WO2019141129A1 - 电池、电池组以及汽车 - Google Patents

电池、电池组以及汽车 Download PDF

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Publication number
WO2019141129A1
WO2019141129A1 PCT/CN2019/071169 CN2019071169W WO2019141129A1 WO 2019141129 A1 WO2019141129 A1 WO 2019141129A1 CN 2019071169 W CN2019071169 W CN 2019071169W WO 2019141129 A1 WO2019141129 A1 WO 2019141129A1
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WO
WIPO (PCT)
Prior art keywords
battery
pole
tab
outer casing
shaped plate
Prior art date
Application number
PCT/CN2019/071169
Other languages
English (en)
French (fr)
Inventor
鲁鹏
蒋露霞
王信月
杨珂利
Original Assignee
比亚迪股份有限公司
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 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to US16/963,113 priority Critical patent/US11605858B2/en
Priority to KR1020207023205A priority patent/KR20200106538A/ko
Priority to EP19741083.0A priority patent/EP3742524B1/en
Priority to JP2020539849A priority patent/JP7495879B2/ja
Publication of WO2019141129A1 publication Critical patent/WO2019141129A1/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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of batteries, and relates to a battery, a battery pack, and an automobile.
  • a battery is generally a space for a cup, a tank or other container or a composite container containing an electrolyte and a metal electrode to generate an electric current, and a device capable of converting chemical energy into electrical energy, having a positive electrode and a negative electrode.
  • the battery includes a casing and a battery core enclosed in the casing, wherein the casing includes a casing and a sealing cover covering the casing, and the pole of the battery is connected to the sealing cover through a hole provided in the sealing cover, and The positive and negative ear are respectively taken out from the battery core.
  • the positive and negative poles of the battery are insulated from the outer casing of the battery, the current flow of the battery is from the positive pole to the positive ear, then from the positive ear to the battery, and then by the electricity.
  • the core flows to the negative electrode column, which causes the current of the battery to be non-uniform, and the heat generation of the battery is not uniform.
  • the positive and negative poles in the existing battery are insulated from the outer casing of the battery, the structure of the pole mounted on the outer casing is complicated, resulting in an increase in the manufacturing cost of the battery.
  • the current repeatedly flows through the battery cell, so that the battery core is extremely easy to generate heat, and the heat is not easily emitted, thereby reducing the service life of the battery.
  • the present application aims to solve at least one of the technical problems in the related art to some extent.
  • Another object of the present application is to propose a battery pack.
  • Still another object of the present application is to propose a car.
  • a first aspect of the present application provides a battery including a housing having a sealed chamber, a battery core enclosed in the sealed chamber, and first and second poles respectively mounted on the housing a column, wherein the first pole is electrically connected to the outer casing, the second pole is insulated from the outer casing, and the battery further includes first and second poles respectively drawn from the battery core An ear, wherein the first tab is electrically connected to the outer casing, the first tab is electrically connected to the first pole through the outer casing, the second pole and the second pole Electrical connection.
  • the first pole and the first pole drawn from the battery are electrically connected to the outer casing, that is, the first pole is electrically connected to the first pole through the outer casing, thereby not only making the battery
  • the battery's current is uniform and the battery is evenly heated.
  • the heat of the battery can be dissipated through the outer casing, thereby improving the heat dissipation area of the battery, and correspondingly improving the service life and safety of the battery.
  • the mounting structure of the pole mounted on the outer casing is relatively simple, which reduces the manufacturing cost of the battery.
  • the internal current of the battery is relatively uniform
  • the heat of the battery is relatively uniform
  • the heat generated inside the battery can be radiated outward through the outer casing of the battery, thereby improving the service life of the battery, and at the same time, the pole and the battery of the battery.
  • the connection structure of the outer casing is relatively simple overall, which reduces the manufacturing cost of the battery.
  • the first tab is drawn from one end of the cell and the second tab is drawn from the other end of the cell.
  • the first tab is electrically coupled to the housing by a first connector.
  • the first connector includes a first U-shaped plate, the closed end of the first U-shaped plate is disposed on the outer casing, and the open end of the first U-shaped plate faces the The airtight chamber is connected to the wall of the first U-shaped plate forming the opening.
  • the first connector includes a first U-shaped plate and a first lead-out piece, and a closed end of the first U-shaped plate is disposed on the outer casing, the first U-shaped plate Opening end of the first tab is electrically connected to the first U-shaped board through the first lead piece; one end of the first lead piece is connected to the first tab The other end of the first lead piece is connected to the wall of the first U-shaped plate forming the opening.
  • the second tab is electrically connected to the second pole by a second connector.
  • the second connector includes a second U-shaped plate, the closed end of the second U-shaped plate is connected to the second pole, and the opening of the second U-shaped plate The end faces the closed chamber, and the second tab is attached to the wall of the second U-shaped plate forming the opening.
  • the second connector includes a second U-shaped plate and a second extraction piece, the closed end of the second U-shaped plate is connected to the second pole, the second The open end of the U-shaped plate faces the closed chamber, and the second tab is electrically connected to the second U-shaped plate through the second lead piece, one end of the second lead piece and the second The tab is connected, and the other end of the second lead piece is connected to the wall of the second U-shaped plate forming the opening.
  • the outer casing includes a cylindrical body formed with an open end at each end, a first sealing cover disposed at a lower end of the cylindrical body, and a second sealing cover disposed at an upper end of the cylindrical body;
  • the first tab is disposed at a lower end of the battery core, and the second tab is disposed at an upper end of the battery core.
  • the first pole and the second pole are both mounted on the second sealing cover.
  • the first pole is a positive pole and the second pole is a negative pole.
  • Embodiments of the second aspect of the present application provide a battery pack including the battery provided by the present application, the battery pack further including an external connector capable of electrically connecting a plurality of the batteries. Electrically connecting a plurality of batteries provided in the present application to assemble into a battery pack can make the current in the battery pack uniform, and make the overall heat generation of the battery pack uniform, and at the same time, the heat of the battery pack is easily dissipated, and the battery pack is improved. Service life and safety of use.
  • the third aspect of the present application provides an automobile, characterized in that the battery pack provided by the present application is disposed in the automobile. Applying the battery pack provided by the present application to an automobile can provide a uniform current to the automobile and can improve the safety of use of the automobile.
  • FIG. 1 is a schematic view showing the overall structure of a battery according to an embodiment of the present application.
  • Figure 2 is a side view showing the structure of the battery shown in Figure 1;
  • Figure 3 is a cross-sectional structural view taken along line A-A of Figure 2;
  • Figure 4 is a partial structural view of the first sealing cover of the battery shown in Figure 1;
  • FIG. 5 is a partial structural diagram of the battery cell of the battery shown in FIG. 1, wherein a first lead-out piece and a second lead-out piece are respectively connected to the two tabs of the battery core;
  • Figure 6 is a schematic illustration of an automobile of one embodiment of the present application.
  • orientation words used such as “up, down, left, and right" are generally used in conjunction with the orientation shown in the drawings and the orientation in the actual application, “inside, “Outer” means the inside and outside of the outline of the part.
  • the present application provides a battery 1 which, as shown in FIG. 1, FIG. 2 and FIG. 3, includes a housing 10 having a sealed chamber 100, a battery cell 11 enclosed in a sealed chamber 100, and respectively mounted on The first pole 12a and the second pole 12b of the outer casing 10, wherein the first pole 12a is electrically connected to the outer casing 10, the second pole 12b is insulated from the outer casing 10, and the battery 1 further includes a first lead from the electric core 11 a first tab 13a and a second tab 13b, wherein the first tab 13a is electrically connected to the outer casing 10, and the first tab 13a is electrically connected to the first pole 12a via the outer casing 10, and the second tab 13b and the second pole
  • the column 12b is electrically connected.
  • the first tab 13a is electrically connected to the first pole 12a through the outer casing 10;
  • the current flow in the battery 1 may be: the first pole 12a ⁇ the outer casing 10 ⁇ the first pole 13a ⁇ the battery core 11 ⁇ the second pole 13b ⁇ the second pole 12b, thereby causing the current in the battery 1 It is uniform and makes the heat generation of the battery 1 uniform.
  • the heat of the battery 1 can be dissipated through the outer casing 10, thereby improving the heat dissipation area of the battery 1, and correspondingly improving the service life of the battery 1. And use security.
  • the first pole 12a is electrically connected to the outer casing 10, for example, the first pole 12a can be directly welded to the outer casing 10, the mounting structure of the first pole 12a mounted on the outer casing 10 is relatively simple, so that The manufacturing cost of the battery 1 is reduced.
  • the second pole 12b can be sealed and insulated on the outer casing 10 through an insulating seal.
  • the battery 1 may be a rectangular parallelepiped, and the battery core 11 may be a flat wound battery core or a laminated battery core or the like.
  • the first pole 12a can be a positive pole
  • the second pole 12b can be a negative pole
  • the first pole 13a can be a positive ear
  • the second pole 13b can be a negative ear
  • the outer casing 10 is not easily negatively charged.
  • the risk of corrosion of the outer casing 10 is reduced, and the safety and service life of the battery 1 are improved.
  • the outer casing can be made of an aluminum shell, so that the risk of corrosion of the outer casing 10 can be reduced, and the safety and service life of the battery 1 can be improved.
  • the shell can be made of copper to reduce corrosion, improve safety and service life.
  • an aluminum casing is basically used as the outer casing of the battery, so in a further embodiment of the present application, an aluminum casing is used as the outer casing 10 of the battery 1, the corresponding first tab 13a can be used as a positive ear.
  • the first tab 13a is drawn from one end of the battery cell 11, and the second tab 13b is taken out from the other end of the battery cell 11, for example, in the direction shown in FIG.
  • the second tab 13b can be drawn from the upper end of the battery cell 11 by drawing it from the lower end of the battery cell 11.
  • the first tab 13a and the second tab 13b are disposed at both ends of the battery cell 11.
  • the first tab 13a and the second tab 13b may be arranged to be vertically symmetrically arranged; thus, the current may be further increased. The uniformity improves the uniformity of heat production, thereby improving the safety and service life of the battery 1.
  • the first pole 12a and the second pole are 12b collectively disposed on an end cover of the outer casing 10 corresponding to one of the two ends of the battery core 11 (for example, on the second sealing cover 103 in a specific embodiment below), so as to be disposed, the first tab 13a at the bottom After being taken out, it is electrically connected to the first sealing cover 102, and is electrically connected to the second sealing cover 103 through the main body portion of the outer casing 10, that is, the cylinder 101 mentioned below.
  • the first pole 12a is welded (electrically connected) at the first Two sealing covers 103.
  • the current is drawn from the bottom and transmitted through the upper and lower directions of the outer casing 10 to reach the top of the outer casing 10, so that heat can be efficiently dissipated through the outer casing 10.
  • the first pole 12a and the second pole 12b are located at the upper end of the outer casing 10, which saves space of one pole in the up and down direction, improves space utilization, and can pass the maximum extent.
  • the outer casing 10 conducts flow and heat dissipation, further improving the safety and service life of the battery 1.
  • the outer casing 10 may include a cylindrical body 101 formed with an open end at each end, a first sealing cover 102 disposed at a lower end of the cylindrical body 101, and a second sealing cover 103 disposed at an upper end of the cylindrical body 101, thus facilitating the battery 1 Internal components such as the mounting of the battery cells 11.
  • the first sealing cover 102 can form the bottom wall of the outer casing 10
  • the second sealing cover 103 can form the top wall of the outer casing 10.
  • the first tab 13a is disposed at the lower end of the battery core 11
  • the second tab 13b is disposed at the upper end of the battery core 11, thereby facilitating electrical connection between the second pole 12b and the second tab 13b.
  • the cylinder 101 and the first sealing cover 102 and the second sealing cover 103 are both welded and the outer casing 10 is formed as a conductive member; at least current can be transmitted from the first sealing cover 102 to the cylinder 101, via the second The sealing cover 103 is delivered to the first pole 12a.
  • the second pole 12b is insulated from the outer casing 10.
  • the second pole 12b is insulated from the second sealing cover 103; the specific manner may be in the second pole 12b and the second An insulating member is disposed between the sealing covers 103, or a lamination may be disposed on the second sealing cover 103, the insulating member is installed in the lamination, or the insulating layer is insulated from the second sealing cover 103, and the second pole is 12b is placed inside the laminate.
  • the first pole 12a is not affected by the outer casing 10 It is electrically connected to the first tab 13a.
  • the first pole 12a and the second pole 12b may be disposed on the second sealing cover 103, that is, the first pole 12a and the second pole 12b are both located at the same end of the outer casing 10, This saves space and improves space utilization. Under the limited size of the battery 1, the space of the sealed chamber 100 is made as large as possible, the capacity of the battery cell 11 is increased, and the structure of the battery 1 is more compact and lighter. .
  • first tab 13a can be directly electrically connected to the outer casing 10.
  • first tab 13a can be electrically connected to the outer casing 10 through the first connecting member 14, and the first connecting member 14 can be disposed on the outer casing 10, that is, the first tab 13a can be disposed on the outer casing 10.
  • the first connector 14 is electrically connected to the housing 10, and the electrical connection of the first tab 13a to the housing 10 can be facilitated by providing the first connector 14.
  • the first connecting member 14 can be configured in various forms as long as the first tab 13a is electrically connected to the outer casing 10. Further, the first connecting member 14 may be connected to the outer casing 10 by welding, in particular, to the first sealing cover 102.
  • the first connecting member 14 may include a first lead-out piece 141 disposed on the outer casing 10.
  • the soft connecting piece may be used as the first lead-out piece 141, wherein the first connecting piece 141 may be connected to the welding body by welding.
  • the manner is electrically connected to the first lead tab 141.
  • the first connecting member 14 may include a first U-shaped plate 140, wherein the closed end of the first U-shaped plate 140 is disposed on the outer casing 10, for example, the closed end may be connected by welding The outer casing 10, wherein the closed end is weldable to the bottom cover of the outer casing 10, that is, the first sealing cover 102, so as to facilitate the arrangement of the first tab 13a, the open end of the first U-shaped plate 140 faces the sealed chamber 100, first The tab 13a is attached to the wall of the first U-shaped plate 140 that forms the opening.
  • the provision of the first U-shaped plate 140 may facilitate the arrangement of the first tabs 13a respectively drawn from the plurality of cells 11, for example, each of the first tabs 13a may correspond to Connected to a wall of a first U-shaped plate 140 forming an opening.
  • the first connecting member 14 may include a first U-shaped plate 140 and a first lead-out piece 141, and the closed end of the first U-shaped plate 140 is disposed on the outer casing 10, the first U-shaped The open end of the plate 140 faces the sealed chamber 100, and the first tab 13a is electrically connected to the first U-shaped plate 140 through the first lead piece 141; one end of the first lead piece 141 is connected to the first tab 13a, and the first lead is led out.
  • the other end of the sheet 141 is coupled to the wall of the first U-shaped plate 140 forming the opening. That is, the first tab 13a is electrically connected to the outer casing through the first U-shaped plate 140 and the first lead-out piece 141.
  • the second tab 13b can be electrically connected to the second pole 12b through the second connecting member 15, specifically,
  • the second connecting member 15 can be disposed on the outer casing 10, that is, the second tab 13b can be electrically connected to the second pole 12b through a second connecting member 15 disposed on the outer casing 10.
  • the second connecting member 15 can be configured in various forms as long as the electrical connection between the second tab 13b and the second post 12b is realized.
  • the second connecting member 15 may be connected to the outer casing 10 by welding, in particular, to the second sealing cover 103. It should be noted that the second connecting member 15 is insulated from being disposed on the second sealing cover 103.
  • the second connecting member 15 may include a second lead-out piece 151 disposed on the outer casing 10.
  • the soft connecting piece may serve as the second take-up piece 151, wherein the second connecting piece 151 may be disposed by welding.
  • the second take-up piece 151 can be connected to the top wall of the outer casing 10, that is, the second sealing cover 103 by welding, thereby facilitating the arrangement of the second tab 13b, and further, the second tab 13b can pass The manner of soldering is electrically connected to the second lead-out piece 151.
  • the second connecting member 15 may include a second U-shaped plate 150, wherein the closed end of the second U-shaped plate 150 is disposed on the outer casing 10, for example, the closed end may be connected to the second pole 12b by welding,
  • the open end of the two U-shaped plates 150 faces the closed chamber 100, and the second tab 13b is connected to the wall forming the opening of the second U-shaped plate 150.
  • the provision of the second U-shaped plate 150 may facilitate the arrangement of the second tabs 13b respectively drawn from the plurality of cells 11, for example, each of the second tabs 13b may correspond to Connected to a wall of a second U-shaped plate 150 forming an opening. It should be noted that the structure of the second U-shaped plate 150 and the first U-shaped plate 140 are substantially the same.
  • the second connecting member 15 may include a second U-shaped plate 150 and a second lead-out piece 151, and the closed end of the second U-shaped plate 150 is connected with the second pole 12b, The open end of the second U-shaped plate 150 faces the sealed chamber 100, and the second tab 13b is electrically connected to the second U-shaped plate 150 through the second lead-out piece 151.
  • One end of the second lead-out piece 151 and the second tab 13b The other end of the second lead piece 151 is connected to the wall of the second U-shaped plate 150 forming the opening. That is, the second tab 13b is electrically connected to the second pole 12b through the second U-shaped plate 150 and the second lead-out piece 151.
  • the present application further provides a battery pack 2 comprising a plurality of batteries 1 provided by the present application, the battery pack 2 further comprising an external portion capable of electrically connecting a plurality of batteries 1 Connector.
  • the current in the battery pack 2 can be made uniform, and the overall heat generation of the battery pack 2 can be made uniform, and the heat of the battery pack 2 can be easily distributed. Improves the service life and safety of the battery pack 2.
  • the threaded holes 120 extending along the thickness direction of the corresponding poles may be respectively formed on the first poles 12a and the second poles 12b, and the threaded holes 120 may be opened in the corresponding poles away from the corresponding sealing covers.
  • a screw hole 120 extending in the thickness direction of the second pole 12b is opened on the second pole 12b, and the first pole 12a is extended in the thickness direction of the first pole 12a.
  • the threaded hole 120 and the external connecting member 21 (such as the connecting piece) are disposed at the same time, so that a plurality of fixing members such as bolts pass through the connecting piece and are respectively screwed into the corresponding threaded holes 120, thereby being under the action of the external connecting member 21.
  • a plurality of batteries 1 can be assembled into the battery pack 2.
  • the present application also provides an automobile 3 in which the battery pack 2 provided by the present application is disposed. Applying the battery pack 2 provided by the present application to the automobile 3 can provide a uniform current to the automobile 3 and can improve the safety of use of the automobile 3.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

一种电池(1)、电池组(2)以及汽车(3)，电池(1)包括具有密闭腔室(100)的外壳(10)、封装于密闭腔室(100)内的电芯(11)以及分别装设于外壳(10)的第一极柱(12a)和第二极柱(12b)，其中，第一极柱(12a)与外壳(10)电连接，第二极柱(12b)与外壳(10)绝缘，电池(1)还包括分别从电芯(11)引出的第一极耳(13a)和第二极耳(13b)，第一极耳(13a)与外壳(10)电连接，第一极耳(13a)通过外壳(10)与第一极柱(12a)电连接，第二极耳(13b)与第二极柱(12b)电连接。

Description

电池、电池组以及汽车
相关申请的交叉引用
本申请基于申请号为201810050360.0、申请日为2018年01月18日的中国专利申请提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及电池领域，涉及一种电池、电池组以及汽车。
背景技术
电池是一般指盛有电解质和金属电极以产生电流的杯、槽或其他容器或复合容器的部分空间，能将化学能转化成电能的装置，具有正极、负极之分。
一般来讲，电池包括外壳和封装于外壳内的电芯，其中，外壳包括盒体和盖合于盒体的密封盖，电池的极柱通过设置在密封盖上的孔与密封盖连接，另外，从电芯上分别引出有正极耳和负极耳。
在现有的电池结构中，由于电池的正、负两个极柱均与电池的外壳绝缘连接，因此电池的电流流向为从正极柱到正极耳，然后由正极耳到电芯，再由电芯流向负极柱，这样导致电池的电流并不均匀，并且使得电池的发热也不均匀。此外，由于现有的电池中的正、负两个极柱均与电池的外壳绝缘连接，因此，极柱装设于外壳的结构较为复杂，导致了电池的制造成本的提升。另外，电流反复流经电芯，使得电芯极易发热，并且热量不易散发出去，减少了电池的使用寿命。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本申请的一个目的在于提出一种电池，该电池内部的电流均匀且发热均匀。
本申请的另一个目的在于提出一种电池组。
本申请的再一个目的在于提出一种汽车。
本申请第一方面实施例提供一种电池，所述电池包括具有密闭腔室的外壳、封装于所述密闭腔室内的电芯以及分别装设于所述外壳的第一极柱和第二极柱，其中，所述第一极柱与所述外壳电连接，所述第二极柱与所述外壳绝缘，所述电池还包括分别从所述电芯引出的第一极耳和第二极耳，其中，所述第一极耳与所述外壳电连接，所述第一极耳通过所述 外壳与所述第一极柱电连接，所述第二极耳与所述第二极柱电连接。
根据本申请实施例的电池，通过使得第一极柱和从电芯引出的第一极耳均与外壳电连接，也就是说，第一极耳通过外壳与第一极柱电连接，不仅使得电池的电流均匀，而且使得电池的发热均匀。此外，由于经过第一极耳的电流经过电池的外壳流向第一极柱，从而能够通过外壳将电池的热量散发出去，提高了电池的散热面积，相应的提高了电池的使用寿命和使用安全性。另外，由于第一极柱与外壳电连接，例如第一极柱可直接焊接在外壳上，因此整体来讲，极柱装设于外壳的安装结构较为简单，这样降低了电池的制造成本。简言之，该电池内部的电流较为均匀，电池的发热也较为均匀，并且电池内部产生的热量能够通过电池的外壳向外散发出去，提高了电池的使用寿命，同时，电池的极柱与电池的外壳的连接结构整体较为简单，降低了电池的制造成本。
在本申请的一些实施例中，所述第一极耳从所述电芯的一端引出，所述第二极耳从所述电芯的另一端引出。
在本申请的一些实施例中，所述第一极耳通过第一连接件与所述外壳电连接。
在本申请的一些实施例中，所述第一连接件包括第一U型板，所述第一U型板的封闭端设置于所述外壳，所述第一U型板的开口端朝向所述密闭腔室，所述第一极耳连接于所述第一U型板的形成开口的壁上。
在本申请的一些实施例中，所述第一连接件包括第一U型板和第一引出片，所述第一U型板的封闭端设置于所述外壳，所述第一U型板的开口端朝向所述密闭腔室，所述第一极耳通过所述第一引出片与所述第一U型板电连接；所述第一引出片的一端与所述第一极耳连接，所述第一引出片的另一端连接于所述第一U型板的形成开口的壁上。
在本申请的一些实施例中，所述第二极耳通过第二连接件与所述第二极柱电连接。
在本申请的一些实施例中，所述第二连接件包括第二U型板，所述第二U型板的封闭端与所述第二极柱连接，所述第二U型板的开口端朝向所述密闭腔室，所述第二极耳连接于所述第二U型板的形成开口的壁上。
在本申请的一些实施例中，所述第二连接件包括第二U型板和第二引出片，所述第二U型板的封闭端与所述第二极柱连接，所述第二U型板的开口端朝向所述密闭腔室，所述第二极耳通过所述第二引出片与所述第二U型板电连接，所述第二引出片的一端与所述第二极耳连接，所述第二引出片的另一端连接于所述第二U型板的形成开口的壁上。
在本申请的一些实施例中，所述外壳包括两端分别形成有敞口的筒体以及设置在所述筒体下端的第一密封盖和设置在所述筒体上端的第二密封盖；所述第一极耳设置在所述电芯的下端，所述第二极耳设置在所述电芯的上端。
在本申请的一些实施例中，所述第一极柱和所述第二极柱均装设在所述第二密封盖上。
在本申请的一些实施例中，所述第一极柱为正极柱，所述第二极柱为负极柱。
本申请第二方面实施例提供了一种电池组，所述电池组包括本申请所提供的电池，所述电池组还包括能够使得多个所述电池之间电连接的外部连接件。将多个本申请所提供的电池之间电连接以组装成电池组，可使得电池组中的电流均匀，并且使得电池组的整体发热均匀，同时还使得电池组热量易于散发，提高了电池组的使用寿命和使用安全性。
本申请第三方面实施例提供了一种汽车，其特征在于，所述汽车中设置有本申请所提供的电池组。将本申请提供的电池组应用于汽车中，能够为汽车提供均匀的电流，并能够提高汽车的使用安全性。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
图1是本申请一个实施例的电池的整体结构示意图；
图2是图1所示的电池的侧视结构示意图；
图3是沿图2中A-A线截取的剖面结构示意图；
图4是图1所示的电池的第一密封盖处的局部结构示意图；
图5是图1所示的电池的电芯的局部结构示意图，其中，在电芯的两个极耳上分别连接有第一引出片和第二引出片；
图6是本申请一个实施例的汽车的示意图。
附图标记说明
1-电池；10-外壳；100-密闭腔室；101-筒体；102-第一密封盖；103-第二密封盖；11-电芯；12a-第一极柱；12b-第二极柱；13a-第一极耳；120-螺纹孔；13b-第二极耳；14-第一连接件；140-第一U型板；141-第一引出片；15-第二连接件；151-第二引出片；150-第二U型板；2-电池组；21-外部连接件；3-汽车。
具体实施方式
在本申请中，在未作相反说明的情况下，使用的方位词如“上、下、左、右”通常是指结合附图中所示的方位和实际应用中的方位理解，“内、外”是指部件的轮廓的内、外。
本申请提供了一种电池1，结合图1、图2和图3中所示，电池1包括具有密闭腔室100的外壳10、封装于密闭腔室100内的电芯11以及分别装设于外壳10的第一极柱12a和第二极柱12b，其中，第一极柱12a与外壳10电连接，第二极柱12b与外壳10绝缘，电池1还包括分别从电芯11引出的第一极耳13a和第二极耳13b，其中，第一极耳13a与外壳10 电连接，第一极耳13a通过外壳10与第一极柱12a电连接，第二极耳13b与第二极柱12b电连接。
通过使得第一极柱12a和从电芯11引出的第一极耳13a均与外壳10电连接，也就是说，第一极耳13a通过外壳10与第一极柱12a电连接；一个实施例中，电池1中的电流流向可以为：第一极柱12a→外壳10→第一极耳13a→电芯11→第二极耳13b→第二极柱12b，由此使得电池1中的电流均匀，而且使得电池1的发热均匀。
此外，由于电流由第一极柱12a通过外壳10流向第一极耳13a，从而能够通过外壳10将电池1的热量散发出去，提高了电池1的散热面积，相应的提高了电池1的使用寿命和使用安全性。
另外，由于第一极柱12a与外壳10电连接，例如第一极柱12a可直接焊接在外壳10上，因此整体来讲，第一极柱12a装设于外壳10的安装结构较为简单，这样降低了电池1的制造成本。需要说明的是，第二极柱12b可通过绝缘密封件密封绝缘装设在外壳10上。其中，电池1可为长方体，电芯11可为呈扁平的卷绕电芯或叠片电芯等。
此外，第一极柱12a可为正极柱，第二极柱12b为负极柱，第一极耳13a可为正极耳，第二极耳13b可为负极耳，这样，可使得外壳10不易带负电，减少了外壳10被腐蚀的风险，提高了电池1的使用安全性和使用寿命。在第一极耳13a为正极耳的情况下，外壳可以选用铝壳，如此可以减少外壳10被腐蚀的风险，提高电池1的安全性和使用寿命；同理，若第一极耳13a为负极耳，则外壳可以选用铜壳，以减少腐蚀、提高安全性和使用寿命。当然，基于目前市场上的大多数电池而言，基本使用铝壳作为电池的外壳，所以，在本申请的更多实施例中，采用铝壳作为电池1的外壳10，相应的第一极耳13a可作为正极耳。
本申请的一个实施例中，第一极耳13a从电芯11的一端引出，第二极耳13b从电芯11的另一端引出，例如图3中所示的方向，第一极耳13a可从电芯11的下端引出，第二极耳13b可从电芯11的上端引出。将第一极耳13a和第二极耳13b设置在电芯11的两端，一些实施例中，可以选择将第一极耳13a和第二极耳13b上下对称设置；如此，可以进一步提高电流的均匀性，提高产热的均匀性，进而提高电池1的安全性和使用寿命。
在第一极耳13a和第二极耳13b从电芯两端引出的基础上，为了很好的配合外壳10的散热功效和节省电池1的空间；将第一极柱12a和第二极柱12b共同设置外壳10的与电芯11两端中的其中一端对应的端盖上(例如下文中一个具体实施例中的第二密封盖103上)，如此设置，位于底部的第一极耳13a引出后与第一密封盖102电连接，通过外壳10的主体部即下文中提及的筒体101与第二密封盖103电连接，此时，第一极柱12a焊接(电连接)在第二密封盖103上。电流从底部引出，经外壳10的上下方向传递，到达外壳10的顶部，能够有效的通过外壳10进行散热。同时，在现有方案中，第一极耳13a和第二极耳13b分 别从电芯11的两端引出时，一般是在外壳10的上端和下端各设置一个极柱；与上述方案相比，本申请提供的技术方案，第一极柱12a和第二极柱12b都位于外壳10的上端，上下方向上节省了一个极柱的空间，提高了空间利用率；同时又能够最大程度的通过外壳10进行导流和散热，进一步提高了电池1的安全性和使用寿命。
另外，外壳10可包括两端分别形成有敞口的筒体101以及设置在筒体101下端的第一密封盖102和设置在筒体101上端的第二密封盖103，这样，便于电池1的内部部件如电芯11的装设。从图3所示的方位看，第一密封盖102可形成外壳10的底壁，第二密封盖103可形成外壳10的顶壁。其中，第一极耳13a设置在电芯11的下端，第二极耳13b设置在电芯11的上端，由此，可便于实现第二极柱12b与第二极耳13b之间的电连接，以及便于实现第一极柱12a通过外壳10与第一极耳13a电连接，由此更加便于第一极柱12a和第二极柱12b均装设于外壳10的同一端。
一般情况下，筒体101和第一密封盖102、第二密封盖103均为焊接连接，并且外壳10成型为导电部件；至少电流可以从第一密封盖102传递到筒体101、经第二密封盖103传递至第一极柱12a。而第二极柱12b与外壳10绝缘，在一个具体实施例中，如图3所示，第二极柱12b与第二密封盖103绝缘；其具体方式可以在第二极柱12b与第二密封盖103之间设置绝缘件，或者可以是在第二密封盖103上设置叠片，绝缘件安装在叠片内，又或者是叠片与第二密封盖103之间绝缘，第二极柱12b设置在叠片内。
无论第二极柱12b如何安装在第二密封盖103上，只要能够实现第二极柱12b与第二密封盖103之间的绝缘即可；同时，又不影响第一极柱12a通过外壳10与第一极耳13a电连接。
如图3中所示，第一极柱12a和第二极柱12b均可装设在第二密封盖103上即第一极柱12a和第二极柱12b均位于外壳10的同一端，由此节省了空间，提高了空间利用率，在电池1的有限的尺寸条件下使得密闭腔室100的空间尽量大，提高了电芯11的容量，使得电池1的结构更加紧凑化以及更加轻量化。
可以理解的是，第一极耳13a可直接与外壳10电连接。一些实施例中，第一极耳13a可通过第一连接件14与外壳10电连接，第一连接件14可设置于外壳10，也就是说，第一极耳13a可通过设置于外壳10上的第一连接件14与外壳10电连接，通过设置第一连接件14可便于实现第一极耳13a与外壳10的电连接。其中，第一连接件14的结构形式可为多种，只要实现第一极耳13a与外壳10的电连接即可。此外，第一连接件14可通过焊接的方式连接于外壳10，具体来讲，可连接于第一密封盖102。
一些实施例中，第一连接件14可包括设置于外壳10上的第一引出片141，例如软连接片可作为第一引出片141，其中，第一引出片141可通过焊接的方式连接于外壳10，其中， 第一引出片141可通过焊接的方式连接于外壳10的底盖即第一密封盖102，由此便于第一极耳13a的设置，此外，第一极耳13a可通过焊接的方式与第一引出片141电连接。
另外，如图4中所示，第一连接件14可包括第一U型板140，其中，第一U型板140的封闭端设置于外壳10，例如该封闭端可通过焊接的方式连接于外壳10，其中，该封闭端可焊接于外壳10的底盖即第一密封盖102上以便于第一极耳13a的设置，第一U型板140的开口端朝向密闭腔室100，第一极耳13a连接于第一U型板140的形成开口的壁上。当在外壳10内封装有多个电芯11时，设置第一U型板140可便于从多个电芯11分别引出的第一极耳13a的设置，例如每个第一极耳13a可对应连接于一个第一U型板140的形成开口的一个壁上。
此外，结合图4和图5中所示，第一连接件14可包括第一U型板140和第一引出片141，第一U型板140的封闭端设置于外壳10，第一U型板140的开口端朝向密闭腔室100，第一极耳13a通过第一引出片141与第一U型板140电连接；第一引出片141的一端与第一极耳13a连接，第一引出片141的另一端连接于第一U型板140的形成开口的壁上。也就是说，第一极耳13a通过第一U型板140和第一引出片141与外壳电连接。
为了便于实现第二极耳13b与第二极柱12b的电连接，如图3中所示，第二极耳13b可通过第二连接件15与第二极柱12b电连接，具体来讲，第二连接件15可设置于外壳10，也就是说，第二极耳13b可通过设置于外壳10上的第二连接件15与第二极柱12b电连接。其中，第二连接件15的结构形式可为多种，只要实现第二极耳13b与第二极柱12b的电连接即可。此外，第二连接件15可通过焊接的方式连接于外壳10，具体来讲，可连接于第二密封盖103。需要指出的是，第二连接件15绝缘设置在第二密封盖103上。
一些实施例中，第二连接件15可包括设置于外壳10上的第二引出片151，如软连接片可作为第二引出片151，其中，第二引出片151可通过焊接的方式设置在外壳10上，其中，第二引出片151可通过焊接的方式连接于外壳10的顶壁即第二密封盖103，由此便于第二极耳13b的设置，此外，第二极耳13b可通过焊接的方式与第二引出片151电连接。
另外，第二连接件15可包括第二U型板150，其中，第二U型板150的封闭端设置于外壳10，例如该封闭端可通过焊接的方式连接于第二极柱12b，第二U型板150的开口端朝向密闭腔室100，第二极耳13b连接于第二U型板150的形成开口的壁上。当在外壳10内封装有多个电芯11时，设置第二U型板150可便于从多个电芯11分别引出的第二极耳13b的设置，例如每个第二极耳13b可对应连接于一个第二U型板150的形成开口的一个壁上。需要指出的是，第二U型板150与第一U型板140的结构基本相同。
此外，结合图4和图5中所示，第二连接件15可包括第二U型板150和第二引出片151，第二U型板150的封闭端与第二极柱12b连接，第二U型板150的开口端朝向密闭腔室100， 第二极耳13b通过第二引出片151与第二U型板150电连接，所述第二引出片151的一端与第二极耳13b连接，第二引出片151的另一端连接于第二U型板150的形成开口的壁上。也就是说，第二极耳13b通过第二U型板150和第二引出片151与第二极柱12b电连接。
结合图6，本申请还提供了一种电池组2，所述电池组2包括多个本申请所提供的电池1，所述电池组2还包括能够使得多个电池1之间电连接的外部连接件。将多个本申请所提供的电池1之间电连接以组装成电池组2，可使得电池组2中的电流均匀，并且使得电池组2的整体发热均匀，同时还使得电池组2热量易于散发，提高了电池组2的使用寿命和使用安全性。
需要说明的是，可在第一极柱12a和第二极柱12b上分别开设沿相应极柱的厚度方向延伸的螺纹孔120，并且将螺纹孔120开设在相应极柱的远离相应密封盖的一侧端面上，具体来讲，在第二极柱12b上开设沿第二极柱12b的厚度方向延伸的螺纹孔120，在第一极柱12a上开设沿第一极柱12a的厚度方向延伸的螺纹孔120，并设置外部连接件21(如连接片)同时使得多个固定件如螺栓穿过连接片且分别旋拧入相应的螺纹孔120中，由此在外部连接件21的作用下能够将多个电池1组装成电池组2。
结合图6，本申请还提供了一种汽车3，所述汽车3中设置有本申请所提供的电池组2。将本申请提供的电池组2应用于汽车3中，能够为汽车3提供均匀的电流，并能够提高汽车3的使用安全性。
以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于此。在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合。为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本申请所公开的内容，均属于本申请的保护范围。

Claims (13)

  1. 一种电池(1)，其特征在于，所述电池(1)包括具有密闭腔室(100)的外壳(10)、封装于所述密闭腔室(100)内的电芯(11)以及分别装设于所述外壳(10)的第一极柱(12a)和第二极柱(12b)，其中，所述第一极柱(12a)与所述外壳(10)电连接，所述第二极柱(12b)与所述外壳(10)绝缘，所述电池(1)还包括分别从所述电芯(11)引出的第一极耳(13a)和第二极耳(13b)，其中，所述第一极耳(13a)与所述外壳(10)电连接，所述第一极耳(13a)通过所述外壳(10)与所述第一极柱(12a)电连接，所述第二极耳(13b)与所述第二极柱(12b)电连接。
  2. 根据权利要求1所述的电池(1)，其特征在于，所述第一极耳(13a)从所述电芯(11)的一端引出，所述第二极耳(13b)从所述电芯(11)的另一端引出。
  3. 根据权利要求1或2所述的电池(1)，其特征在于，所述第一极耳(13a)通过第一连接件(14)与所述外壳(10)电连接。
  4. 根据权利要求3所述的电池(1)，其特征在于，所述第一连接件(14)包括第一U型板(140)，所述第一U型板(140)的封闭端设置于所述外壳(10)，所述第一U型板(140)的开口端朝向所述密闭腔室(100)，所述第一极耳(13a)连接于所述第一U型板(140)的形成开口的壁上。
  5. 根据权利要求3或4所述的电池(1)，其特征在于，所述第一连接件(14)包括第一U型板(140)和第一引出片(141)，所述第一U型板(140)的封闭端设置于所述外壳(10)，所述第一U型板(140)的开口端朝向所述密闭腔室(100)，所述第一极耳(13a)通过所述第一引出片(141)与所述第一U型板(140)电连接；所述第一引出片(141)的一端与所述第一极耳(13a)连接，所述第一引出片(141)的另一端连接于所述第一U型板(140)的形成开口的壁上。
  6. 根据权利要求1-5中任一项所述的电池(1)，其特征在于，所述第二极耳(13b)通过第二连接件(15)与所述第二极柱(12b)电连接。
  7. 根据权利要求6所述的电池(1)，其特征在于，所述第二连接件(15)包括第二U型板(150)，所述第二U型板(150)的封闭端与所述第二极柱(12b)连接，所述第二U型板(150)的开口端朝向所述密闭腔室(100)，所述第二极耳(13b)连接于所述第二U型板(150)的形成开口的壁上。
  8. 根据权利要求6或7所述的电池(1)，其特征在于，所述第二连接件(15)包括第二U型板(150)和第二引出片(151)，所述第二U型板(150)的封闭端与所述第二极柱(12b)连接，所述第二U型板(150)的开口端朝向所述密闭腔室(100)，所述第二极耳 (13b)通过所述第二引出片(151)与所述第二U型板(150)电连接，所述第二引出片(151)的一端与所述第二极耳(13b)连接，所述第二引出片(151)的另一端连接于所述第二U型板(150)的形成开口的壁上。
  9. 根据权利要求1-8任意一项所述的电池(1)，其特征在于，所述外壳(10)包括两端分别形成有敞口的筒体(101)以及设置在所述筒体(101)下端的第一密封盖(102)和设置在所述筒体(101)上端的第二密封盖(103)；
    所述第一极耳(13a)设置在所述电芯(11)的下端，所述第二极耳(13b)设置在所述电芯(11)的上端。
  10. 根据权利要求9所述的电池(1)，其特征在于，所述第一极柱(12a)和所述第二极柱(12b)均装设在所述第二密封盖(103)上。
  11. 根据权利要求1-10任意一项所述的电池(1)，其特征在于，所述第一极柱(12a)为正极柱，所述第二极柱(12b)为负极柱。
  12. 一种电池组(2)，其特征在于，所述电池组(2)包括多个权利要求1-11中任意一项所述的电池(1)，所述电池组(2)还包括能够使得多个所述电池(1)之间电连接的外部连接件(21)。
  13. 一种汽车(3)，其特征在于，所述汽车(3)中设置有权利要求12所述的电池组(2)。
PCT/CN2019/071169 2018-01-18 2019-01-10 电池、电池组以及汽车 WO2019141129A1 (zh)

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