WO2020096224A1 - Cartouche de batterie de type sachet et bloc-batterie de type sachet comprenant celle-ci - Google Patents

Cartouche de batterie de type sachet et bloc-batterie de type sachet comprenant celle-ci Download PDF

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Publication number
WO2020096224A1
WO2020096224A1 PCT/KR2019/013815 KR2019013815W WO2020096224A1 WO 2020096224 A1 WO2020096224 A1 WO 2020096224A1 KR 2019013815 W KR2019013815 W KR 2019013815W WO 2020096224 A1 WO2020096224 A1 WO 2020096224A1
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WIPO (PCT)
Prior art keywords
pouch
type battery
metal case
battery
metal
Prior art date
Application number
PCT/KR2019/013815
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English (en)
Korean (ko)
Inventor
황승재
Original Assignee
주식회사 아모그린텍
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Publication of WO2020096224A1 publication Critical patent/WO2020096224A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • 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 cartridge and a pouch type battery pack including the same.
  • the battery is used as an energy source for various products such as electric vehicles, drones, mobile phones, laptops, and digital cameras.
  • a lithium secondary battery capable of driving high energy density and high power is used.
  • Lithium secondary batteries can be manufactured in the form of a thin pouch, and by connecting a plurality of pouch-shaped batteries, there is an advantage of realizing a high-capacity battery even in a small area.
  • These pouch-type batteries are generally made of aluminum and a polymer resin, so that the electrode assembly is packaged inside a sheet-formed exterior material, so mechanical rigidity is not large. Accordingly, in order to configure a battery module including a plurality of pouch-type batteries, a cartridge is used to easily stack a plurality of pouch-type batteries while protecting the battery from external impact.
  • the capacity increases, but the heat generation temperature of the battery may also increase. If the heat generation temperature of the battery becomes higher than the proper temperature, the battery may not only degrade performance, but also have a risk of explosion or ignition.
  • the present invention has been made in view of the above points, and an object thereof is to provide a battery cartridge and a pouch type battery pack including the same, which can efficiently discharge heat generated from the battery during charging and discharging of the battery.
  • the present invention is a metal case for accommodating a pouch-type battery therein; And a plate-shaped heat transfer sheet disposed between one surface of the pouch-type battery facing each other and one surface of the metal case, and transferring heat generated from the pouch-type battery to the metal case. .
  • the heat transfer sheet may be made of a material having a relatively higher thermal conductivity than the metal case.
  • the heat transfer sheet may be a graphite sheet with an insulated surface.
  • the heat transfer sheet may include an insulating film member attached to the graphite sheet via a plate-shaped graphite sheet and an adhesive layer to cover the surface of the graphite sheet.
  • the metal case may be made of a material containing aluminum.
  • the metal case may include a coating layer having insulation and heat dissipation properties formed to a predetermined thickness on the surface.
  • the metal case may include a first metal case covering the top surface of the pouch-type battery and a second metal case covering the bottom surface of the pouch-type battery, wherein the first metal case and the second metal case are plate-shaped. It may be a metal plate or may be formed in a closed-loop shape.
  • the metal case may include at least one fastening portion provided on the rim side for fastening with other parts.
  • the present invention is a plurality of pouch-type battery cartridge described above; A pouch-type battery housed in each of the plurality of battery cartridges; It provides a pouch-type battery pack comprising; and a fastening means for maintaining the stacked state of the plurality of battery cartridges along one direction.
  • FIG. 1 is a view showing a pouch-type battery cartridge according to an embodiment of the present invention
  • Figure 2 is an exploded view of Figure 1
  • FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2,
  • FIG. 4 is a cross-sectional view taken along line B-B in FIG. 2,
  • FIG. 5 is a view showing a pouch type battery pack to which a pouch type battery cartridge according to an embodiment of the present invention is applied,
  • Figure 6 is an exploded view of Figure 5
  • FIG. 7 is a view showing a pouch-type battery cartridge according to another embodiment of the present invention.
  • FIG. 8 is an exploded view of FIG. 7, and
  • FIG. 9 is a view showing a pouch type battery pack to which a pouch type battery cartridge according to another embodiment of the present invention is applied.
  • the pouch type battery cartridges 100 and 200 include a metal case 110 and 210 and a heat transfer sheet 120 as shown in FIGS. 1 and 7.
  • the metal cases 110 and 210 may accommodate the pouch-shaped battery 10 therein. Through this, the metal case 110 and 210 can protect the pouch-shaped battery 10 from external force.
  • the metal cases 110 and 210 may discharge heat generated from the pouch type battery 10 to the outside.
  • the metal cases 110 and 210 may be made of a metal material having excellent thermal conductivity to protect the pouch-type battery 10 against external force while rapidly dissipating heat transferred from the pouch-type battery 10. .
  • the metal case (110,210) may be made of a metal material including aluminum having excellent thermal conductivity while reducing weight, but the material of the metal case (110,210) is not limited thereto. All metal materials can be used.
  • the pouch-type battery 10 may include an electrode assembly in which at least one positive electrode and a negative electrode are stacked with a separator interposed therebetween, and a pouch-shaped exterior material, and the electrode assembly may include an electrolyte solution inside the pouch. It may be a battery sealed together.
  • the pouch-shaped battery 10 may be provided so that a pair of electrode terminals 12a and 12b connected to the electrode assembly protrude to the outside.
  • the pouch-type battery 10 may be a flexible battery.
  • the pouch-type battery cartridge 100,200 according to an embodiment of the present invention, even if the pouch-type battery 10 that can be easily deformed by external force is accommodated inside the metal case 110,210, the pouch-type battery 10 may be protected from external force while maintaining the shape through the metal cases 110 and 210 made of a metal material having a predetermined strength.
  • the metal case (110,210) may include a first metal case (111,211) and a second metal case (112,212), the pouch-shaped battery (10) of the first metal case (111,211) facing each other It may be disposed between one surface and one surface of the second metal case (112,212).
  • the first metal case (111,211) and the second metal case (112,212) may be a plate-shaped metal plate.
  • the first metal case (111,211) and the second metal case (112,212) may be formed with a receiving groove (113) for accommodating a portion of the total thickness of the pouch-shaped battery (10), respectively.
  • the grooves 113 may be formed on one surface of the first metal cases 111 and 211 facing each other and on one surface of the second metal cases 112 and 212, respectively.
  • the first metal case (111,211) may cover the upper surface of the pouch-shaped battery 10 while accommodating a portion of the thickness of the pouch-shaped battery 10 through the receiving groove 113
  • the second metal Cases 112 and 212 may cover the lower surface of the pouch type battery 10 while accommodating a portion of the thickness of the pouch type battery 10 through the accommodation groove 113 as in the first metal cases 111 and 211.
  • the top surface of the pouch-shaped battery 10 may be in close contact with the inner surface of the first metal case (111,211), the bottom surface of the pouch-type battery 10 is in close contact with the inner surface of the second metal case (112,212) Can be.
  • the heat generated from the pouch-type battery 10 can be quickly dissipated through the outside air after being transferred to the first metal case 111,211 and the second metal case 112,212.
  • the first metal case 111 and the second metal case 112 support the rim of the pouch type battery 10 accommodated therein as shown in FIGS. 1 and 2, and the outside air is the pouch type battery (10) may include an opening 114 formed through a predetermined area to be directly introduced to the side. That is, the first metal case 111 and the second metal case 112 may be formed in a closed-loop shape.
  • heat generated from the pouch-type battery 10 may be discharged to the outside using two paths. That is, the heat generated from the pouch type battery 10 is transferred to the first metal case 111 and the second metal case 112, and then the first metal case 111 and the second metal case 112 are transferred. It may be discharged using a first path that is discharged through the outside air that is in contact with, and a second path that is discharged through the outside air that is directly introduced into the pouch-shaped battery 10 through the opening 114.
  • the first metal case 211 and the second metal case 212 are the pouch type battery so that the pouch type battery 10 accommodated therein is not exposed to the outside as shown in FIGS. 7 and 8. It may be in the form of completely enclosing (10).
  • the heat generated from the pouch type battery 10 is transferred to the first metal case 211 and the second metal case 212, and then the first metal case 211 and the second metal case ( 212).
  • the metal cases 110 and 210 may include a coating layer 140 formed on the surface.
  • the coating layer 140 may be applied to cover all surfaces of the metal case 110 as shown in FIG. 3.
  • the metal case 210 shown in FIGS. 7 and 8 may also be applied with the coating layer 140.
  • the coating layer 140 may improve the surface insulation of the metal case 110. Accordingly, even if the metal case 110 is made of a metal material having electrical conductivity and the pouch type battery 10 is accommodated in the inside of the metal case 110 so as to be in close contact with one surface of the metal case 110, the The metal case 110 and the pouch-type battery 10 can prevent electrical shorts from occurring through the coating layer 140.
  • the coating layer 140 may be implemented with a known thermosetting polymer compound or a thermoplastic polymer compound.
  • the thermosetting polymer compound may be one compound selected from the group consisting of epoxy, urethane, ester and polyimide resins, or a mixture or copolymer of two or more.
  • thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polyphenylene oxide (PPO), polyether sulfone (PES) ), Polyetherimide (PEI) and one compound selected from the group consisting of polyimide, or a mixture or copolymer of two or more, but is not limited thereto.
  • the coating layer 140 may be applied to the surfaces of the metal cases 110 and 210 to prevent heat transferred to the metal cases 110 and 210 from being discharged to the outside.
  • the coating layer 140 applied to the present invention may further include an insulating heat dissipation filler to improve heat radiation characteristics to the outside.
  • the insulating heat dissipation filler may be used without limitation in the case of a known insulating heat dissipation filler.
  • the coating layer 140 may have a form in which an insulating heat dissipating filler is dispersed in a polymer matrix so as to have heat dissipation properties and insulating properties at the same time.
  • the polymer matrix may be a known thermoplastic polymer compound
  • the thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK) ), Polyphenylene oxide (PPO), polyethersulfone (PES), polyetherimide (PEI), and polyimide.
  • the insulating heat dissipation filler can be used without limitation, as long as it has both insulating and heat dissipation properties.
  • the insulating heat dissipation filler is selected from the group consisting of magnesium oxide, titanium dioxide, aluminum nitride, silicon nitride, boron nitride, aluminum oxide, silica, zinc oxide, barium titanate, strontium titanate, beryllium oxide, silicon carbide, and manganese oxide. It may contain one or more.
  • the insulating heat dissipation filler may be porous or non-porous, and may be a core shell type filler having a known conductive heat dissipation filler such as carbon-based or metal as the core and an insulating component surrounding the core.
  • the insulating heat dissipating filler may have a surface modified with functional groups such as a silane group, an amino group, an amine group, a hydroxy group, and a carboxyl group to improve wettability and the like, thereby improving interfacial bonding strength with the polymer matrix.
  • functional groups such as a silane group, an amino group, an amine group, a hydroxy group, and a carboxyl group to improve wettability and the like, thereby improving interfacial bonding strength with the polymer matrix.
  • the coating layer 140 having insulation and heat dissipation which can be used in the present invention is not limited thereto, and any material having both insulation and heat dissipation can be used without limitation.
  • the metal case (110,210) may include at least one fastening portion 130 provided on the rim side for fastening with other parts.
  • the fastening portion 130 may be a fastening hole formed through the rim side of the first metal case (111,211) and the second metal case (112,212). Accordingly, as shown in FIGS. 5 and 9, when pouch-type battery cartridges 100 and 200 according to an embodiment of the present invention are stacked in multiple stages to form battery packs 1000 and 2000, each pouch-type battery The cartridges 100 and 200 can be easily fixed to each other through a fastening member inserted into the fastening part 130 side.
  • the fastening part 130 is illustrated as being formed through the rim side of the first metal case 111 and 211 and the second metal case 112 and 212, the fastening part 130 is not limited thereto.
  • the fastening portion 130 may be formed on the flange side protruding from the rim of the first metal case 111,211 and the second metal case 112,212.
  • the heat transfer sheet 120 may be disposed between one surface of the pouch type battery 10 facing each other and one surface of the metal cases 110 and 210. In this case, the heat transfer sheet 120 may be interviewed with one surface of the pouch type battery 10 and the metal cases 110 and 210, both of which face each other.
  • the heat transfer sheet 120 may quickly dissipate heat generated from the pouch-type battery 10 and transfer it to the metal cases 110 and 210. Accordingly, the heat generated from the pouch-type battery 10 can be quickly dissipated through the heat transfer sheet 120 and then quickly transferred to the metal case 110 and 210 in contact with the outside air, and then quickly discharged through the outside air. have.
  • the heat transfer sheet 120 may be a sheet-like sheet, and may be made of a material having a relatively higher thermal conductivity than the metal cases 110 and 210.
  • the heat transfer sheet 120 is disposed between the first metal case (111,211) and the top surface of the pouch-type battery 10, and between the bottom surface of the pouch-type battery 10 and the second metal case (112,212), respectively.
  • one surface of the heat transfer sheet 120 may be attached to one surface of the first metal case 111,211 or the second metal case 112,212 through an adhesive layer (not shown).
  • heat generated from the pouch-type battery 10 can be quickly transferred to the first metal case 111,211 and the second metal case 112,212 through two heat transfer sheets 120, thereby contacting the outside air. It can be quickly discharged through the first metal case (111,211) and the second metal case (112,212). Through this, the pouch-type battery 10 can be prevented from deteriorating performance as a battery due to heat or minimizing the performance degradation as a battery due to heat.
  • the heat transfer sheet 120 may be a plate-shaped graphite sheet 121, and the graphite sheet 121 may have an insulated surface. This is because when the graphite sheet 121 is in direct contact with the pouch-shaped battery 10 and the metal case (110 210) as well as having a high thermal conductivity as well as excellent electrical conductivity, the graphite sheet 121 And an electric short may occur between the pouch type battery 10.
  • the heat transfer sheet 120 when the heat transfer sheet 120 is provided as a plate-shaped graphite sheet 121, the graphite sheet 121 may have an insulating surface. Through this, the heat transfer sheet 120 may have high thermal conductivity for heat dissipation, but the possibility of electrical short due to electrical conductivity may be blocked.
  • the heat transfer sheet 120 is attached to the graphite sheet 121 via a plate-shaped graphite sheet 121 and an adhesive layer 122, the surface of the graphite sheet 121 It may include an insulating film member 123 covering the.
  • the insulating film member 123 includes a first insulating film member 123a covering the top surface of the graphite sheet 121 and a second insulating film member 123b covering the bottom surface of the graphite sheet 121
  • the insulating film member 123 may be configured as one member.
  • the heat transfer sheet 120 may have high thermal conductivity through the graphite sheet 121 and insulation through the insulating film member 123.
  • the adhesive layer 122 may include a non-conductive component to further improve insulation.
  • the heat transfer sheet 120 is illustrated as having a closed loop shape through which an area corresponding to the opening 114 of the metal case 110 is penetrated, similarly to the metal case 110 shown in FIGS. 1 and 2. It is not limited, and the heat transfer sheet 120 may be in the form of a sheet having an enclosed plate.
  • heat transfer sheet 120 shown in FIGS. 7 and 8 may also be configured in the form shown in FIG. 4.
  • the pouch-type battery cartridges 100 and 200 are batteries by fastening a plurality of pouch-type battery cartridges 100 and 200 to each other while the pouch-type battery 10 is accommodated in the metal case 110 and 210 Packs 1000 and 2000 can be configured.
  • the pouch-type battery pack (1000,2000) according to an embodiment of the present invention, as shown in Figures 5 and 9, a plurality of pouch-type battery cartridges (100,200) may be stacked in multiple stages, multiple stages The plurality of pouch-type battery cartridges 100 and 200 stacked may be fixed to each other through the fastening means 300.
  • the plurality of pouch-type battery cartridges 100 and 200 may have pouch-type batteries 10 therein, and each pouch-type battery 10 has a pair of electrode terminals 12a and 12b in a metal case ( 110,210), respectively.
  • the pouch-type battery pack (1000,2000) is a plurality of pouch-type battery cartridges (100,200), each of the pouch-shaped battery (10) is provided with a pair of electrode terminals (12a, 12b) protruding to the outside respectively It can be electrically connected to each other. Due to this, the total capacity of the pouch type battery packs 1000 and 2000 may be increased.
  • the fastening means 300 may be a frame structure surrounding the pouch-type battery cartridges 100 and 200 stacked in multiple stages as shown in FIGS. 5, 6 and 9.
  • the fastening means 300 has a predetermined length and a pair of lower frames 310 disposed under the pouch type battery cartridges 100 and 200 disposed at the bottom and a predetermined length and disposed at the top Includes a pair of upper frames 320 and a pair of upper frames 320 and at least one pillar frame 330 and 340 that respectively connect the pair of upper frames 320 and lower frames 310 disposed on top of the pouch type battery cartridges 100 and 200
  • the fastening rod 350 having a predetermined length may pass through the fastening unit 130 formed in the plurality of pouch type battery cartridges 100 and 200.
  • the plurality of pouch-type battery cartridges 100 and 200 stacked in multiple stages may be fixed through the fastening means 300.
  • the two pouch-type battery cartridges 100 and 200 may be spaced apart from each other through a spacer 360 fastened to the fastening rod 350.
  • the pillar frames 330 and 340 may have a bar shape or a plate shape having a predetermined length.
  • a plurality of through holes may be formed to allow air to pass therethrough.
  • the upper frame 320 and the lower frame 310 may also be provided in the form of a plate.
  • the fastening means 300 is not limited thereto, and may be variously modified as long as it can fix a plurality of pouch-type battery cartridges 100 and 200 stacked in multiple stages.
  • the fastening means 300 may be in the shape of a housing.
  • the pouch-type battery packs 1000 and 2000 according to the exemplary embodiment of the present invention described above may be used as energy sources for various products such as electric vehicles, drones, portable telephones, notebooks, and digital cameras.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne une cartouche de batterie de type sachet. Une cartouche de batterie de type sachet selon un mode de réalisation donné à titre d'exemple de la présente invention comprend : un boîtier métallique dans lequel une batterie de type sachet est reçue; et une feuille de transfert de chaleur en forme de plaque qui est disposée entre une surface de la batterie de type sachet et une surface du boîtier métallique se faisant face, et transfère la chaleur générée dans la batterie de type sachet vers le boîtier métallique.
PCT/KR2019/013815 2018-11-06 2019-10-21 Cartouche de batterie de type sachet et bloc-batterie de type sachet comprenant celle-ci WO2020096224A1 (fr)

Applications Claiming Priority (2)

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KR10-2018-0135195 2018-11-06
KR1020180135195A KR20200052070A (ko) 2018-11-06 2018-11-06 파우치형 배터리 카트리지 및 이를 포함하는 파우치형 배터리 팩

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WO2020096224A1 true WO2020096224A1 (fr) 2020-05-14

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EP4258437A4 (fr) * 2022-02-21 2024-07-24 Contemporary Amperex Technology Co Ltd Batterie, dispositif électrique, et procédé et dispositif de préparation de batterie

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KR101150247B1 (ko) * 2009-04-01 2012-06-12 주식회사 엘지화학 모듈의 구조 설계에 유연성을 가진 전지모듈 및 이를 포함하는 중대형 전지팩
KR101271567B1 (ko) * 2010-08-16 2013-06-11 주식회사 엘지화학 고정부재가 플레이트들의 관통구에 삽입되어 있는 구조의 전지모듈 및 이를 포함하는 전지팩
CN206619618U (zh) * 2017-03-27 2017-11-07 江西迪芯能源科技有限公司 一种锂电池外壳密封装置
EP3373374A1 (fr) * 2016-09-28 2018-09-12 LG Chem, Ltd. Procédé pour sceller un boîtier de poche de batterie secondaire

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KR20090107443A (ko) 2008-04-08 2009-10-13 쏘씨에떼 드 베이뀔르 엘렉트리끄 가요성의 발전 소자와 상기 발전 소자들의 기계적, 열적 조절 시스템을 포함하는 전기 배터리

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Publication number Priority date Publication date Assignee Title
US20020021997A1 (en) * 2000-06-23 2002-02-21 Akira Taomoto Graphite sheet coated with insulating material and coating method thereof
KR101150247B1 (ko) * 2009-04-01 2012-06-12 주식회사 엘지화학 모듈의 구조 설계에 유연성을 가진 전지모듈 및 이를 포함하는 중대형 전지팩
KR101271567B1 (ko) * 2010-08-16 2013-06-11 주식회사 엘지화학 고정부재가 플레이트들의 관통구에 삽입되어 있는 구조의 전지모듈 및 이를 포함하는 전지팩
EP3373374A1 (fr) * 2016-09-28 2018-09-12 LG Chem, Ltd. Procédé pour sceller un boîtier de poche de batterie secondaire
CN206619618U (zh) * 2017-03-27 2017-11-07 江西迪芯能源科技有限公司 一种锂电池外壳密封装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4258437A4 (fr) * 2022-02-21 2024-07-24 Contemporary Amperex Technology Co Ltd Batterie, dispositif électrique, et procédé et dispositif de préparation de batterie

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