WO2021155560A1 - 电池和具有所述电池的用电装置 - Google Patents

电池和具有所述电池的用电装置 Download PDF

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Publication number
WO2021155560A1
WO2021155560A1 PCT/CN2020/074482 CN2020074482W WO2021155560A1 WO 2021155560 A1 WO2021155560 A1 WO 2021155560A1 CN 2020074482 W CN2020074482 W CN 2020074482W WO 2021155560 A1 WO2021155560 A1 WO 2021155560A1
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WIPO (PCT)
Prior art keywords
hole
housing
battery
conductive member
insulating member
Prior art date
Application number
PCT/CN2020/074482
Other languages
English (en)
French (fr)
Inventor
郭培培
张国文
Original Assignee
宁德新能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德新能源科技有限公司 filed Critical 宁德新能源科技有限公司
Priority to EP20712824.0A priority Critical patent/EP3886239A1/en
Priority to CN202080000174.1A priority patent/CN113557630A/zh
Priority to KR1020207009402A priority patent/KR102490178B1/ko
Priority to US16/650,488 priority patent/US11901590B2/en
Priority to KR1020237001490A priority patent/KR102537762B1/ko
Priority to KR1020237017381A priority patent/KR102561627B1/ko
Priority to JP2020518626A priority patent/JP7330955B2/ja
Priority to PCT/CN2020/074482 priority patent/WO2021155560A1/zh
Publication of WO2021155560A1 publication Critical patent/WO2021155560A1/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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • H01M10/0427—Button 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
    • 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 of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/153—Lids or covers characterised by their shape for button or coin 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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 of a single cell or a single battery
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • 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
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • 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
    • 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
    • H01M50/545—Terminals formed by the casing of the 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • 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
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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
    • 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
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • This application relates to a battery and an electric device with the battery.
  • a battery usually includes a casing, a top cover, and a battery cell.
  • the battery core is located inside the housing, and the top cover is located at the opening at the upper end of the housing.
  • a pole is penetrated in the top cover, and the pole is electrically connected with the battery core to realize power supply to the outside.
  • the pole in the prior art needs to be arranged in an I-shape, that is, it includes a pole body and a pole plate located on both sides of the pole body, and the two pole plates are respectively installed on the pole.
  • the two surfaces of the top cover In order to electrically insulate the poles and the top cover, a layer of insulating pads needs to be provided between the two pole plates and the top cover. Therefore, along the direction perpendicular to the top cover, the top cover has an additional four layers of two layers of pole plates and two layers of insulating pads at the position where the poles are provided, resulting in the overall thickness of the top cover The thickness increases, which in turn causes a loss of energy density.
  • the present application provides a battery including a battery core and a housing assembly for accommodating the battery core, and the battery core includes a first tab.
  • the battery further includes an insulating member and a conductive member, and the insulating member is connected between the housing assembly and the conductive member.
  • the housing assembly is provided with a first through hole, the insulating member is provided with a second through hole communicating with the first through hole, and the first tab is electrically connected to the conductive member.
  • the conductive member covers the second through hole, and seals the battery core in the housing assembly.
  • the conductive member is adhered to the housing assembly through the insulating member.
  • the material of the insulating member includes at least one of polyolefin, polyvinyl chloride, or fluorine rubber.
  • the material of the insulating member includes non-polar polyolefin and insulating particles located in the non-polar polyolefin.
  • the insulating member and the conductive member are both located in the housing assembly.
  • the insulating member and the conductive member are both located outside the housing assembly.
  • the thickness of the insulating member is 0.01 mm-0.3 mm, and the thickness of the conductive member is 0.1 mm-2 mm.
  • the housing assembly includes a first housing and a second housing, the first housing defines an accommodating space for accommodating the battery, and the second housing The body is connected to the first housing to close the accommodating space, and the first through hole is located in the second housing.
  • the central axis of the second through hole coincides with the central axis of the first through hole, and the projection of the second through hole on the second housing is completely located in the first through hole The projection of the inner or the second through hole on the second housing covers the first through hole.
  • the central axes of the second through hole and the first through hole do not coincide, and the projection of the second through hole on the second housing is completely located on the first through hole.
  • the inside of the hole or the projection of the second through hole on the second housing covers the first through hole.
  • the width of the insulating member is smaller than the width of the second housing, and the width of the conductive member is smaller than the width of the insulating member.
  • the battery cell further includes a second tab having a polarity different from that of the first tab, and the second tab is electrically connected to the first housing.
  • the battery cell further includes a first pole piece and a second pole piece, and the first pole piece and the second pole piece are electrically connected to the first pole piece and the second pole piece, respectively.
  • the second pole piece, the first pole piece and the second pole piece are laminated or wound to form the electric core.
  • the shape of the first through hole and the second through hole is circular, and the diameter of the first through hole and the second through hole does not exceed 100 mm.
  • the application also provides an electrical device, which includes the battery as described above.
  • the conductive member is provided and the first tab is electrically connected to the conductive member. After the external electrical connection member is connected to the conductive member, the polarity of the first tab can be led out of the housing assembly . Therefore, the conductive member can be used to replace the pole in the prior art.
  • the shell assembly needs to be increased in thickness by four additional layers, the shell assembly of the present application only needs to increase the thickness of the insulating member and the conductive member, which reduces the thickness of the shell.
  • the thickness of the body component is beneficial to increase the energy density of the battery when the overall volume of the battery is the same.
  • FIG. 1 is a schematic diagram of the structure of a battery according to an embodiment of the application.
  • Fig. 2 is a plan view of the battery shown in Fig. 1.
  • Fig. 3 is a cross-sectional view of the battery shown in Fig. 1.
  • FIG. 4 is a cross-sectional view of the second casing, insulating member and conductive member of the battery shown in FIG. 3.
  • Fig. 5 is a cross-sectional view of the battery shown in Fig. 1 in another embodiment.
  • Fig. 6 is a cross-sectional view of the battery housing assembly shown in Fig. 1 in another embodiment.
  • Fig. 7 is a cross-sectional view of the battery housing assembly shown in Fig. 1 in another embodiment.
  • FIG. 8 is a cross-sectional view of a battery according to another embodiment of the application.
  • FIG. 9 is a module structure diagram of an electric device according to an embodiment of the application.
  • the battery 100 includes a battery core 10 and a housing assembly 20 for accommodating the battery core 10.
  • the battery cell 10 includes a first pole lug 101.
  • the battery 100 further includes an insulating member 30 and a conductive member 40, and the insulating member 30 is connected between the housing assembly 20 and the conductive member 40.
  • the housing assembly 20 is provided with a first through hole 210
  • the insulating member 30 is provided with a second through hole 300 communicating with the first through hole 210
  • the first tab 101 is electrically connected to the conductive Piece 40.
  • the conductive member 40 is provided and the first tab 101 is electrically connected to the conductive member 40. After the external electrical connection member is connected to the conductive member 40, the polarity of the first tab 101 can be led out The housing assembly 20. Therefore, the conductive member 40 can be used to replace the pole in the prior art.
  • the case assembly 20 described in the present application only needs to increase the thickness of the insulating member 30 and the conductive member 40, that is, the thickness is reduced.
  • the thickness of the casing assembly 20 is beneficial to increase the energy density of the battery 100 when the overall volume of the battery 100 is the same. Secondly, it is possible to prevent the pole from piercing the pole piece of the battery 100 during the squeeze test, thereby avoiding the risk of short circuit.
  • the conductive member 40 covers the second through hole 300 and seals the battery core 10 in the housing assembly 20.
  • the conductive member may not cover the second through hole, and the battery is sealed by other components.
  • the conductive member 40 is adhered to the housing assembly 20 through the insulating member 30, that is, the insulating member 30 not only connects the conductive member 40 to the housing assembly 20;
  • the housing assembly 20 is electrically insulated, and the insulating member 30 also has adhesive properties, and the conductive member 40 can be fixed to the housing assembly 20. Therefore, the conductive member 40 can seal the first through hole 210 of the housing assembly 20 so as to ensure the sealing performance of the housing assembly 20.
  • the material of the insulating member 30 includes at least one of polyolefin, polyvinyl chloride, or fluorine rubber.
  • the material of the insulating member 30 includes non-polar polyolefin and insulating particles located in the non-polar polyolefin.
  • the insulating particles are used to ensure the overall insulating performance of the insulating member 30.
  • the non-polar polyolefin can be selected from polyethylene (PE), polypropylene (PP), ethylene propylene diene rubber (EPDM), ethylene propylene rubber (EPR) or ethylene-vinyl acetate copolymer (EVA) At least one of.
  • the particle diameter of the insulating particles may be 0.001 mm-0.3 mm.
  • the insulating member 30 may also be connected to the housing assembly 20 through processes such as heat sealing, welding, injection molding, and the like, and the conductive member 40 may also be connected to the insulating member 30 through a welding process.
  • the insulating member 30 and the conductive member 40 are both located in the housing assembly 20. Therefore, the overall shape of the housing assembly 20 can be made relatively flat, so that the battery 100 has a more regular shape, and the height difference between the conductive member 40 and the top surface of the housing assembly 20 can be avoided. An external short circuit occurred. At this time, the external electrical connection member can be connected to the conductive member 40 through the first through hole 210 and the second through hole 300, so that the polarity of the first tab 101 can lead out of the housing assembly 20 .
  • the insulating member 30 and the conductive member 40 may also be located outside the housing assembly 20.
  • the battery 100 generates gas inside the housing assembly 20 during normal operation, which causes the internal pressure to increase.
  • the conductive member 40 will be washed away and separated from the housing assembly 20, so as to achieve the purpose of pressure relief, prevent the battery 100 from exploding, and ensure the safety of the battery 100.
  • the first tab 101 passes through the first through hole 210 and the second through hole 300 and is electrically connected to the conductive member 40. After the external electrical connection member is connected to the conductive member 40, the The polarity of the first tab 101 can lead to the housing assembly 20.
  • the thickness T 1 of the insulating member 30 is 0.01 mm-0.3 mm, and can be optionally 0.15 mm.
  • the thickness T 2 of the conductive member 40 is 0.1 mm-2 mm, and optionally 0.15 mm. Since the thickness of the insulating member 30 and the conductive member 40 is relatively thin, it is beneficial to reduce the overall thickness of the battery 100.
  • the width W 30 of the insulating member 1 and a width W 2 of the conductive member 40 is no more than 1000mm.
  • the width W 2 of the conductive member 40 may be smaller than the width W 1 of the insulating member 30.
  • the insulating member 30 and the conductive member 40 are generally flat, and respectively extend along two mutually parallel planes.
  • the width W 1 is a width in any direction along the plane where the insulating member 30 is located.
  • the width W 2 is the width in the same direction along the plane where the conductive member 40 is located.
  • the shape of the insulating member 30 may be a circle, a square, an ellipse, a triangle, a polygon, or the like.
  • the shape of the conductive member 40 may be a circle, a square, an ellipse, a triangle, a polygon, and the like.
  • the shape of the conductive member 40 may be the same as the shape of the insulating member 30, or may be different.
  • the material of the conductive member 40 may be metal.
  • the material of the conductive member 40 may be steel alloy, aluminum alloy, iron alloy, copper alloy, nickel alloy, or the like.
  • the material of the conductive member 40 is iron-carbon alloy (ie, stainless steel) or aluminum.
  • the housing assembly 20 includes a first housing 22 and a second housing 21, and the first housing 22 defines a housing for housing the battery core 10
  • the accommodating space 220, the second housing 21 is connected to the first housing 22 to close the accommodating space 220, and the first through hole 210 is located in the second housing 21.
  • the insulating member 30 is connected between the second housing 21 and the conductive member 40.
  • the width W 1 of the insulating member 30 may be smaller than the width W 3 of the second housing 21.
  • the second housing 21 is substantially in the shape of a flat plate and extends along a plane parallel to the insulating member 30.
  • the width W 1 is a width in any direction along the plane where the insulating member 30 is located, and the width W 3 is a width in the same direction along the plane where the second housing 21 is located.
  • the first through hole 210 may also be located at any position of the first housing 22.
  • the insulating member 30 is connected between the first housing 22 and the conductive member 40.
  • the first housing 22 includes a bottom 22 a and a side wall 22 b disposed around the bottom 22 a, and the second housing 21 is disposed opposite to the bottom 22 a of the first housing 22.
  • the first through hole 210 may be located at the bottom 22 a of the first housing 22.
  • the first through hole 210 may also be located on the side wall 22 b of the first housing 22.
  • the material of the first housing 22 may be metal.
  • the material of the first housing 22 may be steel alloy, aluminum alloy, iron alloy, copper alloy, nickel alloy, or the like.
  • the material of the first housing 22 is stainless steel.
  • the material of the first shell 22 may also be a plastic that is resistant to corrosion by the electrolyte.
  • the material of the first housing 22 may be polystyrene (PS), polypropylene (PP), polyethylene (PE), polyester (PET), polyvinyl chloride (PVC), polyimide ( PI), acrylonitrile-butadiene-styrene plastic (ABS), polycarbonate (PC), polyamide (PA), etc.
  • the material of the first housing 22 is polypropylene.
  • the material of the first housing 22 may also be ceramic.
  • the material of the second housing 21 may be metal.
  • the material of the second housing 21 may be steel alloy, aluminum alloy, iron alloy, copper alloy, nickel alloy, or the like.
  • the material of the second housing 21 is stainless steel.
  • the material of the second shell 21 may also be plastic that is resistant to corrosion by the electrolyte.
  • the material of the second housing 21 may be polystyrene, polypropylene, polyethylene, polyester, polyvinyl chloride, polyimide, acrylonitrile-butadiene-styrene plastic, polycarbonate, Polyamide etc.
  • the material of the second housing 21 is polypropylene.
  • the material of the second housing 21 may also be ceramic.
  • the cross-sections of the first housing 22 and the second housing 21 may be circular, square, elliptical, triangular, polygonal, or the like.
  • first shell 22 and the second shell 21 can be formed into desired shapes by using processes such as laser cutting and machine tool processing.
  • the first housing 22 may also be formed by stamping and forming a punching pit (that is, the accommodating space).
  • the first housing 22 and the second housing 21 may be connected by welding, clamping, or the like.
  • the battery 100 is a button battery
  • the materials of the first housing 22 and the second housing 21 are both stainless steel
  • the first housing 22 and the second housing 21 Connected by welding process.
  • the width of the first housing 22 does not exceed 1000 mm, and the height of the first housing 22 does not exceed 1000 mm.
  • the width W 3 of the second housing 21 does not exceed 1000 mm, and the thickness T 3 of the second housing 21 does not exceed 100 mm.
  • the central axes of the second through hole 300 and the first through hole 210 coincide, and the projection of the second through hole 300 on the second housing 21 It is completely located in the first through hole 210.
  • the projection of the second through hole 300 on the second housing 21 may also cover the first through hole 210.
  • the central axes of the second through hole 300 and the first through hole 210 do not coincide, and the projection of the second through hole 300 on the second housing 21 is completely located in the The projection of the first through hole 210 or the second through hole 300 on the second housing 21 may also cover the first through hole 210.
  • the shape of the first through hole 210 and the second through hole 300 is circular, and the first through hole 210 and the second through hole The aperture of 300 does not exceed 100mm.
  • the diameter of the first through hole 210 and the second through hole 300 is approximately 12 mm.
  • the conductive member 40 covers the second through hole 300, the width of the conductive member 40 W 2 is greater than the hole diameter of the second through hole 300.
  • the width W 1 of the insulating member 30 is greater than the aperture of the first through hole 210.
  • the shape of the first through hole 210 and the second through hole 300 is not limited to a circle, and may also be square, elliptical, triangular, polygonal, or the like.
  • the battery cell 10 further includes a second tab 102 with a different polarity from the first tab 101, and the second tab 102 is electrically connected to The first housing 22.
  • the entire housing assembly 20 can exhibit the same electrical polarity as the second tab 102.
  • the conductive member 40 can exhibit the same electrical polarity as the first tab 101. Since the conductive member 40 and the second housing 21 are electrically insulated by the insulating member 30, the conductive member 40 and the housing assembly 20 can be made to exhibit opposite electrical polarities.
  • the first tab 101 is a positive tab
  • the second tab 102 is a negative tab
  • the second tab 102 can be electrically connected to the first housing 22 through a welding process
  • the first tab 101 can also be electrically connected to the conductive member 40 through a welding process.
  • the second tab 102 can also be electrically connected to the second housing 21.
  • the conductive member 40 and the housing assembly 20 can also have opposite electrodes. sex.
  • the battery cell 10 further includes a first pole piece 11 and a second pole piece 12, and the first pole piece 101 and the second pole piece 102 are respectively It is electrically connected to the first pole piece 11 and the second pole piece 12.
  • the first pole piece 11 includes a first current collector and a first active material layer formed on the first current collector.
  • the second pole piece 12 includes a second current collector and a second active material layer formed on the second current collector.
  • the first tab 101 and the second tab 102 may be electrically connected to the first current collector and the second current collector through a welding process, respectively.
  • the first pole piece 11 and the second pole piece 12 are laminated to form the battery core 10. More specifically, an isolation film (not shown) may be provided between the first pole piece 11 and the second pole piece 12.
  • the second housing 21 is provided with a liquid injection hole (not shown), and electrolyte can be injected through the liquid injection hole.
  • a liquid injection plug 211 is provided in the liquid injection hole, and the liquid injection plug 211 is used to seal the liquid injection hole to prevent the injected electrolyte from leaking or external impurities from entering the battery.
  • the liquid injection hole may also be located on the first housing 22.
  • another embodiment of the present application further provides a battery 200.
  • the difference from the battery 100 is that the battery 200 is a wound battery, that is, the first pole piece 11 and the first pole piece 11
  • the diode 12 is wound to form the battery core 10.
  • the present application also provides an electric device 1, and the electric device 1 includes the battery 100 or the battery 200 as described above.
  • the electrical device 1 may be a consumer electronic product, such as a smart phone. It can be understood that, in other embodiments, the electrical device 1 may also be an electric tool, an energy storage device, a power device, and the like. For example, the electrical device 1 may also be an electric vehicle.

Abstract

一种电池，包括电芯和用于容置所述电芯的壳体组件，所述电芯包括第一极耳。所述电池还包括绝缘件和导电件，所述绝缘件连接于所述壳体组件和所述导电件之间。所述壳体组件设有第一通孔，所述绝缘件设有与所述第一通孔连通的第二通孔，所述第一极耳电连接于所述导电件。本申请还提供一种具有所述电池的用电装置。本申请所述导电件可用于取代现有技术中的极柱，避免极柱占用所述壳体组件的内部空间，提高电池的能量密度。

Description

电池和具有所述电池的用电装置 技术领域
本申请涉及一种电池和具有所述电池的用电装置。
背景技术
电池由于其便携性受到广大欢迎，在便携式电子设备等领域中有广泛的应用。众所周知，电池通常包括壳体、顶盖以及电芯等。其中，所述电芯位于所述壳体的内部，所述顶盖位于所述壳体上端的开口处。所述顶盖中穿设有极柱，所述极柱与所述电芯电连接以实现对外部供电。
然而，为满足安装要求，现有技术中的极柱需要设置为工字形，即包括极柱本体和位于所述极柱本体两侧的极柱板，两个所述极柱板分别安装于所述顶盖的两个表面。为使得所述极柱与所述顶盖之间电绝缘，两个所述极柱板与所述顶盖之间均需要设置一层绝缘垫。因此，沿垂直于所述顶盖的方向，所述顶盖在设有所述极柱的位置另外增加了两层极柱板和两层绝缘垫共四层厚度，导致所述顶盖的整体厚度增大，进而造成能量密度损失。
发明内容
有鉴于此，有必要提供一种能够提高电池能量密度的电池。
另外，还有必要提供一种具有所述电池的用电装置。
本申请提供一种电池，包括电芯和用于容置所述电芯的壳体组件，所述电芯包括第一极耳。所述电池还包括绝缘件和导电件，所述绝缘件连接于所述壳体组件和所述导电件之间。所述壳体组件设有第一通孔，所述绝缘件设有与所述第一通孔连通的第二通孔，所述第一极耳电连接于所述导电件。
在本申请一些实施方式中，所述导电件覆盖所述第二通孔，并将所述电芯密封于所述壳体组件内。
在本申请一些实施方式中，所述导电件通过所述绝缘件粘接在所述壳体组件上。
在本申请一些实施方式中，所述绝缘件的材质包括聚烯烃、聚氯乙烯或氟橡胶中的其中至少一种。
在本申请一些实施方式中，所述绝缘件的材质包括非极性聚烯烃和位于所述非极性聚烯烃中的绝缘粒子。
在本申请一些实施方式中，所述绝缘件和所述导电件均位于所述壳体组件内。
在本申请一些实施方式中，所述绝缘件和所述导电件均位于所述壳体组件外。
在本申请一些实施方式中，所述绝缘件的厚度为0.01mm-0.3mm，所述导电件的厚度为0.1mm-2mm。
在本申请一些实施方式中，所述壳体组件包括第一壳体及第二壳体，所述第一壳体限定出用于容置所述电芯的容置空间，所述第二壳体连接所述第一壳体以封闭所述容置空间，所述第一通孔位于所述第二壳体。
在本申请一些实施方式中，所述第二通孔和所述第一通孔的中心轴重合，所述第二通孔在所述第二壳体上的投影完全位于所述第一通孔内或所述第二通孔在所述第二壳体上的投影覆盖所述第一通孔。
在本申请一些实施方式中，所述第二通孔和所述第一通孔的中心轴不重合，所述第二通孔在所述第二壳体上的投影完全位于所述第一通孔内或所述第二通孔在所述第二壳体上的投影覆盖所述第一通孔。
在本申请一些实施方式中，所述绝缘件的宽度小于所述第二壳体的宽度，所述导电件的宽度小于所述绝缘件的宽度。
在本申请一些实施方式中，所述电芯还包括与所述第一极耳极性不同的第二极耳，所述第二极耳电连接于所述第一壳体。
在本申请一些实施方式中，所述电芯还包括第一极片和第二极片，所述第一极耳和所述第二极耳分别电连接于所述第一极片和所述第二极片，所述第一极片和所述第二极片经叠片或卷绕形成所述电芯。
在本申请一些实施方式中，所述第一通孔和所述第二通孔的形状为圆形，所述第一通孔和所述第二通孔的孔径不超过100mm。
本申请还提供一种用电装置，所述用电装置包括如上所述的电池。
本申请设置所述导电件并将所述第一极耳电连接于所述导电件，外部电连接件连接所述导电件后可使得所述第一极耳的极性引出所述壳体组件。因此，所述导电件可用于取代现有技术中的极柱。相较于现有技术中设置极柱导致壳体组件需要另外增加四层厚度的情况，本申请所述壳体组件上只需增加绝缘件和导电件两层厚度，即减小了所述壳体组件的厚度，在电池的整体体积相同的情况下，有利于提高所述电池的能量密度。
附图说明
图1为本申请一实施方式的电池的结构示意图。
图2为图1所示的电池的俯视图。
图3为图1所示的电池的剖视图。
图4为图3所示的电池的第二壳体、绝缘件和导电件的剖视图。
图5为图1所示的电池于另一实施方式中的剖视图。
图6为图1所示的电池的壳体组件于另一实施方式中的剖视图。
图7为图1所示的电池的壳体组件于又一实施方式中的剖视图。
图8为本申请另一实施方式的电池的剖视图。
图9为本申请一实施方式的用电装置的模块架构图。
主要元件符号说明
用电装置          1
电芯              10
第一极片          11
第二极片          12
壳体组件          20
第二壳体          21
第一壳体          22
底部              22a
侧壁              22b
绝缘件            30
导电件            40
电池              100，200
第一极耳          101
第二极耳          102
第一通孔          210
注液塞            211
容置空间          220
第二通孔          300
厚度              T 1，T 2，T 3
宽度              W 1，W 2，W 3
如下具体实施方式将结合上述附图进一步说明本申请。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅为本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施方式及实施方式中的特征可以相互组合。
请参阅图1至图4，本申请一实施方式提供一种电池100，所述电池100包括电芯10和用于容置所述电芯10的壳体组件20。所述电芯10包括第一极 耳101。所述电池100还包括绝缘件30和导电件40，所述绝缘件30连接于所述壳体组件20和所述导电件40之间。所述壳体组件20设有第一通孔210，所述绝缘件30设有与所述第一通孔210连通的第二通孔300，所述第一极耳101电连接于所述导电件40。
本申请设置所述导电件40并将所述第一极耳101电连接于所述导电件40，外部电连接件连接所述导电件40后可使得所述第一极耳101的极性引出所述壳体组件20。因此，所述导电件40可用于取代现有技术中的极柱。相较于现有技术中设置极柱导致壳体组件需要另外增加四层厚度的情况，本申请所述壳体组件20上只需增加绝缘件30和导电件40两层厚度，即减小了所述壳体组件20的厚度，在电池100的整体体积相同的情况下，有利于提高所述电池100的能量密度。其次，可以避免挤压测试时所述极柱刺穿所述电池100的极片，从而避免短路风险。
请参阅图1至图4，所述导电件40覆盖所述第二通孔300，并将所述电芯10密封于所述壳体组件20内。当然在本申请的其他实施例中，导电件也可以不覆盖第二通孔，通过其他部件密封电池。
如图3所示，在本实施方式中，所述导电件40通过所述绝缘件30粘接在所述壳体组件20上，即，所述绝缘件30不仅将所述导电件40和所述壳体组件20电性绝缘，而且，所述绝缘件30还具有粘结特性，可以将所述导电件40固定于所述壳体组件20上。因此，所述导电件40可密封所述壳体组件20的第一通孔210，从而保证所述壳体组件20的密封性。
进一步地，所述绝缘件30的材质包括聚烯烃、聚氯乙烯或氟橡胶中的至少一种。可选地，所述绝缘件30的材质包括非极性聚烯烃和位于所述非极性聚烯烃中的绝缘粒子。所述绝缘粒子用于保证所述绝缘件30整体的绝缘性能。其中，所述非极性聚烯烃可选自聚乙烯(PE)、聚丙烯(PP)、三元乙丙橡胶(EPDM)、乙丙橡胶(EPR)或乙烯-醋酸乙烯共聚物(EVA)中的至少一种。所述绝缘粒子的粒径可以为0.001mm-0.3mm。
在另一实施方式中，所述绝缘件30还可通过热封、焊接、注塑等工艺连接于所述壳体组件20，所述导电件40还可通过焊接工艺连接于所述绝缘件 30。
如图3所示，在本实施方式中，所述绝缘件30和所述导电件40均位于所述壳体组件20内。因此，能够使得所述壳体组件20的整体外形较平整，使得所述电池100外形更规则，并因所述导电件40与所述壳体组件20的顶面设有高度差，从而可避免外短路发生。此时，外部电连接件可以经所述第一通孔210和所述第二通孔300连接所述导电件40，使得所述第一极耳101的极性可引出所述壳体组件20。
如图5所示，在另一实施方式中，所述绝缘件30和所述导电件40还可均位于所述壳体组件20外。其中，所述电池100在正常工作时会在所述壳体组件20内部产生气体，导致内部压力增大。当内部压力超过预定值时，所述导电件40会被冲开并与所述壳体组件20分离，从而达到泄压的目的，防止所述电池100爆炸，保证所述电池100的安全性。此时，所述第一极耳101穿过所述第一通孔210和所述第二通孔300电连接于所述导电件40，外部电连接件连接所述导电件40后，使得所述第一极耳101的极性可引出所述壳体组件20。
如图4所示，在本实施方式中，所述绝缘件30的厚度T 1为0.01mm-0.3mm，可选为0.15mm。所述导电件40的厚度T 2为0.1mm-2mm，可选为0.15mm。由于所述绝缘件30和所述导电件40的厚度较薄，有利于减小所述电池100的整体厚度。
进一步地，所述绝缘件30的宽度W 1和所述导电件40的宽度W 2均不超过1000mm。所述导电件40的宽度W 2可小于所述绝缘件30的宽度W 1。其中，所述绝缘件30和导电件40大致为平板状，且分别沿两个相互平行的平面延伸。所述宽度W 1为沿所述绝缘件30所在平面的任一方向上的宽度。所述宽度W 2为沿所述导电件40所在平面的同一方向上的宽度。
在本实施方式中，所述绝缘件30的形状可以为圆形、方形、椭圆形、三角形、多边形等形状。所述导电件40的形状可以为圆形、方形、椭圆形、三角形、多边形等形状。所述导电件40的形状可以与所述绝缘件30的形状相同，也可以不相同。
所述导电件40的材质可以为金属。如，所述导电件40的材质可以为钢合金、铝合金、铁合金、铜合金、镍合金等。可选地，所述导电件40的材质为铁碳合金(即不锈钢)或铝。
如图3所示，在本实施方式中，所述壳体组件20包括第一壳体22及第二壳体21，所述第一壳体22限定出用于容置所述电芯10的容置空间220，所述第二壳体21连接所述第一壳体22以封闭所述容置空间220，所述第一通孔210位于所述第二壳体21。此时，所述绝缘件30连接于所述第二壳体21和所述导电件40之间。
进一步地，所述绝缘件30的宽度W 1可小于所述第二壳体21的宽度W 3。其中，所述第二壳体21大致为平板状，且沿与所述绝缘件30平行的平面延伸。所述宽度W 1为沿所述绝缘件30所在平面的任一方向上的宽度，所述宽度W 3为沿所述第二壳体21所在平面的同一方向上的宽度。
如图6和图7所示，在另一实施方式中，所述第一通孔210还可以位于所述第一壳体22的任意位置。此时，所述绝缘件30连接于所述第一壳体22和所述导电件40之间。所述第一壳体22包括底部22a和围绕所述底部22a设置的侧壁22b，所述第二壳体21与所述第一壳体22的底部22a相对设置。如图6所示，所述第一通孔210可以位于所述第一壳体22的底部22a。如图7所示，所述第一通孔210还可以位于所述第一壳体22的侧壁22b。
所述第一壳体22的材质可以为金属。如，所述第一壳体22的材质可以为钢合金、铝合金、铁合金、铜合金、镍合金等。可选地，所述第一壳体22的材质为不锈钢。所述第一壳体22的材质还可以是耐电解液腐蚀的塑料。如，所述第一壳体22的材质可以是聚苯乙烯(PS)、聚丙烯(PP)、聚乙烯(PE)、聚酯(PET)、聚氯乙烯(PVC)、聚酰亚胺(PI)、丙烯腈-丁二烯-苯乙烯塑料(ABS)、聚碳酸酯(PC)、聚酰胺(PA)等。可选地，所述第一壳体22的材质为聚丙烯。所述第一壳体22的材质还可以是陶瓷。
所述第二壳体21的材质可以为金属。如，所述第二壳体21的材质可以为钢合金、铝合金、铁合金、铜合金、镍合金等。可选地，所述第二壳体21的材质为不锈钢。所述第二壳体21的材质还可以是耐电解液腐蚀的塑料。如， 所述第二壳体21的材质可以是聚苯乙烯、聚丙烯、聚乙烯、聚酯、聚氯乙烯、聚酰亚胺、丙烯腈-丁二烯-苯乙烯塑料、聚碳酸酯、聚酰胺等。可选地，所述第二壳体21的材质为聚丙烯。所述第二壳体21的材质还可以是陶瓷。
所述第一壳体22和所述第二壳体21的横截面可以为圆形、方形、椭圆形、三角形、多边形等形状。
制备时，所述第一壳体22和所述第二壳体21可以采用激光切割、机床加工等工艺形成所需的形状。所述第一壳体22还可以采用冲压成型形成冲坑(即，所述容置空间)。所述第一壳体22和所述第二壳体21可以通过焊接、卡接等方式连接。
在本实施方式中，所述电池100为扣式电池，所述第一壳体22和所述第二壳体21的材质均为不锈钢，所述第一壳体22和所述第二壳体21通过焊接工艺连接。
进一步地，所述第一壳体22的宽度不超过1000mm，所述第一壳体22的高度不超过1000mm。请参阅图4所示，所述第二壳体21的宽度W 3不超过1000mm，所述第二壳体21的厚度T 3不超过100mm。
请再次参阅图4，在本实施方式中，所述第二通孔300和所述第一通孔210的中心轴重合，所述第二通孔300在所述第二壳体21上的投影完全位于所述第一通孔210内。在另一实施方式中，所述第二通孔300在所述第二壳体21上的投影还可以覆盖所述第一通孔210。
在另一实施方式中，所述第二通孔300和所述第一通孔210的中心轴不重合，所述第二通孔300在所述第二壳体21上的投影完全位于所述第一通孔210内或所述第二通孔300在所述第二壳体21上的投影还可以覆盖所述第一通孔210。
如图1和图2所示，在本实施方式中，所述第一通孔210和所述第二通孔300的形状为圆形，所述第一通孔210和所述第二通孔300的孔径不超过100mm。可选地，所述第一通孔210和所述第二通孔300的孔径大约为12mm进一步地，由于所述导电件40覆盖所述第二通孔300，因此所述导电件40的宽度W 2大于所述第二通孔300的孔径。而且，所述绝缘件30的宽度W 1 大于所述第一通孔210的孔径。在其它实施方式中，所述第一通孔210和所述第二通孔300的形状并不限于圆形，还可以是方形、椭圆形、三角形、多边形等形状。
如图3和图5所示，在本实施方式中，所述电芯10还包括与所述第一极耳101极性不同的第二极耳102，所述第二极耳102电连接于所述第一壳体22。当所述第一壳体22和所述第二壳体21通过焊接工艺连接时，所述壳体组件20整体可呈现与所述第二极耳102相同的电极性。由于所述第一极耳101电连接于所述导电件40，所述导电件40可呈现与所述第一极耳101相同的电极性。由于所述导电件40与所述第二壳体21之间通过所述绝缘件30电性绝缘，因此，可使得所述导电件40和所述壳体组件20呈现相反的电极性。
在本实施方式中，所述第一极耳101为正极极耳，所述第二极耳102为负极极耳。其中，所述第二极耳102可通过焊接工艺电连接于所述第一壳体22，且所述第一极耳101也可通过焊接工艺电连接于所述导电件40。
当然，在另一实施方式中，所述第二极耳102也可以电连接于所述第二壳体21，如此，可同样使得所述导电件40和所述壳体组件20呈现相反的电极性。
如图3和图5所示，在本实施方式中，所述电芯10还包括第一极片11和第二极片12，所述第一极耳101和所述第二极耳102分别电连接于所述第一极片11和所述第二极片12。具体地，所述第一极片11包括第一集流体和形成于所述第一集流体上的第一活性材料层。所述第二极片12包括第二集流体和形成于所述第二集流体上的第二活性材料层。所述第一极耳101和所述第二极耳102可通过焊接工艺分别电连接于所述第一集流体和所述第二集流体。所述第一极片11和所述第二极片12经叠片形成所述电芯10。更具体地，所述第一极片11和所述第二极片12之间还可设有隔离膜(图未示)。
如图1和图2所示，在本实施方式中，所述第二壳体21设有注液孔(图未示)，电解液可经所述注液孔注入。所述注液孔中设有注液塞211，所述注液塞211用于密封所述注液孔，避免注入的电解液漏出或避免外界杂质进入电池内部。当然，所述注液孔还可以位于所述第一壳体22上。
请参阅图8，本申请另一实施方式还提供一种电池200，与所述电池100不同之处在于，所述电池200为卷绕电池，即，所述第一极片11和所述第二极片12经卷绕形成所述电芯10。
请参阅图9，本申请还提供一种用电装置1，所述用电装置1包括如上所述的电池100或电池200。其中，所述用电装置1可以是消费性电子产品，如智能手机。可以理解，在其它实施方式中，所述用电装置1还可以为电动工具、储能装置、动力装置等。例如，所述用电装置1还可以是电动汽车。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种电池，包括电芯和用于容置所述电芯的壳体组件，所述电芯包括第一极耳，其特征在于，
    所述电池还包括绝缘件和导电件，所述绝缘件连接于所述壳体组件和所述导电件之间；
    所述壳体组件设有第一通孔，所述绝缘件设有与所述第一通孔连通的第二通孔，所述第一极耳电连接于所述导电件。
  2. 如权利要求1所述的电池，其特征在于，所述导电件覆盖所述第二通孔，并将所述电芯密封于所述壳体组件内。
  3. 如权利要求1所述的电池，其特征在于，所述导电件通过所述绝缘件粘接在所述壳体组件上。
  4. 如权利要求1所述的电池，其特征在于，所述绝缘件的材质包括聚烯烃、聚氯乙烯或氟橡胶中的至少一种。
  5. 如权利要求4所述的电池，其特征在于，所述绝缘件的材质包括非极性聚烯烃和位于所述非极性聚烯烃中的绝缘粒子。
  6. 如权利要求1所述的电池，其特征在于，所述绝缘件和所述导电件均位于所述壳体组件内。
  7. 如权利要求1所述的电池，其特征在于，所述绝缘件和所述导电件均位于所述壳体组件外。
  8. 如权利要求1所述的电池，其特征在于，所述绝缘件的厚度为0.01mm-0.3mm，所述导电件的厚度为0.1mm-2mm。
  9. 如权利要求1所述的电池，其特征在于，所述壳体组件包括第一壳体及第二壳体，所述第一壳体限定出用于容置所述电芯的容置空间，所述第二壳体连接所述第一壳体以封闭所述容置空间，所述第一通孔位于所述第二壳体。
  10. 如权利要求9所述的电池，其特征在于，所述第二通孔和所述第一通孔的中心轴重合，所述第二通孔在所述第二壳体上的投影完全位于所述第一 通孔内或所述第二通孔在所述第二壳体上的投影覆盖所述第一通孔。
  11. 如权利要求9所述的电池，其特征在于，所述第二通孔和所述第一通孔的中心轴不重合，所述第二通孔在所述第二壳体上的投影完全位于所述第一通孔内或所述第二通孔在所述第二壳体上的投影覆盖所述第一通孔。
  12. 如权利要求9所述的电池，其特征在于，所述绝缘件的宽度小于所述第二壳体的宽度，所述导电件的宽度小于所述绝缘件的宽度。
  13. 如权利要求9所述的电池，其特征在于，所述电芯还包括与所述第一极耳极性不同的第二极耳，所述第二极耳电连接于所述第一壳体。
  14. 如权利要求13所述的电池，其特征在于，所述电芯还包括第一极片和第二极片，所述第一极耳和所述第二极耳分别电连接于所述第一极片和所述第二极片，所述第一极片和所述第二极片经叠片或卷绕形成所述电芯。
  15. 如权利要求1所述的电池，其特征在于，所述第一通孔和所述第二通孔的形状为圆形，所述第一通孔和所述第二通孔的孔径不超过100mm。
  16. 一种用电装置，其特征在于，所述用电装置包括如权利要求1至15中任一项所述的电池。
PCT/CN2020/074482 2020-02-07 2020-02-07 电池和具有所述电池的用电装置 WO2021155560A1 (zh)

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