WO2024077622A1 - 电池及用电设备 - Google Patents

电池及用电设备 Download PDF

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Publication number
WO2024077622A1
WO2024077622A1 PCT/CN2022/125501 CN2022125501W WO2024077622A1 WO 2024077622 A1 WO2024077622 A1 WO 2024077622A1 CN 2022125501 W CN2022125501 W CN 2022125501W WO 2024077622 A1 WO2024077622 A1 WO 2024077622A1
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WO
WIPO (PCT)
Prior art keywords
battery
battery cell
along
battery according
electrode terminals
Prior art date
Application number
PCT/CN2022/125501
Other languages
English (en)
French (fr)
Inventor
刘瑞堤
王增忠
吴友鑫
王鹏
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/CN2022/125501 priority Critical patent/WO2024077622A1/zh
Priority to CN202280089616.3A priority patent/CN118556331A/zh
Priority to CN202321954368.2U priority patent/CN220753603U/zh
Publication of WO2024077622A1 publication Critical patent/WO2024077622A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery and an electrical device.
  • a power battery generally includes a housing and a battery cell.
  • the battery cell is disposed in the housing and fixed to the housing by means of upper and lower adhesives.
  • the adhesive fixing method is not convenient for battery maintenance and inspection.
  • the present application provides a battery and an electrical device to solve the problem of inconvenience in maintenance and detection of existing batteries.
  • a first aspect of the present application provides a battery, the battery comprising:
  • a battery assembly is accommodated in the box, the battery assembly includes at least one battery cell, the battery assembly is arranged along a first direction, the first direction is the length direction of the battery or the travel direction of the electrical equipment having the battery, the battery cell has a first surface and a second surface, the first surface is provided with an electrode terminal, the second surface is connected to the box, the second surface intersects with a third direction, and the third direction intersects with both the first direction and the horizontal plane.
  • the battery cell has a first surface and a second surface, and the second surface is arranged to intersect with a third direction (the third direction intersects with the first direction and the horizontal direction respectively), wherein the electrode terminal is arranged on the first surface, and the second surface is connected to the case, so that there is no electrode terminal on the connecting surface between the battery cell and the case, so that the electrode terminal can be fully exposed to the outside after the case is opened, so that after the case is opened, the battery can be repaired and tested without separating the battery cell from the case, thereby improving the convenience of battery repair and testing.
  • the length direction of the battery is parallel to or intersects with the travel direction of the electric device.
  • the first surface and the second surface are arranged opposite to each other, and the battery cell also has a third surface, which is the surface with the largest area of the battery cell, and the third surface is arranged along the third direction and intersects with the horizontal plane, and the third surface is connected to the first surface and the second surface.
  • the first surface and the second surface are arranged to be arranged opposite to each other in the third direction.
  • the box When the battery is repaired or tested, the box is opened, and the second surface of the battery cell is connected to the box of the battery, so that the electrode terminals on the first surface can be exposed to the outside, so that after the box is opened, the battery can be repaired and tested without separating the battery cell from the box, which further improves the convenience of battery repair and testing.
  • the third surface is the surface with the largest area, and the area of the second surface is smaller than the third surface, so that more battery cells can be connected per unit area of the box, thereby improving the battery energy density.
  • the number of the third surfaces is two, and the two third surfaces are arranged oppositely along the first direction.
  • the battery cell includes two electrode terminals with opposite polarities, and the two electrode terminals with opposite polarities are both arranged on the first surface.
  • the battery cell is provided with two third surfaces, and both third surfaces are the surfaces with the largest areas.
  • the first surface and the second surface are arranged oppositely in the third direction, and the two third surfaces are arranged oppositely in the first direction, which further improves the convenience of arranging the battery cell in the battery to meet the installation requirements of different batteries.
  • the number of the third surfaces is two, the two third surfaces are arranged oppositely along the second direction, the second direction, the first direction and the third direction intersect each other, and the battery cell includes two electrode terminals with opposite polarities, and the two electrode terminals with opposite polarities are both arranged on the first surface.
  • the battery cell is provided with two third surfaces, both of which are the surfaces with the largest areas, the first surface and the second surface are arranged oppositely in the third direction, and the two third surfaces are arranged oppositely in the second direction, which further improves the convenience of arranging the battery cells in the battery to meet the installation requirements of different batteries.
  • the number of the third surface is one
  • the battery cell includes two electrode terminals with opposite polarities
  • one of the two electrode terminals with opposite polarities is arranged on the first surface
  • the shell of the battery cell constitutes the other of the two electrode terminals with opposite polarities.
  • the battery cell is provided with a third surface
  • the third surface is the surface with the largest area. The first surface and the second surface are arranged relative to each other in the third direction, which further improves the convenience of arranging the battery cell in the battery to meet the installation requirements of different batteries.
  • the battery cell further has a third surface, the third surface is the surface with the largest area of the battery cell, the third surface is arranged along the third direction and intersects with the horizontal plane, and the first surface, the second surface and the third surface intersect with each other.
  • the second surface is connected to the box, and the electrode terminal is arranged on the first surface, so that after the box is opened, the battery can be repaired and tested without separating the battery cell from the box.
  • the number of the first surfaces is two, the two first surfaces are arranged opposite to each other along the first direction, and the battery cell includes two electrode terminals with opposite polarities;
  • the two electrode terminals with opposite polarities are both arranged on one of the first surfaces, or the two electrode terminals with opposite polarities are respectively arranged on two of the first surfaces.
  • two first surfaces are provided, and the two first surfaces are arranged opposite to each other in the first direction.
  • Two electrode terminals with opposite polarities can be arranged on one first surface at the same time, or can be arranged on two first surfaces respectively.
  • the number of the first surfaces is two, the two first surfaces are arranged opposite to each other along the second direction, the second direction, the first direction and the third direction intersect each other, and the battery cell includes two electrode terminals with opposite polarities;
  • the two electrode terminals with opposite polarities are both arranged on one of the first surfaces, or the two electrode terminals with opposite polarities are respectively arranged on two of the first surfaces.
  • two first surfaces are provided, and the two first surfaces are arranged opposite to each other in the second direction.
  • Two electrode terminals with opposite polarities can be arranged on one first surface at the same time, or can be arranged on two first surfaces respectively.
  • the second surface is the surface with the largest area of the battery cell, the area of the first surface is smaller than the area of the second surface, the first surface is arranged along the first direction and intersects with the second surface;
  • the battery cell includes two first surfaces, along the second direction, the two first surfaces are arranged opposite to each other, and the second direction, the first direction and the third direction intersect each other;
  • the battery cell includes two electrode terminals with opposite polarities, and the two electrode terminals with opposite polarities are both arranged on the same first surface, or the two electrode terminals with opposite polarities are respectively arranged on two first surfaces.
  • the second surface is the surface with the largest area, and the two first surfaces intersect with the second surface respectively.
  • the two electrode terminals with opposite polarities can be arranged on one first surface at the same time, or can be arranged on two first surfaces respectively.
  • the second surface is the surface with the largest area of the battery cell, the area of the first surface is smaller than the area of the second surface, the first surface is arranged along the second direction and intersects with the second surface, and the second direction, the first direction and the third direction intersect each other;
  • the battery cell includes two first surfaces, and the two first surfaces are arranged opposite to each other along the first direction;
  • the battery cell includes two electrode terminals with opposite polarities, and the two electrode terminals with opposite polarities are both arranged on the same first surface, or the two electrode terminals with opposite polarities are respectively arranged on two first surfaces.
  • the second surface is the surface with the largest area, and the two first surfaces intersect with the second surface respectively.
  • the two electrode terminals with opposite polarities can be arranged on one first surface at the same time, or can be arranged on two first surfaces respectively.
  • the first surface is the surface with the largest area of the battery cell.
  • the first surface is the surface with the largest area, and the electrode terminal is arranged on the first surface.
  • the battery cell includes the first surface and a fourth surface arranged opposite to the first surface, the first surface and the fourth surface are arranged opposite to each other along a first direction; a recess is provided at an edge of the fourth surface; the first surface is used to set the electrode terminal; the electrode terminal protrudes from the first surface in the second direction and corresponds to the recess.
  • the first surface is the surface with the largest area
  • the fourth surface is provided and the fourth surface and the first surface are arranged relative to each other in the first direction.
  • the battery cell includes the first surface and a fourth surface arranged opposite to the first surface, the first surface and the fourth surface are arranged opposite to each other along a second direction, and the second direction, the first direction and the third direction intersect each other; a recess is provided at an edge of the fourth surface; the first surface is used to set the electrode terminal; the electrode terminal protrudes from the first surface in the second direction and corresponds to the recess.
  • the first surface is the surface with the largest area
  • the fourth surface is provided and is arranged relative to the first surface in the second direction.
  • the battery further comprises a heat conductor, the heat conductor is arranged along the first direction, and the heat conductor is at least connected to the largest surface of the battery cell by thermal conduction.
  • the heat conductor by connecting the heat conductor to the largest surface of the battery cell by thermal conduction, the heat exchange efficiency between the battery cell and the heat conductor is increased, and the safety hazard of the battery caused by poor heat dissipation is reduced.
  • the battery includes at least two battery assemblies; along the second direction, the two sides of the heat conductive member are respectively connected to the two battery assemblies for heat conduction, and the second direction, the first direction and the third direction intersect each other.
  • the battery assemblies arranged in the box are all connected to the heat conductive member for heat conduction, which further ensures sufficient heat dissipation of the battery assemblies, so that the safety hazards caused by poor heat dissipation of the battery are further reduced.
  • the battery includes a plurality of the heat conducting members, the plurality of the heat conducting members are arranged along the second direction, and the second direction, the first direction and the third direction intersect each other.
  • the plurality of heat conducting members are provided to further increase the heat exchange capacity of the battery cells, so that the battery can be maintained within a relatively safe temperature range, further reducing the potential safety hazards caused by poor heat dissipation.
  • the heat conducting members are respectively provided on both sides of the battery assembly; the battery assembly is thermally connected to the heat conducting members on both sides.
  • the two sides of the battery assembly are thermally connected to the heat conducting members, which further increases the heat dissipation capacity of the battery assembly, so that the temperature of the battery can be maintained within a relatively safe temperature range, further reducing the safety hazards caused by poor heat dissipation.
  • the battery cell along the second direction, includes two opposite third surfaces, the third surface is the surface with the largest area of the battery cell, and the two third surfaces of the battery cell are respectively thermally connected to one of the thermal conductive members.
  • the two third surfaces with the largest area are provided, and the two third surfaces are respectively thermally connected to one of the thermal conductive members, which further increases the heat exchange efficiency between the battery cell and the thermal conductive member, thereby improving the heat dissipation performance of the battery cell and further reducing the safety hazards caused by excessive temperature of the battery.
  • the battery cell includes an electrode assembly
  • the electrode assembly includes a main body and a tab protruding from the main body, the tab being electrically connected to the electrode terminal; along the second direction, the projections of the heat conductive member and the main body at least partially overlap, and the first direction, the second direction, and the third direction intersect with each other.
  • the heat conductive member and the main body can effectively exchange heat with the main body, thereby improving the heat exchange effect on the battery cell.
  • the size of the main body is L1
  • the size of the heat conducting component is L2, wherein 0.5 ⁇ L2/L1 ⁇ 1.5.
  • the L2/L1 range value is set within the interval [0.5, 1.5], which can reduce the space occupied by the heat conductive member in the third direction, so that the space utilization rate of the battery is further improved.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the heat exchange area between the heat conductor and the main body can be reasonably set, which can greatly enhance the heat exchange effect of the heat conductor on the main body.
  • a channel for accommodating a heat exchange medium is provided in the heat conductive member.
  • the battery cell transfers heat with the heat exchange medium in the channel through the heat conductive member, and the heat exchange medium can flow in the channel.
  • This heat exchange method has high heat exchange efficiency and simple structure.
  • the battery further comprises a current collecting member, wherein the current collecting member is in fluid communication with the heat conducting member;
  • the current collecting member is provided at one end of the heat conducting member located in the first direction, or the current collecting members are provided at both ends of the heat conducting member located in the first direction.
  • the current collector is provided to collect the heat exchange medium in the heat conductive member, reducing the number of components, thereby improving the space utilization rate in the box.
  • the current collector is arranged in a position to avoid squeezing or impact, reducing the possibility of damage to the current collector, so that the heat exchange medium can fully dissipate heat from the battery monomer, further reducing the safety hazard caused by excessive temperature of the battery.
  • the two current collectors are arranged at one end of the heat conductive member in the first direction, and the two current collectors are arranged along the third direction.
  • two current collectors are provided, thereby improving the current collection performance of the heat exchange medium, so that the heat exchange medium can have a good flow rate, and further improving the heat exchange capacity of the heat exchange medium to the battery cell.
  • the two current collectors are jointly provided at one end of the first direction and arranged along the third direction, which can effectively reduce the space occupied by the current collectors in the battery along the first direction, thereby facilitating the arrangement of other structures in the battery.
  • the battery cell further comprises a pressure relief mechanism, which is disposed on any surface of the battery cell.
  • a pressure relief mechanism which is disposed on any surface of the battery cell.
  • the pressure relief mechanism is disposed on the first surface or the second surface.
  • the location of the pressure relief mechanism can meet the requirements of different battery cell types, further improving the safety performance of the battery.
  • the battery assembly includes at least two battery cells, and the at least two battery cells are arranged along the first direction. In this embodiment, at least two battery cells are arranged along the first direction to facilitate the layout of the battery cells inside the box.
  • the battery cell includes an electrode assembly;
  • the electrode assembly is a wound structure and is flat, and the outer surface of the electrode assembly includes two flat surfaces, and the two flat surfaces face each other along the second direction;
  • the electrode assembly is a laminated structure, and the first electrode sheet, the diaphragm, and the second electrode sheet of the electrode assembly are laminated along the second direction;
  • the second direction, the first direction and the third direction intersect each other.
  • the electrode assembly by arranging the electrode assembly into a winding structure and being flat, and the outer surface of the electrode assembly includes two flat surfaces, the two flat surfaces face each other along the second direction, or the electrode assembly is a stacked structure, the space occupied by the electrode assembly in the first direction is reduced, so as to facilitate the layout and installation of other components of the battery in the first direction.
  • the maximum size of the battery cell is L
  • the maximum size of the battery cell is D
  • the second direction, the first direction and the third direction intersect each other, wherein the L/D range value is 1 to 30.
  • the maximum size of the battery cell is L
  • the maximum size of the battery cell is H
  • the L/H range is 0.5 to 6.
  • the battery cells are arranged according to the above size ratios to maximize the power of the battery cells.
  • the box includes a first part and a second part, the first part and the second part are connected in a detachable manner, the number of the second surface is at least one, and at least one second surface is bonded to the first part or the second part.
  • the bonding and fixing connection has a high strength, which can effectively ensure the stability of the battery cell in the box.
  • the number of the second surfaces is two, the two second surfaces are arranged opposite to each other, the first part is bonded to one second surface, and the second part is bonded to the other second surface.
  • the connection strength between the battery cell and the box is further improved, so that the stability of the battery cell in the box is further improved.
  • the second surface is fixedly connected to the first part and/or the second part through a first adhesive layer
  • the battery further includes a heat conductor, which is heat-conductively connected to the largest surface of the battery cell through a second adhesive layer, and the thermal conductivity of the first adhesive layer is less than or equal to the thermal conductivity of the second adhesive layer.
  • the thermal conductivity of the first adhesive layer is set to be less than or equal to the thermal conductivity of the second adhesive layer to ensure more effective heat dissipation of the battery cell through the heat conductor.
  • the ratio of the thermal conductivity of the first adhesive layer to the thermal conductivity of the second adhesive layer is in the range of 0.1 to 1. In this embodiment, the above ratio range can effectively dissipate heat from the battery cell through the thermal conductive member.
  • the battery further comprises a baffle, the baffle being arranged along the third direction opposite to the first surface of the battery cell having the electrode terminal, and the interval between the electrode terminal and the baffle being 1.2 mm to 25 mm.
  • the baffle is arranged at an interval of 1.2 mm to 25 mm from the electrode terminal, which can prevent the baffle from colliding with the electrode terminal when the battery collides along the second direction, thereby causing damage to the electrode terminal.
  • the second aspect of the present application proposes an electric device, comprising the battery as described above, wherein the battery is used to provide electric energy to drive the electric device to move.
  • the first direction is the moving direction of the electric device.
  • the first direction is set as the walking direction of the electrical equipment, and the third direction intersects with the first direction and the horizontal direction respectively.
  • the battery cell located inside the battery box has a first surface and a second surface.
  • the electrode terminal is set on the first surface, and the second surface is connected to the box. The setting of the first direction facilitates the installation and layout of the battery on the electrical equipment, and meets the usage requirements of different electrical equipment by adjusting the arrangement of the battery cells inside the box.
  • FIG1 schematically shows a schematic structural diagram of a vehicle according to an embodiment of the present application
  • FIG2 schematically shows an exploded structural diagram of a battery according to an embodiment of the present application
  • FIG3 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application
  • FIG4 schematically shows an exploded structural diagram of a battery cell according to an embodiment of the present application
  • FIG5 schematically shows an exploded structural diagram of a battery according to an embodiment of the present application
  • FIG6 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG6 ;
  • FIG8 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG9 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG8 ;
  • FIG10 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG. 11 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG12 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG10 and FIG11;
  • FIG13 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG14 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG13;
  • FIG15 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG16 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG15;
  • FIG17 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG18 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG17;
  • FIG19 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG20 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG19;
  • FIG21 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG22 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG21;
  • FIG23 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG24 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG23;
  • FIG25 schematically shows a schematic structural diagram of a heat conducting member according to an embodiment of the present application.
  • FIG26 schematically shows a schematic structural diagram of the second part of the box according to an embodiment of the present application.
  • FIG27 schematically shows a schematic structural diagram of a battery according to an embodiment of the present application (the first part of the box is not shown);
  • FIG28 is a schematic diagram of the enlarged structure of part A in the structure shown in FIG27;
  • Fig. 29 is a cross-sectional view of the B-B portion of the structure shown in Fig. 27;
  • FIG30 is a schematic diagram of an enlarged structure of portion C in the structure shown in FIG29;
  • FIG31 is a cross-sectional view of the structure shown in FIG27;
  • FIG32 is a schematic diagram of the enlarged structure of portion D in the structure shown in FIG31;
  • Figure 33 is a schematic diagram of the distribution structure of batteries on a vehicle provided in one embodiment of the present application.
  • box body 31: first part, 32: second part, 321: baffle;
  • the term "and/or" is only a description of the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • multiple refers to more than two (including two).
  • multiple groups refers to more than two groups (including two groups), and “multiple pieces” refers to more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.
  • existing power batteries usually include a case and a battery cell.
  • the battery cell is arranged in the case and fixed to the case by means of upper and lower adhesives.
  • the adhesive fixing method is not convenient for battery maintenance and inspection. Therefore, how to solve the problem that battery cells with upper and lower electrode terminals are not convenient for battery maintenance and inspection has become a technical problem that technical personnel in this field urgently need to solve.
  • a first surface and a second surface are provided on the battery cell, and the second surface is provided to intersect with a third direction (the third direction intersects with the first direction and the horizontal direction respectively), wherein the electrode terminals are provided on the first surface, and the second surface is connected to the case, so that there are no electrode terminals on the connecting surface between the battery cell and the case, so that the electrode terminals can be fully exposed to the outside after the case is opened, thereby improving the convenience of battery maintenance and inspection.
  • the battery cells involved in the embodiments of the present application can be used, but not limited to, in electrical devices such as vehicles, ships or aircraft.
  • a power supply system comprising the battery cells, batteries, etc. involved in the present application can be used to form the electrical device.
  • the electric device using the battery as the power source may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, 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 1 provided in some embodiments of the present application.
  • the vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle.
  • the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • a battery 10 is arranged inside the vehicle 1, and the battery 10 can be arranged at the bottom, head or tail of the vehicle 1.
  • the battery 10 can be used to power the vehicle 1.
  • the battery 10 can be used as an operating power source for the vehicle 1.
  • the vehicle 1 may also include a controller 11 and a motor 12.
  • the controller 11 is used to control the battery 10 to power the motor 12, for example, for the starting, navigation and driving power requirements of the vehicle 1.
  • the battery 10 can be used not only as an operating power source for the vehicle 1 , but also as a driving power source for the vehicle 10 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .
  • the battery 10 may include a plurality of battery cells, and a battery cell refers to the smallest unit that constitutes a battery assembly or a battery pack.
  • a plurality of battery cells can be connected in series and/or in parallel via electrode terminals for use in various applications.
  • the battery 10 mentioned in the present application includes a battery assembly or a battery pack. Among them, a plurality of battery cells can be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series and parallel connection.
  • the battery 10 may also be referred to as a battery pack.
  • a plurality of battery cells may directly constitute a battery pack, or may first constitute a battery assembly, and then the battery assembly may constitute a battery pack.
  • FIG2 shows a schematic diagram of the structure of a battery 10 according to an embodiment of the present application.
  • the battery 10 may include a plurality of battery assemblies 20 and a housing 30, wherein the plurality of battery assemblies 20 are contained inside the housing 30.
  • the housing 30 is used to contain battery cells 21 or battery assemblies 20 to prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • the housing 30 may be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres, which is not limited in the present application.
  • the housing 30 may be made of alloy materials such as aluminum alloys and iron alloys, or may be polymer materials such as polycarbonate and polyisocyanurate foam plastics, or may be a composite material such as glass fiber and epoxy resin, which is not limited in the present application.
  • the box body 30 may include a first portion 31 and a second portion 32, the first portion 31 and the second portion 32 cover each other, and the first portion 31 and the second portion 32 jointly define a space for accommodating the battery cell 21.
  • the second portion 32 may be a hollow structure with one end open, and the first portion 31 may be a plate-like structure, the first portion 31 covers the open side of the second portion 32, so that the first portion 31 and the second portion 32 jointly define a space for accommodating the battery cell 21; the first portion 31 and the second portion 32 may also be hollow structures with one side open, and the open side of the first portion 31 covers the open side of the second portion 32.
  • FIG3 shows a schematic diagram of the structure of a battery assembly 20 according to an embodiment of the present application.
  • the battery assembly 20 may include a plurality of battery cells 21.
  • the plurality of battery cells 21 may be connected in series, in parallel, or in a mixed connection to form a battery assembly 20, and the plurality of battery assemblies 20 may be connected in series, in parallel, or in a mixed connection to form a battery.
  • the battery cells 21 may include lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in the embodiments of the present application.
  • the battery cells 21 may be cylindrical, flat, rectangular, or in other shapes, etc., which are not limited in the embodiments of the present application.
  • the battery cells 21 are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, which are not limited in the embodiments of the present application.
  • the battery cell 21 includes a housing 211 , an end cover 212 and an electrode assembly 213 .
  • the end cap 212 refers to a component that covers the opening of the shell 211 to isolate the internal environment of the battery cell 21 from the external environment.
  • the shape of the end cap 212 can be adapted to the shape of the shell 211 to match the shell 211.
  • the end cap 212 can be made of a material with a certain hardness and strength (such as an aluminum alloy), so that the end cap 212 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.
  • the material of the end cap 212 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 do not impose special restrictions on this.
  • an insulating member can also be provided on the inner side of the end cap 212, and the insulating member can be used to isolate the electrical connection components in the shell 211 from the end cap 212 to reduce the risk of short circuit.
  • the insulating member can be plastic, rubber, etc.
  • the shell 211 is a component used to cooperate with the end cap 212 to form the internal environment of the battery cell 21, wherein the formed internal environment can be used to accommodate the electrode assembly 213, the electrolyte and other components.
  • the shell 211 and the end cap 212 can be independent components, and an opening can be set on the shell 211, and the internal environment of the battery cell 21 is formed by covering the opening with the end cap 212.
  • the end cap 212 and the shell 211 can also be integrated. Specifically, the end cap 212 and the shell 211 can form a common connection surface before other components are put into the shell, and when the interior of the shell 211 needs to be encapsulated, the end cap 212 covers the shell 211.
  • the shell 211 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 211 can be determined according to the specific shape and size of the battery cell assembly.
  • the material of the shell 211 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 present application proposes a battery 10, which includes a case 30 and a battery assembly 20, the battery assembly 20 is accommodated in the case 30, the battery assembly 20 includes at least one battery cell 21, the battery assembly 20 is arranged along a first direction, the first direction is the length direction of the battery 10 or the walking direction of an electrical device having the battery 10, the battery cell 21 has a first surface 216 and a second surface 217, the first surface 216 is provided with an electrode terminal 214, the second surface 217 is connected to the case 30, the second surface 217 intersects with a third direction, and the third direction intersects with both the first direction and the horizontal plane.
  • the electrical device is a vehicle 1. Driven by the battery 10, the vehicle 1 can move.
  • the battery assembly 20 constituting the battery 10 is arranged along a first direction, which can be the moving direction of the vehicle 1, that is, the battery assembly 20 is arranged along the moving direction of the vehicle 1.
  • the battery 10 is a rectangular structure, and the rectangular battery 10 has a length direction, a width direction, and a height direction.
  • the battery assembly 20 located in the box 30 is arranged along the first direction, which can also be the length direction of the battery 10.
  • the box body 30 may include a first part 31 and a second part 32, the second part 32 may be a hollow structure with one end open, the first part 31 may be a plate-like structure, and the first part 31 covers the open side of the second part 32, so that the first part 31 and the second part 32 together define a space for accommodating the battery cell 21.
  • the matching relationship between the first part 31 and the second part 32 is released, and then the first part 31 and the second part 32 are separated to expose the battery cell 21 to the outside, so that the battery 10 can be repaired and tested.
  • the battery cells 21 are arranged inside the box 30, and the number of the battery cells 21 can be one or greater than or equal to two. As shown in FIG. 5 , the number of the battery cells 21 in FIG. 5 is greater than two, wherein the plurality of battery cells 21 are arranged in a first direction.
  • the battery cell 21 has a first surface 216 and a second surface 217, and the second surface 217 is configured to intersect with a third direction (the third direction intersects with the first direction and the horizontal direction respectively), wherein the first surface 216 is provided with an electrode terminal 214, and the second surface 217 is connected to the case 30, so that there is no electrode terminal 214 on the connecting surface between the battery cell 21 and the case 30, so that the electrode terminal 214 can be fully exposed to the outside after the case 30 is opened, so that after the case 30 is opened, the battery 10 can be repaired and inspected without separating the battery cell 21 and the case 30, thereby improving the convenience of repairing and inspecting the battery 10.
  • the length direction of the battery 10 is parallel to or intersects with the moving direction of the electrical device.
  • the travel direction of the electric device refers to the relative displacement that the electric device can produce, and the relative displacement can be forward or backward.
  • the length direction of the battery 10 is parallel to the travel direction of the electric device, the length direction of the battery 10 is set along the travel direction of the electric device; when the length direction of the battery 10 intersects with the travel direction of the electric device, the length direction of the battery 10 is set at an angle with the travel direction of the electric device, and the angle is not equal to 0.
  • the battery 10 can be installed on the electrical equipment according to the needs of the electrical equipment, thereby improving the convenience of arranging the battery 10 in the electrical equipment.
  • the first surface 216 and the second surface 217 are arranged opposite to each other, and the battery cell 21 also has a third surface 218, which is the surface with the largest area of the battery cell 21, and the third surface 218 is arranged along the third direction and intersects with the horizontal plane, and the third surface 218 is connected to the first surface 216 and the second surface 217.
  • the battery cell 21 has multiple surfaces, wherein the third surface 218 is the surface with the largest area among the multiple surfaces, that is, the areas of the other surfaces of the battery cell 21 are all smaller than the area of the third surface 218 .
  • the third surface 218 is arranged along the third direction and intersects with the horizontal plane, and the first surface 216 and the second surface 217 are arranged opposite to each other in the third direction, that is, the first surface 216 and the second surface 217 are arranged in parallel and spaced apart.
  • the first surface 216 and the second surface 217 are arranged to be arranged opposite to each other in the third direction, and the electrode terminal 214 is arranged on the first surface 216, that is, the battery cell 21 exposes the electrode terminal 214 in the up and down direction (the third direction).
  • the box 30 is opened, and the second surface 217 of the battery cell 21 is connected to the box 30 of the battery 10, so that the electrode terminal 214 on the first surface 216 can be exposed to the outside, so that after the box 30 is opened, the battery 10 can be repaired and inspected without separating the battery cell 21 and the box 30, which further improves the convenience of repairing and inspecting the battery 10.
  • the third surface 218 is the surface with the largest area, and the area of the second surface 217 is smaller than that of the third surface 218 , so that more battery cells 21 can be connected within a unit area of the box body 30 , thereby improving the energy density of the battery 10 .
  • the first direction and the second direction are both set in the horizontal plane
  • the third direction is set in the vertical plane
  • the first direction, the second direction and the third direction are set perpendicularly to each other.
  • the first direction is the walking direction of the electrical equipment
  • the second direction is perpendicular to the driving direction of the electrical equipment
  • the third direction is perpendicular to the first direction and the second direction respectively.
  • the two third surfaces 218 are arranged opposite to each other along the first direction, and the battery cell 21 includes two electrode terminals 214 with opposite polarities, and the two electrode terminals 214 with opposite polarities are both arranged on the first surface 216 .
  • the battery cell 21 has a first surface 216, a second surface 217 and two third surfaces 218, wherein the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, and the two third surfaces 218 are arranged relative to each other in the first direction, so that the battery cell 21 constitutes a square shell battery cell.
  • the battery cell 21 is provided with two third surfaces 218, and the two third surfaces 218 are both surfaces with the largest area.
  • the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, and the two third surfaces 218 are arranged relative to each other in the first direction, which further improves the convenience of arranging the battery cell 21 in the battery 10 to meet the installation requirements of different batteries 10.
  • the structure of the square shell battery cell is arranged in the box body 30, and the large surface of the square shell battery cell (the surface with the largest area, that is, the third surface 218) intersects with the first direction, which not only improves the space utilization inside the box body 30, so that the energy density of the battery 10 can be improved, but also facilitates the layout of the square shell battery cell in the box body 30, so that the square shell battery cell meets the installation requirements of different batteries 10.
  • the first surface 216 and the second surface 217 respectively form the top surface and the bottom surface of the square shell battery cell, that is, one of the first surface 216 and the second surface 217 is the top surface of the square shell battery cell, and the other of the first surface 216 and the second surface 217 is the bottom surface of the square shell battery cell.
  • Two electrode terminals 214 with opposite polarities are both arranged on the first surface 216, so that the square shell battery cell has an upper electrode terminal 214 or a lower electrode terminal 214.
  • the number of third surfaces 218 is two, the two third surfaces 218 are arranged opposite to each other along the second direction, the second direction, the first direction and the third direction intersect each other, and the battery cell 21 includes two electrode terminals 214 with opposite polarities, and the two electrode terminals 214 with opposite polarities are both arranged on the first surface 216.
  • the battery cell 21 has a first surface 216, a second surface 217 and two third surfaces 218, wherein the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, and the two third surfaces 218 are arranged relative to each other in the second direction, so that the battery cell 21 constitutes a square shell battery cell.
  • the battery cell 21 is provided with two third surfaces 218, and the two third surfaces 218 are both surfaces with the largest area.
  • the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, and the two third surfaces 218 are arranged relative to each other in the second direction, which further improves the convenience of arranging the square shell battery cells in the battery 10 to meet the installation requirements of different batteries 10.
  • the structure of the square shell battery cell is arranged in the box body 30, and the large surface of the square shell battery cell (the surface with the largest area, that is, the third surface 218) intersects with the second direction, which not only improves the space utilization inside the box body 30, so that the energy density of the battery 10 can be improved, but also facilitates the layout of the square shell battery cell in the box body 30, so that the battery cell 21 meets the installation requirements of different batteries 10.
  • the first surface 216 and the second surface 217 respectively form the top surface and the bottom surface of the square shell battery cell, that is, one of the first surface 216 and the second surface 217 is the top surface of the square shell battery cell, and the other of the first surface 216 and the second surface 217 is the bottom surface of the square shell battery cell.
  • Two electrode terminals 214 with opposite polarities are both arranged on the first surface 216, so that the square shell battery cell has an upper electrode terminal 214 or a lower electrode terminal 214.
  • the number of the third surface 218 is one
  • the battery cell 21 includes two electrode terminals 214 with opposite polarities
  • one of the two electrode terminals 214 with opposite polarities is arranged on the first surface 216
  • the shell 211 of the battery cell 21 constitutes the other of the two electrode terminals 214 with opposite polarities.
  • the battery cell 21 has a first surface 216, a second surface 217 and a third surface 218, wherein the first surface 216 and the second surface 217 are arranged relative to each other in a third direction, and the third surface 218 is arranged in the third direction and intersects with a horizontal plane, so that the battery cell 21 constitutes a cylindrical battery cell.
  • the battery cell 21 is provided with a third surface 218, and the third surface 218 is the surface with the largest area.
  • the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, which further improves the convenience of arranging the battery cell 21 in the battery 10 to meet the installation requirements of different batteries 10.
  • the structure of the cylindrical battery cell is arranged in the box body 30, and the large surface of the cylindrical battery cell (the surface with the largest area, i.e., the third surface 218 is the outer peripheral surface of the cylindrical battery cell) is used to arrange the battery cell 21 as a cylindrical battery cell, thereby facilitating the layout and installation of the battery cell 21 in the box body 30, which not only improves the space utilization inside the box body 30, but also enables the energy density of the battery 10 to be improved.
  • the first surface 216 and the second surface 217 respectively form the top surface and the bottom surface of the cylindrical battery cell, that is, one of the first surface 216 and the second surface 217 is the top surface of the cylindrical battery cell, and the other of the first surface 216 and the second surface 217 is the bottom surface of the cylindrical battery cell.
  • One of the two electrode terminals 214 with opposite polarities is arranged on the first surface 216, and the shell 211 of the cylindrical battery cell constitutes the other electrode terminal 214, so that the cylindrical battery cell has a structure with the pole 214 at the top or the electrode terminal 214 at the bottom.
  • the battery cell 21 further has a third surface 218, which is the surface with the largest area of the battery cell 21.
  • the third surface 218 is arranged along a third direction and intersects with the horizontal plane.
  • the first surface 216, the second surface 217 and the third surface 218 intersect with each other.
  • the first surface 216 intersects with the second surface 217 and the third surface 218 respectively, the second surface 217 intersects with the third direction, the second surface 217 constitutes the top surface or the bottom surface of the battery cell 21, the first surface 216 and the third surface 218 constitute the outer peripheral surface of the battery cell 21, the electrode terminal 214 is arranged on the first surface 216, and the second surface 217 is connected to the box body 30 of the battery 10.
  • the box body 30 of the battery 10 is opened.
  • the first surface 216 with the electrode terminal 214 can be exposed to the outside, so that the battery 10 can be repaired and inspected through the electrode terminal 214, thereby improving the convenience of repairing and inspecting the battery 10.
  • the second surface 217 is connected to the box body 30, the first surface 216 and the second surface 217 are arranged adjacent to each other, and the electrode terminal 214 is arranged on the first surface 216.
  • the electrode terminal 214 will not be blocked, so that the battery 10 can be effectively repaired and inspected through the electrode terminal 214.
  • the number of first surfaces 216 is two, the two first surfaces 216 are arranged opposite to each other along a first direction, and the battery cell 21 includes two electrode terminals 214 with opposite polarities, wherein the two electrode terminals 214 with opposite polarities are both arranged on one first surface 216, or the two electrode terminals 214 with opposite polarities are respectively arranged on two first surfaces 216.
  • the third surface 218 is the surface with the largest area of the battery cell 21, and the first surface 216, the second surface 217 and the third surface 218 intersect each other, wherein the number of the first surfaces 216 is two, and the two first surfaces 216 are arranged opposite to each other in the first direction.
  • Two first surfaces 216 are arranged, and the two first surfaces 216 are arranged opposite to each other in the first direction, and two electrode terminals 214 with opposite polarities can be arranged on one first surface 216 at the same time, or can be arranged on two first surfaces 216 respectively, which improves the convenience of arranging the electrode terminals 214 on the basis of satisfying the convenience of the maintenance and detection of the battery 10, and meets the diversity requirements of the battery 10.
  • the number of first surfaces 216 is two, the two first surfaces 216 are arranged opposite to each other along the second direction, the second direction, the first direction and the third direction intersect each other, and the battery cell 21 includes two electrode terminals 214 with opposite polarities, wherein the two electrode terminals 214 with opposite polarities are both arranged on one first surface 216, or the two electrode terminals 214 with opposite polarities are respectively arranged on two first surfaces 216.
  • the third surface 218 is the surface with the largest area of the battery cell 21, and the first surface 216, the second surface 217 and the third surface 218 intersect each other, wherein the number of the first surfaces 216 is two, and the two first surfaces 216 are arranged opposite to each other in the second direction.
  • Two first surfaces 216 are arranged, and the two first surfaces 216 are arranged opposite to each other in the second direction.
  • Two electrode terminals 214 with opposite polarities can be arranged on one first surface 216 at the same time, or can be arranged on two first surfaces 216 respectively.
  • the convenience of the arrangement of the electrode terminals 214 is further improved, and the diversity requirements of the battery 10 are further met.
  • the second surface 217 is the largest surface of the battery cell 21, the area of the first surface 216 is smaller than the area of the second surface 217, the first surface 216 is arranged along the first direction and intersects with the second surface 217; the battery cell 21 includes two first surfaces 216, along the second direction, the two first surfaces 216 are arranged opposite to each other, and the second direction, the first direction and the third direction intersect each other.
  • the battery cell 21 includes two electrode terminals 214 with opposite polarities, the two electrode terminals 214 with opposite polarities are both arranged on the same first surface 216, or the two electrode terminals 214 with opposite polarities are respectively arranged on the two first surfaces 216.
  • the second surface 217 is connected to the box body 30 of the battery cell 21, and the second surface 217 is the surface with the largest area, thereby increasing the contact area between the second surface 217 and the box body 30, thereby improving the connection strength and stability between the battery cell 21 and the box body 30.
  • first surface 216 and the second surface 217 are arranged to intersect, and the electrode terminal 214 is arranged on the first surface 216, so that there is no electrode terminal 214 on the surface connected to the box body 30, so that the electrode terminal 214 can be fully exposed after the box body 30 is opened, thereby improving the convenience of repairing and inspecting the battery 10.
  • the two first surfaces 216 are arranged opposite to each other in the second direction and intersect with the second surface 217 respectively.
  • the two electrode terminals 214 with opposite polarities can be arranged on one first surface 216 at the same time, or can be arranged on two first surfaces 216 respectively.
  • the convenience of arranging the electrode terminals 214 is further improved, and the diversity requirements of the battery 10 are further met.
  • the second surface 217 is the surface with the largest area of the battery cell 21, the area of the first surface 216 is smaller than the area of the second surface 217, the first surface 216 is arranged along the second direction and intersects with the second surface 217, and the second direction, the first direction and the third direction intersect each other; the battery cell 21 includes two first surfaces 216, and the two first surfaces 216 are arranged opposite to each other along the first direction.
  • the battery cell 21 includes two electrode terminals 214 with opposite polarities, and the two electrode terminals 214 with opposite polarities are both arranged on the same first surface 216, or one of the two electrode terminals 214 with opposite polarities is arranged on one first surface 216, and the other of the two electrode terminals 214 with opposite polarities is arranged on the other first surface 216.
  • the second surface 217 is connected to the box body 30 of the battery cell 21, and the second surface 217 is the surface with the largest area, thereby increasing the contact area between the second surface 217 and the box body 30, thereby improving the connection strength and stability between the battery cell 21 and the box body 30.
  • first surface 216 and the second surface 217 are arranged to intersect, and the electrode terminal 214 is arranged on the first surface 216, so that there is no electrode terminal 214 on the surface connected to the box body 30, so that the electrode terminal 214 can be fully exposed after the box body 30 is opened, thereby improving the convenience of repairing and inspecting the battery 10.
  • the two first surfaces 216 are arranged opposite to each other in the first direction and intersect with the second surface 217 respectively.
  • the two electrode terminals 214 with opposite polarities can be arranged on one first surface 216 at the same time, or can be arranged on two first surfaces 216 respectively.
  • the convenience of arranging the electrode terminals 214 is further improved, and the diversity requirements of the battery 10 are further met.
  • the first surface 216 is the surface with the largest area of the battery cell 21 .
  • the first surface 216 is a part of the surface constituting the battery cell 21, wherein the battery cell 21 has multiple surfaces, the first surface 216 has the largest area, and the electrode terminal 214 is arranged on the first surface 216.
  • the electrode terminal 214 of one battery cell 21 is arranged corresponding to the recessed portion of the other battery cell 21.
  • the concave-convex matching structure makes the combined structure formed by the two adjacent battery cells 21 more compact, thereby improving the space utilization of the box body 30 and effectively improving the energy density of the battery 10.
  • the battery cell 21 includes a first surface 216 and a fourth surface arranged opposite to the first surface 216, and the first surface 216 and the fourth surface are arranged opposite to each other along a first direction; a recess is provided at an edge of the fourth surface; the first surface 216 is used to set the electrode terminal 214; the electrode terminal 214 is protruded from the first surface 216 in the second direction and corresponds to the recess.
  • the first surface 216 is the surface with the largest area, and the fourth surface is provided and is arranged relative to the first surface 216 along the first direction.
  • the first surface 216 and the fourth surface are arranged opposite to each other in the first direction, it is convenient to effectively arrange the electrode terminals 214 to meet the electrical lead-out requirements of different batteries 10 , thereby ensuring effective power supply of the battery 10 .
  • the battery cell 21 includes a first surface 216 and a fourth surface arranged opposite to the first surface 216, the first surface 216 and the fourth surface are arranged opposite to each other along the second direction, and the second direction, the first direction and the third direction intersect each other; a recess is provided on the edge of the fourth surface; the first surface 216 is used to set the electrode terminal 214; the electrode terminal 214 is protruded from the first surface 216 in the second direction and corresponds to the recess.
  • both of the two first surfaces 216 are surfaces with the largest areas, and the two first surfaces 216 are arranged relatively to each other along the second direction.
  • the two first surfaces 216 are arranged opposite to each other in the second direction, it is convenient to effectively arrange the electrode terminals 214 to meet the electrical lead-out requirements of different batteries 10 , thereby ensuring effective power supply of the battery 10 .
  • the battery 10 further includes a heat conductor 40 , which is disposed along the first direction, and the heat conductor 40 is thermally connected to at least the largest surface of the battery cell 21 .
  • the battery 10 further includes a heat conductive member 40, which is disposed in the box 30 of the battery 10, and the heat conductive member 40 is disposed along the first direction.
  • the largest surface of the battery cell 21 is thermally connected to the heat conductive member 40, so that the contact area between the battery cell 21 and the heat conductive member 40 is increased, thereby increasing the heat exchange efficiency between the battery cell 21 and the heat conductive member 40, and reducing the safety hazard caused by poor heat dissipation of the battery 10.
  • the first direction is the direction in which the electrical device moves
  • the second direction and the first direction are both in the same plane
  • the second direction is perpendicular to the first direction.
  • the battery 10 includes at least two battery assemblies 20; along the second direction, two sides of the heat conductive member 40 are thermally connected to the two battery assemblies 20 respectively, and the second direction, the first direction and the third direction intersect each other.
  • the heat conductive member 40 is disposed between the two battery assemblies 20 and is thermally connected to the two battery assemblies 20.
  • the second direction is the width direction of the battery 10 or the lateral direction of the running direction of the electric device.
  • the battery assemblies 20 disposed in the box body 30 are all thermally connected to the heat conducting member 40, which further ensures sufficient heat dissipation of the battery assemblies 20, so that the potential safety hazard of the battery 10 caused by poor heat dissipation is further reduced.
  • the battery 10 includes a plurality of heat conducting members 40 , and the plurality of heat conducting members 40 are arranged along the second direction, and the second direction, the first direction, and the third direction intersect with each other.
  • a plurality of heat conducting members 40 are provided to further increase the heat exchange capacity of the battery cells 21 , so that the battery 10 can be maintained within a relatively safe temperature range, further reducing the potential safety hazard caused by poor heat dissipation.
  • heat conducting members 40 are respectively provided on both sides of the battery assembly 20; the battery assembly 20 is thermally connected to the heat conducting members 40 on both sides.
  • both sides of the battery assembly 20 are thermally connected to the heat conductive member 40, respectively, further increasing the heat dissipation capacity of the battery assembly 20, so that the temperature of the battery 10 can be maintained within a relatively safe temperature range, further reducing the safety hazards caused by poor heat dissipation.
  • the battery cell 21 includes two opposite third surfaces 218 , the third surface 218 is the surface with the largest area of the battery cell 21 , and the two third surfaces 218 of the battery cell 21 are thermally connected to a heat conductive member 40 respectively.
  • two third surfaces 218 with the largest areas are provided, and the two third surfaces 218 are respectively thermally connected to a heat conductive member 40, thereby further increasing the heat exchange efficiency between the battery cell 21 and the heat conductive member 40, thereby improving the heat dissipation performance of the battery cell 21, and further reducing the safety hazard of the battery 10 caused by excessive temperature.
  • the heat conducting member 40 may be an electronic cooling sheet, such as a PTC.
  • the battery cell 21 includes an electrode assembly 213, the electrode assembly 213 includes a main body 2131 and a pole ear 2132 protruding from the main body 2131, and the pole ear 2132 is electrically connected to the electrode terminal 214; along the second direction, the projections of the heat conductor 40 and the main body 2131 at least partially overlap and have an overlapping area, and the first direction, the second direction and the third direction intersect each other.
  • the heat generated is mainly concentrated on the main body 2131 of the electrode assembly 213.
  • An overlapping area is set between the heat conductor 40 and the main body 2131, so that the main body 2131 can effectively dissipate heat with the heat conductor 40, thereby improving the heat exchange performance of the heat conductor 40 to the main body 2131, allowing the battery cell 21 to be maintained below a safe temperature, thereby improving safety of use.
  • the size of the main body 2131 is L1
  • the size of the heat conducting member 40 is L2, wherein 0.5 ⁇ L2/L1 ⁇ 1.5.
  • setting the L2/L1 range value within the interval [0.5, 1.5] can reduce the space occupied by the heat conducting member 40 in the third direction, so that the space utilization rate of the battery 10 is further improved.
  • L2/L1 can be 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, ..., 1.5.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the heat exchange area between the heat conductor 40 and the main body 2131 can be reasonably set, which can greatly enhance the heat exchange effect of the heat conductor 40 on the main body 2131.
  • L3/L1 can be 0.5, 0.6, 0.7, 0.8, 0.9, ..., 1.
  • a channel for accommodating a heat exchange medium is provided in the heat conducting member 40 .
  • the heat conducting member 40 is connected to a medium circulation device, and a heat exchange medium (such as water or oil, etc.) is injected into the channel, and the heat exchange medium can circulate in the channel.
  • a heat exchange medium such as water or oil, etc.
  • the battery cell 21 transfers heat with the heat exchange medium in the channel through the heat conducting member 40.
  • the heat exchange medium flows in the channel and takes out the heat exchanged with the battery cell 21.
  • the battery 10 further includes a current collector 50, which is in fluid communication with the heat conductor 40.
  • the current collector 50 is disposed at one end of the heat conductor 40 in the first direction, or at both ends of the heat conductor 40 in the first direction.
  • the current collector 50 is disposed at one or both ends of the heat conducting member 40 in the first direction.
  • the current collector 50 can collect the heat exchange medium in the heat conducting member 40, reduce the number of components, and thus improve the space utilization rate in the box body 30.
  • the setting position of the current collector 50 can avoid squeezing or impact, reducing the possibility of damage to the current collector 50, so that the heat exchange medium can fully dissipate the heat of the battery cell 21, further reducing the safety hazard of the battery 10 caused by excessive temperature.
  • the two current collecting members 50 are arranged at one end of the heat conducting member 40 in the first direction.
  • the two current collecting members 50 are arranged along a third direction, and the third direction is the height direction of the battery cell 21.
  • the first direction, the second direction and the third direction intersect each other.
  • two current collecting members 50 are provided, thereby improving the current collecting performance of the heat exchange medium, so that the heat exchange medium can have a good flow rate, and further improving the heat exchange capacity of the heat exchange medium to the battery cell 21.
  • the two current collectors 50 are disposed together at one end of the first direction and arranged along the third direction, which can effectively reduce the space occupied by the current collectors 50 in the battery 10 along the first direction, thereby facilitating the arrangement of other structures in the battery 10 .
  • the battery cell 21 further includes a pressure relief mechanism 215 , and the pressure relief mechanism 215 is disposed on any surface of the battery cell 21 .
  • the pressure inside the battery cell 21 can be promptly released through the pressure relief mechanism 215 to avoid safety hazards such as explosion of the battery cell 21 .
  • the pressure relief mechanism 215 may be disposed on the first surface 216 , the second surface 217 , the third surface 218 or other surfaces of the battery cell 21 .
  • the pressure relief mechanism 215 is disposed on the first surface 216 or the second surface 217 .
  • the pressure relief mechanism 215 and the electrode terminal 214 are both arranged on the first surface 216.
  • the pressure relief mechanism 215 By arranging the pressure relief mechanism 215 on the first surface 216, it is convenient to simultaneously install the pressure relief mechanism 215 and the electrode terminal 214, thereby improving the convenience of assembly and improving the production efficiency.
  • the second surface 217 is connected to the box body 30 , so that the box body 30 is used to protect the outer side of the pressure relief mechanism 215 , thereby reducing the possibility of the pressure relief mechanism 215 being impacted.
  • the setting position of the pressure relief mechanism 215 can meet the requirements of different types of battery cells 21, further improving the safety performance of the battery 10.
  • the battery assembly 20 includes at least two battery cells 21 , and the at least two battery cells 21 are arranged along a first direction.
  • At least two battery cells 21 are arranged in a row along the first direction, which facilitates the layout of the battery cells 21 inside the box body 30 .
  • the large surface (surface with the largest area) of the battery cell 21 can be arranged along the first direction and intersecting the horizontal plane, or can be arranged along the second direction and intersecting the horizontal plane.
  • the battery cell 21 includes an electrode assembly 213; the electrode assembly 213 is a wound structure and is flat, and the outer surface of the electrode assembly 213 includes two flat surfaces, and the two flat surfaces face each other along the second direction, or the electrode assembly 213 is a laminated structure, and the first electrode sheet, the diaphragm, and the second electrode sheet of the electrode assembly 213 are stacked along the second direction.
  • the second direction, the first direction, and the third direction intersect each other.
  • the electrode assembly 213 is a component in the battery cell 21 where an electrochemical reaction occurs.
  • One or more electrode assemblies 213 may be included inside the battery cell 21.
  • the electrode assembly 213 is mainly formed by winding or stacking pole sheets (positive pole sheets and negative pole sheets), and a separator is usually provided between the positive pole sheet (first pole sheet) and the negative pole sheet (second pole sheet).
  • the portion of the pole sheet (first pole sheet and second pole sheet) having active materials constitutes the main body 2131 of the electrode assembly 213, and the portion of the first pole sheet and the second pole sheet without active materials each constitutes a pole ear 2132.
  • 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 2131.
  • the electrode assembly 213 by configuring the electrode assembly 213 to be a wound structure and flat, and the outer surface of the electrode assembly 213 includes two flat surfaces, the two flat surfaces face each other along the second direction, or configuring the electrode assembly 213 to be a stacked structure, the space occupied by the electrode assembly 213 in the first direction is reduced, so as to facilitate the layout and installation of other components of the battery 10 in the first direction.
  • the maximum dimension of the battery cell 21 is L
  • the maximum dimension of the battery cell 21 is D
  • the second direction, the first direction and the third direction intersect each other, wherein the L/D range value is 1 to 30.
  • the maximum dimension of the battery cell 21 along the first direction is L
  • the maximum dimension of the battery cell 21 along the second direction is D.
  • L/D can be 1, 2, 3, 4, 5, 6, 7, 8, ... 30.
  • the battery cell 21 can have different shapes, thereby meeting the requirements of different types of batteries 10.
  • the maximum dimension of the battery cell 21 is L
  • the maximum dimension of the battery cell 21 is H
  • the L/H range is 0.5 to 6; the first direction, the second direction and the third direction intersect each other.
  • the maximum dimension of the battery cell 21 along the first direction is L
  • the maximum dimension of the battery cell 21 along the third direction is H.
  • the battery cell 21 is arranged according to the above-mentioned size ratio, which can maximize the power of the battery cell 21 .
  • L/H can be 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, ... 6.
  • the battery cell 21 can have different shapes, thereby meeting the requirements of different models of batteries 10.
  • the box body 30 includes a first part 31 and a second part 32, the first part 31 and the second part 32 are connected in a detachable manner, the number of the second surface 217 is at least one, and at least one second surface 217 is bonded to the first part 31 or the second part 32.
  • the bonding and fixing has high connection strength, which can effectively ensure the stability of the battery cell 21 in the box body 30 .
  • the second surface 217 of the battery cell 21 and the first portion 31 or the second portion 32 of the box body 30 may be connected and fixed by means of a snap connection.
  • a snap slot is provided at a position of the first portion 31 or the second portion 32 corresponding to the battery cell 21, and the battery cell 21 can be connected and fixed to the first portion 31 or the second portion 32 by snapping the battery cell 21 into the snap slot.
  • the two second surfaces 217 are arranged opposite to each other in the third direction.
  • the connection strength between the battery cell 21 and the box body 30 is further improved, so that the stability of the battery cell 21 in the box body 30 is further improved.
  • the second surface 217 is fixedly connected to the first part 31 and/or the second part 32 through the first adhesive layer 60
  • the battery 10 also includes a heat conductor 40, which is thermally connected to the largest surface of the battery cell 21 through the second adhesive layer 70, and the thermal conductivity of the first adhesive layer 60 is less than or equal to the thermal conductivity of the second adhesive layer 70.
  • the thermal conductivity of the first adhesive layer 60 is set to be less than or equal to the thermal conductivity of the second adhesive layer 70 to ensure more effective heat dissipation of the battery cell 21 through the thermal conductive member 40.
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is in the range of 0.1-1.
  • the above ratio ranges can effectively dissipate heat from the battery cells 21 through the heat conducting member 40 .
  • the ratio of the thermal conductivity of the first adhesive layer to the thermal conductivity of the second adhesive layer may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, ..., 1.
  • the first adhesive layer 60 and the second adhesive layer 70 can be the same adhesive, but the thermal conductivity of the two is different, that is, the thermal conductivity of the first adhesive layer 60 is smaller than the thermal conductivity of the second adhesive layer 70.
  • the first adhesive layer 60 and the second adhesive layer 70 can respectively use thermally conductive polyurethane adhesive layers, and add different amounts of thermally conductive particles therein to achieve different thermal conductivities.
  • first adhesive layer 60 and the second adhesive layer 70 may be two different adhesives.
  • first adhesive layer 60 may be structural adhesive, foaming filling adhesive, pressure-sensitive adhesive or potting adhesive
  • second adhesive layer 70 may be thermal conductive adhesive.
  • the battery 10 further includes a baffle 321 , which is disposed along a third direction opposite to the first surface 216 of the battery cell 21 having the electrode terminal 214 , and the interval between the electrode terminal 214 and the baffle 321 is 1.2 mm to 25 mm.
  • the baffle 321 is arranged inside the box body 30 and corresponds to the motor terminal of the battery cell 21.
  • the baffle 321 and the electrode terminal 214 are spaced 1.2 mm to 25 mm apart, which can prevent the baffle 321 from colliding with the electrode terminal 214 when the battery 10 collides along the second direction, thereby causing damage to the electrode terminal 214.
  • the distance between the baffle 321 and the electrode terminal 214 can be 1.2 mm, 3 mm, 4.5 mm, 6 mm, 8.5 mm, 1 mm, ..., 25 mm.
  • the second aspect of the present application proposes an electric device, comprising the battery 10 as described above, wherein the battery 10 is used to provide electric energy to drive the electric device to move.
  • the first direction is the moving direction of the electric device.
  • the first direction is set as the walking direction of the electrical equipment, and the third direction intersects with the first direction and the horizontal direction respectively.
  • the battery cell 21 located inside the box 30 of the battery 10 has a first surface 216 and a second surface 217.
  • the electrode terminal 214 is set on the first surface 216, and the second surface 217 is connected to the box 30.
  • the setting of the first direction facilitates the installation and layout of the battery 10 on the electrical equipment, and by adjusting the arrangement of the battery cells 21 inside the box 30, the use requirements of different electrical equipment can be met.
  • the present application proposes a battery 10, which includes a box body 30 and a battery assembly 20 disposed in the box body 30, the number of electrode assemblies 213 is at least one, each electrode assembly 213 includes at least one battery cell 21, wherein the battery cell 21 includes a first surface 216 and a second surface 217, the first surface 216 is provided with an electrode terminal 214, and the second surface 217 is connected to the box body 30.
  • the battery assembly 20 is arranged along a first direction (the first direction is the length direction of the battery 10 or the walking direction of the electric device having the battery 10), and the second surface 217 intersects with a third direction (the height direction of the battery 10), wherein the first surface 216 can be arranged along the first direction and intersect with a horizontal plane, can also be arranged along the second direction (the width direction of the battery 10) and intersect with a horizontal plane, and can also be arranged opposite to the second surface 217 in the third direction, and the first direction, the second direction and the third direction intersect with each other.
  • the electrical device is a vehicle. Driven by the battery 10, the vehicle can move.
  • the battery assembly 20 constituting the battery 10 is arranged along a first direction, which can be the moving direction of the vehicle, that is, the battery assembly 20 is arranged along the moving direction of the vehicle 1.
  • the battery 10 is a rectangular structure, and the rectangular battery 10 has a length direction, a width direction, and a height direction.
  • the battery assembly 20 located in the box 30 is arranged along the first direction, which can also be the length direction of the battery 10.
  • the battery cell 21 has a first surface 216 and a second surface 217, and the second surface 217 is configured to intersect with a third direction (the third direction intersects with the first direction and the horizontal direction respectively), wherein the first surface 216 is provided with an electrode terminal 214, and the second surface 217 is connected to the case 30, so that there is no electrode terminal 214 on the connecting surface between the battery cell 21 and the case 30, so that the electrode terminal 214 can be fully exposed to the outside after the case 30 is opened, so that after the case 30 is opened, the battery 10 can be repaired and inspected without separating the battery cell 21 and the case 30, thereby improving the convenience of repairing and inspecting the battery 10.
  • both of them can be the surface with the largest area, or neither of them can be the surface with the largest area; when the first surface 216 and the second surface 217 are arranged to intersect, any one of the first surface 216 and the second surface 217 can be the surface with the largest area; when the first surface 216 and the second surface 217 are not the surfaces with the largest area, the battery cell 21 also has a third surface 218 with the largest area, and when the first surface 216 and the second surface 217 are arranged relative to each other in the third direction, the third surface 218 can be arranged between the first surface 216 and the second surface 217; when the first surface 216, the second surface 217 and the third surface 218 intersect each other, the first surface 216 and the third surface 218 constitute the outer peripheral surface of the battery cell 21.
  • the box body 30 includes a first portion 31 and a second portion 32, wherein the second portion 32 may be a hollow structure with one end open, and the first portion 31 may be a plate-like structure, and the first portion 31 covers the open side of the second portion 32, so that the first portion 31 and the second portion 32 together define a space for accommodating the battery cell 21.
  • the second surface 217 may be bonded and fixed to the first portion 31 or the second portion 32 through the first bonding layer 60.
  • the maximum size of the battery cell 21 along the first direction is L
  • the maximum size of the battery cell 21 along the second direction is D
  • L/D ranges from 1 to 30
  • the maximum size of the battery cell 21 along the third direction is H
  • L/H ranges from 0.5 to 6.
  • a pressure relief mechanism 215 is provided on the battery cell 21 , and the pressure relief mechanism 215 can be provided on any one of the first surface 216 , the second surface 217 and the third surface 218 .
  • the pressure relief mechanism 215 and the electrode terminal 214 are both provided on the first surface 216 .
  • the battery 10 further includes a heat conductive member 40, which is disposed in the box 30 of the battery 10 and is disposed along a first direction.
  • the heat conductive member 40 is thermally connected to the battery cell 21, wherein the surface of the battery cell 21 thermally connected to the heat conductive member 40 may be the surface with the largest area of the battery cell 21.
  • the heat conductive member 40 is provided with a channel for accommodating a heat exchange medium, and the heat exchange medium flows in the channel, and heat is transferred between the heat conductive member 40 and the battery cell 21 through the channel.
  • the heat conducting member 40 and the battery cell 21 are bonded and fixed by the second adhesive layer 70 .
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is in the range of 0.1-1.
  • the projections of the heat conducting member 40 and the main body 2131 at least partially overlap and have an overlapping area.
  • the size of the main body 2131 is L1
  • the size of the heat conducting member 40 is L2, wherein 0.5 ⁇ L2/L1 ⁇ 1.5.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the battery 10 further includes a current collecting member 50 , which is disposed at an end of the heat conducting member 40 in the first direction and communicates with the heat exchange medium channel of the heat conducting member 40 .
  • a baffle 321 is further provided in the box body 30 .
  • the baffle 321 is provided corresponding to the electrode terminal 214 of the battery cell 21 , and the interval between the electrode terminal 214 and the baffle 321 is 1.2 mm to 25 mm.

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Abstract

本申请属于电池技术领域，具体公开了一种电池及用电设备，该电池包括箱体和电池组件，电池组件容纳在箱体内，电池组件包括至少一个电池单体，电池组件沿第一方向设置，第一方向为电池的长度方向或具有电池的用电设备的行走方向，电池单体具有第一表面和第二表面，第一表面设有电极端子，第二表面与箱体相连，第二表面与第三方向相交，第三方向与第一方向和水平面均相交。根据本申请的电池，电池单体具有第一表面和第二表面，第二表面设置成与第三方向相交，其中，第一表面设置电极端子，第二表面与箱体相连，使得电池单体与箱体的连接面上不具有电极端子，以便于箱体打开后电极端子能够充分暴露在外，提高了对电池维修以及检测的便捷性。

Description

电池及用电设备 技术领域
本申请涉及电池技术领域，尤其涉及一种电池及用电设备。
背景技术
随着新能源的发展，越来越多的领域采用新能源作为动力。由于具有能量密度高、可循环充电、安全环保等优点，动力电池被广泛应用于新能源汽车、消费电子、储能系统等领域中。
动力电池通常包括箱体和电池单体，电池单体设于箱体内，并通过上下粘胶的方式与箱体固定，对于上下出电极端子的电池单体而言，粘胶固定的方式不便于电池的维修及检测。
发明内容
鉴于上述问题，本申请提供一种电池及用电设备，解决了现有电池维修检测不便的问题。
本申请的第一方面提出了一种电池，所述电池包括：
箱体；
电池组件，容纳于所述箱体，所述电池组件包括至少一个电池单体，所述电池组件沿第一方向设置，所述第一方向为所述电池的长度方向或具有所述电池的用电设备的行走方向，所述电池单体具有第一表面和第二表面，所述第一表面设有电极端子，所述第二表面与所述箱体相连，所述第二表面与第三方向相交，所述第三方向与所述第一方向和水平面均相交。
根据本申请的电池，电池单体具有第一表面和第二表面，第二表面设置成与第三方向相交(第三方向分别与第一方向和水平方向均相交)，其中，第一表面设置电极端子，第二表面与箱体相连，使得电池单体与箱体的连接面上不具有电极端子，以便于箱体打开后电极端子能够充分暴露在外，以便于箱体打开后，在不分离电池单体与箱体的情况下对电池进行维修及检测，提高了对电池维修以及检测的便捷性。
在本申请的一些实施例中，所述电池的长度方向与所述用电设备的行走方向平行或者相交。通过将电池的长度方向与用电设备的行走方向设置成平行或者相交，从而提高了电池在用电设备中布置的便捷性。
在本申请的一些实施例中，沿所述第三方向，所述第一表面和所述第二表面相对设置，所述电池单体还具有第三表面，所述第三表面为所述电池单体的面积最大的面，所述第三表面沿所述第三方向设置并与所述水平面相交，所述第三表面连接于所述第一表面和所述第二表面。本实施例中，将第一表面和第二表面设置成在第三方向上相对设置，在对电池进行维修或检测时，打开箱体，电池单体的第二表面与电池的箱体相连，能够使得第一表面上的电极端子暴露在外侧，以便于箱体打开后，在不分离电池单体与箱体的情况下对电池进行维修及检测，进一步提高了对电池维修以及检测的便捷性。另外，第三表面为面积最大的面，第二表面的面积小于第三表面，可以使得箱体单位面积内连接更多数量的电池单体，从而可以提高电池能量密度。
在本申请的一些实施例中，所述第三表面的数量为两个，两个所述第三表面沿所述第一方向相对设置，所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子均设在所述第一表面上。本实施例中，电池单体设置两个第三表面，两个第三表面均为面积最大的面，第一表面和第二表面在第三方向上相对设置，两个第三表面在第一方向相对设置，进一步提高了电池单体在电池内布置的便捷性，以满足不同电池的安装需求。
在本申请的一些实施例中，所述第三表面的数量为两个，两个所述第三表面沿所述第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交，所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子均设在所述第一表面上。本实施例中，电池单体设置两个第三表面，两个第三表面均为面积最大的面，第一表面和第二表面在第三方向上相对设置，两个第三表面在第二方向相对设置，进一步提高了电池单体在电池内布置的便捷性，以满足不同电池的安装需求。
在本申请的一些实施例中，所述第三表面的数量为一个，所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子中的一个设于所述第一表面上，所述电池单体的壳体构成所述极性相反的两个电极端子中的另一个。本实施例中，电池单体设置一个第三表面，一个第三表面均为面积最大的面，第一表面和第二表面在第三方向上相对设置，进一步提高了电池单体在电池内布置的便捷性，以满足不同电池的安装需求。
在本申请的一些实施例中，所述电池单体还具有第三表面，所述第三表面为所述电池单体的面积最大的面，所述第三表面沿所述第三方向设置并与所述水平面相交，所述第一表面、所述第二表面和所述第三表面两两相交。本实施例中，通过将第一表面、第二表面和第三表面设置成两两相交，第二表面与箱体相连，电极端子设于第一表面上，以便于箱体打开后，在不分离电池单体与箱体的情况下对电池进行维修及检测。
在本申请的一些实施例中，所述第一表面的数量为两个，两个所述第一表面沿所述第一方向相对设置，所述电池单体包括极性相反的两个电极端子；
其中，所述极性相反的两个电极端子均设在一个所述第一表面上，或者所述极性相反的两个电极端子分别设在两个所述第一表面上。
本实施例中，设置两个第一表面，并且两个第一表面在第一方向上相对设置，极性相反的两个电极端子可同时设置在一个第一表面上，也可以分别设置在两个第一表面上，在满足电池维修及检测具有良好便捷性的基础上，提高了电极端子布置的便捷性，满足了电池多样性的需求。
在本申请的一些实施例中，所述第一表面的数量为两个，两个所述第一表面沿所述第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交，所述电池单体包括极性相反的两个电极端子；
其中，所述极性相反的两个电极端子均设在一个所述第一表面上，或者所述极性相反的两个电极端子分别设在两个所述第一表面上。
本实施例中，设置两个第一表面，并且两个第一表面在第二方向上相对设置，极性相反的两个电极端子可同时设置在一个第一表面上，也可以分别设置在两个第一表面上，在满足电池维修及检测具有良好便捷性的基础上，进一步提高了电极端子布置的便捷性，进一步满足了电池多样性的需求。
在本申请的一些实施例中，所述第二表面为所述电池单体的面积最大的面，所述第一表面的面积小于所述第二表面的面积，所述第一表面沿所述第一方向设置且与所述第二表面相交；所述电池单体包括两个所述第一表面，沿所述第二方向，两个所述第一表面相对设置，所述第二方向、所述第一方向和所述第三方向两两相交；
所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子均设在同一个所述第一表面上，或者所述极性相反的两个电极端子分别设在两个所述第一表面上。
本实施例中，第二表面为面积最大的面，并且两个第一表面分别与第二表面相交，极性相反的两个电极端子可同时设置在一个第一表面上，也可以分别设置在两个第一表面上，在满足电池维修及检测具有良好便捷性的基础上，进一步提高了电极端子布置的便捷性，进一步满足了电池多样性的需求。
在本申请的一些实施例中，所述第二表面为所述电池单体的面积最大的面，所述第一表面的面积小于所述第二表面的面积，所述第一表面沿所述第二方向设置且与所述第二表面相交，所述第二方向、所述第一方向和所述第三方向两两相交；所述电池单体包括两个所述第一表面，沿所述第一方向，两个所述第一表面相对设置；
所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子均设在同一个所述第一表面上，或者所述极性相反的两个电极端子分别设在两个所述第一表面上。
本实施例中，第二表面为面积最大的面，并且两个第一表面分别与第二表面相交，极性相反的两个电极端子可同时设置在一个第一表面上，也可以分别设置在两个第一表面上，在满足电池维修及检测具有良好便捷性的基础上，进一步提高了电极端子布置的便捷性，进一步满足了电池多样性的需求。
在本申请的一些实施例中，所述第一表面为所述电池单体的面积最大的面。本实施例中，第一表面为面积最大的面，电极端子设置在第一表面上，当对电池进行维修及检测时，能够为维修及检测提供足够的操作空间，进一步提高了对电池维修及检测的便捷性。
在本申请的一些实施例中，所述电池单体包括所述第一表面和与所述第一表面相对设置的第四表面，所述第一表面和所述第四表面沿第一方向相对设置；所述第四表面的边缘设有凹部；所述第一表面用于设置所述电极端子；所述电极端子在所述第二方向上凸出设置于所述第一表面，并且与所述凹部对应。
本实施例中，第一表面均为面积最大的面，设置第四表面并且第四表面与第一表面在在第一方向上相对设置，当对电池进行维修及检测时，在满足为维修及检测提供足够的操作空间的基础上，满足了电池多样性的需求。
在本申请的一些实施例中，所述电池单体包括所述第一表面和与所述第一表面相对设置的第四表面，所述第一表面和所述第四表面沿第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交；所述第四表面的边缘设有凹部；所述第一表面用于设置所述电极端子；所述电极端子在所述第二方向上凸出设置于所述第一表面，并且与所述凹部对应。
本实施例中，第一表面均为面积最大的面，设置第四表面并且第四表面与第一表面在在第二方向上相对设置，当对电池进行维修及检测时，在满足为维修及检测提供足够的操作空间的基础上，进一步满足了电池多样性的需求。
在本申请的一些实施例中，所述电池还包括导热件，所述导热件沿所述第一方向设置，所述导热件至少与所述电池单体的面积最大的面导热连接。本实施例中，通过将导热件与电池单体的面积最大的面导热连接，从而增加了电池单体与导热件之间的换热效率，降低了电池因散热不佳导致的安全隐患。
在本申请的一些实施例中，所述电池包括至少两个电池组件；沿第二方向，所述导热件的两侧分别与两个所述电池组件导热连接，所述第二方向、所述第一方向和所述第三方向两两相交。本实施例中，设于箱体内的电池组件均与导热件导热连接，进一步保证了电池组件的充分散热，使得电池因散热不佳导致的安全隐患得到了进一步地降低。
在本申请的一些实施例中，所述电池包括多个所述导热件，多个所述导热件沿第二方向排列，所述第二方向、所述第一方向和所述第三方向两两相交。本实施例中，设置多个导热件，进一步增加了对电池单体的热交换能力，使得电池能够维持在相对安全的温度区间内，进一步降低了因散热不佳导致的安全隐患。
在本申请的一些实施例中，沿所述第二方向，所述电池组件的两侧分别设有所述导热件；所述电池组件与两侧的所述导热件导热连接。本实施例中，电池组件的两侧分别与导热件导热连接，进一步增加了对电池组件的散热能力，使得电池的温度能够维持在相对安全的温度区间内，进一步降低了因散热不佳导致的安全隐患。
在本申请的一些实施例中，沿所述第二方向，所述电池单体包括两个相对的第三表面，所述第三表面为所述电池单体面积最大的面，所述电池单体的两个所述第三表面分别与一个所述导热件导热连接。本实施例中，设置两个面积最大的第三表面，两个第三表面分别导热连接一个导热件，进一步增加了电池单体与导热件之间的换热效率，从而提高了电池单体的散热性能，进一步降低了电池因温度过高导致的安全隐患。
在本申请的一些实施例中，所述电池单体包括电极组件，所述电极组件包括主体部和凸出于所述主体部的极耳，所述极耳与所述电极端子电连接；沿第二方向，所述导热件和所述主体部的投影至少部分重合，所述第一方向、所述第二方向和所述第三方向两两相交。本实施例中，通过将导热件和主体部沿第二方向至少部分重合设置且具有重合区域，能够通过导热件有效地对主体部进行换热，从而提高了对电池单体的换热效果。
在本申请的一些实施例中，沿所述第三方向，所述主体部的尺寸为L1，所述导热件的尺寸为L2，其中，0.5≤L2/L1≤1.5。
本实施例中，将L2/L1范围值设定在区间[0.5，1.5]内，能够减少导热件在第三方向上所占用的空间，使得电池的空间利用率得到了进一步提升。
在本申请的一些实施例中，沿所述第三方向，所述重合区域的尺寸为L3，0.5≤L3/L1≤1。
本实施例中，通过对重合区域在第三方向尺寸的设定，从而能够使得导热件与主体部之间的换热面积能够合理设定，能够极大地增强导热件对主体部的换热效果。
在本申请的一些实施例中，所述导热件内设有容纳换热介质的通道。本实施例中，电池单体通过导热件与通道内的换热介质进行热传递，换热介质可在通道内流动，该种换热方式的换热效率高且结构简单。
在本申请的一些实施例中，所述电池还包括集流件，所述集流件与所述导热件流体连通；
其中，所述导热件位于所述第一方向的一端设有所述集流件，或，所述导热件位于所述第一方向的两端分别设有所述集流件。
本实施例中，设置集流件，能够实现对导热件内的换热介质进行汇集，减少了部件的数量，从而提高了箱体内的空间利用率。另外，当电池受到第二方向上挤压或撞击时，集流件的设置位置能够避让开挤压或撞击，减少集流件被损坏的可能性，以使换热介质能够充分对电池单体进行散热，进一步降低了电池因温度过高导致的安全隐患。
在本申请的一些实施例中，所述集流件为两个，两个所述集流件设于所述导热件的位于所述第一方向的一端，两个所述集流件沿第三方向排布。本实施例中，设置两个集流件，从而提高了对换热介质的集流性能，使得换热介质能够具有良好的流速，进一步提高了换热介质对电池单体的换热能力。另外，将两个集流件共同设于第一方向的一端，且沿第三方向排布，可有效地减小集流件沿第一方向在电池内的占用空间，从而便于在电池内设置其他结构。
在本申请的一些实施例中，所述电池单体还包括泄压机构，所述泄压机构设置在所述电池单体的任一表面上。本实施例中，当电池单体发生热失控时，可通过泄压机构及时释放电池单体内部的压力，以避免电池单体发生爆炸等安全隐患。
在本申请的一些实施例中，所述泄压机构设在所述第一表面或所述第二表面上。本实施例中，泄压机构的设置位置能够满足不同电池单体类型的需求，进一步提高了电池的安全性能。
在本申请的一些实施例中，所述电池组件包括至少两个电池单体，所述至少两个电池单体沿所述第一方向排列。本实施例中，至少两个电池单体沿第一方向排列设置，便于电池单体在箱体内部的布局。
在本申请的一些实施例中，所述电池单体包括电极组件；所述电极组件为卷绕式结构且为扁平状，所述电极组件的外表面包括两个扁平面，两个所述扁平面沿第二方向相互面对；
或，所述电极组件为叠片式结构，所述电极组件的第一极片、隔膜和第二极片沿第二方向层叠；
所述第二方向、所述第一方向和所述第三方向两两相交。
本实施例中，通过将电极组件设置成卷绕式结构且为扁平状，以及电极组件的外表面包括两个扁平面，两个所述扁平面沿第二方向相互面对，或者将电极组件为叠片式结构，从而减少了电极组件在第一方向上所占用的空间，以便于电池在第一方向上进行其他部件的布局和安装。
在本申请的一些实施例中，沿所述第一方向，所述电池单体的最大尺寸为L，沿所述第二方向，所述电池单体的最大尺寸为D，所述第二方向、所述第一方向和所述第三方向两两相交，其中，L/D范围值为1～30。本实施例中，通过对电池单体在第一方向和第二方向上尺寸进行设定，能够最大限度地提升电池单体的电量。
在本申请的一些实施例中，沿所述第一方向，所述电池单体的最大尺寸为L，沿所述第三方向，所述电池单体的最大尺寸为H，L/H范围值为0.5～6。本实施例中，电池单体的按照上述尺寸比例设置，能够最大限度地提升电池单体的电量。
在本申请的一些实施例中，所述箱体包括第一部分和第二部分，所述第一部分与所述第二部分以可拆卸的方式连接，所述第二表面的数量为至少一个，至少一个所述第二表面与所述第一部分或所述第二部分粘接。本实施例中，通过将第二表面设置成与箱体的第一部分或第二部分粘接固定，从而提高了装配过程中的便捷性。另外，粘接固定的连接强度高，能够有效保证了电池单体在箱体内的稳定性。
在本申请的一些实施例中，所述第二表面的数量为两个，两个所述第二表面相对设置，所述第一部分与一个所述第二表面粘接，所述第二部分与另一个所述第二表面粘接。本实施例中，通过将第二表面设置成两个，并且两个第二表面分别与箱体的第一部分和第二部分粘接固定，进一步提高了电池单体与箱体之间的连接强度，使得电池单体在箱体内的稳定性得到了进一步地提高。
在本申请的一些实施例中，所述第二表面通过第一粘接层与所述第一部分和/或第二部分固定连接，所述电池还包括导热件，所述导热件通过第二粘接层与所述电池单体的面积最大的面导热连接，所述第一粘接层的导热系数小于或等于所述第二粘接层的导热系数。本实施例中，由于第一粘接层用于连接第二表面和箱体，而第二粘接层用于导热连接电池单体的面积最大的面和导热件，故将第一粘接层的导热系数小于或等于第二粘接层的导热系数设置，以保证更加有效地通过导热件对电池单体进行散热。
在本申请的一些实施例中，所述第一粘接层的导热系数与所述第二粘接层的导热系数的比值范围为0.1～1。本实施例中，上述比值范围的设置，均能够有效地通过导热件对电池单体进行散热。
在本申请的一些实施例中，所述电池还包括挡板，所述挡板沿所述第三方向与所述电池单体设有电极端子的所述第一表面相对设置，所述电极端子与所述挡板的间隔为1.2mm～25mm。本实施例中，将挡板与电极端子间隔1.2mm～25mm设置，能够防止电池沿第二方向发生撞击时，挡板与电极端子相撞击，从而导致电极端子的损坏。
本申请的第二方面提出了一种用电设备，包括如上所述的电池，所述电池用于提供电能驱动所述用电设备行走。
在本申请的一些实施例中，在所述电池的长度方向与所述用电设备的行走方向不同的情况下，所述第一方向为所述用电设备的行走方向。
本实施例中，将第一方向设定为用电设备的行走方向，第三方向分别与第一方向和水平方向均相交，位于电池的箱 体内部的电池单体具有第一表面和第二表面，第一表面设置电极端子，第二表面与箱体相连，第一方向的设定，便于电池在用电设备上的安装和布局，以及通过调整电池单体在箱体内部的排列方式，来满足不同用电设备的使用需求。
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
图1示意性地示出了根据本申请一种实施方式的车辆的结构示意图；
图2示意性地示出了根据本申请一种实施方式的电池的分解结构示意图；
图3示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图4示意性地示出了根据本申请一种实施方式的电池单体的分解结构示意图；
图5示意性地示出了根据本申请一种实施方式的电池的分解结构示意图；
图6示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图7为图6中所示的电池组件中电池单体的结构示意图；
图8示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图9为图8中所示的电池组件中电池单体的结构示意图；
图10示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图11示意性地示出了根据本申请一种实施方式的电池组件的结构示意图
图12为图10以及图11中所示的电池组件中电池单体的结构示意图；
图13示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图14为图13中所示的电池组件中电池单体的结构示意图；
图15示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图16为图15中所示的电池组件中电池单体的结构示意图；
图17示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图18为图17中所示的电池组件中电池单体的结构示意图；
图19示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图20为图19中所示的电池组件中电池单体的结构示意图；
图21示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图22为图21中所示的电池组件中电池单体的结构示意图；
图23示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图24为图23中所示的电池组件中电池单体的结构示意图；
图25示意性地示出了根据本申请一种实施方式的导热件的结构示意图；
图26示意性地示出了根据本申请一种实施方式的箱体的第二部分的结构示意图；
图27示意性地示出了根据本申请一种实施方式的电池的结构示意图(箱体的第一部分未示出)；
图28为图27所示结构中A部放大结构示意图；
图29为图27所示结构中B-B部的剖视图；
图30为图29所示结构中C部放大结构示意图；
图31为图27所示结构的剖开图；
图32为图31所示结构中D部放大结构示意图；
图33是本申请一实施方式提供的车辆上电池的分布结构示意图。
附图标记如下：
1：用电设备；
10：电池、11：控制器、12：马达；
20：电池组件、21：电池单体、211：壳体、212：端盖、213：电极组件、2131：主体部、2132：极耳、214：电极端子、215：泄压机构、216：第一表面、217：第二表面、218：第三表面；
30：箱体、31：第一部分、32：第二部分，321：挡板；
40：导热件；
50：集流件；
60：第一粘接层；
70：第二粘接层。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
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。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“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，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“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)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；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或两个元件的相互作用关系。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实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
本申请人注意到，现有的动力电池通常包括箱体和电池单体，电池单体设于箱体内，并通过上下粘胶的方式与箱体固定，对于上下出电极端子的电池单体而言，粘胶固定的方式不便于电池的维修及检测，因此，如何解决上下出电极端子的电池单体不便于电池的维修及检测的问题成为本领域技术人员亟需解决的技术问题。
为了解决上下出电极端子的电池单体不便于电池的维修及检测的问题，本申请的发明人研究发现，在电池单体上设置第一表面和第二表面，第二表面设置成与第三方向相交(第三方向分别与第一方向和水平方向均相交)，其中，第一表面设置电极端子，第二表面与箱体相连，使得电池单体与箱体的连接面上不具有电极端子，以便于箱体打开后电极端子能够充分暴露在外，提高了对电池维修以及检测的便捷性。
本申请实施例涉及的电池单体可以但不限用于车辆、船舶或飞行器等用电装置中。可以使用具备本申请涉及的电池单体、电池等组成该用电装置的电源系统。
本申请实施例中利用电池作为电源的用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、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。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的电池和用电设备，还可以适用于所有包括箱体的电池以及使用电池的用电设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆1的结构示意图。车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部设置有电池10，电池10可以设置在车辆1的底部或头部或尾部。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源。车辆1还可以包括控制器11和马达12，控制器11用来控制电池10为马达12供电，例如，用于车辆1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10不仅可以作为车辆1的操作电源，还可以作为车辆10的驱动电源，代替或部分地代替燃油或天然气为车辆1提供驱动动力。
为了满足不同的使用电力需求，电池10可以包括多个电池单体，电池单体是指组成电池组件或电池包的最小单元。多个电池单体可经由电极端子而被串联和/或并联在一起以应用于各种应用场合。本申请中所提到的电池10包括电池组件或电池包。其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。电池10也可以称为电池包。本申请的实施例中多个电池单体可以直接组成电池包，也可以先组成电池组件，电池组件再组成电池包。
图2示出了本申请一实施例的电池10的结构示意图。图2中，电池10可以包括多个电池组件20和箱体30，多个电池组件20容纳于箱体30内部。箱体30用于容纳电池单体21或电池组件20，以避免液体或其他异物影响电池单体的充电或放电。箱体30可以是单独的长方体或者圆柱体或球体等简单立体结构，也可以是由长方体或者圆柱体或球体等简单立体结构组合而成的复杂立体结构，本申请实施例对此并不限定。箱体30的材质可以是如铝合金、铁合金等合金材料，也可以是如聚碳酸酯、聚异氰脲酸酯泡沫塑料等高分子材料，或者是如玻璃纤维加环氧树脂的复合材料，本申请实施例对此也并不限定。
在一些实施例中，如图2所示，箱体30可以包括第一部分31和第二部分32，第一部分31与第二部分32相互盖合，第一部分31和第二部分32共同限定出用于容纳电池单体21的空间。第二部分32可以为一端开口的空心结构，第一部分31可以为板状结构，第一部分31盖合于第二部分32的开口侧，以使第一部分31与第二部分32共同限定出容纳电池单体21的空间；第一部分31和第二部分32也可以是均为一侧开口的空心结构，第一部分31的开口侧盖合于第二部分32的开口侧。
图3示出了本申请一实施例的电池组件20的结构示意图。图3中，电池组件20可以包括多个电池单体21，多个电池单体21可以先串联或并联或混联组成电池组件20，多个电池组件20再串联或并联或混联组成电池。本申请中，电池单体21可以包括锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体21可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体21一般按封装的方式分成三种：柱形电池单体、 方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
图4示出了本申请一实施例的电池单体21的结构示意图。电池单体21包括壳体211、端盖212和电极组件213。
端盖212是指盖合于壳体211的开口以将电池单体21的内部环境隔绝于外部环境的部件。不限地，端盖212的形状可以与壳体211的形状相适应以配合壳体211。可选地，端盖212可以由具有一定硬度和强度的材质(如铝合金)制成，这样，端盖212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。端盖212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，在端盖212的内侧还可以设置有绝缘件，绝缘件可以用于隔离壳体211内的电连接部件与端盖212，以降低短路的风险。示例性的，绝缘件可以是塑料、橡胶等。
壳体211是用于配合端盖212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213、电解液以及其他部件。壳体211和端盖212可以是独立的部件，可以于壳体211上设置开口，通过在开口使端盖212盖合开口以形成电池单体21的内部环境。不限地，也可以使端盖212和壳体211一体化，具体地，端盖212和壳体211可以在其他部件入壳前先形成一个共同的连接面，当需要封装壳体211的内部时，再使端盖212盖合壳体211。壳体211可以是多种形状和多种尺寸的，例如长方体形、圆柱体形、六棱柱形等。具体地，壳体211的形状可以根据电芯组件的具体形状和尺寸大小来确定。壳体211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。
在本申请的一些实施例中，如图5至图33所示，本申请提出了一种电池10，该电池10包括箱体30和电池组件20，电池组件20容纳在箱体30内，电池组件20包括至少一个电池单体21，电池组件20沿第一方向设置，第一方向为电池10的长度方向或具有电池10的用电设备的行走方向，电池单体21具有第一表面216和第二表面217，第一表面216设有电极端子214，第二表面217与箱体30相连，第二表面217与第三方向相交，第三方向与第一方向和水平面均相交。
当电池10用于用电设备时，以用电设备为车辆1为例，在电池10的驱动下，车辆1能够行走，构成电池10的电池组件20沿第一方向设置，该第一方向可以为车辆1的行走方向，即电池组件20沿车辆1的行走方向设置。另外，在本申请中，电池10为矩形结构，呈矩形结构的电池10具有长度方向、宽度方向和高度方向，位于箱体30内的电池组件20沿第一方向设置，该第一方向还可以为电池10的长度方向。
如图5所示，图5中，箱体30可以包括第一部分31和第二部分32，第二部分32可以为一端开口的空心结构，第一部分31可以为板状结构，第一部分31盖合于第二部分32的开口侧，以使第一部分31与第二部分32共同限定出容纳电池单体21的空间。当需要对电池10进行维修或检测时，解除第一部分31与第二部分32的配合关系，再将第一部分31和第二部分32分离即可使得电池单体21暴露在外部，从而能够实现对电池10的维修和检测。
在本申请中，电池单体21设置在箱体30的内部，电池单体21的数量可以为一个或数量大于等于两个，如图5所示，图5中电池单体21的数量大于两个，其中，多个电池单体21在第一方向上排列设置。
具体地，电池单体21具有第一表面216和第二表面217，第二表面217设置成与第三方向相交(第三方向分别与第一方向和水平方向均相交)，其中，第一表面216设置电极端子214，第二表面217与箱体30相连，使得电池单体21与箱体30的连接面上不具有电极端子214，以便于箱体30打开后电极端子214能够充分暴露在外，以便于箱体30打开后，在不分离电池单体21与箱体30的情况下对电池10进行维修及检测，提高了对电池10维修以及检测的便捷性。
在本申请的一些实施例中，电池10的长度方向与用电设备的行走方向平行或者相交。
在本申请中，用电设备的行走方向是指用电设备能够产生相对位移，该相对位移可以是前进或者后退。电池10的长度方向与用电设备的行走方向平行时，电池10的长度方向沿用电设备的行走方向设置；当电池10的长度方向与用电设备的行走方向相交时，电池10的长度方向与用电设备的行走方向呈角度设置，该角度不等于0。
具体地，通过对电池10的长度方向以及用电设备的行车方向之间的关系进行设定，使得电池10能够根据用电设备的需求安装在用电设备上，从而提高了电池10在用电设备中布置的便捷性。
在本申请的一些实施例中，沿第三方向，第一表面216和第二表面217相对设置，电池单体21还具有第三表面218，第三表面218为电池单体21的面积最大的面，第三表面218沿第三方向设置并与水平面相交，第三表面218连接于第一表面216和第二表面217。
在本申请中，电池单体21具有多个表面，其中，第三表面218为多个表面中面积最大的面，即电池单体21的其它面的面积均小于第三表面218的面积。
具体地，第三表面218沿第三方向设置并与水平面相交，第一表面216和第二表面217在第三方向上相对设置，即第一表面216和第二表面217平行间隔设置。将第一表面216和第二表面217设置成在第三方向上相对设置，电极端子214设置在第一表面216上，即电池单体21在上下方向(第三方向)出电极端子214，在对电池10进行维修或检测时，打开箱体30，电池单体21的第二表面217与电池10的箱体30相连，能够使得第一表面216上的电极端子214暴露在外侧，以便于箱体30打开后，在不分离电池单体21与箱体30的情况下对电池10进行维修及检测，进一步提高了对电池10维修以及检测的便捷性。
另外，第三表面218为面积最大的面，第二表面217的面积小于第三表面218，可以使得箱体30单位面积内连接更多数量的电池单体21，从而可以提高电池10能量密度。
需要指出的是，如图6至图12所示，在本申请中，第一方向和第二方向均设于水平面内，第三方向设于竖直平面内，并且第一方向、第二方向和第三方向两两垂直设置。其中，第一方向为用电设备的行走方向，第二方向与用电设备的行车方向垂直，第三方向分别与第一方向和第二方向垂直。
在本申请的一些实施例中，第三表面218的数量为两个，两个第三表面218沿第一方向相对设置，电池单体21包括极性相反的两个电极端子214，极性相反的两个电极端子214均设在第一表面216上。
本实施例中，如图8和图9所示，在图8和图9中所示，电池单体21具有第一表面216、第二表面217以及两个第三表面218，其中，第一表面216和第二表面217在第三方向上相对设置，两个第三表面218在第一方向上相对设置， 从而使得电池单体21构成了方壳电池单体。
具体地，电池单体21设置两个第三表面218，两个第三表面218均为面积最大的面，第一表面216和第二表面217在第三方向上相对设置，两个第三表面218在第一方向相对设置，进一步提高了电池单体21在电池10内布置的便捷性，以满足不同电池10的安装需求。
需要理解的是，方壳电池单体的结构设置在箱体30内，方壳电池单体的大面(面积最大的面，即第三表面218)与第一方向相交，不仅提高了箱体30内部的空间利用率，使得电池10的能量密度能够得到提高，也便于方壳电池单体在箱体30内的布局，使得方壳电池单体满足了不同电池10的安装需求。
需要指出的是，当电池单体21为方壳电池单体时，第一表面216和第二表面217分别形成了方壳电池单体的顶面和底面，即第一表面216和第二表面217中的一个为方壳电池单体的顶面，第一表面216和第二表面217中的另一个为方壳电池单体的底面，极性相反的两个电极端子214均设置在第一表面216上，从而使得方壳电池单体为上出电极端子214或下出电极端子214的结构，当对电池10进行维修及检测时，能够在上下方向上打开箱体30，从而提高了对电池10维修及检测的便捷性。
在本申请的一些实施例中，第三表面218的数量为两个，两个第三表面218沿第二方向相对设置，第二方向、第一方向和第三方向两两相交，电池单体21包括极性相反的两个电极端子214，极性相反的两个电极端子214均设在第一表面216上。
本实施例中，如图6和图7所示，在图6和图7中所示，电池单体21具有第一表面216、第二表面217以及两个第三表面218，其中，第一表面216和第二表面217在第三方向上相对设置，两个第三表面218在第二方向上相对设置，从而使得电池单体21构成了方壳电池单体。
具体地，电池单体21设置两个第三表面218，两个第三表面218均为面积最大的面，第一表面216和第二表面217在第三方向上相对设置，两个第三表面218在第二方向相对设置，进一步提高了方壳电池单体在电池10内布置的便捷性，以满足不同电池10的安装需求。
需要理解的是，方壳电池单体的结构设置在箱体30内，方壳电池单体的大面(面积最大的面，即第三表面218)与第二方向相交，不仅提高了箱体30内部的空间利用率，使得电池10的能量密度能够得到提高，也便于方壳电池单体在箱体30内的布局，使得电池单体21满足了不同电池10的安装需求。
需要指出的是，当电池单体21为方壳电池单体时，第一表面216和第二表面217分别形成了方壳电池单体的顶面和底面，即第一表面216和第二表面217中的一个为方壳电池单体的顶面，第一表面216和第二表面217中的另一个为方壳电池单体的底面，极性相反的两个电极端子214均设置在第一表面216上，从而使得方壳电池单体为上出电极端子214或下出电极端子214的结构，当对电池10进行维修及检测时，能够在上下方向上打开箱体30，从而提高了对电池10维修及检测的便捷性。
在本申请的一些实施例中，第三表面218的数量为一个，电池单体21包括极性相反的两个电极端子214，极性相反的两个电极端子214中的一个设于第一表面216上，电池单体21的壳体211构成极性相反的两个电极端子214中的另一个。
本实施例中，如图10至图12所示，在图10至图12中所示，电池单体21具有第一表面216、第二表面217以及一个第三表面218，其中，第一表面216和第二表面217在第三方向上相对设置，第三表面218在第三方向上设置并与水平面相交，从而使得电池单体21构成了圆柱电池单体。
具体地，电池单体21设置一个第三表面218，一个第三表面218均为面积最大的面，第一表面216和第二表面217在第三方向上相对设置，进一步提高了电池单体21在电池10内布置的便捷性，以满足不同电池10的安装需求。
需要理解的是，圆柱电池单体的结构设置在箱体30内，圆柱电池单体的大面(面积最大的面即第三表面218为圆柱电池单体的外周面)，将电池单体21设置成圆柱电池单体从而便于电池单体21在箱体30内的布局和安装，不仅提高了箱体30内部的空间利用率，使得电池10的能量密度能够得到提高。
需要指出的是，当电池单体21为圆柱电池单体时，第一表面216和第二表面217分别形成了圆柱电池单体的顶面和底面，即第一表面216和第二表面217中的一个为圆柱电池单体的顶面，第一表面216和第二表面217中的另一个为圆柱电池单体的底面，极性相反的两个电极端子214中的一个设置在第一表面216上，圆柱电池单体的壳体211构成了另一个电极端子214，从而使得圆柱电池单体为上出极柱或下出电极端子214的结构，当对电池10进行维修及检测时，能够在上下方向上打开箱体30，从而提高了对电池10维修及检测的便捷性。
在本申请的一些实施例中，电池单体21还具有第三表面218，第三表面218为电池单体21的面积最大的面，第三表面218沿第三方向设置并与水平面相交，第一表面216、第二表面217和第三表面218两两相交。
具体地，如图17至图20所示，第一表面216分别与第二表面217和第三表面218相交，第二表面217与第三方向相交，第二表面217构成了电池单体21的顶面或者底面，第一表面216和第三表面218构成了电池单体21的外周面，电极端子214设置在第一表面216上，第二表面217与电池10的箱体30相连。当对电池10进行维修以及检测时，将电池10的箱体30打开，此时在不分离第二表面217与箱体30的前提下，能够将具有电极端子214的第一表面216暴露在外侧，以便于通过电极端子214对电池10进行维修以及检测，从而提高了对电池10维修及检修的便捷性。
需要理解的是，第二表面217与箱体30相连，第一表面216与第二表面217相邻设置，电极端子214设置在第一表面216上，在第二表面217与箱体30相连的情况下，也不会对电极端子214产生遮挡，从而能够有效实现通过电极端子214对电池10进行维修及检测。
在本申请的一些实施例中，第一表面216的数量为两个，两个第一表面216沿第一方向相对设置，电池单体21包括极性相反的两个电极端子214，其中，极性相反的两个电极端子214均设在一个第一表面216上，或者极性相反的两个电极端子214分别设在两个第一表面216上。
具体地，如图17和图18所示，第三表面218为电池单体21的面积最大的表面，第一表面216、第二表面217和第 三表面218两两相交，其中，第一表面216的数量为两个，并且两个第一表面216在第一方向上相对设置。设置两个第一表面216，并且两个第一表面216在第一方向上相对设置，极性相反的两个电极端子214可同时设置在一个第一表面216上，也可以分别设置在两个第一表面216上，在满足电池10维修及检测具有良好便捷性的基础上，提高了电极端子214布置的便捷性，满足了电池10多样性的需求。
在本申请的一些实施例中，第一表面216的数量为两个，两个第一表面216沿第二方向相对设置，第二方向、第一方向和第三方向两两相交，电池单体21包括极性相反的两个电极端子214，其中，极性相反的两个电极端子214均设在一个第一表面216上，或者极性相反的两个电极端子214分别设在两个第一表面216上。
具体地，如图19和图20所示，第三表面218为电池单体21的面积最大的表面，第一表面216、第二表面217和第三表面218两两相交，其中，第一表面216的数量为两个，并且两个第一表面216在第二方向上相对设置。设置两个第一表面216，并且两个第一表面216在第二方向上相对设置，极性相反的两个电极端子214可同时设置在一个第一表面216上，也可以分别设置在两个第一表面216上，在满足电池10维修及检测具有良好便捷性的基础上，进一步提高了电极端子214布置的便捷性，进一步满足了电池10多样性的需求。
在本申请的一些实施例中，第二表面217为电池单体21的面积最大的面，第一表面216的面积小于第二表面217的面积，第一表面216沿第一方向设置且与第二表面217相交；电池单体21包括两个第一表面216，沿第二方向，两个第一表面216相对设置，第二方向、第一方向和第三方向两两相交。电池单体21包括极性相反的两个电极端子214，极性相反的两个电极端子214均设在同一个第一表面216上，或者极性相反的两个电极端子214分别设在两个第一表面216上。
具体地，如图21和图22所示，第二表面217与电池单体21的箱体30相连，第二表面217为面积最大的面，从而增加了第二表面217与箱体30之间的接触面积，进而提高了电池单体21与箱体30之间的连接强度及稳定性。
另外，第一表面216和第二表面217相交设置，电极端子214设置在第一表面216上，使得与箱体30连接的表面上不具有电极端子214，从而便于箱体30打开后电极端子214能够完全暴露，进而提高了对电池10维修及检测的便捷性。
此外，两个第一表面216在第二方向上相对设置并且分别与第二表面217相交，极性相反的两个电极端子214可同时设置在一个第一表面216上，也可以分别设置在两个第一表面216上，在满足电池10维修及检测具有良好便捷性的基础上，进一步提高了电极端子214布置的便捷性，进一步满足了电池10多样性的需求。
在本申请的一些实施例中，第二表面217为电池单体21的面积最大的面，第一表面216的面积小于第二表面217的面积，第一表面216沿第二方向设置且与第二表面217相交，第二方向、第一方向和第三方向两两相交；电池单体21包括两个第一表面216，沿第一方向，两个第一表面216相对设置。电池单体21包括极性相反的两个电极端子214，极性相反的两个电极端子214均设在同一个第一表面216上，或者极性相反的两个电极端子214中的一个设于一个第一表面216上，极性相反的两个电极端子214中的另一个设于另一个第一表面216上。
具体地，如图23和图24所示，第二表面217与电池单体21的箱体30相连，第二表面217为面积最大的面，从而增加了第二表面217与箱体30之间的接触面积，进而提高了电池单体21与箱体30之间的连接强度及稳定性。
另外，第一表面216和第二表面217相交设置，电极端子214设置在第一表面216上，使得与箱体30连接的表面上不具有电极端子214，从而便于箱体30打开后电极端子214能够完全暴露，进而提高了对电池10维修及检测的便捷性。
此外，两个第一表面216在第一方向上相对设置并且分别与第二表面217相交，极性相反的两个电极端子214可同时设置在一个第一表面216上，也可以分别设置在两个第一表面216上，在满足电池10维修及检测具有良好便捷性的基础上，进一步提高了电极端子214布置的便捷性，进一步满足了电池10多样性的需求。
在本申请的一些实施例中，第一表面216为电池单体21的面积最大的面。
具体地，如图13至图16所示，第一表面216为构成电池单体21的表面中的一部分，其中，电池单体21具有多个表面，第一表面216的面积最大，将电极端子214设置在第一表面216上，当对电池10进行维修及检测时，能够为维修及检测提供足够的操作空间，进一步提高了对电池10维修及检测的便捷性。
需要指出的是，当电池单体21的数量为多个时，相邻两个电池单体21中，其中一个电池单体21的电极端子214与另一个电池单体21的凹部对应设置，利用凹凸配合的结构使得相邻两个电池单体21形成的组合结构更加紧凑，从而提高了箱体30的空间利用率，使得电池10的能量密度得到了有效地提升。
在本申请的一些实施例中，电池单体21包括第一表面216和与第一表面216相对设置的第四表面，第一表面216和第四表面沿第一方向相对设置；第四表面的边缘设有凹部；第一表面216用于设置电极端子214；电极端子214在第二方向上凸出设置于第一表面216，并且与凹部对应。
具体地，如图13和图14所示，第一表面216均为面积最大的面，设置第四表面并且第四表面与第一表面216沿第一方向相对设置，当对电池10进行维修及检测时，在满足为维修及检测提供足够的操作空间的基础上，满足了电池10多样性的需求。
另外，通过将第一表面216与第四表面设置成在第一方向上相对设置，从而便于对电极端子214的有效布置，以满足不同电池10的电引出需求，进而保证了电池10的有效供电。
在本申请的一些实施例中，电池单体21包括第一表面216和与第一表面216相对设置的第四表面，第一表面216和第四表面沿第二方向相对设置，第二方向、第一方向和第三方向两两相交；第四表面的边缘设有凹部；第一表面216用于设置电极端子214；电极端子214在第二方向上凸出设置于第一表面216，并且与凹部对应。
具体地，如图15和图16所示，设置两个第一表面216，两个第一表面216均为面积最大的面，并且两个第一表面216沿第二方向相对设置，当对电池10进行维修及检测时，在满足为维修及检测提供足够的操作空间的基础上，进一步满足了电池10多样性的需求。
另外，通过将两个第一表面216设置成在第二方向上相对设置，从而便于对电极端子214的有效布置，以满足不同电池10的电引出需求，进而保证了电池10的有效供电。
在本申请的一些实施例中，电池10还包括导热件40，导热件40沿第一方向设置，导热件40至少与电池单体21的面积最大的面导热连接。
具体地，如图25、图27和图28所示，电池10还包括导热件40，该导热件40设置在电池10的箱体30内，并且导热件40沿第一方向设置。电池单体21的面积最大的面与导热件40导热连接，使得电池单体21与导热件40之间的接触面积得到了增大，从而增加了电池单体21与导热件40之间的换热效率，降低了电池10因散热不佳导致的安全隐患。
另外，在本申请中，第一方向为用电设备的行走方向，第二方向与第一方向均处于同一平面内，并且第二方向与第一方向垂直。沿第二方向外部对用电设备产生冲击时，导热件40端部能够被有效保护，从而防止因导热件40的端部损害导致导热件40失效的情况发生。
在本申请的一些实施例中，电池10包括至少两个电池组件20；沿第二方向，导热件40的两侧分别与两个电池组件20导热连接，第二方向、第一方向和第三方向两两相交。
具体地，如图27和图28所示，导热件40设于两个电池组件20之间，并与两个电池组件20分别导热连接。其中，第二方向为电池10的宽度方向或用电设备的行走方向的侧向方向。通过将导热件40的两侧分别与电池单体21的面积最大的面导热连接，从而提高导热件40对电池单体21的换热效果。
另外，设于箱体30内的电池组件20均与导热件40导热连接，进一步保证了电池组件20的充分散热，使得电池10因散热不佳导致的安全隐患得到了进一步地降低。
在本申请的一些实施例中，电池10包括多个导热件40，多个导热件40沿第二方向排列，第二方向、第一方向和第三方向两两相交。
具体地，如图27和图28所示，设置多个导热件40，进一步增加了对电池单体21的热交换能力，使得电池10能够维持在相对安全的温度区间内，进一步降低了因散热不佳导致的安全隐患。
在本申请的一些实施例中，沿第二方向，电池组件20的两侧分别设有导热件40；电池组件20与两侧的导热件40导热连接。
具体地，如图27和图28所示，电池组件20的两侧分别与导热件40导热连接，进一步增加了对电池组件20的散热能力，使得电池10的温度能够维持在相对安全的温度区间内，进一步降低了因散热不佳导致的安全隐患。
在本申请的一些实施例中，沿第二方向，电池单体21包括两个相对的第三表面218，第三表面218为电池单体21面积最大的面，电池单体21的两个第三表面218分别与一个导热件40导热连接。
具体地，如图27和图28所示，设置两个面积最大的第三表面218，两个第三表面218分别导热连接一个导热件40，进一步增加了电池单体21与导热件40之间的换热效率，从而提高了电池单体21的散热性能，进一步降低了电池10因温度过高导致的安全隐患。
在本申请的一些实施例中，导热件40可以为电子制冷片，例如PTC等。
在本申请的一些实施例中，如图30所示，电池单体21包括电极组件213，电极组件213包括主体部2131和凸出于主体部2131的极耳2132，极耳2132与电极端子214电连接；沿第二方向，导热件40和主体部2131的投影至少部分重合且具有重合区域，第一方向、第二方向和第三方向两两相交。
具体地，电池单体21在使用过程中，其发热主要集中在电极组件213的主体部2131上，将导热件40与主体部2131之间设置重合区域，使得主体部2131能够与导热件40进行有效散热，提高了导热件40对主体部2131的换热性能，使得电池单体21能够维持在安全温度之下，进而提升了使用的安全性。
结合图29和图30所示，在本申请的一些实施例中，沿第三方向，主体部2131的尺寸为L1，导热件40的尺寸为L2，其中，0.5≤L2/L1≤1.5。
本实施例中，将L2/L1范围值设定在区间[0.5，1.5]的范围内，能够减少导热件40在第三方向上所占用的空间，使得电池10的空间利用率得到了进一步提升。
需要理解的是，当L2/L1小于0.5时，导热件40的尺寸过小，无法对电池单体21进行有效换热；当L2/L1大于1.5时，导热件40的尺寸较大，易于占用电池10的空间，不利于提高电池10的空间利用率。
需要指出的是，在本实施例中，L2/L1的取值可以为0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4……1.5。
在本申请的一些实施例中，沿第三方向，重合区域的尺寸为L3，0.5≤L3/L1≤1。
本实施例中，通过对重合区域在第三方向尺寸的设定，从而能够使得导热件40与主体部2131之间的换热面积能够合理设定，能够极大地增强导热件40对主体部2131的换热效果。
需要理解的是，当L3/L1小于0.5时，导热件40与主体部2131的重合面积过小，使得导热件40对电池单体21的换热效果变差，无法有效保证对电池单体21的散热。
需要指出的是，在本实施例中，L3/L1的取值可以为0.5、0.6、0.7、0.8、0.9……1。
在本申请的一些实施例中，导热件40内设有容纳换热介质的通道。
具体地，导热件40连通有介质循环装置，并且通道内注有换热介质(例如水或者油等)，换热介质能够在通道内循环。电池单体21通过导热件40与通道内的换热介质进行热传递，换热介质在通道内流动，并将与电池单体21交换的热量带出，该种换热方式的换热效率高且结构简单。
在本申请的一些实施例中，电池10还包括集流件50，集流件50与导热件40流体连通。其中，导热件40位于第一方向的一端设有集流件50，或者导热件40位于第一方向的两端分别设有集流件50。
具体地，如图27和图28所示，集流件50设置在导热件40在第一方向上的一端或者两端上。设置集流件50，能够实现对导热件40内的换热介质进行汇集，减少了部件的数量，从而提高了箱体30内的空间利用率。
另外，当电池10受到第二方向上挤压或撞击时，集流件50的设置位置能够避让开挤压或撞击，减少集流件50被损坏的可能性，以使换热介质能够充分对电池单体21进行散热，进一步降低了电池10因温度过高导致的安全隐患。
在本申请的一些实施例中，集流件50为两个，两个集流件50设于导热件40的位于第一方向的一端，两个集流件50沿第三方向排布，第三方向为电池单体21的高度方向，第一方向、第二方向和第三方向两两相交。
具体地，设置两个集流件50，从而提高了对换热介质的集流性能，使得换热介质能够具有良好的流速，进一步提高了换热介质对电池单体21的换热能力。
另外，将两个集流件50共同设于第一方向的一端，且沿第三方向排布，可有效地减小集流件50沿第一方向在电池10内的占用空间，从而便于在电池10内设置其他结构。
在本申请的一些实施例中，电池单体21还包括泄压机构215，泄压机构215设置在电池单体21的任一表面上。
具体地，当电池单体21发生热失控时，可通过泄压机构215及时释放电池单体21内部的压力，以避免电池单体21发生爆炸等安全隐患。
需要理解的是，泄压机构215可以设置在电池单体21的第一表面216、第二表面217、第三表面218或者其它表面上。
在本申请的一些实施例中，泄压机构215设在第一表面216或第二表面217上。
具体地，如图6至图12所示，泄压机构215与电极端子214均设于第一表面216上，通过将泄压机构215设置在第一表面216上，从而便于对泄压机构215与电极端子214的同步安装，进而提高了装配的便捷性，使得生产的效率得到了提升。
另外，当泄压机构215设置在第二表面217上时，第二表面217与箱体30相连，从而利用箱体30对泄压机构215的外侧形成防护，减少了泄压机构215受到冲击的可能性。
此外，泄压机构215的设置位置能够满足不同电池单体21类型的需求，进一步提高了电池10的安全性能。
在本申请的一些实施例中，电池组件20包括至少两个电池单体21，至少两个电池单体21沿第一方向排列。
具体地，至少两个电池单体21沿第一方向排列设置，便于电池单体21在箱体30内部的布局。
需要指出的是，当至少两个电池单体21沿第一方向排列时，电池单体21的大面(面积最大的面)可以沿第一方向设置并与水平面相交，也可以沿第二方向设置并与水平面相交。
在本申请的一些实施例中，电池单体21包括电极组件213；电极组件213为卷绕式结构且为扁平状，电极组件213的外表面包括两个扁平面，两个扁平面沿第二方向相互面对，或者电极组件213为叠片式结构，电极组件213的第一极片、隔膜和第二极片沿第二方向层叠。第二方向、第一方向和第三方向两两相交。
电极组件213是电池单体21中发生电化学反应的部件。在电池单体21的内部可以包含一个或更多个电极组件213。电极组件213主要由极片(正极片和负极片)卷绕或层叠放置形成，并且通常在正极片(第一极片)与负极片(第二极片)之间设有隔膜。极片(第一极片和第二极片)具有活性物质的部分构成电极组件213的主体部2131，第一极片和第二极片不具有活性物质的部分各自构成极耳2132。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2131的两端。
具体地，通过将电极组件213设置成卷绕式结构且为扁平状，以及电极组件213的外表面包括两个扁平面，两个扁平面沿第二方向相互面对，或者将电极组件213为叠片式结构，从而减少了电极组件213在第一方向上所占用的空间，以便于电池10在第一方向上进行其他部件的布局和安装。
在本申请的一些实施例中，沿第一方向，电池单体21的最大尺寸为L，沿第二方向，电池单体21的最大尺寸为D，第二方向、第一方向和第三方向两两相交，其中，L/D范围值为1～30。
具体地，如图7所示，图7中，电池单体21沿第一方向上的最大尺寸为L，电池单体21沿第二方向上的最大尺寸为D，通过对电池单体21在第一方向和第二方向上尺寸进行设定，能够在保证电池单体21支撑强度的基础上，最大限度地提升电池单体21的电量。
需要指出的是，L/D的取值可以为1、2、3、4、5、6、7、8……30。通过L/D设定不同的值，从而能给使得电池单体21具有不同的形状，进而满足不同型号的电池10的需求。
在本申请的一些实施例中，沿所述第一方向，电池单体21的最大尺寸为L，沿第三方向，电池单体21的最大尺寸为H，L/H范围值为0.5～6；第一方向、第二方向和第三方向两两相交。
具体地，如图7所示，图7中，电池单体21沿第一方向上的最大尺寸为L，电池单体21沿第三方向上的最大尺寸为H，电池单体21的按照上述尺寸比例设置，能够最大限度地提升电池单体21的电量。
需要指出的是，L/H的取值可以为0.5、1、1.5、2、2.5、3、3.5、4……6。通过L/H设定不同的值，从而能给使得电池单体21具有不同的形状，进而满足不同型号的电池10的需求。
在本申请的一些实施例中，箱体30包括第一部分31和第二部分32，第一部分31与第二部分32以可拆卸的方式连接，第二表面217的数量为至少一个，至少一个第二表面217与第一部分31或第二部分32粘接。
具体地，如图5所示，通过将第二表面217设置成与箱体30的第一部分31或第二部分32粘接固定，从而提高了装配过程中的便捷性。
另外，粘接固定的连接强度高，能够有效保证了电池单体21在箱体30内的稳定性。
在本申请的一些实施例中，电池单体21的第二表面217与箱体30的第一部分31或第二部分32之间还可以通过卡接的方式进行连接固定。例如在第一部分31或第二部分32对应电池单体21的位置设置卡槽，通过将电池单体21的卡入卡槽即可实现电池单体21与第一部分31或第二部分32的连接固定。
在本申请的一些实施例中，第二表面217的数量为两个，两个第二表面217相对设置，第一部分31与一个第二表面217粘接，第二部分32与另一个第二表面217粘接。
具体地，第二表面217的数量为两个，并且两个第二表面217在第三方向上相对设置，通过将第二表面217设置成 两个，并且两个第二表面217分别与箱体30的第一部分31和第二部分32粘接固定，进一步提高了电池单体21与箱体30之间的连接强度，使得电池单体21在箱体30内的稳定性得到了进一步地提高。
在本申请的一些实施例中，如图30所示，第二表面217通过第一粘接层60与第一部分31和/或第二部分32固定连接，电池10还包括导热件40，导热件40通过第二粘接层70与电池单体21的面积最大的面导热连接，第一粘接层60的导热系数小于或等于第二粘接层70的导热系数。
具体地，由于第一粘接层60用于连接第二表面217和箱体30，而第二粘接层70用于导热连接电池单体21的面积最大的面和导热件40，故将第一粘接层60的导热系数小于或等于第二粘接层70的导热系数设置，以保证更加有效地通过导热件40对电池单体21进行散热。
在本申请的一些实施例中，第一粘接层60的导热系数与第二粘接层70的导热系数的比值范围为0.1～1。
具体地，上述比值范围的设置，均能够有效地通过导热件40对电池单体21进行散热。
需要指出的是，第一粘接层的导热系数与第二粘接层的导热系数的比值可以为0.1、0.2、0.3、0.4、0.5、0.6、0.7、0.8、0.9……1。
另外，在本实施例中，第一粘接层60与第二粘接层70可以为同一种胶，但是两者的导热系数不同，即第一粘接层60的导热系数小于第二粘接层70的导热系数，例如第一粘结层60和第二粘结层70分别可选用导热型聚氨酯胶粘剂层，并在其中添加不同份量的导热颗粒，从而达到不同的导热系数。
另外，第一粘结层60和第二粘结层70可以为两种不同的胶，例如第一粘接层60可以为结构胶、发泡填充胶、压敏胶或灌封胶等，第二粘接层70可以为导热胶等。
在本申请的一些实施例中，电池10还包括挡板321，挡板321沿第三方向与电池单体21设有电极端子214的第一表面216相对设置，电极端子214与挡板321的间隔为1.2mm～25mm。
具体地，挡板321设置在箱体30内部并与电池单体21的电机端子对应设置，将挡板321与电极端子214间隔1.2mm～25mm设置，能够防止电池10沿第二方向发生撞击时，挡板321与电极端子214相撞击，从而导致电极端子214的损坏。
需要指出的是，挡板321与电极端子214间隔距离可以为1.2mm、3mm、4.5mm、6mm、8.5mm、1mm……25mm。
本申请的第二方面提出了一种用电设备，包括如上的电池10，电池10用于提供电能驱动用电设备行走。
在本申请的一些实施例中，在电池10的长度方向与用电设备的行走方向不同的情况下，第一方向为用电设备的行走方向。
具体地，如图1至图9所示，将第一方向设定为用电设备的行走方向，第三方向分别与第一方向和水平方向均相交，位于电池10的箱体30内部的电池单体21具有第一表面216和第二表面217，第一表面216设置电极端子214，第二表面217与箱体30相连，第一方向的设定，便于电池10在用电设备上的安装和布局，以及通过调整电池单体21在箱体30内部的排列方式，来满足不同用电设备的使用需求。
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。
在本申请的实施方式中，如图1至图33所示，本申请提出了一种电池10，该电池10包括箱体30和设于箱体30内的电池组件20，电极组件213的数量至少为一个，每个电极组件213中包括至少一个电池单体21，其中，电池单体21包括第一表面216和第二表面217，第一表面216上设置有电极端子214，第二表面217与箱体30相连。电池组件20沿第一方向设置(第一方向为电池10的长度方向或具有电池10的用电设备的行走方向)，第二表面217与第三方向(电池10的高度方向)相交，其中，第一表面216可以沿第一方向设置并与水平面相交，也可以沿第二方向(电池10的宽度方向)设置并与水平面相交，还可以与第二表面217在第三方向上相对设置，第一方向、第二方向和第三方向两两相交。
当电池10用于用电设备时，以用电设备为车辆为例，在电池10的驱动下，车辆能够行走，构成电池10的电池组件20沿第一方向设置，该第一方向可以为车辆的行走方向，即电池组件20沿车辆1的行走方向设置。另外，在本申请中，电池10为矩形结构，呈矩形结构的电池10具有长度方向、宽度方向和高度方向，位于箱体30内的电池组件20沿第一方向设置，该第一方向还可以为电池10的长度方向。
具体地，电池单体21具有第一表面216和第二表面217，第二表面217设置成与第三方向相交(第三方向分别与第一方向和水平方向均相交)，其中，第一表面216设置电极端子214，第二表面217与箱体30相连，使得电池单体21与箱体30的连接面上不具有电极端子214，以便于箱体30打开后电极端子214能够充分暴露在外，以便于箱体30打开后，在不分离电池单体21与箱体30的情况下对电池10进行维修及检测，提高了对电池10维修以及检测的便捷性。
进一步地，当第一表面216和第二表面217对应设置时，两者可以均为面积最大的面，也可以均不是面积最大的面；当第一表面216和第二表面217相交设置时，第一表面216和第二表面217中的任意一个可以为面积最大的表面；当第一表面216和第二表面217均不是面积最大的表面时，电池单体21还具有面积最大的第三表面218，当第一表面216与第二表面217在第三方向上相对设置时，第三表面218可以设置在第一表面216和第二表面217之间；当第一表面216、第二表面217和第三表面218两两相交时，第一表面216和第三表面218构成了电池单体21的外周面。
箱体30包括第一部分31和第二部分32，其中，第二部分32可以为一端开口的空心结构，第一部分31可以为板状结构，第一部分31盖合于第二部分32的开口侧，以使第一部分31与第二部分32共同限定出容纳电池单体21的空间。第二表面217可与第一部分31或第二部分32通过第一粘接层60粘接固定。
沿所述第一方向，电池单体21的最大尺寸为L，沿第二方向，电池单体21的最大尺寸为D，其中，L/D范围值为1～30。沿第三方向，电池单体21的最大尺寸为H，L/H范围值为0.5～6。
进一步地，在电池单体21上设置有泄压机构215，泄压机构215可以设置在第一表面216、第二表面217和第三表面218中的任意一个上，本申请说明书附图示出的结构中，泄压机构215与电极端子214均设于第一表面216上。
进一步地，电池10还包括导热件40，导热件40设置在电池10的箱体30内，并且导热件40沿第一方向设置，导 热件40与电池单体21导热连接，其中，电池单体21与导热件40导热连接的面可以为电池单体21面积最大的面。导热件40内设有容纳换热介质的通道，换热介质在通道流动，并通道导热件40与电池单体21进行热传递。
导热件40与电池单体21之间通过第二粘接层70粘接固定，第一粘接层60的导热系数与第二粘接层70的导热系数的比值范围为0.1～1。
进一步地，沿第二方向，导热件40和主体部2131的投影至少部分重合且具有重合区域。
进一步地，沿第三方向，主体部2131的尺寸为L1，导热件40的尺寸为L2，其中，0.5≤L2/L1≤1.5。
进一步地，沿第三方向，重合区域的尺寸为L3，0.5≤L3/L1≤1。
进一步地，电池10还包括集流件50，集流件50设置在导热件40位于第一方向上的端部并与导热件40的换热介质通道连通。
进一步地，箱体30内还设有挡板321，挡板321与电池单体21的电极端子214对应设置，并且电极端子214与挡板321之间的间隔为1.2mm～25mm。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。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 (38)

  1. 一种电池，其特征在于，所述电池包括：
    箱体(30)；
    电池组件(20)，容纳于所述箱体(30)，所述电池组件(20)包括至少一个电池单体(21)，所述电池组件(20)沿第一方向设置，所述第一方向为所述电池的长度方向或具有所述电池的用电设备的行走方向，所述电池单体(21)具有第一表面(216)和第二表面(217)，所述第一表面(216)设有电极端子(214)，所述第二表面(217)与所述箱体(30)相连，所述第二表面(217)与第三方向相交，所述第三方向与所述第一方向和水平面均相交。
  2. 如权利要求1所述的电池，其特征在于，所述电池的长度方向与所述用电设备的行走方向平行或者相交。
  3. 如权利要求1或2所述的电池，其特征在于，沿所述第三方向，所述第一表面(216)和所述第二表面(217)相对设置，所述电池单体(21)还具有第三表面(218)，所述第三表面(218)为所述电池单体(21)的面积最大的面，所述第三表面(218)沿所述第三方向设置并与所述水平面相交，所述第三表面(218)连接于所述第一表面(216)和所述第二表面(217)。
  4. 如权利要求3所述的电池，其特征在于，所述第三表面(218)的数量为两个，两个所述第三表面(218)沿所述第一方向相对设置，所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)均设在所述第一表面(216)上。
  5. 如权利要求3所述的电池，其特征在于，所述第三表面(218)的数量为两个，两个所述第三表面(218)沿所述第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交，所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)均设在所述第一表面(216)上。
  6. 如权利要求3所述的电池，其特征在于，所述第三表面(218)的数量为一个，所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)中的一个设于所述第一表面(216)上，所述电池单体(21)的壳体(211)构成所述极性相反的两个电极端子(214)中的另一个。
  7. 如权利要求1或2所述的电池，其特征在于，所述电池单体(21)还具有第三表面(218)，所述第三表面(218)为所述电池单体(21)的面积最大的面，所述第三表面(218)沿所述第三方向设置并与所述水平面相交，所述第一表面(216)、所述第二表面(217)和所述第三表面(218)两两相交。
  8. 如权利要求7所述的电池，其特征在于，所述第一表面(216)的数量为两个，两个所述第一表面(216)沿所述第一方向相对设置，所述电池单体(21)包括极性相反的两个电极端子(214)；
    其中，所述极性相反的两个电极端子(214)均设在一个所述第一表面(216)上，或者所述极性相反的两个电极端子(214)分别设在两个所述第一表面(216)上。
  9. 如权利要求7所述的电池，其特征在于，所述第一表面(216)的数量为两个，两个所述第一表面(216)沿所述第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交，所述电池单体(21)包括极性相反的两个电极端子(214)；
    其中，所述极性相反的两个电极端子(214)均设在一个所述第一表面(216)上，或者所述极性相反的两个电极端子(214)分别设在两个所述第一表面(216)上。
  10. 如权利要求1或2所述的电池，其特征在于，所述第二表面(217)为所述电池单体(21)的面积最大的面，所述第一表面(216)的面积小于所述第二表面(217)的面积，所述第一表面(216)沿所述第一方向设置且与所述第二表面(217)相交；所述电池单体(21)包括两个所述第一表面(216)，沿所述第二方向，两个所述第一表面(216)相对设置，所述第二方向、所述第一方向和所述第三方向两两相交；
    所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)均设在同一个所述第一表面(216)上，或者所述极性相反的两个电极端子(214)分别设在两个所述第一表面(216)上。
  11. 如权利要求1或2所述的电池，其特征在于，所述第二表面(217)为所述电池单体(21)的面积最大的面，所述第一表面(216)的面积小于所述第二表面(217)的面积，所述第一表面(216)沿所述第二方向设置且与所述第二表面(217)相交，所述第二方向、所述第一方向和所述第三方向两两相交；所述电池单体(21)包括两个所述第一表面(216)，沿所述第一方向，两个所述第一表面(216)相对设置；
    所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)均设在同一个所述第一表面(216)上，或者所述极性相反的两个电极端子(214)分别设在两个所述第一表面(216)上。
  12. 如权利要求1或2所述的电池，其特征在于，所述第一表面(216)为所述电池单体(21)的面积最大的面。
  13. 如权利要求12所述的电池，其特征在于，所述电池单体(21)包括所述第一表面(216)和与所述第一表面(216)相对设置的第四表面，所述第一表面(216)和所述第四表面沿第一方向相对设置；所述第四表面的边缘设有凹部；所述第一表面(216)用于设置所述电极端子(214)；所述电极端子(214)在所述第二方向上凸出设置于所述第一表面(216)，并且与所述凹部对应。
  14. 如权利要求12所述的电池，其特征在于，所述电池单体(21)包括所述第一表面(216)和与所述第一表面(216)相对设置的第四表面，所述第一表面(216)和所述第四表面沿第二方向相对设置，所述第二方向、所述第一方向和所述第三方向两两相交；所述第四表面的边缘设有凹部；所述第一表面(216)用于设置所述电极端子(214)；所述电极端子(214)在所述第二方向上凸出设置于所述第一表面(216)，并且与所述凹部对应。
  15. 如权利要求1至14任一项所述的电池，其特征在于，所述电池还包括导热件(40)，所述导热件(40)沿所述第一方向设置，所述导热件(40)至少与所述电池单体(21)的面积最大的面导热连接。
  16. 如权利要求15所述的电池，其特征在于，所述电池包括至少两个电池组件(20)；沿第二方向，所述导热件 (40)的两侧分别与两个所述电池组件(20)导热连接，所述第二方向、所述第一方向和所述第三方向两两相交。
  17. 如权利要求15所述的电池，其特征在于，所述电池包括多个所述导热件(40)，多个所述导热件(40)沿第二方向排列，所述第二方向、所述第一方向和所述第三方向两两相交。
  18. 如权利要求17所述的电池，其特征在于，沿所述第二方向，所述电池组件(20)的两侧分别设有所述导热件(40)；所述电池组件(20)与两侧的所述导热件(40)导热连接。
  19. 如权利要求18所述的电池，其特征在于，沿所述第二方向，所述电池单体(21)包括两个相对的第三表面(218)，所述第三表面(218)为所述电池单体(21)面积最大的面，所述电池单体(21)的两个所述第三表面(218)分别与一个所述导热件(40)导热连接。
  20. 如权利要求1至19任一项所述的电池，其特征在于，所述电池单体(21)包括电极组件(213)，所述电极组件(213)包括主体部(2131)和凸出于所述主体部(2131)的极耳(2132)，所述极耳(2132)与所述电极端子(214)电连接；沿第二方向，所述导热件(40)和所述主体部(2131)的投影至少部分重合且具有重合区域，所述第一方向、所述第二方向和所述第三方向两两相交。
  21. 如权利要求20所述的电池，其特征在于，沿所述第三方向，所述主体部(2131)的尺寸为L1，所述导热件(40)的尺寸为L2，其中，0.5≤L2/L1≤1.5。
  22. 如权利要求20所述的电池，其特征在于，沿所述第三方向，所述重合区域的尺寸为L3，0.5≤L3/L1≤1。
  23. 如权利要求15至22任一项所述的电池，其特征在于，所述导热件(40)内设有容纳换热介质的通道。
  24. 如权利要求23所述的电池，其特征在于，所述电池还包括集流件(50)，所述集流件(50)与所述导热件(40)流体连通；
    其中，所述导热件(40)位于所述第一方向的一端设有所述集流件(50)，或，所述导热件(40)位于所述第一方向的两端分别设有所述集流件(50)。
  25. 如权利要求24所述的电池，其特征在于，所述集流件(50)为两个，两个所述集流件(50)设于所述导热件(40)的位于所述第一方向的一端，两个所述集流件(50)沿所述第三方向排布。
  26. 如权利要求1至25任一项所述的电池，其特征在于，所述电池单体(21)还包括泄压机构(215)，所述泄压机构(215)设置在所述电池单体(21)的任一表面上。
  27. 如权利要求26所述的电池，其特征在于，所述泄压机构(215)设在所述第一表面(216)或所述第二表面(217)上。
  28. 如权利要求1至27任一项所述的电池，其特征在于，所述电池组件(20)包括至少两个电池单体(21)，所述至少两个电池单体(21)沿所述第一方向排列。
  29. 如权利要求1至28任一项所述的电池，其特征在于，所述电池单体(21)包括电极组件(213)；所述电极组件(213)为卷绕式结构且为扁平状，所述电极组件(213)的外表面包括两个扁平面，两个所述扁平面沿第二方向相互面对；
    或，所述电极组件(213)为叠片式结构，所述电极组件(213)的第一极片、隔膜和第二极片沿第二方向层叠；
    所述第二方向、所述第一方向和所述第三方向两两相交。
  30. 如权利要求1至29任一项所述的电池，其特征在于，沿所述第一方向，所述电池单体(21)的最大尺寸为L，沿所述第二方向，所述电池单体(21)的最大尺寸为D，所述第二方向、所述第一方向和所述第三方向两两相交，其中，L/D范围值为1～30。
  31. 如权利要求1至29任一项所述的电池，其特征在于，沿所述第一方向，所述电池单体(21)的最大尺寸为L，沿所述第三方向，所述电池单体(21)的最大尺寸为H，L/H范围值为0.5～6。
  32. 如权利要求1至31任一项所述的电池，其特征在于，所述箱体(30)包括第一部分(31)和第二部分(32)，所述第一部分(31)与所述第二部分(32)以可拆卸的方式连接，所述第二表面(217)的数量为至少一个，至少一个所述第二表面(217)与所述第一部分(31)或所述第二部分(32)粘接。
  33. 如权利要求32所述的电池，其特征在于，所述第二表面(217)的数量为两个，两个所述第二表面(217)相对设置，所述第一部分(31)与一个所述第二表面(217)粘接，所述第二部分(32)与另一个所述第二表面(217)粘接。
  34. 如权利要求32或33所述的电池，其特征在于，所述第二表面(217)通过第一粘接层(60)与所述第一部分(31)和/或第二部分(32)固定连接，所述电池还包括导热件(40)，所述导热件通过第二粘接层(70)与所述电池单体(21)的面积最大的面导热连接，所述第一粘接层(60)的导热系数小于或等于所述第二粘接层(70)的导热系数。
  35. 如权利要求34所述的电池，其特征在于，所述第一粘接层(60)的导热系数与所述第二粘接层(70)的导热系数的比值范围为0.1～1。
  36. 如权利要求1至35任一项所述的电池，其特征在于，所述电池还包括挡板，所述挡板沿所述第三方向与所述电池单体(21)设有电极端子(214)的所述第一表面(216)相对设置，所述电极端子(214)与所述挡板的间隔为1.2mm～25mm。
  37. 一种用电设备，其特征在于，包括如权利要求1至36中任一项所述的电池，所述电池用于提供电能驱动所述用电设备行走。
  38. 如权利要求37所述的用电设备，其特征在于，在所述电池的长度方向与所述用电设备的行走方向不同的情况下，所述第一方向为所述用电设备的行走方向。
PCT/CN2022/125501 2022-10-14 2022-10-14 电池及用电设备 WO2024077622A1 (zh)

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CN110911596A (zh) * 2018-09-17 2020-03-24 中信国安盟固利动力科技有限公司 一种电池模组固定结构
CN114497681A (zh) * 2022-02-14 2022-05-13 湖北亿纬动力有限公司 一种电池成组方法及动力电池包
CN216903175U (zh) * 2022-01-06 2022-07-05 宁德时代新能源科技股份有限公司 一种密封件、电池、用电装置

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CN208674219U (zh) * 2018-09-05 2019-03-29 北京车和家信息技术有限公司 电池箱底箱体、电池箱及车辆
CN110911596A (zh) * 2018-09-17 2020-03-24 中信国安盟固利动力科技有限公司 一种电池模组固定结构
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