WO2024082299A1 - 电池及用电设备 - Google Patents

电池及用电设备 Download PDF

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Publication number
WO2024082299A1
WO2024082299A1 PCT/CN2022/126812 CN2022126812W WO2024082299A1 WO 2024082299 A1 WO2024082299 A1 WO 2024082299A1 CN 2022126812 W CN2022126812 W CN 2022126812W WO 2024082299 A1 WO2024082299 A1 WO 2024082299A1
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WO
WIPO (PCT)
Prior art keywords
wall
section
battery
fixing seat
partition beam
Prior art date
Application number
PCT/CN2022/126812
Other languages
English (en)
French (fr)
Inventor
林新炜
李玲玉
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to PCT/CN2022/126812 priority Critical patent/WO2024082299A1/zh
Priority to CN202321265837.XU priority patent/CN220710553U/zh
Publication of WO2024082299A1 publication Critical patent/WO2024082299A1/zh

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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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery 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
    • 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
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery and an electrical device.
  • the purpose of the present application is to provide a battery and an electrical device, wherein the battery has a high energy density.
  • the present application provides a battery, which includes a case, a battery cell group, a partition beam, a fixing seat and an output pole;
  • the battery cell group is arranged in the case, and the battery cell group includes a plurality of battery cells stacked along a first direction and electrically connected to each other;
  • the partition beam is fixed in the case, and the partition beam is located on one side of the battery cell group along the first direction;
  • the fixing seat is installed on the partition beam;
  • the output pole is used to output the electric energy of the battery cell group, and the output pole is fixed to the fixing seat.
  • the partition beam is a component arranged in the box body for dividing the internal space of the box body, the output pole of the battery cell group is fixed to the fixing seat, and the fixing seat is installed on the partition beam, which can improve the space utilization rate in the box body, thereby making the battery have a higher energy density.
  • the box body includes a bottom wall and side walls, the side walls are arranged around the bottom wall, the partition beams are arranged on the bottom wall, the partition beams extend along the second direction, and the second direction, the first direction and the thickness direction of the bottom wall intersect each other.
  • the side wall and the bottom wall define a space for accommodating the battery cell group
  • the partition beam is arranged on the bottom wall so that the partition beam is stably connected to the box body, so that the fixing seat can be fixed to the partition beam;
  • the partition beam extends along the second direction, and the size of the partition beam in the first direction can be smaller to reduce space occupancy.
  • the partition beam includes a first surface away from the bottom wall, the partition beam is provided with a groove recessed from the first surface toward the bottom wall, and the fixing seat is at least partially disposed in the groove.
  • the groove provides a space for accommodating the fixing seat, and the fixing seat is at least partially arranged in the groove, which can reduce the space occupied by the fixing seat and the partition beam in the thickness direction of the bottom wall after assembly, and reduce the impact of the fixing seat on space utilization.
  • the fixing seat does not protrude from the first surface.
  • the fixing seat after the fixing seat is installed on the partition beam, the fixing seat will not occupy additional space in the thickness direction of the bottom wall, thereby reducing the space occupied in the box and reducing the impact on the energy density of the battery.
  • the fixing base includes a first connection hole
  • the bottom surface of the groove is provided with a second connection hole corresponding to the first connection hole
  • the battery also includes a first fastener, which is configured to be inserted into the first connection hole and the second connection hole to fix the fixing base to the bottom surface of the groove.
  • the first connecting hole corresponds to the second connecting hole
  • the first fastener is inserted into the first connecting hole and the second connecting hole
  • the fixing seat is fixed to the bottom surface of the groove, which is convenient for assembly and operation.
  • the fixing seat includes a seat body and a connecting portion, the output pole is fixed to the seat body, the connecting portion is connected to the seat body, and the first connecting hole is provided in the connecting portion.
  • the output pole is fixed to the seat body, and the connecting part is connected to the partition beam, which facilitates the assembly of the output pole and the fixed seat and the partition beam, and makes the assembly of the output pole and the partition beam stable.
  • the fixing seat further includes a first positioning portion
  • the partition beam includes a second positioning portion corresponding to the first positioning portion
  • the first positioning portion cooperates with the second positioning portion
  • the first positioning portion cooperates with the second positioning portion, and the first connecting hole of the connecting portion cooperates with the second connecting hole of the partition beam, which facilitates the positioning and assembly of the fixing seat and the partition beam, and can also limit the rotation of the fixing seat relative to the partition beam.
  • the seat body includes a second surface facing the bottom surface of the groove, the first positioning portion is a protrusion protruding from the second surface, and the second positioning portion is a first recessed portion arranged on the bottom surface of the groove.
  • the first positioning portion is a protrusion
  • the second positioning portion is a first recessed portion.
  • the protrusion cooperates with the first recessed portion, and the structure is simple, the assembly is convenient, and the operation is convenient.
  • the fixing seat also includes a nut embedded in the seat body, the output pole is provided with a third connecting hole, and the battery also includes a second fastener, the second fastener is passed through the third connecting hole and is threadedly connected to the nut to fix the output pole to the fixing seat.
  • the nut is embedded in the seat body, so that the connection between the nut and the seat body is stable, so that the second fastener is passed through the third connecting hole and threadedly connected to the nut, so that the output pole is fixed to the fixed seat; the second fastener fixes the output pole to the fixed seat, which facilitates the electrical connection between the output pole and the external conductive component (such as a conductive sheet).
  • the external conductive component such as a conductive sheet
  • the seat body and the connecting portion are arranged along the second direction.
  • the seat body and the connecting part are arranged along the second direction, and the structural space of the partition beam can be used to reduce the space occupied by the fixing seat in the first direction, so that the space utilization rate in the box body is higher, and the battery has a higher energy density.
  • the output pole includes a first section and a second section, the first section and the second section are connected to form an L-shaped structure, the first section is electrically connected to a battery cell in the battery cell group closest to the partition beam, and the second section is fixed to the fixing seat.
  • the first section and the second section are connected to form an L-shaped structure, so as to facilitate the connection between the output pole and the battery cell group and the fixing seat, and the assembly is convenient.
  • the first section is located between the battery cell group and the partition beam, the length direction of the first section is parallel to the thickness direction of the bottom wall, and the second section is connected to an end of the first section away from the bottom wall.
  • the first section is located between the battery cell group and the partition beam along the first direction, rationally utilizing the space in the first direction to facilitate the electrical connection between the output pole and the battery cell group; the second section is connected to the end of the first section away from the bottom wall to facilitate the assembly of the fixing seat and the partition beam.
  • a battery cell includes an outer shell and an electrode terminal, the outer shell has a first wall facing the partition beam, the electrode terminal is installed on the first wall, the electrode terminal has a first side surface, the plane where the first side surface is located intersects with the first wall, and the output pole is connected to the first side surface of the electrode terminal of a battery cell in the battery cell group that is closest to the partition beam.
  • the output pole is connected to the first side of the electrode terminal.
  • it is convenient to connect the output pole with the electrode terminal.
  • it can reduce the space occupied by the output pole and the battery cell group in the first direction after assembly.
  • the space utilization rate in the box is high, so that the battery has a higher energy density.
  • the output pole further includes a third segment, the third segment extends from an edge of the first segment in the width direction, the third segment is connected to the first side surface, and the width direction of the first segment intersects with the first direction.
  • the third section extends from the edge of the first section in the width direction, which is convenient for processing and manufacturing; the third section is connected to the third surface, which is convenient for connecting the output pole with the battery cell group.
  • the fixing seat includes a first limiting portion, which abuts against the third section along the thickness direction of the bottom wall to limit the movement of the third section along the thickness direction of the bottom wall.
  • the third section is limited to move along the thickness direction of the bottom wall by the first limiting portion, so that the output pole is stably connected to the fixing seat, reducing the risk of the output pole being separated from the fixing seat.
  • the first limiting portion is located on a side of the third section that is away from the bottom wall.
  • the first limiting portion is located on the side of the third section away from the bottom wall to limit the movement of the output pole along the thickness direction of the bottom wall in the direction away from the bottom wall, and cooperates with the fixed seat installed on the partition beam to constrain the output pole to move along the thickness direction of the bottom wall, thereby further making the assembly of the output pole and the fixed seat stable.
  • the output pole and the fixed seat can be pre-assembled to reduce the difficulty of assembly.
  • the shell includes a first wall and a second wall arranged opposite to each other along a first direction, a third wall and a fourth wall arranged opposite to each other along a second direction, and a fifth wall and a sixth wall arranged opposite to each other along a thickness direction of the bottom wall, an area of the third wall and an area of the fourth wall are both smaller than an area of the first wall, an area of the third wall and an area of the fourth wall are both smaller than an area of the second wall, an area of the fifth wall and an area of the sixth wall are both smaller than an area of the first wall, and an area of the fifth wall and an area of the sixth wall are both smaller than an area of the second wall.
  • the first wall and the second wall are walls of the housing with relatively large areas, and a plurality of battery cells are arranged along the first direction, so that the battery cell group has a compact structure and the battery has a large energy density.
  • the housing further has a second wall arranged opposite to the first wall, and a first area of an edge of the second wall is recessed to form a second recess, and the second recess is used to accommodate an electrode terminal of a battery cell adjacent to the second wall.
  • the second recessed portion can accommodate the electrode terminals of the battery cells adjacent to the second wall, so as to reasonably utilize the assembly space and enable the battery to have a higher energy density.
  • the fixing seat includes a seat body and an extension portion extending from the seat body toward the bottom wall, and along the first direction, the extension portion is located between the first section and the partition beam.
  • the extension portion is located between the first section and the partition beam to isolate the first section from the partition beam and reduce the risk of contact between the output pole and the partition beam.
  • the fixing seat is an insulating member, which can improve the insulation effect between the output pole and the partition beam.
  • the fixing seat includes a second limiting portion, and the second limiting portion is used to limit the movement of the first section along the width direction of the first section.
  • the second limiting portion limits the first section from moving along the width direction of the first section, so that the output pole and the fixing seat are assembled stably.
  • the second limiting portion includes at least two buckles, and the at least two buckles are respectively engaged with two sides of the first section along the width direction.
  • the buckle is provided with a simple structure, which facilitates the assembly of the first section and the second limiting portion.
  • an insulating layer is disposed between the battery cell group and the separation beam.
  • the provision of the insulating layer enables a better insulation effect between the battery cell group and the separation beam, thereby reducing the risk of short circuit between the battery cell group and the separation beam.
  • the present application also provides an electrical device, comprising a battery provided in any of the above embodiments.
  • FIG1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.
  • FIG2 is an exploded view of a battery provided in some embodiments of the present application.
  • FIG3 is a schematic diagram of a partial structure of a battery provided in some embodiments of the present application.
  • FIG4 is a partial enlarged view of point A in FIG3 ;
  • FIG5 is a schematic diagram of a partial structure of a battery provided in some embodiments of the present application.
  • FIG6 is a partial enlarged view of point B in FIG5 ;
  • FIG7 is a schematic diagram of assembling an output pole and a fixing seat provided in some embodiments of the present application.
  • FIG8 is a schematic diagram of the structure of an output pole and a fixing seat provided in some embodiments of the present application.
  • FIG9 is a schematic diagram of assembling an output electrode and a battery cell group provided in some embodiments of the present application.
  • FIG10 is a schematic diagram of the structure of a battery cell and an output electrode provided in some embodiments of the present application.
  • FIG11 is a schematic diagram of assembling a first side surface and a first wall provided in some embodiments of the present application.
  • FIG. 12 is a partial enlarged view of point C in FIG. 3 .
  • Marking description 100 - battery; 10 - box; 11 - first sub-box; 111 - bottom wall; 112 - side wall; 12 - second sub-box; 20-battery cell group; 21-battery cell; 211-housing; 2111-first wall; 2112-second wall; 2113-second recess; 212-electrode terminal; 2121-first side; 30-partitioning beam; 31-first surface; 32-groove; 321-bottom of groove; 322-second connecting hole; 323-second positioning portion; 40-fixing seat; 41-seat body; 411-second surface; 42-connecting portion; 421-first connecting hole; 43-first positioning portion; 44-nut; 45-first limiting portion; 46-extension portion; 47-second limiting portion; 471-clip; 50-output pole; 51-first section; 52-second section; 521-third connecting hole; 53-third section; 60-first fastener; 200-controller; 300-motor; 1000-vehicle.
  • the terms “installed”, “connected”, “connected”, and “attached” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • multiple refers to more than two (including two).
  • multiple groups refers to more than two groups (including two groups)
  • multiple sheets refers to more than two sheets (including two sheets).
  • the battery includes a box body, a partition beam, a battery cell group and end plates arranged on both sides of the battery cell group.
  • the partition beam and the battery cell group are both arranged in the box body.
  • the partition beam divides the interior of the box body into multiple spaces, and the battery cell group is located in at least one of the multiple spaces separated by the partition beam.
  • the output pole is fixed to the fixing seat, and the fixing seat is usually installed on the end plate; in order to protect multiple battery cells and install the fixing seat, the thickness of the end plate is usually thicker, so that the space utilization rate in the box is low and the energy density of the battery is low.
  • the inventor in order to solve the problem of low energy density of the battery caused by low space utilization in the box, the inventor has designed a battery after in-depth research.
  • the fixing base is installed on the partition beam, the thickness of the end plate can be reduced, and the end plate arranged adjacent to the battery cell group can even be eliminated to improve the space utilization in the box, thereby making the battery have a higher energy density.
  • the partition beam is an indispensable component, in the above-mentioned battery, by installing the fixing seat on the partition beam, the thickness of the end plate can be reduced and even the use of the end plate can be reduced, thereby improving the space utilization in the box body and making the battery have a higher energy density.
  • the battery disclosed in the embodiment of the present application can be used in, but not limited to, electrical equipment such as vehicles, ships or aircraft.
  • the battery disclosed in the present application can be used to form a power supply system of the electrical equipment.
  • the embodiment of the present application provides an electric device using a battery as a power source
  • the electric device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric car, a ship, a spacecraft, etc.
  • the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc.
  • the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.
  • FIG. 1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.
  • Vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • a battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000.
  • the battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000, for the circuit system of the vehicle 1000, for example, for the working power requirements during the startup, navigation and operation of the vehicle 1000.
  • the vehicle 1000 may further include a controller 200 and a motor 300 , wherein the controller 200 is used to control the battery 100 to supply power to the motor 300 , for example, to meet the power requirements of starting, navigating, and driving the vehicle 1000 .
  • the battery 100 can not only serve as an operating power source for 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.
  • Figure 2 is an exploded view of a battery provided in some embodiments of the present application.
  • Figure 2 only shows a box and a battery cell, and other components are omitted;
  • Figure 3 is a partial structural schematic diagram of a battery provided in some embodiments of the present application.
  • the present application provides a battery 100, which includes a box 10, a battery cell group 20, a partition beam 30, a fixing seat 40 and an output pole 50.
  • the battery cell group 20 is arranged in the box 10, and the battery cell group 20 includes a plurality of battery cells 21 stacked and electrically connected to each other along a first direction X.
  • the partition beam 30 is fixed in the box 10, and the partition beam 30 is located on one side of the battery cell group 20 along the first direction X.
  • the fixing seat 40 is installed on the partition beam 30.
  • the output pole 50 is used to output the electric energy of the battery cell group 20, and the output pole 50 is fixed to the fixing seat 40.
  • the direction indicated by the letter X is the first direction.
  • the first direction X may be the length direction of the box body 10 , or the first direction X may be the width direction of the box body 10 .
  • the box 10 is used to provide a storage space for the battery cell 21, and the box 10 can adopt a variety of structures.
  • the box 10 may include a first sub-box 11 and a second sub-box 12, and the first sub-box 11 and the second sub-box 12 cover each other, and the first sub-box 11 and the second sub-box 12 jointly define a storage space for accommodating the battery cell 21.
  • the first sub-box 11 can be a hollow structure with one end open, and the second sub-box 12 can be a plate-like structure, and the second sub-box 12 covers the open side of the first sub-box 11, so that the first sub-box 11 and the second sub-box 12 jointly define a storage space; the first sub-box 11 and the second sub-box 12 can also be hollow structures with one side open, and the open side of the first sub-box 11 covers the open side of the second sub-box 12.
  • the material of the box body 10 can be aluminum, aluminum alloy, stainless steel, etc., and has high strength.
  • multiple battery cells 21 can be connected in series, in parallel, or in mixed connection.
  • Mixed connection means that multiple battery cells 21 are connected in series and in parallel.
  • Multiple battery cells 21 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by multiple battery cells 21 is accommodated in the box 10.
  • the battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between multiple battery cells 21.
  • the battery cell 21 may be a secondary battery or a primary battery; the battery cell 21 may also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto.
  • the partition beam 30 is a component disposed in the box body 10.
  • the partition beam 30 is used to separate the box body 10 into multiple spaces, and the multiple spaces can respectively accommodate the battery cell group 20 and other components (such as wiring harnesses, etc.).
  • the partition beam 30 is disposed in the box body 10, which can also improve the overall strength of the box body 10.
  • the partition beam 30 may be disposed in various positions in the box body 10 according to different requirements.
  • the partition beam 30 may be located on one side of the battery cell group 20 along the first direction X.
  • the battery cell group 20 may be located between two partition beams 30 .
  • the material of the partition beam 30 may be the same as or different from the material of the box body 10.
  • the partition beam 30 may be made of aluminum, aluminum alloy, stainless steel, etc., and has high strength.
  • the fixing seat 40 is a component for fixing the output pole 50 ; the fixing seat 40 may be an insulating component to reduce the risk of short circuit caused by contact between the output pole 50 and other conductive parts.
  • the fixing seat 40 and the partition beam 30 may be assembled in various ways.
  • the fixing seat 40 may be snap-fitted with the partition beam 30 , or the fixing seat 40 may be detachably connected with the partition beam 30 via a connecting component.
  • the output electrode 50 is a conductive component used to conduct the electrical energy of the battery cell group 20.
  • the material of the output electrode 50 can be copper, aluminum, etc.
  • the multiple battery cells 21 of the battery cell group 20 are stacked along the first direction X, the partition beam 30 is arranged on one side of the battery cell group 20 along the first direction X, the output pole 50 of the battery cell group 20 is fixed to the fixing seat 40, and the fixing seat 40 is installed on the partition beam 30, which can reduce the thickness of the end plate adjacent to the battery cell group 20, and even eliminate the use of the end plate, thereby improving the space utilization in the box 10, and thus making the battery 100 have a higher energy density.
  • the box body 10 includes a bottom wall 111 and a side wall 112.
  • the side wall 112 is arranged around the bottom wall 111.
  • the partition beam 30 is arranged on the bottom wall 111.
  • the partition beam 30 extends along the second direction Y.
  • the second direction Y, the first direction X and the thickness direction Z of the bottom wall 111 intersect each other.
  • the direction indicated by the letter Y is the second direction, which may be the width direction of the box 10, or the length direction of the box 10.
  • the direction indicated by the letter Z is the thickness direction Z of the bottom wall 111, which may be the height direction of the box 10.
  • the second direction Y, the first direction X, and the thickness direction Z of the bottom wall 111 may intersect in various ways.
  • the second direction Y may be perpendicular to the first direction X, and the second direction Y and the first direction X may not be perpendicular to the thickness direction Z of the bottom wall 111; or, the second direction Y may be perpendicular to the thickness direction Z of the bottom wall 111, and the second direction Y and the thickness direction Z of the bottom wall 111 may not be perpendicular to the first direction X; or, the first direction X may be perpendicular to the thickness direction Z of the bottom wall 111, and the first direction X and the thickness direction Z of the bottom wall 111 may not be perpendicular to the second direction Y; or, the second direction Y, the first direction X, and the thickness direction Z of the bottom wall 111 may be perpendicular to each other.
  • the second direction Y, the first direction X, and the thickness direction Z of the bottom wall 111 are perpendicular to each other.
  • the side wall 112 and the bottom wall 111 enclose a space for accommodating the battery cell group 20, and the partition beam 30 is disposed in the space.
  • the side wall 112 can be disposed at the edge of the bottom wall 111 so that the space enclosed by the side wall 112 and the bottom wall 111 has a larger capacity.
  • the side wall 112 and the bottom wall 111 may be connected in various ways.
  • the side wall 112 and the bottom wall 111 may be integrally formed, such as the side wall 112 and the bottom wall 111 are extruded from aluminum; or, the side wall 112 and the bottom wall 111 may be separately provided and connected by welding.
  • the partition beam 30 is disposed on the bottom wall 111, and the partition beam 30 can be welded to the bottom wall 111 to ensure a stable connection between the partition beam 30 and the bottom wall 111.
  • the material of the partition beam 30 can be the same as that of the bottom wall 111 to facilitate welding of the partition beam 30 and the bottom wall 111.
  • the partition beam 30 extends along the second direction Y.
  • the dimension of the partition beam 30 in the second direction Y is larger than the dimensions of the partition beam 30 in other directions.
  • the length direction of the partition beam 30 may be parallel to the second direction Y.
  • the thickness direction of the partition beam 30 may be parallel to the first direction X.
  • the two opposite ends of the partition beam 30 along the second direction Y can be connected to the side wall 112 respectively, so that the connection area between the partition beam 30 and the box body 10 is large, and the connection between the partition beam 30 and the box body 10 is stable.
  • the two ends of the partition beam 30 can be welded to the side wall 112, so that the partition beam 30 and the side wall 112 are firmly connected, thereby improving the overall strength of the box body 10.
  • the side wall 112 and the bottom wall 111 define a space for accommodating the battery cell group 20, and the partition beam 30 is arranged on the bottom wall 111, so that the partition beam 30 is stably connected to the box body 10, so that the fixing seat 40 is fixed to the partition beam 30; the partition beam 30 extends along the second direction Y, and the size of the partition beam 30 in the first direction X can be smaller to reduce space occupancy.
  • the partition beam 30 includes a first surface 31 away from the bottom wall 111, and the partition beam 30 is provided with a groove 32 recessed from the first surface 31 toward the bottom wall 111, and the fixing seat 40 is at least partially disposed in the groove 32.
  • the first surface 31 is a surface of the partition beam 30 away from the bottom wall 111.
  • the partition beam 30 also includes a third surface (not shown) facing the bottom wall 111, the third surface and the first surface 31 are arranged opposite to each other along the thickness direction Z of the bottom wall 111, and the third surface can contact the bottom wall 111, so that the bottom wall 111 has a better supporting effect on the partition beam 30.
  • the groove 32 is a groove formed by being recessed from the first surface 31 toward the bottom wall 111, and the groove depth direction of the groove 32 is directed from the first surface 31 to the bottom wall 111.
  • the profile of the groove 32 is similar to the profile of the fixing seat 40, so that at least a portion of the fixing seat 40 can be accommodated in the groove 32.
  • the assembly method of the fixing seat 40 and the groove 32 can be selected according to actual conditions.
  • a part of the fixing seat 40 can be disposed in the groove 32 , or the entire fixing seat 40 can be disposed in the groove 32 .
  • the groove 32 provides a space for accommodating the fixing seat 40, and the fixing seat 40 is at least partially arranged in the groove 32, which can reduce the space occupied by the fixing seat 40 and the partition beam 30 in the thickness direction Z of the bottom wall 111 after being assembled, and reduce the influence of the fixing seat 40 on the space utilization.
  • the fixing seat 40 does not protrude from the first surface 31 .
  • the fixing seat 40 does not protrude from the first surface 31 means that, in the thickness direction Z of the bottom wall 111, the fixing seat 40 does not protrude from the first surface 31. Specifically, when the fixing seat 40 is assembled with the partition beam 30, the entirety of the fixing seat 40 is located in the groove 32, and the surface of the fixing seat 40 away from the bottom wall 111 is lower than the first surface 31, or, the surface of the fixing seat 40 away from the bottom wall 111 is coplanar with the first surface 31.
  • the fixing seat 40 after the fixing seat 40 is installed on the partition beam 30 , the fixing seat 40 does not occupy additional space in the thickness direction Z of the bottom wall 111 , thereby reducing the space occupied in the box body 10 and reducing the impact on the energy density of the battery 100 .
  • FIG. 5 is a schematic diagram of a partial structure of a battery provided in some embodiments of the present application
  • FIG. 6 is a partial enlarged view of B in FIG. 5
  • the fixing seat 40 includes a first connection hole 421
  • the groove bottom surface 321 of the groove 32 is provided with a second connection hole 322 corresponding to the first connection hole 421
  • the battery 100 further includes a first fastener 60
  • the first fastener 60 is configured to be inserted into the first connection hole 421 and the second connection hole 322 to fix the fixing seat 40 to the groove bottom surface 321 .
  • the first connection hole 421 is a hole provided on the fixing seat 40 ; the first connection hole 421 may be a through hole, and the first connection hole 421 is used for inserting the first fastener 60 .
  • the second connection hole 322 is a hole disposed on the groove bottom surface 321 of the groove 32 .
  • the second connection hole 322 is disposed corresponding to the first connection hole 421 , so that the first fastener 60 can be inserted into the first connection hole 421 and the second connection hole 322 .
  • the second connecting hole 322 can be a threaded hole, and the first fastener 60 can be a component with threads (such as a bolt, etc.).
  • the first fastener 60 can be threadedly matched with the second connecting hole 322 to fix the fixing seat 40 to the bottom surface 321 of the groove 32.
  • the fixing seat 40 may be in contact with the groove bottom surface 321 of the groove 32 .
  • the first connection hole 421 corresponds to the second connection hole 322
  • the first fastener 60 is inserted into the first connection hole 421 and the second connection hole 322
  • the fixing seat 40 is fixed to the bottom surface 321 of the groove, which is convenient for assembly and operation.
  • the fixing seat 40 includes a seat body 41 and a connecting portion 42, the output pole 50 is fixed to the seat body 41, the connecting portion 42 is connected to the seat body 41, and the first connecting hole 421 is provided in the connecting portion 42.
  • the seat body 41 and the connecting portion 42 are two components of the fixing seat 40 .
  • the seat body 41 is used to fix the output pole 50
  • the connecting portion 42 is used to connect to the partition beam 30 .
  • connection method between the connecting part 42 and the seat body 41 can be in various forms.
  • the connecting part 42 can be integrally formed on the seat body 41; or, the connecting part 42 can be separately provided with the seat body 41 and the two are fixed together, for example, the connecting part 42 and the seat body 41 are snap-fitted together, or the connecting part 42 and the seat body 41 are riveted together.
  • the first connection hole 421 is a through hole provided in the connection part 42 so as to facilitate the connection part 42 to be connected and matched with the groove bottom surface 321 of the groove 32.
  • the connection part 42 may have a surface facing the groove bottom surface 321 of the groove 32 so as to facilitate the connection part 42 to be able to fit with the groove bottom surface 321 of the groove 32.
  • the output pole 50 is fixed to the seat body 41, and the connecting portion 42 is connected to the partition beam 30, which facilitates the assembly of the output pole 50 with the fixed seat 40 and the assembly of the fixed seat 40 with the partition beam 30, and makes the assembly of the output pole 50 and the partition beam 30 stable.
  • the fixing seat 40 further includes a first positioning portion 43
  • the partition beam 30 includes a second positioning portion 323 corresponding to the first positioning portion 43
  • the first positioning portion 43 cooperates with the second positioning portion 323 .
  • the first positioning portion 43 is a portion of the fixing seat 40 for positioning and cooperating with the partition beam 30.
  • the second positioning portion 323 is a portion of the partition beam 30 for cooperating with the first positioning portion 43 of the fixing seat 40.
  • the first positioning portion 43 and the second positioning portion 323 may be matched in various ways.
  • the first positioning portion 43 and the second positioning portion 323 may be matched in a plug-in manner of a protrusion and a recess, that is, one of the first positioning portion 43 and the second positioning portion 323 is a protrusion and the other is a recess; or, the first positioning portion 43 and the second positioning portion 323 may be matched in a snap-fit manner of a buckle and a slot, that is, one of the first positioning portion 43 and the second positioning portion 323 is a buckle and the other is a slot.
  • the first positioning portion 43 cooperates with the second positioning portion 323, and the first connecting hole 421 of the connecting portion 42 cooperates with the second connecting hole 322 of the partition beam 30, which facilitates the positioning and assembly of the fixing seat 40 and the partition beam 30, and can also limit the rotation of the fixing seat 40 relative to the partition beam 30.
  • the seat body 41 includes a second surface 411 facing the groove bottom surface 321 .
  • the first positioning portion 43 is a protrusion protruding from the second surface 411 .
  • the second positioning portion 323 is a first recessed portion disposed on the groove bottom surface 321 .
  • the second surface 411 is a surface of the seat body 41 facing the groove bottom surface 321 .
  • the second surface 411 can fit with the groove bottom surface 321 of the groove 32 to facilitate the positioning and cooperation between the seat body 41 and the groove 32 .
  • the first positioning portion 43 is a protrusion protruding from the second surface 411; the second positioning portion 323 is a first recessed portion provided on the groove bottom surface 321 of the groove 32, and the first recessed portion is formed by the groove bottom surface 321 being recessed toward the bottom wall 111.
  • the contour of the first recessed portion matches the contour of the protrusion so that the protrusion can be inserted into the first recessed portion.
  • the protrusion is inserted into the first recessed portion to achieve the positioning of the fixing seat 40 and the partition beam 30, and then the first connecting hole 421 is made to correspond to the second connecting hole 322, and the first fastener 60 is inserted into the first connecting hole 421 and the second connecting hole 322 to complete the assembly of the fixing seat 40 and the partition beam 30.
  • the first positioning portion 43 is a protrusion
  • the second positioning portion 323 is a first recess.
  • the protrusion cooperates with the first recess, and the structure is simple, the assembly is convenient, and the operation is convenient.
  • the fixing seat 40 also includes a nut 44, which is embedded in the seat body 41.
  • the output pole 50 is provided with a third connecting hole 521.
  • the battery 100 also includes a second fastener (not shown in the figure), which is passed through the third connecting hole 521 and is threadedly connected to the nut 44 to fix the output pole 50 to the fixing seat 40.
  • the nut 44 is embedded in the seat body 41, so that the nut 44 is firmly connected to the seat body 41.
  • the matching process of the nut 44 and the seat body 41 can be: the nut 44 is matched with the molten plastic (or other insulating material) through a mold, and the matching structure of the seat body 41 and the nut 44 is formed after the plastic (or other insulating material) solidifies.
  • the other components of the fixing base 40 are all insulating structures. Only the nut 44 can be electrically connected to the output pole 50 , and the other components are insulated from the output pole 50 and the partition beam 30 .
  • the nut 44 and the seat body 41 may be interference fit, so that the nut 44 and the seat body 41 are firmly connected. In other embodiments, the nut 44 and the seat body 41 may be bonded together by glue.
  • the third connection hole 521 may be a through hole provided on the output pole 50 .
  • the third connection hole 521 corresponds to the threaded hole of the nut 44 for inserting the second fastener.
  • the second fastener is a component with threads, for example, the second fastener may be a bolt, or the second fastener may be a rod with threads.
  • the second fastener may be a conductive component.
  • the nut 44 is embedded in the seat body 41, so that the connection between the nut 44 and the seat body 41 is stable, so that the second fastener is passed through the third connecting hole 521 and threadedly connected with the nut 44, so that the output pole 50 is fixed to the fixed seat 40; the second fastener fixes the output pole 50 to the fixed seat 40, which facilitates the electrical connection between the output pole 50 and the external conductive component (such as a conductive sheet).
  • the external conductive component such as a conductive sheet
  • the seat body 41 and the connecting portion 42 are arranged along the second direction Y.
  • the partition beam 30 extends along the second direction Y, and the seat body 41 and the connecting portion 42 are arranged along the second direction Y.
  • the structural space of the partition beam 30 can be utilized to reduce the space occupied by the fixing seat 40 in the first direction X, so that the space utilization rate in the box body 10 is higher, and the battery 100 has a higher energy density.
  • the output pole 50 includes a first section 51 and a second section 52.
  • the first section 51 and the second section 52 are connected to form an L-shaped structure.
  • the first section 51 is electrically connected to a battery cell 21 (see Figure 4) closest to the partition beam 30 in the battery cell group 20 (see Figure 3), and the second section 52 is fixed to the fixing seat 40.
  • the first section 51 and the second section 52 are two components of the output pole 50.
  • the connection method between the first section 51 and the second section 52 can be in various forms.
  • the first section 51 and the second section 52 can be integrally formed, and the second section 52 is bent relative to the first section 51 to form an L-shaped structure.
  • the first section 51 and the second section 52 can also be welded to form an L-shaped structure.
  • the first section 51 is electrically connected to a battery cell 21 in the battery cell group 20 that is closest to the partition beam 30 , so as to facilitate the electrical connection between the output pole 50 and the battery cell group 20 .
  • the second section 52 is fixed to the fixing base 40 to facilitate connection with an external conductive component.
  • the first section 51 and the second section 52 are connected to form an L-shaped structure, so as to facilitate the connection between the output pole 50 and the battery cell group 20 and the fixing seat 40, and the assembly is convenient.
  • FIG9 is a schematic diagram of the assembly of the output pole and the battery cell group provided by some embodiments of the present application, and the partition beam 30 is not shown in FIG9 .
  • the first section 51 is located between the battery cell group 20 and the partition beam 30 (see FIG3 ), the length direction of the first section 51 is parallel to the thickness direction Z of the bottom wall 111, and the second section 52 is connected to the end of the first section 51 away from the bottom wall 111.
  • the first section 51 is located between the battery cell group 20 and the partition beam 30 along the first direction X, and the space in the first direction X is reasonably utilized to facilitate the electrical connection between the output pole 50 and the battery cell group 20 .
  • the first section 51 may extend along the thickness direction Z of the bottom wall 111 , and the second section 52 is connected to an end of the first section 51 away from the bottom wall 111 , so as to facilitate the assembly of the fixing seat 40 and the partition beam 30 .
  • the battery cell 21 includes a shell 211 and an electrode terminal 212, the shell 211 has a first wall 2111 facing the partition beam 30 (see Figure 3), the electrode terminal 212 is installed on the first wall 2111, the electrode terminal 212 has a first side surface 2121, the plane where the first side surface 2121 is located intersects with the first wall 2111, and the output pole 50 is connected to the first side surface 2121 of the electrode terminal 212 of a battery cell 21 closest to the partition beam 30 in the battery cell group 20 (see Figure 3).
  • the housing 211 includes a shell and a cover.
  • the shell has an opening, and the cover closes the opening to isolate the internal environment of the battery cell 21 from the external environment.
  • the shell is a component used to cooperate with the cover to form the internal environment of the battery cell 21, wherein the formed internal environment can be used to accommodate the electrode assembly, electrolyte and other components.
  • the shell and the cover can be independent components.
  • the shell can be of various shapes and sizes. Specifically, the shape of the shell can be determined according to the specific shape and size of the electrode assembly.
  • the material of the shell can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.
  • the embodiment of the present application takes the shell as a rectangular parallelepiped as an example.
  • the cover body refers to a component that covers the opening of the shell to isolate the internal environment of the battery cell 21 from the external environment.
  • the shape of the cover body can be adapted to the shape of the shell to match the shell.
  • the cover body can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the cover body is not easily deformed when squeezed and collided, so that the battery cell 21 can have a higher structural strength and the safety performance can also be improved.
  • Functional components such as electrode terminals 212 can be provided on the cover body. The electrode terminal 212 can be used to electrically connect to the electrode assembly for outputting or inputting electrical energy of the battery cell 21.
  • the material of the cover body can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application are not particularly limited to this.
  • an insulating structure can also be provided on the inner side of the cover body, and the insulating structure can be used to isolate the electrical connection part 42 in the shell from the cover body to reduce the risk of short circuit.
  • the insulating structure can be plastic, rubber, etc.
  • the battery cell 21 also includes an electrode assembly, which is a component in the battery cell 21 where an electrochemical reaction occurs.
  • One or more electrode assemblies may be contained in the housing.
  • the electrode assembly is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet, and the separator is used to separate the positive electrode sheet and the negative electrode sheet to avoid short circuits between the positive electrode sheet and the negative electrode sheet.
  • the parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body of the battery cell assembly, and the parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute a pole ear.
  • the positive pole ear and the negative pole ear may be located together at one end of the main body or respectively at both ends of the main body.
  • the positive active material and the negative active material react with the electrolyte, and the pole ear connects the electrode terminal 212 to form a current loop.
  • the first wall 2111 is a wall of the housing 211 facing the partition beam 30 , and the first wall 2111 may be perpendicular to the first direction X.
  • the first wall 2111 may be a cover, or the first wall 2111 may be a wall of the housing.
  • the first wall 2111 is a cover to facilitate assembly of the electrode terminal 212 and the first wall 2111 .
  • the electrode terminal 212 is installed on the first wall 2111 and has a first side surface 2121 and a first end surface.
  • the first end surface is the surface of the electrode terminal 212 away from the first wall 2111.
  • the plane where the first side surface 2121 is located intersects with the first wall 2111 and the first end surface.
  • FIG. 11 is a schematic diagram of the assembly of the first side and the first wall provided in some embodiments of the present application.
  • the plane where the first side 2121 is located intersects with the first wall 2111, and the plane where the first side 2121 is located can be parallel to the thickness direction of the first wall 2111, or the plane where the first side 2121 is located can be inclined to the thickness direction of the first wall 2111.
  • the angle ⁇ between the plane where the first side 2121 is located and the first wall 2111 is 60° to 120°; preferably, the angle ⁇ between the plane where the first side 2121 is located and the first wall 2111 is 85° to 95°; preferably, the plane where the first side 2121 is located can be perpendicular to the first wall 2111, that is, the plane where the first side 2121 is located can be parallel to the thickness direction of the first wall 2111, so as to facilitate the connection between the first side 2121 and the output pole 50.
  • the first side surface 2121 may be welded to the output electrode 50 , so that the output electrode 50 and the electrode terminal 212 are firmly connected.
  • the output pole 50 is connected to the first side surface 2121 of the electrode terminal 212. On the one hand, it is convenient to connect the output pole 50 with the electrode terminal 212. On the other hand, it can reduce the space occupied by the output pole 50 and the battery cell group 20 in the first direction X after assembly. The space utilization rate in the box body 10 is high, so that the battery 100 has a higher energy density.
  • the output pole 50 also includes a third segment 53, which extends from the edge of the first segment 51 in the width direction.
  • the third segment 53 is connected to the first side surface 2121, and the width direction of the first segment 51 intersects with the first direction X.
  • the width direction of the first segment 51 may be parallel to the second direction Y.
  • the angle between the width direction of the first section 51 and the first direction X can be selected according to actual circumstances.
  • the width direction of the first section 51 is perpendicular to the first direction X.
  • the third section 53 is a component of the output pole 50, and the third section 53 extends from the edge of the first section 51 in the width direction, and the third section 53 can be formed by bending relative to the first section 51.
  • the third section 53, the first section 51, and the second section 52 can be integrally formed, for example, the output pole 50 is formed by stamping a metal part.
  • the extension direction of the third section 53 may be parallel to the first side surface 2121 , so that the third section 53 is connected to the first side surface 2121 .
  • the width direction of the first section 51 is perpendicular to the first direction X, the length direction of the first section 51 can be parallel to the thickness direction Z of the bottom wall 111, the thickness direction of the first section 51 can be parallel to the first direction X, and in the first direction X, the size of the first section 51 can be smaller to reduce the space occupied by the output pole 50.
  • the third section 53 extends from the edge of the first section 51 in the width direction, which is convenient for processing and manufacturing; the third section 53 is connected to the third surface, which is convenient for connecting the output pole 50 with the battery cell group 20.
  • the fixing seat 40 includes a first limiting portion 45, which abuts against the third section 53 along the thickness direction Z of the bottom wall 111 to limit the movement of the third section 53 along the thickness direction Z of the bottom wall 111.
  • the first limiting portion 45 is a portion of the fixing seat 40 used to limit the movement of the third section 53 along the thickness direction Z of the bottom wall 111.
  • the first limiting portion 45 has a plane perpendicular to the thickness direction Z of the bottom wall 111, and the plane can contact the third section 53, thereby limiting the movement of the third section 53 along the thickness direction Z of the bottom wall 111.
  • the first limiting portion 45 is provided on the extension portion 46 described below; optionally, the first limiting portion 45 is integrally formed with the extension portion 46 described below.
  • the first limiting portion 45 can have various structural forms.
  • the first limiting portion 45 can be a convex portion, which is located on one side of the third section 53 along the thickness direction of the bottom wall 111, and abuts against the third section 53 along the thickness direction Z of the bottom wall 111; or, the first limiting portion 45 can also be an annular structure, and the third section 53 is arranged in the annular structure, and the inner wall of the annular structure abuts against the third section 53 along the thickness direction Z of the bottom wall 111.
  • the first limiting portion 45 limits the third section 53 in different ways according to the different setting positions of the first limiting portion 45.
  • the first limiting portion 45 can limit the third section 53 from moving along the thickness direction Z of the bottom wall 111 toward the bottom wall 111, or the first limiting portion 45 can limit the third section 53 from moving along the thickness direction Z of the bottom wall 111 toward away from the bottom wall 111.
  • the first limiting portion 45 limits the third section 53 from moving along the thickness direction Z of the bottom wall 111 , so that the output pole 50 is stably connected to the fixing seat 40 , reducing the risk of the output pole 50 being separated from the fixing seat 40 .
  • the first limiting portion 45 is located on a side of the third section 53 that is away from the bottom wall 111 (see FIG. 3 ).
  • the first limiting portion 45 is located on a side of the third section 53 away from the bottom wall 111 , and abuts against the third section 53 along the thickness direction Z of the bottom wall 111 , so that the first limiting portion 45 limits the third section 53 from moving away from the bottom wall 111 .
  • the first limiting portion 45 is located on the side of the third section 53 away from the bottom wall 111, so as to limit the movement of the output pole 50 along the thickness direction Z of the bottom wall 111 in the direction away from the bottom wall 111, and cooperates with the fixed seat 40 installed on the partition beam 30 to constrain the output pole 50 to move along the thickness direction Z of the bottom wall 111, thereby further making the assembly of the output pole 50 and the fixed seat 40 stable.
  • the output pole 50 and the fixed seat 40 can be pre-assembled to reduce the difficulty of assembly.
  • the housing 211 includes a first wall 2111 and a second wall 2112 relatively arranged along a first direction X, a third wall (not shown in the figure) and a fourth wall (not shown in the figure) relatively arranged along a second direction Y, and a fifth wall (not shown in the figure) and a sixth wall (not shown in the figure) relatively arranged along a thickness direction Z of the bottom wall 111, the area of the third wall and the area of the fourth wall are both smaller than the area of the first wall 2111, the area of the third wall and the area of the fourth wall are both smaller than the area of the second wall 2112, the area of the fifth wall and the area of the sixth wall are both smaller than the area of the first wall 2111, and the area of the fifth wall and the area of the sixth wall are both smaller than the area of the first wall 2111, and the area of the fifth wall and the area of the sixth wall are both smaller than the area of the first wall 2111, and the area of the fifth wall and the area of the sixth wall are both smaller than the
  • the first wall 2111 , the second wall 2112 , the third wall, the fourth wall, the fifth wall and the sixth wall are walls constituting the outer shell 211 , and these walls may enclose a space for accommodating the electrode assembly.
  • the first wall 2111 and the second wall 2112 are walls of relatively large area of the housing 211 , and the first wall 2111 and the second wall 2112 are arranged opposite to each other along the first direction X.
  • the plurality of battery cells 21 are arranged along the first direction X, so that the battery cell group 20 has a compact structure and the battery 100 has a large energy density.
  • the housing 211 further has a second wall 2112 arranged opposite to the first wall 2111, and the first area of the edge of the second wall 2112 is sunken to form a second recessed portion 2113, and the second recessed portion 2113 is used to accommodate the electrode terminal 212 of the battery cell 21 adjacent to the second wall 2112.
  • the second wall 2112 is disposed opposite to the first wall 2111 along the first direction X.
  • the first region is an edge region of the second wall 2112, and along the first direction X, the first region corresponds to a region of the first wall 2111 where the electrode terminal 212 is mounted.
  • the first region is recessed toward the first wall 2111 along the first direction X to form a second recess 2113.
  • the depth of the second recess 2113 is greater than the height of the electrode terminal 212 protruding from the first wall 2111. It is understandable that the electrode terminal 212 of the battery cell 21 adjacent to the second wall 2112 may also be only partially accommodated in the second recess 2113.
  • the surface of the second wall 2112 may be provided with an insulating structure, so that when a plurality of battery cells 21 are stacked, the second wall 2112 is insulated and isolated from the electrode terminal 212 of the adjacent battery cell 21.
  • the insulating structure may also be provided on the surface of the electrode terminal 212 away from the first wall 2111, so that when a plurality of battery cells 21 are stacked, the electrode terminal 212 may be insulated and isolated from the second wall 2112 of the battery cell 21 adjacent to the first wall 2111.
  • the second recess 2113 can accommodate the electrode terminal 212 of the battery cell 21 adjacent to the second wall 2112, and reasonably utilize the assembly space, so that the battery 100 has a higher energy density.
  • the fixing seat 40 includes a seat body 41 and an extension portion 46 extending from the seat body 41 toward the bottom wall 111.
  • the extension portion 46 is located between the first section 51 and the partition beam 30 (see Figure 3).
  • the seat body 41 is a portion of the fixing seat 40 for fixing the second section 52.
  • the second section 52 can fit with the seat body 41 so that the second section 52 and the seat body 41 have a larger connection area.
  • the extension portion 46 is a portion of the fixing seat 40 extending from the seat body 41 .
  • the extension portion 46 and the seat body 41 may be integrally formed to facilitate processing and manufacturing.
  • the fixing seat 40 can be an insulating member, which can improve the insulation effect between the output pole 50 and the partition beam 30.
  • the fixing seat 40 includes a second limiting portion 47 , and the second limiting portion 47 is used to limit the movement of the first section 51 along the width direction of the first section 51 .
  • the second limiting portion 47 is a portion of the fixing seat 40 used to limit the first section 51 from moving along the width direction of the first section 51.
  • the second limiting portion 47 is disposed on the extending portion 46; optionally, the second limiting portion 47 and the extending portion 46 are integrally formed.
  • the first section 51 cooperates with the second limiter 47 , and the second limiter 47 limits the first section 51 from moving along the width direction of the first section 51 , so that the output pole 50 and the fixing seat 40 are assembled stably.
  • the second limiting portion 47 can limit the first section 51 from moving along one side or both sides of the width direction of the first section 51.
  • the second limiting portion 47 is a convex portion provided on one side of the width direction of the first section 51
  • the second section 52 limits the first section 51 from moving along one side of the width direction of the first section 51; or, when the second limiting portion 47 is provided on both sides of the width direction of the first section 51, the second limiting portion 47 limits the first section 51 from moving along both sides of the width direction of the first section 51.
  • the second limiting portion 47 includes at least two buckles 471 , and the at least two buckles 471 are respectively engaged with two sides of the first section 51 along the width direction.
  • At least two clips 471 are arranged opposite to each other along the width direction of the first section 51 to form a space for accommodating the first section 51.
  • at least two clips 471 limit the first section 51 from both sides of the width direction of the first section 51 respectively.
  • the number of the buckles 471 can be multiple, and the multiple buckles 471 are distributed on both sides of the first section 51 along the width direction.
  • the multiple buckles 471 can be distributed symmetrically or asymmetrically.
  • one buckle 471 can be distributed on one side of the first section 51 in the width direction, and two buckles 471 can be distributed on the other side of the first section 51 in the width direction; or, as shown in Figures 7 and 8, one buckle 471 can be distributed on both sides of the first section 51 in the width direction.
  • two clips 471 can be arranged on the edges of the extension portion 46 on both sides along the width direction of the first section 51 so that the extension portion 46 and the first section 51 have a larger connection area.
  • the two buckles 471 can also cooperate with the extension portion 46 to limit the movement of the first section 51 along the first direction X.
  • the buckle 471 is provided with a simple structure, and is convenient for assembling the first section 51 and the second limiting portion 47 .
  • the two buckles 471 can be elastically deformed so that the two buckles 471 can be snap-fitted with the first section 51 .
  • the first section 51 When the first section 51 cooperates with the two buckles 471, the first section 51 can squeeze the two buckles 471 along the first direction X, and the two buckles 471 are deformed so that the distance between the two buckles 471 along the width direction of the first section 51 increases, and the first section 51 enters the space formed between the two buckles 471. After the first section 51 enters the space, the two buckles 471 return to their original shapes, and the two buckles 471 are respectively engaged with the two sides of the width direction of the first section 51.
  • an insulating layer (not shown in the drawings) is disposed between the battery cell group 20 and the separation beam 30 .
  • a surface of one battery cell 21 in the battery cell group 20 that is closest to the separation beam 30 and faces the separation beam 30 may be provided with an insulating layer, or a surface of the separation beam 30 that faces the battery cell group 20 may be provided with an insulating layer.
  • the provision of the insulating layer enables a good insulation effect between the battery cell group 20 and the separation beam 30 , thereby reducing the risk of short circuit caused by contact between the battery cell group 20 and the separation beam 30 .
  • the present application further provides an electric device, which includes the battery 100 provided in any of the above embodiments, and the battery 100 is used to provide electric energy.
  • the electrical equipment may be any of the aforementioned devices or systems using the battery 100 .
  • the present application provides a battery 100, which includes a box body 10, a battery cell group 20, a partition beam 30, a fixing seat 40, an output pole 50, a first fastener 60 and a second fastener.
  • the box body 10 is in a rectangular parallelepiped shape, and includes a first sub-box body 11 and a second sub-box body 12.
  • the first sub-box body 11 includes a bottom wall 111 and a side wall 112.
  • the side wall 112 is arranged around the bottom wall 111.
  • the second sub-box body 12 is arranged on a side of the side wall 112 away from the bottom wall 111.
  • the first sub-box body 11 and the second sub-box body 12 are buckled to form a receiving space.
  • the battery cell group 20, the partition beam 30, the fixing seat 40 and the output pole 50 are all arranged in the receiving space.
  • the battery cell group 20 includes a plurality of battery cells 21 stacked and electrically connected to each other along a first direction X.
  • the battery cell 21 includes a housing 211 and an electrode terminal 212.
  • the housing 211 includes a first wall 2111 and a second wall 2112 arranged opposite to each other along the first direction X, a third wall and a fourth wall arranged opposite to each other along the second direction Y, and a fifth wall and a sixth wall arranged opposite to each other along the thickness direction Z of the bottom wall 111.
  • the area of the third wall and the fourth wall are both smaller than the area of the first wall 2111, the area of the third wall and the fourth wall are both smaller than the area of the second wall 2112, the area of the fifth wall and the sixth wall are both smaller than the area of the first wall 2111, and the area of the fifth wall and the sixth wall are both smaller than the area of the second wall 2112.
  • the electrode terminal 212 is mounted on the first wall 2111.
  • the electrode terminal 212 has a first side surface 2121.
  • the plane where the first side surface 2121 is located intersects with the first wall 2111.
  • the first area of the edge of the second wall 2112 is recessed to form a second recess 2113 , and the second recess 2113 is used to accommodate the electrode terminal 212 of the battery cell 21 adjacent to the second wall 2112 .
  • the partition beam 30 is disposed on the bottom wall 111, and the partition beam 30 is located on one side of the battery cell group 20 along the first direction X; the partition beam 30 extends along the second direction Y, and the second direction Y, the first direction X and the thickness direction Z of the bottom wall 111 are perpendicular to each other.
  • the partition beam 30 includes a first surface 31 away from the bottom wall 111, and the partition beam 30 is provided with a groove 32 that is recessed from the first surface 31 toward the bottom wall 111.
  • the groove bottom surface 321 of the groove 32 is provided with a second connection hole 322 and a first recess.
  • the fixing seat 40 includes a seat body 41, a connecting portion 42, an extension portion 46 extending from the seat body 41, and a nut 44;
  • the seat body 41 includes a second surface 411 facing the groove bottom surface 321, the seat body 41 and the connecting portion 42 are arranged along the second direction Y, the extension portion 46 extends from the seat body 41 along the thickness direction Z of the bottom wall 111, and the thickness direction of the extension portion 46 is parallel to the first direction X.
  • the connecting portion 42 is provided with a first connecting hole 421, the first connecting hole 421 corresponds to the second connecting hole 322, the first fastener 60 is inserted into the first connecting hole 421 and the second connecting hole 322, and fixes the fixing seat 40 to the groove bottom surface 321.
  • the nut 44 is embedded in the seat body 41.
  • the fixing seat 40 also includes a first positioning portion 43, a first limiting portion 45 and a second limiting portion 47.
  • the first positioning portion 43 is a protrusion protruding from the second surface 411
  • the first limiting portion 45 is a protrusion arranged on the extension portion 46
  • the second limiting portion 47 includes two clips 471, and the two clips 471 are arranged on both sides of the extension portion 46 along the second direction.
  • the output pole 50 is used to output the electric energy of the battery cell group 20.
  • the output pole 50 includes a first section 51, a second section 52 and a third section 53.
  • the first section 51 and the second section 52 are connected to form an L-shaped structure.
  • the first direction X the first section 51 is located between the battery cell group 20 and the partition beam 30.
  • the length direction of the first section 51 is parallel to the thickness direction Z of the bottom wall 111.
  • the width direction of the first section 51 is parallel to the second direction Y.
  • the second section 52 is connected to the end of the first section 51 away from the bottom wall 111.
  • the third section 53 extends from the edge of the first section 51 in the width direction.
  • the third section 53 is welded to the first side surface 2121 of the electrode terminal 212 of a battery cell 21 in the battery cell group 20 that is closest to the partition beam 30.
  • the second section 52 is provided with a third connection hole 521.
  • the second fastener is inserted into the third connection hole 521 and is threadedly connected to the nut 44 to fix the output pole 50 to the fixing seat 40.
  • the first limiting portion 45 is located at a side of the third section 53 away from the bottom wall 111, and the first limiting portion 45 abuts against the third section 53 along the thickness direction Z of the bottom wall 111 to limit the movement of the third section 53 along the thickness direction Z of the bottom wall 111.
  • the second limiting portion 47 is provided on the extending portion 46, and the two buckles 471 are respectively engaged with the two sides of the width direction of the first section 51, and the second limiting portion 47 is used to limit the movement of the first section 51 along the width direction of the first section 51.
  • the output pole 50 of the battery cell group 20 is fixed to the fixing seat 40 , and the fixing seat 40 is installed on the partition beam 30 , which can improve the space utilization rate in the box 10 , thereby making the battery 100 have a higher energy density.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例提供一种电池及用电设备，属于电池技术领域。该电池包括箱体、电池单体组、分隔梁、固定座及输出极；电池单体组设置于箱体内，电池单体组包括沿第一方向层叠设置且相互电连接的多个电池单体；分隔梁固定于箱体内，分隔梁位于电池单体组的沿第一方向的一侧；固定座安装于分隔梁；输出极用于输出电池单体组的电能，输出极固定于固定座。该电池具有较高的能量密度。

Description

电池及用电设备 技术领域
本申请涉及电池技术领域，具体而言，涉及一种电池及用电设备。
背景技术
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池技术的发展中，除了提高电池的安全性外，能量密度也是一个不可忽视的问题。因此，如何提高电池的能量密度，是电池技术一个亟需解决的技术问题。
发明内容
本申请的目的在于提供一种电池及用电设备，电池具有较高的能量密度。
本申请是通过如下技术方案实现的：
第一方面，本申请提供了一种电池，该电池包括箱体、电池单体组、分隔梁、固定座及输出极；电池单体组设置于箱体内，电池单体组包括沿第一方向层叠设置且相互电连接的多个电池单体；分隔梁固定于箱体内，分隔梁位于电池单体组的沿第一方向的一侧；固定座安装于分隔梁；输出极用于输出电池单体组的电能，输出极固定于固定座。
根据本申请实施例的电池，分隔梁为箱体内设置的、用于分隔箱体内部空间的部件，电池单体组的输出极固定于固定座，固定座安装于分隔梁，能够提高箱体内的空间利用率，进而使得电池具有较高的能量密度。
根据本申请的一些实施例，箱体包括底壁和侧壁，侧壁围设于底壁的周围，分隔梁设置于底壁，分隔梁沿第二方向延伸，第二方向、第一方向和底壁的厚度方向两两相交。
在上述方案中，侧壁和底壁限定出用于容纳电池单体组的空间，分隔梁设置于底壁，使得分隔梁与箱体连接稳定，以便于固定座固定于分隔梁；分隔梁沿第二方向延伸，分隔梁在第一方向上的尺寸可以较小，以减少空间占用。
根据本申请的一些实施例，分隔梁包括远离底壁的第一表面，分隔梁设置有从第一表面朝向底壁凹陷的凹槽，固定座至少部分设置于凹槽内。
在上述方案中，凹槽为固定座提供容纳的空间，固定座至少部分设置于凹槽内，能够减少固定座与分隔梁装配后在底壁的厚度方向上的空间占用，减少固定座对空间利用率的影响。
根据本申请的一些实施例，固定座不凸出于第一表面。
在上述方案中，固定座安装于分隔梁后，固定座在底壁的厚度方向上不会占用额外的空间，减少箱体内的空间占用，减少对电池的能量密度的影响。
根据本申请的一些实施例，固定座包括第一连接孔，凹槽的槽底面设置有与第一连接孔对应的第二连接孔，电池还包括第一紧固件，第一紧固件被配置为插设于第一连接孔和第二连接孔，以将固定座固定于槽底面。
在上述方案中，第一连接孔与第二连接孔对应，第一紧固件插设于第一连接孔和第二连接孔，并将固定座固定于槽底面，装配便捷，便于操作。
根据本申请的一些实施例，固定座包括座体和连接部，输出极固定于座体，连接部连接于座体，第一连接孔设置于连接部。
在上述方案中，输出极固定于座体，连接部连接分隔梁，便于实现输出极与固定座的装配以及固定座与分隔梁的装配，并且使得输出极与分隔梁装配稳定。
根据本申请的一些实施例，固定座还包括第一定位部，分隔梁包括与第一定位部对应的第二定位部，第一定位部与第二定位部配合。
在上述方案中，第一定位部与第二定位部配合、连接部的第一连接孔与分隔梁的第二连接孔配合，便于实现固定座与分隔梁的定位装配，并且还能够限制固定座相对于分隔梁转动。
根据本申请的一些实施例，座体包括面向槽底面的第二表面，第一定位部为凸出于第二表面的凸起，第二定位部为设置于槽底面的第一凹部。
在上述方案中，第一定位部为凸起，第二定位部为第一凹部，凸起与第一凹部配合，结构简单，装配方便，操作便捷。
根据本申请的一些实施例，固定座还包括螺母，螺母嵌设于座体，输出极设置有第三连接孔，电池还包括第二紧固件，第二紧固件穿设于第三连接孔且与螺母螺纹连接，以将输出极固定于固定座。
在上述方案中，螺母嵌设于座体，使得螺母与座体连接稳定，以便于第二紧固件穿设于第三连接孔且与螺母螺纹连接，实现输出极固定于固定座；第二紧固件将输出极固定于固定座，便于输出极与外部导电部件(如导电片)电连接。
根据本申请的一些实施例，座体和连接部沿第二方向排布。
在上述方案中，座体和连接部沿第二方向排布，可以利用分隔梁的结构空间，以减少固定座在第一方向上的空间占用，使得箱体内的空间利用率较高，进而使得电池具有较高的能量密度。
根据本申请的一些实施例，输出极包括第一段和第二段，第一段和第二段连接形成L形结构，第一段与电池单体组中最靠近分隔梁的一个电池单体电连接，第二段固定于固定座。
在上述方案中，第一段和第二段连接形成L形结构，以便于输出极与电池单体组和固定座的连接，装配方便。
根据本申请的一些实施例，沿第一方向，第一段位于电池单体组与分隔梁之间，第一段的长度方向与底壁的厚度方向平行，第二段连接于第一段的远离底壁的一端。
在上述方案中，第一段沿第一方向位于电池单体组与分隔梁之间，合理利用第一方向上的空间，便于实现输出极与电池单体组的电连接；第二段连接于第一段的远离底壁的一端，便于实现固定座与分隔梁的装配。
根据本申请的一些实施例，电池单体包括外壳和电极端子，外壳具有面向分隔梁的第一壁，电极端子安装于第一壁，电极端子具有第一侧面，第一侧面所在平面与第一壁相交，输出极连接于电池单体组中最靠近分隔梁的一个电池单体的电极端子的第一侧面。
在上述方案中，输出极连接于电极端子的第一侧面，一方面，便于输出极与电极端子的连接，另一方面，能够减少输出极与电池单体组装配后在第一方向上的空间占用，箱体内的空间利用率高，使得电池具有较高的能量密度。
根据本申请的一些实施例，输出极还包括第三段，第三段从第一段的宽度方向的边缘延伸出，第三段连接于第一侧面，第一段的宽度方向与第一方向相交。
在上述方案中，第三段从第一段的宽度方向的边缘延伸出，便于加工制造；第三段连接于第三表面，便于实现输出极与电池单体组的连接。
根据本申请的一些实施例，固定座包括第一限位部，第一限位部与第三段沿底壁的厚度方向抵接，以限制第三段沿底壁的厚度方向移动。
在上述方案中，通过第一限位部限制第三段沿底壁的厚度方向移动，以使得输出极与固定座连接稳定，降低输出极脱离固定座的风险。
根据本申请的一些实施例，第一限位部位于第三段的背离底壁的一侧。
在上述方案中，第一限位部位于第三段的背离底壁的一侧，以实现对输出极沿底壁的厚度方向朝背离底壁的方向移动的限制，与固定座安装于分隔梁相配合，约束输出极沿底壁的厚度方向移动，进一步使得输出极与固定座装配稳定；此种设置方式，输出极与固定座可以预先装配，以降低装配难度。
根据本申请的一些实施例，外壳包括沿第一方向相对设置的第一壁和第二壁、沿第二方向相对设置的第三壁和第四壁、以及沿底壁的厚度方向相对设置的第五壁和第六壁，第三壁的面积和第四壁的面积均小于第一壁的面积，第三壁的面积和第四壁的面积均小于第二壁的面积，第五壁的 面积和第六壁的面积均小于第一壁的面积，第五壁的面积和第六壁的面积均小于第二壁的面积。
在上述方案中，第一壁和第二壁为外壳的面积相对较大的壁，多个电池单体沿第一方向排布，使得电池单体组结构紧凑，电池具有较大的能量密度。
根据本申请的一些实施例，外壳还具有与第一壁相对设置的第二壁，第二壁的边缘的第一区域内陷形成第二凹部，第二凹部用于容纳与第二壁相邻的电池单体的电极端子。
在上述方案中，在多个电池单体层叠时，第二凹部的设置，能够容纳与第二壁相邻的电池单体的电极端子，合理利用装配空间，使得电池具有较高的能量密度。
根据本申请的一些实施例，固定座包括座体和从座体朝向底壁延伸的延伸部，沿第一方向，延伸部位于第一段与分隔梁之间。
在上述方案中，延伸部位于第一段和分隔梁之间，以便于将第一段与分隔梁隔离，降低输出极与分隔梁接触的风险，例如，固定座为绝缘件，能够提高输出极与分隔梁之间的绝缘效果。
根据本申请的一些实施例，固定座包括第二限位部，第二限位部用于限制第一段沿第一段的宽度方向移动。
在上述方案中，第二限位部限制第一段沿第一段的宽度方向移动，使得输出极与固定座装配稳定。
根据本申请的一些实施例，第二限位部包括至少两个卡扣，至少两个卡扣分别与第一段的沿宽度方向的两侧卡接。
在上述方案中，卡扣的设置，结构简单，便于实现第一段与第二限位部的装配。
根据本申请的一些实施例，电池单体组与分隔梁之间设置有绝缘层。
在上述方案中，绝缘层的设置，使得电池单体组与分隔梁之间具有较好的绝缘效果，降低电池单体组与分隔梁接触短路的风险。
第二方面，本申请还提供了一种用电设备，包括上述任一实施例提供的电池。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1为本申请一些实施例提供的车辆的结构示意图；
图2为本申请一些实施例提供的电池的爆炸图；
图3为本申请一些实施例提供的电池的部分结构示意图；
图4为图3的A处局部放大图；
图5为本申请一些实施例提供的电池的部分结构的示意图；
图6为图5的B处局部放大图；
图7为本申请一些实施例提供的输出极与固定座的装配示意图；
图8为本申请一些实施例提供的输出极与固定座的结构示意图；
图9为本申请一些实施例提供的输出极与电池单体组的装配示意图；
图10为本申请一些实施例提供的电池单体与输出极的结构示意图；
图11为本申请一些实施例提供的第一侧面与第一壁的装配示意图；
图12为图3的C处局部放大图。
在附图中，附图并未按照实际的比例绘制。
标记说明：100-电池；10-箱体；11-第一子箱体；111-底壁；112-侧壁；12-第二子箱体； 20-电池单体组；21-电池单体；211-外壳；2111-第一壁；2112-第二壁；2113-第二凹部；212-电极端子；2121-第一侧面；30-分隔梁；31-第一表面；32-凹槽；321-槽底面；322-第二连接孔；323-第二定位部；40-固定座；41-座体；411-第二表面；42-连接部；421-第一连接孔；43-第一定位部；44-螺母；45-第一限位部；46-延伸部；47-第二限位部；471-卡扣；50-输出极；51-第一段；52-第二段；521-第三连接孔；53-第三段；60-第一紧固件；200-控制器；300-马达；1000-车辆。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
除非另有定义，本文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；本文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，可以是固定连接，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)。
电池技术的发展要同时考虑多方面的设计因素，例如，安全性、放电容量、充放电倍率等性能参数，另外，还需要考虑电池的能量密度。
电池包括箱体、分隔梁、电池单体组和设置于电池单体组的两侧的端板，分隔梁和电池单体组均设置于箱体内，分隔梁将箱体的内部分隔出多个空间，电池单体组位于分隔梁分隔出的多个空间中的至少一个。
在相关技术中，电池单体组设置于箱体内时，电池单体组的两侧需要设置两个端板，两个端板约束电池单体组的多个电池单体，电池单体组的电能通过输出极输出，为了便于输出极与外部导电部件的连接，输出极固定于固定座，然而固定座通常安装于端板；为了保护多个电池单体以及安装固定座，端板的厚度通常较厚，使得箱体内的空间利用率较低，电池的能量密度较低。
鉴于此，为了解决箱体内的空间利用率较低而导致电池的能量密度较低的问题，发明人经过深入研究，设计了一种电池，将固定座安装于分隔梁，可以将端板的厚度减小，甚至取消与电池单体组相邻设置的端板，以提高箱体内的空间利用率，从而使得电池具有较高的能量密度。
由于分隔梁是必不可少的部件，在上述的电池中，通过将固定座安装于分隔梁，能够减小端板的厚度甚至减少端板的使用，进而提高箱体内的空间利用率，使得电池具有较高的能量密度。
本申请实施例公开的电池可以但不限用于车辆、船舶或飞行器等用电设备中。可以使用具备本申请公开的电池组成该用电设备的电源系统。
本申请实施例提供一种使用电池作为电源的用电设备，用电设备可以为但不限于手机、平板电脑、笔记本电脑、电动玩具、电动工具、电动自行车、电动摩托车、电动汽车、轮船、航天器等等。其中，电动玩具可以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，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电设备为车辆1000为例进行说 明。
请参照图1，图1为本申请一些实施例提供的车辆的结构示意图。车辆1000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1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源，用于车辆1000的电路系统，例如用于车辆1000的启动、导航和运行时的工作用电需求。
车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参见图2和图3，图2为本申请一些实施例提供的电池的爆炸图，图2仅示出了箱体和电池单体，其他部件省略；图3为本申请一些实施例提供的电池的部分结构示意图，为了便于观察箱体内的部件，图3中未示出第二子箱体。根据本申请的一些实施例，本申请提供了一种电池100，电池100包括箱体10、电池单体组20、分隔梁30、固定座40及输出极50。电池单体组20设置于箱体10内，电池单体组20包括沿第一方向X层叠设置且相互电连接的多个电池单体21。分隔梁30固定于箱体10内，分隔梁30位于电池单体组20的沿第一方向X的一侧。固定座40安装于分隔梁30。输出极50用于输出电池单体组20的电能，输出极50固定于固定座40。
图中，字母X所指示的方向为第一方向。第一方向X可以为箱体10的长度方向，或者，第一方向X也可以为箱体10的宽度方向。
箱体10用于为电池单体21提供容纳空间，箱体10可以采用多种结构。在一些实施例中，箱体10可以包括第一子箱体11和第二子箱体12，第一子箱体11与第二子箱体12相互盖合，第一子箱体11和第二子箱体12共同限定出用于容纳电池单体21的容纳空间。第一子箱体11可以为一端开口的空心结构，第二子箱体12可以为板状结构，第二子箱体12盖合于第一子箱体11的开口侧，以使第一子箱体11与第二子箱体12共同限定出容纳空间；第一子箱体11和第二子箱体12也可以是均为一侧开口的空心结构，第一子箱体11的开口侧盖合于第二子箱体12的开口侧。
箱体10的材质可以为铝、铝合金、不锈钢等，具有较高的强度。
在电池100中，多个电池单体21之间可串联或并联或混联，混联是指多个电池单体21中既有串联又有并联。多个电池单体21之间可直接串联或并联或混联在一起，再将多个电池单体21构成的整体容纳于箱体10内。电池100还可以包括其他结构，例如，该电池100还可以包括汇流部件，用于实现多个电池单体21之间的电连接。
其中，电池单体21可以为二次电池或一次电池；电池单体21还可以是锂硫电池、钠离子电池或镁离子电池，但不局限于此。
分隔梁30为设置于箱体10内的部件，分隔梁30用于将箱体10内部分隔出多个空间，多个空间能够分别容纳电池单体组20和其他部件(如线束等)。同时，分隔梁30设置于箱体10内，还能够提高箱体10的整体强度。
分隔梁30在箱体10内的设置位置可以为多种形式，根据不同需求可以设置不同位置，例如，分隔梁30可以位于电池单体组20的沿第一方向X的一侧。在一些实施例中，当分隔梁30的数量很多时，电池单体组20可以位于两个分隔梁30之间。
分隔梁30的材质可以与箱体10的材质相同，也可以与箱体10的材质不同。分隔梁30的材质可以为铝、铝合金、不锈钢等，具有较高的强度。
固定座40为用于固定输出极50的部件；固定座40可以为绝缘部件，以降低输出极50与其他导电件接触短路的风险。
固定座40与分隔梁30的装配方式可以为多种形式，例如，固定座40可以与分隔梁30卡接，或者，固定座40可以与分隔梁30通过连接部件可拆卸地连接。
输出极50为导电部件，用于将电池单体组20的电能导出。输出极50的材质可以为铜、铝等。
根据本申请实施例的电池100，电池单体组20的多个电池单体21沿第一方向X层叠设 置，分隔梁30设置于电池单体组20的沿第一方向X的一侧，电池单体组20的输出极50固定于固定座40，并且固定座40安装于分隔梁30，可以减小与电池单体组20的相邻的端板的厚度，甚至取消端板的使用，因而能够提高箱体10内的空间利用率，进而使得电池100具有较高的能量密度。
请参照图3，根据本申请的一些实施例，箱体10包括底壁111和侧壁112，侧壁112围设于底壁111的周围，分隔梁30设置于底壁111，分隔梁30沿第二方向Y延伸，第二方向Y、第一方向X和底壁111的厚度方向Z两两相交。
图中，字母Y所指示的方向为第二方向，第二方向Y可以为箱体10的宽度方向，或者，第二方向Y也可以为箱体10的长度方向。字母Z所指示的方向为底壁111的厚度方向Z，底壁111的厚度方向Z可以为箱体10的高度方向。
第二方向Y、第一方向X和底壁111的厚度方向Z两两相交的形式可以有多种，例如，第二方向Y可以与第一方向X垂直，第二方向Y和第一方向X可以与底壁111的厚度方向Z不垂直；或者，第二方向Y可以与底壁111的厚度方向Z垂直，第二方向Y和底壁111的厚度方向Z可以与第一方向X不垂直；又或者，第一方向X可以与底壁111的厚度方向Z垂直，第一方向X和底壁111的厚度方向Z可以与第二方向Y不垂直；又或者，第二方向Y、第一方向X和底壁111的厚度方向Z两两垂直。
可选地，第二方向Y、第一方向X和底壁111的厚度方向Z两两垂直。
侧壁112和底壁111围成用于容纳电池单体组20的空间，并且分隔梁30设置于该空间内。侧壁112可以设置于底壁111的边缘，以使得侧壁112与底壁111围成的空间具有较大的容量。
侧壁112与底壁111的连接方式为多种形式，例如，侧壁112与底壁111可以一体成型，如侧壁112与底壁111由铝材挤压成型；或者，侧壁112与底壁111可以分体设置且两者焊接连接。
分隔梁30设置于底壁111，分隔梁30可以与底壁111焊接，以使得分隔梁30与底壁111连接稳定。当分隔梁30与底壁111焊接时，分隔梁30的材质可以与底壁111的材质相同，以便于分隔梁30与底壁111的焊接。
分隔梁30沿第二方向Y延伸，分隔梁30在第二方向Y上的尺寸比分隔梁30在其他方向上的尺寸较大，分隔梁30的长度方向可以与第二方向Y平行；分隔梁30的厚度方向可以与第一方向X平行。
分隔梁30的沿第二方向Y相对的两端可以分别连接于侧壁112，使得分隔梁30与箱体10的连接面积较大，使得分隔梁30与箱体10连接稳定。分隔梁30的两端可以与侧壁112焊接，使得分隔梁30与侧壁112连接牢固，提高箱体10的整体强度。
在上述方案中，侧壁112和底壁111限定出用于容纳电池单体组20的空间，分隔梁30设置于底壁111，使得分隔梁30与箱体10连接稳定，以便于固定座40固定于分隔梁30；分隔梁30沿第二方向Y延伸，分隔梁30在第一方向X上的尺寸可以较小，以减少空间占用。
请参见图3，并进一步参见图4，图4为图3的A处局部放大图。根据本申请的一些实施例，分隔梁30包括远离底壁111的第一表面31，分隔梁30设置有从第一表面31朝向底壁111凹陷的凹槽32，固定座40至少部分设置于凹槽32内。
第一表面31为分隔梁30的远离底壁111的表面。分隔梁30还包括面向底壁111的第三表面(图中未示出)，第三表面与第一表面31沿底壁111的厚度方向Z相对设置，第三表面可以与底壁111接触，以使得底壁111对分隔梁30具有较好的支撑效果。
凹槽32为从第一表面31朝向底壁111凹陷形成的槽，凹槽32的槽深方向由第一表面31指向底壁111。凹槽32的轮廓与固定座40的轮廓相似，以便于固定座40的至少部分能够容纳于凹槽32内。
固定座40与凹槽32的装配方式可以根据实际情况选取，例如，固定座40的一部分可以设置于凹槽32内，或者，固定座40的整体可以设置于凹槽32内。
在上述方案中，凹槽32为固定座40提供容纳的空间，固定座40至少部分设置于凹槽 32内，能够减少固定座40与分隔梁30装配后在底壁111的厚度方向Z上的空间占用，减少固定座40对空间利用率的影响。
请参见图4，根据本申请的一些实施例，固定座40不凸出于第一表面31。
固定座40不凸出于第一表面31是指，在底壁111的厚度方向Z上，固定座40不凸出于第一表面31，具体为，当固定座40与分隔梁30装配后，固定座40的整体位于凹槽32内，固定座40的远离底壁111的表面低于第一表面31，或者，固定座40的远离底壁111的表面与第一表面31共面。
在上述方案中，固定座40安装于分隔梁30后，固定座40在底壁111的厚度方向Z上不会占用额外的空间，减少箱体10内的空间占用，减少对电池100的能量密度的影响。
请参见图4，并进一步参见图5和图6，图5为本申请一些实施例提供的电池的部分结构的示意图，图6为图5的B处局部放大图。根据本申请的一些实施例，固定座40包括第一连接孔421，凹槽32的槽底面321设置有与第一连接孔421对应的第二连接孔322，电池100还包括第一紧固件60，第一紧固件60被配置为插设于第一连接孔421和第二连接孔322，以将固定座40固定于槽底面321。
第一连接孔421为设置于固定座40的孔；第一连接孔421可以为通孔，第一连接孔421用于供第一紧固件60插设。
第二连接孔322为设置于凹槽32的槽底面321的孔，第二连接孔322与第一连接孔421对应设置，以便于第一紧固件60能够插设于第一连接孔421和第二连接孔322。
第二连接孔322可以为螺纹孔，第一紧固件60可以为带有螺纹的部件(如螺栓等)，当第一紧固件60插设于第一连接孔421和第二连接孔322时，第一紧固件60可以与第二连接孔322螺纹配合，以将固定座40固定于凹槽32的槽底面321。
为了便于实现固定座40与分隔梁30的装配，固定座40可以与凹槽32的槽底面321贴合。
在上述方案中，第一连接孔421与第二连接孔322对应，第一紧固件60插设于第一连接孔421和第二连接孔322，并将固定座40固定于槽底面321，装配便捷，便于操作。
请参见图7，图7为本申请一些实施例提供的输出极与固定座的装配示意图，图8为本申请一些实施例提供的输出极与固定座的结构示意图，图8为图7的爆炸图。根据本申请的一些实施例，固定座40包括座体41和连接部42，输出极50固定于座体41，连接部42连接于座体41，第一连接孔421设置于连接部42。
座体41和连接部42为固定座40的两个组成部分，座体41用于固定输出极50，连接部42用于连接于分隔梁30。
连接部42与座体41的连接方式可以为多种形式，例如，连接部42可以一体成型于座体41；或者，连接部42可以与座体41分体设置且两者固定于一体，例如，连接部42与座体41卡接配合，连接部42与座体41铆接配合。
第一连接孔421为设置于连接部42的通孔，以便于连接部42与凹槽32的槽底面321连接配合。连接部42可以具有面向凹槽32的槽底面321的表面，以便于连接部42能够与凹槽32的槽底面321贴合。
在上述方案中，输出极50固定于座体41，连接部42连接分隔梁30，便于实现输出极50与固定座40的装配以及固定座40与分隔梁30的装配，并且使得输出极50与分隔梁30装配稳定。
请参见图6，根据本申请的一些实施例，固定座40还包括第一定位部43，分隔梁30包括与第一定位部43对应的第二定位部323，第一定位部43与第二定位部323配合。
第一定位部43为固定座40的用于与分隔梁30定位配合的部分。第二定位部323为分隔梁30的用于与固定座40的第一定位部43配合的部分。
第一定位部43与第二定位部323的配合方式可以为多种，例如，第一定位部43与第二定位部323可以为凸起和凹部的插接配合方式，即第一定位部43与第二定位部323中的一者为凸起，另一者为凹部；或者，第一定位部43与第二定位部323可以为卡扣与卡槽的卡接配合方 式，即第一定位部43与第二定位部323中的一者为卡扣，另一者为卡槽。
在上述方案中，第一定位部43与第二定位部323配合、连接部42的第一连接孔421与分隔梁30的第二连接孔322配合，便于实现固定座40与分隔梁30的定位装配，并且还能够限制固定座40相对于分隔梁30转动。
请参见图6，根据本申请的一些实施例，座体41包括面向槽底面321的第二表面411，第一定位部43为凸出于第二表面411的凸起，第二定位部323为设置于槽底面321的第一凹部。
第二表面411为座体41的面向槽底面321的表面，第二表面411可以与凹槽32的槽底面321贴合，以便于座体41与凹槽32的定位配合。
第一定位部43为凸出于第二表面411的凸起；第二定位部323为设置于凹槽32的槽底面321的第一凹部，第一凹部由槽底面321向底壁111凹陷形成。第一凹部的轮廓与凸起的轮廓匹配，以便于凸起能够插设于第一凹部内。在固定座40与分隔梁30定位配合时，凸起插设于第一凹部内，实现固定座40与分隔梁30的定位，然后，再使第一连接孔421与第二连接孔322对应，第一紧固件60插设于第一连接孔421和第二连接孔322，完成固定座40与分隔梁30的装配。
在上述方案中，第一定位部43为凸起，第二定位部323为第一凹部，凸起与第一凹部配合，结构简单，装配方便，操作便捷。
请参见图7和图8，根据本申请的一些实施例，固定座40还包括螺母44，螺母44嵌设于座体41，输出极50设置有第三连接孔521，电池100还包括第二紧固件(图中未示出)，第二紧固件穿设于第三连接孔521且与螺母44螺纹连接，以将输出极50固定于固定座40。
螺母44嵌设于座体41，使得螺母44与座体41连接牢固。螺母44与座体41的配合过程可以为：通过模具将螺母44与熔融的塑料(或其他绝缘材质)配合，待塑料(或其他绝缘材质)凝固后形成座体41与螺母44的配合结构。
需要指出的是，固定座40的结构组成中，除了螺母44可以为导电件外，固定座40的其他组成部分均为绝缘结构，仅螺母44能够与输出极50电连接，其他组成部分均与输出极50和分隔梁30绝缘。
在一些实施例中，螺母44与座体41可以过盈配合，以使得螺母44与座体41连接牢固。在另一些实施例中，螺母44也可以与座体41通过胶粘接于一体。
第三连接孔521可以为设置于输出极50的通孔，在输出极50与固定座40装配时，第三连接孔521与螺母44的螺纹孔对应，以供第二紧固件插设。
第二紧固件为带有螺纹的部件，例如，第二紧固件可以为螺栓，或者，第二紧固件可以为带有螺纹的杆件。
为了便于实现输出极50与外部导电部件的电连接，第二紧固件可以为导电部件。
在上述方案中，螺母44嵌设于座体41，使得螺母44与座体41连接稳定，以便于第二紧固件穿设于第三连接孔521且与螺母44螺纹连接，实现输出极50固定于固定座40；第二紧固件将输出极50固定于固定座40，便于输出极50与外部导电部件(如导电片)电连接。
请参见图6至图8，根据本申请的一些实施例，座体41和连接部42沿第二方向Y排布。
分隔梁30沿第二方向Y延伸，座体41和连接部42沿第二方向Y排布，可以利用分隔梁30的结构空间，以减少固定座40在第一方向X上的空间占用，使得箱体10内的空间利用率较高，进而使得电池100具有较高的能量密度。
请参见图8，根据本申请的一些实施例，输出极50包括第一段51和第二段52，第一段51和第二段52连接形成L形结构，第一段51与电池单体组20(请参见图3)中最靠近分隔梁30的一个电池单体21(请参见图4)电连接，第二段52固定于固定座40。
第一段51和第二段52为输出极50的两个组成部分，第一段51与第二段52的连接方式可以为多种形式，例如，第一段51与第二段52可以一体成型，第二段52相对于第一段51折弯形成L形结构，或者，第一段51与第二段52也可以焊接形成L形结构。
第一段51与电池单体组20中最靠近分隔梁30的一个电池单体21电连接，以便于输 出极50与电池单体组20的电连接。
第二段52固定于固定座40，以便于与外部导电部件连接。
在上述方案中，第一段51和第二段52连接形成L形结构，以便于输出极50与电池单体组20和固定座40的连接，装配方便。
请参见图9，图9为本申请一些实施例提供的输出极与电池单体组的装配示意图，图9中未示出分隔梁30。根据本申请的一些实施例，沿第一方向X，第一段51位于电池单体组20与分隔梁30(请参见图3)之间，第一段51的长度方向与底壁111的厚度方向Z平行，第二段52连接于第一段51的远离底壁111的一端。
第一段51沿第一方向X位于电池单体组20与分隔梁30之间，合理利用第一方向X上的空间，便于实现输出极50与电池单体组20的电连接。
第一段51可以沿底壁111的厚度方向Z延伸，第二段52连接于第一段51的远离底壁111的一端，便于实现固定座40与分隔梁30的装配。
请参见图10，图10为本申请一些实施例提供的电池单体与输出极的结构示意图。根据本申请的一些实施例，电池单体21包括外壳211和电极端子212，外壳211具有面向分隔梁30(请参见图3)的第一壁2111，电极端子212安装于第一壁2111，电极端子212具有第一侧面2121，第一侧面2121所在平面与第一壁2111相交，输出极50连接于电池单体组20(请参见图3)中最靠近分隔梁30的一个电池单体21的电极端子212的第一侧面2121。
外壳211包括壳体和盖体，壳体具有开口，盖体封闭开口，以将电池单体21的内部环境与外部环境隔绝。
壳体是用于配合盖体以形成电池单体21的内部环境的组件，其中，形成的内部环境可以用于容纳电极组件、电解液以及其他部件。壳体和盖体可以是独立的部件。壳体可以是多种形状和多种尺寸的。具体地，壳体的形状可以根据电极组件的具体形状和尺寸大小来确定。壳体的材质可以是多种，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。本申请实施例以壳体为长方体形为例介绍。
盖体是指盖合于壳体的开口处以将电池单体21的内部环境隔绝于外部环境的部件。不限地，盖体的形状可以与壳体的形状相适应以配合壳体。可选地，盖体可以由具有一定硬度和强度的材质(如铝合金)制成，这样，盖体在受挤压碰撞时就不易发生形变，使电池单体21能够具备更高的结构强度，安全性能也可以有所提高。盖体上可以设置有如电极端子212等的功能性部件。电极端子212可以用于与电极组件电连接，以用于输出或输入电池单体21的电能。盖体的材质也可以是多种的，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。在一些实施例中，在盖体的内侧还可以设置有绝缘结构，绝缘结构可以用于隔离壳体内的电连接部42件与盖体，以降低短路的风险。示例性的，绝缘结构可以是塑料、橡胶等。
电池单体21还包括电极组件，电极组件是电池单体21中发生电化学反应的部件。壳体内可以包含一个或更多个电极组件。电极组件主要由正极极片和负极极片卷绕或层叠放置形成，并且通常在正极极片与负极极片之间设有隔离膜，隔离膜用于分隔正极极片和负极极片，以避免正极极片和负极极片内接短路。正极极片和负极极片具有活性物质的部分构成电芯组件的主体部，正极极片和负极极片不具有活性物质的部分各自构成极耳。正极极耳和负极极耳可以共同位于主体部的一端或是分别位于主体部的两端。在电池100的充放电过程中，正极活性物质和负极活性物质与电解液发生反应，极耳连接电极端子212以形成电流回路。
第一壁2111为外壳211的面向分隔梁30的壁，第一壁2111可以垂直于第一方向X。第一壁2111可以为盖体，或者，第一壁2111也可以为壳体的一个壁。可选地，第一壁2111为盖体，以便于电极端子212与第一壁2111的装配。
电极端子212安装于第一壁2111，电极端子212具有第一侧面2121和第一端面，第一端面为电极端子212的背离第一壁2111的表面，第一侧面2121所在平面与第一壁2111和第一端面相交。
请参见图11，图11为本申请一些实施例提供的第一侧面与第一壁的装配示意图。第一侧面2121所在的平面与第一壁2111相交，可以为第一侧面2121所在的平面与第一壁2111的厚度方向平行，或者，可以为第一侧面2121所在的平面与第一壁2111的厚度方向倾斜设置。例如， 第一侧面2121所在的平面与第一壁2111之间的角度θ为60°～120°；较优地，第一侧面2121所在的平面与第一壁2111之间的角度θ为85°～95°；优选地，第一侧面2121所在的平面可以垂直于第一壁2111，也即，第一侧面2121所在的平面可以与第一壁2111的厚度方向平行，以便于第一侧面2121与输出极50连接。
第一侧面2121可以与输出极50焊接，以使得输出极50与电极端子212连接牢固。
在上述方案中，输出极50连接于电极端子212的第一侧面2121，一方面，便于输出极50与电极端子212的连接，另一方面，能够减少输出极50与电池单体组20装配后在第一方向X上的空间占用，箱体10内的空间利用率高，使得电池100具有较高的能量密度。
请参见图8，根据本申请的一些实施例，输出极50还包括第三段53，第三段53从第一段51的宽度方向的边缘延伸出，第三段53连接于第一侧面2121，第一段51的宽度方向与第一方向X相交。
第一段51的宽度方向可以与第二方向Y平行。
第一段51的宽度方向与第一方向X之间的角度可以根据实际情形选取，可选地，第一段51的宽度方向与第一方向X垂直。
第三段53为输出极50的组成部分，第三段53从第一段51的宽度方向的边缘延伸出，第三段53可以相对于第一段51折弯形成。第三段53、第一段51和第二段52可以为一体成型，例如，输出极50由金属件冲压形成。
第三段53的延伸方向可以与第一侧面2121平行，以便于第三段53与第一侧面2121连接。
第一段51的宽度方向与第一方向X垂直，第一段51的长度方向可以与底壁111的厚度方向Z平行，第一段51的厚度方向可以与第一方向X平行，在第一方向X上，第一段51的尺寸可以较小，以减少输出极50的空间占用。
在上述方案中，第三段53从第一段51的宽度方向的边缘延伸出，便于加工制造；第三段53连接于第三表面，便于实现输出极50与电池单体组20的连接。
请参见图7和图8，根据本申请的一些实施例，固定座40包括第一限位部45，第一限位部45与第三段53沿底壁111的厚度方向Z抵接，以限制第三段53沿底壁111的厚度方向Z移动。
第一限位部45为固定座40的用于限制第三段53沿底壁111的厚度方向Z移动的部分。例如，第一限位部45具有垂直于底壁111的厚度方向Z的平面，该平面能够与第三段53接触，从而限制第三段53沿底壁111的厚度方向Z移动。可选地，第一限位部45设置于下文中描述的延伸部46；可选地，第一限位部45与下文中描述的延伸部46一体成型。
第一限位部45的结构形式可以为多种，例如，第一限位部45可以为凸部，凸部在第三段53的沿底壁111厚度方向的一侧，凸部与第三段53沿底壁111的厚度方向Z抵接；或者，第一限位部45还可以环形结构，第三段53设置于环形结构内，环形结构的内壁与第三段53沿底壁111的厚度方向Z抵接。
当第一限位部45为凸部时，根据第一限位部45的设置位置不同，第一限位部45对第三段53的限制方式不同，例如，第一限位部45可以限制第三段53沿底壁111的厚度方向Z朝向底壁111移动，或者，第一限位部45可以限制第三沿底壁111的厚度方向Z朝背离底壁111的方向移动。
在上述方案中，通过第一限位部45限制第三段53沿底壁111的厚度方向Z移动，以使得输出极50与固定座40连接稳定，降低输出极50脱离固定座40的风险。
请参见图7，根据本申请的一些实施例，第一限位部45位于第三段53的背离底壁111(请参见图3)的一侧。
第一限位部45位于第三段53的背离底壁111的一侧，第一限位部45与第三段53沿底壁111的厚度方向Z抵接，从而使得第一限位部45限制第三段53朝背离底壁111的方向移动。
在上述方案中，第一限位部45位于第三段53的背离底壁111的一侧，以实现对输出极50沿底壁111的厚度方向Z朝背离底壁111的方向移动的限制，与固定座40安装于分隔梁30相 配合，约束输出极50沿底壁111的厚度方向Z移动，进一步使得输出极50与固定座40装配稳定；此种设置方式，输出极50与固定座40可以预先装配，以降低装配难度。
根据本申请的一些实施例，外壳211包括沿第一方向X相对设置的第一壁2111和第二壁2112、沿第二方向Y相对设置的第三壁(图中未示出)和第四壁(图中未示出)、以及沿底壁111的厚度方向Z相对设置的第五壁(图中未示出)和第六壁(图中未示出)，第三壁的面积和第四壁的面积均小于第一壁2111的面积，第三壁的面积和第四壁的面积均小于第二壁2112的面积，第五壁的面积和第六壁的面积均小于第一壁2111的面积，第五壁的面积和第六壁的面积均小于第二壁2112的面积。
第一壁2111、第二壁2112、第三壁、第四壁、第五壁和第六壁为构成外壳211的壁，这些壁可以围成用于容纳电极组件的空间。
第一壁2111和第二壁2112为外壳211的面积相对较大的壁，第一壁2111和第二壁2112沿第一方向X相对设置，多个电池单体21沿第一方向X排布，使得电池单体组20结构紧凑，电池100具有较大的能量密度。
请参见图10，并进一步参见图12，图12为图3的C处局部放大图。根据本申请的一些实施例，外壳211还具有与第一壁2111相对设置的第二壁2112，第二壁2112的边缘的第一区域内陷形成第二凹部2113，第二凹部2113用于容纳与第二壁2112相邻的电池单体21的电极端子212。
第二壁2112与第一壁2111沿第一方向X相对设置。第一区域为第二壁2112的边缘的区域，沿第一方向X，第一区域与第一壁2111的安装电极端子212的区域相对应。第一区域沿第一方向X朝向第一壁2111凹陷形成第二凹部2113。
在一些实施例中，第二凹部2113的凹陷深度大于电极端子212凸出第一壁2111的高度。可以理解的，与第二壁2112相邻的电池单体21的电极端子212也可以只有部分容纳于第二凹部2113内。
第二壁2112的表面可以设置有绝缘结构，以便于在多个电池单体21层叠设置时，第二壁2112与相邻的电池单体21的电极端子212绝缘隔离。绝缘结构也可以设置在电极端子212远离第一壁2111的表面，以便于在多个电池单体21层叠设置时，电极端子212可以与第一壁2111相邻的电池单体21的第二壁2112绝缘隔离。
在上述方案中，在多个电池单体21层叠时，第二凹部2113的设置，能够容纳与第二壁2112相邻的电池单体21的电极端子212，合理利用装配空间，使得电池100具有较高的能量密度。
请参见图7和图8，根据本申请的一些实施例，固定座40包括座体41和从座体41朝向底壁111延伸的延伸部46，沿第一方向X，延伸部46位于第一段51与分隔梁30(请参见图3)之间。
座体41为固定座40的用于固定第二段52的部分。第二段52可以与座体41贴合，以使得第二段52与座体41具有较大的连接面积。
延伸部46为固定座40的从座体41延伸出的部分，延伸部46与座体41可以一体成型，以便于加工制造。
沿第一方向X，第一段51、延伸部46和分隔梁30依次分布，使得延伸部46位于第一段51和分隔梁30之间，以便于将第一段51与分隔梁30隔离，降低输出极50与分隔梁30接触的风险。例如，固定座40可以为绝缘件，能够提高输出极50与分隔梁30之间的绝缘效果。
请参见图7和图8，根据本申请的一些实施例，固定座40包括第二限位部47，第二限位部47用于限制第一段51沿第一段51的宽度方向移动。
第二限位部47为固定座40的用于限制第一段51沿第一段51的宽度方向移动的部分。可选地，第二限位部47设置于延伸部46；可选地，第二限位部47与延伸部46一体成型。
当输出极50与固定座40装配后，第一段51与第二限位部47配合，第二限位部47限制第一段51沿第一段51的宽度方向移动，使得输出极50与固定座40装配稳定。
根据设置位置的不同，第二限位部47可以限制第一段51沿第一段51的宽度方向的一 侧或两侧移动。例如，第二限位部47为设置于第一段51的宽度方向一侧的凸部时，第二段52限制第一段51沿第一段51的宽度方向的一侧移动；或者，第二限位部47设置于第一段51的宽度方向的两侧时，第二限位部47限制第一段51沿第一段51的宽度方向的两侧移动。
请参见图7和图8，根据本申请的一些实施例，第二限位部47包括至少两个卡扣471，至少两个卡扣471分别与第一段51的沿宽度方向的两侧卡接。
至少两个卡扣471沿第一段51的宽度方向相对设置，形成用于容纳第一段51的空间，当第一段51设置于该空间内时，至少两个卡扣471分别从第一段51的宽度方向的两侧对第一段51进行限位。
卡扣471的数量可以为多个，多个卡扣471分布于第一段51的沿宽度方向的两侧，多个卡扣471可以对称分布，也可以不对称分布，例如，可以在第一段51的宽度方向的一侧分布一个卡扣471，在第一段51的宽度方向的另一侧分布两个卡扣471；或者，如图7和图8所示，可以在第一段51的宽度方向的两侧分别分布一个卡扣471。
在固定座40包括座体41和从座体41延伸出的延伸部46的实施例中，两个卡扣471可以设置于延伸部46的沿第一段51的宽度方向的两侧的边缘，以便于延伸部46与第一段51具有较大的连接面积。
当第一段51与两个卡扣471卡接时，两个卡扣471还可以与延伸部46配合，以限制第一段51沿第一方向X移动。
在上述方案中，卡扣471的设置，结构简单，便于实现第一段51与第二限位部47的装配。
根据本申请的一些实施例，两个卡扣471能够弹性变形，以便于两个卡扣471与第一段51卡接配合。
在第一段51与两个卡扣471配合时，第一段51可以沿第一方向X挤压两个卡扣471，两个卡扣471变形，以使得两个卡扣471沿第一段51的宽度方向的之间的距离增大，第一段51进入两个卡扣471之间形成的空间，待第一段51进入该空间后，两个卡扣471恢复原形，两个卡扣471分别与第一段51的宽度方向的两侧卡接。
根据本申请的一些实施例，电池单体组20与分隔梁30之间设置有绝缘层(图中未示出)。
电池单体组20中最靠近分隔梁30的一个电池单体21的面向分隔梁30的表面可以设置有绝缘层，或者，分隔梁30的面向电池单体组20的表面可以设置绝缘层。
在上述方案中，绝缘层的设置，使得电池单体组20与分隔梁30之间具有较好的绝缘效果，降低电池单体组20与分隔梁30接触短路的风险。
根据本申请的一些实施例，本申请还提供了一种用电设备，用电设备包括上述任一实施例提供的电池100，电池100用于提供电能。
用电设备可以为前述任一应用电池100的装置或系统。
根据本申请的一些实施例，请参见图3至图12，本申请提供了一种电池100，该电池100包括箱体10、电池单体组20、分隔梁30、固定座40、输出极50、第一紧固件60和第二紧固件。
箱体10呈长方体形，箱体10包括第一子箱体11和第二子箱体12，第一子箱体11包括底壁111和侧壁112，侧壁112围设于底壁111的周围，第二子箱体12设置于侧壁112的背离底壁111的一侧，第一子箱体11和第二子箱体12扣合形成容纳空间。电池单体组20、分隔梁30、固定座40和输出极50均设置于容纳空间内。
电池单体组20包括沿第一方向X层叠设置且相互电连接的多个电池单体21。电池单体21包括外壳211和电极端子212，外壳211包括沿第一方向X相对设置的第一壁2111和第二壁2112、沿第二方向Y相对设置的第三壁和第四壁、以及沿底壁111的厚度方向Z相对设置的第五壁和第六壁，第三壁的面积和第四壁的面积均小于第一壁2111的面积，第三壁的面积和第四壁的面积均小于第二壁2112的面积，第五壁的面积和第六壁的面积均小于第一壁2111的面积，第五壁的面积和第六壁的面积均小于第二壁2112的面积。电极端子212安装于第一壁2111，电极端子212 具有第一侧面2121，第一侧面2121所在平面与第一壁2111相交。第二壁2112的边缘的第一区域内陷形成第二凹部2113，第二凹部2113用于容纳与第二壁2112相邻的电池单体21的电极端子212。
分隔梁30设置于底壁111，分隔梁30位于电池单体组20的沿第一方向X的一侧；分隔梁30沿第二方向Y延伸，第二方向Y、第一方向X和底壁111的厚度方向Z两两垂直。分隔梁30包括远离底壁111的第一表面31，分隔梁30设置有从第一表面31朝向底壁111凹陷的凹槽32。凹槽32的槽底面321设置有第二连接孔322和第一凹部。
固定座40包括座体41、连接部42、从座体41延伸出的延伸部46、以及螺母44；座体41包括面向槽底面321的第二表面411，座体41和连接部42沿第二方向Y排布，延伸部46从座体41沿底壁111的厚度方向Z延伸出，延伸部46的厚度方向与第一方向X平行。连接部42设置有第一连接孔421，第一连接孔421与第二连接孔322对应，第一紧固件60插设于第一连接孔421和第二连接孔322，并将固定座40固定于槽底面321。螺母44嵌设于座体41。固定座40还包括第一定位部43、第一限位部45和第二限位部47，第一定位部43为凸出于第二表面411的凸起，第一限位部45为设置于延伸部46的凸出部，第二限位部47包括两个卡扣471，两个卡扣471沿第二方向设置于延伸部46的两侧。
输出极50用于输出电池单体组20的电能，输出极50包括第一段51、第二段52和第三段53。第一段51与第二段52连接形成L形结构，沿第一方向X，第一段51位于电池单体组20与分隔梁30之间，第一段51的长度方向与底壁111的厚度方向Z平行，第一段51的宽度方向与第二方向Y平行，第二段52连接于第一段51的远离底壁111的一端。第三段53从第一段51的宽度方向的边缘延伸出，第三段53与电池单体组20中最靠近分隔梁30的一个电池单体21的电极端子212的第一侧面2121焊接。第二段52设置有第三连接孔521，第二紧固件穿设于第三连接孔521且与螺母44螺纹连接，以将输出极50固定于固定座40。第一限位部45位于第三段53的远离底壁111的一侧，第一限位部45与第三段53沿底壁111的厚度方向Z抵接，以限制第三段53沿底壁111的厚度方向Z移动。第二限位部47设置于延伸部46，两个卡扣471分别与第一段51的宽度方向的两侧卡接，第二限位部47用于限制第一段51沿第一段51的宽度方向移动。
上述的电池100中，电池单体组20的输出极50固定于固定座40，并且固定座40安装于分隔梁30，能够提高箱体10内的空间利用率，进而使得电池100具有较高的能量密度。
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 (23)

  1. 一种电池，包括：
    箱体；
    电池单体组，设置于所述箱体内，所述电池单体组包括沿第一方向层叠设置且相互电连接的多个电池单体；
    分隔梁，固定于所述箱体内，所述分隔梁位于所述电池单体组的沿所述第一方向的一侧；
    固定座，安装于所述分隔梁；
    输出极，用于输出所述电池单体组的电能，所述输出极固定于所述固定座。
  2. 根据权利要求1所述的电池，其中，所述箱体包括底壁和侧壁，所述侧壁围设于所述底壁的周围，所述分隔梁设置于所述底壁，所述分隔梁沿第二方向延伸，所述第二方向、所述第一方向和所述底壁的厚度方向两两相交。
  3. 根据权利要求2所述的电池，其中，所述分隔梁包括远离所述底壁的第一表面，所述分隔梁设置有从所述第一表面朝向所述底壁凹陷的凹槽，所述固定座至少部分设置于所述凹槽内。
  4. 根据权利要求3所述的电池，其中，所述固定座不凸出于所述第一表面。
  5. 根据权利要求3或4所述的电池，其中，所述固定座包括第一连接孔，所述凹槽的槽底面设置有与所述第一连接孔对应的第二连接孔，所述电池还包括第一紧固件，所述第一紧固件被配置为插设于所述第一连接孔和所述第二连接孔，以将所述固定座固定于所述槽底面。
  6. 根据权利要求5所述的电池，其中，所述固定座包括座体和连接部，所述输出极固定于所述座体，所述连接部连接于所述座体，所述第一连接孔设置于所述连接部。
  7. 根据权利要求6所述的电池，其中，所述固定座还包括第一定位部，所述分隔梁包括与所述第一定位部对应的第二定位部，所述第一定位部与所述第二定位部配合。
  8. 根据权利要求7所述的电池，其中，所述座体包括面向所述槽底面的第二表面，所述第一定位部为凸出于所述第二表面的凸起，所述第二定位部为设置于所述槽底面的第一凹部。
  9. 根据权利要求6-8中任一项所述的电池，其中，所述固定座还包括螺母，所述螺母嵌设于所述座体，所述输出极设置有第三连接孔，所述电池还包括第二紧固件，所述第二紧固件穿设于所述第三连接孔且与所述螺母螺纹连接，以将所述输出极固定于所述固定座。
  10. 根据权利要求6-9中任一项所述的电池，其中，所述座体和所述连接部沿所述第二方向排布。
  11. 根据权利要求2-10中任一项所述的电池，其中，所述输出极包括第一段和第二段，所述第一段和所述第二段连接形成L形结构，所述第一段与所述电池单体组中最靠近所述分隔梁的一个所述电池单体电连接，所述第二段固定于所述固定座。
  12. 根据权利要求11所述的电池，其中，沿所述第一方向，所述第一段位于所述电池单体组与所述分隔梁之间，所述第一段的长度方向与所述底壁的厚度方向平行，所述第二段连接于所述第一段的远离所述底壁的一端。
  13. 根据权利要求11或12所述的电池，其中，所述电池单体包括外壳和电极端子，所述外壳具有面向所述分隔梁的第一壁，所述电极端子安装于所述第一壁，所述电极端子具有第一侧面，所述第一侧面所在平面与所述第一壁相交，所述输出极连接于所述电池单体组中最靠近所述分隔梁的一个所述电池单体的所述电极端子的所述第一侧面。
  14. 根据权利要求13所述的电池，其中，所述输出极还包括第三段，所述第三段从所述第一段的宽度方向的边缘延伸出，所述第三段连接于所述第一侧面，所述第一段的宽度方向与所述第一方向相交。
  15. 根据权利要求14所述的电池，其中，所述固定座包括第一限位部，所述第一限位部与所述第三段沿所述底壁的厚度方向抵接，以限制所述第三段沿所述底壁的厚度方向移动。
  16. 根据权利要求15所述的电池，其中，所述第一限位部位于所述第三段的背离所述底壁的一侧。
  17. 根据权利要求13-16中任一项所述的电池，其中，所述外壳包括沿所述第一方向相对设置的所述第一壁和第二壁、沿所述第二方向相对设置的第三壁和第四壁、以及沿所述底壁的厚度方向相对设置的第五壁和第六壁，所述第三壁的面积和所述第四壁的面积均小于所述第一壁的面积，所述第三壁的面积和所述第四壁的面积均小于所述第二壁的面积，所述第五壁的面积和所述第六壁的 面积均小于所述第一壁的面积，所述第五壁的面积和所述第六壁的面积均小于所述第二壁的面积。
  18. 根据权利要求13-17中任一项所述的电池，其中，所述外壳还具有与所述第一壁相对设置的第二壁，所述第二壁的边缘的第一区域内陷形成第二凹部，所述第二凹部用于容纳与所述第二壁相邻的所述电池单体的所述电极端子。
  19. 根据权利要求11-18中任一项所述的电池，其中，所述固定座包括座体和从所述座体朝向所述底壁延伸的延伸部，沿所述第一方向，所述延伸部位于所述第一段与所述分隔梁之间。
  20. 根据权利要求11-19中任一项所述的电池，其中，所述固定座包括第二限位部，所述第二限位部用于限制所述第一段沿所述第一段的宽度方向移动。
  21. 根据权利要求20所述的电池，其中，所述第二限位部包括至少两个卡扣，所述至少两个卡扣分别与所述第一段的沿所述宽度方向的两侧卡接。
  22. 根据权利要求1-21中任一项所述的电池，其中，所述电池单体组与所述分隔梁之间设置有绝缘层。
  23. 一种用电设备，包括权利要求1-22中任一项所述的电池。
PCT/CN2022/126812 2022-10-21 2022-10-21 电池及用电设备 WO2024082299A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008071638A (ja) * 2006-09-14 2008-03-27 Nissan Motor Co Ltd 組電池および組電池の製造方法
CN113725548A (zh) * 2021-08-31 2021-11-30 蜂巢能源科技有限公司 电池包
CN216213929U (zh) * 2021-11-10 2022-04-05 宁德时代新能源科技股份有限公司 输出极底座、电池和用电装置
CN114824604A (zh) * 2022-05-17 2022-07-29 中创新航科技股份有限公司 电池包及输出端防护支座
CN217306708U (zh) * 2022-05-17 2022-08-26 中创新航科技股份有限公司 输出极防护装置及电池包

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008071638A (ja) * 2006-09-14 2008-03-27 Nissan Motor Co Ltd 組電池および組電池の製造方法
CN113725548A (zh) * 2021-08-31 2021-11-30 蜂巢能源科技有限公司 电池包
CN216213929U (zh) * 2021-11-10 2022-04-05 宁德时代新能源科技股份有限公司 输出极底座、电池和用电装置
CN114824604A (zh) * 2022-05-17 2022-07-29 中创新航科技股份有限公司 电池包及输出端防护支座
CN217306708U (zh) * 2022-05-17 2022-08-26 中创新航科技股份有限公司 输出极防护装置及电池包

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