WO2023224270A1 - Dispositif et méthode d'étanchéité de boîtier de batterie de type poche - Google Patents

Dispositif et méthode d'étanchéité de boîtier de batterie de type poche Download PDF

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Publication number
WO2023224270A1
WO2023224270A1 PCT/KR2023/005117 KR2023005117W WO2023224270A1 WO 2023224270 A1 WO2023224270 A1 WO 2023224270A1 KR 2023005117 W KR2023005117 W KR 2023005117W WO 2023224270 A1 WO2023224270 A1 WO 2023224270A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
battery case
roller
pouch
wheel
Prior art date
Application number
PCT/KR2023/005117
Other languages
English (en)
Korean (ko)
Inventor
이근준
백승구
Original Assignee
에스케이온 주식회사
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 에스케이온 주식회사 filed Critical 에스케이온 주식회사
Publication of WO2023224270A1 publication Critical patent/WO2023224270A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • 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
    • H01M50/183—Sealing members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7146—Battery-cases
    • 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

  • This technology relates to secondary batteries, and more specifically, this technology relates to a pouch-type battery case sealing device and method.
  • a secondary battery includes an electrode assembly including a cathode, a cathode, and a separator disposed between them, and a battery case, which is an exterior material that seals and stores the electrode assembly together with an electrolyte.
  • These secondary batteries may be classified into a pouch type, prismatic type, or cylindrical type depending on the shape and structure of the battery case.
  • pouch-type secondary batteries are widely used due to the advantages of relatively free shape, simple structure, and large electric capacity per unit volume.
  • Embodiments of the present invention provide a pouch-type battery case sealing device and method.
  • a battery case sealing device includes a lower heat bar disposed below a sealing portion including at least one corner of a plurality of corners of a pouch-type battery case accommodating an electrode assembly, and one end of the sealing portion. It may include an upper sealing roller that heat-seals the sealing portion while moving the surface of the sealing portion in a direction from the other end of the sealing portion, and an upper heat bar that is coupled to the sealing roller and transmits heat energy to the sealing roller.
  • a method of sealing a pouch-type battery case accommodating an electrode assembly includes providing heat energy to a lower portion of a sealing portion including at least one edge among a plurality of edges of the pouch-type battery case. , providing heat energy to an upper sealing roller disposed on the upper part of the sealing part and in contact with the upper surface of the sealing part, and moving the sealing roller on the surface of the sealing part in the direction from one end of the sealing part to the other end of the sealing part. It can be included.
  • a pouch-type battery case sealing device and method are provided.
  • FIG. 1 is a diagram for explaining the structure of a pouch-type battery case accommodating an electrode assembly.
  • Figure 2 is a diagram for explaining another embodiment of a pouch-type battery case.
  • Figure 3 is a diagram for explaining a pouch-type battery case sealing device according to the prior art.
  • Figure 4 is a side view of the pouch-type battery case sealing device of Figure 3.
  • Figure 5 is a diagram for explaining a pouch-type battery case sealing device according to an embodiment of the present invention.
  • Figure 6 is a side view of the pouch-type battery case sealing device of Figure 5.
  • Figure 7 is a diagram for explaining a pouch-type battery case sealing device according to another embodiment of the present invention.
  • Figure 8 is a side view of the pouch-type battery case sealing device of Figure 7.
  • Figure 9 is a diagram for explaining a pouch-type battery case sealing device according to another embodiment of the present invention.
  • Figure 10 is a side view of the pouch-type battery case sealing device of Figure 9.
  • FIG. 11 is a diagram for explaining various embodiments of a sealing roller.
  • FIG. 1 is a diagram for explaining the structure of a pouch-type battery case accommodating an electrode assembly.
  • the pouch-type battery 100 may include an electrode assembly (not shown) and a battery case 110 that accommodates the electrode assembly.
  • the pouch-type battery 100 may include electrode leads 150 and 160 extending from the electrode assembly.
  • the electrode leads 150 and 160 are electrically connected to an electrode assembly (not shown) and are exposed to the outside of the battery case 110 to serve as electrode terminals that can be electrically connected to another battery or external device.
  • the electrode leads 150 and 160 may include a positive electrode lead 150 and a negative electrode lead 160, respectively.
  • the anode lead 150 and the cathode lead 160 may be made of different materials.
  • the positive electrode lead 150 may be made of the same material as the positive electrode, such as aluminum (Al)
  • the negative lead 160 may be made of the same material as the negative electrode, such as copper (Cu) or copper coated with nickel (Ni). You can.
  • the positive lead 150 and negative lead 160 may have a structure exposed to different sides of the battery case 110, respectively.
  • the positive lead 150 and the negative lead 160 may have a structure exposed side by side on one side of the battery case 110.
  • the electrode assembly may have a laminated (stacked) structure in which an anode and a cathode are alternately stacked with a separator in between.
  • the structure of the electrode assembly is not limited to this, and may have a jelly roll (wound type) structure.
  • the battery case 110 can accommodate an electrode assembly (not shown) and an electrolyte (not shown) in an internal space, and may be manufactured from a flexible material.
  • the battery case 110 may be formed of an outer layer, a metal layer, and an inner layer.
  • the outer layer serves as a base material and a protective layer, and can primarily protect the electrode assembly (not shown) from external impacts.
  • the outer layer may be formed of a polymer material such as nylon or polyethylene terephthalate (PET), but is not limited thereto.
  • PET polyethylene terephthalate
  • the metal layer may serve as a substrate that maintains mechanical strength and a barrier layer that prevents moisture and oxygen from penetrating, and may be formed of a material such as aluminum (Al), but is not limited thereto.
  • the inner layer is also called a heat-sealing layer, and has heat-adhesive properties so it can act as a sealing agent.
  • the inner layer can be formed of a polyolepin-based resin material, and can also act as an adhesive layer using CPP (Casted Polypropylene), a modified polypropylene.
  • the inner layer may be formed of a material selected from the group consisting of polyolefin-based resins such as chlorinated polypropylene, polyethylene, ethylene propylene copolymer, polyethylene and acrylic acid copolymer, and polypropylene and acrylic acid copolymer, but is not limited thereto.
  • the battery case 110 protects internal components such as the electrode assembly (not shown) and electrolyte (not shown), and has a heat dissipation function and complements the electrochemical properties caused by the electrode assembly (not shown) and electrolyte (not shown). can be performed.
  • the battery case 110 may include a storage portion 120, a sealing portion 130, and a folding portion 140.
  • the storage unit 120 can accommodate an electrode assembly (not shown). Sealing on two sides of the battery case 110 as the positive lead 150 and negative lead 160 extending from the electrode assembly (not shown) are exposed from two different corners of the battery case 110.
  • the sealing unit 130 where the process was performed may be located.
  • the sealing portion 130 may serve to seal the inside of the battery case 110 and prevent internal electrolyte from leaking or contact between the internal environment and the external environment.
  • one side of the battery case 110 may include a folding portion 140 that is folded at least once as shown in FIG. 1 .
  • embodiments of the present invention are not limited to the battery case 110 including the folding portion 140.
  • Figure 2 is a diagram for explaining another embodiment of a pouch-type battery case.
  • the pouch-type battery 200 may include an electrode assembly (not shown) and a battery case 210 that accommodates the electrode assembly.
  • the pouch-type battery 200 may include electrode leads 250 and 260 extending from the electrode assembly.
  • the electrode leads 250 and 260 may have the same configuration as the electrode leads 150 and 160 described with reference to FIG. 1 .
  • the battery case 210 may include an electrode assembly storage unit 220, a gas collection unit 230, and a sealing unit 240.
  • the electrode assembly storage unit 220 may have the same configuration as the storage unit 120 described with reference to FIG. 1 .
  • the gas collection unit 230 may be a part that collects gas generated during the initial activation process of the pouch-type battery 200.
  • the gas collection unit 230 may be cut and removed from the pouch-type battery 200 after collecting the gas generated in the activation process. Since the battery case 210 is manufactured to include a gas collection part 230 during initial manufacturing, the battery case 210 of FIG. 2 has a relatively longer sealing part 240 compared to the battery case 110 of FIG. 1. It can be included.
  • the sealing parts 130 and 240 described with reference to FIGS. 1 and 2 may be sealed using a thermocompression method.
  • Figure 3 is a diagram for explaining a pouch-type battery case sealing device according to the prior art.
  • Figure 4 is a side view of the pouch-type battery case sealing device of Figure 3.
  • the pouch-type battery case sealing device 300 may include an upper heat bar 310, an upper sealing bar 320, a lower heat bar 330, and a lower sealing bar 340. there is.
  • the upper heat bar 310 is disposed on the upper sealing bar 320 and is in contact with the upper sealing bar 320.
  • the upper heat bar 310 may be a means of transferring heat energy to the upper sealing bar 320.
  • the lower heat bar 330 is disposed on the lower surface of the lower sealing bar 340 and is in contact with the lower sealing bar 340.
  • the lower heat bar 330 may be a means of transferring heat energy to the lower sealing bar 340.
  • a sealing portion included on at least one corner of the pouch-type battery case may be disposed between the upper sealing bar 320 and the lower sealing bar 340 of the pouch-type battery case sealing device 300. While the lower sealing bar 340 of the pouch-type battery case sealing device 300 is fixed, the upper heat bar 310 and upper sealing bar 320 move in the direction (A-A') of the lower sealing bar 340. The sealing part can be sealed by applying heat and pressure to the sealing part while doing so. At this time, the surface temperature of the upper sealing bar 320 and the lower sealing bar 340 may be increased by the upper heat bar 310 and lower heat bar 330, respectively.
  • the sealing part can be sealed by applying .
  • heat and pressure are applied to the sealing portion of the battery case disposed between the upper sealing bar 320 and the lower sealing bar 340 while the upper sealing bar 320 and the lower sealing bar 340 approach each other.
  • the sealing part can be sealed using this method.
  • the side surfaces are open, so when pressure is applied at once using sealing bars, the sealing portion becomes smooth.
  • the electrode assembly or electrolyte contained inside cannot be sealed, and surface wrinkling may occur. That is, when sealing by applying pressure all at once using the pouch-type battery case sealing device 300, the surface of the sealing portion may become wrinkled and wrinkled (wrinkled or crumpled).
  • the longer the length of the sealing part the more severe the phenomenon of surface wrinkling may become. If the sealing part fails to seal the electrode assembly or electrolyte, a vent may occur or it may be difficult to ensure normal battery operation.
  • Figure 5 is a diagram for explaining a pouch-type battery case sealing device according to an embodiment of the present invention.
  • Figure 6 is a side view of the pouch-type battery case sealing device of Figure 5.
  • the pouch-type battery case sealing device 500 may include an upper heat bar 510, sealing rollers 520 and 530, and a lower heat bar 540.
  • the sealing rollers 520 and 530 may include a sealing wheel 520 and a fastening portion 530.
  • the upper heat bar 510, the sealing rollers 520, 530, and the lower heat bar 540 are shown as spaced apart from each other, but this is for convenience of explanation, and the pouch-type battery case sealing device 500 When sealing the sealing portion of the battery case 550, the upper heat bar 510 and the sealing rollers 520 and 530 may be in contact with the lower heat bar 540, as shown in FIG. 6 .
  • the upper heat bar 510 may be connected to the sealing rollers 520 and 530. Specifically, the upper heat bar 510 may be coupled to the fastening portion 530 of the sealing rollers 520 and 530.
  • the fastening part 530 may be mounted inside the upper heat bar 510 and may have a structure that can be moved from one end of the sealing part to the other end in the direction (B-B'). Accordingly, the sealing wheel 520 coupled with the fastening part 530 moves from one end of the sealing part in the direction (B-B') to the other end with the fastening part 530 mounted inside the upper heat bar 510.
  • the sealing wheel 520 can heat-compress the sealing portion while moving the upper surface of the sealing portion.
  • the upper heat bar 510 transfers heat energy to the fastening part 530 that contacts the upper heat bar 510, and the heat energy transferred to the fastening part 530 is transmitted to the sealing wheel 520. It can be. Through this, the sealing wheel 520 can heat-compress the sealing portion.
  • the sealing rollers 520 and 530 may move while rotating the surface of the sealing portion while the fastening portion 530 coupled to the upper heat bar 510 moves in the B-B' or B'-B direction.
  • the lower heat bar 540 may be disposed below the upper heat bar 510 and the sealing rollers 520 and 530.
  • the lower heat bar 540 may supply heat energy to the lower part of the sealing part.
  • the direction in which the sealing rollers 520 and 530 seal the sealing part of the battery case 550 is not limited to the direction from B to B', as long as it is from one end of the sealing part to the other end. That is, the sealing portion of the battery case 550 may be sealed in the direction from B' to B.
  • the pouch-type battery case sealing device 500 described with reference to FIGS. 5 and 6 By using the pouch-type battery case sealing device 500 described with reference to FIGS. 5 and 6, the phenomenon of the sealing portion crying after sealing can be prevented.
  • Figure 7 is a diagram for explaining a pouch-type battery case sealing device according to another embodiment of the present invention.
  • Figure 8 is a side view of the pouch-type battery case sealing device of Figure 7.
  • the pouch-type battery case sealing device 700 may include a lower heat bar 710, sealing rollers 720 and 730, and an upper heat bar 740.
  • FIGS. 7 and 8 is a pouch-type battery case sealing in which the sealing rollers 720 and 730 thermally compress upward from below the sealing portion of the battery case 750, rather than thermally compressing the sealing portion downward.
  • the lower heat bar 710, the sealing rollers 720, 730, and the upper heat bar 740 are shown to be spaced apart from each other, but this is for convenience of explanation, and the pouch-type battery case sealing device 700 When sealing the sealing portion of the battery case 750, the lower heat bar 710 and the sealing rollers 720 and 730 may be in contact with the upper heat bar 740, as shown in FIG. 8 .
  • the sealing portion of the battery case 750 can be sealed in the same manner as the type battery case sealing device 500. That is, the sealing wheel 720 coupled with the fastening part 730 moves from one end of the sealing part to the other end in the direction (C-C' or C'-C) with the fastening part 730 mounted inside the lower heat bar 710. As it moves, the sealing wheel 720 moves the lower surface of the sealing portion and can heat-compress the sealing portion.
  • Figure 9 is a diagram for explaining a pouch-type battery case sealing device according to another embodiment of the present invention.
  • Figure 10 is a side view of the pouch-type battery case sealing device of Figure 9.
  • the pouch-type battery case sealing device 900 includes an upper heat bar 910, upper sealing rollers 930, 940, lower heat bar 920, and lower sealing rollers 950, 960. may include.
  • the sealing roller does not move in either direction above or below the sealing part of the battery case 970, but the sealing roller moves at the top and bottom of the sealing part to cover the upper and lower surfaces of the sealing part. It shows a pouch-type battery case sealing device 900 that is heat-compressed.
  • the pouch-type battery case sealing device described with reference to FIGS. 5 to 8, except that the sealing roller is coupled to both the upper heat bar 910 and the lower heat bar 920 (
  • the sealing portion of the battery case 970 may be sealed in the same manner as 500 and 700). That is, the upper sealing wheel 930 and the lower sealing wheel 950 coupled with the fastening parts 940 and 960 move from one end of the sealing part to the other end in the direction (D-D' or D'-D), thereby moving the upper and lower surfaces of the sealing part.
  • the sealing part can be heat-compressed while moving simultaneously or sequentially.
  • the upper ceiling wheel 930 and the lower ceiling wheel 950 may move in opposite directions.
  • the upper ceiling wheel 930 and the lower ceiling wheel 950 may move sequentially. That is, the sealing part may be sealed in the order that the upper sealing wheel 930 first moves the upper surface of the sealing part, and then the lower sealing wheel 950 moves the lower surface of the sealing part.
  • FIG. 11 is a diagram for explaining various embodiments of a sealing roller.
  • the sealing roller may be mounted on the pouch-type battery case sealing devices 500, 700, and 900 described through the embodiments of FIGS. 5, 7, and 9. Sealing rollers having various shapes and weights can be selected for optimal sealing effect depending on the material of the sealing part, length, type of material used as an internal sealing agent, etc.
  • the sealing roller may include a sealing wheel and a fastening part having a cylindrical shape that penetrates the sealing wheel.
  • the sealing wheel is a rectangular (or cubic) shaped sealing wheel (a), a square pillar shaped sealing wheel with different widths on the upper and lower surfaces (b), and a cylindrical or elliptical pillar shaped sealing wheel (c).
  • it may have various forms, such as a triangular pillar-shaped ceiling wheel (d).
  • FIG. 11 shows four types of sealing wheels (a) to (d), but in addition, sealing wheels of various shapes are shown in the pouch-type battery case sealing device described through the embodiments of FIGS. 5, 7, and 9. It can be mounted on fields 500, 700, and 900.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

Un dispositif d'étanchéité de boîtier de batterie de type poche selon la présente technologie peut comprendre : une barre chauffante inférieure disposée en dessous d'une partie d'étanchéité comprenant au moins un bord, parmi une pluralité de bords, d'un boîtier de batterie de type poche dans lequel un ensemble électrode est logé ; un rouleau d'étanchéité supérieur pour thermosceller la partie d'étanchéité tout en se déplaçant le long de la surface de la partie d'étanchéité à partir d'une extrémité de la partie d'étanchéité vers l'autre extrémité de la partie d'étanchéité ; et une barre chauffante supérieure qui est couplée au rouleau d'étanchéité et transfère de l'énergie thermique au rouleau d'étanchéité.
PCT/KR2023/005117 2022-05-19 2023-04-14 Dispositif et méthode d'étanchéité de boîtier de batterie de type poche WO2023224270A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0061647 2022-05-19
KR1020220061647A KR20230161817A (ko) 2022-05-19 2022-05-19 파우치형 배터리 케이스 실링 장치 및 방법

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WO2023224270A1 true WO2023224270A1 (fr) 2023-11-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031848A (ja) * 2014-07-29 2016-03-07 株式会社豊田自動織機 蓄電装置
KR20180092174A (ko) * 2017-02-08 2018-08-17 주식회사 엘지화학 이차전지의 파우치 잔존율 확보를 위한 성형 장치 및 방법
KR101958882B1 (ko) * 2018-12-06 2019-03-15 (주)하나기술 각형 배터리 테두리부 폴딩 롤러
KR102230937B1 (ko) * 2020-08-07 2021-03-23 주식회사 와이에이치티 이차전지 셀의 테라스를 폴딩하기 위한 폴딩 설비
KR20210115865A (ko) * 2020-03-16 2021-09-27 주식회사 엘지에너지솔루션 이차전지 실링장치 및 실링방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031848A (ja) * 2014-07-29 2016-03-07 株式会社豊田自動織機 蓄電装置
KR20180092174A (ko) * 2017-02-08 2018-08-17 주식회사 엘지화학 이차전지의 파우치 잔존율 확보를 위한 성형 장치 및 방법
KR101958882B1 (ko) * 2018-12-06 2019-03-15 (주)하나기술 각형 배터리 테두리부 폴딩 롤러
KR20210115865A (ko) * 2020-03-16 2021-09-27 주식회사 엘지에너지솔루션 이차전지 실링장치 및 실링방법
KR102230937B1 (ko) * 2020-08-07 2021-03-23 주식회사 와이에이치티 이차전지 셀의 테라스를 폴딩하기 위한 폴딩 설비

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