WO2021102636A1 - 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法 - Google Patents

电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法 Download PDF

Info

Publication number
WO2021102636A1
WO2021102636A1 PCT/CN2019/120642 CN2019120642W WO2021102636A1 WO 2021102636 A1 WO2021102636 A1 WO 2021102636A1 CN 2019120642 W CN2019120642 W CN 2019120642W WO 2021102636 A1 WO2021102636 A1 WO 2021102636A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
battery cell
connecting portion
main body
support plate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/120642
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
郑于炼
张小平
王鹏
孙占宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
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
Priority to KR1020227016387A priority Critical patent/KR102582068B1/ko
Priority to CN201980063219.7A priority patent/CN112771714B/zh
Priority to BR112022010005-1A priority patent/BR112022010005B1/pt
Priority to JP2022530293A priority patent/JP7354446B2/ja
Priority to US17/058,490 priority patent/US11677125B2/en
Priority to CN202210623383.2A priority patent/CN114865245B/zh
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP19928307.8A priority patent/EP3855559B1/en
Priority to PCT/CN2019/120642 priority patent/WO2021102636A1/zh
Publication of WO2021102636A1 publication Critical patent/WO2021102636A1/zh
Anticipated expiration legal-status Critical
Priority to US18/307,232 priority patent/US12057606B2/en
Priority to US18/307,338 priority patent/US12126054B2/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • 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
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the 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
    • H01M50/10—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
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • H01M50/474—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • H01M50/477—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • H01M50/48—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by the material
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • 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
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • 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
    • 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
    • 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
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/557—Plate-shaped terminals
    • 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 disclosure relates to the field of batteries, and in particular to a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and a method for assembling the battery cell.
  • Metal shavings are generated during the welding process of the connecting piece and the top cover.
  • the common method is to apply glue on the welding position, but there is no glue that can completely resist electrolyte in the industry. .
  • the battery cell includes:
  • the electrode assembly includes a tab and a main body of a battery, and the tab is connected to the main body of the battery;
  • the cover plate assembly includes an electrode terminal and a cover plate, and the electrode terminal is provided on the cover plate;
  • a connecting piece is connected between the tab and the electrode terminal, the connecting piece includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the tab, and the second connecting Part connected with the electrode terminal;
  • the insulating support plate is arranged between the main body of the battery core and the connecting piece;
  • the insulation protection piece is arranged between the insulation support plate and the second connecting portion.
  • both the insulating support plate and the connecting piece abut the insulating protection member.
  • the insulating support plate includes a main body portion and a supporting portion connected to the main body portion, the main body portion abuts against the main body of the battery, and the supporting portion is oriented relative to the main body portion. Protruding in a direction close to the second connecting portion, the insulation protection member is provided between the supporting portion and the second connecting portion.
  • the second connecting portion protrudes in a direction closer to the electrode terminal relative to the first connecting portion, and the second connecting portion has a first recess on a side close to the electrode assembly. groove.
  • the insulation shield covers the open end of the first groove.
  • the insulating support plate includes a supporting portion protruding in the direction of the second connecting portion, and the supporting portion and the first connecting portion jointly limit the insulation protection member.
  • the insulation protection member is disposed in the first groove.
  • the insulating support plate includes a supporting portion protruding in the direction of the second connecting portion, and the supporting portion extends into the first groove and is in contact with the first concave.
  • the groove bottoms of the grooves jointly limit the insulation protection piece.
  • the insulation protection member includes foam, tape or solid gel.
  • the insulation protection member includes a solid rubber strip or a glue formed by curing the insulating pallet with glue.
  • the insulation protection member includes a glue formed by coating and curing the insulation support plate, and a region of the insulation support plate contacting the insulation protection member is provided with a plurality of second holes, Used to prevent glue overflow.
  • the insulating support plate further includes a plug-in portion connected to a side of the main body portion, and the plug-in portion is away from the battery core body with respect to the main body portion. At least a part of the tab is located between the plug-in part and the main body of the battery.
  • the battery module includes the above-mentioned battery cell.
  • the battery pack includes the above-mentioned battery module.
  • a device using a battery cell as a power source includes the above-mentioned battery cell.
  • the above-mentioned assembling method of battery cells includes:
  • An insulating support plate is provided so that the insulating protection member is arranged between the battery core body and the connecting piece.
  • the battery cell includes an electrode assembly, a cover plate assembly, a connecting piece, an insulating support plate, and an insulating protection piece, and the insulating protection piece is provided between the insulating support plate and the second connecting portion of the connecting piece.
  • the insulation protection member is used to catch the impurities falling from the second connecting part, to prevent the impurities from entering the electrode assembly to cause a short circuit, and to improve the safety performance of the battery cell.
  • Fig. 1 is an exploded schematic diagram of a battery cell provided according to some embodiments of the present disclosure
  • FIG. 2 is a schematic cross-sectional view of a battery cell provided according to some embodiments of the present disclosure
  • FIG. 3 is a schematic cross-sectional view of battery cells provided according to other embodiments of the present disclosure.
  • Figure 4 is a schematic diagram of an insulating support plate provided according to some embodiments of the present disclosure.
  • Fig. 5 is an expanded schematic diagram of battery cells provided according to some embodiments of the present disclosure during assembly
  • Fig. 6 is a partial enlarged schematic view of an insulating support plate provided according to some embodiments of the present disclosure.
  • FIG. 7 is a schematic diagram of a cover plate provided according to some embodiments of the present disclosure.
  • FIG. 8 is a schematic diagram of a battery module provided according to some embodiments of the present disclosure.
  • FIG. 9 is a schematic diagram of a battery pack provided according to some embodiments of the present disclosure.
  • FIG. 10 is a schematic diagram of a vehicle provided according to some embodiments of the present disclosure.
  • 3-cover assembly 31-electrode terminal; 32-cover; 321-first hole; 322-slot; 33-explosion-proof valve; 34-insulation;
  • 5-Insulation support plate 51-main body; 52-carrying part; 521-second groove; 522-second hole; 53-plug-in part; 54-hook; 55-vent hole;
  • the present disclosure proposes a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and a method for assembling the battery cell to alleviate the problem of impurities falling into the electrode assembly.
  • some embodiments provide a battery cell, which includes a case 1, an electrode assembly 2, a cover plate assembly 3, a connecting piece 4, an insulating support plate 5, and an insulating protection member 6. As shown in FIG. 1, some embodiments provide a battery cell, which includes a case 1, an electrode assembly 2, a cover plate assembly 3, a connecting piece 4, an insulating support plate 5, and an insulating protection member 6. As shown in FIG. 1, some embodiments provide a battery cell, which includes a case 1, an electrode assembly 2, a cover plate assembly 3, a connecting piece 4, an insulating support plate 5, and an insulating protection member 6. As shown in FIG.
  • the housing 1 is formed with a cavity 11, and the housing 1 has an open end.
  • the electrode assembly 2 is arranged in the cavity 11.
  • the cover plate assembly 3 is located at the open end of the housing 1 and covers the electrode assembly 2 so as to enclose the electrode assembly 2 in the housing 1.
  • the connecting piece 4 is arranged between the cover plate assembly 3 and the electrode assembly 2, and is used to guide the electricity generated by the electrode assembly 2 to the cover plate assembly 3.
  • a part of the insulating support plate 5 is arranged between the cover plate assembly 3 and the electrode assembly 2, and a part of the insulating support plate 5 is arranged between the connecting sheet 4 and the electrode assembly 2.
  • the insulation protection member 6 is provided between the insulation support plate 5 and the connecting piece 4.
  • the electrode assembly 2 includes a tab 21 and a cell main body 22, and the tab 21 is connected to the cell main body 22.
  • the cell body 22 includes a positive electrode sheet, a negative electrode sheet, and a separator. Both the positive electrode sheet and the negative electrode sheet include a coating area. The active material of the positive sheet is coated on the coating area of the positive sheet, and the active material of the negative sheet is coated on the coating area of the negative sheet.
  • the separator is an insulator and is arranged between the positive electrode sheet and the negative electrode sheet. The separator is used to separate the coating area of the positive electrode sheet from the coating area of the negative electrode sheet. The positive electrode sheet, the separator, and the negative electrode sheet are sequentially stacked and wound to form the cell body 22.
  • the tab 21 includes a positive tab and a negative tab.
  • the end of the positive electrode sheet has a blank area that is not coated with the positive electrode active material, and a plurality of blank areas of the positive electrode sheet are connected together to form the positive electrode tab of the electrode assembly 2.
  • the end of the negative electrode sheet has a blank area that is not coated with the negative electrode active material, and a plurality of blank areas of the negative electrode sheet are connected together to form the negative electrode tab of the electrode assembly 2.
  • the material of the positive electrode sheet includes aluminum foil.
  • the material of the negative electrode sheet includes copper foil.
  • the active material of the positive electrode sheet includes lithium cobalt oxide.
  • the negative electrode sheet active material includes silicon.
  • the cover plate assembly 3 is located at the open end of the housing 1 and covers the electrode assembly 2 so as to enclose the electrode assembly 2 in the housing 1.
  • the cover plate assembly 3 includes an electrode terminal 31 and a cover plate 32, and the electrode terminal 31 is provided on the cover plate 32.
  • the cover plate 32 is used for sealing connection with the casing 1 to enclose the electrode assembly 2 in the casing 1.
  • the cover plate 32 is provided with two first holes 321 at intervals.
  • the electrode terminal 31 includes a positive electrode terminal and a negative electrode terminal.
  • the positive electrode terminal passes through one of the two first holes 321, and the negative electrode terminal passes through the other of the two first holes 321.
  • the positive electrode terminal and the positive pole tab are correspondingly conducted, and the negative electrode terminal and the negative pole tab are conducted correspondingly.
  • an explosion-proof valve 33 is also provided on the cover plate 32.
  • the explosion-proof valve 33 is provided between the positive electrode terminal and the negative electrode terminal.
  • An explosion-proof valve 33 is provided on 32. When the internal pressure of the battery cell is too high, the explosion-proof valve 33 opens, and the mixed gas and liquid produced by charging and discharging are quickly discharged through the explosion-proof valve 33 to prevent the battery cell from being caused by excessive internal pressure. explosion occurs.
  • the cover plate 32 is in the shape of a flat plate.
  • the cover plate assembly 3 further includes an insulating member 34, which is provided between the cover plate 32 and the battery core body 22 to prevent the cover plate 32 and the battery core body 22 The contact is short-circuited.
  • the connecting piece 4 is connected between the tab 21 and the electrode terminal 31, and the connecting piece 4 is made of conductive material for connecting the conductive tab 21 and the electrode terminal 31.
  • the connecting piece 4 includes a first connecting portion 41 and a second connecting portion 42, the first connecting portion 41 is connected to the tab 21, and the second connecting portion 42 is connected to the electrode terminal 31.
  • the second connecting portion 42 protrudes toward the electrode terminal 31 relative to the first connecting portion 41, and the second connecting portion 42 has a first groove 421 on a side close to the electrode assembly 2.
  • the first connecting portion 41 has a flat plate shape.
  • the first connecting portion 41 of the connecting piece 4 is connected to the tab 21, and the portion of the connecting piece 4 other than the first connecting portion 41 is separated from the cell body 22 by an insulating support plate 5 to prevent short circuit.
  • the second connecting portion 42 of the connecting piece 4 is connected to the electrode terminal 31.
  • the tab 21 includes a positive tab and a negative tab
  • the electrode terminal 31 includes a positive electrode terminal and a negative electrode terminal
  • a connecting piece 4 is provided between the positive electrode terminal and the positive tab to connect the positive electrode terminal with the positive electrode.
  • the tab is conductive, and another connecting piece 4 is arranged between the negative electrode terminal and the negative tab to connect the negative tab with the negative electrode terminal.
  • Part of the insulating support plate 5 is provided between the battery core body 22 and the connecting piece 4.
  • the insulating support plate 5 separates the connecting piece 4 from the battery main body 22, so that the connecting piece 4 is connected to the battery main body 22 through the tab 21, instead of the connecting piece 4 being directly connected to the battery main body 22, avoiding the connecting piece 4 It is directly connected to the cell main body 22 and short-circuited.
  • Part of the insulating support plate 5 is located between the cover plate assembly 3 and the battery core body 22, and is used to isolate the cover plate assembly 3 from the battery core body 22, so that the cover plate assembly 3 passes through the electrode terminals 31 and the connecting pieces 4.
  • the tab 21 is connected to the battery core main body 22 instead of the cover plate assembly 3 being directly connected to the battery core main body 22, so as to avoid the cover plate assembly 3 being directly connected to the battery core main body 22 and short circuit.
  • the insulation protection member 6 is provided between the insulation support plate 5 and the second connection portion 42 of the connection piece 4.
  • the battery cell requires laser welding during the assembly process, impurities (such as metal shavings) will be generated during the laser welding process.
  • impurities such as metal shavings
  • external impurities may also fall into the first recess of the second connecting portion 42.
  • the insulation protection member 6 is provided between the insulation support plate 5 and the second connection portion 42 of the connecting piece 4. Even if the impurities of the second connection portion 42 fall, they will be caught by the insulation protection member 6, thereby avoiding impurities A short circuit occurs when entering the electrode assembly 2, which improves the safety performance of the battery cell.
  • the insulation protection member 6 When the battery cell is normally placed, the insulation protection member 6 is pressed on the insulation support plate 5 due to gravity, and there may be a gap between the connecting piece 4 and the insulation protection member 6, in order to prevent the insulation protection member 6 from vibrating due to the battery cell When shaking or out-of-position occurs, the stability of the position of the insulation protection member 6 is improved, and the insulation support plate 5 and the connecting piece 4 abut against the insulation protection member 6.
  • the insulating pallet 5 includes a main body 51 and a supporting portion 52 connected to the main body 51.
  • the main body 51 abuts against the cell main body 22, and the supporting portion 52 is closer to the main body 51.
  • the direction of the second connecting portion 42 is convex.
  • the insulation protection member 6 is provided between the supporting portion 52 and the second connecting portion 42. Impurities falling from the second connecting portion 42 will be caught by the insulating protective member 6, so as to prevent impurity from entering the electrode assembly 2 and causing a short circuit, thereby improving the safety performance of the battery cell.
  • the main body 51 has a flat plate shape.
  • the insulating protection member 6 covers the open end of the first groove 421.
  • the supporting portion 52 and the first connecting portion 41 jointly limit the insulation protection member 6.
  • both the supporting portion 52 and the first connecting portion 41 abut against the insulation protection member 6. Furthermore, the area where the first connecting portion 41 is connected to the circumferential side wall of the first groove 421 abuts against the insulation protection member 6.
  • the insulation protection member 6 is disposed in the first groove 421.
  • the supporting portion 52 extends into the first groove 421, and the supporting portion 52 and the bottom of the first groove 421 jointly limit the insulation protection member 6.
  • both the supporting portion 52 and the bottom of the first groove 421 abut against the insulation protection member 6.
  • the insulating support plate 5 further includes a plug-in portion 53, which is connected to the side of the main body portion 51, and the plug-in portion 53 is away from the battery core relative to the main body portion 51.
  • the plug-in portion 53 is provided to prevent the tab 21 from being inserted into the cell main body 22 to cause a short circuit.
  • the plug-in portion 53 is connected to the main body portion 51 through a transition section, and the surface of the plug-in portion 53 is parallel to the surface of the main body portion 51. Further, the surface of the insertion portion 53, the surface of the main body portion 51, and the surface of the supporting portion 52 are all parallel to each other.
  • the insulating support plate 5 is also provided with a hook 54 extending in the direction of the cover assembly 3.
  • a card slot 322 is provided on the cover plate 32.
  • the cover plate 32 is in a closed connection with the housing 1, and the hook 54 on the insulating support plate 5 is connected with the groove 322 on the cover plate 32.
  • the hook 54 is provided on the main body 51 and is located at the end of the insulating support plate 5. Since the main body 51 is close to the battery main body 22 relative to the supporting portion 52 and the plug-in portion 53, it is provided on the main body 51 The hook 54 extending in the direction of the cover plate assembly 3 makes clever use of the space between the main body 51 of the insulating support plate 5 and the cover plate assembly 3, without increasing the thickness of the insulating support plate 5, and there is no need for a separate connecting piece to connect.
  • the insulating support plate 5 and the cover plate assembly 3 have simple structure and convenient installation.
  • the plug-in portion 53 of the insulating support plate 5 isolates the tab 21 from the battery core main body 22 and fixes it with the cover assembly 3 to ensure that the tab 21 and the battery main body 22 are sufficiently separated to prevent the tab 21 from being inserted into the battery main body 22 There is a risk of short circuit internally.
  • the insulating support plate 5 is also provided with an exhaust hole 55.
  • the exhaust hole 55 is used to exhaust the gas or liquid generated by the battery assembly 2, and is also used to inject electrolyte into the battery assembly 2, and also has a lightening effect.
  • the insulating support plate 5 is provided with at least two rows of vent holes 55, and the number of vent holes 55 in each row is at least two.
  • the two cell bodies 22 are respectively arranged on both sides of the insulating support plate 5, and each cell body 22 is connected to the tab 21, Both sides of the insulating support plate 5 are provided with plug-in parts 53. At least a part of the tab 21 corresponding to one of the cell main bodies 22 is located between the insertion portion 53 on one side and the cell main body 22, and at least a part of the tab 21 corresponding to the other cell main body 22 is located on the other side Between the plug-in portion 53 and the main body 22 of the battery.
  • the main body 51 of the insulating support plate 5 abuts against the main body 22 of the battery, and the two plug-in portions 53 are respectively provided on two opposite sides of the main body 51 to form a wing-like shape to prevent the main body 51 from being pressed against the tab 21 , And can prevent the insulating support plate 5 from being too thick.
  • the main body portion 51 of the insulating support plate 5 is elongated, and two supporting portions 52 are provided at intervals in the longitudinal direction of the main body portion 51, and each supporting portion 52 corresponds to a position A connecting piece 4 is provided on the upper side.
  • Both sides of the main body 51 corresponding to the positions of the two supporting portions 52 are respectively provided with inserting portions 53.
  • Both ends of the main body 51 in the longitudinal direction are provided with hooks 54 for connecting with the cover assembly 3.
  • the exhaust hole 55 is provided between the two supporting portions 52.
  • the insulation protection member 6 includes foam, tape or solid gel.
  • the insulating protection member 6 includes a solid rubber strip.
  • the insulating protection member 6 includes a glue formed by curing the insulating support plate 5 with glue.
  • a plurality of second holes 522 are provided in the area of the insulating support plate 5 that is in contact with the insulating protection member 6, that is, the area where the insulating support plate 5 is glued, to prevent glue overflow.
  • a plurality of second holes 522 are provided in the supporting portion 52 to prevent glue overflow when the supporting portion 52 is applied with glue.
  • the insulation protection member 6 is made of soft material, can be deformed adaptively according to the shape of the installation space, and is suitable for the narrow space in the battery cell.
  • Some embodiments provide a method for assembling the above-mentioned battery cell, which includes:
  • connection piece 4 Provide the connecting piece 4 and the electrode assembly 2, and connect the first connecting portion 41 of the connecting piece 4 with the tab 21 of the electrode assembly 2;
  • the insulating support plate 5 is provided so that the insulating protection member 6 is arranged between the battery core body 22 and the connecting piece 4.
  • providing the connecting piece 4 and the electrode assembly 2 includes positioning the electrode assembly 2 and the connecting piece 4 so that the tab 21 is located on the first side of the connecting piece 4.
  • Providing the cover plate assembly 3 includes positioning the cover plate assembly 3 and the connecting piece 4 so that the electrode terminal 31 is located on the second side of the connecting piece 4.
  • the first side and the second side of the insulation protection member 6 are opposite sides.
  • arranging the insulation protection member 6 between the cell main body 22 and the connection piece 4 includes: abutting the insulation support plate 5 with the first side of the insulation protection piece 6, and connecting the connection piece 4 and the insulation protection piece The second side of 6 abuts to fix the position of the insulation protection member 6.
  • the method of assembling the battery cell includes:
  • a connecting piece 4 is respectively arranged above the position of the two electrode terminals 33 on the cover plate 32; connecting the second connecting portion 42 of the connecting piece 4 with the electrode terminal 33;
  • a battery core body 22 is respectively tiled on both sides of the cover plate 32;
  • the insulation protection member 6 is arranged on the second connecting portion 42 of the connecting piece 4;
  • An insulating support plate 5 is placed above the connection piece 4 so that the insulation protection member 6 is disposed between the battery core main body 22 and the connection piece 4.
  • the cover plate assembly 3 is located at the open end of the housing 1.
  • the cover plate 32 is connected to the housing 1 in a closed connection to connect the electrode
  • the assembly 2 is enclosed in the housing 1.
  • an insulating member 34 is further provided between the cover plate 32 and the battery core body 22 to prevent the cover plate 32 from contacting the battery core body 22 to cause a short circuit.
  • some embodiments provide a battery module 200 including the above-mentioned battery cell 100.
  • the battery module 200 includes a plurality of battery cells 100, at least some of the battery cells 100 are connected in series, and at least some of the battery cells 100 are connected in parallel.
  • some embodiments provide a battery pack 300 including the above-mentioned battery module 200.
  • the battery pack 300 includes a first case cover 301 and a second case cover 302.
  • the first case cover 301 and the second case cover 302 are connected to form a closed case body, and the battery module 200 is arranged on the first case cover 301 and the second case cover 302 to form a closed case. Inside the closed box.
  • the battery pack 300 includes two or more battery modules 200, at least some of the battery modules 200 are connected in series, and at least some of the battery modules 200 are connected in parallel.
  • some embodiments provide a device that uses a battery cell as a power source, which includes the above-mentioned battery cell 100.
  • Devices that use battery cells as power sources include vehicles 400 or ships.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
PCT/CN2019/120642 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法 Ceased WO2021102636A1 (zh)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP19928307.8A EP3855559B1 (en) 2019-11-25 2019-11-25 Battery cell, battery module, battery pack, device using battery cell as power supply, and battery cell assembling method
CN201980063219.7A CN112771714B (zh) 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
BR112022010005-1A BR112022010005B1 (pt) 2019-11-25 Célula de bateria, módulo de bateria, conjunto de bateria, dispositivo que utiliza célula de bateria como fonte de alimentação e método de montagem da célula de bateria
JP2022530293A JP7354446B2 (ja) 2019-11-25 2019-11-25 バッテリセル、バッテリモジュール、バッテリパック、バッテリセルを電源として使用した装置とバッテリセルの組立方法
US17/058,490 US11677125B2 (en) 2019-11-25 2019-11-25 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell
KR1020227016387A KR102582068B1 (ko) 2019-11-25 2019-11-25 배터리 셀, 배터리 모듈, 배터리 팩, 배터리 셀을 전원으로 사용하는 장치, 및 배터리셀 조립 방법
PCT/CN2019/120642 WO2021102636A1 (zh) 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
CN202210623383.2A CN114865245B (zh) 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
US18/307,338 US12126054B2 (en) 2019-11-25 2023-04-26 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell
US18/307,232 US12057606B2 (en) 2019-11-25 2023-04-26 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/120642 WO2021102636A1 (zh) 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US17/058,490 A-371-Of-International US11677125B2 (en) 2019-11-25 2019-11-25 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell
US18/307,232 Continuation US12057606B2 (en) 2019-11-25 2023-04-26 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell
US18/307,338 Continuation US12126054B2 (en) 2019-11-25 2023-04-26 Battery cell, battery module, battery pack, device using battery cell as power supply, and method for assembling battery cell

Publications (1)

Publication Number Publication Date
WO2021102636A1 true WO2021102636A1 (zh) 2021-06-03

Family

ID=75693770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/120642 Ceased WO2021102636A1 (zh) 2019-11-25 2019-11-25 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法

Country Status (6)

Country Link
US (3) US11677125B2 (https=)
EP (1) EP3855559B1 (https=)
JP (1) JP7354446B2 (https=)
KR (1) KR102582068B1 (https=)
CN (2) CN114865245B (https=)
WO (1) WO2021102636A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4287386A4 (en) * 2021-11-19 2024-05-01 Contemporary Amperex Technology Co., Limited Battery cell, battery, electric device, and method and apparatus for manufacturing battery cell

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021102638A1 (zh) 2019-11-25 2021-06-03 宁德时代新能源科技股份有限公司 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
EP4120466B1 (en) * 2021-05-28 2024-03-06 Contemporary Amperex Technology Co., Limited Battery cell, battery, electric device, and manufacturing method and device for battery cell
CN113314760B (zh) * 2021-05-31 2022-05-27 蜂巢能源科技有限公司 电芯的制造方法及电芯
EP4167348A4 (en) * 2021-06-02 2024-09-04 Contemporary Amperex Technology Co., Limited BATTERY CELL, BATTERY, POWER CONSUMPTION DEVICE AND DEVICE AND METHOD FOR PRODUCING A BATTERY CELL
EP4184669B1 (en) * 2021-09-30 2025-11-12 Contemporary Amperex Technology (Hong Kong) Limited Battery cell and manufacturing method and manufacturing system therefor, battery, and power consuming device
CN114142180B (zh) * 2021-11-30 2024-01-26 江苏正力新能电池技术有限公司 电池转接构件、电池以及电池的组装方法
CN114156608B (zh) * 2021-12-03 2024-03-12 合肥国轩高科动力能源有限公司 一种锂电池的多卷芯结构及其装配方法
CN217412962U (zh) * 2022-04-01 2022-09-13 无锡先导智能装备股份有限公司 定位机构及焊接定位装置
WO2023193256A1 (zh) * 2022-04-08 2023-10-12 宁德时代新能源科技股份有限公司 连接构件、电池单体、电池和用电设备
CN115064701B (zh) * 2022-05-20 2025-02-11 远景动力技术(江苏)有限公司 一种集流构件和电池制造方法
CN117438749A (zh) * 2022-07-14 2024-01-23 宁德时代新能源科技股份有限公司 电池单体、电池及用电装置
CN118648183A (zh) * 2022-09-13 2024-09-13 宁德时代新能源科技股份有限公司 电池单体、电池、用电装置及制备方法
CN118435433A (zh) * 2022-09-16 2024-08-02 宁德时代新能源科技股份有限公司 电池单体、电池及用电设备
WO2024055312A1 (zh) * 2022-09-16 2024-03-21 宁德时代新能源科技股份有限公司 电池单体、电池及用电设备
EP4510372A4 (en) * 2022-09-16 2025-08-20 Contemporary Amperex Technology Hong Kong Ltd BATTERY CELL, BATTERY AND ELECTRICAL DEVICE
CN115295976B (zh) * 2022-10-08 2023-01-13 武汉亿纬储能有限公司 极耳限位片、顶盖组件和电池
CN118511386A (zh) * 2022-10-11 2024-08-16 宁德时代新能源科技股份有限公司 转接片、电池单体、电池及用电装置
WO2024082138A1 (zh) * 2022-10-18 2024-04-25 宁德时代新能源科技股份有限公司 电池单体、电池及用电设备
CN218498319U (zh) * 2022-10-27 2023-02-17 宁德时代新能源科技股份有限公司 电池单体、电池及用电设备
JP2025518416A (ja) * 2022-11-08 2025-06-16 香港時代新能源科技有限公司 電池セル、電池及び電力消費装置
US12482623B2 (en) * 2022-11-10 2025-11-25 Eve Power Co., Ltd. Fusing device and power battery
WO2024148468A1 (zh) * 2023-01-09 2024-07-18 宁德时代新能源科技股份有限公司 电池单体、电池及用电装置
CN116111245B (zh) * 2023-02-17 2024-06-25 厦门海辰储能科技股份有限公司 端盖组件、储能装置及用电设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204102963U (zh) * 2014-10-08 2015-01-14 东莞新能源科技有限公司 动力电池顶盖结构
US20160099444A1 (en) * 2014-10-07 2016-04-07 Samsung Sdi Co., Ltd. Rechargeable battery
WO2018147603A1 (ko) * 2017-02-10 2018-08-16 삼성에스디아이 주식회사 이차 전지
CN208256820U (zh) * 2018-06-06 2018-12-18 宁德时代新能源科技股份有限公司 二次电池
CN109314197A (zh) * 2016-06-24 2019-02-05 三星Sdi株式会社 可再充电电池
CN209344216U (zh) * 2019-04-08 2019-09-03 宁德时代新能源科技股份有限公司 电池

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101265199B1 (ko) * 2011-08-08 2013-05-23 삼성에스디아이 주식회사 이차 전지
CN103078067A (zh) * 2013-01-15 2013-05-01 上海恒动汽车电池有限公司 一种锂离子电池金属外壳绝缘保护层和其制作方法
JP5672461B2 (ja) * 2013-02-15 2015-02-18 三菱自動車工業株式会社 車両用電池パック
WO2017051516A1 (ja) 2015-09-25 2017-03-30 三洋電機株式会社 非水電解質二次電池
KR102537226B1 (ko) * 2015-12-23 2023-05-26 삼성에스디아이 주식회사 이차전지
KR102422513B1 (ko) * 2016-10-24 2022-07-20 삼성에스디아이 주식회사 이차 전지
CN108615830B (zh) * 2016-12-12 2023-12-19 宁德时代新能源科技股份有限公司 动力电池顶盖结构及动力电池
CN206210861U (zh) * 2016-12-12 2017-05-31 宁德时代新能源科技股份有限公司 动力电池顶盖结构及动力电池
CN108666519B (zh) * 2017-03-31 2020-07-10 比亚迪股份有限公司 电池盖板组件、单体电池、电池模组、动力电池包和电动汽车
CN107895762B (zh) * 2017-11-24 2020-03-03 杭州天丰电源股份有限公司 一种锂离子电池
CN108428852B (zh) * 2018-01-12 2024-02-09 宁德时代新能源科技股份有限公司 二次电池及汽车

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160099444A1 (en) * 2014-10-07 2016-04-07 Samsung Sdi Co., Ltd. Rechargeable battery
CN204102963U (zh) * 2014-10-08 2015-01-14 东莞新能源科技有限公司 动力电池顶盖结构
CN109314197A (zh) * 2016-06-24 2019-02-05 三星Sdi株式会社 可再充电电池
WO2018147603A1 (ko) * 2017-02-10 2018-08-16 삼성에스디아이 주식회사 이차 전지
CN208256820U (zh) * 2018-06-06 2018-12-18 宁德时代新能源科技股份有限公司 二次电池
CN209344216U (zh) * 2019-04-08 2019-09-03 宁德时代新能源科技股份有限公司 电池

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4287386A4 (en) * 2021-11-19 2024-05-01 Contemporary Amperex Technology Co., Limited Battery cell, battery, electric device, and method and apparatus for manufacturing battery cell

Also Published As

Publication number Publication date
KR102582068B1 (ko) 2023-09-22
CN112771714B (zh) 2022-07-01
CN114865245A (zh) 2022-08-05
BR112022010005A2 (pt) 2022-08-16
JP2023505957A (ja) 2023-02-14
US12057606B2 (en) 2024-08-06
US11677125B2 (en) 2023-06-13
EP3855559A4 (en) 2021-07-28
US20210242549A1 (en) 2021-08-05
JP7354446B2 (ja) 2023-10-02
CN114865245B (zh) 2024-01-02
US12126054B2 (en) 2024-10-22
US20230261351A1 (en) 2023-08-17
EP3855559A1 (en) 2021-07-28
CN112771714A (zh) 2021-05-07
EP3855559B1 (en) 2023-08-02
US20230261350A1 (en) 2023-08-17
KR20220105635A (ko) 2022-07-27

Similar Documents

Publication Publication Date Title
WO2021102636A1 (zh) 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
CN113939935B (zh) 电池单体、电池模块、电池组、使用电池单体作为电源的装置及电池单体的组装方法
EP3989352B1 (en) Secondary battery, battery module, and device using battery as power supply
EP3937299A1 (en) Battery module and battery pack
CN101174706B (zh) 二次电池及其制造方法
KR101520391B1 (ko) 전지 팩
CN216773367U (zh) 电池顶盖、电池及电池包
KR101483131B1 (ko) 전지 팩
CN101567431A (zh) 电池组
KR20160107798A (ko) 배터리 팩
CN212434750U (zh) 电池外壳及带有该电池外壳的电池包
CN106033822A (zh) 电池包
CN210467900U (zh) 电池单体、电池模块、电池组及装置
JP4979216B2 (ja) 二次電池のパックケース
CN219246815U (zh) 电池和用电装置
US20150228960A1 (en) Battery pack
KR101648891B1 (ko) 전지 팩
WO2024045056A1 (zh) 电池和用电装置
CN221978062U (zh) 顶盖组件
KR20250134293A (ko) 지지부를 포함하는 배터리 셀
CN120879085A (zh) 电芯壳体、电芯、电池包及用电设备
KR20150094487A (ko) 전지 팩
KR20170064337A (ko) 배터리 팩

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2019928307

Country of ref document: EP

Effective date: 20201120

ENP Entry into the national phase

Ref document number: 2022530293

Country of ref document: JP

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112022010005

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112022010005

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20220523