WO2022231202A1 - 전지 팩 및 이를 포함하는 디바이스 - Google Patents
전지 팩 및 이를 포함하는 디바이스 Download PDFInfo
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- WO2022231202A1 WO2022231202A1 PCT/KR2022/005652 KR2022005652W WO2022231202A1 WO 2022231202 A1 WO2022231202 A1 WO 2022231202A1 KR 2022005652 W KR2022005652 W KR 2022005652W WO 2022231202 A1 WO2022231202 A1 WO 2022231202A1
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- Prior art keywords
- frame
- heat dissipation
- battery
- dissipation member
- battery pack
- Prior art date
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 76
- 238000001816 cooling Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 21
- 238000012546 transfer Methods 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010071232 Protuberant ear Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Images
Classifications
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- H01—ELECTRIC ELEMENTS
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- 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
- 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
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- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- 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
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- H—ELECTRICITY
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- 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
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- 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
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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
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- 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
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- H—ELECTRICITY
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- 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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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- 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
- H01M50/218—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
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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
- H01M50/262—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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- 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 pack and a device including the same, and more particularly, to a battery pack that minimizes thermal contact resistance and a device including the same.
- a rechargeable battery capable of charging and discharging is a measure to solve air pollution such as conventional gasoline vehicles using fossil fuels, and electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles ( P-HEV) is being used as a power source, and the need for the development of secondary batteries is increasing.
- EVs electric vehicles
- HEVs hybrid electric vehicles
- P-HEV plug-in hybrid electric vehicles
- lithium secondary batteries do not have much memory effect compared to nickel-based secondary batteries, so charging and discharging are possible freely. , the self-discharge rate is very low and the energy density is high.
- Such a lithium secondary battery mainly uses a lithium-based oxide and a carbon material as a positive electrode active material and a negative electrode active material, respectively.
- a lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate to which the positive electrode active material and the negative electrode active material are respectively applied with a separator interposed therebetween, and a battery case for sealingly accommodating the electrode assembly together with an electrolyte.
- a lithium secondary battery may be classified into a can-type secondary battery in which the electrode assembly is embedded in a metal can and a pouch-type secondary battery in which the electrode assembly is embedded in a pouch of an aluminum laminate sheet according to the shape of the exterior material.
- a battery module in which a plurality of battery cells are electrically connected this is used In such a battery module, a plurality of battery cells are connected in series or parallel to each other to form a battery cell stack, thereby improving capacity and output.
- one or more battery modules may be mounted together with various control and protection systems such as a battery management system (BMS) and a cooling system to form a battery pack.
- BMS battery management system
- the battery pack has a structure in which a plurality of battery modules are combined, safety and operational efficiency of the battery pack may be problematic when some battery modules are overvoltage, overcurrent, or overheated.
- the battery pack capacity is gradually increasing, and accordingly, the internal energy of the pack is also increased to meet the strengthened safety standards and to secure the safety of the vehicle and driver. , it is necessary to design a structure to improve safety in case of ignition in the module.
- An object of the present invention is to provide a battery pack that minimizes thermal contact resistance and a device including the same.
- a battery pack according to an embodiment of the present invention includes a plurality of battery modules; and a pack case accommodating the plurality of battery modules, wherein the pack case includes an upper case, and further includes a heat dissipation member formed to contact the upper case.
- the heat dissipation member may include a depression, and a cooling pad may be formed in the depression.
- the cooling pad may be fitted to the recessed portion, and the cooling pad may have the same size as the recessed portion.
- the cooling pad may be formed of a silicon-based or acrylic-based material.
- the heat dissipation member may be bent at a right angle, and may further include a plurality of fastening portions in a region other than the recessed portion among regions of one surface of the heat dissipation member in which the heat dissipation member is in contact with the upper case.
- the nut member When the bolt member and the nut member are coupled, the nut member may rise and the heat dissipation member may be in close contact with the upper case.
- the battery module may include a module frame, the module frame may include an upper frame and a side frame, and the heat dissipation member may be in contact with the upper frame and the side frame.
- the heat dissipation member may be formed between adjacent battery modules among the plurality of battery modules.
- the heat dissipation member may be formed in plurality, and the other surface of the surface of the plurality of heat dissipation members in contact with the side frame of the battery module may be formed to face each other.
- the heat dissipation member may include: a frame member including a first frame and a second frame connected to each other, wherein an inner surface of the first frame and an inner surface of the second frame are folded to face each other; a first heat insulating member attached to an outer surface of the first frame; a second heat insulating member attached to the outer surface of the second frame; a central heat insulating member positioned between the inner surface of the first frame and the inner surface of the second frame; a first heat dissipating member positioned between the inner surface of the first frame and the central heat insulating member; and a second heat dissipation member positioned between the inner surface of the second frame and the central heat insulating member.
- a device includes the battery pack described above.
- the battery pack according to an embodiment of the present invention may rapidly transfer thermal energy to the outside of the pack frame and the pack when the battery pack is ignited due to a novel type of thermal energy transfer structure.
- thermal energy transfer efficiency may be increased, and the safety of the battery pack may be improved.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a perspective view illustrating a heat dissipation member formed in the battery pack of FIG. 1 .
- FIG. 3 is a perspective view illustrating a battery module included in the battery pack of FIG. 1 .
- FIG. 4 is a perspective view illustrating a battery cell included in the battery module of FIG. 3 .
- FIG. 5 is a perspective view illustrating a heat dissipation member and a cooling pad formed on the battery module of FIG. 3 .
- FIG. 6 is a view showing the coupling structure of the coupling portion of the heat dissipation member.
- FIG. 7 and 8 are views illustrating a heat dissipation member according to another embodiment included in the battery pack of the present invention.
- a part of a layer, film, region, plate, etc. when a part of a layer, film, region, plate, etc. is said to be “on” or “on” another part, it includes not only cases where it is “directly on” another part, but also cases where there is another part in between. . Conversely, when we say that a part is “just above” another part, we mean that there is no other part in the middle.
- the reference portion means to be located above or below the reference portion, and to necessarily mean to be located “on” or “on” in the direction opposite to gravity not.
- planar view it means when the target part is viewed from above, and when it is referred to as “cross-section”, it means when the cross-section obtained by cutting the target part vertically is viewed from the side.
- the first and second terms used in the present application may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a perspective view illustrating a heat dissipation member formed in the battery pack of FIG. 1 .
- 3 is a perspective view illustrating a battery module included in the battery pack of FIG. 1 .
- 4 is a perspective view illustrating a battery cell included in the battery module of FIG. 3 .
- the battery pack 100 includes a plurality of battery modules 110 and a pack case 150 for accommodating the plurality of battery modules 110 .
- the pack case 150 includes an upper case 150a, and further includes a heat dissipation member 200 formed to contact the upper case 150a.
- the plurality of battery modules 110 may include a plurality of battery cells 111 . More specifically, a plurality of battery cells 111 may be stacked in a predetermined direction and then mounted on the module frame 118 to configure the battery module 110 .
- the plurality of battery cells 111 may be a pouch-type secondary battery or a prismatic secondary battery because there is no particular limitation on the type thereof, but is preferably a pouch-type secondary battery.
- two electrode leads 116 and 117 face each other, so that one end 114a of the cell body 113 and the other end ( 114b) respectively protruding from the structure.
- the electrode leads 116 and 117 are connected to the electrode assembly (not shown), and protrude from the electrode assembly (not shown) to the outside of the battery cell 111 .
- both ends 114a and 114b of the cell case 114 and one side 114c connecting them are adhered in a state in which an electrode assembly (not shown) is accommodated in the cell case 114 .
- the battery cell 111 according to this embodiment has a total of three sealing portions 114sa, 114sb, 114sc, and the sealing portions 114sa, 114sb, 114sc are sealed by a method such as thermal fusion.
- the other one side may be formed of a bending part 115 .
- the cell case 114 may be formed of a laminate sheet including a resin layer and a metal layer.
- the bending part 115 may extend long along one edge of the battery cell 111 , and at an end of the bending part 115 , a protrusion 111p of the battery cell 111 called a bat-ear. can be formed.
- the battery cells 111 may be configured in plurality, and are electrically connected to each other while stacking the plurality of battery cells 111 .
- FIG. 5 is a perspective view illustrating a heat dissipation member and a cooling pad formed on the battery module of FIG. 3 .
- 6 is a view showing the coupling structure of the coupling portion of the heat dissipation member of the present invention.
- the battery module 110 included in the battery pack 100 of the present invention includes a module frame 118 , and the module frame 118 includes an upper frame 130 and a side frame 140 .
- the heat dissipation member 200 is in contact with the upper frame 130 and the side frame 140 of the battery module 110 , so that when the battery module ignites, thermal energy generated from the battery module is quickly transferred to the upper part of the battery pack 100 . It can be delivered to the case 150a and the pack case 150 . The transferred heat may be radiated to the outside.
- the heat dissipation member 200 may be formed between adjacent battery modules 110 among the plurality of battery modules 110 , and a single or plural number of heat dissipation members may be formed between the adjacent battery modules 110 .
- the plurality of heat dissipating members 200 may be formed so that the other surfaces of the side of the heat dissipating member 200 contacting the side frame 140 of the battery module 110 face each other, and the other surfaces may be in contact with each other.
- a fixing member or the like may be additionally formed between the other surfaces to fix the plurality of heat dissipating members 200 to each other.
- the heat dissipation member 200 included in the battery pack 100 includes a depression part 250 , and the depression part 250 .
- the cooling pad 300 may be a compressible cooling pad.
- the cooling pad 300 may be fitted into the recessed part 250 , and thus the cooling pad 300 may be formed to have the same size as the recessed part 250 .
- the thickness of the cooling pad 300 may be formed to be the same as the depth of the recessed portion 250 .
- the cooling pad 300 may be formed of a compressible cooling pad, and may be formed to be thicker than the depth of the recessed portion 250 as it is in close contact with the upper case 150a by a bolt member and a nut member, which will be described later.
- the cooling pad 300 may be formed of a silicon-based or acrylic-based material.
- the cooling pad may be a silicone pad, a silicone rubber pad, a silicone polymer pad, or the like, and may be an acrylic pad, an acrylic polymer pad, or the like, but is not limited thereto.
- the cooling pad 300 is formed on the recessed portion 250 of the heat dissipation member 200 according to the present embodiment, and the cooling pad 300 is formed as a compressible cooling pad, so that the heat dissipation member 200 and the upper case 150a It is possible to minimize the thermal contact resistance of the phase, increase adhesion, and form an additional cooling structure to enable rapid external release of ignition thermal energy in the battery pack.
- the heat dissipation member 200 of the present invention is bent at a right angle, and the heat dissipation member 200 is in contact with the upper case 150a.
- a plurality of fastening parts 270 may be further included in a region other than 250 .
- the battery pack 100 may further include a bolt member 280 and a nut member 290 coupled at the fastening part 270 .
- the bolt member 280 may be positioned and coupled to the upper end of the fastening part
- the nut member 290 may be positioned and coupled to the lower end of the fastening part 270 .
- the nut member 290 when the bolt member 280 and the nut member 290 are coupled, the nut member 290 is positioned at the lower end of the fastening part 270 and coupled, so that the nut member 290 rises.
- the heat dissipation member 200 of the present invention may be in close contact with the upper case 150a. Therefore, since the thermal contact resistance between the upper case 150a and the heat dissipation member 200 is minimized through the close contact, thermal energy is quickly transferred through the heat dissipation member 200 and the upper case 150a when the module is ignited to the outside. can be emitted.
- FIG. 7 and 8 are views illustrating a heat dissipation member according to another embodiment included in the battery pack of the present invention.
- a plurality of heat dissipation members 200 of FIG. 2 are formed so that each heat dissipation member 200 is a side frame of the battery module 110 ( 140) and the other surfaces of the surface in contact with each other may be formed in an integral shape formed to contact each other. Therefore, it can be understood that the heat dissipation member 200 of FIG. 2 corresponds to the first heat dissipation member 451 or the second heat dissipation member 455 included in the heat dissipation member 400 according to the present exemplary embodiment.
- the heat dissipation member 400 includes a first frame 411 and a second frame 415 connected to each other, but the inner surface of the first frame 411 and the second frame 415 .
- a frame member 410 whose inner surfaces are folded to face each other; a first heat insulating member 431 attached to the outer surface of the first frame 411; a second heat insulating member 435 attached to the outer surface of the second frame 415; a central heat insulating member 470 positioned between the inner surface of the first frame 411 and the inner surface of the second frame 415; a first heat dissipating member 451 positioned between the inner surface of the first frame 411 and the central heat insulating member 470; and a second heat dissipation member 455 positioned between the inner surface of the second frame 415 and the central heat insulating member 470 .
- the heat insulating member 430 may include a first heat insulating member 431 and a second heat insulating member 435, the first heat insulating member 431 is attached to the outer surface of the first frame 411, The second heat insulating member 435 may be attached to the outer surface of the second frame 415 .
- the heat insulating member 430 may be formed of silicon oxide.
- the silicon oxide may be made of a material such as glass fiber.
- the material of the heat insulating member 430 is not limited thereto, and any material having high heat insulating properties may be included in the present embodiment. Accordingly, in the present embodiment, the heat insulating member 430 may block heat transfer between the adjacent battery modules 110 ( FIG. 1 ).
- the central heat insulating member 470 may be positioned between the inner surface of the first frame 411 and the inner surface of the second frame 415 . More specifically, the central heat insulating member 470 may be positioned between the first heat dissipating member 451 and the second heat dissipating member 455 .
- the central heat insulating member 470 may be formed of silicon oxide.
- the silicon oxide may be made of a material such as glass fiber.
- the material of the central heat insulating member 470 is not limited thereto, and any material having high heat insulating properties may be included in the present embodiment.
- the central heat insulating member 470 is the first Heat transfer between the heat dissipation member 451 and the second heat dissipation member 455 may be blocked.
- the heat dissipation member 450 may include a first heat dissipation member 451 and a second heat dissipation member 455 . More specifically, the first heat dissipating member 451 is positioned between the inner surface of the first frame 411 and the central heat insulating member 470 , and the second heat dissipating member 455 is disposed between the inner surface of the second frame 415 and the second heat dissipating member 455 . It may be positioned between the central heat insulating members 470 .
- the heat dissipation member 450 may further include a surface bent in a direction perpendicular to the frame member 410 . More specifically, the first heat dissipating member 451 further includes a surface bent in a direction perpendicular to the first frame 411 , and the second heat dissipating member 455 is perpendicular to the second frame 415 . It may further include a surface bent in the in-direction. Here, the first heat dissipating member 451 and the second heat dissipating member 455 may be bent in opposite directions.
- the heat dissipation member 450 may be made of a material such as aluminum (Al) or graphite.
- Al aluminum
- graphite the material of the heat dissipation member 450 is not limited thereto, and any material having high thermal conductivity may be included in the present embodiment.
- the upper portion of the battery module 110 ( FIG. 1 ) is located adjacent to the bent surface of the first heat dissipating member 451 or the bent surface of the second heat dissipating member 455 , respectively.
- the heat generated in the battery module 110 may be easily dispersed to the first heat dissipating member 451 or the second heat dissipating member 455 .
- the heat dissipation member 400 may include depressions 452 and 456 , and the cooling pad 300 may be formed in the depressions 452 and 456 .
- the cooling pad 300 may be a compressible cooling pad.
- contact between the upper case 150a and the heat dissipation member 400 and the upper case 150a and the cooling pad 300 may occur through the plurality of fastening portions 481 . Therefore, since the thermal contact resistance between the upper case 150a and the heat dissipation member 400 is minimized through the close contact, thermal energy is quickly transferred through the heat dissipation member 400 and the upper case 150a when the module is ignited to the outside. can be emitted.
- the conventional structure for heat transfer does not come in close contact with the pack case and the upper case of the battery pack, in particular, one surface of the upper case adjacent to the inside of the battery pack where the battery module is located, resulting in an increase in thermal contact resistance.
- the thermal contact resistance increases, the thermal energy in the battery pack cannot be transferred quickly, so it is difficult to suppress the ignition by rapidly transferring the thermal energy when the module is ignited.
- the battery pack of the present invention includes a heat dissipation member, and since the heat dissipation member includes a depression and a compressible cooling pad formed on the depression, the heat dissipation member may be in close contact with the upper case of the battery pack.
- the degree of adhesion of the heat dissipating member to the upper case may be increased through the fastening portion included on the heat dissipating member, and the heat dissipating member may be fixed to the upper case to form a stable heat transfer structure.
- the battery pack according to the present invention can be applied to various devices.
- a device may be applied to transportation means such as an electric bicycle, an electric vehicle, and a hybrid vehicle, but the present invention is not limited thereto and can be applied to various devices that can use a battery module, which also falls within the scope of the present invention .
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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)
- Battery Mounting, Suspending (AREA)
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Abstract
Description
Claims (12)
- 복수의 전지 모듈; 및상기 복수의 전지 모듈을 수납하는 팩 케이스를 포함하고,상기 팩 케이스는 상부 케이스를 포함하며,상기 상부 케이스와 접촉하도록 형성된 방열 부재를 더 포함하는 전지 팩.
- 제1항에 있어서,상기 방열 부재는 함몰부를 포함하고,상기 함몰부에는 냉각 패드가 형성되는 전지 팩.
- 제2항에 있어서,상기 냉각 패드는 상기 함몰부에 끼움 결합되고,상기 냉각 패드는 상기 함몰부와 동일한 크기로 형성되는 전지 팩.
- 제3항에 있어서,상기 냉각 패드는 실리콘계 또는 아크릴계 소재로 형성되는 전지 팩.
- 제4항에 있어서,상기 방열 부재는 직각으로 절곡되며,상기 방열 부재가 상기 상부 케이스와 접하는 상기 방열 부재의 일면의 영역 중 함몰부 외의 영역에 복수의 체결부를 더 포함하는 전지 팩
- 제5항에 있어서,상기 체결부에서 결합되는 볼트 부재 및 너트 부재를 더 포함하고,상기 너트 부재는 상기 체결부의 하단에 위치하여 결합되는 전지 팩.
- 제6항에 있어서,상기 볼트 부재 및 너트 부재가 결합 시, 상기 너트 부재가 상승하며 상기 방열 부재는 상기 상부 케이스에 밀착되는 전지 팩.
- 제2항에 있어서,상기 전지 모듈은 모듈 프레임을 포함하고,상기 모듈 프레임은 상부 프레임 및 측면 프레임을 포함하고,상기 방열 부재는 상기 상부 프레임 및 측면 프레임과 접하는 전지 팩.
- 제8항에 있어서,상기 방열 부재는 상기 복수의 전지 모듈 중 인접하는 전지 모듈 사이에 형성되는 전지 팩.
- 제9항에 있어서,상기 방열 부재는 복수개 형성되고,상기 복수개의 방열 부재가 상기 전지 모듈의 측면 프레임과 접하는 면의 타면은 서로 마주보도록 형성되는 전지 팩.
- 제1항에 있어서,상기 방열 부재는,서로 연결되어 있는 제1 프레임 및 제2 프레임을 포함하되, 상기 제1 프레임의 내면과 상기 제2 프레임의 내면이 서로 대면하도록 접혀 있는 프레임 부재;상기 제1 프레임의 외면에 부착되어 있는 제1 단열 부재;상기 제2 프레임의 외면에 부착되어 있는 제2 단열 부재;상기 제1 프레임의 내면과 상기 제2 프레임의 내면 사이에 위치하는 중앙 단열 부재;상기 제1 프레임의 내면과 상기 중앙 단열 부재 사이에 위치하는 제1 열분산 부재; 및상기 제2 프레임의 내면과 상기 중앙 단열 부재 사이에 위치하는 제2 열분산 부재를 포함하는 전지 팩.
- 제1항에 따른 전지 팩을 포함하는 디바이스.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP22796035.8A EP4195366A1 (en) | 2021-04-27 | 2022-04-20 | Battery pack and device including same |
CN202280006495.1A CN116250116A (zh) | 2021-04-27 | 2022-04-20 | 电池组和包括该电池组的装置 |
JP2023514131A JP2023540725A (ja) | 2021-04-27 | 2022-04-20 | 電池パックおよびこれを含むデバイス |
US18/025,383 US20240014460A1 (en) | 2021-04-27 | 2022-04-20 | Battery pack and device including the same |
Applications Claiming Priority (4)
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KR10-2021-0054358 | 2021-04-27 | ||
KR20210054358 | 2021-04-27 | ||
KR10-2022-0047510 | 2022-04-18 | ||
KR1020220047510A KR20220147516A (ko) | 2021-04-27 | 2022-04-18 | 전지 팩 및 이를 포함하는 디바이스 |
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WO2022231202A1 true WO2022231202A1 (ko) | 2022-11-03 |
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PCT/KR2022/005652 WO2022231202A1 (ko) | 2021-04-27 | 2022-04-20 | 전지 팩 및 이를 포함하는 디바이스 |
Country Status (5)
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US (1) | US20240014460A1 (ko) |
EP (1) | EP4195366A1 (ko) |
JP (1) | JP2023540725A (ko) |
CN (1) | CN116250116A (ko) |
WO (1) | WO2022231202A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120102344A (ko) * | 2011-03-08 | 2012-09-18 | 에스비리모티브 주식회사 | 배터리 팩 |
KR20160149576A (ko) * | 2015-06-18 | 2016-12-28 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20170019041A (ko) * | 2015-08-11 | 2017-02-21 | 주식회사 엘지화학 | 금속 팩 케이스와 열전도 부재를 포함하는 전지팩 |
KR20180029602A (ko) * | 2016-09-13 | 2018-03-21 | 주식회사 엘지화학 | 배터리 팩 |
KR20180080614A (ko) * | 2017-01-04 | 2018-07-12 | 현대자동차주식회사 | 전기자동차의 수냉식 배터리모듈 |
-
2022
- 2022-04-20 EP EP22796035.8A patent/EP4195366A1/en active Pending
- 2022-04-20 WO PCT/KR2022/005652 patent/WO2022231202A1/ko active Application Filing
- 2022-04-20 JP JP2023514131A patent/JP2023540725A/ja active Pending
- 2022-04-20 CN CN202280006495.1A patent/CN116250116A/zh active Pending
- 2022-04-20 US US18/025,383 patent/US20240014460A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120102344A (ko) * | 2011-03-08 | 2012-09-18 | 에스비리모티브 주식회사 | 배터리 팩 |
KR20160149576A (ko) * | 2015-06-18 | 2016-12-28 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20170019041A (ko) * | 2015-08-11 | 2017-02-21 | 주식회사 엘지화학 | 금속 팩 케이스와 열전도 부재를 포함하는 전지팩 |
KR20180029602A (ko) * | 2016-09-13 | 2018-03-21 | 주식회사 엘지화학 | 배터리 팩 |
KR20180080614A (ko) * | 2017-01-04 | 2018-07-12 | 현대자동차주식회사 | 전기자동차의 수냉식 배터리모듈 |
Also Published As
Publication number | Publication date |
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US20240014460A1 (en) | 2024-01-11 |
EP4195366A1 (en) | 2023-06-14 |
CN116250116A (zh) | 2023-06-09 |
JP2023540725A (ja) | 2023-09-26 |
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