WO2021177762A1 - 배터리 랙 및 그것을 포함하는 전력 저장 장치 - Google Patents
배터리 랙 및 그것을 포함하는 전력 저장 장치 Download PDFInfo
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- WO2021177762A1 WO2021177762A1 PCT/KR2021/002712 KR2021002712W WO2021177762A1 WO 2021177762 A1 WO2021177762 A1 WO 2021177762A1 KR 2021002712 W KR2021002712 W KR 2021002712W WO 2021177762 A1 WO2021177762 A1 WO 2021177762A1
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- battery
- rack
- battery pack
- shelf plate
- pack
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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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
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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
- H01M50/204—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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
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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
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/668—Means for preventing spilling of liquid or electrolyte, e.g. when the battery is tilted or turned over
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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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
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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
- H01M2200/00—Safety devices for primary or secondary batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- 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 rack and a power storage device including the same, and more particularly, when a fire or thermal runaway occurs during use, effectively preventing the propagation of fire or heat, and recycling an undamaged battery pack It is about possible battery racks.
- a lithium secondary battery mainly use 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 applied, respectively, are disposed with a separator interposed therebetween, and a casing for sealing and housing the electrode assembly together with an electrolyte, that is, a battery pouch casing.
- secondary batteries have been widely used not only in small devices such as portable electronic devices, but also in medium and large devices such as automobiles and power storage devices.
- a large number of secondary batteries are electrically connected to increase capacity and output.
- a pouch-type secondary battery is widely used in such a medium-to-large device due to the advantage of easy stacking.
- the present invention was created to solve the above problems, and when a fire or thermal runaway occurs during use, it effectively prevents the propagation of fire or heat, and a battery rack capable of recycling an undamaged battery pack. aims to provide
- a plurality of secondary batteries each stacked in one direction, and an internal space accommodating the plurality of secondary batteries is formed, and when the internal temperature rises above a predetermined temperature, a pack housing configured to supply extinguishing liquid to the inside; a plurality of battery packs arranged in a direction; and
- a battery having a storage space for accommodating the plurality of battery packs, a mounting surface inclined at a predetermined angle such that the battery pack is mounted and the height decreases in one direction, and an end in one direction is located below and a rack case provided with a plurality of shelf plates having extension portions protruding further outward than the pack.
- a front frame positioned at the front end of the plurality of battery packs and having a pillar portion configured to support the ground;
- a rear frame positioned at rear ends of the plurality of battery packs and having a pillar portion configured to support the ground;
- a fixing bracket coupled to the shelf plate and inclined at a predetermined angle such that the height of each of the front frame and the rear frame decreases in one direction may be provided.
- the protruding end of the extension of the shelf plate located at the lower end may be located inside the end of the extension portion of the extension portion of the shelf plate located at the upper end.
- an end of the battery pack located at the lower end in one direction may be located inside the end of the battery pack located at the upper end.
- a stopper may be formed on the shelf plate to prevent movement of the mounted battery pack in one of the directions.
- a cover portion extending outwardly from an end of the battery pack may be further provided to flow the extinguishing liquid dropped from the upper shelf plate to the outside.
- the shelf plate may be provided with a guide groove configured to guide the movement of the digestive fluid discharged from the pack housing.
- the shelf plate may be provided with a discharge unit configured to receive the extinguishing liquid dropped from the upper battery pack and flow it to the outside.
- a secondary battery located in a direction opposite to the one direction among the plurality of secondary batteries may include an absorption member configured to absorb the extinguishing liquid.
- the power storage device for achieving the above object includes at least one or more of the battery rack.
- the present invention has a storage space so that a plurality of battery packs can be accommodated, a mounting surface inclined at a predetermined angle so that the battery pack is mounted and the height decreases in one direction, and which
- a rack case provided with a plurality of shelf plates having extended portions having an end in one direction more protruding outward than a battery pack located below, thermal runaway or fire may occur in a specific battery pack among a plurality of battery packs. In this case, it is possible to prevent the extinguishing liquid supplied to a specific battery pack from flowing into the battery pack located below.
- the protruding end of the extension part of the shelf plate located at the lower end is inner than the end of the extension part of the shelf plate located at the upper end.
- an end in one direction of a battery pack located at a relatively lower end is located inside than an end of a battery pack located at a relatively upper end, so that the extinguishing liquid When supplied to this battery pack, it can be configured so that the extinguishing fluid that has escaped to the outside of the pack housing does not flow into the battery pack located at the lower end but falls vertically by gravity. That is, it is possible to avoid contamination of the battery pack by the extinguishing liquid that has fallen from the extension of the upper end in the direction of gravity.
- a guide groove configured to guide the movement of the extinguishing liquid discharged from the pack housing is formed in the shelf plate, thereby controlling the movement of the extinguishing liquid to a specific position of the shelf plate.
- FIG. 1 is a perspective view schematically showing a battery rack according to an embodiment of the present invention.
- Figure 2 is a rear perspective view schematically showing the state of the battery pack as a part of the battery rack according to an embodiment of the present invention.
- FIG. 3 is a perspective view schematically illustrating a state of a cell assembly of a battery pack, which is a part of a battery rack according to an embodiment of the present invention.
- Figure 4 is a rear partial perspective view schematically showing the appearance of some internal components of the rack case of the battery rack according to an embodiment of the present invention.
- Figure 5 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the first embodiment of the present invention.
- Figure 6 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the second embodiment of the present invention.
- Figure 7 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the third embodiment of the present invention.
- Figure 8 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the fourth embodiment of the present invention.
- Figure 9 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the fifth embodiment of the present invention.
- Figure 10 is a rear perspective view schematically showing the appearance of some configurations of the battery rack according to the sixth embodiment of the present invention.
- FIG. 11 is a schematic view schematically showing the appearance of some configurations of the battery rack according to the seventh embodiment of the present invention.
- FIG. 12 is a front view schematically illustrating a state of a power storage device according to an embodiment of the present invention.
- FIG. 1 is a perspective view schematically showing a battery rack according to an embodiment of the present invention.
- Figure 2 is a rear perspective view schematically showing the state of the battery pack as a part of the battery rack according to an embodiment of the present invention.
- Figure 3 is a perspective view schematically showing the state of the cell assembly of the battery pack, which is a part of the battery rack according to an embodiment of the present invention.
- the positive and negative directions of the X axis of FIG. 1 may be a right direction and a left direction.
- the positive and negative directions of the Z-axis of FIG. 1 may be upward and downward directions.
- the positive and negative directions of the Y-axis of FIG. 1 may be a backward direction and a forward direction.
- the battery rack 300 of the present invention includes a plurality of battery packs 200 arranged in a vertical direction, and a rack case 310 .
- the battery pack 200 may include a plurality of secondary batteries 110 each stacked in one direction.
- the secondary battery 110 may be a pouch-type secondary battery 110 .
- the pouch-type secondary battery 110 may include an electrode assembly (not shown), an electrolyte (not shown), and a pouch 116 .
- Each of the secondary batteries 110 when viewed in the F direction (shown in FIG. 1), has two wide surfaces respectively located in the front and rear directions, and sealing parts are located in the upper, lower, left and right directions. It can be arranged in a form erected perpendicular to the. In other words, each secondary battery 110 may be configured in a vertical direction.
- each secondary battery 110 may be configured in a vertical direction.
- the pouch may be configured as a pouch in which a concave accommodating part is formed.
- the electrode assembly and the electrolyte may be accommodated in the accommodating part.
- each pouch includes an outer insulating layer, a metal layer, and an inner adhesive layer, and the inner adhesive layer is adhered to each other on the edge of the pouch, thereby forming a sealing portion.
- terraces may be formed at the ends of the secondary battery 110 in the left and right directions where the positive lead 112 and the negative lead 111 are formed.
- the electrode assembly is an assembly of an electrode plate and a separator coated with an electrode active material, and may be configured in a form in which one or more positive electrode plates and one or more negative electrode plates are disposed with a separator interposed therebetween.
- a positive electrode tab is provided on the positive electrode plate of the electrode assembly, and one or more positive electrode tabs may be connected to the positive electrode lead 112 .
- the positive electrode lead 112 has one end connected to the positive electrode tab and the other end exposed to the outside of the pouch, and the exposed portion is an electrode terminal of the secondary battery 110 , for example, the secondary battery 110 . ) can function as a positive terminal.
- a negative electrode tab is provided on the negative electrode plate of the electrode assembly, and one or more negative electrode tabs may be connected to the negative electrode lead 111 .
- the negative lead 111 has one end connected to the negative electrode tab and the other end exposed to the outside of the pouch, and the exposed portion is an electrode terminal of the secondary battery 110 , for example, the secondary battery 110 . can function as the negative terminal of
- the positive electrode lead 112 and the negative electrode lead 111 are formed at the ends in the left and right directions opposite to each other with respect to the center of the secondary battery 110 .
- the positive lead 112 may be provided at one end (left end) with respect to the center of the secondary battery 110 .
- the negative lead 111 may be provided at the other end (right end) with respect to the center of the secondary battery 110 .
- each secondary battery 110 of the cell assembly 100 may be configured such that a positive electrode lead 112 and a negative electrode lead 111 protrude in the left and right directions.
- directions such as front, back, left, right, up, and down may vary depending on the position of the observer or the placed shape of the object.
- directions such as front, rear, left, right, top, and bottom are separately indicated with reference to the time of viewing in the F direction.
- the positive lead 112 and the negative lead 111 may be configured in a plate shape.
- the positive lead 112 and the negative lead 111 may protrude in a horizontal direction (X direction) in a state in which a wide surface is erected to face the front-rear direction.
- the horizontal direction may mean a direction parallel to the ground when the battery pack 200 is placed on the ground, and may also be referred to as at least one direction on a plane perpendicular to the vertical direction.
- the battery pack 200 according to the present invention is not limited to the aforementioned pouch-type secondary battery 110 , and various secondary batteries 110 known at the time of filing of the present invention may be employed.
- the at least two cell assemblies 100 may be arranged in a front-rear direction (Y-axis direction).
- the battery pack 200 may include at least one bus bar 272 configured to electrically interconnect the plurality of secondary batteries 110 and a bus bar assembly 270 including a bus bar frame 276 .
- the bus bar 272 may include a conductive metal, for example, copper, aluminum, nickel, or the like.
- the bus bar frame 276 may include a plastic material having low electrical conductivity.
- the pack housing 210 may have an internal space to accommodate the cell assembly 100 therein. Specifically, when viewed in the F direction of FIG. 3 , the pack housing 210 may include an upper cover 220 , a base plate 240 , a front cover 260 , and a rear cover 250 . .
- the base plate 240 may have an area larger than the size of the lower surface of the at least two cell assemblies 100 to mount the at least two cell assemblies 100 thereon.
- the base plate 240 may have a plate shape extending in a horizontal direction.
- the upper cover 220 may include an upper wall 224 and a sidewall 226 extending downward from the upper wall 224 .
- the upper wall 224 may have a plate shape extending in a horizontal direction to cover an upper portion of the cell assembly 100 .
- the side wall 226 may have a plate shape extending downward from both ends of the upper wall 224 in the left and right directions to cover both sides of the cell assembly 100 in the left and right directions.
- the sidewall 226 may be coupled to a portion of the base plate 240 .
- the upper cover 220 may include an upper wall 224 having a plate shape extending in front, rear, left and right directions.
- the upper cover 220 may include two sidewalls 226 extending downward from both ends of the upper wall 224 in the left and right directions.
- the lower ends of each of the two sidewalls 226 may be configured to be coupled to both ends of the base plate 240 in the left and right directions.
- the coupling method may be a male-female coupling method or a welding coupling method.
- the front cover 260 may be configured to cover the front of the plurality of secondary batteries 110 .
- the front cover 260 may have a plate having a size larger than the size of the front surfaces of the plurality of secondary batteries 110 .
- the plate may be erected in the vertical direction.
- the rear cover 250 may be configured to cover the rear of the cell assembly 100 .
- the rear cover 250 may have a plate shape having a size larger than the size of the rear surfaces of the plurality of secondary batteries 110 .
- the pack housing 210 may be configured such that an internal space accommodating the plurality of secondary batteries 110 is formed, and when the internal temperature rises above a predetermined temperature, the extinguishing liquid is supplied therein.
- the predetermined temperature may be 300 degrees Celsius or more.
- the rear cover 250 located at the rear of each of the at least two or more battery packs 200 may be provided with an inlet 264 configured to inject the extinguishing liquid.
- the inlet 264 may be positioned to communicate with the refrigerant passage 211 . That is, the inlet 264 may be configured to communicate with the refrigerant passage 211 located on both sides of the cell assembly 100 in the left and right direction.
- the pack housing 210 may be provided with a vent 215 to accommodate the cell assembly 100 therein and to allow external air to flow into and out of the pack housing 210 .
- the air outlet 215 may include an inlet 213 and an outlet 212 .
- Each of the inlet 213 and the outlet 212 may be formed in a portion of the pack housing 210 .
- the inlet 213 may be configured such that external air is introduced into the pack housing 210 .
- the outlet 212 may be formed in a portion of the pack housing 210 and configured to discharge the introduced air to the outside.
- the battery rack 300 may include a fire extinguishing tank 320 , a pipe 330 , and a fire extinguishing valve 340 .
- the fire extinguishing tank 320 may contain a fire extinguishing liquid (not shown) therein.
- the extinguishing liquid may be a concentrated solution of an inorganic salt such as potassium carbonate, chemical foam, air foam, carbon dioxide, or water.
- the fire extinguishing tank 320 may have a compressed gas therein in order to spray the fire extinguishing liquid at an appropriate pressure or move it along the pipe 330 .
- the capacity of the fire extinguishing tank 320 may be 59 L
- the compressed gas may be 8 bar nitrogen
- the fire extinguishing liquid may be 40 L of water.
- water when water is used as the fire extinguishing liquid, it is because when it is sprayed inside the battery pack 200, there is a fire extinguishing cooling effect and a thermal blocking action.
- it is effective in preventing thermal propagation when high-temperature gas and flames are generated due to thermal runaway. Accordingly, it is possible to effectively prevent a fire or thermal runaway from propagating between the plurality of battery packs 200 .
- the pipe 330 may be configured to be connected to supply the fire extinguishing liquid from the fire extinguishing tank 320 to each of the at least two or more battery packs 200 .
- the pipe 330 may be made of a material that is not corroded by water.
- the pipe 330 may be made of stainless steel.
- the pipe 330 may be configured such that one end is connected to a discharge port ( FIGS. 1 and 321 ) of the fire extinguishing tank 320 .
- the other end of the pipe 330 may be configured to be connected to the inlet 264 of the pack housing 210 .
- the fire extinguishing valve 340 is configured to allow the fire extinguishing liquid to flow from the fire extinguishing tank 320 into the battery pack 200 when the internal gas (air) of the battery pack 200 rises above a predetermined temperature. It can be configured to be supplied. That is, the fire extinguishing valve 340 may be an active valve configured to open an outlet so that the fire extinguishing liquid can be injected into the battery pack 200 having a predetermined temperature or higher.
- the active valve may be, for example, a remote controllable control valve, a hydraulic valve, a solenoid valve, or the like.
- Figure 4 is a rear partial perspective view schematically showing the appearance of some internal components of the rack case of the battery rack according to an embodiment of the present invention.
- Figure 5 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the first embodiment of the present invention.
- the rack case 310 may have an open storage space on both sides to accommodate and store each of the plurality of battery packs 200 .
- the rack case 310 may be configured such that the plurality of battery packs 200 are disposed in a vertical direction.
- the rack case 310 may be configured such that the plurality of battery packs 200 are spaced apart from each other at predetermined intervals in the vertical direction.
- the rack case 310 may be provided with a shelf plate 312 configured to mount the battery pack 200 .
- the shelf plate 312 may include a mounting surface 312a and an extension portion 312b. More specifically, the mounting surface 312a may correspond to or have a larger area than the lower surface of the battery pack 200 .
- the mounting surface 312a may be formed to be inclined at a predetermined angle with respect to the horizontal line P1 so that the height decreases in one direction. That is, the shelf plate 312 may be fixed to other components of the rack case 310 so that the height of the mounting surface 312a decreases in one direction. For example, as shown in FIG.
- the shelf plate 312 has a front frame 314 and a rear frame 316 of the rack case 310 such that the mounting surface 312a decreases in height toward the rear.
- Each can be fixed.
- the shelf plate 312 may be inclined at an angle of 1 degree to 3 degrees with respect to the horizontal.
- the extended portion 312b of the shelf plate 312 positioned relatively upward may have an end in either direction protruding further outward than the battery pack 200 positioned downward.
- an extension 312b may be formed at the rear end of the shelf plate 312 .
- the shelf plate 312 is configured such that the extinguishing fluid M1 flows along the slope of the mounting surface 312a of the shelf plate 312 and is discharged to the outside through the extension part 312b in either direction.
- the present invention has a storage space so that the plurality of battery packs 200 can be accommodated, and each of the battery packs 200 is mounted and the height increases in one direction.
- a plurality of shelf plates 312 having a mounting surface 312a inclined at a predetermined angle to be lowered, and an extension 312b having an end in one direction more protruding outward than the battery pack 200 located below. ) by including a rack case 310 provided with, when a thermal runaway or fire occurs in a specific battery pack 200 among a plurality of battery packs, the extinguishing solution M1 supplied to the specific battery pack 200 is located below. It can be prevented from flowing into the located battery pack 200 .
- the remaining battery pack 200 except for the battery pack 200 in which thermal runaway or fire has occurred is also submerged by the extinguishing fluid M1, thereby resolving the problem that it cannot be reused. have.
- the rack case 310 may include a front frame 314 , a rear frame 316 , and a fixing bracket 313 .
- the front frame 314 may be located at the front end of the plurality of battery packs 200 .
- the front frame 314 may include a pillar portion 314p configured to support the ground.
- the rear frame 316 may be located at the rear end of the plurality of battery packs 200 .
- the rear frame 316 may include a pillar portion 316p configured to support the ground.
- the fixing bracket 313 may be coupled to the shelf plate 312 . That is, the shelf plate 312 may be coupled to a lower portion of the fixing bracket 313 .
- the shelf plate 312 and the fixing bracket 313 may be welded to each other.
- the fixing bracket 313 may have a plate shape bent at an angle of approximately 90 degrees in an 'L' shape.
- the fixing bracket 313 is elongated in the front-rear direction. In addition, both ends of the fixing bracket 313 in the front-rear direction may be configured to be bolted to each of the front frame 314 and the rear frame 316 .
- the fixing bracket 313 may be coupled to the pillars 314p and 316p of the front frame 314 and the rear frame 316 , respectively. At this time, the fixing bracket 313 may be fixed to the pillars 314p and 316p of the front frame 314 and the rear frame 316, respectively, so as to be inclined at a predetermined angle such that the height decreases in one direction. have. For example, as shown in FIG. 4 , the front end of the fixing bracket 313 coupled to the front frame 314 is higher than the rear end coupled to the rear frame 316 of the fixing bracket 313 . position can be combined.
- Figure 6 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the second embodiment of the present invention.
- the extension part ( The protruding end of the 312b2 may be located inward than the end of the extension 312b1 of the shelf plate 312A located at the relatively upper end.
- the shelf plate 312A positioned at the lower end of the rack case 310 protrudes backward (Y-axis direction).
- the length of the extended portion 312b1 may be shorter than that of the extension portion 312b2 of the other shelf plate 312A located at the upper end. Accordingly, the protruding end of the extension portion 312b2 of the shelf plate 312A located at the lower end may be located inside the end of the extension portion 312b1 of the shelf plate 312A located at the upper end.
- the rack case 310 is configured such that the protruding length of the extension of the shelf plate 312A gradually decreases toward the bottom based on the extension of the shelf plate 312A on which the battery pack 200 is mounted on the uppermost layer. can do it That is, the protruding length of the extension of the uppermost shelf plate 312A may be the longest, and the protruding length of the extension of the lowermost shelf plate 312A may be the shortest.
- the protruding end of the extension part 312b2 of the shelf plate 312A located at the lower end is located at the relatively upper end. Since it is located inside the end of the extension part 312b1 of the shelf plate 312A, when the extinguishing fluid is supplied, the extinguishing fluid that has escaped to the outside of the pack housing 210 is inclined of the mounting surface 312a of the shelf plate 312A. flows along and is discharged to the outside through the extension part 312b1 in either direction.
- the battery pack 200 located at the lower end can avoid contamination by the extinguishing liquid that has fallen in the gravitational direction from the upper extension 312b1.
- Figure 7 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the third embodiment of the present invention.
- the arrangement positions of the plurality of battery packs (200B1, 200B2) and the plurality of shelf plates (312B1, 312B2) provided in the battery rack of the third embodiment of the present invention are different.
- the plurality of shelf plates 312B1 and 312B2 provided in the battery rack of the third embodiment may have the same extended length as the shelf plates 312A of the second embodiment of FIG. 6 .
- the end of the battery pack 200B2 located at the lower end in either direction is located inside the end of the battery pack 200B1 located at the upper end.
- the protruding lengths of the extension parts 312b of the shelf plate 312 provided in the battery rack of the third embodiment are all the same, but the shelf plate 312 located in the upper direction is higher than the shelf plate 312 located at the bottom. It may be disposed at positions spaced apart by a predetermined distance forward by a predetermined distance.
- the battery pack 200 may be positioned in front of the battery pack 200 positioned at the lower end relative to other battery packs 200B2.
- the battery rack 300 of the present invention can be configured so that the storage position of the battery pack 200 of the rack case 310 is positioned further forward as the battery pack 200 located at the bottom.
- the position of the extension part 312b of the shelf plate 312 may also be positioned to protrude forward gradually from the upper part to the lower part.
- the present invention among the plurality of battery packs 200, the end of the battery pack 200 located at the lower end in one direction is the battery pack located at the upper end ( 200), when the extinguishing fluid is supplied to the battery pack 200, the extinguishing fluid that has escaped to the outside of the pack housing 210 does not flow into the battery pack 200 located at the lower end, but by gravity. It can be configured to fall vertically. That is, it is possible to avoid contamination of the battery pack 200 by the extinguishing liquid that has fallen from the upper extension part 312b in the direction of gravity.
- Figure 8 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the fourth embodiment of the present invention.
- a stopper (312c) for preventing the movement of the mounted battery pack 200 in either direction is to be formed.
- the stopper 312c may be formed to protrude upward from the mounting surface 312a of the shelf plate 312 .
- the stopper 312c may have an upright plate shape to support the rear of the pack housing 210 in the front.
- a stopper 312c that blocks the movement of the mounted battery pack 200 in either direction is formed on the shelf plate 312 , thereby preventing the shelf plate 312 from moving. According to the inclination of the mounting surface 312a, the battery pack 200 is moved in one direction to prevent the rack case 310 from being separated from the outside. Accordingly, it is possible to increase the safety of the battery rack 300 of the present invention.
- Figure 9 is a schematic diagram schematically showing the appearance of some configurations of the battery rack according to the fifth embodiment of the present invention.
- the battery rack according to the fifth embodiment of the present invention when compared with the battery rack 300 according to the first embodiment, the battery pack 200, the pack housing 210 ) may be further provided with a cover portion 317 on the upper portion.
- the cover part 317 may be configured to flow the extinguishing fluid dropped from the upper shelf plate 312 to the outside.
- the cover part 317 may have a plate shape having a width similar to that of the shelf plate 312 . It may have a shape extending outwardly from an end of the battery pack 200 .
- the rear end of the battery pack 200 may include a cover part 317 that protrudes backward from the rear end of the battery pack 200 .
- the battery rack according to the fifth embodiment of the present invention is directed outward from the end of the battery pack 200 so as to flow the extinguishing liquid dropped from the upper shelf plate 312 to the outside.
- the cover part 317 extending to have. Accordingly, it is possible to recycle the battery pack 200 that does not cause thermal runaway or fire.
- Figure 10 is a rear perspective view schematically showing the appearance of some configurations of the battery rack according to the sixth embodiment of the present invention.
- the battery rack according to Embodiment 6 of the present invention when compared with the battery rack of Embodiment 1 of FIG. 4 , is inserted into the shelf plate 312C in the internal direction.
- a guide groove 312h may be further formed.
- the guide groove 312h may be a groove extending linearly along the mounting surface 312a of the shelf plate 312C.
- the extinguishing liquid discharged to the outside of the pack housing 210 moves toward the extension 312b along the guide groove 312h to the shelf. It may be configured to be discharged to the outside through the rear end of the plate (312C).
- a guide groove 312h configured to guide the movement of the extinguishing liquid discharged from the pack housing 210 is formed in the shelf plate 312C, so that the shelf plate 312C is specified. It is possible to control the movement of the digestive juice to the location, so that it is possible to prevent the digestive juice from flowing into the battery pack 200 located at the bottom due to an unexpected flow of the digestive juice. Accordingly, it is possible to prevent contamination by the extinguishing liquid of the battery pack 200 that does not cause thermal runaway or fire. In the present invention, it is possible to recycle the battery pack 200 without thermal runaway or fire.
- the battery rack 300 compared to the battery rack 300 of the first embodiment, receives the extinguishing fluid dropped from the upper battery pack 200 to the outside
- a discharge unit (312p) configured to flow to may be provided.
- the discharge part 312p may have a shape of a conduit extending in an upper diagonal direction and having an open upper part.
- the discharge unit 312p may receive the dropped digestive fluid and induce it to be discharged to one side.
- the extinguishing fluid moved along the guide groove 312h formed in the shelf plate 312C located at the relatively upper end falls by gravity from the rear end of the shelf plate 312C, and then at the lower end. At least a portion of the digestive fluid is received at the discharge part 312p of the shelf plate 312C located at
- the shelf plate 312C is provided with a discharge unit 312p configured to receive the extinguishing liquid dropped from the upper battery pack 200 and flow it to the outside. Contamination of the extinguishing fluid of the battery pack 200 in which runaway or fire has not occurred can be avoided. Accordingly, it is possible to recycle the battery pack 200 that does not cause thermal runaway or fire.
- FIG. 11 is a schematic view schematically showing the appearance of some configurations of the battery rack according to the seventh embodiment of the present invention.
- the absorbent member 319 may be further included therein.
- the absorbent member 319 may be configured to absorb the digestive fluid (M1 in FIG. 5 ).
- the absorbent member 319 may be a sponge.
- the absorbent member 319 may include a super absorbent fiber formed by spinning a super absorbent polymer into a net shape.
- the superabsorbent polymer may be configured to absorb digestive juices (water) weighing about 500 to 1,000 times its own weight.
- the superabsorbent polymer may be a product of LG Chem's superabsorbent polymer.
- the absorbent member 319 may be manufactured by collectively polymerizing acrylic acid and methyl acrylate in water as raw materials, extracting the polymerized polymer and spinning it in a net form.
- the absorbing member 319 may be interposed between the secondary batteries 110 located in the opposite direction to the one direction among the plurality of secondary batteries 110 .
- the shelf plate 312 is inclined to the rear (Y-axis direction)
- the extinguishing liquid inside the pack housing 210 is the rear of the pack housing 210 . can be filled from
- the level of the extinguishing liquid may be lower than that of the rear portion of the inside of the pack housing 210 at the front of the pack housing 210 . . Accordingly, by using the absorbing member 319 , it is possible to sufficiently supply the extinguishing liquid between the plurality of secondary batteries 110 . Cooling or thermal cut-off can be effectively achieved.
- the battery pack 200D is configured to absorb the digestive fluid in the secondary battery 110 located in the opposite direction to the one direction among the plurality of secondary batteries 110 . Since the member 319 is provided, it can be supplemented so that the extinguishing liquid can be distributed inside the pack housing 210 even when the battery pack 200D is disposed at an angle. Accordingly, when thermal runaway or fire occurs in the secondary battery 110 located in the opposite direction to the one direction of the pack housing 210, a fire extinguishing liquid is supplied to effectively prevent thermal runaway through fire suppression or thermal cutoff. can
- FIG. 12 is a front view schematically illustrating a state of a power storage device according to an embodiment of the present invention.
- the battery rack 300 may further include other components such as a battery management system (BMS, 350) inside or outside the rack case 310 .
- BMS battery management system
- the power storage device 600 again may include at least two or more of the battery rack 300 .
- the two or more battery racks 300 may be arranged to be arranged in one direction.
- the power storage device 600 may be configured such that three battery racks 300 each having a rack case 310 are arranged in one direction.
- the power storage device 600 may be provided with a separate battery management system 350 that can control charging and discharging in each of the three battery racks (300).
- the power storage device 600 may include a binding member configured to form a coupling between the adjacent rack case (310).
- rack case 312 shelf plate
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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)
- Health & Medical Sciences (AREA)
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- Business, Economics & Management (AREA)
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- Secondary Cells (AREA)
Abstract
Description
Claims (10)
- 각각이 일방향으로 적층된 복수의 이차전지, 및 상기 복수의 이차전지를 수납하는 내부 공간이 형성되고 내부 온도가 소정 온도 이상으로 상승할 경우, 소화액이 내부로 공급되도록 구성된 팩 하우징을 포함하고, 상하 방향으로 배열된 복수의 배터리 팩; 및상기 복수의 배터리 팩의 수납이 가능하도록 수납 공간을 가지고, 각각이 상기 배터리 팩이 탑재되고 어느 한 방향으로 갈수록 높이가 낮아지도록 소정 각도로 기울어진 탑재면과, 상기 어느 한 방향의 단부가 하방에 위치한 배터리 팩 보다 외측 방향으로 더 돌출된 연장부를 구비한 복수의 선반 플레이트가 구비된 랙 케이스를 포함하는 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 랙 케이스는,상기 복수의 배터리 팩의 전단에 위치하고 지면을 지지하도록 구성된 기둥부를 구비한 전방 프레임;상기 복수의 배터리 팩의 후단에 위치하고 지면을 지지하도록 구성된 기둥부를 구비한 후방 프레임; 및상기 선반 플레이트와 결합되고 상기 전방 프레임과 상기 후방 프레임 각각의 기둥부에 상기 어느 한 방향으로 갈수록 높이가 낮아지도록 소정 각도로 기울어지게 결합된 고정 브라켓을 구비한 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 복수의 선반 플레이트 중, 상대적으로 하단에 위치한 선반 플레이트의 연장부의 돌출된 단부는 상대적으로 상단에 위치한 선반 플레이트의 연장부의 단부보다 내측에 위치된 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 복수의 배터리 팩 중, 상대적으로 하단에 위치한 배터리 팩의 상기 어느 한 방향의 단부는 상대적으로 상단에 위치한 배터리 팩의 단부 보다 내측에 위치된 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 선반 플레이트에는 상기 탑재된 배터리 팩의 상기 어느 한 방향의 이동을 저지하는 스토퍼가 형성된 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 배터리 팩은,상단의 선반 플레이트로부터 낙하된 소화액을 외부로 흘려 보내도록 상기 배터리 팩의 단부로부터 외측 방향으로 연장된 덮개부가 더 구비된 것을 특징으로 하는 배터리 랙.
- 제1항에 있어서,상기 선반 플레이트는 상기 팩 하우징으로부터 배출된 소화액의 이동을 가이드 하도록 구성된 가이드 홈이 형성된 것을 특징으로 하는 배터리 랙.
- 제7항에 있어서,상기 선반 플레이트는 상방의 배터리 팩으로부터 낙하된 소화액을 받아내 외부로 흘려 보내도록 구성된 배출부가 구비된 것을 특징으로 하는 배터리 랙.
- 제8항에 있어서,상기 배터리 팩은,상기 복수의 이차전지 중, 상기 어느 한 방향의 반대 방향에 위치한 이차전지에는 상기 소화액을 흡수하도록 구성된 흡수 부재가 구비된 것을 특징으로 하는 배터리 랙.
- 제1항 내지 제9항 중 어느 한 항에 따른 배터리 랙을 적어도 하나 이상 포함하는 전력 저장 장치.
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JP2021578110A JP7214019B2 (ja) | 2020-03-04 | 2021-03-04 | バッテリーラック及びそれを含む電力貯蔵装置 |
US17/790,669 US20230040296A1 (en) | 2020-03-04 | 2021-03-04 | Battery rack and energy storage system comprising the same |
EP21764281.8A EP4024581A4 (en) | 2020-03-04 | 2021-03-04 | BATTERY FRAME AND ENERGY STORAGE DEVICE COMPRISING THE SAME |
AU2021231265A AU2021231265A1 (en) | 2020-03-04 | 2021-03-04 | Battery rack and energy storage system comprising the same |
CN202180005075.7A CN114303280A (zh) | 2020-03-04 | 2021-03-04 | 电池架和包括该电池架的能量存储装置 |
Applications Claiming Priority (2)
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KR1020200027372A KR102668862B1 (ko) | 2020-03-04 | 2020-03-04 | 배터리 랙 및 그것을 포함하는 전력 저장 시스템 |
KR10-2020-0027372 | 2020-03-04 |
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WO2021177762A1 true WO2021177762A1 (ko) | 2021-09-10 |
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US (1) | US20230040296A1 (ko) |
EP (1) | EP4024581A4 (ko) |
JP (1) | JP7214019B2 (ko) |
KR (1) | KR102668862B1 (ko) |
CN (1) | CN114303280A (ko) |
AU (1) | AU2021231265A1 (ko) |
WO (1) | WO2021177762A1 (ko) |
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WO2023214744A1 (ko) * | 2022-05-02 | 2023-11-09 | 주식회사 엘지에너지솔루션 | 에너지 저장 시스템 |
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JP2022539404A (ja) | 2022-09-08 |
AU2021231265A1 (en) | 2022-04-21 |
US20230040296A1 (en) | 2023-02-09 |
EP4024581A4 (en) | 2023-04-19 |
CN114303280A (zh) | 2022-04-08 |
KR102668862B1 (ko) | 2024-05-22 |
EP4024581A1 (en) | 2022-07-06 |
KR20210112164A (ko) | 2021-09-14 |
JP7214019B2 (ja) | 2023-01-27 |
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