WO2023243766A1 - Cellule de batterie, module de batterie, bloc-batterie et véhicule les comprenant - Google Patents

Cellule de batterie, module de batterie, bloc-batterie et véhicule les comprenant Download PDF

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Publication number
WO2023243766A1
WO2023243766A1 PCT/KR2022/013066 KR2022013066W WO2023243766A1 WO 2023243766 A1 WO2023243766 A1 WO 2023243766A1 KR 2022013066 W KR2022013066 W KR 2022013066W WO 2023243766 A1 WO2023243766 A1 WO 2023243766A1
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WO
WIPO (PCT)
Prior art keywords
cell
battery cell
electrode
battery
tab
Prior art date
Application number
PCT/KR2022/013066
Other languages
English (en)
Korean (ko)
Inventor
이승병
박아람
윤경순
김석제
이용태
Original Assignee
주식회사 엘지에너지솔루션
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 주식회사 엘지에너지솔루션 filed Critical 주식회사 엘지에너지솔루션
Priority to CN202280057424.4A priority Critical patent/CN117882244A/zh
Priority to EP22937659.5A priority patent/EP4318792A1/fr
Priority claimed from KR1020220110410A external-priority patent/KR102669191B1/ko
Publication of WO2023243766A1 publication Critical patent/WO2023243766A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch 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
    • H01M50/50—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
    • H01M50/572—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
    • H01M50/591—Covers
    • 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
    • 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 invention relates to a battery cell, a battery module, a battery pack, and a vehicle including the same. More specifically, the present invention relates to a battery cell, a battery module, a battery pack, and a battery pack with improved cooling performance of the battery cell while enhancing the stability of the electrode tabs, and the same. It's about cars, including:
  • Secondary batteries which are easy to apply depending on the product group and have electrical characteristics such as high energy density, are used not only in portable devices but also in electric vehicles (EV, Electric Vehicle) or hybrid vehicles (HEV, Hybrid Electric Vehicle) that are driven by an electrical drive source. It is universally applied. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency, not only because they have the primary advantage of being able to dramatically reduce the use of fossil fuels, but also because they do not generate any by-products due to energy use.
  • EV Electric Vehicle
  • HEV Hybrid Electric Vehicle
  • Types of secondary batteries currently widely used include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, and nickel zinc batteries.
  • the operating voltage of these unit secondary battery cells is approximately 2.5V to 4.5V. Therefore, when a higher output voltage is required, a battery pack is formed by connecting a plurality of battery cells in series. Additionally, a battery pack may be constructed by connecting multiple battery cells in parallel depending on the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack can be set in various ways depending on the required output voltage or charge/discharge capacity.
  • a battery module containing at least one battery cell is first configured, and other components are added using this at least one battery module to form a battery pack. This method of configuring is common.
  • the electrode tabs provided in the electrode assembly connected to the electrode leads are surrounded only by a cell case without a separate protective structure, which makes them vulnerable to external forces transmitted through the cell case or electrode leads. Additionally, in the case of conventional battery cells, there is a problem in that there is no configuration that can effectively dissipate heat generated inside the cell case to the outside during charging and discharging of the battery cell.
  • the present invention was made to solve the above-mentioned problems, and its purpose is to provide a battery cell, a battery module, a battery pack, and a vehicle including the same with improved cooling performance of the battery cell while enhancing the stability of the electrode tab.
  • a battery cell includes an electrode assembly including a cell body and an electrode tab provided on at least one of both sides of the cell body, a cell case that accommodates the electrode assembly inside, and an electrode tab outside the cell case.
  • An electrode lead extending a predetermined length and connected to the electrode assembly through the electrode tab, and a heat dissipating material accommodated inside the cell case and configured to cover at least a portion of the electrode tab, and configured to emit heat to the outside.
  • the tab protection module includes a first part that is configured to face the electrode tab and includes an electrical insulating material, and a second part that is configured to face the inner surface of the cell case and includes the heat dissipation material.
  • the second part may be configured to have a shape corresponding to the inner surface of the facing cell case.
  • the battery cell may further include an electrical insulation member configured to be disposed on an outer surface of the second portion facing the inner surface of the cell case.
  • the electrical insulation member may include at least one heat dissipation hole.
  • the first part may include a recessed seating groove that accommodates the second part.
  • At least a portion of the recessed seating groove may be formed to be rounded to correspond to at least a portion of the second portion.
  • the recessed seating groove includes a guide groove formed by recessing a predetermined depth from the outer surface in the direction of the electrode tab, and the second part may further include a protrusion configured to be inserted into the guide groove.
  • the second portion each extends from an end of the first portion toward the cell body and includes a pair of bent portions configured to face each other in a vertical direction, and the electrode tab and the electrode lead are connected.
  • the portion may be disposed between the pair of bent portions.
  • the battery cell may further include a heat transfer member disposed between one of the pair of bent portions and a portion where the electrode tab and the electrode lead are connected.
  • the battery module according to one aspect of the present invention includes at least one battery cell according to one aspect of the present invention as described above.
  • the battery pack according to one aspect of the present invention includes at least one battery module according to one aspect of the present invention as described above.
  • a vehicle according to an aspect of the present invention includes at least one battery pack according to an aspect of the present invention as described above.
  • a battery cell includes an electrode assembly including a cell body and electrode tabs provided on at least one side of both sides of the cell body, a cell case accommodating the electrode assembly inside, and an electrode tab outside the cell case.
  • An electrode lead that is drawn out a predetermined length and connected to the electrode assembly through the electrode tab at a coupling portion, and a first part accommodated inside the cell case, configured to face the electrode tab and including an electrical insulating material, and the first part
  • a tab protection module is connected to the first part and configured to face the inner surface of the cell case, and includes a second part including a heat dissipation material configured to radiate heat to the outside.
  • the battery cell may further include an electrical insulation member disposed between the outer surface of the second part and the inner surface of the cell case and the second part.
  • the electrical insulation member may include at least one heat dissipation hole.
  • the second part may include a bent portion disposed between the lower surface of the first part and the coupling portion.
  • the first part may include a polycarbonate (PC) film, a polyethylene terephthalate (PET) film, an insulating coating, or anodizing.
  • PC polycarbonate
  • PET polyethylene terephthalate
  • the second part may include aluminum, copper, carbon composite sheet material, or ceramic composite sheet material.
  • FIG. 1 is a diagram showing a battery cell according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing the battery cell of FIG. 1 from above.
  • FIG. 6 is a diagram illustrating the heat transfer flow inside the battery cell of FIG. 1 by way of example.
  • FIG. 1 is a diagram showing a battery cell 10 according to an embodiment of the present invention
  • FIG. 2 is a diagram showing the battery cell 10 of FIG. 1 from the top
  • FIG. 3 is a diagram showing the battery cell 10 of FIG. 1.
  • FIG. 4 is a cross-sectional view in the direction A-A' of FIG. 1 (in detail, FIG. 4 is a cross-sectional view of the battery cell 10 of FIG. 1 in the XZ plane based on line A-A'. ).
  • the The axial direction may mean an upward and downward direction perpendicular to both the X-axis direction and the Y-axis direction.
  • the battery cell 10 includes an electrode assembly 100, a cell case 200, an electrode lead 300, and a tab protection module 400. can do.
  • the battery cell 10 may refer to a secondary battery. These battery cells 10 may be pouch-type battery cells.
  • the electrode assembly 100 may include a cell body 110 and an electrode tab 120.
  • the electrode assembly 100 includes a first electrode plate with a first polarity, a second electrode plate with a second polarity, and a separator interposed between the first electrode plate and the second electrode plate.
  • the first electrode plate may be a positive electrode plate coated with a positive electrode active material or a negative electrode plate coated with a negative electrode active material
  • the second electrode plate may correspond to an electrode plate having a polarity opposite to that of the first electrode plate.
  • the electrode tab 120 may be at least a portion of an uncoated area on which a positive electrode active material or a negative electrode active material is not applied. This uncoated portion may be a portion that protrudes from the first or second electrode plate of the electrode assembly 100. Specifically, the electrode tab 120 may be formed by gathering parts of the uncoated area processed through a notching process. The cell body 110 may be defined as the remaining portion of the electrode assembly 100 excluding the electrode tab 120.
  • the cell body 110 may be defined as the remaining portion of the electrode assembly 100 excluding the electrode tab 120. These electrode tabs 120 may be provided on at least one of both sides of the cell body 110.
  • the electrode lead 300 may be extended out of the cell case 200 by a predetermined length. When viewed in the longitudinal direction (X-axis direction) of the battery cell 10, these electrode leads 300 may be provided as a pair and may be provided on both sides of the cell case 200, respectively, or may be provided on only one side. Additionally, a lead film F that seals between the cell case 200 and the electrode lead 300 may be interposed between the cell case 200 and the electrode lead 300. As an example, the lead film F may be provided as a heat-sealable film to increase the sealing force of the area of the cell case 200 where the electrode lead 300 is disposed. Additionally, the lead film F may be made of an insulating material to prevent short circuit of the electrode lead 300.
  • the electrode lead 300 may be connected to the electrode assembly 100 inside the cell case 200 through the electrode tab 120.
  • the electrode lead 300 may be coupled to the electrode tab 120 by welding or the like.
  • the tab protection module 400 may be accommodated inside the cell case 200 and may be configured to cover at least a portion of the electrode tab 120 .
  • the tab protection module 400 may be configured to cover a portion of the electrode tab 120 and engage the inner surface of the cell case 200.
  • the tab protection module 400 is arranged to absorb external force applied to the cell case 200, and prevents the structurally weak electrode tab 120 from being separated from the electrode lead 300 by breakage and/or impact. The impact can be dispersed to prevent damage.
  • the tab protection module 400 may be configured to radiate heat to the outside of the battery cell 10 through at least a portion. That is, at least a portion of the tab protection module 400 may include a heat dissipation material to dissipate heat generated inside the cell case 200 to the outside of the cell case 200 when the battery cell 10 is charged and discharged. You can.
  • the tab protection module 400 described above may have a shape corresponding to the inner surface of the receiving portion 220 adjacent to the case terrace T. At this time, the adjacent area of the receiving portion 220 and the case terrace T may be structurally weak due to a shape such as a bent structure.
  • the first protective cap 400a may be provided on at least one side of the cell body 110. Additionally, the first protective cap 400a may at least partially cover the upper side of the electrode tab 120.
  • This first protective cap 400a may include a first cap body 400a1 and a first cap wing 400a2.
  • the second cap wing 400b2 may be configured to extend from both ends of the second cap body 400b1. That is, the second cap wing 400b2 may cover a portion of the cell body 110 provided on both sides of the electrode tab 120. Accordingly, the second cap wing 400b2 may be configured to cover one side of the cell body 110 that is not provided with the electrode tab 120.
  • shock due to external force transmitted from the outside to the cell case 200 may be distributed to areas of the cell body 110 that are not provided with the electrode tab 120, further reducing the shock applied to the electrode tab 120. It can be minimized.
  • the hook grooves 450 may be formed as a pair to correspond to the fastening hooks 440 and provided on the first protective cap 400a. This pair of hook grooves 450 may be formed on both sides of the first cap body 400a1 in the form of grooves capable of fixing the ends of the fastening hooks 440.
  • first cap wing 400a2 of the above-described first protective cap 400a and the second cap wing 400b2 of the second protective cap 400b are the cell body 110 without the electrode tab 120. ) can be configured to adhere closely to one side of the.
  • the shock caused by external force transmitted from the outside to the cell case 200 can be more reliably distributed throughout the cell body 110, and the shock applied to the electrode tab 120 can be further minimized.
  • the tab protection module 400 may further include a slot 430 through which the electrode lead 300 passes. This slot 430 may be formed in front of the tab protection module 400.
  • the tab protection module 400 may include a first part 410 and a second part 420 .
  • each of the first hobo cap 400a and the second protective cap 400b may include a first part 410 and a second part 420.
  • the first part 410 may be configured to face the electrode tab 120.
  • This first part 410 may include an electrical insulating material. Accordingly, even when the first part 410 is in contact with the cell body 110, the electrode tab 120, etc., the occurrence of short circuits in the cell body 110, the electrode tab 120, etc. can be minimized.
  • the second part 420 may be disposed in the first part 410 and configured to face the inner surface of the cell case 200. This second part 420 may be configured to absorb heat generated inside the cell case 200 (e.g., inside the receiving portion 220) and radiate the heat to the outside of the tab protection module 400. there is. That is, the second part 420 may include a heat dissipation material.
  • first part 410 and second part 420 may be combined with each other to form the first protective cap 400a and the second protective cap 400b.
  • part of the first part 410 and the second part 420 are the first cap body 400a1 of the first protective cap 400a and the second cap body 400b1 of the second protective cap 400b.
  • the remaining portion of the first portion 410 may form the first cap wing 400a2 of the first protective cap 400a and the second cap wing 400b2 of the second protective cap 400b.
  • the first part 410 may include a material with relatively excellent electrical insulation properties.
  • the electrical insulating material of the first portion 410 may include polycarbonate (PC) film, polyethylene terephthalate (PET) film, insulating coating, or anodizing.
  • the second part 420 may include a material with relatively excellent heat dissipation properties.
  • the heat dissipation material of the second part 420 may include aluminum, copper, carbon composite sheet material, or ceramic composite sheet material.
  • the second part 420 may be configured to have a shape corresponding to the inner surface of the cell case 200 that it faces.
  • the tab protection module 400 can more efficiently dissipate heat generated inside the battery cell 10 to the outside of the battery cell 10 through the cell case 200.
  • the battery cell 10 may further include an electrical insulation member (I).
  • the electrical insulation member (I) may be configured to be disposed on the outer surface of the second part 420 facing the inner surface of the cell case 200. That is, the electrical insulation member (I) may be disposed between the inner surface of the cell case 200 and the second portion 420.
  • At least a portion of the coupling portion may be disposed adjacent to the second portion 420.
  • the electrical insulation member (I) may include at least one heat dissipation hole (H) formed through the electrical insulation member (I), as shown in FIGS. 3 to 6 .
  • the heat emitted through the second part 420 passes through the heat dissipation hole H and passes through the electrical insulation member I. It may be additionally discharged to the outside of the battery cell 10.
  • the electrical insulating material of the tab protection module 400 of the present invention can provide additional prevention measures against the above-mentioned short circuit.
  • the second part 420 may include a metal material.
  • the risk of short circuit may increase through direct contact between the second part 420 and the inner surface of the cell case 200.
  • the electrical insulation member (I) can minimize the risk of such a short circuit. Accordingly, the electrical insulation member (I) may not be provided when the second part 420 is made of a heat dissipation material rather than metal.
  • the first part 410 may include a seating groove 412 embedded in the outer surface of the first part 410 . That is, the seating groove 412 may be formed by being recessed into the outer surface of the first part 410.
  • the seating groove 412 may be formed as a recess extending from the outer surface of the first part 410 toward the inner surface of the first part 410 facing the electrode tab 120.
  • the second part 420 is disposed in the seating groove 412 and may be tightly coupled to the first part 410. That is, the seating groove 412 can accommodate the second part 420.
  • the second part 420 including a heat dissipation material can be stably and tightly coupled to the first part 410. Accordingly, heat generated inside the battery cell 10 can be more stably discharged to the outside of the battery cell 10.
  • the outer surface of the seating groove 412 may be formed to be rounded to correspond to at least a portion of the second portion 420. That is, the seating groove 412 of the first part 410 and the second part 420 may be configured to have a predetermined radius of curvature. Specifically, the seating groove 412 and the second portion 420 may have substantially the same radius of curvature.
  • the second part 420 including a heat dissipation material can be more stably and closely coupled to the first part 410. Accordingly, heat generated inside the battery cell 10 can be more stably discharged to the outside of the battery cell 10. Additionally, when the second part 420 is placed in the seating groove 412, damage to the seating groove 412 and the second part 420 can be minimized. Additionally, damage to the second portion 420 due to external force can be prevented.
  • the second part 420 may include a bent portion 422 .
  • the bent portion 422 may be formed to extend from an end of the first portion 410 toward the cell body 110 when viewed on a horizontal plane (XY plane). Additionally, the bent portion 422 of the first protective cap 400a may be configured to face the bent portion 422 of the second protective cap 400b in the vertical direction. At this time, the end of the first part 410 adjacent to the electrode lead 300 may also be configured to face in the vertical direction.
  • the pair of bent portions 422 may be formed to extend toward the cell body 110 to surround an end of each first portion 410 adjacent to the electrode lead 300. That is, the pair of bent portions 422 may surround the ends of each first portion 410 adjacent to the electrode lead 300 together with other portions of the second portion 420 .
  • the heat generated at the joint between the electrode tab 120 and the electrode lead 300, where the most heat can be generated inside the battery cell 10 is absorbed through the second part 420. can do. Accordingly, heat generated inside the battery cell 10 can be dissipated to the outside of the battery cell 10 more efficiently.
  • the heat transfer member (M) may include a first member (M1) and a second member (M2).
  • the second member M2 may be disposed between the bent portion 422 of the second protective cap 400b and the coupling portion, facing the upper surface of the bent portion 422 of the second protective cap 400b. At this time, the second member M2 may be in surface contact with the upper surface of the bent portion 422 of the second protective cap 400b.
  • the heat transfer member (M) is disposed between the portion where the electrode tab 120 and the electrode lead 300 are connected and each bent portion 422, the bent portion 422 is connected to the electrode tab 120 and the electrode. It is possible to prevent direct contact with the portion where the lead 300 is connected. Accordingly, the occurrence of a short circuit at the portion where the electrode tab 120 and the electrode lead 300 are connected can be minimized.
  • FIG. 7 is a diagram showing the battery cell 12 according to the second embodiment of the present invention
  • FIG. 8 is a diagram showing the inside of the battery cell 12 of FIG. 7 from the side.
  • the seating groove 412 of the first portion 410 may include a guide groove 412a.
  • the guide groove 412a may be formed by being recessed to a predetermined depth in the direction from the seating groove 412 to the electrode tab 120. That is, the guide groove 412a may be formed by being recessed from the outer surface of the seating groove 412.
  • the second part 420 including a heat dissipation material can be more stably seated on the first part 410. Accordingly, heat generated inside the battery cell 10 can be more stably discharged to the outside of the battery cell 10.
  • At least one battery cell 10 or 12 according to the present invention may be provided to form a battery module. That is, the battery module according to the present invention may include at least one battery cell 10 or 12 according to the present invention. In detail, at least one battery cell 10 or 12 may form a cell assembly, and the cell assembly may be accommodated in a module case.
  • the battery pack according to the present invention may include at least one battery module according to the present invention.
  • the battery pack may further include a pack case for accommodating the battery module inside and various devices for controlling charging and discharging of the battery pack, such as a battery management system (BMS), a current sensor, and a fuse. .
  • BMS battery management system

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne : un élément de batterie ayant une stabilité de languette d'électrode améliorée et une performance de refroidissement de cellule de batterie améliorée en même temps ; un module de batterie ; un bloc-batterie ; et un véhicule le comprenant. L'élément de batterie selon un aspect de la présente invention comprend : un ensemble électrode comprenant un corps de cellule, et une languette d'électrode disposée au niveau d'au moins l'un des deux côtés du corps de cellule ; un boîtier de cellule pour recevoir l'ensemble électrode à l'intérieur de celui-ci ; un fil d'électrode qui est tiré sur une longueur prédéterminée à partir du boîtier de cellule et qui est connecté par l'intermédiaire de la languette d'électrode à l'ensemble électrode ; et un module de protection de languette qui est logé à l'intérieur du boîtier de cellule et conçu pour recouvrir au moins une partie de la languette d'électrode, et qui comprend un matériau de dissipation de chaleur conçu pour dissiper la chaleur vers l'extérieur.
PCT/KR2022/013066 2022-06-13 2022-08-31 Cellule de batterie, module de batterie, bloc-batterie et véhicule les comprenant WO2023243766A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280057424.4A CN117882244A (zh) 2022-06-13 2022-08-31 电池电芯、包括该电池电芯的电池模块、电池组及车辆
EP22937659.5A EP4318792A1 (fr) 2022-06-13 2022-08-31 Cellule de batterie, module de batterie, bloc-batterie et véhicule les comprenant

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20220071596 2022-06-13
KR10-2022-0071596 2022-06-13
KR10-2022-0110410 2022-08-31
KR1020220110410A KR102669191B1 (ko) 2022-06-13 2022-08-31 배터리 셀, 배터리 모듈, 배터리 팩 및 이를 포함하는 자동차

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WO2023243766A1 true WO2023243766A1 (fr) 2023-12-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010045058A (ko) * 1999-11-02 2001-06-05 김순택 리튬 폴리머 전지
US6515449B1 (en) * 2001-11-21 2003-02-04 Ngk Spark Plug Co., Ltd Battery with lead/nugget protection insert
KR20030031286A (ko) * 2001-10-13 2003-04-21 삼성에스디아이 주식회사 리튬 이차 전지
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CN112687993A (zh) * 2020-12-24 2021-04-20 宁德新能源科技有限公司 电芯、电池及用电装置
KR20220071596A (ko) 2020-11-24 2022-05-31 최영호 열손실을 최소화한 보온 케이싱 제조 방법 및 연결방법

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US6515449B1 (en) * 2001-11-21 2003-02-04 Ngk Spark Plug Co., Ltd Battery with lead/nugget protection insert
KR20180103625A (ko) * 2017-03-10 2018-09-19 삼성전자주식회사 방열 플레이트를 포함하는 배터리 및 이를 포함하는 전자 장치
KR20220071596A (ko) 2020-11-24 2022-05-31 최영호 열손실을 최소화한 보온 케이싱 제조 방법 및 연결방법
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