WO2023092457A1 - 电池的箱体、电池、用电装置、制备电池的方法和装置 - Google Patents

电池的箱体、电池、用电装置、制备电池的方法和装置 Download PDF

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Publication number
WO2023092457A1
WO2023092457A1 PCT/CN2021/133554 CN2021133554W WO2023092457A1 WO 2023092457 A1 WO2023092457 A1 WO 2023092457A1 CN 2021133554 W CN2021133554 W CN 2021133554W WO 2023092457 A1 WO2023092457 A1 WO 2023092457A1
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WO
WIPO (PCT)
Prior art keywords
box body
box
rigid
hole
battery
Prior art date
Application number
PCT/CN2021/133554
Other languages
English (en)
French (fr)
Inventor
可庆朋
潘鑫
陈智明
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 CN202180093322.3A priority Critical patent/CN116888813A/zh
Priority to PCT/CN2021/133554 priority patent/WO2023092457A1/zh
Priority to EP21965191.6A priority patent/EP4280354A1/en
Publication of WO2023092457A1 publication Critical patent/WO2023092457A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/229—Composite material consisting of a mixture of organic and inorganic materials
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the embodiments of the present application relate to the battery field, and more specifically, relate to a battery case, a battery, an electrical device, and a method and device for preparing a battery.
  • Energy saving and emission reduction is the key to the sustainable development of the automobile industry.
  • electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy saving and environmental protection.
  • battery technology is an important factor related to its development.
  • the present application provides a battery box, a battery, an electrical device, a method and a device for preparing the battery, which can improve the installation stability of the battery in the electrical device.
  • a battery box including: a first part of the box, provided with a first hole; a mounting structure, located in the box, and corresponding to the first hole, the mounting structure is used to pass through the first hole Install the box to the electrical device; wherein, the edge of the first hole is provided with a rigid structure, and the rigid structure abuts against the installation structure to prevent the installation structure from contacting the first part of the box.
  • the box body is provided with an installation structural member corresponding to the first hole in the first part of the box body, and the box body can be installed to the electrical device through the first hole.
  • the edge of the first hole is also provided with a rigid structural member, and the rigid structural member abuts against the installation structural member, which can prevent the installation structural member from causing wear to the position at the edge of the first hole in the first part of the box, thereby Problems such as the rigidity and strength reduction of the first part of the box body caused by the wear and tear are prevented.
  • the rigid structure and the first part of the box abut against each other through the first sealing member, so as to ensure the sealing between the rigid structure and the first part of the box.
  • the first sealing member abuts between the rigid structure and the first part of the box to ensure the tightness between the rigid structure and the first part of the box, thereby improving the overall sealing of the box and improve the safety performance of electrical components such as battery cells inside the box.
  • the rigid structure and the installation structure abut against each other through the second sealing member, so as to ensure the sealing between the rigid structure and the installation structure.
  • the second sealing member abuts between the rigid structural member and the installation structural member to ensure the sealing between the rigid structural member and the installation structural member, thereby improving the overall airtightness of the box body , and improve the safety performance of electrical components such as battery cells inside the box.
  • the box body further includes: a fixing member, located outside the box body, and connected to the installation structural member through the first hole, the fixing member is used to fix the first part of the box body and the rigid structural member to the installation structural member .
  • the first part of the box body and the rigid structural member are fixed to the installation structural member by using the fixing member, so that the reliable and firm interconnection between the first part of the box body, the rigid structural member and the installation structural member can be realized, thereby Further improve the installation stability of the box body and the battery in the electrical device.
  • the rigid structure abuts against the fixing part to prevent the fixing part from contacting the first part of the box body.
  • the rigid structural member in addition to abutting against the installation structure, also abuts against the fixing piece to prevent the fixing piece from contacting the first part of the box body, thereby preventing the fixing piece from touching the first part of the box body. body to cause wear and tear, further ensuring the rigidity and strength of the first part of the box, and improving the installation stability of the box and the battery in the electrical device.
  • the rigid structure covers the side wall of the first hole, and the surface of the first part of the box body located at the edge of the first hole and facing the inside and outside of the box body.
  • the rigid structural parts can not only prevent the installation structural parts and fixing parts located on the inner and outer surfaces of the first part of the box from causing wear to the first part of the box, but also ensure the rigidity and strength of the first part of the box.
  • the rigid structural part also covers the side wall of the first hole, that is, it is arranged between the fixing part and the installation structure part, which can provide a rigid connection between the fixation part and the installation structure part, and bear the tightening between the fixation part and the installation structure part Force, to ensure that there will be no looseness between the fixing part and the installation structure.
  • the rigid structure includes a first rigid sleeve and a second rigid sleeve
  • the first rigid sleeve includes a first tubular structure and a first flange structure
  • the first tubular structure is located on the side wall of the first hole
  • the first flange structure covers the surface of the first part of the box that is located at the edge of the first hole and faces the inside of the box
  • the second rigid sleeve includes a second tubular structure and a second flange structure, and the second tubular structure is located at the edge of the first hole.
  • the side wall is matched with the first tubular structure
  • the second flange structure covers the surface of the first part of the box body that is located at the edge of the first hole and faces the outside of the box body.
  • the rigid structure can be composed of two rigid sleeves configured to be able to be connected to each other, so as to facilitate the installation of the rigid structure at the edge of the first hole in the first part of the box.
  • the second tubular structure covers at least part of the sidewall of the first hole, and the first tubular structure covers at least part of the second tubular structure.
  • the first tubular structure and the second tubular structure are connected to each other and arranged on the side wall of the first hole, compared with the second tubular structure, the first tubular structure is farther away from the The side wall of the first hole is provided, and the length of the first flange structure connected to the first tubular structure in the radial direction is longer, so that the area of the first flange structure and the connection between the first flange structure and the first flange structure can be increased.
  • the contact area between the installation structural parts ensures the reliability of the connection between the first rigid sleeve and the installation structural parts.
  • the second seal can be conveniently arranged between the first flange structure and the installation structure, and the contact area between the second seal and the first flange structure and the installation structure can also be increased. Therefore, the sealing performance of the second sealing member between the first flange structure and the installation structure is improved.
  • the first rigid sleeve can be arranged on the first hole, wherein the first tubular structure can cover at least part of the side wall of the first hole, and then, the second rigid sleeve can be placed on the first hole.
  • the rigid sleeves are connected to each other, and the installation process between the two is relatively simple, and can be well matched with the first hole.
  • first tubular structure and the second tubular structure are connected to each other through threads.
  • connection method between the first tubular structure and the second tubular structure is simple and easy to implement, and can ensure a stable and reliable connection between the first rigid sleeve and the second rigid sleeve.
  • the first flange structure and the first part of the box abut against each other through the first seal, the width of the first seal substantially covers the width of the first flange structure, and/or the first seal
  • the thickness of the piece is between 0.2mm and 0.3mm.
  • the width of the first sealing member basically covers the width of the first flange structure, and the space of the first flange structure can be used to a large extent to arrange enough first sealing members to realize the first flange structure. More reliable sealing and connection between the structure and the first part of the box body.
  • the thickness of the first sealing member can be between 0.2mm and 0.3mm, so that the first sealing member can have better mechanical properties, so as to ensure and optimize the reliable connection between the first rigid sleeve and the first part of the box body .
  • the first flange structure is provided with a limiting step for accommodating the first sealing member.
  • a limiting step is provided on the first flange structure of the first rigid sleeve, so as to control the size of the first sealing member accommodated in the limiting step.
  • This embodiment is relatively simple and easy to implement, and can also enable the first sealing member to have good performance, thereby improving the overall manufacturing efficiency and performance of the box body.
  • the first sealing member is structural adhesive.
  • the first sealing member when the first sealing member is structural adhesive, the first sealing member can not only ensure the sealing between the first rigid sleeve and the first part of the box body, but also realize the first rigidity.
  • the reliable connection between the sleeve and the first part of the box body further improves the reliability of the box body as a whole.
  • the structural adhesive is also convenient to be coated on the first rigid sleeve or the first part of the box, and the process is relatively simple, which is conducive to improving the manufacturing efficiency of the box and the battery.
  • a filling layer is provided between the second flange structure and the surface of the first part of the box body that is located at the edge of the first hole and faces the outside of the box body.
  • the filling layer can firstly be used to absorb the manufacturing tolerances of the first rigid sleeve, the second rigid sleeve and the first part of the box body, so as to avoid the gap between the first rigid sleeve, the second rigid sleeve and the first part of the box body. Due to the influence of the manufacturing process, a gap is formed between them, thereby improving the overall sealing performance of the box and other related performances.
  • the shapes of the first flange structure and the second flange structure are both polygonal.
  • the polygonal first flange structure and the second flange structure can provide a locking structure for the installation tool of the first rigid sleeve and the second rigid sleeve, so that the installation tool can be locked on the first rigid sleeve.
  • the flange structure and the second flange structure realize the mutual connection and installation between the first rigid sleeve and the second rigid sleeve.
  • the shape of the first flange structure is different from the shape of the second flange structure.
  • the shape of the first flange structure is different from the shape of the second flange structure, which can play a role in error prevention, that is, the shape of the first flange structure and the second flange structure can be distinguished
  • the first rigid sleeve and the second rigid sleeve are provided to facilitate the correct installation of the first rigid sleeve and the second rigid sleeve on the first part of the box body.
  • the first hole is located in the middle area of the first partial box.
  • the first hole is located in the middle area of the first partial box body.
  • the rigid structural member and the installation structural member are also located in the middle area of the box body. Through the installation structural member and the rigid structural member located in the middle area of the box body, the The box body and the battery therein are installed in the electrical device.
  • the first part of the box body is made of composite material, and the rigid structural member is made of metal material.
  • the first part of the box is made of composite material, which has the characteristics of light weight and relatively high strength. While ensuring the box has a certain strength and reliability, the overall quality of the box can be reduced , to facilitate the installation and replacement of the battery in the electrical device.
  • the rigid structural member is a metal material, which has stronger wear resistance than the first part of the box body, and has certain rigidity and strength. Therefore, metal materials can be suitably used as rigid structural parts in the embodiments of the present application, so as to improve the installation stability of the box body and the battery in the electrical device.
  • the box body further includes: a second part of the box body and a beam, the second part of the box body and the first part of the box body are interlocked to form an accommodating chamber for accommodating the battery cells, and the beam is arranged on the second part of the box body. Part of the box body, and the installation structure is arranged on the beam.
  • the mounting structure is set by using the beam in the second part of the box. On the one hand, it will not occupy other spaces in the box for accommodating battery cells, and the energy density of the battery will be improved. On the other hand, The installation stability of the beam in the box is relatively high, therefore, the installation of the installation structure in the box can also improve the installation stability of the installation structure in the box.
  • a battery including: at least one battery cell, and the box body in the first aspect or any possible implementation manner of the first aspect, where the box body is used to accommodate the at least one battery cell.
  • an electric device including: the battery in the second aspect, where the battery is used to provide electric energy to the electric device.
  • a method for preparing a battery including: providing at least one battery cell; providing a box, the box includes: a first part of the box, provided with a first hole; a mounting structure, located in the box, and Corresponding to the first hole, the installation structure is used to install the box body to the electrical device through the first hole; wherein, the edge of the first hole is provided with a rigid structure, and the rigid structure is in contact with the installation structure to prevent The installation structure is in contact with the first part of the box; at least one battery cell is accommodated in the box.
  • a device for preparing a battery includes: providing a module for providing at least one battery cell and a box body; wherein, the box body includes: a first part of the box body, provided with a first hole; In the box, and corresponding to the first hole, the installation structure is used to install the box to the electrical device through the first hole; wherein, the edge of the first hole is provided with a rigid structure, and the rigid structure is in contact with the installation structure. connected to prevent the installation structure from contacting the first part of the box; the installation module is used to accommodate the battery cells in the box.
  • the box body is provided with an installation structural member corresponding to the first hole in the first part of the box body, and the box body can be installed to the electrical device through the first hole.
  • the edge of the first hole is also provided with a rigid structural member, and the rigid structural member abuts against the installation structural member, which can prevent the installation structural member from causing wear to the position at the edge of the first hole in the first part of the box, thereby Problems such as the rigidity and strength reduction of the first part of the box body caused by the wear and tear are prevented.
  • Fig. 1 is a schematic structural view of a vehicle disclosed in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of a battery disclosed in an embodiment of the present application.
  • Fig. 3 is a schematic structural view of a battery cell disclosed in an embodiment of the present application.
  • Fig. 4 is a three-dimensional exploded schematic diagram of a box disclosed in an embodiment of the present application.
  • Fig. 5 is a schematic sectional view along A-A' direction among Fig. 4;
  • Fig. 6 is a schematic cross-sectional view of another box disclosed by an embodiment of the present application.
  • Fig. 7 is a schematic cross-sectional view of another box disclosed by an embodiment of the present application.
  • Fig. 8 is a schematic cross-sectional view of another box disclosed by an embodiment of the present application.
  • Fig. 9 is a schematic cross-sectional view of another box disclosed by an embodiment of the present application.
  • Fig. 10 is a schematic cross-sectional view of another box disclosed by an embodiment of the present application.
  • Fig. 11 is a three-dimensional schematic diagram of the first rigid sleeve and the second rigid sleeve disclosed in an embodiment of the present application;
  • Fig. 12 is a schematic diagram of a three-dimensional structure of a box disclosed in an embodiment of the present application.
  • Fig. 13 is a three-dimensional exploded schematic view of the box in the embodiment shown in Fig. 12;
  • Fig. 14 is a schematic flowchart of a method for preparing a battery disclosed in an embodiment of the present application.
  • Fig. 15 is a schematic block diagram of a device for preparing a battery disclosed in an embodiment of the present application.
  • a battery refers to a physical module including one or more battery cells to provide electrical energy.
  • the battery mentioned in this application may include a battery module or a battery pack, and the like.
  • Batteries generally include a case for enclosing one or more battery cells. The box can prevent liquid or other foreign objects from affecting the charging or discharging of the battery cells.
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, which are not limited in this embodiment of the present application.
  • the battery cell can be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which are not limited in this embodiment of the present application.
  • the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator.
  • a battery cell works primarily by moving metal ions between the positive and negative plates.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer.
  • the current collector coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector without the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer.
  • the current collector coated with the negative electrode active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon.
  • the number of positive pole tabs is multiple and stacked together, and the number of negative pole tabs is multiple and stacked together.
  • the material of the diaphragm can be polypropylene (Polypropylene, PP) or polyethylene (Polyethylene, PE).
  • the electrode assembly may be a wound structure or a laminated structure, which is not limited in the embodiment of the present application.
  • the movement of the electric device such as the vehicle will cause a certain impact on the battery. If the stability of the battery is not good, the impact will have an adverse effect on the performance of the battery. and may cause security issues.
  • mutually cooperating locking structures may be provided on the battery box and the frame of the electric vehicle, so as to realize the fixing of the battery on the frame.
  • a mounting structure may also be provided in the battery box, through which the battery can be mounted on the vehicle frame.
  • the installation structure can be arranged inside the box body, and a space can be reserved inside the installation structure, so that structural parts such as bolts on the frame can be inserted into the inside of the installation structure, so that the battery can be installed in the vehicle. Mount on rack.
  • the installation structure needs to abut against the wall of the box, and a closed space can be formed between the installation structure and the box.
  • a closed space can be formed between the installation structure and the box.
  • the vibration of the structural parts such as bolts on the frame will drive the vibration of the installation structural part, so that the installation structural part directly abutting against the wall of the box body will cause damage to the wall of the box body. wear and tear.
  • the wear will affect the rigidity and strength of the box, and then affect the stability of the battery mounted on the frame; on the other hand, the wear will also affect the sealing of the box , which in turn affects the safety performance of the battery cells inside the box. Therefore, in this embodiment, the installation stability and sealing performance of the battery case in the vehicle are not high, which may bring certain potential safety hazards.
  • the present application provides a battery box, which includes a rigid structural member in addition to the above-mentioned mounting structural member for mounting the battery on the vehicle.
  • the rigid structural member and the installation structural member abut against each other, which can prevent the installation structural member from directly contacting the wall of the box body, thereby preventing the installation structural member from causing wear to the wall of the box body.
  • the stability of the battery fixed on the electric device can be improved.
  • batteries such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spaceships, etc.
  • FIG. 1 it is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application.
  • the vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or Extended range cars, etc.
  • a motor 11 , a controller 12 and a battery 10 can be arranged inside the vehicle 1 , and the controller 12 is used to control the battery 10 to supply power to the motor 11 .
  • the battery 10 may be provided at the bottom or front or rear of the vehicle 1 .
  • the battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as an operating power source of the vehicle 1 , for a circuit system of the vehicle 1 , for example, for starting, navigating and running power requirements of the vehicle 1 .
  • the battery 10 can not only be used as an operating power source for the vehicle 1 , but can also be used as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel or in parallel, and the hybrid connection refers to a mixture of series and parallel connections. Batteries can also be called battery packs.
  • a plurality of battery cells can be connected in series, parallel or mixed to form a battery module, and then a plurality of battery modules can be connected in series, parallel or mixed to form a battery. That is to say, multiple battery cells can directly form a battery, or form a battery module first, and then form a battery from the battery module.
  • the battery 10 may include a plurality of battery cells 20 .
  • the battery 10 may also include a box body (or called a cover body), and the inside of the box body is a hollow structure, and a plurality of battery cells 20 are accommodated in the box body.
  • the box may include two parts, which are referred to here as a first part of the box 110 and a second part of the box 120 , and the first part of the box 110 and the second part of the box 120 are fastened together.
  • the shapes of the first part of the case 110 and the second part of the case 120 may be determined according to the combined shape of the plurality of battery cells 20 , and each of the first part of the case 110 and the second part of the case 120 may have an opening.
  • the first part of the box body 110 and the second part of the box body 120 can be hollow cuboids and only one face is an opening face, the opening of the first part of the box body 110 and the opening of the second part of the box body 120 are arranged oppositely, and the first part The box 110 and the second part of the box 120 are interlocked to form a box with a closed chamber.
  • a plurality of battery cells 20 are connected in parallel or connected in series or combined in parallel and placed in the box formed by fastening the first part of the box body 110 and the second part of the box body 120 .
  • the battery 10 may also include other structures, which will not be repeated here.
  • the battery 10 may also include a confluence part, which is used to realize electrical connection between a plurality of battery cells 20 , such as parallel connection, series connection or mixed connection.
  • the current-combining component can realize the electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20 .
  • the bus member may be fixed to the electrode terminal of the battery cell 20 by welding. The electric energy of the plurality of battery cells 20 can be further drawn out through the box through the conductive mechanism.
  • the conduction means can also belong to the current-collecting part.
  • the number of battery cells 20 can be set to any value. Multiple battery cells 20 can be connected in series, in parallel or in parallel to achieve greater capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, for the convenience of installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 constitutes a battery module. The number of battery cells 20 included in each group of battery cells 20 is not limited, and can be set according to requirements.
  • FIG. 3 is a schematic structural diagram of a battery cell 20 according to an embodiment of the present application.
  • the battery cell 20 includes one or more electrode assemblies 22 , a casing 211 and a cover plate 212 .
  • the walls of the casing 211 and the cover plate 212 are both referred to as walls of the battery cell 20 .
  • the housing 211 depends on the combined shape of one or more electrode assemblies 22.
  • the housing 211 can be a hollow cuboid or cube or cylinder, and one of the surfaces of the housing 211 has an opening so that one or more electrodes Assembly 22 may be placed within housing 211 .
  • the housing 211 when the housing 211 is a hollow cuboid or cube, one of the planes of the housing 211 is an open surface, that is, the plane does not have a wall so that the inside and outside of the housing 211 communicate.
  • the casing 211 can be a hollow cylinder, the end surface of the casing 211 is an open surface, that is, the end surface does not have a wall so that the inside and outside of the casing 211 communicate.
  • the cover plate 212 covers the opening and is connected with the casing 211 to form a closed cavity for placing the electrode assembly 22 .
  • the casing 211 is filled with electrolyte, such as electrolytic solution.
  • the battery cell 20 may further include two electrode terminals 214 , and the two electrode terminals 214 may be disposed on the cover plate 212 .
  • the cover plate 212 is usually in the shape of a flat plate, and two electrode terminals 214 are fixed on the flat plate surface of the cover plate 212, and the two electrode terminals 214 are positive electrode terminals 214a and negative electrode terminals 214b respectively.
  • Each electrode terminal 214 is respectively provided with a connecting member 23 , or also referred to as a current collecting member 23 , which is located between the cover plate 212 and the electrode assembly 22 for electrically connecting the electrode assembly 22 and the electrode terminal 214 .
  • each electrode assembly 22 has a first tab 221a and a second tab 222a.
  • the polarities of the first tab 221a and the second tab 222a are opposite.
  • the first tab 221a is a positive tab
  • the second tab 222a is a negative tab.
  • the first tabs 221a of one or more electrode assemblies 22 are connected to one electrode terminal through one connection member 23
  • the second tabs 222a of one or more electrode assemblies 22 are connected to another electrode terminal through another connection member 23 .
  • the positive electrode terminal 214 a is connected to the positive electrode tab through one connection member 23
  • the negative electrode terminal 214 b is connected to the negative electrode tab through the other connection member 23 .
  • the electrode assembly 22 can be arranged as a single one or in multiples. As shown in FIG. 3 , four independent electrode assemblies 22 are arranged in the battery cell 20 .
  • a pressure relief mechanism 213 may also be provided on one wall of the battery cell 20 .
  • the pressure relief mechanism 213 is activated to release the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold.
  • the pressure relief mechanism 213 and the electrode terminal 214 are disposed on different walls of the battery cell 20 .
  • the electrode terminal 214 of the battery cell 20 may be disposed on the top wall of the battery cell 20 , that is, the cover plate 212 .
  • the pressure relief mechanism 213 is disposed on another wall of the battery cell 20 that is different from the top wall, for example, the pressure relief mechanism 213 is disposed on the bottom wall 215 opposite to the top wall.
  • the bottom wall 215 is separated from the casing 211 in FIG. 3 , but this does not limit the bottom side of the casing 211 to have an opening.
  • the pressure relief mechanism 213 and the electrode terminal 214 are disposed on the same wall of the battery cell 20 .
  • both the electrode terminals 214 and the pressure relief mechanism 213 can be disposed on the top wall of the battery cell 20 , that is, the cover plate 212 .
  • the above-mentioned pressure relief mechanism 213 may be a part of the wall where it is located, or may be a separate structure from the wall where it is located, and be fixed on the wall where it is located by, for example, welding.
  • the pressure relief mechanism 213 when the pressure relief mechanism 213 is a part of the bottom wall 215, the pressure relief mechanism 213 can be formed by setting a notch on the bottom wall 215, and the corresponding bottom of the notch
  • the thickness of the wall 215 is smaller than the thickness of other areas of the pressure relief mechanism 213 except the notch.
  • the notch is the weakest position of the pressure relief mechanism 213 .
  • the pressure relief mechanism 213 can A crack occurs at the notch, which leads to communication between the inside and outside of the shell 211 , and the gas pressure and temperature are released outward through the crack of the pressure relief mechanism 213 , thereby preventing the battery cell 20 from exploding.
  • the pressure relief mechanism 213 may be various possible pressure relief mechanisms, which is not limited in this embodiment of the present application.
  • the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold; and/or, the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism configured to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.
  • FIG. 4 is a three-dimensional exploded schematic view of a box 100 provided in the embodiment of the present application
  • FIG. 5 is a schematic cross-sectional view along the direction A-A' in FIG. 4 .
  • the box body 100 includes: a first part of the box body 110, provided with a first hole 111; an installation structure 130, located in the box body 100, and corresponding to the first hole 111, the installation structure The member 130 is used to install the box body 100 to the electrical device through the first hole 111; wherein, the edge of the first hole 111 is provided with a rigid structural member 140, and the rigid structural member 140 is in contact with the installation structural member 130 to prevent the The installation structure 130 is in contact with the first part of the box body 110 .
  • the first partial box body 110 is a partial box body in the box body 100 .
  • the first part of the box 110 may be a cover structure, and the first part of the box 110 may be one of the walls of the box 100 .
  • the first partial box body 110 may also be a hollow cuboid structure with an open surface as shown in FIG. 2 .
  • the embodiment of the present application does not limit the specific shape and size of the first part of the box body 110 , it is only intended to form a three-dimensional structure with a closed chamber together with other parts of the box body 200 .
  • the first part of the box body 110 is provided with a first hole 111, and the first hole 111 is provided corresponding to the installation structure 130 inside the box body 100, so that the installation structure 130 can pass the first hole 111 to install the box body.
  • 100 is installed to the electrical device where the battery 10 is located.
  • a structural member that cooperates with the installation structural member 130 is provided in the electrical device, and any one of the structural members that the installation structural member 130 cooperates with can pass through the first hole 111 to realize mutual interaction between the two. connect.
  • the mounting structure 130 is a base with a threaded structure, and the electrical device is provided with bolts that cooperate with the base; or, for another example, the mounting structure 130 is a bolt, and the electrical device is provided with a base; the bolts pass through The first hole 111 is connected to the base to realize the mutual connection between the two.
  • the mounting structure 130 and its matching structure may also be other types of structures, and it only needs to be able to achieve a stable connection between the two, which is not specifically limited in this embodiment of the present application.
  • the mounting structure 130 can be used to mount the box 100 to an electrical device.
  • the installation structure 130 can be used to mount the box body 100 to the vehicle frame of the vehicle 1 to realize the fixed installation of the battery 10 in the vehicle 1.
  • the box body 100 is mounted on the vehicle frame of the vehicle 1, the box body 100 in the direction of gravity of the frame.
  • the installation structure 130 can also be used to implement other installation forms of the box body 100 in the electrical device other than mounting, so as to realize the stable installation of the box body 100 in the electrical device. , which is not specifically limited in this embodiment of the present application.
  • a rigid structural member 140 is also provided on the edge of the first hole 111 of the first part of the box body 110 .
  • the rigid structural member 140 can be a ring-shaped structural member, the hollow area in the middle corresponds to the first hole 111, and the rigid structural member 140 abuts against the part of the first part of the box body 110 at the edge of the first hole 111 and the installation structural member 130 , so as to prevent the mounting structure 130 from contacting the edge of the first part of the box body 110 located at the first hole 111 .
  • the box body 100 is provided with a mounting structure 130, which is arranged corresponding to the first hole 111 in the first part of the box body 110, and the box body can be placed through the first hole 111.
  • 100 is installed to the electrical device.
  • the edge of the first hole 111 is also provided with a rigid structural member 140, and the rigid structural member 140 abuts against the installation structural member 130, which can prevent the installation structural member 130 from being located in the first hole 111 in the first part of the box body 110.
  • the parts of the edges cause wear, so as to prevent problems such as the reduction of rigidity and strength of the first part of the box body 110 caused by the wear.
  • the movement of the electric device such as a vehicle can be prevented from affecting the first part of the box body 110, thereby improving the installation stability of the box body 100 and the battery 10 in the electric device, which is beneficial
  • the safety performance and comprehensive performance of the battery 10 are improved to facilitate the popularization and use of the battery 10 in electric devices.
  • the rigid structural member 140 in the embodiment of the present application has greater rigidity and strength , which has higher stability and reliability, can more effectively withstand the force exerted by the mounting structure 130 on it, and has less wear and tear.
  • the rigid structure 140 is arranged between the first part of the box body 110 and the installation structure 130, which can improve the connection strength between the first part of the box 110 and the installation structure 130.
  • the first part of the box body 110 may be a composite material, such as: sheet molding compound (sheet molding compound, SMC), pre-press material molding (prepreg compression molding, PCM) composite material, high pressure Resin transfer molding (high pressure resin transfer molding, HP-RTM) composite materials and so on. It has the characteristics of light weight and relatively high strength. While ensuring the strength and reliability of the box body 100, it can reduce the overall mass of the box body 100 and facilitate the installation and replacement of the battery 10 in the electrical device.
  • sheet molding compound sheet molding compound, SMC
  • pre-press material molding pre-press material molding
  • HP-RTM high pressure resin transfer molding
  • the rigid structural member 140 may be a metal material, for example, a steel material, a stainless steel material, an aluminum alloy material, a copper material, and the like. Compared with the first part of the box body 110 , the rigid structural member 140 may have stronger wear resistance, and have certain rigidity and strength. Therefore, the metal material can be suitably used as the rigid structural member 140 in the embodiment of the present application, so as to improve the installation stability of the box 100 and the battery 10 in the electrical device.
  • the rigid structural member 140 may directly abut against the first part of the box body 110 .
  • the rigid structural member 140 may directly abut against a portion of the first partial box 110 at the edge of the first hole 111 .
  • the tightness between the rigid structural member 140 and the first part of the box body 110 is poor, which will affect the safety performance of electrical components such as the battery cells 20 inside the box body 100 .
  • the rigid structure 140 and the first part of the box body 110 may abut against each other through the first sealing member 151 to ensure that the rigid structure 140 and the first part of the box body Tightness between 110.
  • Fig. 6 shows a schematic cross-sectional view of another box body 100 provided by the embodiment of the present application.
  • the first seal 151 is disposed between the rigid structure 140 and the first partial box 110 .
  • the first sealing member 151 can be an annular structure, which is adapted to the shape of the first hole 111 in the first part of the box body 110, and is arranged between the rigid structure 140 and the first part of the box body 110 at the second between the edges of a hole 111 .
  • the first sealing member 151 connects the rigid structural member 140 and the first partial box body 110 at the edge of the first hole 111 to ensure the sealing between the rigid structural member 140 and the first partial box body 110 performance, thereby improving the overall sealing performance of the box body 100 and improving the safety performance of electrical components such as the battery cells 20 inside the box body 100 .
  • the first sealing member 151 includes but is not limited to: structural glue or rubber material.
  • the first sealing member 151 may also be any other material used to realize the sealing function in the related art, which is not specifically limited in this embodiment of the present application.
  • the first sealing member 151 can not only ensure the tightness between the rigid structural member 140 and the first part of the box body 110, but also realize the tightness between the rigid structural member 140 and the first part of the box body.
  • the reliable connection between the bodies 110 further improves the overall reliability of the box body 100 .
  • the structural glue is also convenient to be coated on the rigid structural member 140 or the first part of the box body 110 , and the process is relatively simple, which is beneficial to improving the manufacturing efficiency of the box body 100 and the battery 10 .
  • the thickness of the first sealing member 151 between the rigid structure 140 and the first part of the box body 110 also needs to be controlled within an appropriate range.
  • the thickness of the first sealing member 151 is between 0.2mm and 0.3mm, so that the first sealing member 151 can have better mechanical properties, and further ensure and optimize the connection between the rigid structure 140 and the first part of the box. Reliable connection between bodies 110.
  • the sealing and even reliable connection between the rigid structural member 140 and the first part of the box body 110 can be realized through the first sealing member 151 .
  • the rigid structure 140 and the installation structure 130 may also abut against each other through the second seal 152 to ensure the sealing between the rigid structure 140 and the installation structure 130 .
  • the rigid structure 140 may also directly abut against the installation structure 130 .
  • Fig. 7 shows a schematic cross-sectional view of another box body 100 provided by the embodiment of the present application.
  • the second sealing member 152 is disposed between the rigid structure 140 and the mounting structure 130 .
  • the second sealing member 152 may be an annular structure, which is adapted to the shape of the first hole 111 in the first partial box 110 , and is disposed on the side of the installation structure 130 facing the rigid structure 140 .
  • the second sealing member 152 abuts between the rigid structural member 140 and the installation structural member 130 to ensure the sealing between the rigid structural member 140 and the installation structural member 130 , thereby lifting the box body 100
  • the overall airtightness improves the safety performance of electrical components such as battery cells 20 inside the box body 100 .
  • the second sealing member 152 includes but is not limited to: rubber material or structural glue.
  • the second sealing member 152 may also be any other material used to realize the sealing function in the related art, which is not specifically limited in this embodiment of the present application.
  • the second sealing member 152 may be a rubber material, for example, the second sealing member 152 may be a rubber ring.
  • a groove can be formed on a side of the installation structure 130 facing the rigid structure 140 , and the groove can be used to accommodate the second sealing member 152 so as to install the second sealing member 152 on the installation structure 130 . It can be understood that, in this embodiment, the thickness of the second sealing member 152 needs to be greater than the depth of the groove, so that at least part of the second sealing member 152 is exposed to the groove, and at least part of the second sealing member 152 It can abut against the rigid structural member 130 .
  • the second sealing member 152 is made of rubber material, the second sealing member 152 can be easily installed in the installation structure 130 while having good sealing performance, and is easy to replace and maintain, thereby ensuring that the second sealing member 152
  • the seal 152 achieves a long-term and relatively reliable seal between the rigid structure 140 and the mounting structure 130 .
  • the first hole 111 is formed in the first part of the box body 110
  • the rigid structural member 140 is disposed on the edge of the first hole 111
  • the installation structural member 130 is also disposed corresponding to the first hole 111 .
  • the rigid structural member 140 can be directly or indirectly abutted against the installation structural member 130
  • the rigid structural member 140 can be directly or indirectly abutted against the first part of the box body 110, but there is a lack of reliable and firm interconnection between the three , or in other words, a more reliable and firm interconnection can be further realized among the three. Therefore, in the embodiment of the present application, the box body 100 further includes a fixing member 160 for fixing the first part of the box body 110 and the rigid structural member 140 to the installation structural member 130 so as to realize reliable connection of the three.
  • Fig. 8 shows a schematic cross-sectional view of another box body 100 provided by the embodiment of the present application.
  • the box body 100 further includes: a fixing piece 160, which is located outside the box body 100 and connected to the installation structure 130 through the first hole 111.
  • the fixing piece 160 is used to attach the second A portion of the box body 110 and the rigid structure 140 are fixed to the mounting structure 130 .
  • the fixing member 160 can be located on the side of the first part of the box body 110 facing the outside of the box body 100 , and the fixing piece 160 can pass through the first hole 111 from the outside of the box body 100 to the A part of the box 110 and the rigid structure 140 are fixed to the installation structure 130 to realize reliable connection among the first part of the box 110 , the rigid structure 140 and the installation structure 130 .
  • the fixing member 160 can be a screw structure with a flange at one end, the flange is attached to the first part of the box body 110 from the outside of the box body 100, and the screw is inserted through the first hole 111 In the installation structure 130 , both of them can have a thread structure that cooperates with each other to realize the fixed connection of the two.
  • the flange acts on the first part of the box 110 and the rigid structure 140 so that the first part of the box 110 and the rigid structure 140 can be tightly attached to the installation structure 130 .
  • a space may be reserved in the fixing member 160, and the space communicates with the internal space of the installation structural member 130, so that the structural members in the electrical device can enter the space and realize the installation and installation. Interconnection of structural members 130 .
  • the fixing member 160 is directly in contact with the first part of the box body 110.
  • the vibration of the structural parts in the electrical device will drive the installation structural member 130 and the fixing member. 160 vibrates, so that the fixing member 160 causes wear to the first part of the box body 110 .
  • the rigid structural member 140 in addition to abutting against the mounting structure 130, the rigid structural member 140 also abuts against the fixing member 160, so as to prevent the fixing member 160 from contacting the first part of the box body 110, thereby preventing The fixing member 160 causes wear to the first part of the housing 110 .
  • Fig. 9 shows a schematic cross-sectional view of another box body 100 provided by the embodiment of the present application.
  • the rigid structural member 140 can cover the side wall of the first hole 111 in the first part of the box body 110, and the first part of the box body 110 is located at the edge of the first hole 111 and faces The inner and outer surfaces of the box body 100 .
  • the first part of the rigid structural member 140 can cover the surface of the first part of the box body 110 located at the edge of the first hole 111 and facing the inside of the box body 100, and the first part of the rigid structural member can be directly or indirectly abut against the first part of the box body 110 and the installation structure 130 to prevent the installation structure 130 from causing wear to the first part of the box body 110 .
  • the second part of the rigid structure 140 can cover the surface of the first part of the box 110 located at the edge of the first hole 111 and facing the outside of the box 100 , and the second part of the rigid structure can directly or indirectly abut against
  • the first part of the box body 110 and the fixing part 160 are used to prevent the fixing part 160 from causing wear to the first part of the box body 110 .
  • the third part of the rigid structure 140 can cover the side wall of the first hole 111 in the first part of the box body 110, and the third part of the rigid structure can be used to connect the first part of the rigid structure and the second part of the rigid structure. parts, so that the entire rigid structural part 140 can be more stably disposed on the edge of the first hole 111 , forming a reliable and stable connection with the first part of the box body 110 .
  • the third part of the rigid structural member is arranged between the fixing member 160 and the installation structural member 130, which can provide a rigid connection between the fixing member 160 and the installation structural member 130, and bear the tightening between the fixing member 160 and the installation structural member 130.
  • the interconnection between the first part of the box body 110, the rigid structure 140 and the installation structure 130 can be made more stable, and then the lifting box 100 can be installed on the user through the installation structure 130.
  • the stability of the installation of the electrical device is the reason for the installation of the electrical device.
  • a first seal 151 may be provided between the above-mentioned first part of the rigid structure and the surface of the first part of the box 110 facing the inside of the box 100, and/or A filling layer 153 may be provided between the second part of the rigid structural member and the surface of the first part of the box body 110 facing the outside of the box body 100 .
  • the first sealing member 151 is used to ensure the sealing between the first part of the rigid structural member and the surface of the first part of the box body 110 facing the inside of the box body 100 .
  • the filling layer 153 can firstly be used to absorb the manufacturing tolerance of the rigid structural member 140 and the first part of the box body 110, so as to avoid the formation of a gap between the rigid structural member 140 and the first part of the box body 110 due to the influence of the manufacturing process, thereby improving the overall performance of the box body 100. Sealing and other related properties.
  • the filling layer 153 can be a structural adhesive layer. In addition to being used for sealing, the structural adhesive layer can also be used to realize the connection between the second part of the rigid structure and the first part of the box body 110, so as to further improve the rigidity of the structure.
  • the filling layer 153 may be other filling materials, such as rubber, foam, etc., in addition to the structural adhesive layer, and the embodiment of the present application does not specifically limit the specific filling materials.
  • the rigid structural member 140 may also omit the third part in the rigid structural member 140 in other embodiments, that is, the rigid structural member 140 includes mutual The first part and the second part are separated, and the first part and the second part can be adhered to the surface of the first part of the box body 110 at the edge of the hole 111 and facing the inside and outside of the box body 100 by structural glue, respectively.
  • the installation stability of the rigid structural member 140 on the first part of the box body 110 is slightly poor, the amount of the rigid structural member 140 can be reduced, reducing the overall manufacturing cost of the rigid structural member 140 and the box body 100 .
  • the rigid structural member 140 may consist of two rigid sleeves configured to be connectable to each other, thereby facilitating rigid structural The installation of the member 140 at the edge of the first hole 111 in the first part of the box body 110.
  • Fig. 10 shows a schematic cross-sectional view of another box body 100 provided by the embodiment of the present application.
  • the rigid structure 140 may include a first rigid sleeve 141 and a second rigid sleeve 142
  • the first rigid sleeve 141 includes a first tubular structure 1411 and a first flange structure 1412
  • the first tubular structure is located on the sidewall of the first hole 111
  • the first flange structure 1412 covers the surface of the first part of the box body 110 located at the edge of the first hole 111 and facing the inside of the box body 100
  • the second rigid sleeve 142 includes a second tubular structure 1421 and a second flange structure 1422.
  • the second tubular structure 1421 is located on the side wall of the first hole 111 and is connected with the first tubular structure 1411.
  • the second flange The structure 1422 covers the surface of the first part of the box body 110 located at the edge of the first hole 111 and facing the outside of the box body 110 .
  • the shape and size of the two in the radial direction can be adapted to the first part of the first part of the box body 110.
  • the shape and size of the hole 111 For example, the size of the two in the radial direction may be slightly smaller than the diameter of the first hole 111 , so that the two can be installed in the first hole 111 and located on the sidewall of the first hole 111 .
  • the dimensions of the first tubular structure 1411 and the second tubular structure 1421 in the axial direction can be adapted to the thickness of the first partial box body 110 .
  • the dimensions of the first tubular structure 1411 and the second tubular structure 1421 in the axial direction are slightly larger than the thickness of the first partial box body 110 .
  • first flange structure 1412 is connected to the first tubular structure 1411 , is located at one end of the first tubular structure 1411 toward the interior of the box body 100 , and extends along the surface of the first part of the box body 110 toward the interior of the box body 100 .
  • the first flange structure 1412 may directly abut against the surface of the first partial box body 110 located at the edge of the first hole 111 and facing the inside of the box body 100 , or, as shown in FIG.
  • the first flange structure 1412 may pass through The first sealing member 151 abuts against the first part of the box body 110 , specifically, the first flange structure 1412 abuts against a surface located at the edge of the first hole 111 and facing inside the box body 100 through the first sealing member 151 .
  • the first flange structure 1412 can also abut against the installation structure 130 .
  • the first flange structure 1412 may also directly abut against the installation structure 130 , or, the first flange structure 1412 may also abut against the installation structure 130 through the second sealing member 152 .
  • the width of the first sealing member 151 located between the first flange structure 1412 and the first partial box body 110 may substantially cover the width of the first flange structure 1412 .
  • the width of the first sealing member 151 and the first flange structure 1412 can be understood as the size of the first sealing member 151 and the first flange structure 1412 in the first direction, and the first direction is parallel to the first hole 111
  • the radial direction of , or in other words, the first direction is parallel to the radial direction of the first tubular structure 1411 .
  • the space of the first flange structure 1412 can be used to a large extent to set up enough first sealing members 151 to achieve a more reliable sealing and connection between the first flange structure 1412 and the first part of the box body 110 .
  • the width of the first sealing member 151 may be greater than or equal to 15 mm, so as to ensure a relatively reliable sealing and connection between the first flange structure 1412 and the first partial box body 110 .
  • the thickness of the first sealing member 151 can be between 0.2mm and 0.3mm, so that the first sealing member 151 can have better mechanical properties, so as to ensure and optimize the contact between the first rigid sleeve 141 and Reliable connection between the first part of the box body 110.
  • the second flange structure 1422 is connected to the second tubular structure 1421 and is located at one end of the second tubular structure 1421 facing the outside of the box body 100 , and along the side of the first part of the box body 110 facing the outside of the box body 100 .
  • the second flange structure 1422 may directly abut against the surface of the first part of the box body 110 located at the edge of the first hole 111 and facing the outside of the box body 100 , or, as shown in FIG.
  • the second flange structure 1422 may pass through The filling layer 153 abuts against the surface of the first part of the box body 110 located at the edge of the first hole 111 and facing the outside of the box body 100 , in other words, the second flange structure 1422 and the first part of the box body 110 are located at the edge of the first hole 111 and face A filling layer 153 is provided between the outer surfaces of the box body 100 .
  • the filling layer 153 can first be used to absorb the manufacturing tolerances of the first rigid sleeve 141, the second rigid sleeve 142 and the first part of the box body 110, so as to avoid the first rigid sleeve 141, A gap is formed between the second rigid sleeve 142 and the first part of the box body 110 due to the influence of the manufacturing process, thereby improving the overall sealing performance of the box body 100 and other related performances.
  • the filling layer 153 can be a structural adhesive layer.
  • the structural adhesive layer can also be used to realize the connection between the second rigid sleeve 142 and the first part of the box body 110, so as to further improve the rigidity of the structural member. 140 for installation stability on the first part of the box body 110.
  • the thickness of the filling layer 153 between the second flange structure 1422 and the first part of the box body 110 can be greater than the thickness of the first sealing member 151, so that the thickness of the filling layer 153 can be fully absorbed.
  • Manufacturing tolerances of the first rigid sleeve 141 , the second rigid sleeve 142 and the first part of the box body 110 ensure the performance of the box body 100 .
  • the second tubular structure 1421 covers at least part of the sidewall of the first hole 111
  • the first tubular structure 1411 covers at least part of the second tubular structure 1421 .
  • the first tubular structure 1411 is set away from the side wall of the first hole 111, and the length of the first flange structure 1412 connected to the first tubular structure 1411 in the radial direction is longer, so that the area of the first flange structure 1412 can be increased and
  • the contact area between the first flange structure 1412 and the installation structure 130 ensures the connection reliability between the first rigid sleeve 141 and the installation structure 130 .
  • the second sealing member 152 can be conveniently arranged between the first flange structure 1412 and the mounting structure 130, and the connection between the second sealing member 152 and the first flange structure 1412 and the mounting structure can also be improved.
  • the contact area of the member 130 thereby improving the sealing performance of the second sealing member 152 between the first flange structure 1412 and the mounting structure 130 .
  • the first rigid sleeve 141 can be firstly installed in the first hole 111, wherein the first tubular structure 1411 can cover at least part of the side wall of the first hole 111, and then, the second rigid sleeve 141 can be placed
  • the sleeve 142 and the first rigid sleeve 141 are connected to each other, and the installation process between the two is relatively simple, and can cooperate well with the first hole 111 .
  • first tubular structure 1411 wraps at least part of the side wall of the first hole 111
  • second tubular structure 1421 wraps at least part of the first tubular structure 1411
  • the mutual interaction between the first tubular structure 1411 and the second tubular structure 1421 can also be realized. Fittingly connected and arranged on the side wall of the first hole 111 .
  • the first tubular structure 1411 and the second tubular structure 1421 are configured to be connected to each other through threads.
  • This embodiment has a simple process and is easy to implement, and can ensure a stable and reliable connection between the first rigid sleeve 141 and the second rigid sleeve 142 .
  • first tubular structure 1411 and the second tubular structure 1421 can also be connected to each other through other mechanical connection methods in the related art besides being connected with each other through threads, for example, through structural glue, buckle, concave-convex fit, etc.
  • the embodiment of the present application does not specifically limit the specific mechanical connection manner.
  • FIG. 11 shows a perspective view of the above-mentioned first rigid sleeve 141 and second rigid sleeve 142 .
  • the first tubular structure 1411 of the first rigid sleeve 141 is provided with external threads, correspondingly, the second The second tubular structure 1421 of the two rigid sleeves 142 is provided with internal threads, so that the two can be connected with each other.
  • a limiting step 1413 is provided on the first flange structure 1412 of the first rigid sleeve 141 , and the limiting step 1413 is used to accommodate the above-mentioned first sealing member 151 .
  • the height of the limiting step 1413 can be controlled within a certain range, so that the thickness of the first sealing member 151 accommodated in the limiting step 1413 can also be controlled within a certain range, for example , within 0.2 mm to 0.3 mm, so as to ensure that the first sealing member 151 has better mechanical properties.
  • the width of the limiting step 1413 can also basically cover the width of the first flange structure 1412, so as to utilize the space of the first flange structure 1412 to a large extent, so that the first sealing member accommodated in the limiting step 1413
  • the width of 151 is wider, so as to ensure that the first sealing member 151 has better sealing performance.
  • a limiting step 1413 is provided on the first flange structure 1412 of the first rigid sleeve 141 to control the size of the first sealing member 151 accommodated in the limiting step 1413 .
  • This embodiment is relatively simple and easy to implement, and can also enable the first sealing member 151 to have good performance, thereby improving the overall manufacturing efficiency and performance of the box body 100 .
  • the shapes of the first flange structure 1412 of the first rigid sleeve 141 and the second flange structure 1422 of the second rigid sleeve 142 are polygonal.
  • the polygonal first flange structure 1412 and the second flange structure 1422 can provide a locking structure for the installation tool of the first rigid sleeve 141 and the second rigid sleeve 142, so that the installation tool can be locked on the first flange structure 1412 and the second flange structure 1422, and realize the mutual connection and installation between the first rigid sleeve 141 and the second rigid sleeve 142.
  • the first flange structure 1412 and/or the second flange structure 1422 are rotated by rotating the installation tool to drive the first flange structure 1412 and/or the second flange structure 1422
  • a tubular structure 1411 and/or a second tubular structure 1422 rotate, so that the first tubular structure 1411 and the second tubular structure 1422 are connected to each other by threads, so as to realize the mutual connection between the first rigid sleeve 141 and the second rigid sleeve 142 and install.
  • the shape of the first flange structure 1412 is different from the shape of the second flange structure 1422 .
  • the shape of the first flange structure 1412 is a polygon with N straight sides
  • the shape of the second flange structure 1422 is a polygon with M sides, wherein M and N are two unequal positive integers.
  • the two polygons have different shapes.
  • the shapes of the first flange structure 1412 and the second flange structure 1422 are both dodecagonal, but the shape of the first flange structure 1412 is a regular dodecagon.
  • the shape of the second flange structure 1422 is not a regular dodecagon.
  • the appearance of the first flange structure 1412 is different from that of the second flange structure 1422, which can play the function of error prevention, that is, through the first flange structure 1412 and the second flange structure 1422
  • the shape of the first rigid sleeve 141 and the second rigid sleeve 142 can be distinguished, which is conducive to the correct installation of the first rigid sleeve 141 and the second rigid sleeve 142 on the first part of the box body 110 .
  • the first hole 111 may be disposed in the middle area of the first partial box body 110 .
  • the rigid structural member 140 and the installation structural member 130 are also correspondingly located in the middle area of the box body 100, through the installation structural member 130 and the rigid structural member 140 located in the middle area of the box body 100, more To balance and stably install the box body 100 and the battery 10 therein on the electrical device.
  • one or more rigid structural members 140 may be included in the box body 100.
  • the box body 100 includes a plurality of rigid structural members 140, the box body 100 and the battery 10 therein can be further lifted in the electrical device. installation stability.
  • FIG. 12 shows a schematic three-dimensional structural view of the box body 100 provided by the embodiment of the present application.
  • FIG. 13 shows a three-dimensional exploded view of the box 100 in the embodiment shown in FIG. 12 .
  • the box body 100 includes two rigid structural members 140 , and the two rigid structural members 140 may be distributed in the middle area of the first partial box body 110 .
  • the first part of the box 110 can be approximately regarded as a plate-like structure, and the two rigid structural members 140 can be located on the central axis L1 of the first part of the box 110 in the length direction, and relative to the first part of the box 110 at The central axis L2 in the width direction is arranged symmetrically.
  • the two rigid structural members 140 are arranged symmetrically with respect to the central axis L1 of the first partial box body 110 in the length direction, or symmetrically arranged with respect to the diagonal line of the first partial box body 110 .
  • the box body 100 and the battery 10 therein can be more balanced and stably installed on the electrical device.
  • the box 100 may further include a second part of the box 120 , and the second part of the box 120 may be interlocked with the above-mentioned first part of the box 110 An accommodating cavity for accommodating the battery cell 20 is formed.
  • the second part of the box body 120 can be a hollow cuboid structure with an opening, and its size can cooperate with the first part of the box body 110 to form an airtight accommodating cavity, ensuring that the battery cells 20 and other components located in the accommodating cavity The overall performance of related structural components.
  • a crossbeam 121 may be provided in the second part of the box body 120 , and the crossbeam 121 may be used to separate the plurality of battery cells 20 from each other and improve the position of the plurality of battery cells 20 in the box body. Installation stability in 100.
  • the above-mentioned installation structure 130 may be disposed on the beam 121 .
  • the installation structure 130 can be disposed on the surface of the beam 121 opposite to the first part of the box 110 , so that the installation structure 130 corresponds to the first hole 111 in the first part of the box 110 .
  • the installation structure 130 is set by using the beam 121 in the second part of the box body 120. On the one hand, it does not occupy other spaces in the box body 100 for accommodating the battery cells 20, and the battery 10 is improved. Energy density, on the other hand, the installation stability of the beam 121 in the box body 100 is high, therefore, disposing the installation structure 130 on the beam 121 can also improve the installation stability of the installation structure 130 in the box 100 .
  • the rigid structure 140 may be the rigid structure 140 shown in FIGS. 10 to 11 , that is, includes a first rigid sleeve 141 and a second rigid sleeve 142 .
  • the second rigid sleeve 142 and the first rigid sleeve 141 cover up and down the area of the first partial box body 110 located at the edge of the first hole 111 .
  • the first rigid sleeve 141 and the second rigid sleeve 142 can be installed and fixed at the position of the first hole 111 through screw connection.
  • the first rigid sleeve 141 and the second rigid sleeve 142 are arranged corresponding to the installation structure 130 and the fixing member 160 .
  • the fixing part 160 can pass through the first rigid sleeve 141 and the second rigid sleeve 142 and be fixed to the mounting structure 130.
  • the first rigid sleeve 141 and the second rigid sleeve 142 bear the tightening force between the fixing member 160 and the installation structural member 130, so as to ensure the hard connection here, and make this part not loose. The stability of the installation in .
  • first rigid sleeve 141 and the second rigid sleeve 142 can also prevent the fixing member 160 and the installation structural member 130 from causing wear to the first part of the box body 110 , and improve the overall service life and reliability of the box body 100 .
  • a first sealing member 151 can be provided between the first rigid sleeve 141 and the first part of the box body 110 , and a sealing member 151 can be provided between the first rigid sleeve 141 and the installation structure 130 .
  • a filling layer 153 may be provided between the second sealing member 152 and the second rigid sleeve 142 and the first part of the box body 110 .
  • An embodiment of the present application also provides a battery 10 , the battery 10 may include: at least one battery cell 20 and the case 100 in the foregoing embodiments, the case 100 is used to accommodate the at least one battery cell 20 .
  • An embodiment of the present application also provides an electric device, which may include the battery 10 in the foregoing embodiments, and the battery 10 is used to provide electric energy to the electric device.
  • the electrical device may be a vehicle 1 , a ship or a spacecraft.
  • FIG. 14 shows a schematic flowchart of a method 300 for preparing a battery according to an embodiment of the present application. As shown in Fig. 14, the method 300 may include the following steps.
  • S301 Provide at least one battery cell 20 .
  • S302 Provide a box body 100 .
  • the box body 100 includes: a first part of the box body 110, which is provided with a first hole 111;
  • the first hole 111 installs the box body 100 to the electrical device; wherein, the edge of the first hole 111 is provided with a rigid structural member 140, and the rigid structural member 140 abuts with the installation structural member 130 to prevent the installation structural member 130 from contacting in the first part of the box body 110 .
  • S303 Accommodating at least one battery cell 20 in the case 100 .
  • FIG. 15 shows a schematic block diagram of an apparatus 400 for preparing a battery according to an embodiment of the present application.
  • the device 400 for preparing a battery may include: a providing module 401 and an installing module 402 .
  • the first providing module 401 is used to provide at least one battery cell 20 and the case 100 .
  • the box body 100 includes: a first part of the box body 110, which is provided with a first hole 111; A hole 111 installs the box body 100 to the electrical device; wherein, the edge of the first hole 111 is provided with a rigid structural member 140, and the rigid structural member 140 abuts with the installation structural member 130 to prevent the installation structural member 130 from contacting The first part of the box body 110 .
  • the installation module 402 is used for accommodating at least one battery cell 20 in the box body 100 .

Abstract

本申请提供一种电池的箱体、电池、用电装置、制备电池的方法和装置，能够提高电池在用电装置中的安装稳定性。电池的箱体(100)包括：第一部分箱体(110)，设置有第一孔(111)；安装结构件(130)，位于箱体(100)内，并与第一孔(111)对应设置，安装结构件(130)用于通过第一孔(111)将箱体(100)安装至用电装置；其中，第一孔(111)的边缘设置有刚性结构件(140)，其与安装结构件(130)抵接，以防止安装结构件(140)接触于第一部分箱体(110)。通过该方案，刚性结构件可防止安装结构件对第一部分箱体造成磨损，以保证第一部分箱体的刚度和强度，防止车辆等用电装置的运动对第一部分箱体造成影响，提升箱体以及电池在用电装置内的安装稳定性。

Description

电池的箱体、电池、用电装置、制备电池的方法和装置 技术领域
本申请实施例涉及电池领域，并且更具体地，涉及一种电池的箱体、电池、用电装置、制备电池的方法和装置。
背景技术
节能减排是汽车产业可持续发展的关键。在这种情况下，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。而对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
电池安装于用电装置，如电动车辆上时，车辆的运动会导致电池晃动，电池晃动幅度过大将会对电池的性能产生不利影响。因此，如何提高固定于用电装置上的电池的稳定性，是电池技术中的一个亟待解决的技术问题。
发明内容
本申请提供一种电池的箱体、电池、用电装置、制备电池的方法和装置，能够提高电池在用电装置中的安装稳定性。
第一方面，提供一种电池的箱体，包括：第一部分箱体，设置有第一孔；安装结构件，位于箱体内，并与第一孔对应设置，安装结构件用于通过第一孔将箱体安装至用电装置；其中，第一孔的边缘设置有刚性结构件，刚性结构件与安装结构件抵接，以防止安装结构件接触于第一部分箱体。
通过本申请实施例的技术方案，箱体设置有安装结构件，该安装结构件与第一部分箱体中的第一孔对应设置，且可通过该第一孔将箱体安装至用电装置。在此基础上，第一孔的边缘还设置有刚性结构件，该刚性结构件抵接于安装结构件，可防止安装结构件对第一部分箱体中位于第一孔边缘的部位造成磨损，从而防止该磨损带来的第一部分箱体的刚度和强度下降等问题。通过保证第一部分箱体的刚度和强度，可防止车辆等用电装置的运动对第一部分箱体造成影响，从而提升箱体以及电池在用电装置内的安装稳定性，有利于提升电池的安全性能以及综合性能，便于电池在用电装置中的推广和使用。
在一些可能的实施方式中，刚性结构件与第一部分箱体通过第一密封件相互抵接，以保证刚性结构件与第一部分箱体之间的密封性。
通过该实施方式的技术方案，第一密封件抵接于刚性结构件与第一部分箱体之间，以保证该刚性结构件与第一部分箱体之间的密封性，进而提升箱体整体的密封性，并提升箱体内部的电池单体等电学部件的安全性能。
在一些可能的实施方式中，刚性结构件与安装结构件通过第二密封件相互抵接，以保证刚性结构件与安装结构件之间的密封性。
通过该实施方式的技术方案，第二密封件抵接于该刚性结构件与安装结构件之间，以保证该刚性结构件与安装结构件之间的密封性，进而提升箱体整体的密封性，并提升箱体内部的电池单体等电学部件的安全性能。
在一些可能的实施方式中，箱体还包括：固定件，位于箱体外，并经过第一孔连接于安装结构件，固定件用于将第一部分箱体和刚性结构件固定至安装结构件。
通过该实施方式的技术方案，利用固定件将第一部分箱体以及刚性结构件固定于安装结构件，可以实现第一部分箱体、刚性结构件以及安装结构件之间可靠且牢固的相互连接，从而进一步提升箱体以及电池在用电装置内的安装稳定性。
在一些可能的实施方式中，刚性结构件与固定件抵接，以防止固定件接触于第一部分箱体。
通过该实施方式的技术方案，刚性结构件除了与安装结构件相互抵接以外，还与固定件相互抵接，以防止该固定件接触于第一部分箱体，从而防止该固定件对第一部分箱体造成磨损，进一步保证第一部分箱体的刚度和强度，提升箱体以及电池在用电装置内的安装稳定性。
在一些可能的实施方式中，刚性结构件包覆第一孔的侧壁，以及第一部分箱体位于第一孔的边缘且朝向箱体内部和外部的表面。
通过该实施方式的技术方案，刚性结构件不仅可防止位于第一部分箱体内外表面的安装结构件以及固定件对第一部分箱体造成磨损，保证第一部分箱体的刚度和强度，与此同时，刚性结构件还包覆第一孔的侧壁，即设置于固定件和安装结构件之间，可提供固定件与安装结构件之间的刚性连接，承受固定件与安装结构件之间的拧紧力，保证固定件与安装结构件之间不会松动。通过本实施方式中刚性结构件的设置，可以使得第一部分箱体、刚性结构件与安装结构件之间的相互连接更为稳固，进而提升箱体通过安装结构件安装于用电装置的安装稳定性。
在一些可能的实施方式中，刚性结构件包括第一刚性套和第二刚性套，第一刚性套包括第一管状结构和第一凸缘结构，第一管状结构位于第一孔的侧壁，第一凸缘结构包覆第一部分箱体位于第一孔的边缘且朝向箱体内部的表面；第二刚性套包括第二管状结构和第二凸缘结构，第二管状结构位于第一孔的侧壁，并与第一管状结构相互配合连接，第二凸缘结构包覆第一部分箱体位于第一孔的边缘且朝向箱体外部的表面。
通过该实施方式的技术方案，刚性结构件可由两个刚性套构成，该两个刚性套被配置为能够相互连接，从而便于刚性结构件在第一部分箱体中第一孔边缘处的安装。
在一些可能的实施方式中，第二管状结构包覆第一孔的至少部分侧壁，第一管状结构包覆至少部分第二管状结构。
通过该实施方式的技术方案，在实现第一管状结构和第二管状结构相互配合连接并设置于第一孔的侧壁的基础上，相比于第二管状结构，该第一管状结构远离于第一孔的侧壁设置，连接于第一管状结构的第一凸缘结构在径向方向上的长度较长，从 而能够增大该第一凸缘结构的面积以及该第一凸缘结构与安装结构件之间的接触面积，从而保证第一刚性套与安装结构件之间的连接可靠性。另外，在该实施方式下，第一凸缘结构与安装结构件之间能够较为方便的设置第二密封件，也能提高第二密封件与第一凸缘结构和安装结构件的接触面积，从而提升第二密封件在第一凸缘结构与安装结构件之间的密封性。再者，在该实施方式下，可首先将第一刚性套设置于第一孔，其中第一管状结构可包覆第一孔的至少部分侧壁，然后，再将第二刚性套与第一刚性套相互连接，二者之间安装工艺较为简单，且能够与第一孔配合良好。
在一些可能的实施方式中，第一管状结构与第二管状结构通过螺纹相互配合连接。
通过该实施方式的技术方案，第一管状结构与第二管状结构之间的连接方式工艺简单、易于实现，且能够保证第一刚性套和第二刚性套之间的稳定可靠连接。
在一些可能的实施方式中，第一凸缘结构与第一部分箱体通过第一密封件相互抵接，第一密封件的宽度基本覆盖第一凸缘结构的宽度，和/或，第一密封件的厚度在0.2mm至0.3mm之间。
通过该实施方式的技术方案，第一密封件的宽度基本覆盖第一凸缘结构的宽度，可以较大程度的利用第一凸缘结构的空间设置足够的第一密封件以实现第一凸缘结构与第一部分箱体之间的较为可靠的密封和连接。另外，第一密封件的厚度可在0.2mm至0.3mm之间，以使得第一密封件可具有较优的力学性能，从而保证并优化第一刚性套与第一部分箱体之间的可靠连接。
在一些可能的实施方式中，第一凸缘结构设置有限位台阶，用于容纳第一密封件。
通过该实施方式的技术方案，在第一刚性套的第一凸缘结构上设置限位台阶，以控制容纳于该限位台阶中的第一密封件的尺寸。该实施方式较为简单且易于实现，还能使得第一密封件可具有良好的性能，从而提高箱体整体的制造效率和性能。
在一些可能的实施方式中，第一密封件为结构胶。
通过该实施方式的技术方案，在第一密封件为结构胶的情况下，该第一密封件不仅可保证第一刚性套与第一部分箱体之间的密封性，还可实现该第一刚性套与第一部分箱体之间的可靠连接，进一步提高箱体整体的可靠性。与此同时，结构胶也便于涂覆于第一刚性套或者第一部分箱体上，工艺实现相对简单，有利于提升箱体以及电池的制造效率。
在一些可能的实施方式中，第二凸缘结构与第一部分箱体位于第一孔的边缘且朝向箱体外部的表面之间设置有填充层。
通过该实施方式的技术方案，填充层首先可以用于吸收第一刚性套、第二刚性套以及第一部分箱体的制造公差，以避免第一刚性套、第二刚性套与第一部分箱体之间由于制造工艺影响形成间隙，进而提升箱体整体的密封性等相关性能。
在一些可能的实施方式中，第一凸缘结构和第二凸缘结构的外形均为多边形。
通过该实施方式的技术方案，该多边形的第一凸缘结构和第二凸缘结构可为第一刚性套和第二刚性套的安装工具提供卡止结构，便于该安装工具卡止于第一凸缘结 构和第二凸缘结构，并实现第一刚性套和第二刚性套之间的相互连接和安装。
在一些可能的实施方式中，第一凸缘结构的外形不同于第二凸缘结构的外形。
通过该实施方式的技术方案，第一凸缘结构的外形不同于第二凸缘结构的外形，可以起到防错功能，即通过第一凸缘结构和第二凸缘结构的外形即可分辨出第一刚性套和第二刚性套，有利于第一刚性套和第二刚性套在第一部分箱体上的正确安装。
在一些可能的实施方式中，第一孔位于第一部分箱体的中部区域。
通过该实施方式的技术方案，第一孔位于第一部分箱体的中部区域。对应的，在该实施方式下，刚性结构件和安装结构件也对应位于箱体的中部区域，通过该位于箱体的中部区域的安装结构件以及刚性结构件，可以更为均衡以及稳固的将箱体及其所在的电池安装于用电装置。
在一些可能的实施方式中，第一部分箱体为复合材料，刚性结构件为金属材料。
通过该实施方式的技术方案，第一部分箱体为复合材料，其具有重量轻，且强度相对较高的特点，在保证箱体具有一定的强度以及可靠性的同时，能够降低箱体的整体质量，便于电池在用电装置中的安装和更换。另外，刚性结构件为金属材料，其相比于第一部分箱体可具有更强的耐磨性，且具有一定的刚度和强度。因而，金属材料可较为适宜的作为刚性结构件应用于本申请实施例中，以提高箱体以及电池在用电装置内的安装稳定性。
在一些可能的实施方式中，箱体还包括：第二部分箱体和横梁，第二部分箱体与第一部分箱体相互扣合形成用于容纳电池单体的容纳腔，横梁设置于第二部分箱体中，且安装结构件设置于横梁。
通过该实施方式的技术方案，利用第二部分箱体中的横梁设置安装结构件，一方面不会占用箱体中其它用于容纳电池单体的空间，提升电池的能量密度，另一方面，横梁在箱体中的安装稳定性较高，因此，将安装结构件设置于横梁，也能提高安装结构件在箱体中的安装稳定性。
第二方面，提供一种电池，包括：至少一个电池单体，以及第一方面或第一方面中任一可能的实施方式中的箱体，该箱体用于容纳至少一个电池单体。
第三方面，提供一种用电装置，包括：第二方面中的电池，该电池用于向该用电装置提供电能。
第四方面，提供一种制备电池的方法，包括：提供至少一个电池单体；提供箱体，该箱体包括：第一部分箱体，设置有第一孔；安装结构件，位于箱体内，并与第一孔对应设置，安装结构件用于通过第一孔将箱体安装至用电装置；其中，第一孔的边缘设置有刚性结构件，刚性结构件与安装结构件抵接，以防止安装结构件接触于第一部分箱体；将至少一个电池单体容纳于箱体中。
第五方面，一种制备电池的装置，包括：提供模块，用于提供至少一个电池单体和箱体；其中，箱体包括：第一部分箱体，设置有第一孔；安装结构件，位于箱体内，并与第一孔对应设置，安装结构件用于通过第一孔将箱体安装至用电装置；其中，第一孔的边缘设置有刚性结构件，刚性结构件与安装结构件抵接，以防止安装结构件接触于第一部分箱体；安装模块，用于将电池单体容纳于箱体中。
通过本申请实施例的技术方案，箱体设置有安装结构件，该安装结构件与第一部分箱体中的第一孔对应设置，且可通过该第一孔将箱体安装至用电装置。在此基础上，第一孔的边缘还设置有刚性结构件，该刚性结构件抵接于安装结构件，可防止安装结构件对第一部分箱体中位于第一孔边缘的部位造成磨损，从而防止该磨损带来的第一部分箱体的刚度和强度下降等问题。通过提升第一部分箱体的刚度和强度，可防止车辆等用电装置的运动对第一部分箱体造成影响，从而提升箱体以及电池在用电装置内的安装稳定性，有利于提升电池的安全性能以及综合性能，便于电池在用电装置中的推广和使用。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种车辆的结构示意图；
图2是本申请一实施例公开的一种电池的结构示意图；
图3是本申请一实施例公开的一种电池单体的结构示意图；
图4是本申请一实施例公开的一种箱体的立体爆炸示意图；
图5是沿图4中A-A’方向的示意性截面图；
图6是本申请一实施例公开的另一箱体的示意性截面图；
图7是本申请一实施例公开的另一箱体的示意性截面图；
图8是本申请一实施例公开的另一箱体的示意性截面图；
图9是本申请一实施例公开的另一箱体的示意性截面图；
图10是本申请一实施例公开的另一箱体的示意性截面图；
图11是本申请一实施例公开的第一刚性套和第二刚性套的一种立体示意图；
图12是本申请一实施例公开的一种箱体的立体结构示意图；
图13是图12所示实施例中箱体的立体爆炸示意图；
图14是本申请一实施例公开的制备电池的方法的示意性流程图；
图15是本申请一实施例公开的制备电池的装置的示意性框图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关 系仅是为了便于描述本申请和简化描述，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的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：存在A，同时存在A和B，存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
本申请中，电池是指包括一个或多个电池单体以提供电能的物理模块。例如，本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
可选地，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出 于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔膜的材质可以为聚丙烯(Polypropylene，PP)或聚乙烯(Polyethylene，PE)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率等性能参数，另外，还需要考虑电池的安全性、稳定性等性能。
电池安装于用电装置后，例如，电池安装于电动车辆后，车辆等用电装置的运动会对电池造成一定的冲击，若电池的稳定性不佳，则该冲击会对电池的性能产生不利影响且可能会引发安全问题。
作为示例，对于电动车辆中电池的固定，在一些实施方式中，可在电池的箱体和电动车辆的车架上分别设置相互配合的锁止结构，以实现电池在车架上的固定。
或者，在另一些实施方式中，也可以在电池的箱体中设置安装结构件，通过该安装结构件可实现将电池挂载于车架。可选地，安装结构件可设置于箱体的内部，且该安装结构件的内部可预留出空间，方便车架上的螺栓等结构件插入该安装结构件的内部，从而实现电池在车架上的挂载。
在该实施方式中，安装结构件需抵接于箱体的壁，安装结构件与箱体之间可形成密闭的空间，当车架上的螺栓等结构件插入该安装结构件时，不会破坏箱体内部的密封性，从而保证设置于箱体内部的电池单体的安全性能。
但与此同时，在电动车辆的运行过程中，车架上螺栓等结构件的震动会带动安装结构件震动，从而使得该直接抵接于箱体的壁的安装结构件对箱体的壁造成磨损。在车辆长时间运行的情况下，一方面，该磨损会影响箱体的刚度和强度，进而影响电池在车架上的挂载稳定性，另一方面，该磨损也会影响箱体的密封性，进而影响箱体内部电池单体的安全性能。因此，该实施方式下，电池的箱体在车辆中的安装稳定性以及密封性均不高，因而可能会带来一定的安全隐患。
鉴于此，本申请提供一种电池的箱体，该箱体中除了设置有上述用于将电池挂载于车辆的安装结构件以外，还包括刚性结构件。该刚性结构件与安装结构件相互抵接，可防止安装结构件直接接触于箱体的壁，从而防止安装结构件对箱体的壁造成磨损。通过该实施方式，可以提高固定于用电装置上的电池的稳定性。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
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装置，还可以适用于所有使用电池的装置，但为描述简洁，下述实施例均以电动车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力 汽车或增程式汽车等。车辆1的内部可以设置马达11，控制器12以及电池10，控制器12用来控制电池10为马达11的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提供驱动动力。
为了满足不同的使用电力需求，电池可以包括多个电池单体，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。电池也可以称为电池包。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。
例如，如图2所示，为本申请一个实施例的一种电池10的结构示意图，电池10可以包括多个电池单体20。电池10还可以包括箱体(或称罩体)，箱体内部为中空结构，多个电池单体20容纳于箱体内。如图2所示，箱体可以包括两部分，这里分别称为第一部分箱体110和第二部分箱体120，第一部分箱体110和第二部分箱体120扣合在一起。第一部分箱体110和第二部分箱体120的形状可以根据多个电池单体20组合的形状而定，第一部分箱体110和第二部分箱体120可以均具有一个开口。例如，第一部分箱体110和第二部分箱体120均可以为中空长方体且各自只有一个面为开口面，第一部分箱体110的开口和第二部分箱体120的开口相对设置，并且第一部分箱体110和第二部分箱体120相互扣合形成具有封闭腔室的箱体。多个电池单体20相互并联或串联或混联组合后置于第一部分箱体110和第二部分箱体120扣合后形成的箱体内。
可选地，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件，汇流部件用于实现多个电池单体20之间的电连接，例如并联或串联或混联。具体地，汇流部件可通过连接电池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。可选地，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。该每组电池单体20中包括的电池单体20的数量不限，可以根据需求设置。
图3为本申请一个实施例的一种电池单体20的结构示意图。
如图3所示，电池单体20包括一个或多个电极组件22、壳体211和盖板212。壳体211的壁以及盖板212均称为电池单体20的壁。壳体211根据一个或多个电极组件22组合后的形状而定，例如，壳体211可以为中空的长方体或正方体或圆柱体，且壳体211的其中一个面具有开口以便一个或多个电极组件22可以放置于壳体211内。例如，当壳体211为中空的长方体或正方体时，壳体211的其中一个平面为开口面，即 该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳体211内外相通。盖板212覆盖开口并且与壳体211连接，以形成放置电极组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
该电池单体20还可以包括两个电极端子214，两个电极端子214可以设置在盖板212上。盖板212通常是平板形状，两个电极端子214固定在盖板212的平板面上，两个电极端子214分别为正电极端子214a和负电极端子214b。每个电极端子214各对应设置一个连接构件23，或者也可以称为集流构件23，其位于盖板212与电极组件22之间，用于将电极组件22和电极端子214实现电连接。
如图3所示，每个电极组件22具有第一极耳221a和第二极耳222a。第一极耳221a和第二极耳222a的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳222a为负极极耳。一个或多个电极组件22的第一极耳221a通过一个连接构件23与一个电极端子连接，一个或多个电极组件22的第二极耳222a通过另一个连接构件23与另一个电极端子连接。例如，正电极端子214a通过一个连接构件23与正极极耳连接，负电极端子214b通过另一个连接构件23与负极极耳连接。
在该电池单体20中，根据实际使用需求，电极组件22可设置为单个，或多个，如图3所示，电池单体20内设置有4个独立的电极组件22。
作为示例，电池单体20的一个壁上还可设置泄压机构213。泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力或温度。
可选地，在本申请一个实施例中，泄压机构213和电极端子214设置于电池单体20的不同壁。作为示例，如图3所示，电池单体20的电极端子214可设置于电池单体20的顶壁，即盖板212。泄压机构213设置于电池单体20中不同于顶壁的另一个壁，例如，泄压机构213设置于与顶壁相对的底壁215。为了便于展示，图3中将底壁215与壳体211分离，但这并不限定壳体211的底侧具有开口。
可选地，在本申请另一个实施例中，泄压机构213和电极端子214设置于电池单体20的同一壁。例如，电极端子214和泄压机构213均可设置于电池单体20的顶壁，即盖板212。
上述泄压机构213可以为其所在壁的一部分，也可以与其所在壁为分体式结构，通过例如焊接的方式固定在其所在壁上。例如，在图3所示实施例中，当泄压机构213为底壁215的一部分时，泄压机构213可以通过在底壁215上设置刻痕的方式形成，与该刻痕的对应的底壁215厚度小于泄压机构213除刻痕处其他区域的厚度。刻痕处是泄压机构213最薄弱的位置。当电池单体20产生的气体太多使得壳体211内部压力升高并达到阈值或电池单体20内部反应产生热量造成电池单体20内部温度升高并达到阈值时，泄压机构213可以在刻痕处发生破裂而导致壳体211内外相通，气体压力及温度通过泄压机构213的裂开向外释放，进而避免电池单体20发生爆炸。
另外，泄压机构213可以为各种可能的泄压机构，本申请实施例对此并不限定。例如，泄压机构213可以为温敏泄压机构，温敏泄压机构被配置为在设有泄压机构213的电池单体20的内部温度达到阈值时能够熔化；和/或，泄压机构213可以为压敏泄压 机构，压敏泄压机构被配置为在设有泄压机构213的电池单体20的内部气压达到阈值时能够破裂。
上文结合图3说明了本申请实施例提供的一种电池单体20的示意性结构图，下面结合图4和图5，说明本申请实施例提供的一种箱体100的相关技术方案。其中，图4为本申请实施例提供的一种箱体100的立体爆炸示意图，图5为沿图4中A-A’方向的示意性截面图。
如图4和图5所示，箱体100包括：第一部分箱体110，设置有第一孔111；安装结构件130，位于箱体100内，并与第一孔111对应设置，该安装结构件130用于通过第一孔111将箱体100安装至用电装置；其中，第一孔111的边缘设置有刚性结构件140，该刚性结构件140与安装结构件130抵接，以防止该安装结构件130接触于第一部分箱体110。
具体地，在本申请实施例中，第一部分箱体110为箱体100中的部分箱体。作为一种示例，如图4所示，第一部分箱体110可为盖板结构，该第一部分箱体110可为箱体100中的其中一个壁。或者，在另一种示例中，该第一部分箱体110也可为图2所示的具有开口面的中空长方体结构。本申请实施例对该第一部分箱体110的具体形状和尺寸不做限定，旨在能够与箱体200中其它部分共同形成具有密闭腔室的立体结构即可。
另外，第一部分箱体110中设置有第一孔111，该第一孔111与位于箱体100内部的安装结构件130对应设置，以便于该安装结构件130能够通过第一孔111将箱体100安装至电池10所在的用电装置。
具体地，用电装置中设置有与该安装结构件130相互配合的结构件，该安装结构件130与其配合的结构件中的任意一者可穿过第一孔111，以实现二者的相互连接。例如，安装结构件130为具有螺纹结构的底座，用电装置中设置有与该底座相互配合的螺栓；或者，又例如，安装结构件130为螺栓，用电装置中设置有底座；螺栓穿过第一孔111连接至底座，以实现二者的相互连接。当然，在其它实施方式中，安装结构件130与其配合的结构件还可为其它类型的结构件，旨在能够实现二者的稳定连接即可，本申请实施例对此不做具体限定。
可选地，在一些实施方式中，安装结构件130可用于将箱体100挂载至用电装置。例如，安装结构件130可用于将箱体100挂载至车辆1的车架，以实现电池10在车辆1中的固定安装，当箱体100挂载于车辆1的车架后，箱体100位于车架的重力方向。当然，在其它实施方式中，安装结构件130也可用于实现箱体100在用电装置中除了挂载以外的其它安装形式，旨在能够实现箱体100在用电装置中的稳定设置即可，本申请实施例对此也不做具体限定。
结合图4和图5所示，在本申请实施例中，箱体100中除了设置有安装结构件130以外，在第一部分箱体110的第一孔111的边缘还设置有刚性结构件140，该刚性机构件140可为环状结构件，其中部的中空区域对应于第一孔111，且刚性结构件140抵接于第一部分箱体110位于第一孔111边缘的部位以及安装结构件130，以防止安装结构件130接触于第一部分箱体110位于第一孔111的边缘部位。
通过本申请实施例的技术方案，箱体100设置有安装结构件130，该安装结构件130与第一部分箱体110中的第一孔111对应设置，且可通过该第一孔111将箱体100安装至用电装置。在此基础上，第一孔111的边缘还设置有刚性结构件140，该刚性结构件140抵接于安装结构件130，可防止安装结构件130对第一部分箱体110中位于第一孔111边缘的部位造成磨损，从而防止该磨损带来的第一部分箱体110的刚度和强度下降等问题。通过保证第一部分箱体110的刚度和强度，可防止车辆等用电装置的运动对第一部分箱体110造成影响，从而提升箱体100以及电池10在用电装置内的安装稳定性，有利于提升电池10的安全性能以及综合性能，便于电池10在用电装置中的推广和使用。
另外，相比于通过柔性结构件抵接于安装结构件130以防止安装结构件130接触于第一部分箱体110的技术方案，本申请实施例中的刚性结构件140具有较大的刚度和强度，其稳定性和可靠性更高，能够更为有效的承受安装结构130对其产生的作用力且磨损程度较小。与此同时，刚性结构件140设置于第一部分箱体110与安装结构件130之间，能够提高第一部分箱体110与安装结构件130之间的连接强度，当安装结构件130通过第一部分箱体110中的第一孔111安装至用电装置时，第一部分箱体110与安装结构件130之间较高的连接强度也可进一步保证箱体100及其所在电池10在用电装置中的安装稳定性
可选地，在本申请实施例中，第一部分箱体110可以为复合材料，例如：片状模塑料(sheet molding compound，SMC)、预压料模压(prepreg compression molding，PCM)复合材料、高压树脂传递模塑成型(high pressure resin transfer molding，HP-RTM)复合材料等等。其具有重量轻，且强度相对较高的特点，在保证箱体100具有一定的强度以及可靠性的同时，能够降低箱体100的整体质量，便于电池10在用电装置中的安装和更换。
另外，可选地，在本申请实施例中，刚性结构件140可为金属材料，例如，刚材料、不锈钢材料、铝合金材料、铜材料等等。该刚性结构件140相比于第一部分箱体110可具有更强的耐磨性，且具有一定的刚度和强度。因而，金属材料可较为适宜的作为刚性结构件140应用于本申请实施例中，以提高箱体100以及电池10在用电装置内的安装稳定性。
可选地，在上述申请实施例的一些实施方式中，刚性结构件140可直接抵接于第一部分箱体110。具体地，刚性结构件140可直接抵接于第一部分箱体110中位于第一孔111边缘的部位。但在该实施方式下，刚性结构件140与第一部分箱体110之间的密封性不佳，会影响箱体100内部的电池单体20等电学部件的安全性能。
因此，可选地，在上述申请实施例的另一些实施方式，刚性结构件140与第一部分箱体110可通过第一密封件151相互抵接，以保证该刚性结构件140与第一部分箱体110之间的密封性。
图6示出了本申请实施例提供的另一箱体100的示意性截面图。
如图6所示，第一密封件151设置于刚性结构件140与第一部分箱体110之间。可选地，该第一密封件151可以为环状结构，其适配于第一部分箱体110中的第一孔 111的形状，并设置于刚性结构件140与第一部分箱体110中位于第一孔111边缘的部位之间。在该实施方式下，第一密封件151连接该刚性结构件140与第一部分箱体110中位于第一孔111边缘的部位，以保证该刚性结构件140与第一部分箱体110之间的密封性，进而提升箱体100整体的密封性，并提升箱体100内部的电池单体20等电学部件的安全性能。
可选地，该第一密封件151包括但不限于是：结构胶或者橡胶材料。除此之外，该第一密封件151还可以为相关技术中用于实现密封功能的其它任意材料，本申请实施例对此不做具体限定。
在第一密封件151为结构胶的情况下，该第一密封件151不仅可保证刚性结构件140与第一部分箱体110之间的密封性，还可实现该刚性结构件140与第一部分箱体110之间的可靠连接，进一步提高箱体100整体的可靠性。与此同时，结构胶也便于涂覆于刚性结构件140或者第一部分箱体110上，工艺实现相对简单，有利于提升箱体100以及电池10的制造效率。
可选地，为了保证该第一密封件151的强度等力学性能，该第一密封件151在刚性结构件140与第一部分箱体110之间的厚度也需控制在合适的范围内。作为示例而非限定，该第一密封件151的厚度在0.2mm至0.3mm之间，以使得第一密封件151可具有较优的力学性能，进一步保证并优化刚性结构件140与第一部分箱体110之间的可靠连接。
在上述图6实施例中，可通过第一密封件151实现刚性结构件140与第一部分箱体110之间的密封乃至可靠连接。进一步地，刚性结构件140与安装结构件130之间也可通过第二密封件152相互抵接，以保证该刚性结构件140与安装结构件130之间的密封性。当然，为了节约成本或者在较为密闭的安装环境下，刚性结构件140也可直接抵接于安装结构件130。
图7示出了本申请实施例提供的另一箱体100的示意性截面图。
如图7所示，第二密封件152的至少部分设置于刚性结构件140与安装结构件130之间。可选地，该第二密封件152可以为环状结构，其适配于第一部分箱体110中的第一孔111的形状，且设置于安装结构件130朝向刚性结构件140的一侧。在该实施方式下，第二密封件152抵接于该刚性结构件140与安装结构件130之间，以保证该刚性结构件140与安装结构件130之间的密封性，进而提升箱体100整体的密封性，并提升箱体100内部的电池单体20等电学部件的安全性能。
可选地，该第二密封件152包括但不限于是：橡胶材料或者结构胶。除此之外，该第二密封件152还可以为相关技术中用于实现密封功能的其它任意材料，本申请实施例对此不做具体限定。
作为示例，如图7所示，第二密封件152可以为橡胶材料，例如，第二密封件152可为橡胶圈。安装结构件130朝向刚性结构件140的一侧可形成有凹槽，该凹槽可用于容纳该第二密封件152，以便于第二密封件152安装于该安装结构件130。可以理解的是，在该实施方式中，第二密封件152的厚度需大于凹槽的深度，以使得第二密封件152的至少部分外露于凹槽，且该第二密封件152的至少部分可与刚性结构件130相 互抵接。
在第二密封件152为橡胶材料的情况下，该第二密封件152在具有良好密封性能的同时，还可便于安装设置于安装结构件130中，且便于更换和维修，从而保证该第二密封件152实现刚性结构件140与安装结构件130之间长期且较为可靠的密封。
在上文申请实施例中，第一部分箱体110中形成有第一孔111，刚性结构件140设置于第一孔111的边缘，且安装结构件130也与该第一孔111对应设置。虽然刚性结构件140可直接或间接的抵接于安装结构件130，且刚性结构件140可直接或间接的抵接于第一部分箱体110，但三者之间欠缺较为可靠以及牢固的相互连接，或者说，三者之间还可进一步实现更为可靠以及牢固的相互连接。因此，在本申请实施例中，箱体100还进一步包括固定件160，用于将第一部分箱体110以及刚性结构件140固定于安装结构件130，以实现三者的可靠连接。
图8示出了本申请实施例提供的另一箱体100的示意性截面图。
如图8所示，在本申请实施例中，箱体100还包括：固定件160，位于箱体100外，并经过第一孔111连接于安装结构件130，该固定件160用于将第一部分箱体110和刚性结构件140固定至安装结构件130。
具体地，如图8所示，该固定件160可位于第一部分箱体110朝向箱体100外部的一侧，该固定件160可从箱体100的外侧，穿过第一孔111，将第一部分箱体110以及刚性结构件140均固定至安装结构件130，以实现第一部分箱体110、刚性结构件140以及安装结构件130三者之间的可靠连接。
作为示例而非限定，如图8所示，固定件160可为一端具有凸缘的螺钉结构，该凸缘从箱体100的外侧附接于第一部分箱体110，螺钉通过第一孔111插入安装结构件130中，二者均可具有相互配合的螺纹结构以实现二者的固定连接。与此同时，凸缘作用于第一部分箱体110和刚性结构件140，以使得该第一部分箱体110和刚性结构件140能够紧密附接于安装结构件130。
可选地，如图8所示，固定件160中可预留出空间，该空间连通于安装结构件130的内部空间，以方便用电装置中的结构件能够进入该空间，并实现与安装结构件130的相互连接。
在图8所示实施例中，固定件160与第一部分箱体110直接抵接，在用电装置的运动过程中，用电装置中的结构件的震动会带动安装结构件130以及该固定件160震动，从而使得固定件160对第一部分箱体110造成磨损。
鉴于此，在本申请实施例中，刚性结构件140除了与安装结构件130相互抵接以外，还与固定件160相互抵接，以防止该固定件160接触于第一部分箱体110，从而防止该固定件160对第一部分箱体110造成磨损。
图9示出了本申请实施例提供的另一箱体100的示意性截面图。
如图9所示，在本申请实施例中，刚性结构件140可包覆第一部分箱体110中第一孔111的侧壁，以及第一部分箱体110位于该第一孔111的边缘且朝向箱体100的内部和外部的表面。
具体地，在本申请实施例中，刚性结构件140中的第一部分可包覆第一部分箱 体110位于第一孔111的边缘且朝向箱体100的内部的表面，该第一部分刚性结构件可直接或间接的抵接于第一部分箱体110和安装结构件130，以防止安装结构件130对第一部分箱体110造成磨损。
另外，刚性结构件140中的第二部分可包覆第一部分箱体110位于第一孔111的边缘且朝向箱体100的外部的表面，该第二部分刚性结构件可直接或间接的抵接于第一部分箱体110和固定件160，以防止固定件160对第一部分箱体110造成磨损。
再者，刚性结构件140中的第三部分可包覆第一部分箱体110中第一孔111的侧壁，该第三部分刚性结构件可用于连接第一部分刚性结构件与第二部分刚性结构件，使得刚性结构件140的整体能够更为稳固的设置于第一孔111的边缘，与第一部分箱体110形成可靠且稳固的连接。另外，第三部分刚性结构件设置于固定件160和安装结构件130之间，可提供固定件160与安装结构件130之间的刚性连接，承受固定件160与安装结构件130之间的拧紧力，保证固定件160与安装结构件130之间不会松动。通过该第三部分刚性结构件的设置，可以使得第一部分箱体110、刚性结构件140与安装结构件130之间的相互连接更为稳固，进而提升箱体100通过安装结构件130安装于用电装置的安装稳定性。
可选地，如图9所示，在刚性结构件140中，上述第一部分刚性结构件与第一部分箱体110朝向箱体100内部的表面之间可设置有第一密封件151，和/或，上述第二部分刚性结构件与第一部分箱体110朝向箱体100外部的表面之间可设置有填充层153。其中，第一密封件151用于保证第一部分刚性结构件与第一部分箱体110朝向箱体100内部的表面之间的密封性。填充层153首先可以用于吸收刚性结构件140和第一部分箱体110的制造公差，以避免刚性结构件140与第一部分箱体110之间由于制造工艺影响形成间隙，进而提升箱体100整体的密封性等相关性能。其次，填充层153可为结构胶层，该结构胶层除了可用于起到密封作用以外，还可用于实现第二部分刚性结构件与第一部分箱体110之间的连接，以进一步提高刚性结构件140在第一部分箱体110上的安装稳定性。当然，填充层153除了可为结构胶层以外，还可采用其它填充材料，例如橡胶、泡棉等等，本申请实施例对该具体地填充材料不做具体限定。
可选地，刚性结构件140除了可包括上文所述的三部分结构件以外，在其它实施方式中，刚性结构件140中的上述第三部分也可省略，即刚性结构件140中包括相互分离的第一部分和第二部分，该第一部分和第二部分可分别通过结构胶粘附于第一部分箱体110位于该一孔111的边缘且朝向箱体100的内部和外部的表面。在该实施方式下，虽然刚性结构件140在第一部分箱体110上的安装稳定性略差，但可减少刚性结构件140的用量，降低刚性结构件140以及箱体100整体的制造成本。
对于图9中所示的刚性结构件140，可选地，在一些实施方式中，该刚性结构件140可由两个刚性套构成，该两个刚性套被配置为能够相互连接，从而便于刚性结构件140在第一部分箱体110中第一孔111边缘处的安装。
图10示出了本申请实施例提供的另一箱体100的示意性截面图。
如图10所示，在本申请实施例中，刚性结构件140可包括第一刚性套141和第二刚性套142，该第一刚性套141包括第一管状结构1411和第一凸缘结构1412，该第 一管状结构位于第一孔111的侧壁，该第一凸缘结构1412包覆第一部分箱体110位于第一孔111的边缘且朝向箱体100内部的表面。该第二刚性套142包括第二管状结构1421和第二凸缘结构1422，该第二管状结构1421位于第一孔111的侧壁，并与第一管状结构1411相互配合连接，第二凸缘结构1422包覆第一部分箱体110位于第一孔111的边缘且朝向箱体110外部的表面。
具体地，对于第一刚性套141的第一管状结构1411，以及第二刚性套142中的第二管状结构1421，二者在径向上的形状尺寸可适配于第一部分箱体110中第一孔111的形状尺寸。例如，二者在径向上的尺寸可略小于第一孔111的直径，以使得二者能够安装设置于第一孔111内并位于第一孔111的侧壁。另外，第一管状结构1411和第二管状结构1421在轴向上的尺寸可适配于第一部分箱体110的厚度。例如，第一管状结构1411和第二管状结构1421在轴向上的尺寸略大于第一部分箱体110的厚度。
另外，第一凸缘结构1412连接于第一管状结构1411，且位于第一管状结构1411朝向箱体100的内部的一端，并沿第一部分箱体110朝向箱体100的内部的表面延伸。该第一凸缘结构1412可直接抵接于第一部分箱体110位于第一孔111的边缘且朝向箱体100内部的表面，或者，如图10所示，该第一凸缘结构1412可通过第一密封件151抵接于第一部分箱体110，具体地，该第一凸缘结构1412通过第一密封件151抵接于位于第一孔111的边缘且朝向箱体100内部的表面。另外，在第一凸缘结构1412抵接于第一部分箱体110的同时，该第一凸缘结构1412还可抵接于安装结构件130。具体地，该第一凸缘结构1412也可直接抵接于安装结构件130，或者，第一凸缘结构1412也可通过第二密封件152抵接于安装结构件130。
在该实施方式中，如图10所示，位于第一凸缘结构1412与第一部分箱体110之间的第一密封件151的宽度可基本覆盖第一凸缘结构1412的宽度。其中，该第一密封件151和第一凸缘结构1412的宽度可理解为第一密封件151和第一凸缘结构1412在第一方向上的尺寸，该第一方向平行于第一孔111的径向方向，或者说，第一方向平行于第一管状结构1411的径向方向。
通过该实施方式，可以较大程度的利用第一凸缘结构1412的空间设置足够的第一密封件151以实现第一凸缘结构1412与第一部分箱体110之间的较为可靠的密封和连接。
作为示例而非限定，该第一密封件151的宽度可大于或等于15mm，以保证第一凸缘结构1412与第一部分箱体110之间的较为可靠的密封和连接。
另外，如上文所述，该第一密封件151的厚度可在0.2mm至0.3mm之间，以使得第一密封件151可具有较优的力学性能，从而保证并优化第一刚性套141与第一部分箱体110之间的可靠连接。
请继续参见图10，第二凸缘结构1422连接于第二管状结构1421，且位于第二管状结构1421朝向箱体100的外部的一端，并沿第一部分箱体110朝向箱体100的外部的表面延伸。该第二凸缘结构1422可直接抵接于第一部分箱体110位于第一孔111的边缘且朝向箱体100外部的表面，或者，如图10所示，该第二凸缘结构1422可通过填充层153抵接于第一部分箱体110位于第一孔111的边缘且朝向箱体100外部的表 面，换言之，第二凸缘结构1422与第一部分箱体110位于第一孔111的边缘且朝向箱体100外部的表面之间设置有填充层153。
结合上文所述，在本申请实施例中，填充层153首先可以用于吸收第一刚性套141、第二刚性套142以及第一部分箱体110的制造公差，以避免第一刚性套141、第二刚性套142与第一部分箱体110之间由于制造工艺影响形成间隙，进而提升箱体100整体的密封性等相关性能。其次，填充层153可为结构胶层，该结构胶层除了可用于起到密封作用以外，还可用于实现第二刚性套142与第一部分箱体110之间的连接，以进一步提高刚性结构件140在第一部分箱体110上的安装稳定性。
可选地，该填充层153在第二凸缘结构1422与第一部分箱体110之间的厚度可大于第一密封件151的厚度，以使得该填充层153较大的厚度，从而能够充分吸收第一刚性套141、第二刚性套142以及第一部分箱体110的制造公差，保证箱体100的性能。
可选地，如图10所示，在一些实施方式中，第二管状结构1421包覆第一孔111的至少部分侧壁，第一管状结构1411包覆至少部分第二管状结构1421。
在该实施方式下，在实现第一管状结构1411和第二管状结构1421相互配合连接并设置于第一孔111的侧壁的基础上，相比于第二管状结构1421，该第一管状结构1411远离于第一孔111的侧壁设置，连接于第一管状结构1411的第一凸缘结构1412在径向方向上的长度较长，从而能够增大该第一凸缘结构1412的面积以及该第一凸缘结构1412与安装结构件130之间的接触面积，从而保证第一刚性套141与安装结构件130之间的连接可靠性。另外，在该实施方式下，第一凸缘结构1412与安装结构件130之间能够较为方便的设置第二密封件152，也能提高第二密封件152与第一凸缘结构1412和安装结构件130的接触面积，从而提升第二密封件152在第一凸缘结构1412与安装结构件130之间的密封性。再者，在该实施方式下，可首先将第一刚性套141设置于第一孔111，其中第一管状结构1411可包覆第一孔111的至少部分侧壁，然后，再将第二刚性套142与第一刚性套141相互连接，二者之间安装工艺较为简单，且能够与第一孔111配合良好。
除了如图10所示方式设置第一管状结构1411和第二管状结构1421以实现第一管状结构1411和第二管状结构1421相互配合连接并设置于第一孔111的侧壁以外，在其它实施方式中，第一管状结构1411包覆第一孔111的至少部分侧壁，第二管状结构1421包覆至少部分第一管状结构1411，也可实现第一管状结构1411和第二管状结构1421相互配合连接并设置于第一孔111的侧壁。
作为示例而非限定，如图10所示，第一管状结构1411和第二管状结构1421被配置为通过螺纹相互配合连接。该实施方式工艺简单、易于实现，且能够保证第一刚性套141和第二刚性套142之间的稳定可靠连接。
当然，第一管状结构1411和第二管状结构1421除了可通过螺纹相互配合连接以外，还可通过相关技术中其它机械连接方式相互连接，例如，可通过结构胶、卡扣、凹凸配合等等方式实现第一管状结构1411和第二管状结构1421之间的相互连接，本申请实施例对具体的机械连接方式不做具体限定。
图11示出了上述第一刚性套141和第二刚性套142的一种立体示意图。
如图11所示，为实现第一管状结构1411包覆至少部分第二管状结构1421以及二者的配合连接，第一刚性套141的第一管状结构1411上设置有外螺纹，对应的，第二刚性套142的第二管状结构1421上设置有内螺纹，以使得二者之间能够相互配合连接。
另外，如图11所示，第一刚性套141的第一凸缘结构1412上设置有限位台阶1413，该限位台阶1413用于容纳上述第一密封件151。
具体地，该实施方式中，限位台阶1413的高度可控制在一定的范围内，从而使得容纳于该限位台阶1413中的第一密封件151的厚度也控制在一定范围的范围内，例如，0.2mm至0.3mm以内，从而保证第一密封件151具有较佳的力学性能。
另外，限位台阶1413的宽度也可基本覆盖第一凸缘结构1412的宽度，从而较大程度的利用第一凸缘结构1412的空间，使得容纳于该限位台阶1413中的第一密封件151的宽度较宽，从而保证第一密封件151具有较好的密封性能。
通过本申请实施例的技术方案，在第一刚性套141的第一凸缘结构1412上设置限位台阶1413，以控制容纳于该限位台阶1413中的第一密封件151的尺寸。该实施方式较为简单且易于实现，还能使得第一密封件151可具有良好的性能，从而提高箱体100整体的制造效率和性能。
继续参见图11，第一刚性套141的第一凸缘结构1412和第二刚性套142的第二凸缘结构1422的外形均为多边形。该多边形的第一凸缘结构1412和第二凸缘结构1422可为第一刚性套141和第二刚性套142的安装工具提供卡止结构，便于该安装工具卡止于第一凸缘结构1412和第二凸缘结构1422，并实现第一刚性套141和第二刚性套142之间的相互连接和安装。
具体地，当安装工具卡止于第一凸缘结构1412和/或第二凸缘结构1422后，通过旋转安装工具从而旋转第一凸缘结构1412和/或第二凸缘结构1422，带动第一管状结构1411和/或第二管状结构1422旋转，从而使得第一管状结构1411和第二管状结构1422通过螺纹相互连接，以实现第一刚性套141和第二刚性套142之间的相互连接和安装。
可选地，第一凸缘结构1412的外形不同于第二凸缘结构1422的外形。例如，第一凸缘结构1412的外形为具有N条直边的多边形，第二凸缘结构1422的外形为具有M条边的多边形，其中M和N为不相等的两个正整数。或者，在M与N相等的情况下，两个多边形的形状不同。作为示例而非限定，在图11所示实施例中，第一凸缘结构1412和第二凸缘结构1422的外形均为十二边形，但第一凸缘结构1412的外形为正十二边形，而第二凸缘结构1422的外形不为正十二边形。
通过本申请实施例的技术方案，第一凸缘结构1412的外形不同于第二凸缘结构1422的外形，可以起到防错功能，即通过第一凸缘结构1412和第二凸缘结构1422的外形即可分辨出第一刚性套141和第二刚性套142，有利于第一刚性套141和第二刚性套142在第一部分箱体110上的正确安装。
可选地，在上述各实施例中，第一孔111可设置于第一部分箱体110的中部区域。对应的，在该实施方式下，刚性结构件140和安装结构件130也对应位于箱体100 的中部区域，通过该位于箱体100的中部区域的安装结构件130以及刚性结构件140，可以更为均衡以及稳固的将箱体100及其所在的电池10安装于用电装置。
可选地，箱体100中可包括一个或多个刚性结构件140，在箱体100包括多个刚性结构件140的情况下，能够进一步提升箱体100及其所在电池10在用电装置中的安装稳定性。
图12示出了本申请实施例提供的箱体100的一种立体结构示意图。图13示出了图12所示实施例中箱体100的立体爆炸示意图。
如图12所示，在本申请实施例中，箱体100包括两个刚性结构件140，该两个刚性结构件140可分布设置于第一部分箱体110的中部区域。
可选地，第一部分箱体110可近似看成板状结构，该两个刚性结构件140可位于第一部分箱体110在长度方向上的中轴线L1上，且相对于第一部分箱体110在宽度方向上的中轴线L2对称设置。
可选地，在其它实施方式中，该两个刚性结构件140相对于第一部分箱体110在长度方向上的中轴线L1对称设置，或者相对于第一部分箱体110的对角线对称设置。通过上述实施方式，能够使得箱体100及其所在电池10更为均衡和稳定的安装设置于用电装置。
可选地，继续参见图12和图13，在本申请示例中，箱体100还可进一步包括第二部分箱体120，该第二部分箱体120可与上述第一部分箱体110相互扣合形成用于容纳电池单体20的容纳腔。
具体地，该第二部分箱体120可为具有开口的中空长方体结构，其尺寸可与第一部分箱体110相互配合，以形成密闭的容纳腔，保证位于该容纳腔中电池单体20以及其它相关结构件的整体性能。
可选地，如图13所示，第二部分箱体120中可设置有横梁121，该横梁121可用于将多个电池单体20相互隔开，并提高多个电池单体20在箱体100中的安装稳定性。
在一些实施方式中，上述安装结构件130可设置于该横梁121。例如，安装结构件130可设置于横梁121中与第一部分箱体110相对的表面，以便于安装结构件130与第一部分箱体110中的第一孔111相互对应。
通过本申请实施例的技术方案，利用第二部分箱体120中的横梁121设置安装结构件130，一方面不会占用箱体100中其它用于容纳电池单体20的空间，提升电池10的能量密度，另一方面，横梁121在箱体100中的安装稳定性较高，因此，将安装结构件130设置于横梁121，也能提高安装结构件130在箱体100中的安装稳定性。
另外，如图13所示，在本申请实施例中，刚性结构件140可如图10至图11所示的刚性结构件140，即包括第一刚性套141和第二刚性套142。该第二刚性套142和第一刚性套141上下包覆第一部分箱体110中位于第一孔111边缘的区域。且该第一刚性套141和第二刚性套142可通过螺纹连接，安装固定于第一孔111的位置。
进一步地，在图13所示实施例中，第一刚性套141和第二刚性套142与安装结构件130以及固定件160对应设置。固定件160可穿过第一刚性套141和第二刚性套 142固定至安装结构件130。该第一刚性套141和第二刚性套142承受固定件160与安装结构件130之间的拧紧力，保证此处的硬连接，且使得该部位不会松动，提升箱体100在用电装置中的安装稳定性。与此同时，第一刚性套141和第二刚性套142还可以避免固定件160和安装结构件130对第一部分箱体110造成磨损，提升箱体100整体的使用寿命以及可靠性。
需要说明的是，图13所示实施例中，第一刚性套141与第一部分箱体110之间可设置有第一密封件151，第一刚性套141与安装结构件130之间可设置有第二密封件152，且第二刚性套142与第一部分箱体110之间可设置有填充层153。该第一密封件151、第二密封件152和填充层153的具体设置方式以及相关功能可以参见上文实施例中的相关描述，此处不做过多赘述。
本申请一个实施例还提供一种电池10，该电池10可以包括：至少一个电池单体20以及前述各实施例中的箱体100，该箱体100用于容纳至少一个电池单体20。
本申请一个实施例还提供了一种用电装置，该用电装置可以包括前述实施例中的电池10，电池10用于向该用电装置提供电能。
可选地，用电装置可以为车辆1、船舶或航天器。
上文描述了本申请实施例的箱体100、电池10和用电装置，下面将描述本申请实施例的制备电池的方法和装置，其中未详细描述的部分可参见前述各实施例。
图14示出了本申请一个实施例的制备电池的方法300的示意性流程图。如图14所示，该方法300可以包括如下步骤。
S301：提供至少一个电池单体20。
S302：提供箱体100。
具体地，该箱体100包括：第一部分箱体110，设置有第一孔111；安装结构件130，位于箱体100内，并与第一孔111对应设置，该安装结构件130用于通过第一孔111将箱体100安装至用电装置；其中，第一孔111的边缘设置有刚性结构件140，该刚性结构件140与安装结构件130抵接，以防止该安装结构件130接触于第一部分箱体110。
S303：将至少一个电池单体20容纳于箱体100中。
图15示出了本申请一个实施例的制备电池的装置400的示意性框图。如图15所示，制备电池的装置400可以包括：提供模块401和安装模块402。
具体地，该第一提供模块401用于提供至少一个电池单体20和箱体100。
其中，该箱体100包括：第一部分箱体110，设置有第一孔111；安装结构件130，位于箱体100内，并与第一孔111对应设置，该安装结构件130用于通过第一孔111将箱体100安装至用电装置；其中，第一孔111的边缘设置有刚性结构件140，该刚性结构件140与安装结构件130抵接，以防止该安装结构件130接触于第一部分箱体110。
安装模块402用于将至少一个电池单体20容纳于箱体100中。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存 在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (22)

  1. 一种电池的箱体(100)，其特征在于，包括：
    第一部分箱体(110)，设置有第一孔(111)；
    安装结构件(130)，位于所述箱体(100)内，并与所述第一孔(111)对应设置，所述安装结构件(130)用于通过所述第一孔(111)将所述箱体(100)安装至用电装置；
    其中，所述第一孔(111)的边缘设置有刚性结构件(140)，所述刚性结构件(140)与所述安装结构件(130)抵接，以防止所述安装结构件(130)接触于所述第一部分箱体(110)。
  2. 根据权利要求1所述的箱体(100)，其特征在于，所述刚性结构件(140)与所述第一部分箱体(110)通过第一密封件(151)相互抵接，以保证所述刚性结构件(140)与所述第一部分箱体(110)之间的密封性。
  3. 根据权利要求1或2所述的箱体(100)，其特征在于，所述刚性结构件(140)与所述安装结构件(130)通过第二密封件(152)相互抵接，以保证所述刚性结构件(140)与所述安装结构件(130)之间的密封性。
  4. 根据权利要求1至3中任一项所述的箱体(100)，其特征在于，所述箱体(100)还包括：固定件(160)，位于所述箱体(100)外，并经过所述第一孔(111)连接于所述安装结构件(130)，所述固定件(160)用于将所述第一部分箱体(110)和所述刚性结构件(140)固定至所述安装结构件(130)。
  5. 根据权利要求4所述的箱体(100)，其特征在于，所述刚性结构件(140)与所述固定件(160)抵接，以防止所述固定件(160)接触于所述第一部分箱体(110)。
  6. 根据权利要求1至5中任一项所述的箱体(100)，其特征在于，所述刚性结构件(140)包覆所述第一孔(111)的侧壁，以及所述第一部分箱体(110)位于所述第一孔(111)的边缘且朝向所述箱体(100)内部和外部的表面。
  7. 根据权利要求1至6中任一项所述的箱体(100)，其特征在于，所述刚性结构件(140)包括第一刚性套(141)和第二刚性套(142)，所述第一刚性套(141)包括第一管状结构(1411)和第一凸缘结构(1412)，所述第一管状结构(1411)位于所述第一孔(111)的侧壁，所述第一凸缘结构(1412)包覆所述第一部分箱体(110)位于所述第一孔(111)的边缘且朝向所述箱体(100)内部的表面；
    所述第二刚性套(142)包括第二管状结构(1421)和第二凸缘结构(1422)，所述第二管状结构(1421)位于所述第一孔(111)的侧壁，并与所述第一管状结构(1411)第一刚性套(141)相互配合连接，所述第二凸缘结构(1422)包覆所述第一部分箱体(110)位于所述第一孔(111)的边缘且朝向所述箱体(100)外部的表面。
  8. 根据权利要求7所述的箱体(100)，其特征在于，所述第二管状结构(1421)包覆所述第一孔(111)的至少部分侧壁，所述第一管状结构(1411)包覆至少部分所述第二管状结构(1421)。
  9. 根据权利要求7或8所述的箱体(100)，其特征在于，所述第一管状结构(1411)与所述第二管状结构(1421)通过螺纹相互配合连接。
  10. 根据权利要求7至9中任一项所述的箱体(100)，其特征在于，所述第一凸缘结构(1412)与所述第一部分箱体(110)通过第一密封件(151)相互抵接，所述第一密封件(151)的宽度基本覆盖所述第一凸缘结构(1412)的宽度，和/或，所述第一密封件(151)的厚度在0.2mm至0.3mm之间。
  11. 根据权利要求10所述的箱体(100)，其特征在于，所述第一凸缘结构(1412)设置有限位台阶，用于容纳所述第一密封件(151)。
  12. 根据权利要求10或11所述的箱体(100)，其特征在于，所述第一密封件(151)为结构胶。
  13. 根据权利要求7至12中任一项所述的箱体(100)，其特征在于，所述第二凸缘结构(1422)与所述第一部分箱体(110)位于所述第一孔(111)的边缘且朝向所述箱体(100)外部的表面之间设置有填充层(153)。
  14. 根据权利要求7至13中任一项所述的箱体(100)，其特征在于，所述第一凸缘结构(1412)和所述第二凸缘结构(1422)的外形均为多边形。
  15. 根据权利要求14所述的箱体(100)，其特征在于，所述第一凸缘结构(1412)的外形不同于所述第二凸缘结构(1422)的外形。
  16. 根据权利要求1至14中任一项所述的箱体(100)，其特征在于，所述第一孔(111)位于所述第一部分箱体(110)的中部区域。
  17. 根据权利要求1至16中任一项所述的箱体(100)，其特征在于，所述第一部分箱体(110)为复合材料，所述刚性结构件(140)为金属材料。
  18. 根据权利要求1至17中任一项所述的箱体(100)，其特征在于，所述箱体(100)还包括：第二部分箱体(120)和横梁(121)，所述第二部分箱体(120)与所述第一部分箱体(110)相互扣合形成用于容纳电池单体(20)的容纳腔，所述横梁(121)设置于所述第二部分箱体(120)中，且所述安装结构件(130)设置于所述横梁(121)。
  19. 一种电池(10)，其特征在于，包括：至少一个电池单体(20)，以及
    如权利要求1至18中任一项所述的箱体(100)，所述箱体(100)用于容纳所述至少一个电池单体(20)。
  20. 一种用电装置，其特征在于，包括：根据权利要求19所述的电池(10)，所述电池(10)用于向所述用电装置提供电能。
  21. 一种制备电池的方法(300)，其特征在于，包括：
    提供(S301)至少一个电池单体(20)；
    提供(S302)箱体，所述箱体(100)包括：
    第一部分箱体(110)，设置有第一孔(111)；
    安装结构件(130)，位于所述箱体(100)内，并与所述第一孔(111)对应设置，所述安装结构件(130)用于通过所述第一孔(111)将所述箱体(100)安装至用电装置；
    其中，所述第一孔(111)的边缘设置有刚性结构件(140)，所述刚性结构件(140)与所述安装结构件(130)抵接，以防止所述安装结构件(130)接触于所述第一部分箱体(110)；
    将所述至少一个电池单体(20)容纳(S303)于所述箱体(100)中。
  22. 一种制备电池的装置(400)，其特征在于，包括：
    提供模块(401)，用于提供至少一个电池单体(20)和箱体；
    其中，所述箱体(100)包括：
    第一部分箱体(110)，设置有第一孔(111)；
    安装结构件(130)，位于所述箱体(100)内，并与所述第一孔(111)对应设置，所述安装结构件(130)用于通过所述第一孔(111)将所述箱体(100)安装至用电装置；
    其中，所述第一孔(111)的边缘设置有刚性结构件(140)，所述刚性结构件(140)与所述安装结构件(130)抵接，以防止所述安装结构件(130)接触于所述第一部分箱体(110)；
    安装模块(402)，用于将所述至少一个电池单体(20)容纳于所述箱体(100)中。
PCT/CN2021/133554 2021-11-26 2021-11-26 电池的箱体、电池、用电装置、制备电池的方法和装置 WO2023092457A1 (zh)

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