WO2023277305A1 - 전지 팩 및 이를 포함하는 디바이스 - Google Patents
전지 팩 및 이를 포함하는 디바이스 Download PDFInfo
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- WO2023277305A1 WO2023277305A1 PCT/KR2022/004489 KR2022004489W WO2023277305A1 WO 2023277305 A1 WO2023277305 A1 WO 2023277305A1 KR 2022004489 W KR2022004489 W KR 2022004489W WO 2023277305 A1 WO2023277305 A1 WO 2023277305A1
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- Prior art keywords
- partition wall
- beams
- frame
- paragraph
- pair
- Prior art date
Links
- 238000013022 venting Methods 0.000 claims abstract description 90
- 238000005192 partition Methods 0.000 claims description 137
- 230000000903 blocking effect Effects 0.000 claims description 53
- 238000004891 communication Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 94
- 238000001816 cooling Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 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
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—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
- H01M10/6561—Gases
-
- 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
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- 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 pack and a device including the same, and more particularly, when high-temperature gas and flame are generated in some battery modules, the generated high-temperature gas and flame are cooled through a relatively long venting path and cooled. It relates to a battery pack and a device including the same that safely discharges the generated gas and flame to the outside of the battery pack.
- Secondary batteries which are highly applicable to each product group and have electrical characteristics such as high energy density, are commonly applied not only to portable devices but also to electric or hybrid vehicles driven by an electrical driving source, power storage devices, and the like. These secondary batteries are attracting attention as a new energy source for improving energy efficiency and eco-friendliness in that they do not generate any by-products due to the use of energy as well as the primary advantage of significantly reducing the use of fossil fuels.
- lithium secondary batteries can be classified into cylindrical or prismatic secondary batteries in which electrode assemblies are embedded in metal cans and pouch-type secondary batteries in which electrode assemblies are embedded in aluminum laminate sheet pouches, depending on the shape of the exterior material.
- a medium-large module structure battery pack in which a plurality of secondary batteries are connected in series or parallel to a battery module is increasing.
- capacity and output are improved by forming a battery cell stack in which a plurality of battery cells are connected in series or parallel to each other.
- a plurality of 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 high-temperature gas and the emission material generated during thermal runaway of the battery module are directly discharged to the outside, the high-temperature gas and the emission substance encounter oxygen and generate a flame. Accordingly, when high-temperature gas and flame are generated in some battery modules, the high-temperature gas and flame need to be sufficiently cooled before being discharged to the outside to minimize the possibility of flame when discharged to the outside.
- the problem to be solved by the present invention is that when high-temperature gas and flame are generated in some battery modules, the generated high-temperature gas and flame are cooled through a relatively long venting path, and the cooled gas and flame are discharged to the outside of the battery pack. It relates to a battery pack that safely discharges and a device including the same.
- a lower pack frame in which a plurality of battery modules are mounted; and an upper pack frame positioned above the battery module, and at least two inner beams and side frames serving as venting paths through which gas generated from the battery module moves are formed on the bottom surface of the lower pack frame,
- the side frame extends along an edge of the bottom surface of the lower pack frame, the at least two inner beams are spaced apart from each other, and an end of the inner beam and an inner surface of the side frame are in contact with each other, and the inner beam At least one first connection portion communicating with an end of the side frame and an inner surface of the side frame is formed, and the inner beam includes at least one venting hole penetrating the side surface of the inner beam.
- the plurality of battery modules may be partitioned from each other by the side frame and the at least two inner beams.
- a pair of battery modules may be disposed between a pair of inner beams positioned adjacent to each other among the at least two inner beams and the side frame.
- the at least one venting hole may be located between the pair of battery modules.
- the side frame may include a pair of first side beams extending in a longitudinal direction of the lower pack frame and a pair of second side beams extending in a width direction of the lower pack frame.
- the inner beam may extend along the length direction of the second side beam, and the first connection part may be located on a surface where an end of the inner beam and an inner surface of the first side beam come into contact.
- the first side beam and the second side beam may include a second connection portion communicating with each other.
- At least one bent part may be formed in one of the pair of second side beams.
- the side frame is located on one of the pair of first side beams, and includes a blocking portion in which an inside of the first side beam is closed, and the blocking portion is formed on the second side beam in which the bent portion is formed.
- the first connection portion positioned adjacent to may be closed.
- the inner beam includes a first inner partition wall and a second inner partition wall extending in a longitudinal direction of the inner beam, the second inner partition wall is positioned on the first inner partition wall, and the first inner partition wall and the second inner partition wall are positioned on the first inner partition wall.
- the at least one venting hole may be located between the bottom surfaces of the inner beams.
- Both ends of the first inner partition wall are spaced apart from both side surfaces of the inner beam, both ends of the second inner partition wall are in contact with the side surfaces of the inner beam, respectively, and the center of the second inner partition wall is the second inner partition wall.
- 1 may be open toward the inner partition wall, and the first connection portion may be formed on both side surfaces of the inner beam positioned between both ends of the second inner partition wall and an upper surface of the inner beam.
- first inner partition wall is in contact with one side surface of the inner beam
- the other end of the first inner partition wall has opposite sides of the inner beam spaced apart from each other
- one end of the second inner partition wall is spaced apart from each other.
- the inner beam is in contact with the opposite side of the inner beam
- the other end of the second inner partition wall is spaced apart from one side of the inner beam, and is located between the end of the second inner partition wall and the upper surface of the inner beam.
- first connection portion is formed on the opposite side of the inner beam, one side of the inner beam may be closed.
- the opposite side of the inner beam may be positioned adjacent to the first side beam on which the blocking part is formed among the pair of first side beams.
- the first side beam includes a first side partition wall and a second side partition wall extending in a longitudinal direction of the first side beam, the second side partition wall is positioned on the first side partition wall, and the first side partition wall is disposed on the first side partition wall. Both ends of the side partition wall are in contact with both side surfaces of the first side beam, and between the first side partition wall and the second side partition wall in the first side beam where the blocking part is located among the pair of first side beams.
- the first connection part may be located in.
- Both ends of the second side partition wall are in contact with both side surfaces of the first side beam, the center of the second side partition wall is open toward the first side partition wall, and the second connection portion is the second side partition wall. It may be formed on both sides of the first side beam located between the partition wall and the upper surface of the first side beam.
- One end of the second side partition wall is in contact with one side surface of the first side beam, the other end of the second side partition wall is spaced apart from the other side surface of the first side beam, and the pair of first side partitions In the first side beam where the blocking part is located among the beams, the second connection part is formed on both sides of the first side beam located between the end of the second side partition and the upper surface of the first side beam, respectively.
- the blocking portion may close the second connection portion adjacent to the other side of the first side beam.
- both ends of the first side partition wall and the second side partition wall may respectively contact both side surfaces of the first side beam.
- a second connection portion in which surfaces of the first side beam and the second side beam contact each other are in communication, and the second connection portion is located between one end of the second side partition wall and an upper surface of the first side beam. can do.
- a venting valve may be inserted into the venting hole.
- a device includes the battery pack described above.
- the battery pack of the present invention and the device including the same have a relatively long venting path formed by the inner frame and the side frame, so that when high-temperature gas and flame are generated in some battery modules, the generated high-temperature Gas and flame are cooled through the relatively long venting path, and the cooled gas and flame can be safely discharged to the outside of the battery pack.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the battery pack of FIG. 1 .
- FIG. 3 is a view showing a gas discharge path based on the upper surface of the battery pack of FIG. 1 .
- FIG. 4 is a cross-sectional view taken along the cutting line A-A′ of FIG. 2 .
- FIG. 5 is a cross-sectional view taken along the cutting line BB′ of FIG. 2 .
- FIG. 6 is a cross-sectional view taken along the line C-C′ of FIG. 2 .
- FIG. 7 is a view showing a venting valve inserted into a venting hole included in the battery pack of FIG. 1 .
- FIG. 8 is a cross-sectional view of a side frame or an inner beam included in the battery pack of FIG. 1 .
- FIG. 9 is a view showing a gas discharge path based on the top surface of a battery pack according to another embodiment of the present invention.
- FIG. 10 is a cross-sectional view taken along the cutting line A-A′ of FIG. 2 .
- FIG. 11 is a cross-sectional view taken along the cutting line BB′ of FIG. 2 .
- FIG. 12 is a cross-sectional view taken along the line C-C′ in FIG. 2 .
- planar image it means when the target part is viewed from above, and when it is referred to as “cross-sectional image”, it means when a cross section of the target part cut vertically is viewed from the side.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the battery pack of FIG. 1 .
- FIG. 3 is a view showing a gas discharge path based on the upper surface of the battery pack of FIG. 1 .
- the battery pack 1000 includes a lower pack frame 1100 on which a plurality of battery modules 100 are mounted; and an upper pack frame 1200 positioned above the battery module 100 .
- the lower pack frame 1100 and the upper pack frame 1200 may be coupled to each other by welding or the like to seal the inside of the battery pack 1000 .
- the battery module 100 may include a battery cell stack 120 and module frames 210 and 250 in which a plurality of battery cells are stacked in a predetermined direction.
- the module frames 210 and 250 may include an upper frame 210 and a lower pack frame 250, and the battery cell stack 120 is mounted between the upper frame 210 and the lower pack frame 250
- the battery module 100 may be configured.
- the module frames 210 and 250 are not limited to the above, and may be monoframes in the form of metal plates in which the upper and lower surfaces and both sides are integrated.
- the type of the battery cell is not particularly limited, it may be a pouch-type secondary battery or a prismatic secondary battery, but is preferably a pouch-type secondary battery.
- the lower pack frame 1100 has at least two inner beams 1110 and side frames 1150 formed on the bottom surface of the lower pack frame 1100 .
- at least two of the inner beam 1110 and the side frame 1150 may be a venting path through which gas generated in the battery module 100 moves.
- the lower pack frame 1100 includes at least two inner beams 1110 and side frames 1150 protruding from the bottom surface of the lower pack frame 1100 toward the upper frame 1200 .
- the bottom surface of the lower pack frame 1100 and at least two inner beams 1110 and side frames 1150 may be coupled to each other by welding or the like.
- the inner beam 1110 and the side frame 1150 may be made of a tubular extruded reinforcing beam.
- the extruded reinforcing beam may be made of aluminum (Al).
- Al aluminum
- the plurality of battery modules 100 may be partitioned from each other by a side frame 1150 and at least two inner beams 1110.
- the plurality of battery modules 100 may be respectively disposed in an area located between the side frame 1150 and at least two inner beams 1110 .
- a pair of battery modules 100 between a pair of inner beams 1110 positioned adjacent to each other and a side frame 1150 among at least two inner beams 1110 may be placed.
- the pair of battery modules 100 may be spaced apart and disposed in a direction facing each other.
- end plates (not shown) included in each battery module 100 may be disposed in a direction facing each other.
- the plurality of battery modules 100 are surrounded by at least two inner beams 1110 and side frames 1150, so that each battery module 100 can be protected from external impact.
- the side frames 1150 may extend along the edges of the bottom surface of the lower pack frame 1100 . More specifically, it may extend along each corner of the bottom surface of the lower pack frame 1100 .
- the upper surface of the side frame 1150 may be in contact with the upper pack frame 1200 .
- the upper surface of the side frame 1150 and the upper pack frame 1200 may be coupled to each other by welding or the like to seal the inside of the battery pack 1000 .
- At least two inner beams 1110 may be spaced apart from each other.
- the distance at which the at least two inner beams 1110 are spaced apart may be equal to or greater than the size of the battery module 100 .
- the end of the inner beam 1110 may be in contact with the inner surface of the side frame 1150. More specifically, both ends of the inner beam 1110 may be in contact with the inner surface of the side frame 1150, respectively.
- at least one first connection portion 1130a (FIG. 4) communicating with the end of the inner beam 1110 and the inner surface of the side frame 1150 may be formed. More specifically, the first connection portion 1130a (FIG. 4) may be formed on at least a portion of a surface where the end of the inner beam 1110 and the inner surface of the side frame 1150 come into contact.
- the inner beam 1110 may include at least one venting hole 1110h penetrating a side surface of the inner beam 1110 . More specifically, the venting hole 1110h may be a hole formed by removing some of the side surfaces of the inner beam 1110 .
- At least one venting hole 1110h may be positioned between the pair of battery modules 100 .
- at least one venting hole 1110h may be formed at a spaced position between the pair of battery modules 100.
- the location of the venting hole 1110h is not limited thereto, and any location where gas and flame generated from the battery module 100 can be easily discharged may be included in the present embodiment.
- the venting hole 1110h may have a circular shape.
- the shape of the venting hole 1110h is not limited thereto, and any shape in which gas and flame generated from the battery module 100 can be easily discharged may be included in the present embodiment.
- venting hole 1110h may be arranged side by side in the longitudinal direction of the inner beam 1110 .
- the arrangement of the venting holes 1110h is not limited thereto, and any arrangement in which gas and flame generated from the battery module 100 can be easily discharged may be included in the present embodiment.
- the generated high-temperature gas and/or flame is emitted from the internal beam 1110 It may flow into the inner beam 1110 according to the pressure difference through the venting hole 1110h formed therein. Thereafter, the high-temperature gas and/or flame introduced into the inner beam 1110 may be introduced into the side frame 1150 through the first connection portion 1130a and along the first path d1 due to a pressure difference.
- the inner beam 1110 may form a venting path, and high-temperature gas and/or flame moving along the venting path may contact the inner surface of the inner beam 1110 and be cooled.
- the side frame 1150 includes a pair of first side beams 1150a extending along the longitudinal direction (x-axis direction) of the lower pack frame 1100 and the width of the lower pack frame 1100. It may include a pair of second side beams 1150b extending along the direction (y-axis direction).
- the pair of first side beams 1150a and the pair of second side beams 1150b may be integrated with each other or combined with each other by welding or the like.
- first side beam 1150a and the pair of second side beams 1150b may be in communication with each other.
- first side beam 1150a and the second side beam 1150b include a second connection portion 1130b (FIG. 5) communicating with each other.
- the second connection portion 1130b (FIG. 5) may be formed on at least a portion of surfaces where the first side beam 1150a and the second side beam 1150b come into contact with each other.
- the inner beam 1110 may extend along the length direction of the second side beam 1150b. More specifically, at least one first connection part 1130a (FIG. 4) may be located on a surface where the end of the inner beam 1110 and the inner surface of the first side beam 1150a come into contact. More specifically, the first connection portion 1130a (FIG. 4) may be formed on at least a portion of a surface where the end of the inner beam 1110 and the inner surface of the first side beam 1150a come into contact.
- At least one venting part 1700 may be formed on one second side beam 1150b of the pair of second side beams 1150b.
- the venting part 1700 may be a member that opens or closes or ruptures according to internal pressure of the battery pack 1000 .
- the venting part 1700 is connected to the inside of the battery pack 1000, is open to the outside only when the pressure inside the battery pack 1000 is higher than a certain pressure, and is closed when the pressure is lower than a certain pressure. It may consist of members.
- the venting part 1700 may be a relief valve.
- the venting part 1700 is not limited thereto, and any member that can be opened and closed according to the pressure of the battery pack 1000 may be included in the present embodiment.
- the venting part 1700 may burst when the pressure inside the battery pack 1000 reaches a certain level or higher. More specifically, the venting unit 1700 may include a rupture surface (not shown) configured to rupture when the pressure of the introduced gas exceeds a certain pressure, such as a rupture disc.
- a rupture surface not shown
- the structure of the venting part 1700 is not limited thereto, and any structure that communicates with the side frame 1150 to discharge internal gas to the outside may be included in the present embodiment.
- the high-temperature gas and/or flame introduced into the first side beam 1150a of the side frame 1150 passes through the second connection part 1130b (FIG. 5), and the second side beam 1150b ) can be moved. That is, the high-temperature gas and/or flame introduced into the side frame 1150 moves inside the side frame 1150 due to the pressure difference along the second path d2, and finally the side where the venting part 1700 is located. It may be discharged from the frame 1150 to the outside through the venting part 1700 .
- the side frame 1150 may form a venting path, and the high-temperature gas and/or flame moving along the venting path may come into contact with the inner surface of the side frame 1150 and be cooled. ), the cooled gas and/or flame can be safely discharged to the outside.
- the side frame 1150 may include a blocking portion 1160 positioned on one of the pair of first side beams 1150a.
- the blocking portion 1160 may refer to a portion in which the inside of the first side beam 1150a is closed.
- the blocking portion 1160 may refer to a portion in which the inside of the first side beam 1150a is blocked and thus gas and/or flame moving inside the first side beam 1150a cannot move.
- the blocking part 1160 may close one of the second connection parts 1130b (FIG. 5) formed on the surface where the first side beam 1150a and the second side beam 1150b come into contact with each other.
- the blocking part 1160 is a high-temperature gas and/or flame that may be introduced through the second connection part 1130b (FIG. 5) located between the first side beam 1150a and the second side beam 1150b. can block
- the generated high-temperature gas and / or flame is generated in the inner beam 1110 and the side frame 1150 It can flow into the venting path formed by, but the blocking portion 1160 is formed on the first side beam 1150a, so that the movement direction of the high-temperature gas and / or flame can be limited and induced.
- the high-temperature gas and/or flame moving toward the blocking portion 1160 formed on the first side beam 1150a is limited in movement by the blocking portion 1160 and moves in the opposite direction. can be induced.
- the high-temperature gas and/or flame can extend the time the high-temperature gas and/or flame stays in the venting path by the blocking unit 1160, and thus the cooling performance of the gas and/or flame is improved. can be improved
- the blocking part 1160 is located on one of the first side beams 1150a of the pair of first side beams 1150a, but the side frame 1150 has a second side surface on which the venting part 1700 is formed. It may be positioned adjacent to beam 1150b. More specifically, the blocking portion 1160 closes the second connection portion 1130b (FIG. 5) positioned adjacent to the second side beam 1150b on which the venting portion 1700 is formed among the second connection portions 1130b (FIG. 5). can do.
- the high-temperature gas and/or flame introduced through the venting hole 1100h moves toward the first side beam 1150a where the blocking part 1160 is located, but does not reach the blocking part 1160.
- the movement is restricted by , and the hot gas and/or flame moves counterclockwise along the side frame 1150 .
- the moving direction of the high-temperature gas and/or flame may be in the opposite direction depending on the position of the blocking part 1160 . That is, in this embodiment, the high-temperature gas and/or flame is located adjacent to the venting unit 1700 so that the high-temperature gas and/or flame is blocked by the blocking unit 1160, and the time required for the high-temperature gas and/or flame to reach the venting unit 1700 can be extended. In other words, according to this embodiment, the time during which the high-temperature gas and/or flame stays in the venting path can be further extended, and accordingly, the cooling performance of the gas and/or flame can be further improved.
- FIG. 4 is a cross-sectional view taken along the cutting line A-A′ of FIG. 2 .
- 5 is a cross-sectional view taken along the cutting line BB′ of FIG. 2 .
- 6 is a cross-sectional view taken along the line C-C′ of FIG. 2 .
- the inner beam 1110 includes a first inner partition 1111 and a second inner partition 1115 extending along the length direction of the inner beam 1110 . More specifically, the second internal barrier rib 1115 may be positioned on the first internal barrier rib 1111 . Here, the first internal barrier rib 1111 and the second internal barrier rib 1115 may be spaced apart from each other.
- At least one venting hole 1110h may be positioned between the first inner partition wall 1111 and the bottom surface of the inner beam 1110. More specifically, the at least one venting hole 1110h may be located at the center between the first inner partition wall 1111 and the bottom surface of the inner beam 1110 .
- both ends of the first inner partition wall 1111 may be spaced apart from both sides of the inner beam 1110, respectively.
- high-temperature gas and/or flame may move between both ends of the first inner partition 1111 and both sides of the inner beam 1110 along the first path d1.
- both ends of the second inner partition wall 1115 are in contact with the side surfaces of the inner beam 1110, respectively, but the center of the second inner partition wall 1115 may be open toward the first inner partition wall 1111.
- the high-temperature gas and/or flame moving between both ends of the first inner partition wall 1111 and both sides of the inner beam 1110 travels along the first path d1 toward the center of the second inner partition wall 1115. can move along
- first connection portion 1130a may be formed on both sides of the inner beam 1110 positioned between both ends of the second inner partition wall 1115 and the upper surface of the inner beam 1110, respectively.
- the high-temperature gas and/or flame moving between the second inner partition walls 1115 moves between the second inner partition walls 1115 and the top surface of the inner beam 1110, and the first path along the first path d1. It may flow into the first side beam 1150a through the connecting portion 1130a.
- the high-temperature gas and/or flame introduced into the inner beam 1110 through the venting hole 1100h is directed to the first inner partition wall 1111 and the second inner partition wall 1115. moves through a relatively long venting path. That is, in the inner beam 1110, the time during which the high-temperature gas and/or flame stays in the venting path may be longer due to the relatively long venting path, and thus the cooling performance of the gas and/or flame may be improved. can be improved
- the inner beam 1110 replaces the first inner partition wall 1111 and the second inner partition wall 1115, and a member such as a metal pipe or a corrugated pipe is inserted into the inner beam 1110 in a zigzag manner.
- a member such as a metal pipe or a corrugated pipe is inserted into the inner beam 1110 in a zigzag manner.
- the first side beam 1150a includes a first side partition wall 1151 and a second side partition wall 1155 extending along the length direction of the first side beam 1150a. includes More specifically, the second side partition 1155 may be positioned on the first side partition 1151 .
- the first internal barrier rib 1111 and the second internal barrier rib 1115 may be spaced apart from each other.
- the first connection portion between the first side partition wall 1151 and the second side partition wall 1155 (1130a) may be located.
- both ends of the first side partition wall 1151 may contact both sides of the first side beam 1150a.
- the first connection part 1130a may be located in That is, the high-temperature gas and/or flame introduced into the inner beam 1110 is introduced between the first side partition wall 1151 and the second side partition wall 1155 through the first connection part 1130a, and is introduced into the second path d2 ) can move hot gases and/or flames.
- both ends of the second side partition wall 1155 are in contact with both sides of the first side beam 1150a, but the center of the second side partition wall 1155 is open toward the first side partition wall 1150a.
- the high-temperature gas and/or flame moving between the first side partition 1151 and the second side partition 1155 may move along the second path d2 towards the center of the second side partition 1155. there is.
- the second connection portion 1130b may be formed on both sides of the first side beam 1150a positioned between the second side partition wall 1155 and the top surface of the first side beam 1150a.
- the high-temperature gas and/or flame that has moved between the second side partition walls 1155 moves between the second side partition walls 1155 and the upper surface of the first side beam 1150a, along the second path d2. It may flow into the second side beam 1150b through the second connection part 1130b.
- the blocking part 1160 is connected to the first side beam 1150a.
- One of the second connection parts 1130b formed on the surface where the second side beams 1150b come into contact with each other may be closed. More preferably, as shown in FIG. 5, the blocking part 1160 is located adjacent to the second side beam 1150b on which the venting part 1700 is formed among the second connecting parts 1130b (1130b, FIG. 5). ) can be closed.
- the blocking part 1160 blocks the second connection part 1130b. may not be closed.
- the high-temperature gas and/or flame introduced along the second connection part 2130b is It may move along the upper surface of the first side beam 2150a and the second side partition wall 2155 along the second path d2 and move toward another second connection portion 2130b.
- the high-temperature gas and/or flame introduced into the first side beam 1150a through the first connection portion 1130a passes through the first side partition wall 1151 and the second side beam 1150a. It moves through a venting path formed relatively long by the side partition wall 1155 . That is, a relatively long venting path of the high-temperature gas and/or flame in the side frame 1150 may further extend the time during which the high-temperature gas and/or flame stay in the venting path, and thus the cooling performance of the gas and/or flame may be more effectively can be improved
- the first side beam 1150a replaces the first side partition wall 1151 and the second side partition wall 1155, and a member such as a metal tube or a corrugated tube is formed in the first side beam 1150a. It may be inserted in a zigzag pattern. Accordingly, the length of the venting path formed inside the first side beam 1150a may be further extended, and thus cooling performance of gas and/or flame may be more effectively improved.
- FIG. 7 is a view showing a venting valve inserted into a venting hole included in the battery pack of FIG. 1 .
- a venting valve 800 may be inserted into the venting hole 1110h.
- the venting valve 800 is connected to the inside of the venting hole 1110h, but is closed when the pressure in the battery pack 1000 is below a certain pressure, as shown in FIG. 6(a), and FIG. 6(b) ), it may be composed of a member that opens toward the outside only when a certain pressure or more is reached.
- the venting valve 800 may be a relief valve.
- the venting valve 800 is not limited thereto, and any member that can be opened and closed according to the pressure of the battery pack 1000 may be included in the present embodiment.
- the venting valve 800 is inserted into the venting hole 1110h, so that the venting hole 1110h is closed when the battery module 100 operates normally. Inflow of oxygen can be blocked, and when an ignition phenomenon occurs in the battery module 100, the venting hole 1110h is opened so that high-temperature gas and/or flame can be effectively discharged.
- FIG. 8 is a cross-sectional view of a side frame or an inner beam included in the battery pack of FIG. 1 .
- the inside of the inner beam 1110 and the side frame 1150 have a tubular shape, but as shown in FIG. 7 (a), a plurality of Grooves may be formed or protrusions may be formed as shown in FIG. 7(b).
- the internal shapes of the inner beam 1110 and the side frame 1150 are not limited thereto, and may be included in the present embodiment as long as the shape increases the contact area with high-temperature gas and/or flame.
- the inner beam 1110 and the side frame 1150 when the inside of the inner beam 1110 and the side frame 1150 have a predetermined shape as shown in FIG. 8, the inner beam 1110 and the side frame 1150 ) The contact area between the inside and the hot gas and / or flame can be increased, so that the hot gas and / or flame can be more effectively cooled by the inner surface of the side frame 1150 of the inner beam 1110.
- the battery pack according to this embodiment may be described in almost the same way as the battery pack 1000 described above, with respect to the inner beam 2110 and the side frame 2150 included in the lower pack frame 2100 A description will be given focusing on the parts that differ from the battery pack 1000 .
- FIG. 9 is a view showing a gas discharge path based on the top surface of a battery pack according to another embodiment of the present invention.
- 10 is a cross-sectional view taken along the cutting line A-A′ of FIG. 2 .
- 11 is a cross-sectional view taken along the cutting line BB′ of FIG. 2 .
- 12 is a cross-sectional view taken along the line C-C′ in FIG. 2 .
- one end of the first inner partition 2111 is in contact with one side of the inner beam 2110, but the first inner Opposite sides of the inner beam 2110 may be spaced apart from each other at the other end of the partition wall 2115 .
- high-temperature gas and/or flame may move between the other end of the first inner partition 2111 and the opposite side of the inner beam 2110 along the first path d1.
- one end of the second inner partition 2115 is in contact with the opposite side of the inner beam 2111, but the other end of the second inner partition 2115 is one end of the inner beam 2111. It may be spaced apart from the side and each other. In other words, the high-temperature gas and/or flame moving between the other end of the first inner partition 2111 and the opposite side of the inner beam 2110 is transferred between one end of the second inner partition 2115 and the inner beam 2110. You can move between one side.
- the structure of the internal beam 2110 is not limited thereto, and at least one barrier rib may be inserted between the first internal barrier rib 2111 and the second internal barrier rib 2115 .
- the first connection portion 2130a is formed on the opposite side of the inner beam 2111, One side of beam 2111 may be closed.
- the high-temperature gas and/or flame moving between one end of the second inner partition 2115 and one side of the inner beam 2110 passes between the second inner partition 2115 and the upper surface of the inner beam 2110. It may be moved and introduced into the first side beam 2150a through the first connection part 2130a located on the opposite side of the inner beam 2111 along the first path d1.
- the high-temperature gas and/or flame introduced into the inner beam 2110 through the venting hole 2100h is directed to the first inner partition wall 2111 and the second inner partition wall 2115. It moves through the venting path formed longer by That is, in the inner beam 2110, it is possible to more effectively extend the time during which the high-temperature gas and/or flame stay in the venting path by the longer venting path, and thus the cooling performance of the gas and/or flame is better. can be effectively improved.
- the opposite side of the inner beam 2111 may be positioned adjacent to the first side beam 2150a on which the blocking portion 2115 is formed among the pair of first side beams 2150a.
- the first connection portion 1130a located on the opposite side of the inner beam 2111 is adjacent to the first side beam 2150a on which the blocking portion 2115 is formed among the pair of first side beams 2150a. can be located On the contrary, between one side of the inner beam 2111 and the first side beam 2150a on which the blocking portion 2115 is not formed among the pair of first side beams 2150a is closed, so that high-temperature gas and /or flames cannot move.
- connection portion 2130a is formed on one of the side surfaces of the inner beam 2110 and the other one is closed, thereby inducing the venting direction of the hot gas and/or flame in one direction.
- the moving direction of the high-temperature gas and/or flame from the inner beam 2110 toward the first side beam 2150a may be induced in one direction along the first path d1.
- the high-temperature gas and/or flame moving from the inner beam 2110 to the first side beam 2150a moves toward the first side beam 2150a where the blocking part 2115 is located, but the blocking part Movement is restricted by 2160 and the hot gas and/or flame moves counterclockwise along side frame 1150 .
- the moving direction of the high-temperature gas and/or flame may be in the opposite direction depending on the position of the blocking part 1160 .
- the time for the high-temperature gas and/or flame to reach the venting unit 1700 can be extended, and thus the cooling performance of the gas and/or flame can be more effectively improved. can be improved
- one end of the second side partition 2155 is the first side beam 2150a.
- the other end of the second side partition wall 2155 may be spaced apart from the other side of the first side beam 2150a.
- the high-temperature gas and/or flame moving between the first side partition 2151 and the second side partition 2155 is directed to the other end of the second side partition 1155 and the other side of the first side beam 2150a. It can move along the second path d2 between them.
- the second connection part 2130b is the second side partition wall 2155 It is formed on both sides of the first side beam 2150a located between the end of and the upper surface of the first side beam 2150a, respectively, and the blocking portion 2160 is adjacent to the other side of the first side beam 2150a.
- 2 connection part 2130b can be closed.
- the high-temperature gas and/or flame moving between the other end of the second side partition 2155 and the other side of the first side beam 2150a is transmitted through the second side partition 2155 and the first side beam 2150a. It moves between the upper surfaces of and may be introduced into the second side beam 2150b through the second connection part 2130b along the second path d2.
- the first side partition wall 2151 and the second side partition wall ( Both ends of 2155 may contact both sides of the first side beam 2150a, respectively.
- the high-temperature gas and/or flame introduced along the second connection part 2130b is It may move along the upper surface of the first side beam 2150a and the second side partition wall 2155 .
- the structure of the side beam 2150a in which the blocking portion 2160 is not located among the pair of first side beams 2150a is not limited thereto, and the second side partition wall 2155 is omitted or the second side beam 2155 is omitted.
- a part of the side partition wall 2155 may have a structure that is open toward the first side partition wall 2151 .
- the connecting portion 2130a may not be formed between them.
- the first side beam 2150a where the blocking part 2700 is located among the pair of first side beams 2150a and the inner beam 2110 come into contact with each other.
- high-temperature gas and/or flame may be introduced through the first connection portion 2130a, so that the venting direction of the high-temperature gas and/or flame may be induced in one direction. That is, as shown in FIG. 9 , the high-temperature gas and/or flame moving from the inner beam 2110 to the first side beam 2150a moves toward the first side beam 2150a where the blocking part 2115 is located.
- the movement is restricted by the blocking part 2160, and the high-temperature gas and/or flame moves counterclockwise along the side frame 2150.
- the moving direction of the high-temperature gas and/or flame may be in the opposite direction depending on the location of the blocking part 2160.
- the time for the high-temperature gas and/or flame to reach the venting unit 2700 that is, the time to stay in the venting path can be extended, and thus the cooling performance of the gas and/or flame can be more effectively improved. can be improved
- a device includes the battery pack described above.
- Such a device may be applied to means of transportation such as an electric bicycle, an electric vehicle, or a hybrid vehicle, but the present invention is not limited thereto and is applicable to various devices capable of using a battery module and a battery pack including the battery module, which is also applicable to the present invention. Belongs to the scope of the right of invention.
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Abstract
Description
Claims (19)
- 복수의 전지 모듈이 장착되어 있는 하부 팩 프레임; 및상기 전지 모듈의 상부에 위치하는 상부 팩 프레임을 포함하고,상기 하부 팩 프레임의 바닥면에 상기 전지 모듈에서 발생한 가스가 이동하는 벤팅 경로가 되는 적어도 둘의 내부 빔 및 측면 프레임이 형성되어 있고,상기 측면 프레임은 상기 하부 팩 프레임의 바닥면의 가장자리를 따라 연장되어 있고,상기 적어도 둘의 내부 빔은 서로 이격되어 있고,상기 내부 빔의 단부와 상기 측면 프레임의 내면이 서로 접하되, 상기 내부 빔의 단부와 상기 측면 프레임의 내면이 서로 연통하는 적어도 하나의 제1 연결부가 형성되어 있고,상기 내부 빔은 상기 내부 빔의 측면을 관통하는 적어도 하나의 벤팅홀을 포함하는 전지 팩.
- 제1항에서,상기 복수의 전지 모듈은 상기 측면 프레임과 상기 적어도 둘의 내부 빔에 의해 서로 구획되는 전지 팩.
- 제2항에서,상기 적어도 둘의 내부 빔 중 서로 인접하게 위치하는 한 쌍의 내부 빔들 과 상기 측면 프레임 사이에 한 쌍의 전지 모듈이 배치되어 있는 전지 팩.
- 제3항에서,상기 적어도 하나의 벤팅홀은 상기 한 쌍의 전지 모듈 사이에 위치하는 전지 팩.
- 제1항에서,상기 측면 프레임은 상기 하부 팩 프레임의 길이 방향을 따라 연장되어 있는 한 쌍의 제1 측면 빔과 상기 하부 팩 프레임의 폭 방향을 따라 연장되어 있는 한 쌍의 제2 측면 빔을 포함하는 전지 팩.
- 제5항에서,상기 내부 빔은 상기 제2 측면 빔의 길이 방향을 따라 연장되어 있고,상기 내부 빔의 단부와 상기 제1 측면 빔의 내면이 접하는 면에 상기 제1 연결부가 위치하는 전지 팩.
- 제5항에서,상기 제1 측면 빔과 상기 제2 측면 빔이 서로 접하는 면이 연통되어 있는 제2 연결부를 포함하는 전지 팩.
- 제7항에서,상기 한 쌍의 제2 측면 빔 중 하나의 제2 측면 빔에 적어도 하나의 벤팅부가 형성되어 있는 전지 팩.
- 제8항에서,상기 측면 프레임은 상기 한 쌍의 제1 측면 빔 중 하나의 제1 측면 빔에 위치하되, 상기 제1 측면 빔의 내부가 폐쇄되어 있는 차단부를 포함하고,상기 차단부는 상기 벤팅부가 형성된 제2 측면 빔과 인접하게 위치하는 상기 제2 연결부를 폐쇄하는 전지 팩.
- 제9항에서,상기 내부 빔은 상기 내부 빔의 길이 방향을 따라 연장되어 있는 제1 내부격벽 및 제2 내부 격벽을 포함하고,상기 제1 내부 격벽 상에 상기 제2 내부 격벽이 위치하고,상기 제1 내부 격벽과 상기 내부 빔의 바닥면 사이에 상기 적어도 하나의 벤팅홀이 위치하는, 전지 팩.
- 제10항에서,상기 제1 내부 격벽의 양 단부는 상기 내부 빔의 양 측면에 각각 이격되어 있고,상기 제2 내부 격벽의 양 단부는 상기 내부 빔의 측면에 각각 접하되, 상기 제2 내부 격벽의 중심부는 상기 제1 내부 격벽을 향해 개방되어 있고,상기 제1 연결부는 상기 제2 내부 격벽의 양 단부와 상기 내부 빔의 상면 사이에 위치하는 상기 내부 빔의 양 측면에 각각 형성되는 전지 팩.
- 제10항에서,상기 제1 내부 격벽의 일 단부는 상기 내부 빔의 일 측면과 접하되, 상기 제1 내부 격벽의 타 단부는 상기 내부 빔의 반대 측면이 서로 이격되어 있고,상기 제2 내부 격벽의 일 단부는 상기 내부 빔의 반대 측면과 접하되, 상기 제2 내부 격벽의 타 단부는 상기 내부 빔의 일 측면과 서로 이격되어 있고,상기 제2 내부 격벽의 단부와 상기 내부 빔의 상면 사이에 위치하는 상기 내부 빔에서, 상기 제1 연결부는 상기 내부 빔의 반대 측면에 형성되되, 상기 내부 빔의 일 측면은 폐쇄되어 있는 전지 팩.
- 제12항에서,상기 내부 빔의 반대 측면은 상기 한 쌍의 제1 측면 빔 중에서 상기 차단부가 형성되어 있는 상기 제1 측면 빔과 인접하게 위치하는 전지 팩.
- 제9항에서,상기 제1 측면 빔은 상기 제1 측면 빔의 길이 방향을 따라 연장되어 있는 제1 측면 격벽 및 제2 측면 격벽을 포함하고,상기 제1 측면 격벽 상에 상기 제2 측면 격벽이 위치하고,상기 제1 측면 격벽의 양 단부는 상기 제1 측면 빔의 양 측면에 각각 접하고,상기 한 쌍의 제1 측면 빔 중 상기 차단부가 위치하는 제1 측면 빔에서, 상기 제1 측면 격벽과 상기 제2 측면 격벽 사이에 상기 제1 연결부가 위치하는, 전지 팩.
- 제14항에서,상기 제2 측면 격벽의 양 단부는 상기 제1 측면 빔의 양 측면에 각각 접하되, 상기 제2 측면 격벽의 중심부는 상기 제1 측면 격벽을 향해 개방되어 있고,상기 제2 연결부는 상기 제2 측면 격벽과 상기 제1 측면 빔의 상면 사이에 위치하는 상기 제1 측면 빔의 양 측면에 각각 형성되는 전지 팩.
- 제14항에서,상기 제2 측면 격벽의 일 단부는 상기 제1 측면 빔의 일 측면에 접하되, 상기 제2 측면 격벽의 타 단부는 상기 제1 측면 빔의 타 측면과 이격되어 있고,상기 한 쌍의 제1 측면 빔 중 상기 차단부가 위치하는 제1 측면 빔에서, 상기 제2 연결부는 상기 제2 측면 격벽의 단부와 상기 제1 측면 빔의 상면 사이에 위치하는 상기 제1 측면 빔의 양 측면에 각각 형성되되, 상기 차단부가 상기 제1 측면 빔의 타 측면에 인접한 상기 제2 연결부를 폐쇄하는 전지 팩.
- 제16항에서,상기 한 쌍의 제1 측면 빔 중 상기 차단부가 위치하지 않는 제1 측면 빔에서, 상기 제1 측면 격벽과 상기 제2 측면 격벽의 양 단부는 각각 상기 제1 측면 빔의 양 측면과 접하는, 전지 팩.
- 제1항에서,상기 벤팅홀에 벤팅 밸브가 삽입되어 있는 전지 팩.
- 제1항에 따른 전지 팩을 포함하는 디바이스.
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JP2023538143A JP2024500910A (ja) | 2021-06-29 | 2022-03-30 | 電池パックおよびこれを含むデバイス |
EP22833361.3A EP4258447A1 (en) | 2021-06-29 | 2022-03-30 | Battery pack and device including same |
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KR20170044473A (ko) * | 2015-10-15 | 2017-04-25 | 주식회사 엘지화학 | 배터리 팩 |
CN110190211A (zh) * | 2018-12-29 | 2019-08-30 | 比亚迪股份有限公司 | 电池托盘、动力电池包及车辆 |
CN209658277U (zh) * | 2019-05-31 | 2019-11-19 | 宁德时代新能源科技股份有限公司 | 电池模组 |
CN210123787U (zh) * | 2019-08-29 | 2020-03-03 | 蜂巢能源科技有限公司 | 电池包和车辆 |
US20200152941A1 (en) * | 2018-11-13 | 2020-05-14 | Rivian Ip Holdings, Llc | Battery cell pack thermal runaway mitigation |
KR20210085132A (ko) | 2019-12-30 | 2021-07-08 | (주)세현하이테크 | 칩제거형절삭공구 |
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KR20170044473A (ko) * | 2015-10-15 | 2017-04-25 | 주식회사 엘지화학 | 배터리 팩 |
US20200152941A1 (en) * | 2018-11-13 | 2020-05-14 | Rivian Ip Holdings, Llc | Battery cell pack thermal runaway mitigation |
CN110190211A (zh) * | 2018-12-29 | 2019-08-30 | 比亚迪股份有限公司 | 电池托盘、动力电池包及车辆 |
CN209658277U (zh) * | 2019-05-31 | 2019-11-19 | 宁德时代新能源科技股份有限公司 | 电池模组 |
CN210123787U (zh) * | 2019-08-29 | 2020-03-03 | 蜂巢能源科技有限公司 | 电池包和车辆 |
KR20210085132A (ko) | 2019-12-30 | 2021-07-08 | (주)세현하이테크 | 칩제거형절삭공구 |
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EP4258447A1 (en) | 2023-10-11 |
JP2024500910A (ja) | 2024-01-10 |
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