下实施例为了方便说明，以用电设备为车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意 图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部可以设置马达40，控制器30以及电池10，控制器30用来控制电池10为马达40的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提供驱动动力。
图2示出了本申请实施例的电池10的局部结构示意图。如图2所示，为了满足不同的使用电力需求，本申请实施例的电池10可以包括多个电池单体20，其中，多个电池单体20之间可以串联或并联或混联，混联是指串联和并联的混合。电池10也可以称为电池包。例如，多个电池单体20可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池10。也就是说，多个电池单体20可以直接组成电池10，也可以先组成电池模块，电池模块再组成电池10。
图3示出了本申请实施例的电池单体20的结构示意图，图4示出了本申请实施例的电池单体20的分解结构示意图，其中，该图3和图4所示的电池单体20可以为图2所示的电池10包括的多个电池单体20中的任意一个电池。
如图2至图4所示，电池单体20可以包括一个或多个电极组件22以及用于容纳该电极组件22的外壳21。
应理解，如图2至图4所示，本申请实施例的外壳21可以为多面体结构。具体地，该外壳21可以包括壳体211和端盖212，其中，该壳体211可以是至少一端形成开口2111的空心结构，而端盖212的形状可以与壳体211的形状相适配，端盖212用于盖合于壳体211的开口2111，以使外壳21将电池单体20的内部环境与外部环境隔绝。若壳体211为一端形成开口2111的空心结构，端盖212则可以设置为一个，例如图2至图4所示；与之不同的，若壳体211为相对的两端形成开口2111的空心结构， 端盖212则可以设置为两个，两个端盖212分别盖合于壳体211两端的开口2111。
本申请实施例的壳体211的材质可以是多种，比如，铜、铁、铝、钢、铝合金等。端盖212的材质也可以是多种，比如，铜、铁、铝、钢、铝合金等，端盖212的材质与壳体211的材质可以相同，也可以不同。
本申请实施例的外壳21可以是多种形状，比如，圆柱体、长方体等。壳体211和端盖212的形状相互配合，例如，如图2至图4所示，壳体211可以为长方体结构，端盖212为与壳体211相适配的矩形板状结构。
为了便于说明，本申请以外壳21为长方体为例。具体地，如图2至图4所示，外壳21包括：壳体211，壳体211为一端开口的中空结构；端盖212，该端盖212用于盖合壳体211的开口2111，以形成放置电极组件22的封闭的腔体。
在该电池单体20中，壳体211内部用于容纳电极组件22，并且，根据实际使用需求，壳体211内的电极组件22可设置为一个或多个。例如，图2至图4以电池单体20包括沿电极组件22的厚度方向X排列的两个电极组件22为例，但本申请实施例并不限于此。
本申请实施例的电极组件22是电池单体20中发生电化学反应的部件。电极组件22可以是圆柱体、长方体等，若电极组件22为圆柱体结构，壳体211也可以为圆柱体结构，若电极组件22为长方体结构，壳体211也可以为长方体结构。
对于任意一个电极组件22，电极组件22可以包括极耳222和主体部221。具体地，如图2至图4所示，电极组件22可以包括至少两个极耳222，该至少两个极耳222可以包括至少一个阴极极耳222b和至少一个阳极极耳222a，阴极极耳222b可以由阴极极片上未涂覆阴极活性物质层的部分层叠形成，阳极极耳222a可以由阳极极片上未涂覆负极活性物质层的部分层叠形成。
本申请实施例的外壳21上还设置有电极端子214，电极端子214用于与电极组件22电连接，以输出电池单体20的电能。如图2至图4所示，该电池单体20还可以包括至少两个电极端子214，该至少两个电极端子 214可以设置在电池单体20的同一个壁或者不同的壁上，例如，图2至图4中以该电池单体20包括两个电极端子214，且该两个电极端子214均设置在端盖212上为例。端盖212通常是平板形状，两个电极端子214固定在端盖212的平板面上。电池单体20包括的至少两个电极端子214可以包括至少一个阴极电极端子214b和阳极电极端子214a。阴极电极端子214b可以直接或者间接与阴极极耳222b电连接，例如，电极组件22的阴极极耳222b可以通过一个连接构件与阴极电极端子214b连接；阳极电极端子214a可以直接或者间接与阳极极耳222a电连接，例如，电极组件22的阳极极耳222a通过另一个连接构件与阳极电极端子214a电连接。
在本申请实施例中，该电池10还可以包括汇流部件15，汇流部件15用于将多个电池单体20电连接，例如并联或串联或混联。具体地，汇流部件15可通过连接电池单体20的电极端子214实现多个电池单体20之间的电连接。进一步地，汇流部件15可通过焊接固定于电池单体20的电极端子214。
在一些实施例中，该电池10还可以包括绝缘部件16，绝缘部件16用于固定多个电池单体20。例如，该绝缘部件16可以包括压条结构，该压条结构可以用于限制多个电池单体20的移动。例如，如图2至图4所示，电池10可以包括沿电池单体20的长度方向Y排列的多列电池单体20，例如，图2仅示出了其中任意两列电池单体20；电池10包括的多列电池单体20中每列电池单体20可以包括沿电池单体20的厚度方向X排列的多个电池单体20，例如，图2仅示出了每列电池单体20包括的两个电池单体20。每列电池单体20对应设置有绝缘部件16，例如，该绝缘部件16可以沿电池单体20的厚度方向X延伸，以用于限制对应的至少一列电池单体20的移动。进一步地，在相邻两列电池单体20之间可以设置有同一绝缘部件16，以用于同时限制该相邻两列电池单体20的相对移动，以提高电池10的结构稳定性。
在一些实施例中，本申请实施例的绝缘部件16还可以用于支撑和/或固定汇流部件15。在一些实施例中，该绝缘部件16还可以用于将电池单体20与电池10内其他部件电隔离，例如，该绝缘部件16可以用于将 电池单体20与电池10的箱体电隔离。
在一些实施例中，该电池10还可以包括其他结构。例如，电池10还可以包括箱体，箱体内部为中空结构，多个电池单体20容纳于箱体内。具体地，本申请实施例的箱体可以包括至少两部分，这里分别称为第一部分和第二部分，第一部分和第二部分扣合在一起，多个电池单体20相互并联或串联或混联组合后置于第一部分和第二部分扣合后形成的箱体内。第一部分和第二部分的形状可以根据电池模块组合的形状而定，例如，第一部分和第二部分中至少一个具有一个开口。例如，该第一部分和第二部分均可以为中空长方体且各自只有一个面为开口面，第一部分的开口和第二部分的开口相对设置，并且第一部分和第二部分相互扣合形成具有封闭腔室的箱体。再例如，第一部分和第二部分中可以仅有一个为具有开口的中空长方体，而另一个为板状，以盖合开口。例如，这里以第二部分为中空长方体且只有一个面为开口面，第一部分为板状为例，那么第一部分盖合在第二部分的开口处以形成具有封闭腔室的箱体，该腔室可以用于容纳多个电池单体20。
本申请实施例的电池10可以包括多个部件，为了提高该电池10的结构稳定性，还可以在该电池10内设置有限位部件13，以用于限制电池10内其他部件的位置。
具体地，电池10包括：第一部件11；第二部件12；以及限位部件13，该限位部件13位于该第一部件11和该第二部件12的沿第一方向Z的一侧，该限位部件13包括相连的第一限位部131和第二限位部132，该第一限位部131与该第一部件11沿该第一方向Z固定连接，该第二限位部132用于限制该第二部件12沿该第一方向Z移动。
在本申请实施例中，第一部件11可以为电池10内的任意一个部件，第二部件12也可以为电池10内任意一个部件。例如，该第一部件11和第二部件12可以为电池10内的不同部件，以便于通过限位部件限制第一部件11和第二部件12的位置。
具体地，第一限位部131与第一部件11沿第一方向Z固定连接，以使得该限位部件13能够与第一部件11沿第一方向Z相对固定，以限制 该限位部件13与第一部件11之间沿第一方向Z的相对位置；另外，限位部件13位于第一部件11和第二部件12的沿第一方向Z的一侧，即第一部件11和第二部件12位于限位部件13的同一侧，且二者与限位部件13沿第一方向Z排列，与第一限位部131相连的第二限位部132可以用于限制第二部件12沿第一方向Z的移动，这样，即使第二限位部132与第二部件12之间不设置有用于固定的连接件，也可以通过该第二限位部132限制第二部件12沿第一方向Z的移动，进而提高电池10的结构稳定性，并且限位部件13结构简单，易于实现，能够减少该限位部件13对电池10的加工和组装的效率的影响。
在一些实施例中，第一部件11包括汇流部件15，第二部件12包括绝缘部件16。具体地，该汇流部件15与电池单体20的电极端子214电连接，第一部件11与限位部件13的第一限位部131沿第一方向Z固定连接，则可以实现该第一限位部131与汇流部件15之间沿第一方向Z固定连接，也可以实现该第一限位部131与电池单体20之间沿第一方向Z固定连接，即第一限位部131可以限制汇流部件15沿第一方向Z的移动，也可以限制电池单体20沿第一方向Z的移动。
另外，限位部件13位于第一部件11和第二部件12的沿第一方向Z的一侧，例如，这里以该第一方向Z为电池单体20的高度方向Z为例，由于第二限位部132与第一限位部131相连，因此，该第二限位部132可以用于限制绝缘部件16沿第一方向Z的移动。例如，该第二限位部132可以与第二部件12沿第一方向Z排列并相互抵接，即使该第二限位部132与第二部件12之间未设置有用于固定的连接件，通过该第二限位部132也可以限制该绝缘部件16沿第一方向Z的移动，例如，可以限制该绝缘部件16沿第一方向Z发生翘起变形或错位，可以减少该绝缘部件16整体尺寸偏差，减少该绝缘部件16与其他零件之间的磨损等问题；并且，该绝缘部件16可以用于限制和固定多个电池单体20的位置，因此，该第二限位部132可以通过限制绝缘部件16的位置进而限制多个电池单体20的位置。
在一些实施例中，该第一部件11和第二部件12还可以为电池10 的其他部件，在此不再一一举例说明。例如，该第一部件11可以包括电池单体20，第二部件12包括绝缘部件16，则同样可以通过限位部件13限制绝缘部件16的位置以及电池单体20的位置。再例如，该第一部件11可以包括用于连接两个电池单体20的任意一个汇流部件15，该第二部件12可以包括用于连接另两个电池单体20的另一个汇流部件15，则可以通过限位部件13限制两个汇流部件15之间的位置。
下面将结合附图对本申请实施例的限位部件13进行说明。为了便于说明，本申请实施例中主要以该第一部件11包括汇流部件15，第二部件12包括绝缘部件16为例进行描述。
应理解，本申请实施例的限位部件13的形状和尺寸可以根据实际应用灵活设置，以适用于不同应用场景。例如，该限位部件13可以为板状结构，以节省该限位部件13占用的空间，进而提高电池10的空间利用率。再例如，该限位部件13可以为圆形板状结构或者矩形板状结构，以便于加工。再例如，该限位部件13的尺寸可以根据第一部件11和第二部件12的尺寸进行设置，该限位部件13的尺寸不宜过大，以节省该限位部件13占用的空间，该限位部件13的尺寸也不宜过小，以提高该限位部件13限制第一部件11和第二部件12的移动的效果，进而提高电池10的结构稳定性。
在一些实施例中，该限位部件13的材料和加工方式可以根据实际应用灵活设置。例如，该限位部件13一般采用具有一定变形能力，以满足加工要求的材料。再例如，该限位部件13可以采用热塑性材料，并通过吸塑工艺成型，成本低，成型节拍快，生产周期短，可以提高加工效率。再例如，限位部件13的材料包括聚丙烯PP和/或聚碳酸酯(Polycarbonate，PC)，以便于加工。
下面将结合附图，对该限位部件13的第一限位部131进行描述。图5示出了本申请实施例的电池10的局部结构的俯视示意图，例如，该图5可以为如图2所示的电池10包括的任意两个电池单体20以及绝缘部件16的局部结构的示意图。图6示出了本申请实施例的电池10的局部剖面示意图，例如，图6可以为沿图5所示的A-A’方向的剖面示意图的局 部。
在本申请实施例中，第一限位部131与第一部件11沿第一方向Z固定连接，其中，该固定连接可以指第一限位部131与第一部件11连接后无法沿第一方向Z相互移动，但第一限位部131与第一部件11之间可能沿其他方向发生移动，例如，第一限位部131与第一部件11之间可以沿垂直于第一方向Z的方向相互转动；或者，该第一限位部131与第一部件11之间也可能无法沿其他方向发生移动，本申请实施例并不限于此。
例如，在安装限位部件13的过程中，可以将第一限位部131与第一部件11对应，也将第二限位部132与第二部件12相对应，这样，将第一限位部131与第一部件11固定连接后，无需再移动该限位部件13，即可实现第二限位部132对第二部件12的限位。或者，先将第一限位部131与第一部件11对应，该第二限位部132可以与第二部件12不对应，将第一限位部131与第一部件11固定连接后，通过旋转该限位部件13，以使得该第二限位部132与第二部件12相对应设置，进而实现第二限位部132对第二部件12的限位。
应理解，本申请实施例的固定连接可以包括可拆卸连接或者不可拆卸连接。在一些实施例中，该第一限位部131与第一部件11之间不可拆卸连接，以提高该第一限位部131与第一部件11之间的结构稳定性。具体地，该第一限位部131与第一部件11之间可以根据实际应用，采用任意部可拆卸的连接方式，以适用于各种应用场景。例如，该第一限位部131与第一部件11之间可以通过焊接的方式连接，例如可以采用激光焊接或者超声焊接等。再例如，该第一限位部131与第一部件11之间可以通过粘结剂连接。
在一些实施例中，第一限位部131与第一部件11可拆卸连接，以便于拆卸和组装。具体地，该第一限位部131与第一部件11之间可以根据实际应用，采用任意可拆卸的连接方式，以适用于各种应用场景。例如，该第一限位部131与第一部件11之间可以通过螺栓连接，例如，该第一限位部131可以具有通孔，螺栓沿第一方向Z延伸，穿过该通孔并与第一部件11的至少部分区域连接。再例如，该第一限位部131与第一部件11 之间可以采用铆接，例如，该第一限位部131与第一部件11之间可以采用铆钉或者其他连接件以实现铆接。
在本申请实施例中，该第一限位部131与第一部件11之间还可以采用其他连接方式连接。例如，第一限位部131包括朝向第一部件11凸出的凸起结构1311，第一部件11包括开口朝向第一限位部131的凹槽结构111，凸起结构1311容纳于凹槽结构111且与凹槽结构111过盈配合。具体地，如图5和图6所示，限位部件13位于第一部件11的沿第一方向Z的一侧，限位部件13的第一限位部131包括的凸起结构1311朝向第一部件11凸出，第一部件11包括的凹槽结构111开口朝向第一限位部131，因此，凸起结构1311容纳于凹槽结构111且与该凹槽结构111过盈配合的情况下，可以实现该第一限位部131与第一部件11之间沿第一方向Z的固定，结构简单，易于加工和组装。
应理解，本申请实施例的凸起结构1311的形状和尺寸可以根据实际应用灵活设置，凹槽结构111的形状和尺寸与凸起结构1311相关，以便于凸起结构1311能够容纳于凹槽结构111内，进而实现第一限位部131与第一部件11之间沿第一方向Z的固定。例如，该凸起结构1311的形状与凹槽结构111的形状可以相同，以使得该凸起结构1311能够容纳于凹槽结构111内。再例如，该凸起结构1311的形状可以为圆柱形或者长方体，以便于加工。
图7示出了本申请实施例的限位部件13的第一限位部131的局部剖面示意图，例如，该图7所示的第一限位部131的局部剖面示意图可以为图6中第一限位部131的局部放大图。
在一些实施例中，自凸起结构1311的靠近第一部件11的一端向远离第一部件11的一端的方向，凸起结构1311的至少部分区域的沿第二方向Y的尺寸逐渐减小，第二方向Y垂直于第一方向Z。具体地，如图7所示，自凸起结构1311的靠近第一部件11的一端向远离第一部件11的一端的方向，该凸起结构1311存在至少部分区域满足：沿第二方向Y的尺寸是逐渐减小的；与之对应的，凹槽结构111的尺寸与该凸起结构1311相适配，例如，同样在自凸起结构1311的靠近第一部件11的一端向远离 第一部件11的一端的方向上，可以设置该凹槽结构111的对应区域的沿第二方向Y的尺寸也逐渐减小或者不变。这样，将凸起结构1311容纳于凹槽结构111的情况下，该凸起结构1311可以与凹槽结构111过盈配合，以实现该第一限位部131与第一部件11之间沿第一方向Z的固定。
应理解，本申请实施例的第二方向Y垂直于第一方向Z，例如，本申请实施例中以该第二方向Y为电池单体20的长度方向Y为例，但该第二方向也可以为垂直于第一方向Z的其他方向，本申请实施例并不限于此。
在一些实施例中，为了便于加工，如图7所示，可以设置凸起结构1311的靠近第一部件11的一端的局部区域的沿第二方向Y的尺寸较小，以使得该凸起结构1311顺利进入凹槽结构111内；自该局部区域至远离第一部件11的一端的区域，可以设置沿第二方向Y的尺寸逐渐减小，以使得该凸起结构1311与凹槽结构111之间过盈配合。
在一些实施例中，凸起结构1311的沿第二方向Y的最大尺寸L2与最小尺寸L1的差小于或者等于1mm，以便于能够将凸起结构1311快速和顺利地容纳于凹槽结构111；另外，凸起结构1311的沿第二方向Y的最大尺寸L2与最小尺寸L1的差L2-L1还可以大于零，以实现凸起结构1311与凹槽结构111之间过盈配合。例如，凸起结构1311的沿第二方向Y的最大尺寸L2与最小尺寸L1的差L2-L1可以设置为1mm、0.9mm、0.8mm、0.7mm、0.6mm、0.5mm、0.4mm、0.3mm、0.2mm或者0.1mm。
应理解，如图7所示，本申请实施例的凸起结构1311的沿第二方向Y的最大尺寸L2相比于最小尺寸L1通常更加靠近第一部件11；另外，该凸起结构1311的沿第二方向Y的最大尺寸L2通常距该凸起结构1311的靠近第一部件11的一端具有一段距离，即该凸起结构1311的沿第二方向Y的最大尺寸L2通常不等于该凸起结构1311的靠近第一部件11的端部区域的尺寸L3，例如，该凸起结构1311的沿第二方向Y的最大尺寸L2通常大于该凸起结构1311的靠近第一部件11的端部区域的尺寸L3，以使得该凸起结构1311自靠近第一部件11的端部区域进入凹槽结构111时更加顺利，以便于安装。
应理解，本申请实施例的凸起结构1311可以为实心结构或者空心 结构。在一些实施例中，该凸起结构1311可以为实心结构，以提高该凸起结构1311的强度和稳定性，进而提高该第一限位部131与第一部件11之间的稳定性。
在一些实施例中，该凸起结构1311可以为空心结构。例如，凸起结构1311为第一限位部131的朝向第一部件11凹陷的凹槽，既便于加工，又可以减轻该凸起结构1311的重量，即减轻限位部件13的重量，进而可以减轻电池10的重量。
下面将结合附图对限位部件13的第二限位部132进行描述。图8示出了本申请实施例的限位部件13的结构示意图，例如，该图8可以为如图2至图7所示的限位部件13的结构示意图。图9至图11分别示出了本申请其他实施例的限位部件13的可能的结构示意图，例如，该图9至图11所示的限位部件13可以替代如图8所示的限位部件13。
在本申请实施例中，第二限位部132与第一限位部131形成台阶结构，即该第二限位部132与第一限位部131不位于同一平面，并非齐平设置。这样，可以根据第一部件11和第二部件12沿第一方向Z的高度的不同，合理调整第一限位部131与第二限位部132的位置。例如，若第一部件11包括汇流部件15，第二部件12包括绝缘部件16；沿第一方向Z，该绝缘部件16通常凸出于汇流部件15，设置第一限位部131与第二限位部132形成台阶结构，可以适应凸出的绝缘部件16，便于电池10的组装。
应理解，沿第一方向Z，该第一限位部131与第二限位部132的位置可以根据实际应用灵活设置，例如，可以根据第一方向Z上第一部件11与第二部件12的高度差，合理设置第一限位部131与第二限位部132的位置。例如，如图8所示，沿第一方向Z，该第二限位部132可以高于第一限位部131；再例如，如图9所示，沿第一方向Z，该第二限位部132可以低于第一限位部131，本申请实施例并不限于此。
在一些实施例中，该第二限位部132与第一限位部131也可以不设置为台阶结构。例如，如图10所示，该第一限位部131也可以与第二限位部132齐平设置，以便于加工和组装。
在本申请实施例中，第二限位部132设置有加强结构1321，以提高 该第二限位部132的结构强度和稳定性。具体地，如图8和图11所示，考虑到第二限位部132与第二部件12之间可以不通过连接件实现固定，依靠第一限位部131与第一部件11之间的固定连接，以及第一限位部131与第二限位部132相连，设置第二限位部132与第二部件12抵接，则可以限制第二部件12沿第一方向Z的移动。因此，通过设置加强结构1321可以提高第二限位部132的结构强度，增加该第二限位部132沿第一方向Z发生变形的难度，进而可以稳定地限制第二部件12沿第一方向Z的移动，以提高该限位部件13的限位效果。
应理解，本申请实施例的加强结构1321可以通过多种方式实现，以适用于不同场景。例如，加强结构1321包括第二限位部132的朝向远离第二部件12凸出的凸起，结构简单，易于实现。再例如，该加强结构1321为该第二限位部132的凸起时，该加强结构1321可以为空心结构或者实心结构。若该加强结构1321为空心结构，例如该加结构1321包括第二限位部132朝向远离第二部件12方向凹陷而形成的凸起，既可以增加该限位部件13的第二限位部132的结构强度，相比实心结构还可以减轻限位部件13的重量。若该加强结构1321为实心结构，则可以增加该限位部件13的第二限位部132的结构强度和稳定性。
在本申请实施例中，该第二限位部132包括的加强结构1321的个数可以根据实际应用灵活设置。例如，可以根据该第二限位部132的尺寸，合理设置该加强结构1321的个数。具体地，若该第二限位部132的尺寸较大，则可以设置多个加强结构1321，以提高结构稳定性；若该第二限位部132的尺寸较小，则可以设置少量加强结构1321，以合理利用空间。再例如，还可以根据第二部件12的结构强度需求，合理设置该加强结构1321的个数。具体地，若第二部件12在电池10使用过程中变形以及移位较为严重，则该第二限位部132可以包括多个加强结构1321，以提高结构稳定性，减少第二部件12的移动；相反地，若第二部件12变形以及移位较轻，则该第二限位部132可以包括少量加强结构1321，以减轻限位部件13的重量。
在一些实施例中，第二限位部132设置有多个加强结构1321，以增 加限位部件13的结构强度，进而提高该限位部件13以及第二部件12的结构稳定性，进而提高该电池10的结构稳定性。例如，如图11所示，该第二限位部132可以包括沿第三方向X排列的多个加强结构1321，该第三方向X垂直于第一方向Z，例如，本申请实施例以该第三方向X为电池单体20的厚度方向X为例，但本申请实施例并不限于此。
在一些实施例中，该第二限位部132可以包括一个加强结构1321，以便于加工。
在本申请实施例中，第一限位部131与第一部件11沿第一方向Z固定连接，以使得该限位部件13能够与第一部件11沿第一方向Z相对固定，以限制该限位部件13与第一部件11之间沿第一方向Z的相对位置；另外，限位部件13位于第一部件11和第二部件12的沿第一方向Z的一侧，与第一限位部131相连的第二限位部132可以用于限制第二部件12沿第一方向Z的移动，这样，即使第二限位部132与第二部件12之间不设置有用于固定的连接件，也可以通过该第二限位部132限制第二部件12沿第一方向Z的移动，进而提高电池10的结构稳定性，并且限位部件13结构简单，易于实现，能够减少该限位部件13对电池10的加工和组装的效率的影响。
进一步地，第一限位部131包括朝向第一部件11凸出的凸起结构1311，第一部件11包括开口朝向第一限位部131的凹槽结构111，凸起结构1311容纳于凹槽结构111且与凹槽结构111过盈配合。其中，该凸起结构1311可以为空心结构。第二限位部132与第一限位部131形成台阶结构。第二限位部132设置有加强结构1321。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (13)

  1. 一种电池，其特征在于，包括：
    第一部件(11)；
    第二部件(12)；
    限位部件(13)，所述限位部件(13)位于所述第一部件(11)和所述第二部件(12)的沿第一方向的一侧，所述限位部件(13)包括相连的第一限位部(131)和第二限位部(132)，所述第一限位部(131)与所述第一部件(11)沿所述第一方向固定连接，所述第二限位部(132)用于限制所述第二部件(12)沿所述第一方向移动。
  2. 根据权利要求1所述的电池，其特征在于，所述第一限位部(131)与所述第一部件(11)可拆卸连接。
  3. 根据权利要求1或2所述的电池，其特征在于，所述第一限位部(131)包括朝向所述第一部件(11)凸出的凸起结构(1311)，所述第一部件(11)包括开口朝向所述第一限位部(131)的凹槽结构(111)，所述凸起结构(1311)容纳于所述凹槽结构(111)且与所述凹槽结构(111)过盈配合。
  4. 根据权利要求3所述的电池，其特征在于，自所述凸起结构(1311)的靠近所述第一部件(11)的一端向远离所述第一部件(11)的一端的方向，所述凸起结构(1311)的至少部分区域的沿第二方向的尺寸逐渐减小，所述第二方向垂直于所述第一方向。
  5. 根据权利要求4所述的电池，其特征在于，所述凸起结构(1311)的沿所述第二方向的最大尺寸与最小尺寸的差小于或者等于1mm。
  6. 根据权利要求3至5中任一项所述的电池，其特征在于，所述凸起结构(1311)为空心结构。
  7. 根据权利要求1至6中任一项所述的电池，其特征在于，所述第二限位部(132)与所述第一限位部(131)形成台阶结构。
  8. 根据权利要求1至7中任一项所述的电池，其特征在于，所述第二限位部(132)设置有加强结构(1321)。
  9. 根据权利要求8所述的电池，其特征在于，所述加强结构(1321)包括所述第二限位部(132)的朝向远离所述第二部件(12)凸出的凸起。
  10. 根据权利要求8或9所述的电池，其特征在于，所述第二限位部(132)设置有多个所述加强结构(1321)。
  11. 根据权利要求1至10中任一项所述的电池，其特征在于，所述电池包括：
    多个电池单体(20)；
    汇流部件(15)，用于将所述多个电池单体(20)电连接，所述第一部件(11)包括所述汇流部件(15)；
    绝缘部件(16)，用于固定所述多个电池单体(20)，所述第二部件(12)包括所述绝缘部件(16)。
  12. 根据权利要求1至11中任一项所述的电池，其特征在于，所述限位部件(13)的材料包括聚丙烯PP和/或聚碳酸酯PC。
  13. 一种用电设备，其特征在于，包括如权利要求1至12中任一项所述的电池，所述电池用于为所述用电设备供电。
PCT/CN2024/093728 2023-10-18 2024-05-16 电池和用电设备 Pending WO2025081804A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201758151U (zh) * 2010-06-30 2011-03-09 中国电力科学研究院 一种新型电池模块
CN209860056U (zh) * 2019-04-30 2019-12-27 宁德时代新能源科技股份有限公司 电池模组及电池包
CN111293266A (zh) * 2020-02-26 2020-06-16 中航锂电（洛阳）有限公司 电池模组
CN212874701U (zh) * 2020-08-14 2021-04-02 湖北亿纬动力有限公司 一种电池模组信息采集装置及电池模组

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201758151U (zh) * 2010-06-30 2011-03-09 中国电力科学研究院 一种新型电池模块
CN209860056U (zh) * 2019-04-30 2019-12-27 宁德时代新能源科技股份有限公司 电池模组及电池包
CN111293266A (zh) * 2020-02-26 2020-06-16 中航锂电（洛阳）有限公司 电池模组
CN212874701U (zh) * 2020-08-14 2021-04-02 湖北亿纬动力有限公司 一种电池模组信息采集装置及电池模组

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