WO2024055236A1 - 电池、用电装置和电池的制备方法 - Google Patents

电池、用电装置和电池的制备方法 Download PDF

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Publication number
WO2024055236A1
WO2024055236A1 PCT/CN2022/119011 CN2022119011W WO2024055236A1 WO 2024055236 A1 WO2024055236 A1 WO 2024055236A1 CN 2022119011 W CN2022119011 W CN 2022119011W WO 2024055236 A1 WO2024055236 A1 WO 2024055236A1
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WIPO (PCT)
Prior art keywords
battery
output part
electrode output
support member
support
Prior art date
Application number
PCT/CN2022/119011
Other languages
English (en)
French (fr)
Inventor
程启
王红
李全坤
刘江
唐代春
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.)
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Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to PCT/CN2022/119011 priority Critical patent/WO2024055236A1/zh
Publication of WO2024055236A1 publication Critical patent/WO2024055236A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular, to a battery, an electrical device and a method of preparing a battery.
  • a plurality of connected battery cells are usually packed into a casing with a certain strength to form a battery. Since the reliability of the battery is related to the safety of the entire battery and even the electrical device, in the battery design, there are high requirements for the stability of the battery's electrical connection.
  • the present application provides a battery, an electrical device and a method for preparing the battery, which can reduce the risk of tearing at the connection between battery cells.
  • a battery including: a battery module, including a first battery cell and a second battery cell stacked along a first direction.
  • the first battery cell and the second battery cell are located in the battery module.
  • the first end of the group in the second direction, the first electrode output part of the first battery cell and the second electrode output part of the second battery cell are connected, the first direction is the thickness direction of the battery, and the second direction is the battery thickness direction.
  • the length direction; the support member is provided in the first accommodation space formed by the first electrode output part and the second electrode output part, and is used to support the first electrode output part and the second electrode output part.
  • the first electrode output part of the first battery cell is connected to the second electrode output part of the second battery cell.
  • a first accommodation space will be enclosed and formed.
  • the support member includes two support surfaces oppositely arranged along the first direction, and the two support surfaces are respectively used to support the first electrode output part and the second electrode output part.
  • two supporting surfaces of the support member are used to support the first electrode output part and the second electrode output part respectively, which can reduce the risk of tearing between the first electrode output part and the second electrode output part.
  • the support further includes a connection surface, and the two support surfaces respectively extend from both ends of the connection surface in the first direction toward the battery module; the first electrode output part and the second electrode output part are directly connected. , in the second direction, there is a gap between the connecting surface and the first electrode output part and the second electrode output part, or the first electrode output part and the second electrode output part are connected through a connecting piece, and in the second direction, the connection There is a gap between the surface and the connector.
  • the support member has a cavity
  • the support member includes two support walls arranged oppositely along the first direction
  • the support arms are side walls of the cavity
  • the two support surfaces are respectively in the two support walls. Two opposite sides.
  • configuring the support member into a cavity structure can reduce the weight of the support member, thereby reducing the weight of the battery.
  • the support member further includes at least one support rib disposed between the two support walls.
  • a support rib is provided between the first support wall and the second support wall, which can enhance the rigidity of the support member.
  • the battery cell is a bag-shaped battery cell, and in the second direction, the support member extends to the packaging position of the first battery cell and the second battery cell.
  • the battery cells are configured as bag-shaped battery cells, which can reduce the weight of the battery and increase the energy density.
  • the support member extends to the packaging position of the first battery cell and the second battery cell, which can better support the first electrode output part and the second electrode output part.
  • a gap is provided between the support member and the packaging position to facilitate the assembly of the support member into the first accommodation space enclosed by the first electrode output part and the second electrode output part.
  • the battery further includes: a protection member disposed at the first end and away from the battery module relative to the support member, a second accommodation space is formed between the protection member and the support member, and at least part of the first electrode output The second electrode output part and at least part of the second electrode output part are arranged in the second accommodation space.
  • the first electrode output part and the second electrode output part are arranged in the second accommodation space formed between the support member and the protective member, so that the first electrode output part and the second electrode output part can be well protected. department.
  • the protection member includes a first connection part and two protrusions.
  • the two protrusions respectively protrude toward the battery module from both ends of the first connection part in the first direction, at least part of the first
  • the electrode output part and at least part of the second electrode output part are arranged in the second accommodation space formed between the two protrusions and the support member.
  • the support member includes a third end and a fourth end in the third direction, the third end is fixedly connected to the protective member, a first opening is formed between the fourth end and the protective member, and the first opening is In order to guide at least part of the first electrode output part and at least part of the second electrode output part to be assembled into the second accommodation space, the third direction is the width direction of the battery.
  • one end of the support member in the third direction is fixedly connected to the protective member, and the other end forms a first opening with the protective member, so that at least part of the first electrode output part and at least part of the second electrode output part are along the The first opening is inserted into the second accommodation space, which can reduce the assembly complexity of the battery.
  • the support member and the protective member are integrally formed.
  • the support member and the protective member are integrally formed, which can reduce the manufacturing process of the battery.
  • the support member and the protective member are made of the same material.
  • the second accommodation space passes through the protection member in a third direction, and the third direction is the width direction of the battery.
  • the support member and the protective member are provided as two independent components, which can improve the assembly flexibility of the battery.
  • the support member is made of insulating material.
  • the support member is made of at least one insulating material selected from foam, rubber, and plastic.
  • the support member is fixedly connected to the first electrode output part and the second electrode output part respectively by adhesive means.
  • the support member is fixedly connected to the first electrode output part and the second electrode output part by adhesive, which can improve the structural strength between the support member and the first electrode output part and the second electrode output part. , so that the support member can better support the first electrode output part and the second electrode output part.
  • the two protrusions are fixedly connected to the first electrode output part and the second electrode output part respectively through adhesive means.
  • the two convex parts are provided with glue injection holes, and the glue injection holes are used to introduce structural glue between the first electrode output part and the second electrode output part and the two convex parts.
  • the battery further includes: a first end cover, which is provided at the first end, and the first end cover is fixedly connected to the first connection part.
  • the battery further includes: a second end cover, which is provided at the second end of the battery module in the second direction.
  • the second end cover is provided with a positive electrode terminal and a negative electrode terminal.
  • the battery module The positive electrode output part of the battery module is electrically connected to the positive electrode terminal, and the negative electrode output part of the battery module is electrically connected to the negative electrode terminal;
  • the housing is provided with two openings, and the first end cover and the second end cover cover the two openings respectively. The opening is used to enclose the battery module and the support member in the casing.
  • the outer casing of the battery cells in the battery module is a coating film.
  • an electrical device including: the battery in the first aspect and any possible implementation of the first aspect, the battery being used to provide electrical energy to the electrical device.
  • a method of preparing a battery including: connecting a first electrode output part of a first battery cell and a second electrode output part of a second battery cell, the first battery cell and the second battery being The cells are stacked along a first direction, the first battery cell and the second battery cell are located at the first end of the battery in the second direction, the first direction is the thickness direction of the battery, and the second direction is the length direction of the battery;
  • the support member is assembled into the first accommodation space enclosed by the first electrode output part and the second electrode output part, and the support member is used to support the first electrode output part and the second electrode output part.
  • Figure 1 is a schematic structural diagram of a vehicle disclosed in an embodiment of the present application.
  • Figure 2 is a schematic front view of a battery disclosed in an embodiment of the present application.
  • FIG. 3 is a schematic enlarged view of part A in FIG. 2 .
  • FIG. 4 is a schematic front view of a support member in the battery shown in FIG. 2 .
  • FIG. 5 is a schematic assembly diagram of the first end of the battery module according to the embodiment of the present application.
  • Figure 6 is another schematic front view of a battery disclosed in an embodiment of the present application.
  • FIG. 7 is a schematic front view of the protective member in FIG. 6 .
  • Figure 8 is a schematic structural diagram of the support member according to the embodiment of the present application.
  • FIG. 9 is another assembly diagram of the first end of the battery module according to the embodiment of the present application.
  • Figure 10 is a schematic exploded view of the battery according to the embodiment of the present application.
  • Figure 11 is a schematic block diagram of a battery produced according to an embodiment of the present application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • Multiple appearing in this application refers to more than two (including two). Similarly, “multiple groups” refers to two or more groups (including two groups), and “multiple tablets” refers to two or more tablets. (Includes two pieces).
  • 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, etc., which are not limited in the embodiments of this application.
  • the battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, rectangular battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode sheet, a negative electrode sheet and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector that is not coated with the positive electrode active material layer protrudes from the current collector that is 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 cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector that is not coated with the negative electrode active material layer protrudes from the current collector that is coated with the negative electrode active material layer.
  • the current collector coated with the negative active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon.
  • the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the diaphragm can be PP or PE, etc.
  • the electrode assembly may have a rolled structure or a laminated structure, and the embodiments of the present application are not limited thereto.
  • embodiments of the present application provide a battery in which a support member is provided in an accommodation space enclosed by the connection of the electrode output parts of the battery cells at one end of the battery to support the electrode output part. It can reduce the risk of tearing at the connection of battery cells and improve the stability of the electrical connection of the battery.
  • batteries such as mobile phones, portable devices, laptops, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spacecraft, 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.
  • the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or a new energy vehicle.
  • a motor 80, a controller 60 and a battery 100 may be disposed inside the vehicle 1.
  • the controller 60 is used to control the battery 100 to supply power to the motor 80.
  • the battery 100 may be provided at the bottom, front or rear of the vehicle 1 .
  • the battery 100 may be used to supply power to the vehicle 1 .
  • the battery 100 may be used as an operating power source for the vehicle 1 , for the circuit system of the vehicle 1 , for example, to meet the power requirements for starting, navigation, and operation of the vehicle 1 .
  • the battery 100 can not only be used as an operating power source of the vehicle 1 , but also can be used as a driving power source of the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .
  • FIG. 2 shows a schematic front view of the battery 100 according to the embodiment of the present application.
  • FIG. 3 is a schematic enlarged view of part A in FIG. 2 .
  • the battery 100 includes a battery module 110, including a first battery cell 111 and a second battery cell 112 stacked along a first direction Z.
  • the first battery cell 111 and the second battery cell 112 are stacked along the first direction Z.
  • the first electrode output part 111a of the first battery cell 111 and the second electrode output part 112a of the second battery cell 112 are connected; It includes a support member 120, which is provided in the first accommodation space 1002 (see Figure 3) formed by the first electrode output part 111a and the second electrode output part 112a.
  • the support member 120 is used to support the first electrode output part 111a and the second electrode output part 112a. Two-electrode output part 112a.
  • the first direction Z is the thickness direction of the battery 100
  • the second direction X is the length direction of the battery 100
  • the third direction Y is the width direction of the battery 100 .
  • the electrode output part in this application can refer to the part where the tabs penetrate the outer packaging of the battery cell as described above, or can also be understood as the electrical connection piece that is electrically connected to the tabs outside the outer packaging of the battery cell.
  • the application examples do not limit this.
  • connecting the first electrode output part 111a and the second electrode output part 112a may refer to welding the first electrode output part 111a and the second electrode output part 112a.
  • the first electrode output part 111a and the second electrode output part 112a are welded by ultrasonic welding or laser welding.
  • Other connection methods may also be used between the first electrode output part 111a and the second electrode output part 112a.
  • the first electrode output part 111a and the second electrode output part 112a may be electrically connected through conductive glue.
  • the first electrode output part 111a and the second electrode output part 112a may be directly connected, or may be connected through a connector.
  • the first battery cell 111 and the second battery cell 112 are stacked along the first direction Z, the first electrode output part 111a of the first battery cell 111 and the second battery cell 112 After the second electrode output part 112a is connected, it will enclose the first accommodation space 1002.
  • the support 120 By disposing the support 120 in the first accommodation space 1002 to support the first electrode output part 111a and the second electrode output part 112a, it is possible to lower the The risk of tearing between the first electrode output part 111a and the second electrode output part 112a improves the electrical connection stability of the battery 100.
  • multiple battery cells in the battery module 110 may be connected in series, that is, the positive output part of one battery cell is connected to the negative output part of another adjacent battery cell.
  • Multiple battery cells may be arranged in multiple rows along the second direction X.
  • a plurality of battery cells are arranged in two rows along the second direction X.
  • the other end is the first end 1101 shown in FIG. 2 .
  • the accommodation space enclosed by two electrically connected electrode output parts located at either end of the battery module in the second direction X the accommodation space enclosed by two electrically connected electrode output parts located at either end of the battery module in the second direction
  • the support 120 provided by the embodiment of the present application is disposed inside to support the two electrode output parts of the electrical connection.
  • multiple battery cells in the battery module 110 may also be connected in parallel, or multiple battery cells may be connected in mixed connection, that is, first in parallel and then in series, or first in series and then in parallel.
  • the support member 120 includes two supporting surfaces oppositely arranged along the first direction Z, and the two supporting surfaces are respectively used to support the first electrode output part 111a and the second electrode output part 112a.
  • the two supporting surfaces include a first supporting surface 1211 and a second supporting surface 1212.
  • the first supporting surface 1211 is used to support the first electrode output part 111a
  • the second supporting surface 1212 is used to support the second Electrode output part 112a.
  • the two supporting surfaces of the support member 120 are used to respectively support the first electrode output part 111a and the second electrode output part 112a, which can reduce the tearing between the first electrode output part 111a and the second electrode output part 112a. risk of cracking.
  • the support member 120 further includes a connection surface 122 , and two support surfaces respectively extend from both ends of the connection surface 122 in the first direction Z toward the battery module 110 .
  • the first supporting surface 1211 and the second supporting surface 1212 are arranged oppositely along the first direction Z, and the connecting surface 122 connects the first supporting surface 1211 and the second supporting surface 1212 .
  • the first electrode output part 111a and the second electrode output part 112a may be directly connected, that is, the first electrode output part 111a may be bent toward the second electrode output part 112a along the first direction Z, and the second electrode output part 111a may be bent toward the second electrode output part 112a along the first direction Z.
  • 112a may be bent toward the first electrode output part 111a along the first direction Z, so that the first electrode output part 111a is in contact with and connected to the second electrode output part 112a.
  • the second direction X there is a gap between the connection surface 122 and the first electrode output part 111a and the second electrode output part 112a.
  • the first electrode output part 111a and the second electrode output part 112a are connected through a connector.
  • the connector is in a groove shape, and the two side walls of the connector are connected to the first electrode output part 111a and the second electrode output part 112a respectively, and the bottom wall of the connector is opposite to the connection surface 122 and the connection surface 122 There is a gap with the bottom wall of the connector.
  • the support member 120 has a cavity 123 , and the support member 120 includes two support walls arranged oppositely along the first direction Z.
  • the two support walls include a first support wall 1231 and a first support wall 1231 .
  • the two supporting walls are the side walls of the cavity 123, and the two supporting surfaces of the supporting member 120 are respectively two surfaces of the two supporting walls that are away from each other.
  • configuring the support member 120 into a cavity structure can reduce the weight of the support member 120 , thereby reducing the weight of the battery 100 .
  • the support member 120 may further include at least one support rib 1233 disposed between two support walls, namely the first support wall 1231 and the second support wall 1232 .
  • the support member 120 further includes a connecting wall 1234 and at least one supporting rib 1233 protruding from the connecting wall 1234 toward the battery module 110 .
  • the connecting wall 1234 is the bottom wall of the cavity 123 .
  • the support rib 1233 is provided between the first support wall 1231 and the second support wall 1232 to enhance the rigidity of the support member 120 .
  • the battery cells in the embodiments of the present application are bag-shaped battery cells.
  • the battery cells in the embodiments of the present application are soft-pack battery cells.
  • the electrode assembly of the soft-packed battery cell is contained in the packaging bag, and the edges of the packaging bag can be connected through heat-pressure sealing to form a sealing part.
  • the electrode output part extends to the outside of the packaging bag to realize charging and discharging of the battery cell.
  • the support member 120 in the second direction X, extends to the packaging position 1103 of the first battery cell 111 and the second battery cell 112 .
  • the battery cells are configured as bag-shaped battery cells, which can reduce the weight of the battery and increase the energy density.
  • the support member 120 extends to the packaging position of the first battery cell 111 and the second battery cell 112, and can better support the first electrode output part 111a and the second electrode output part 112a.
  • a gap is provided between the support member 120 and the packaging position 1103 to facilitate the assembly of the support member 120 into the first accommodation space 1002 enclosed by the first electrode output part 111a and the second electrode output part 112a.
  • FIG. 6 shows another schematic front view of the battery 100 according to the embodiment of the present application.
  • FIG. 7 is a schematic front view of the protective member 130 in FIG. 6 .
  • the battery 100 further includes: a protection member 130 , which is disposed at the first end 1101 and away from the battery module 110 relative to the support 120 .
  • a second accommodation space 1003 is formed between the protection member 130 and the support 120 , at least Part of the first electrode output part 111a and at least part of the second electrode output part 112a are provided in the second accommodation space 1003.
  • the first electrode output part 111a and the second electrode output part 112a are arranged in the second accommodation space 1003 formed between the support member 120 and the protection member 130, so that the first electrode output part can be well protected. 111a and the second electrode output part 112a.
  • the protection member 130 may include a first connecting portion 1301 and two protrusions including a first protrusion 1302 and a second protrusion 1303 .
  • Two protrusions respectively protrude from both ends of the first connection part 1301 toward the battery module 110 in the first direction Z.
  • At least part of the first electrode output part 111a and at least part of the second electrode output part 112a are provided on the two protrusions. in the second accommodation space 1003 formed between the support member 120 and the support member 120 .
  • FIG. 8 shows a schematic structural diagram of a support member 120 .
  • the support member 120 includes a third end 1201 and a fourth end 1202 in the third direction Y.
  • the third end 1201 is fixedly connected to the protective member 130 , and a first end 1202 is formed between the fourth end 1202 and the protective member 130 .
  • Opening 1203, the first opening 1203 is used to guide at least part of the first electrode output part 111a and at least part of the second electrode output part 112a to be assembled into the second accommodation space 1003.
  • one end of the support 120 in the third direction Y is fixedly connected to the protective member 130, and the other end forms a first opening 1203 with the protective member 130, so that at least part of the first electrode output part 111a and at least part of The second electrode output part 112a is inserted into the second accommodation space 1003 along the first opening 1203, which can reduce the assembly complexity of the battery 100.
  • the support member 120 and the protection member 130 may be integrally formed.
  • the support member 120 and the protective member 130 are integrally formed, which can reduce the manufacturing process of the battery 100 .
  • the support member 120 and the protective member 130 are made of the same material.
  • the support member 120 and the protection member 130 are both made of the same insulating material.
  • the support member 120 and the protection member 130 are both made of plastic material.
  • the second accommodation space 1003 passes through the protection member 130 in the third direction Y.
  • the support member 120 and the protective member 130 are two independent components.
  • the support member 120 When assembling the battery 100, the support member 120 may first be inserted into the first accommodation space 1002 formed by the first electrode output part 111a and the second electrode output part 112a along the third direction Y, and then the protective member 130 may be inserted along the third direction Y.
  • the two directions X or the third direction Y are assembled to the periphery of the first electrode output part 111a and the second electrode output part 112a, so that the first electrode output part 111a and the second electrode output part 112a are disposed on the protective member 130 and the support member 120 formed in the second accommodation space 1003.
  • the support member 120 and the protective member 130 are provided as two independent components, which can improve the assembly flexibility of the battery 100 .
  • the support member 120 may be made of insulating material.
  • the support member 120 may be made of at least one insulating material selected from foam, rubber, and plastic.
  • the support member 120 may be fixedly connected to the first electrode output part 111a and the second electrode output part 112a respectively by adhesive means.
  • the first supporting surface 1211 and the first electrode output part 111a are fixedly connected by adhesive
  • the second supporting surface 1212 and the second electrode output part 112a are fixedly connected by adhesive.
  • the support member 120 is fixedly connected to the first electrode output part 111a and the second electrode output part 112a by adhesive, which can improve the connection between the support member 120 and the first electrode output part 111a and the second electrode output part. 112a, so that the support member 120 can better support the first electrode output part 111a and the second electrode output part 112a.
  • the two protrusions of the protective member 130 are fixedly connected to the first electrode output part 111a and the second electrode output part 112a respectively by adhesive means.
  • the first convex part 1302 and the first electrode output part 111a are fixedly connected through the structural glue 140
  • the second convex part 1303 and the second electrode output part 112a are fixedly connected through the structural glue 140.
  • glue can be dispensed in the gap between the packaging position of the first battery cell 111 and the second battery cell 112 and the two protrusions. , to form structural glue 140.
  • glue injection holes may be provided on the two convex parts, and the structural glue 140 is introduced between the first electrode output part and the second electrode output part and the two convex parts through the glue injection holes.
  • the battery 100 further includes a first end cover 151 disposed with a first end 1101 , and the first end cover 151 is fixedly connected to the first connection portion 1301 of the protection member 130 .
  • FIG. 10 shows a schematic exploded view of the battery 100 in the embodiment of the present application.
  • the battery 100 includes: a battery module 110.
  • the battery module 110 includes a first end 1101 and a second end 1102 in the second direction
  • the first battery cell 111 and the second battery cell 112 are stacked in one direction Z; the connector 1106 is used to electrically connect the first electrode output part 111a of the first battery cell 111 and the second electrode output part 111a of the second battery cell 112.
  • the two-electrode output part 112a; the support 120 is provided in the first accommodation space enclosed by the first electrode output part 111a and the second electrode output part 112a;
  • the housing 160 is provided with two opposite electrodes in the second direction X.
  • the second opening 161 and the third opening 162 There are three openings, for example, the second opening 161 and the third opening 162; the first end cap 151 is provided at the first end 1101; the second end cap 152 is provided at the second end 1102.
  • the first end cap 151 covers the second opening 161 and the second end cap 152 covers the third opening 162 to encapsulate the battery module 110 and the support 120 in the housing 160 .
  • the second end cover 152 is provided with a positive electrode terminal 171 and a negative electrode terminal 172, and the positive electrode output part 1104 of the battery module 110 is electrically connected to the positive electrode terminal 171.
  • the battery module The negative electrode output part 1105 of 110 is electrically connected to the negative electrode terminal 172 .
  • the positive electrode output part 1104 and the positive electrode terminal 171, and the negative electrode output part 1105 and the negative electrode terminal 172 may be directly connected.
  • the positive electrode output part 1104 and the positive electrode terminal 171, and the negative electrode output part 1105 and the negative electrode terminal 172 may be connected through the adapter member 180 shown in FIG. 10 .
  • the battery module 110 further includes a third battery cell 113 and a fourth battery cell 114 connected in series along the second direction X and a fifth battery cell 115 connected in series along the second direction X. and a sixth battery cell 116, wherein the third battery cell 113 and the fifth battery cell 115 are stacked along the first direction Z, and the fourth battery cell 114 and the sixth battery cell 116 are stacked along the first direction Z. set up.
  • the battery 100 further includes a first bracket 191 disposed between the third battery cell 113 and the fourth battery cell 114 and between the fifth battery cell 115 and the sixth battery cell 116 .
  • the first bracket 191 is used to support two electrically connected electrode output parts of the third battery cell 113 and the fourth battery cell 114 , and two electrical connections of the fifth battery cell 115 and the sixth battery cell 116 electrode output part.
  • the battery module 110 further includes a seventh battery cell 117 and an eighth battery cell 118 located at the second end 1102 and stacked along the first direction Z.
  • the unconnected electrode output part of 117 and the unconnected electrode output part of the second battery cell 118 are the positive electrode output part 1104 and the negative electrode output part 1105 of the battery module 110 .
  • the battery 100 further includes a second bracket 192 for supporting the positive electrode output part 1104 and the negative electrode output part 1105.
  • the housing 160 may be a metal housing, for example, the housing 160 may be an aluminum housing.
  • the electrical device may include the battery 100 in the various embodiments described above to provide electrical energy to the electrical device.
  • the electrical device may be a vehicle, ship or spacecraft.
  • the first electrode output part 111a of the first battery cell 111 and the second electrode output part of the second battery cell 112 are stacked along the first direction Z.
  • a support 120 is provided in the first accommodation space 1002 enclosed by 112a to support the first electrode output part 111a and the second electrode output part 112a, thereby reducing the distance between the first electrode output part 111a and the second electrode output part 112a. reduce the risk of tearing and improve the electrical connection stability of the battery 100.
  • the embodiments of the present application also provide a method for preparing a battery.
  • the battery may be the battery 100 described in any of the above embodiments.
  • the preparation method 300 may include part or all of the following content.
  • the first battery cell 111 and the second battery cell 112 are located at the first end 1101 of the battery 100 in the second direction X.
  • the first direction Z is the thickness direction of the battery
  • the second direction X is the length direction of the battery. ;
  • the support member 120 is used to support the first electrode output part 111a and the second electrode output part. 112a.

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

Abstract

本申请实施例提供一种电池、用电装置和电池的制备方法。该电池包括：电池模组，包括沿第一方向堆叠设置的第一电池单体和第二电池单体，第一电池单体和第二电池单体位于电池模组在第二方向上的第一端，第一电池单体的第一电极输出部和第二电池单体的第二电极输出部连接，第一方向为电池的厚度方向，第二方向为电池的长度方向；支撑件，设置在第一电极输出部和第二电极输出部围合形成的第一容纳空间中，用于支撑第一电极输出部和第二电极输出部。本申请实施例的电池、用电装置和电池的制备方法，能够降低电池单体连接处的撕裂风险。

Description

电池、用电装置和电池的制备方法 技术领域
本申请涉及电池技术领域，特别是涉及一种电池、用电装置和电池的制备方法。
背景技术
为了提高电池的容量，通常是将连接的多个电池单体装入具有一定强度的外壳内形成电池。由于电池的工作可靠与否涉及到整个电池乃至用电装置的安全，为此，在电池设计中，对于电池的电连接稳定性具有较高的要求。
发明内容
本申请一种电池、用电装置和电池的制备方法，能够降低电池单体连接处的撕裂风险。
第一方面，提供了一种电池，包括：电池模组，包括沿第一方向堆叠设置的第一电池单体和第二电池单体，第一电池单体和第二电池单体位于电池模组在第二方向上的第一端，第一电池单体的第一电极输出部和第二电池单体的第二电极输出部连接，第一方向为电池的厚度方向，第二方向为电池的长度方向；支撑件，设置在第一电极输出部和第二电极输出部围合形成的第一容纳空间中，用于支撑第一电极输出部和第二电极输出部。
在该实施例中，由于第一电池单体与第二电池单体沿第一方向堆叠设置，故第一电池单体的第一电极输出部与第二电池单体的第二电极输出部连接之后会围合形成第一容纳空间，通过在第一容纳空间内设置支撑件， 以支撑第一电极输出部与第二电极输出部，从而可以降低第一电极输出部与第二电极输出部之间的撕裂风险，提高电池的电连接稳定性。
在一种可能的实现方式中，支撑件包括沿第一方向相对设置的两个支撑面，两个支撑面分别用于支撑第一电极输出部和第二电极输出部。
在该实施例中，采用支撑件的两个支撑面分别支撑第一电极输出部与第二电极输出部，可以降低第一电极输出部与第二电极输出部之间的撕裂风险。
在一种可能的实现方式中，支撑件还包括连接面，两个支撑面分别从连接面在第一方向的两端朝向电池模组延伸；第一电极输出部和第二电极输出部直接连接，在第二方向上，连接面与第一电极输出部和第二电极输出部之间具有间隙，或者第一电极输出部和第二电极输出部通过连接件连接，在第二方向上，连接面与连接件之间具有间隙。
在该实施例中，在第二方向上，支撑件与第一电极输出部和第二电极输出部之间或者支撑件与用于连接第一电极输出部和第二电极输出部的连接件之间具有间隙，可以防止对电极输出部产生的支撑力破坏电极输出部。
在一种可能的实现方式中，支撑件具有空腔，支撑件包括沿第一方向相对设置的两个支撑壁，支撑臂为空腔的侧壁，两个支撑面分别为两个支撑壁中相互背离的两个面。
在该实施例中，将支撑件设置成空腔结构，可以减少支撑件的重量，从而减轻电池的重量。
在一种可能的实现方式中，支撑件还包括设置在两个支撑壁之间的至少一个支撑肋。
在该实施例中，在第一支撑壁和第二支撑壁之间设置支撑肋，能够加强支撑件的刚度。
在一种可能的实现方式中，电池单体为袋状电池单体，在第二方向上，支撑件延伸至第一电池单体和第二电池单体的封装位置。
在该实施例中，将电池单体设置为袋状电池单体，可以降低电池的重量，提高能量密度。另外，支撑件延伸至第一电池单体和第二电池单体的封装位置，能够更好地支撑第一电极输出部和第二电极输出部。
在一种可能的实现方式中，支撑件与封装位置之间具有间隙。
在该实施例中，将支撑件与封装位置之间设置有间隙，便于支撑件装配至第一电极输出部与第二电极输出部所围合的第一容纳空间内。
在一种可能的实现方式中，电池还包括：保护构件，设置在第一端且相对于支撑件远离电池模组，保护构件与支撑件之间形成第二容纳空间，至少部分第一电极输出部和至少部分第二电极输出部设置在第二容纳空间内。
在该实施例中，将第一电极输出部与第二电极输出部设置在支撑件与保护构件之间形成的第二容纳空间内，可以很好地保护第一电极输出部和第二电极输出部。
在一种可能的实现方式中，保护构件包括第一连接部和两个凸部，两个凸部分别从第一连接部在第一方向的两端朝电池模组凸起，至少部分第一电极输出部和至少部分第二电极输出部设置在两个凸部与支撑件之间形成的第二容纳空间内。
在一种可能的实现方式中，支撑件在第三方向上包括第三端和第四端，第三端与保护构件固定连接，第四端与保护构件之间形成第一开口，第一开口用于引导至少部分第一电极输出部和至少部分第二电极输出部装配至第二容纳空间内，第三方向为电池的宽度方向。
在该实施例中，将支撑件在第三方向上的一端与保护构件固定连接，另一端与保护构件形成第一开口，以使得至少部分第一电极输出部和至少 部分第二电极输出部沿着第一开口插入至第二容纳空间内，可以降低电池的装配复杂性。
在一种可能的实现方式中，支撑件和保护构件一体成型。
在该实施例中，将支撑件与保护构件一体成型，可以降低电池的制作工序。
在一种可能的实现方式中，支撑件和保护构件的材质相同。
在一种可能的实现方式中，第二容纳空间在第三方向上贯通保护构件，第三方向为电池的宽度方向。
在该实施例中，将支撑件与保护构件设置为独立的两个部件，能够提高电池的装配灵活性。
在一种可能的实现方式中，支撑件是由绝缘材料构成。
在一种可能的实现方式中，支撑件是由泡棉、橡胶和塑胶中的至少一种绝缘材料构成。
在一种可能的实现方式中，支撑件分别与第一电极输出部和第二电极输出部通过胶粘的方式固定连接。
在该实施例中，将支撑件与第一电极输出部和第二电极输出部通过胶粘的方式固定连接，可以提高支撑件与第一电极输出部和第二电极输出部之间的结构强度，从而使得支撑件能够更好地支撑第一电极输出部和第二电极输出部。
在一种可能的实现方式中，两个凸部分别与第一电极输出部和第二电极输出部通过胶粘的方式固定连接。
在一种可能的实现方式中，两个凸部上设置有注胶孔，注胶孔用于将结构胶导入第一电极输出部和第二电极输出部与两个凸部之间。
在一种可能的实现方式中，电池还包括：第一端盖，设置在第一端，第一端盖与第一连接部固定连接。
在一种可能的实现方式中，电池还包括：第二端盖，设置在电池模组在第二方向的第二端，第二端盖上设置有正电极端子和负电极端子，电池模组的正电极输出部与正电极端子电连接，电池模组的负电极输出部与负电极端子电连接；壳体，设置有两个开口，第一端盖和第二端盖分别盖合两个开口，以将电池模组和支撑件封装在壳体内。
在一种可能的实现方式中，电池模组中的电池单体的外壳为包覆膜。
第二方面，提供了一种用电装置，包括：第一方面以及第一方面中任一种可能的实现方式中的电池，该电池用于为用电装置提供电能。
第三方面，提供了一种制备电池的方法，包括：将第一电池单体的第一电极输出部和第二电池单体的第二电极输出部连接，第一电池单体和第二电池单体沿第一方向堆叠设置，第一电池单体和第二电池单体位于电池在第二方向上的第一端，第一方向为电池的厚度方向，第二方向为电池的长度方向；将支撑件装配至第一电极输出部和第二电极输出部围合形成的第一容纳空间中，支撑件用于支撑第一电极输出部和第二电极输出部。
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示意性主视图。
图3是图2中A部分的示意性放大图。
图4是图2所示电池中的一种支撑件的示意性主视图。
图5为本申请实施例的电池模组的第一端的装配示意图。
图6是本申请一实施例公开的一种电池的另一示意性主视图。
图7是图6中保护构件的示意性主视图。
图8是本申请实施例的支撑件的一种示意性结构图。
图9是本申请实施例的电池模组的第一端的另一种装配示意图。
图10是本申请实施例的电池的示意性爆照图。
图11是本申请实施例的制备电池的示意性框图。
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。
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。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请中出现的“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
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PP或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。
为了提高电池的容量，通常是将多个电池单体进行串联、并联或者混联形成电池模组之后，再装入具有一定强度的外壳内。在电池使用过程中，电池单体之间的连接处会晃动，存在撕裂风险。
有鉴于此，本申请实施例提供了一种电池，在由位于电池的长度方向上的一端的电池单体的电极输出部连接所围合的容纳空间内设置支撑件，以支撑电极输出部，能够降低电池单体的连接处的撕裂风险，提高电池的电连接稳定性。
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用电装置，还可以适用于所有使用电池的设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
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80，控制器60以及电池100，控制器60用来控制电池100为马达80的供 电。例如，在车辆1的底部或车头或车尾可以设置电池100。电池100可以用于车辆1的供电，例如，电池100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100不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提供驱动动力。
图2示出了本申请实施例的电池100的一种示意性主视图。图3是图2中A部分的示意性放大图。如图2所示，电池100包括电池模组110，包括沿第一方向Z堆叠设置的第一电池单体111和第二电池单体112，第一电池单体111和第二电池单体112位于电池模组110在第二方向X上的第一端1101，第一电池单体111的第一电极输出部111a和第二电池单体112的第二电极输出部112a连接；该电池100还包括支撑件120，设置在第一电极输出部111a和第二电极输出部112a围合形成的第一容纳空间1002(参见图3)，该支撑件120用于支撑第一电极输出部111a和第二电极输出部112a。
为了便于描述，此处先对各个方向进行定义。第一方向Z为电池100的厚度方向，第二方向X为电池100的长度方向，第三方向Y为电池100的宽度方向。
本申请中的电极输出部可以是指上文中所描述的极耳穿出电池单体外包装的部分，也可以理解成在电池单体的外包装外部与极耳电连接的电连接片，本申请实施例对此不作限定。
在本申请实施例中，第一电极输出部111a与第二电极输出部112a连接可以是指第一电极输出部111a与第二电极输出部112a焊接。例如，第一电极输出部111a与第二电极输出部112a通过超声波焊接或者激光焊接。第一电极输出部111a与第二电极输出部112a之间还可以采用其他连 接方式，例如，第一电极输出部111a与第二电极输出部112a可以通过导电胶电连接。可选地，第一电极输出部111a与第二电极输出部112a可以直接连接，或者也可以通过一个连接件连接。
在该实施例中，由于第一电池单体111与第二电池单体112沿第一方向Z堆叠设置，故第一电池单体111的第一电极输出部111a与第二电池单体112的第二电极输出部112a连接之后会围合形成第一容纳空间1002，通过在第一容纳空间1002内设置支撑件120，以支撑第一电极输出部111a与第二电极输出部112a，从而可以降低第一电极输出部111a与第二电极输出部112a之间的撕裂风险，提高电池100的电连接稳定性。
可选地，电池模组110中的多个电池单体可以串联连接，即一个电池单体的正极输出部与相邻的另一个电池单体的负极输出部连接。多个电池单体可以沿第二方向X呈多排设置。例如，如图2所示，多个电池单体沿第二方向X呈两排设置。其中，位于电池模组110在第二方向X的一端的电极输出部通过与电极端子电连接引出外壳，而位于电池模组110在第二方向X的另一端的电极输出部电连接且无需引出外壳。例如，该另一端为图2所示的第一端1101。对于多个电池单体沿第二方向X呈两排以上设置的电池模组，可以在位于电池模组在第二方向X的任一端的两个电连接的电极输出部所围合的容纳空间内设置本申请实施例所提供的支撑件120，以支撑该电连接的两个电极输出部。
在其他实施例中，电池模组110中的多个电池单体也可以并联连接，或者多个电池单体混联连接，即先并联再串联，或者先串联再并联。
可选地，该支撑件120包括沿第一方向Z相对设置的两个支撑面，该两个支撑面分别用于支撑第一电极输出部111a和第二电极输出部112a。例如，如图3所示，两个支撑面包括第一支撑面1211和第二支撑面1212，第一支撑面1211用于支撑第一电极输出部111a，第二支撑面1212用于支 撑第二电极输出部112a。
在该实施例中，采用支撑件120的两个支撑面分别支撑第一电极输出部111a与第二电极输出部112a，可以降低第一电极输出部111a与第二电极输出部112a之间的撕裂风险。
可选地，如图3所示，该支撑件120还包括连接面122，两个支撑面分别从连接面122在第一方向Z的两端朝向电池模组110延伸。第一支撑面1211与第二支撑面1212沿第一方向Z相对设置，且连接面122连接第一支撑面1211与第二支撑面1212。
可选地，第一电极输出部111a与第二电极输出部112a可以直接连接，即第一电极输出部111a可以沿第一方向Z朝向第二电极输出部112a弯折，而第二电极输出部112a可以沿第一方向Z朝向第一电极输出部111a弯折，并使得第一电极输出部111a与第二电极输出部112a相接触并连接。在第二方向X上，连接面122与第一电极输出部111a与第二电极输出部112a之间具有间隙。可选地，第一电极输出部111a与第二电极输出部112a通过连接件连接。例如，连接件呈凹槽型，连接件的两个侧壁分别与第一电极输出部111a和第二电极输出部112a连接，连接件的底壁则与连接面122相对设置且该连接面122与连接件的底壁之间具有间隙。
在该实施例中，在第二方向X上，支撑件120与第一电极输出部111a和第二电极输出部112a之间或者支撑件120与用于连接第一电极输出部111a和第二电极输出部112a的连接件之间具有间隙，可以防止对电极输出部产生的支撑力以破坏电极输出部。
可选地，如图4所示，支撑件120具有空腔123，支撑件120包括沿第一方向Z相对设置的两个支撑壁，例如，该两个支撑壁包括第一支撑壁1231和第二支撑壁1232。两个支撑壁为空腔123的侧壁，支撑件120的两个支撑面分别为两个支撑壁中相互背离的两个面。
在该实施例中，将支撑件120设置成空腔结构，可以减少支撑件120的重量，从而减轻电池100的重量。
可选地，如图4所示，支撑件120还可以包括设置在两个支撑壁，即第一支撑壁1231和第二支撑壁1232，之间的至少一个支撑肋1233。换言之，支撑件120还包括连接壁1234以及从连接壁1234朝向电池模组110凸起的至少一个支撑肋1233，连接壁1234为空腔123的底壁。
在该实施例中，在第一支撑壁1231和第二支撑壁1232之间设置支撑肋1233，能够加强支撑件120的刚度。
可选地，本申请实施例中的电池单体为袋状电池单体。换句话说，本申请实施例中的电池单体为软包电池单体。通常，软包电池单体的电极组件收容在包装袋内，而包装袋的边缘可通过热压密封连接，从而形成密封部，电极输出部延伸到包装袋的外部，实现电池单体的充放电。可选地，如图5所示，在第二方向X上，支撑件120延伸至第一电池单体111和第二电池单体112的封装位置1103。
在该实施例中，将电池单体设置为袋状电池单体，可以降低电池的重量，提高能量密度。另外，支撑件120延伸至第一电池单体111和第二电池单体112的封装位置，能够更好地支撑第一电极输出部111a和第二电极输出部112a。
可选地，如图5所示，支撑件120与第一电池单体111与第二电池单体112的封装位置1103之间具有间隙。
在该实施例中，将支撑件120与封装位置1103之间设置有间隙，便于支撑件120装配至第一电极输出部111a与第二电极输出部112a所围合的第一容纳空间1002内。
图6示出了本申请实施例的电池100的另一种示意性主视图。图7是图6中的保护构件130的示意性主视图。如图6所示，电池100还包括： 保护构件130，设置在第一端1101且相对于支撑件120远离电池模组110，保护构件130与支撑件120之间形成第二容纳空间1003，至少部分第一电极输出部111a与至少部分第二电极输出部112a设置在第二容纳空间1003。
在该实施例中，将第一电极输出部111a与第二电极输出部112a设置在支撑件120与保护构件130之间形成的第二容纳空间1003内，可以很好地保护第一电极输出部111a和第二电极输出部112a。
可选地，如图7所示，该保护构件130可以包括第一连接部1301和两个凸部，该两个凸部包括第一凸部1302和第二凸部1303。两个凸部分别从第一连接部1301在第一方向Z的两端朝电池模组110凸起，至少部分第一电极输出部111a和至少部分第二电极输出部112a设置在两个凸部与支撑件120之间形成的第二容纳空间1003内。
图8示出了一种支撑件120的示意性结构图。如图8所示，支撑件120在第三方向Y上包括第三端1201和第四端1202，第三端1201与保护构件130固定连接，第四端1202与保护构件130之间形成第一开口1203，第一开口1203用于引导至少部分第一电极输出部111a和至少部分第二电极输出部112a装配至第二容纳空间1003内。
在该实施例中，将支撑件120在第三方向Y上的一端与保护构件130固定连接，另一端与保护构件130形成第一开口1203，以使得至少部分第一电极输出部111a和至少部分第二电极输出部112a沿着第一开口1203插入至第二容纳空间1003内，可以降低电池100的装配复杂性。
可选地，在本申请实施例中，支撑件120与保护构件130可以一体成型。
在该实施例中，将支撑件120与保护构件130一体成型，可以降低电池100的制作工序。
可选地，在本申请实施例中，支撑件120与保护构件130的材质相 同。可选地，支撑件120与保护构件130均为同一种绝缘材质，例如，支撑件120与保护构件130均为塑胶材质。
可选地，在另一种实施例中，第二容纳空间1003在第三方向Y上贯通保护构件130。换言之，支撑件120与保护构件130为独立的两个部件。
在装配电池100时，可以先将支撑件120沿第三方向Y插入至第一电极输出部111a和第二电极输出部112a围合形成的第一容纳空间1002内，然后将保护构件130沿第二方向X或第三方向Y装配至第一电极输出部111a与第二电极输出部112a的外围，以使得第一电极输出部111a与第二电极输出部112a设置在保护构件130与支撑件120形成的第二容纳空间1003内。
在该实施例中，将支撑件120与保护构件130设置为独立的两个部件，能够提高电池100的装配灵活性。
可选地，在本申请实施例中，支撑件120可以是由绝缘材料构成。例如，该支撑件120可以是由泡棉、橡胶和塑胶中的至少一种绝缘材料构成。
可选地，在本申请实施例中，支撑件120可以分别与第一电极输出部111a和第二电极输出部112a通过胶粘的方式固定连接。例如，第一支撑面1211与第一电极输出部111a通过胶粘的方式固定连接，第二支撑面1212与第二电极输出部112a通过胶粘的方式固定连接。
在该实施例中，将支撑件120与第一电极输出部111a和第二电极输出部112a通过胶粘的方式固定连接，可以提高支撑件120与第一电极输出部111a和第二电极输出部112a之间的结构强度，从而使得支撑件120能够更好地支撑第一电极输出部111a和第二电极输出部112a。
可选地，如图9所示，保护构件130的两个凸部分别与第一电极输 出部111a和第二电极输出部112a通过胶粘的方式固定连接。例如，第一凸部1302与第一电极输出部111a通过结构胶140固定连接，第二凸部1303与第二电极输出部112a通过结构胶140固定连接。在一种实施例中，可以在将支撑件120和保护构件130装配好之后，在第一电池单体111和第二电池单体112的封装位置与两个凸部之间的间隙进行点胶，以形成结构胶140。在另一种实施例中，可以在两个凸部上设置注胶孔，通过注胶孔将结构胶140导入至第一电极输出部和第二电极输出部与两个凸部之间。
可选地，如图6和图9所示，电池100还包括第一端盖151，设置第一端1101，第一端盖151与保护构件130的第一连接部1301固定连接。
图10示出了本申请实施例中电池100的一种示意性爆照图。如图10所示，电池100包括：电池模组110，电池模组110在第二方向X上包括第一端1101和第二端1102，电池模组110包括设置在第一端1101且沿第一方向Z堆叠设置的第一电池单体111和第二电池单体112；连接件1106，用于电连接第一电池单体111的第一电极输出部111a和第二电池单体112的第二电极输出部112a；支撑件120，设置在第一电极输出部111a和第二电极输出部112a所围合的第一容纳空间内；壳体160，在第二方向X上设置有相对的两个开口，例如，第二开口161和第三开口162；第一端盖151，设置于第一端1101；第二端盖152，设置于第二端1102。其中，第一端盖151盖合第二开口161并且第二端盖152盖合第三开口162，以将电池模组110和支撑件120封装在壳体160内。
可选地，如图10所示，该第二端盖152上设置有正电极端子171和负电极端子172，电池模组110的正电极输出部1104与正电极端子171电连接，电池模组110的负电极输出部1105与负电极端子172电连接。在一种可能的实施例中，正电极输出部1104与正电极端子171，以及负电 极输出部1105与负电极端子172可以直接连接。在另一种可能的实施例中，正电极输出部1104与正电极端子171，以及负电极输出部1105与负电极端子172可以通过图10所示的转接构件180连接。
可选地，如图10所示，电池模组110还包括沿第二方向X串联的第三电池单体113和第四电池单体114以及沿第二方向X串联的第五电池单体115和第六电池单体116，其中，第三电池单体113和第五电池单体115沿第一方向Z堆叠设置，第四电池单体114和第六电池单体116沿第一方向Z堆叠设置。电池100还包括第一支架191，该第一支架191设置在第三电池单体113与第四电池单体114之间，以及第五电池单体115与第六电池单体116之间。该第一支架191用于支撑第三电池单体113和第四电池单体114的两个电连接的电极输出部，以及第五电池单体115和第六电池单体116的两个电连接的电极输出部。
可选地，如图10所示，电池模组110还包括位于第二端1102且沿第一方向Z堆叠设置的第七电池单体117和第八电池单体118，该第七电池单体117的未连接的电极输出部和第二电池单体118的未连接的电极输出部即为电池模组110的正电极输出部1104和负电极输出部1105。该电池100还包括第二支架192，第二支架192用于支撑正电极输出部1104和负电极输出部1105。
可选地，壳体160可以是金属壳，例如，壳体160可以是铝壳。
本申请一个实施例还提供了一种用电装置，用电装置可以包括前述各种实施例中的电池100，以用于为用电装置提供电能。可选地，用电装置可以为车辆、船舶或航天器。
通过在用电装置中设置前述实施例的电池100，通过在沿第一方向Z堆叠设置的第一电池单体111的第一电极输出部111a和第二电池单体112的第二电极输出部112a所围合的第一容纳空间1002内设置支撑件120， 以支撑第一电极输出部111a与第二电极输出部112a，从而可以降低第一电极输出部111a与第二电极输出部112a之间的撕裂风险，提高电池100的电连接稳定性。
本申请实施例还提供了一种电池的制备方法。可选地，该电池可以是上述任一种实施例所描述的电池100。如图11所示，该制备方法300可以包括以下部分或全部内容。
S310，将第一电池单体111的第一电极输出部111a和第二电池单体112的第二电极输出部112a连接，第一电池单体111和第二电池单体111沿第一方向Z堆叠设置，第一电池单体111和第二电池单体112位于电池100在第二方向X上的第一端1101，第一方向Z为电池的厚度方向，第二方向X为电池的长度方向；
S320，将支撑件120装配至第一电极输出部111a和第二电极输出部112a围合形成的第一容纳空间1002中，支撑件120用于支撑第一电极输出部111a和第二电极输出部112a。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (23)

  1. 一种电池(100)，其特征在于，包括：
    电池模组(110)，包括沿第一方向(Z)堆叠设置的第一电池单体(111)和第二电池单体(112)，所述第一电池单体(111)和所述第二电池单体(112)位于所述电池模组(110)在第二方向(X)上的第一端(1101)，所述第一电池单体(111)的第一电极输出部(111a)和所述第二电池单体(112)的第二电极输出部(112a)连接，所述第一方向(Z)为所述电池(100)的厚度方向，所述第二方向(X)为所述电池(100)的长度方向；
    支撑件(120)，设置在所述第一电极输出部(111a)和所述第二电极输出部(112a)围合形成的第一容纳空间(1002)中，用于支撑所述第一电极输出部(111a)和所述第二电极输出部(112a)。
  2. 根据权利要求1所述的电池(100)，其特征在于，所述支撑件(120)包括沿所述第一方向(Z)相对设置的两个支撑面(1211/1212)，所述两个支撑面(1211/1212)分别用于支撑所述第一电极输出部(111a)和所述第二电极输出部(112a)。
  3. 根据权利要求2所述的电池(100)，其特征在于，所述支撑件(120)还包括连接面(122)，所述两个支撑面(1211/1212)分别从所述连接面(122)在所述第一方向(Z)的两端朝向所述电池模组(110)延伸；
    所述第一电极输出部(111a)和所述第二电极输出部(112a)直接连接，在所述第二方向(X)上，所述连接面(122)与所述第一电极输出部(111a)和所述第二电极输出部(112a)之间具有间隙，或者
    所述第一电极输出部(111a)和所述第二电极输出部(112a)通过连接件连接，在所述第二方向(X)上，所述连接面(122)与所述连接件之间具有间隙。
  4. 根据权利要求2或3所述的电池(100)，其特征在于，所述支撑件(120)具有空腔(123)，所述支撑件(120)包括沿所述第一方向(Z)相对设置的两个支撑壁(1231/1232)，所述两个支撑壁(1231/1232)为所述空腔(123)的侧壁，所述两个支撑面(1211/1212)分别为所述两个支撑壁(1231/1232)中相互背离的两个面。
  5. 根据权利要求4所述的电池(100)，其特征在于，所述支撑件(120)还包括设置在所述两个支撑壁(1231/1232)之间的至少一个支撑肋(1233)。
  6. 根据权利要求1至5中任一项所述的电池(100)，其特征在于，所述电池单体为袋状电池单体，在所述第二方向(X)上，所述支撑件(120)延伸至所述第一电池单体(111)和所述第二电池单体(112)的封装位置(1103)。
  7. 根据权利要求6所述的电池(100)，其特征在于，所述支撑件(120)与所述封装位置(1103)之间具有间隙。
  8. 根据权利要求1至7中任一项所述的电池(100)，其特征在于，所述电池(100)还包括：
    保护构件(130)，设置在所述第一端(1101)且相对于所述支撑件(120)远离所述电池模组(110)，所述保护构件(130)与所述支撑件(120)之间形成第二容纳空间(1003)，至少部分所述第一电极输出部(111a)和至少部分所述第二电极输出部(112a)设置在所述第二容纳空间(1003)内。
  9. 根据权利要求8所述的电池(100)，其特征在于，所述保护构件(130)包括第一连接部(1301)和两个凸部(1302/1303)，所述两个凸部(1302/1303)分别从所述第一连接部(1301)在所述第一方向(Z)的两端朝所述电池模组(110)凸起，至少部分所述第一电极输出部(111a)和至少部分所述第二电极输出部(112a)设置在所述两个凸部(1302/1303)与所述支撑件(120)之间形成的所述第二容纳空间(1003)内。
  10. 根据权利要求9所述的电池(100)，其特征在于，所述支撑件(120)在第三方向(Y)上包括第三端(1201)和第四端(1202)，所述第三端(1201)与所述保护构件(130)固定连接，所述第四端(1202)与所述保护构件(130)之间形成第一开口(1203)，所述第一开口(1203)用于引导至少部分所述第一电极输出部(111a)和至少部分所述第二电极输出部(112a)装配至所述第二容纳空间(1003)内，所述第三方向(Y)为所述电池(100)的宽度方向。
  11. 根据权利要求9或10所述的电池(100)，其特征在于，所述支撑件(120)和所述保护构件(130)一体成型。
  12. 根据权利要求11所述的电池(100)，其特征在于，所述支撑件(120)和所述保护构件(130)的材质相同。
  13. 根据权利要求9所述的电池(100)，其特征在于，所述第二容纳空间(1003)在第三方向(Y)上贯通所述保护构件(130)，所述第三方向(Y)为所述电池(100)的宽度方向。
  14. 根据权利要求13所述的电池(100)，其特征在于，所述支撑件(120)是由绝缘材料构成。
  15. 根据权利要求14所述的电池(100)，其特征在于，所述支撑件(120)是由泡棉、橡胶和塑胶中的至少一种绝缘材料构成。
  16. 根据权利要求13至15中任一项所述的电池(100)，其特征在于，所述支撑件(120)分别与所述第一电极输出部(111a)和所述第二电极输出部(112a)通过胶粘的方式固定连接。
  17. 根据权利要求9至16中任一项所述的电池(100)，其特征在于，所述两个凸部(1302/1303)分别与所述第一电极输出部(111a)和所述第二电极输出部(112a)通过胶粘的方式固定连接。
  18. 根据权利要求17所述的电池(100)，其特征在于，所述两个凸部(1302/1303)上设置有注胶孔，所述注胶孔用于将结构胶(140)导入所述第一电极输出部(111a)和所述第二电极输出部(112a)与所述两个凸部(1302/1303)之间。
  19. 根据权利要求9至18中任一项所述的电池(100)，其特征在于，所述电池(100)还包括：
    第一端盖(151)，设置在所述第一端(1101)，所述第一端(1101)盖(151)与所述第一连接部(1301)固定连接。
  20. 根据权利要求19所述的电池(100)，其特征在于，所述电池(100)还包括：
    第二端盖(152)，设置在所述电池模组(110)在所述第二方向(X)的第二端(1102)，所述第二端盖(152)上设置有正电极端子和负电极端子，所述电池模组(110)的正电极输出部与所述正电极端子电连接，所述电池模组(110)的负电极输出部与所述负电极端子电连接；
    壳体，设置有两个开口(161/162)，所述第一端盖(151)和所述第二端盖(152)分别盖合所述两个开口(161/162)，以将所述电池模组(110)和所述支撑件(120)封装在所述壳体内。
  21. 根据权利要求1至19中任一项所述的电池(100)，其特征在于，所述电池模组(110)中的电池单体的外壳为包覆膜。
  22. 一种用电装置，其特征在于，包括如权利要求1至21中任一项所述的电池(100)，所述电池(100)用于为所述用电装置提供电能。
  23. 一种制备电池(100)的方法，其特征在于，包括：
    将第一电池单体(111)的第一电极输出部(111a)和第二电池单体(112)的第二电极输出部(112a)连接，所述第一电池单体(111)和所述第二电池单体(112)沿第一方向(Z)堆叠设置，所述第一电池单体(111)和所述第二电池单体(112)位于所述电池在第二方向(X)上的第一端(1101)，所述第一方向(Z)为所述电池(100)的厚度方向，所述第二方向(X)为所述电池(100)的长度方向；
    将支撑件(120)装配至所述第一电极输出部(111a)和所述第二电极输出部(112a)围合形成的第一容纳空间(1002)中，所述支撑件(120)用于支撑所述第一电极输出部(111a)和所述第二电极输出部(112a)。
PCT/CN2022/119011 2022-09-15 2022-09-15 电池、用电装置和电池的制备方法 WO2024055236A1 (zh)

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Publication number Priority date Publication date Assignee Title
KR20160071900A (ko) * 2014-12-12 2016-06-22 주식회사 엘지화학 전지모듈
CN209747582U (zh) * 2018-12-29 2019-12-06 深圳市德兰明海科技有限公司 一种单串电池模组及多串电池模组
JP2020170619A (ja) * 2019-04-02 2020-10-15 積水化学工業株式会社 蓄電素子モジュール、蓄電素子ユニット、建物および収容体
CN214898789U (zh) * 2020-12-24 2021-11-26 恒大新能源技术(深圳)有限公司 电芯组件及电池模组

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160071900A (ko) * 2014-12-12 2016-06-22 주식회사 엘지화학 전지모듈
CN209747582U (zh) * 2018-12-29 2019-12-06 深圳市德兰明海科技有限公司 一种单串电池模组及多串电池模组
JP2020170619A (ja) * 2019-04-02 2020-10-15 積水化学工業株式会社 蓄電素子モジュール、蓄電素子ユニット、建物および収容体
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