WO2024043540A1 - 전지 모듈 및 이를 포함하는 전지팩 - Google Patents
전지 모듈 및 이를 포함하는 전지팩 Download PDFInfo
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- WO2024043540A1 WO2024043540A1 PCT/KR2023/010386 KR2023010386W WO2024043540A1 WO 2024043540 A1 WO2024043540 A1 WO 2024043540A1 KR 2023010386 W KR2023010386 W KR 2023010386W WO 2024043540 A1 WO2024043540 A1 WO 2024043540A1
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- Prior art keywords
- battery
- manifold
- battery cell
- battery module
- paragraph
- Prior art date
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- 238000001816 cooling Methods 0.000 claims abstract description 111
- 239000003507 refrigerant Substances 0.000 claims abstract description 46
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Images
Classifications
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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
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- 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
- H01M10/6553—Terminals or leads
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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
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
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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
- H01M50/233—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
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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
- H01M50/233—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
- H01M50/242—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 against vibrations, collision impact or swelling
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- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/595—Tapes
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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 module and a battery pack including the same, and more specifically, to a battery module with improved cooling performance by enabling direct cooling and a battery pack including the same.
- secondary batteries that can be charged and discharged are a way to solve air pollution from existing gasoline vehicles that use fossil fuels, and are used in electric vehicles (EV), hybrid electric vehicles (HEV), and plug-in hybrid electric vehicles ( As it is used as a power source for batteries such as P-HEV), the need for development of secondary batteries is increasing.
- EV electric vehicles
- HEV hybrid electric vehicles
- P-HEV plug-in hybrid electric vehicles
- lithium secondary batteries can be classified into can-type secondary batteries in which the electrode assembly is built into a metal can and pouch-type secondary batteries in which the electrode assembly is built in a pouch of an aluminum laminate sheet, depending on the shape of the exterior material.
- a battery module is made by electrically connecting multiple battery cells. This is used.
- These battery modules have improved capacity and output by connecting multiple battery cells in series or parallel to each other to form a battery cell stack.
- one or more battery modules may be mounted together with various control and protection systems such as a battery disconnect unit (BDU), battery management system (BMS), and cooling system to form a battery pack.
- BDU battery disconnect unit
- BMS battery management system
- cooling system to form a battery pack.
- the temperature of a secondary battery rises higher than the appropriate temperature, the performance of the secondary battery may deteriorate, and in severe cases, there is a risk of explosion or ignition.
- the temperature of a battery module or battery pack having multiple secondary batteries that is, battery cells
- the temperature of a battery module or battery pack having multiple secondary batteries can increase rapidly and severely due to the addition of heat from the multiple battery cells in a small space.
- high output can be obtained, but it is not easy to remove heat generated from the battery cells during charging and discharging. If the heat dissipation of the battery cell is not performed properly, the battery cell deteriorates faster, its lifespan is shortened, and the possibility of explosion or ignition increases.
- Cooling methods for battery modules or battery packs can be broadly divided into water-cooling methods using refrigerants such as coolant and air-cooling methods using cooling wind. Among them, water cooling has excellent cooling performance and can effectively cool the high heat generated from large-capacity battery modules or battery packs.
- Figure 1 is a perspective view of a conventional battery module
- Figure 2 is a cross-sectional view taken along the cutting line A-A' of Figure 1.
- a heat sink 30 disposed below the battery module 10 is additionally shown for convenience of explanation.
- a conventional battery module 10 includes a battery cell stack 12 in which a plurality of battery cells 11 are stacked and a module frame 20 that accommodates the battery cell stack 12. Includes.
- the battery cell 11 is a pouch-shaped battery cell, and the pouch-shaped battery cell has a rectangular sheet structure.
- the battery module 10 Because multiple battery cells 11 are stacked, the battery module 10 generates a large amount of heat during charging and discharging.
- the battery module 10 including a pouch-type battery cell was cooled by indirectly or directly contacting the edge of the battery cell 11 to a heat sink 60 having a fixed position and size.
- the battery module 10 may include a thermal resin layer 40 located between the battery cell stack 12 and the bottom of the module frame 20. Additionally, when the battery module 10 is mounted on the pack frame to form a battery pack, the heat transfer member 50 and the heat sink 30 may be positioned sequentially under the battery module 10.
- the heat transfer member 50 may be a heat dissipation pad, and the heat sink 30 may have a cooling passage 31 formed therein through which a refrigerant such as coolant flows.
- the edges of the battery cells 11 stacked in one direction are in contact with the thermal resin layer 40, and the heat generated from the battery cells 11 is directed to the thermal resin layer 40, the bottom of the module frame 20, It may be discharged to the outside of the battery module 10 through the heat transfer member 50 and the heat sink 30 in that order. That is, a water-cooled structure that discharges heat through the edge portion of the battery cell 11 was applied to the conventional battery module 10.
- the water-cooled structure utilizing the edge portion of the battery cell 11 has a relatively simple structure, but has poor cooling performance.
- the battery cells 110 undergo a phenomenon in which the internal electrolyte decomposes and gas is generated during repeated charging and discharging or during the initial charging process, causing the battery cells 110 to swell, that is, swelling. Breathing may occur.
- the thermal resin layer 40 generally has adhesive properties and the battery cells 11 are fixed thereto, so swelling of the battery cells 11 in the direction parallel to the y-axis When this occurs, high stress occurs at the edge of the battery cell 11, which may lead to cracks in the pouch case of the battery cell 11.
- the battery cells 11 located on the outer side of the battery cell stack 12 are subject to greater stress due to swelling, thereby increasing the risk of cracks occurring.
- pure Si cells, all-solid-state batteries, and SiO high-content cells can be applied as pouch battery cells to implement high-capacity battery modules and battery packs.
- the degree of swelling is greater.
- the problem to be solved by the present invention is to provide a battery module capable of directly cooling each of the bus bars connecting the battery cell and the electrode lead of the battery cell, and a battery pack including the same.
- a battery module includes a plurality of battery cell groups including at least one battery cell and stacked along one direction; and a heat sink that cools the battery cell groups.
- the battery cell includes electrode leads that protrude in a direction perpendicular to the direction in which the battery cell groups are stacked.
- the heat sink is located in a direction in which the electrode leads protrude relative to the cooling tubes interposed between the battery cell groups and the battery cell, runs along the direction in which the battery cell groups are stacked, and connects the cooling tubes.
- the battery module may further include a bus bar connected to the electrode lead, and an insulating member may be positioned between the bus bar and the manifold. One surface of the insulating member may contact the bus bar, and the other surface of the insulating member may contact the manifold.
- the battery module may further include an insulating frame located in a direction in which the electrode lead protrudes relative to the battery cell, and the bus bar may be mounted on the insulating frame.
- the bus bar may be mounted on a side of the insulating frame opposite to the side facing the battery cell groups, and the electrode lead may be bent after passing through a lead slit formed in the insulating frame and connected to the bus bar. .
- An opening hole may be formed in the insulating frame, and the bus bar may be exposed toward the manifold through the opening hole.
- the bus bar may extend beyond one side of the insulating frame and be exposed toward the manifold.
- the insulating member may be an insulating tape having electrical insulation and adhesive properties.
- the battery module may further include a bus bar connected to the electrode lead, and the bus bar and the manifold may be in direct contact.
- the cooling tube may be in the form of a rectangular sheet, and the cooling tube may cover the entire surface of the battery cell group and contact the surface of the battery cell group.
- the manifold may have a cylindrical shape.
- the battery cell group may have at least one battery cell wrapped in a wrapping member.
- the wrapping member may have electrical insulation properties.
- the battery cell group may have two or more battery cells wrapped in a wrapping member, and a compression pad may be interposed between at least one of the two or more battery cells.
- the manifold may include a first manifold located on one side of the cooling tubes and a second manifold located on the other side of the cooling tubes.
- a circulation structure of the refrigerant may be formed in the first manifold, the cooling tubes, and the second manifold.
- An inlet through which the refrigerant flows may be connected to a first part of the first manifold, and an outlet through which the refrigerant is discharged may be connected to a second part of the first manifold, and the first part and the second The parts may be separated by separate members.
- the refrigerant may sequentially flow inside each of the first part, the cooling tubes connected to the first part, the second manifold, the cooling tubes connected to the second part, and the second part.
- An inlet through which the refrigerant flows may be connected to the first manifold, and an outlet through which the refrigerant flows may be connected to the second manifold.
- the refrigerant may sequentially flow inside each of the first manifold, the cooling tubes, and the second manifold.
- a battery pack includes the battery module; a pack frame in which the battery module is stored; and vertical beams disposed on the bottom of the pack frame so as to be perpendicular to one surface of the bottom of the pack frame.
- the battery module is disposed between the vertical beams.
- An adhesive member may be positioned between the battery module and the bottom of the pack frame.
- It may further include an upper bracket located at the top of the battery module, extending along the direction in which the battery cell groups are stacked, and fastened to the vertical beam.
- the battery module may further include a module frame that accommodates the battery cell groups and the heat sink.
- a protruding module mounting portion may be formed on the module frame, and the module mounting portion may be fastened to the vertical beam.
- the battery module has increased cooling performance because the heat sink includes a cooling tube located between battery cells, enabling surface cooling of the battery cells rather than the existing edge cooling structure. .
- the electrode lead part of the battery cell is a part of the battery cell that generates a lot of heat.
- the bus bar connecting the electrode lead of the battery cell to contact the heat sink through an insulating member By configuring the bus bar connecting the electrode lead of the battery cell to contact the heat sink through an insulating member, the cooling performance of the battery module can be further improved. .
- Figure 1 is a perspective view of a conventional battery module.
- Figure 2 is a cross-sectional view showing a cross-section taken along the cutting line A-A' in Figure 1.
- Figure 3 is a perspective view showing a battery module according to an embodiment of the present invention.
- Figure 4 is an exploded perspective view showing the bus bar assembly separated from the battery module of Figure 3.
- FIG. 5 is a perspective view showing only the battery cell group and heat sink with the bus bar assembly removed from the battery module of Figure 3.
- Figure 6 is a perspective view showing a battery cell group included in the battery module of Figure 3.
- FIG. 7 is a perspective view showing only the battery cells and compression pads with the wrapping member removed from the battery cell group of FIG. 6.
- Figure 8 is a plan view showing one of the battery cells shown in Figure 7.
- FIG 9 is a perspective view showing a heat sink included in the battery module of Figures 3 and 4.
- FIG. 10 is a plan view showing the heat sink of FIG. 9 as seen along the -z axis direction on the xy plane.
- Figure 11 is a partial cross-sectional view showing a portion of a cross-section taken along the cutting line B-B' of Figure 3.
- Figure 12 is a perspective view showing an insulating frame included in the battery module of Figure 3.
- Figure 13 is a partial cross-sectional view showing a portion of a cross-section taken along the cutting line C-C' of Figure 3.
- Figure 14 is a perspective view showing an insulating frame and bus bar according to another embodiment of the present invention.
- Figure 15 is a plan view showing a heat sink according to another embodiment of the present invention as seen along the -z axis direction on the xy plane.
- Figures 16 and 17 are a front view and a top view, respectively, of a battery pack according to an embodiment of the present invention.
- Figure 18 is a perspective view showing a battery pack according to another embodiment of the present invention.
- FIG. 3 is a perspective view showing the battery module 100 according to an embodiment of the present invention.
- FIG. 4 is an exploded perspective view showing the bus bar assembly 400 separated from the battery module 100 of FIG. 3.
- FIG. 5 is a perspective view showing only the battery cell group 200 and the heat sink 300 with the bus bar assembly 400 removed from the battery module 100 of FIG. 3.
- a battery module 100 includes a plurality of battery cell groups 200 stacked along one direction; and a heat sink 300 that cools these battery cell groups 200.
- the battery cell group 200 includes at least one battery cell, and the battery cell includes electrode leads 111 and 112 protruding in a direction perpendicular to the direction in which the battery cell groups 200 are stacked. 3 to 5, battery cell groups 200 are stacked along a direction parallel to the y-axis, and the electrode leads 111 and 112 of the battery cells protrude in both the x-axis direction and the -x-axis direction, respectively. This is shown.
- the battery cell group 200 will be described in more detail below with reference to FIGS. 6 to 8.
- the heat sink 300 includes cooling tubes 310 and a manifold 320 interposed between the battery cell groups 200.
- the manifold 320 is located in the direction in which the electrode leads 111 and 112 protrude relative to the battery cells, runs along the direction in which the battery cell groups 200 are stacked, and connects the cooling tubes 310.
- a flow path is formed inside the cooling tube 310 and the manifold 320, so that the refrigerant flows along the inside of the cooling tube 310 and the manifold 320.
- the refrigerant may be, for example, coolant.
- the battery module 100 according to this embodiment may have a water-cooled cooling structure.
- the cooling tube 310 interposed between the battery cell groups 200 contacts one surface of the battery cell group 200.
- the cooling tube 310 may be in the form of a rectangular sheet, and the cooling tube 310 may cover the entire surface of the battery cell group 200 and may contact the surface of the battery cell group 200. That is, the battery module 100 according to this embodiment, unlike the conventional battery module 10 of the edge cooling structure described in FIGS. 1 and 2, has a cooling tube 310 through which the refrigerant flows inside the battery cell group 200. ) has a surface cooling structure that directly contacts one surface. In the case of a surface cooling structure, cooling performance is greatly increased because the surface on which cooling occurs is relatively much wider.
- the battery cells are not adhered and fixed to the thermal resin layer 40, so even if swelling occurs in the battery cells, high stress is generated at the edges of the battery cells. does not occur In other words, cracks in the pouch case of the battery cell can be prevented, thereby improving the structural safety of the battery module 100.
- FIG. 6 is a perspective view showing a battery cell group 200 included in the battery module 100 of FIG. 3.
- FIG. 7 is a perspective view showing only the battery cells 110 and the compression pad 220 after removing the wrapping member 210 from the battery cell group 200 of FIG. 6.
- FIG. 8 is a plan view showing one of the battery cells 110 shown in FIG. 7.
- the battery cell group 200 includes at least one battery cell 110. That is, one battery cell 110 can form one battery cell group 200, and a plurality of battery cells 110 can form one battery cell group 200.
- 6 and 7 show, for example, two battery cells 110 gathered together to form one battery cell group 200.
- the battery cell group 200 in the present invention may be a unit that distinguishes a collection of battery cells 110 disposed between cooling tubes 310. At least one battery cell 110 forms a battery cell group 200, and these battery cell groups 200 are stacked along one direction to form a battery cell stack.
- the battery cell 110 may be a pouch-type battery cell.
- a pouch-type battery cell can be formed by storing an electrode assembly in a pouch case, which is a laminated sheet containing a resin layer and a metal layer, and then bonding the outer periphery of the pouch case.
- the battery cell 110 may have a rectangular sheet shape.
- the battery cell 110 according to this embodiment has two electrode leads 111 and 112 facing each other and protruding from one end 114a and the other end 114b of the battery body 113, respectively. It has a structure.
- the battery cell 110 is manufactured by storing the electrode assembly (not shown) in the battery case 114 and adhering both ends 114a and 114b of the battery case 114 and one side 114c connecting them. It can be.
- the battery cell 110 according to an embodiment of the present invention has a total of three sealing parts, and the sealing parts are structured to be sealed by a method such as fusion, and the other side 114d is the battery case 114. may be composed of a folded portion.
- These battery cells 110 form a battery cell group 200, and the battery cell groups 200 are stacked in one direction while standing upright to form a battery cell stack.
- the direction in which the battery cells 110 are stacked is perpendicular to one surface of the battery body 113, and in this specification, corresponds to a direction parallel to the y-axis direction. Accordingly, the directions in which the electrode leads 111 and 112 protrude from the battery cells 110 correspond to the x-axis direction and -x-axis direction, which are directions perpendicular to the direction in which the battery cell groups 200 are stacked.
- the manifold 320 of the heat sink 300 is positioned in the x-axis direction and -x-axis direction, which are directions in which the electrode leads 111 and 112 protrude, respectively, with respect to the battery cell 110 They can be positioned one by one.
- the battery cell group 200 may have at least one battery cell 110 wrapped in a wrapping member 210.
- Figure 7 shows two battery cells 110 included in the battery cell group 200, and these battery cells 110 are wrapped together with a wrapping member 210 to form a battery as shown in Figure 6.
- a cell group 200 may be formed.
- the wrapping member 210 may have electrical insulation properties.
- the wrapping member 210 may be an insulating tape with electrical insulation properties.
- two or more battery cells 110 within the battery cell group 200 may be wrapped in a wrapping member 210, and a compression pad 220 is provided at least one of the two or more battery cells 110. may be involved.
- the compression pad 220 is compressed and can absorb the expansion of the battery cell 110.
- the material of the compression pad 220 may include polyurethane (PU) material.
- the battery cell group 200 corresponds to a unit that distinguishes a collection of battery cells 110 disposed between the cooling tubes 310 of the heat sink 300. .
- the battery cells 110 are wrapped around the wrapping member 210 to form the battery cell group 200, making assembly into a battery module easier. and structural stability increases after assembly.
- the wrapping member 210 has electrical insulation properties, it can prevent the battery cells 110 from being short-circuited by contact with leaked refrigerant.
- adhesive may be applied to some areas of the outer portion of the wrapping member 210 corresponding to one side of the battery cell group 200.
- an adhesive is applied to at least a partial area of the one surface of the battery cell group 200, thereby cooling the one surface of the battery cell group 200.
- Tube 310 may be glued. This can improve ease of assembly and structural stability.
- FIG. 9 is a perspective view showing the heat sink 300 included in the battery module 100 of FIGS. 3 and 4.
- FIG. 10 is a plan view showing the heat sink 300 of FIG. 9 as seen along the -z axis direction on the xy plane.
- Figure 11 is a partial cross-sectional view showing a portion of a cross-section taken along the cutting line B-B' of Figure 3.
- the heat sink 300 includes cooling tubes 310 interposed between battery cell groups 200 and a manifold 320 connecting the cooling tubes 310.
- the manifold 320 is located in the direction in which the electrode leads 111 and 112 protrude relative to the battery cell 110, runs along the direction in which the battery cell groups 200 are stacked, and connects the cooling tubes 310.
- a flow path is formed inside the cooling tube 310 and the manifold 320, so that the refrigerant flows along the inside of the cooling tube 310 and the manifold 320.
- the cooling tubes 310 and the manifold 320 may be in the form of a tube containing a metal material with excellent thermal conductivity to increase cooling performance.
- the cooling tube 310 interposed between the battery cell groups 200 contacts one surface of the battery cell group 200.
- the cooling tube 310 may be in the form of a rectangular sheet and may be positioned between the battery cell groups 200 while standing upright.
- the cooling tube 310 covers the entire surface of the battery cell group 200 and may contact the surface of the battery cell group 200.
- the wrapping member 210 surrounding the battery cells 110 at the outermost side of the battery cell group 200 may contact the sheet-shaped cooling tube 310.
- an adhesive may be applied to at least a partial area of the one surface of the battery cell group 200, so that the one surface of the battery cell group 200 and the cooling tube 310 may be adhered. As shown in FIG. 11, refrigerant flows in the internal space S of the cooling tube 310 and cools the battery cell groups 200 around it.
- the manifold 320 is connected to each of the cooling tubes 310, and the internal space of the manifold 320 and the internal space S of the cooling tube 310 communicate with each other to circulate the refrigerant.
- the manifold 320 may have a cylindrical shape.
- the manifold 320 is shown as being connected to the lower ends of the cooling tubes 310, there are no particular restrictions on the upper and lower positions of the manifold 320, and it can also be located at the upper ends of the cooling tubes 310.
- the manifold 320 may include a first manifold 321 located on one side of the cooling tubes 310 and a second manifold 322 located on the other side of the cooling tubes 310. You can. In the electrode leads 111 and 112 protruding in opposite directions from the battery cell 110, the first manifold 321 is located in the direction in which one electrode lead 111 protrudes, and the second manifold ( 322) may be located in the direction in which the other electrode lead 112 protrudes. In other words, the first manifold 321 and the second manifold 322 may be located on opposite sides of each other based on the cooling tubes 310.
- a circulation structure of the refrigerant may be formed in the first manifold 321, the cooling tubes 310, and the second manifold 322.
- an inlet 330 through which the refrigerant flows may be connected to the first part 321a of the first manifold 321, and the refrigerant may be connected to the second part 321b of the first manifold 321.
- the discharge part 340 through which the gas is discharged may be connected, and the first part 321a and the second part 321b may be separated by a separation member 321c.
- the first part 321a and the second part 321b are blocked by a separation member 321c, so that the connection between the inner space of the first part 321a and the inner space of the second part 321b can be blocked.
- the refrigerant flowing into the inlet 330 is connected to the first part 321a, the cooling tubes 310 connected to the first part 321a, the second manifold 322, and the second part 321b. It may sequentially flow inside each of the cooling tubes 310 and the second part 321b, and may finally be discharged through the discharge unit 340 connected to the second part 321b.
- the inlet 330 and the outlet 340 are connected to a refrigerant circulation device (not shown) including a pump, and the refrigerant flows through the above-described circulation structure.
- the inlet 330 and the outlet 340 are located in the same direction, so the battery A refrigerant circulation device, including a pump, needs to be provided on only one side of the pack. Accordingly, the space inside the battery pack can be efficiently configured, and there is an advantage that there is no need for a complicated design of the refrigerant circulation device.
- busbar assembly 400 according to this embodiment will be described in detail.
- FIG. 12 is a perspective view showing the insulating frame 430 included in the battery module 100 of FIG. 3.
- the battery module 100 may include a bus bar assembly 400, and the bus bar assembly 400 includes a battery cell 110. It may include a bus bar 410 connected to the electrode leads 111 and 112 and an insulating frame 430 located in a direction in which the electrode leads 111 and 112 protrude with respect to the battery cell 110.
- the insulating frame 430 may be located on the same side as the manifold 320 of the heat sink 300. That is, the insulating frame 430 may be composed of a plurality and may be located on one side and the other side of the battery cell groups 200, respectively.
- the bus bar 410 preferably includes a metal material capable of electrical connection.
- the insulating frame 430 preferably includes an electrically insulating material to prevent short circuiting by contacting the battery cell 110, etc.
- the insulating frame 430 may be an injection-molded plastic product.
- the bus bar 410 may be mounted on a side of the insulating frame 430 opposite to the side facing the battery cell groups 200.
- the electrode leads 111 and 112 protruding from the battery cells 110 may pass through the lead slit 430S formed in the insulating frame 430 and then be bent to connect to the bus bar 410. More specifically, one electrode lead 111 may be connected to the bus bar 410 after passing through the lead slit 430S of the insulating frame 430 located on one side of the battery cell groups 200, and the other electrode lead 111 may be connected to the bus bar 410.
- the electrode lead 112 may pass through the lead slit 430S of the insulating frame 430 located on the other side of the battery cell groups 200 and then be connected to the bus bar 410.
- There is no particular limitation on the connection method between the electrode leads 111 and 112 and the bus bar 410 but for example, welding may be performed.
- the battery cells 110 may be electrically connected to each other in series or parallel.
- a refrigerant hole 430RH may be provided in the insulating frame 430 so that the inlet 330 and outlet 340 of the heat sink 300 can pass through.
- the insulating frame 430 may be equipped with a terminal bus bar for connecting external power of the battery module 100 and a module connector for transmitting voltage and temperature sensing information.
- Figure 13 is a partial cross-sectional view showing a portion of the cross-section taken along the cutting line C-C' of Figure 3.
- the bus bar 410 and the manifold 320 of the heat sink 300 may contact each other through the insulating member 420 located between them.
- the insulating member 420 may be attached to the surface of a part of the bus bar 410 other than the part where the electrode leads 111 and 112 are connected, and the insulating member 420 may be attached to the bus bar 410. It may be in contact with the manifold 320 of the heat sink 300 through the exposed surface.
- One surface of the insulating member 420 may contact the bus bar 410, and the other surface of the insulating member 420 may contact the manifold 320.
- an opening hole 430H may be formed in the insulating frame 430, and the bus bars 410 may be exposed toward the manifold 320 of the heat sink 300 through the opening hole 430H, The bar 410 and the manifold 320 may be in contact with each other via the insulating member 420.
- the bus bar 410 is placed in the battery cell groups 200 of the insulating frame 430. It was mounted on the opposite side of the side facing the.
- an opening hole 430H is formed in the insulating frame 430 so that the bus bar 410 passes through this opening hole 430H and is connected to the manifold ( 320) was extended close to it.
- the battery module 100 has a direct cooling structure for the bus bar 410, which generates a lot of heat, by directly contacting the bus bar 410 with the manifold 320 of the heat sink 300 through which the refrigerant flows. was implemented. Since a direct cooling structure for the bus bar 410 is possible, it helps improve the overall cooling performance of the battery module, and heat generated in the electrode leads 111 and 112 directly connected to the bus bar 410 can also be easily discharged. .
- the insulating member 420 may be an insulating tape that has electrical insulation and adhesive properties.
- the cooling tubes 310 and manifolds 320 included in the heat sink 300 may include a metal material.
- the bus bar 410 contacts the manifold 320 a short circuit may occur, so it is preferable to contact the bus bar 410 with an insulating member 420 having electrical insulation and adhesive properties therebetween.
- the manifold 320 includes an electrically insulating material rather than a metal material, the bus bar 410 directly contacts the manifold 320 without the insulating member 420. can do.
- Figure 14 is a perspective view showing an insulating frame 430' and a bus bar 410 according to another embodiment of the present invention.
- a bus bar 410 may be mounted on an insulating frame 430' according to another embodiment of the present invention.
- the electrode lead may be bent after passing through the lead slit (430S) formed in the insulating frame (430') and connected to the bus bar (410).
- 430S lead slit
- Detailed explanations are omitted as they are duplicates of what was explained above.
- the bus bar 410 may extend beyond one side of the insulating frame 430' and be exposed toward the manifold of the heat sink. As shown in FIG. 14, the bus bar 410 may extend further downward than the insulating frame 430'. Unlike the insulating frame 430 with the opening hole 430H shown in FIGS. 12 and 13, the insulating frame 430' in this embodiment has a height such that the bus bar 410 is exposed toward the manifold. It can be shortened.
- Figure 15 is a plan view showing the heat sink 300' according to another embodiment of the present invention as seen along the -z axis direction on the xy plane.
- a heat sink 300' includes cooling tubes 310 and a manifold 320 connecting the cooling tubes 310. Additionally, the manifold 320 may include a first manifold 321 located on one side of the cooling tubes 310 and a second manifold 322 located on the other side of the cooling tubes 310.
- a circulation structure of the refrigerant may be formed in the first manifold 321, the cooling tubes 310, and the second manifold 322. Specifically, an inlet 330 through which the refrigerant flows may be connected to the first manifold 321, and an outlet 340 through which the refrigerant is discharged may be connected to the second manifold 322.
- the refrigerant flowing into the inlet 330 may sequentially flow inside each of the first manifold 321, the cooling tubes 310, and the second manifold 322, and finally the second manifold. It can be discharged through the discharge part 340 connected to (322).
- the inlet 330 and the outlet 340 are connected to a refrigerant circulation device (not shown) including a pump, and the refrigerant flows through the above-described circulation structure.
- the refrigerant inside the cooling tubes 310 flows in only one direction, and the path is shortened, so the refrigerant can circulate even with a relatively low pump pressure. It has the advantage of being able to Additionally, since the refrigerant flows in only one direction, there is an advantage that an even cooling effect can be achieved for each battery cell 110.
- Figures 16 and 17 are a front view and a top view, respectively, of a battery pack according to an embodiment of the present invention. Specifically, in the battery pack 1000 containing two battery modules 100 of FIG. 3, the view along the -x axis direction in the yz plane is shown in FIG. 16, and the -z axis direction in the xy plane is shown in FIG. The view along the line is shown in Figure 17.
- the battery pack 1000 includes a battery module 100, a pack frame 1100 in which the battery module 100 is stored, and a pack frame. It includes vertical beams 1200 disposed on the bottom 1100F of the pack frame 1100 so as to be perpendicular to one side of the bottom 1100F of the pack frame 1100.
- the battery module 100 is disposed between the vertical beams 1200. There is no particular limitation on the number of battery modules 100 provided in the battery pack 1000, and one or more battery modules 100 may be disposed.
- an adhesive member 1400 may be positioned between the battery module 100 and the bottom portion 1100F of the pack frame 1100.
- the battery module 100 may be fixed to the bottom 1100F of the pack frame 1100 through an adhesive member 1400 having adhesive properties.
- the battery cells 110 are not stored in a specific frame, but the battery cell groups 200 and the heat sink 300 are directly fixed to the adhesive member 1400. It may be mounted on the pack frame 1100.
- the battery pack 1000 is located at the top of the battery module 100, continues along the direction in which the battery cell groups 200 are stacked, and further includes an upper bracket 1300 fastened to the vertical beam 1200. can do.
- the upper bracket 1300 may be assembled to the vertical beam 1200, and there is no particular limitation on the assembly method between the upper bracket 1300 and the vertical beam 1200, and adhesive, welding, or bolting assembly may be applied.
- the battery module 100 may be mounted and fixed on the pack frame 1100 through the vertical beam 1200 and the upper bracket 1300.
- the battery module 100 is not stored in a separate frame and fixed to the pack frame as a frame, but is formed by the adhesive member 1400 on the bottom 1100F, the vertical beam 1200, and the upper part. It is fixed by a bracket 1300, etc. Since it is not stored in a separate frame, a simplified structure can be implemented by reducing the weight and volume of the frame, which is effective in improving space utilization and increasing battery capacity.
- the battery module 100 since it is not stored in a frame, the battery module 100 does not have sufficient structural rigidity to prevent swelling of the battery cells 110. Accordingly, in this embodiment, the side of the battery module 100 is designed to be in close contact with the vertical beams 1200, so that the vertical beams 1200 can supplement the structural rigidity against swelling of the battery cell 110.
- a pad 1500 for tolerance compensation may be disposed at least one of between the battery module 100 and the vertical beam 1200 or between the battery module 100 and the upper bracket 1300.
- Figure 18 is a perspective view showing a battery pack according to another embodiment of the present invention.
- the battery pack 1000 includes a battery module 100, a pack frame 1100 in which the battery module 100 is stored, and a bottom portion of the pack frame 1100.
- (1100F) includes vertical beams 1200 disposed on the bottom 1100F of the pack frame 1100 perpendicular to one surface, and the battery module 100 is disposed between the vertical beams 1200.
- the battery module 100 may further include a module frame 500 that accommodates battery cell groups 200 and a heat sink 300.
- the module frame 500 includes a bottom surface and side surfaces 510 extending upward from both sides facing the bottom surface, and may have an open top.
- a module mounting portion 500M may be formed on the side 510 of the module frame 500, protruding in a direction perpendicular to the side 510, and the module mounting portion 500M may be fastened to the vertical beam 1200. You can. For example, a through hole may be formed in the module mounting portion 500M. After the bolt member passes through this through hole, bolting assembly can be performed in which the bolt member is fastened to the vertical beam 1200.
- the side of the battery module 100 is brought into close contact with the vertical beams 1200, and the module mounting portion 500M of the module frame 500 is fastened to the vertical beam 1200.
- the structural rigidity against swelling of the battery cell 110 is complemented and the battery module 100 is designed to be firmly fixed to the pack frame 1100.
- One or more battery modules according to this embodiment described above may be mounted together with various control and protection systems such as a Battery Management System (BMS), Battery Disconnect Unit (BDU), and a cooling system to form a battery pack.
- BMS Battery Management System
- BDU Battery Disconnect Unit
- the battery module or battery pack can be applied to various devices. Specifically, it can be applied to transportation means such as electric bicycles, electric vehicles, and hybrids, or ESS (Energy Storage System), but is not limited to this and can be applied to various devices that can use secondary batteries.
- transportation means such as electric bicycles, electric vehicles, and hybrids, or ESS (Energy Storage System), but is not limited to this and can be applied to various devices that can use secondary batteries.
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Abstract
Description
Claims (20)
- 적어도 하나의 전지셀을 포함하고 일 방향을 따라 적층되는 복수의 전지셀 그룹들; 및상기 전지셀 그룹들을 냉각하는 히트 싱크;를 포함하고,상기 전지셀은 상기 전지셀 그룹들이 적층되는 방향과 수직한 방향으로 돌출된 전극 리드들을 포함하며,상기 히트 싱크는, 상기 전지셀 그룹들 사이에 개재되는 냉각 튜브들 및 상기 전지셀을 기준으로 상기 전극 리드들이 돌출되는 방향에 위치하고 상기 전지셀 그룹들이 적층되는 방향을 따라 이어지며 상기 냉각 튜브들을 연결하는 매니폴드를 포함하고,상기 냉각 튜브와 상기 매니폴드의 내부에 유로가 형성되어, 냉매가 상기 냉각 튜브와 상기 매니폴드의 내부를 따라 흐르며,상기 냉각 튜브가 상기 전지셀 그룹의 일면에 접촉하는 전지 모듈.
- 제1항에서,상기 전극 리드와 연결되는 버스바를 더 포함하고,상기 버스바와 상기 매니폴드 사이에 절연 부재가 위치하고,상기 절연 부재의 일면은 상기 버스바와 접촉하고, 상기 절연 부재의 타면은 매니폴드와 접촉하는 전지 모듈.
- 제2항에서,상기 전지셀을 기준으로 상기 전극 리드가 돌출되는 방향에 위치한 절연 프레임을 더 포함하고,상기 버스바는 상기 절연 프레임에 장착되는 전지 모듈.
- 제3항에서,상기 버스바는, 상기 절연 프레임 중 상기 전지셀 그룹들과 마주하는 면의 반대면에 장착되고,상기 전극 리드는, 상기 절연 프레임에 형성된 리드 슬릿을 통과한 뒤 구부러져 상기 버스바에 연결되는 전지 모듈.
- 제4항에서,상기 절연 프레임에 개구홀이 형성되고,상기 버스바는 상기 개구홀을 통해 상기 매니폴드를 향해 노출되는 전지 모듈.
- 제4항에서,상기 버스바는 상기 절연 프레임의 일 측변보다 연장되어 상기 매니폴드를 향해 노출되는 전지 모듈.
- 제2항에서,상기 절연 부재는 전기적 절연성과 접착성을 갖는 절연 테이프인 전지 모듈.
- 제1항에서,상기 전극 리드와 연결되는 버스바를 더 포함하고,상기 버스바와 상기 매니폴드가 직접 접촉하는 전지 모듈.
- 제1항에서,상기 냉각 튜브는 장방형의 시트 형태이고,상기 냉각 튜브가 상기 전지셀 그룹의 상기 일면 전체를 커버하며 상기 전지셀 그룹의 상기 일면에 접촉하는 전지 모듈.
- 제1항에서,상기 매니폴드는 원통 형태인 전지 모듈.
- 제1항에서,상기 전지셀 그룹은, 적어도 하나의 상기 전지셀이 랩핑 부재에 감싸진 형태인 전지 모듈.
- 제11항에서,상기 랩핑 부재는 전기적 절연성을 갖는 전지 모듈.
- 제1항에서,상기 전지셀 그룹은 둘 이상의 상기 전지셀들이 랩핑 부재에 감싸진 형태이고, 둘 이상의 상기 전지셀들 사이 중 적어도 한 곳에 압축 패드가 개재되는 전지 모듈.
- 제1항에서,상기 매니폴드는 상기 냉각 튜브들의 일 측에 위치한 제1 매니폴드 및 상기 냉각 튜브들의 타 측에 위치한 제2 매니폴드를 포함하고,상기 제1 매니폴드, 상기 냉각 튜브들 및 상기 제2 매니폴드에서 상기 냉매의 순환 구조가 형성되는 전지 모듈.
- 제14항에서,상기 제1 매니폴드의 제1 부분에 상기 냉매가 유입되는 유입부가 연결되고, 상기 제1 매니폴드의 제2 부분에 상기 냉매가 배출되는 배출부가 연결되며,상기 제1 부분과 상기 제2 부분은 분리 부재로 구분되며,상기 냉매는, 상기 제1 부분, 상기 제1 부분에 연결된 상기 냉각 튜브들, 상기 제2 매니폴드, 상기 제2 부분에 연결된 상기 냉각 튜브들 및 상기 제2 부분 각각의 내부를 차례로 흐르는 전지 모듈.
- 제14항에서,상기 제1 매니폴드에 상기 냉매가 유입되는 유입부가 연결되고, 상기 제2 매니폴드에 상기 냉매가 배출되는 배출부가 연결되며,상기 냉매는, 상기 제1 매니폴드, 상기 냉각 튜브들 및 상기 제2 매니폴드 각각의 내부를 차례로 흐르는 전지 모듈.
- 제1항에 따른 전지 모듈;상기 전지 모듈이 수납되는 팩 프레임; 및상기 팩 프레임의 바닥부 일면과 수직하도록, 상기 팩 프레임의 상기 바닥부 상에 배치되는 수직 빔들;을 포함하고,상기 전지 모듈은, 상기 수직 빔들 사이에 배치되는 전지팩.
- 제17항에서,상기 전지 모듈과 상기 팩 프레임의 상기 바닥부 사이에 접착 부재가 위치한 전지팩.
- 제17항에서,상기 전지 모듈의 상부에 위치하고, 상기 전지셀 그룹들이 적층되는 방향을 따라 이어지며, 상기 수직 빔에 체결되는 상부 브라켓을 더 포함하는 전지팩.
- 제17항에서,상기 전지 모듈은, 상기 전지셀 그룹들 및 상기 히트 싱크를 수납하는 모듈 프레임을 더 포함하고,상기 모듈 프레임에는 돌출된 모듈 마운팅부가 형성되며,상기 모듈 마운팅부가 상기 수직 빔에 체결되는 전지팩.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP23857576.5A EP4428990A1 (en) | 2022-08-24 | 2023-07-19 | Battery module and battery pack comprising same |
CN202380014847.2A CN118339703A (zh) | 2022-08-24 | 2023-07-19 | 电池模块和包括该电池模块的电池组 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020220106189A KR20240028583A (ko) | 2022-08-24 | 2022-08-24 | 전지 모듈 및 이를 포함하는 전지팩 |
KR10-2022-0106189 | 2022-08-24 |
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WO2024043540A1 true WO2024043540A1 (ko) | 2024-02-29 |
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PCT/KR2023/010386 WO2024043540A1 (ko) | 2022-08-24 | 2023-07-19 | 전지 모듈 및 이를 포함하는 전지팩 |
Country Status (4)
Country | Link |
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EP (1) | EP4428990A1 (ko) |
KR (1) | KR20240028583A (ko) |
CN (1) | CN118339703A (ko) |
WO (1) | WO2024043540A1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20160117955A (ko) * | 2015-04-01 | 2016-10-11 | 주식회사 엘지화학 | 냉각 튜브가 형성된 냉각부재를 포함하는 전지모듈 |
KR20200030964A (ko) * | 2018-09-13 | 2020-03-23 | 주식회사 엘지화학 | 열수축성 튜브를 포함하는 배터리 모듈 |
KR20200106378A (ko) * | 2019-03-04 | 2020-09-14 | 주식회사 엘지화학 | 스웰링 흡수 및 열 차단 기능을 갖는 패드 복합체를 구비하는 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
KR20210017273A (ko) * | 2019-08-07 | 2021-02-17 | 주식회사 엘지화학 | 배터리 모듈과 강성 빔을 통합하고 역방향 조립 방식을 채용한 배터리 팩 |
US20210249710A1 (en) * | 2018-08-03 | 2021-08-12 | Mitsui Chemicals, Inc. | Cooling plate and battery structure |
KR20220106189A (ko) | 2019-12-04 | 2022-07-28 | 어플라이드 머티어리얼스, 인코포레이티드 | 고 붕소 함량 하드 마스크 재료들 |
-
2022
- 2022-08-24 KR KR1020220106189A patent/KR20240028583A/ko unknown
-
2023
- 2023-07-19 EP EP23857576.5A patent/EP4428990A1/en active Pending
- 2023-07-19 WO PCT/KR2023/010386 patent/WO2024043540A1/ko active Application Filing
- 2023-07-19 CN CN202380014847.2A patent/CN118339703A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160117955A (ko) * | 2015-04-01 | 2016-10-11 | 주식회사 엘지화학 | 냉각 튜브가 형성된 냉각부재를 포함하는 전지모듈 |
US20210249710A1 (en) * | 2018-08-03 | 2021-08-12 | Mitsui Chemicals, Inc. | Cooling plate and battery structure |
KR20200030964A (ko) * | 2018-09-13 | 2020-03-23 | 주식회사 엘지화학 | 열수축성 튜브를 포함하는 배터리 모듈 |
KR20200106378A (ko) * | 2019-03-04 | 2020-09-14 | 주식회사 엘지화학 | 스웰링 흡수 및 열 차단 기능을 갖는 패드 복합체를 구비하는 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
KR20210017273A (ko) * | 2019-08-07 | 2021-02-17 | 주식회사 엘지화학 | 배터리 모듈과 강성 빔을 통합하고 역방향 조립 방식을 채용한 배터리 팩 |
KR20220106189A (ko) | 2019-12-04 | 2022-07-28 | 어플라이드 머티어리얼스, 인코포레이티드 | 고 붕소 함량 하드 마스크 재료들 |
Also Published As
Publication number | Publication date |
---|---|
EP4428990A1 (en) | 2024-09-11 |
KR20240028583A (ko) | 2024-03-05 |
CN118339703A (zh) | 2024-07-12 |
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