WO2023128576A1 - 배터리 팩, 그리고 이를 포함하는 ess 및 자동차 - Google Patents
배터리 팩, 그리고 이를 포함하는 ess 및 자동차 Download PDFInfo
- Publication number
- WO2023128576A1 WO2023128576A1 PCT/KR2022/021439 KR2022021439W WO2023128576A1 WO 2023128576 A1 WO2023128576 A1 WO 2023128576A1 KR 2022021439 W KR2022021439 W KR 2022021439W WO 2023128576 A1 WO2023128576 A1 WO 2023128576A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- cover frame
- battery
- venting gas
- cover
- Prior art date
Links
- 238000013022 venting Methods 0.000 claims abstract description 99
- 238000002844 melting Methods 0.000 claims description 33
- 230000008018 melting Effects 0.000 claims description 33
- 238000005192 partition Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 66
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 239000000463 material Substances 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 238000004146 energy storage Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
-
- 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the 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
-
- 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
-
- 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
-
- 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
- H01M50/342—Non-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
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
-
- 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
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- 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
-
- 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, an energy storage system (ESS) including the battery pack, and a vehicle.
- ESS energy storage system
- a battery pack applied to devices such as an energy storage system (ESS) and an electric vehicle may be manufactured in a form including a plurality of battery modules to which lithium secondary batteries capable of realizing high output and high capacity are applied.
- the number of lithium secondary batteries included in one battery module can be increased to satisfy the output characteristics of battery packs applied to devices that require high output and large capacity, such as energy storage systems and electric vehicles, and to realize high capacity. and the number of battery modules included in one battery pack may be increased.
- a fire occurring in a battery pack starts from an abnormal temperature increase and internal gas generation of a lithium secondary battery disposed inside the battery module.
- the temperature of the lithium secondary battery rises abnormally and the internal pressure of the lithium secondary battery rises above a certain level due to the generation of internal gas, venting occurs in the lithium secondary battery, and this causes the outside of the lithium secondary battery to A high-temperature gas is ejected, and a high-temperature spark containing an electrode active material and aluminum particles is ejected.
- these hot gases and sparks come into contact with oxygen, a fire may occur.
- the situation in which the high-temperature venting gas and high-temperature spark generated by the occurrence of a thermal event come into contact with a large amount of oxygen occurs when the venting gas generated inside the battery pack quickly escapes to the outside at high pressure. easy. That is, when the pressure inside the battery pack is momentarily very high due to the venting of the secondary battery due to the thermal event, and then the venting gas is quickly discharged to the outside, the internal pressure is greatly reduced within a short time, and rather, a large amount of oxygen is released from the outside to the inside. can flow into At this time, a fire may occur as the high-temperature venting gas remaining inside the battery pack, a spark material, and a large amount of oxygen meet.
- the present invention has been devised in consideration of the above-described problems, and in discharging the venting gas generated during a thermal event, the venting gas is discharged at an appropriate speed despite a high venting pressure, thereby minimizing or preventing the inflow of oxygen from the outside. to do for the purpose of
- a battery pack according to an embodiment of the present invention for solving the above object is a module assembly including a plurality of battery modules disposed along a first direction; a vent channel disposed on one surface of the module assembly and configured to communicate with each of the plurality of battery modules; and a discharge delay member provided in the vent channel and configured to delay discharge of venting gas generated from at least some of the plurality of battery modules and introduced into the vent channel.
- a plurality of discharge delay members may be provided, and the plurality of discharge delay members may be disposed along the first direction.
- the discharge delay member may be configured to be melted by the venting gas.
- Each of the plurality of battery modules may include an outlet through which venting gas therein may be discharged, and the vent channel may include a plurality of inlets formed at positions corresponding to the respective outlets.
- the battery pack may include a flow path stopper configured to cover at least one of the outlet and the inlet and be melted by the venting gas.
- the space inside the vent channel may include a plurality of partitioned spaces configured to be isolated from each other by the discharge delay member, and each of the plurality of partitioned spaces may communicate with at least one battery module.
- Each of the plurality of battery modules includes a cell assembly including a plurality of battery cells having electrode leads; a module housing configured to accommodate the cell assembly and having at least one side open; and a cover frame having a lead slit configured to pass the electrode lead and configured to cover one open side of the module housing; can include
- the cover frame may be melted by the venting gas to close the lead slit.
- the cover frame may include a first cover frame configured to have a first melting point; and a second cover frame configured to have a second melting point higher than the first melting point.
- the first melting point may be a temperature lower than the temperature of the venting gas
- the second melting point may be a temperature higher than the temperature of the venting gas
- the cover frame may be configured such that the first cover frame and the second cover frame contact each other or overlap each other in a spaced apart state, or the first cover frame may cover the second cover frame. .
- the battery pack may include a pack cover configured to face the cover frame and cover one side of the module assembly.
- the battery pack may include a pack opening formed at at least one end of both ends of a space formed between the module assembly and the cover frame in the first direction.
- An ESS according to an embodiment of the present invention may include the battery pack of the present invention as described above.
- a vehicle according to an embodiment of the present invention may include the battery pack of the present invention as described above.
- the venting gas in discharging the venting gas generated during a thermal event, can be discharged at an appropriate speed despite a high venting pressure, thereby minimizing or preventing the inflow of external oxygen. there is.
- FIG. 1 is a view showing the appearance of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a view showing the internal structure of the vent channel of the present invention.
- 3 is a view for explaining the opening of the venting passage according to the melting of the discharge delay member by the high-temperature venting gas.
- FIG 4 and 5 are views showing a communication structure between a battery module and a vent channel according to the present invention.
- FIGS. 6 and 7 are diagrams showing various corresponding relationships between a compartment space formed in a venting channel and a battery module according to the present invention.
- FIG. 8 is a diagram showing an exemplary form of the battery module of the present invention.
- FIG. 9 is a view showing a form in which the pack cover is removed in the battery pack of the present invention.
- FIG 10 and 11 are views showing various types of cover frames applied to the battery module of the present invention.
- FIGS. 12 and 13 are diagrams illustrating an embodiment in which a pack opening is formed in the battery pack according to the present invention.
- ESS 14 is a diagram illustrating an energy storage system (ESS) according to an embodiment of the present invention.
- 15 is a view showing a vehicle according to an embodiment of the present invention.
- a battery pack 1 may include a module assembly M, a vent channel 20 and an exhaust unit 30.
- the module assembly M may include a plurality of battery modules 10 disposed along a first direction (a direction parallel to the X-axis).
- the vent channel 20 may be disposed on one surface (parallel to the X-Y plane) of the module assembly M.
- the vent channel 20 may be configured to communicate with each of the plurality of battery modules 10 .
- the discharge delay member 30 may be provided in the vent channel 20 .
- the discharge delay member 30 may be configured to delay the discharge of venting gas generated from at least some of the plurality of battery modules 10 and introduced into the vent channel 20 .
- the battery pack 1 of the present invention when the venting gas is discharged due to the occurrence of a thermal event, the venting gas is rapidly discharged, rather reversely, in the direction from the outside to the inside. It is possible to minimize or prevent the inflow of oxygen due to possible negative pressure.
- the battery pack 1 of the present invention is configured to discharge the venting gas generated from each of the plurality of battery modules 10 rather than forming a discharge part for direct venting in a part of the battery module 10. The possibility of inflow of external oxygen can be greatly reduced by providing the channel.
- venting occurs inside the battery pack 1
- the venting gas may be discharged very quickly at a high pressure in the initial stage of venting.
- the venting pressure decreases toward the latter half of the venting, and as the venting gas is rapidly discharged, the venting pressure may rapidly decrease in the latter half of the venting.
- a large amount of negative pressure may be generated from the outside toward the inside, and due to this, a large amount of oxygen may flow in and cause a fire by contacting high-temperature combustible materials remaining inside.
- the venting channel 20 and the discharge delay member 30 provided therein it is possible to minimize or prevent the inflow of oxygen due to the negative pressure, and thereby the battery pack ( 1)
- the stability in use can be greatly improved.
- the discharge delay member 30 may be, for example, a porous plate configured to allow venting gas to pass therethrough.
- the venting gas may pass through the discharge delay member 30 .
- the emission speed of the venting gas may be slowed down.
- the discharge delay member 30 may be provided in plurality.
- a plurality of the discharge delay members 30 may be disposed along the first direction (direction parallel to the X axis). In this case, even if gas venting occurs in any battery module 10 among the plurality of battery modules 10 , the flow of venting gas introduced from the corresponding battery module 10 into the vent channel 20 may be delayed.
- the venting channel 20 may have a channel closing portion formed at one end in the extending direction and a channel opening portion 20a formed at the other end.
- the venting gas introduced into the venting channel 20 at a position close to the closed portion of the venting channel 20 is directed toward the channel opening portion. It passes through a plurality of venting delay members 30 until it is discharged through (20a), and due to this, the discharge pressure can be sufficiently reduced.
- the discharge delay member 30 may be configured to be melted by a venting gas. That is, the emission delay member 30 may be configured to have a melting point lower than the temperature of the venting gas generated in the battery module 10 of the present invention.
- the temperature of the venting gas may vary depending on the specific configuration and number of battery cells applied to the battery module 10, and the emission delay member 30 of the present invention may be configured to have an appropriate melting point in consideration of this.
- the discharge delay member 30 may include a resin and/or rubber material.
- the discharge delay member 30 may have a porous plate structure as described above.
- the venting gas can pass through, so that the venting gas can be discharged even if the porous plate structure is not applied.
- the porous plate structure can prevent excessive delay in the discharge of the venting gas.
- the battery module 10 may include an outlet OL formed on one surface thereof (a surface parallel to the X-Y plane).
- the outlet OL may be provided in each of the plurality of battery modules 10 .
- the outlet OL may be configured to allow venting gas inside the battery module 10 to be discharged.
- the vent channel 20 may include an inlet IL formed on one surface thereof (a surface parallel to the X-Y plane).
- a plurality of inlets IL may be provided. Each of the plurality of inlets IL may be provided at a position corresponding to each of the plurality of outlets OL.
- the inlet IL and the outlet OL may communicate with each other. Accordingly, the venting gas generated in the battery module 10 may flow into the inner space of the venting channel 20 through the outlet OL and the inlet IL.
- the battery pack 1 of the present invention may include a flow path stopper 40 configured to cover at least one of the outlet OL and the inlet IL.
- the flow path stopper 40 may be configured to be melted by a venting gas. When the flow path plug 40 is melted by contact with the high-temperature venting gas generated inside the battery module 10, the venting gas flows into the venting channel 20 through the outlet OL and the inlet IL. can be introduced into
- the passage stop 40 may be configured to have a melting point lower than the temperature of the venting gas generated in the battery module 10 of the present invention.
- the temperature of the venting gas may vary depending on the specific configuration and number of battery cells applied to the battery module 10, and the passage stopper 40 of the present invention may be configured to have an appropriate melting point in consideration of this.
- the flow path stopper 40 may include a resin and/or rubber material.
- the space inside the vent channel 20 may include a plurality of compartment spaces configured to be isolated from each other by the discharge delay member 30 .
- each of the plurality of partitioned spaces may be configured to communicate with at least one battery module 10 .
- one partitioned space may be configured to communicate with one battery module 10 .
- one partitioned space may be configured to communicate with a plurality of battery modules 10 .
- FIG. 7 shows only a case in which one compartment space communicates with two battery modules 10, the present invention is not limited thereto, and may be configured to communicate with three or more battery modules 10.
- the compartment space inside the venting channel 20 is configured to communicate with the battery module 10, as shown in FIG. 4, the outlets formed in the battery module 10 and the venting channel 20, respectively.
- the battery module 10 of the present invention accommodates a cell assembly CS including a plurality of battery cells 100 (see FIGS. 4 and 5 ) and a cell assembly CS. It may include a module housing 200 configured and a cover frame 300 configured to cover one open side of the module housing 200 .
- the battery cell 100 may include an electrode lead 110 connected to an electrode assembly (not shown) accommodated therein and drawn out of the cell case.
- the module housing 200 may have a shape in which at least one side is open.
- the electrode lead 110 may extend toward the open area of the module housing 200 .
- the cover frame 300 may have a lead slit through which the electrode lead 110 passes.
- a bus bar may be positioned on the cover frame 300, and a plurality of electrode leads 110 may pass through lead slits and be coupled to the bus bar.
- a module opening portion P1 which is a gap through which venting gas generated inside the battery module 10 can be discharged.
- This module opening (P1) can function as a passage through which cooling fluid (eg, air) can flow in the normal use state of the battery pack (1), and when a thermal event (thermal event) occurs, the venting gas It can function as a passage for discharge.
- the plurality of battery modules 10 may be arranged so that module openings P1 formed in each face the same direction.
- this module opening (P1) is located on one surface (parallel to the X-Y plane) and the other surface (parallel to the X-Z plane) on which the venting channel 20 of the present invention is located. can be formed on
- the cover frame 300 may be melted by a venting gas to close the lead slit.
- the cover frame 300 may be configured to have a melting point lower than the temperature of the venting gas.
- the temperature of the venting gas may vary depending on the specific configuration and number of applied battery cells 100 applied to the battery module 10, and the cover frame 300 of the present invention may be configured to have an appropriate melting point in consideration of this.
- the cover frame 300 may include a resin material.
- the melting of the cover frame 300 occurs at the beginning of generation of the venting gas, so that the lead slit can be closed, and accordingly, the inflow of oxygen through the opening part P1 of the battery module 10 is blocked.
- the battery pack 1 of the present invention may induce a flow of venting gas toward the venting channel 20 .
- the flow of the venting gas guided toward the venting channel 20 may be delayed through the discharge delay member 30 (see FIGS. 2 and 3) described above, whereby oxygen through the venting channel 20 according to the generation of negative pressure. Inflows can also be minimized.
- the cover frame 300 is compared with the previously described discharge delay member 30 (see FIGS. 2 and 3) and/or the flow stop 40 (see FIG. 5). It can be configured to have a lower melting point.
- the cover frame 300 is configured in this way, it is possible to quickly block the discharge of the venting gas and the discharge of the spark material through the module opening part P1 of the battery module 10, thereby entering the battery module 10. can maximize the effect of preventing oxygen inflow.
- the cover frame 300 may include a first frame 310 and a second frame 320 .
- the first frame 310 may be configured to have a first melting point.
- the second frame 320 may be configured to have a second melting point higher than the first melting point.
- the first melting point may be lower than the temperature of the venting gas.
- the second melting point may be higher than the temperature of the venting gas.
- the first cover frame 310 may include, for example, a resin material.
- the second cover frame 320 may include, for example, a resin material and/or a mica material having a higher melting point than the first cover frame 310 .
- the first cover frame 310 may be configured to cover the module opening portion P1 of the battery module 10 by melting more quickly than the second cover frame 320 in a high-temperature environment according to the occurrence of a thermal event.
- the second cover frame 320 may be configured to support the electrode lead 110 without melting for a longer time compared to the first cover frame 310 in a high-temperature environment according to the occurrence of a thermal event.
- the second cover frame 320 may support the electrode lead 110 . Therefore, it is possible to prevent hard shorts from occurring due to unnecessary electrical contact between electrode leads 110 adjacent to each other. Furthermore, a phenomenon in which a large amount of oxygen is introduced due to the complete structural collapse of the cover frame 300 causing a fire or an increase in the scale of the fire can be prevented.
- the first cover frame 310 and the second cover frame 320 may have shapes corresponding to each other.
- the first cover frame 310 and the second cover frame 320 may each have lead slits at positions corresponding to each other.
- the cover frame 300 may be configured such that the first cover frame 310 and the second cover frame 320 are in contact with each other or overlapped in a spaced state (see FIG. 10 ).
- the first cover frame 310 may be disposed further inside than the second cover frame 320 . In this case, the first cover frame 310 having a relatively low melting point is melted by first being exposed to the high-temperature venting gas, thereby quickly closing the module opening part P1.
- the cover frame 300 may be configured such that the first cover frame 310 covers the second cover frame 320 (see FIG. 11 ).
- the cover frame 300 may be manufactured by, for example, insert injection molding.
- the module opening portion P1 may be quickly closed by melting of the first cover frame 310 exposed to a high-temperature environment from the outside.
- the battery pack 1 may include a pack cover 50 .
- the pack cover 50 may be configured to face the cover frame 300 and cover one side of the module assembly M. When the pack cover 50 is provided, high-temperature venting gas and spark material that may be discharged through the module opening P1 according to the occurrence of a thermal event may be blocked.
- the battery pack 1 may include a pack opening part P2.
- the pack opening part P2 may be formed at at least one end of both ends in the first direction (direction parallel to the X axis) of the space S formed between the module assembly M and the pack cover 50. there is.
- the cooling fluid can be efficiently circulated through the space formed between the pack cover 50 and the module assembly M.
- module openings P1 may be formed on both sides of the battery module 10, respectively.
- the pack cover 50 may be provided on both sides of the module assembly M, respectively.
- the pack opening part P2 is formed between one side of the module assembly M and the pack cover 50 in an extension direction (direction parallel to the X-axis) of the space S formed between one end and the module assembly M.
- Each may be provided at the end of the other side in the extending direction (direction parallel to the X axis) of the space S formed between the other side and the pack cover 50 .
- the cooling fluid introduced through one of the pair of pack openings P2 passes through the inside of each battery module 10 and is located on the opposite side. Efficient cooling is possible by being discharged through the pack opening (P2) to be.
- the battery pack 1 of the present invention can be configured to block the inflow of battery oxygen along such a cooling circulation path, thereby greatly improving the safety of using the battery pack 1.
- an energy storage system (ESS) 3 includes a battery pack 1 according to the present invention.
- the ESS 3 may include, for example, a battery system including a plurality of battery packs 1 and a rack housing 2 configured to allow the plurality of battery packs 1 to be stacked therein.
- the ESS 3 may include one or a plurality of such battery systems.
- a vehicle 5 includes a battery pack 1 according to the present invention.
- the vehicle 5 may be configured to be powered by one or a plurality of battery packs 1 and driven.
- the vehicle 5 may be, for example, an electric vehicle (EV) or a hybrid electric vehicle (HEV).
- EV electric vehicle
- HEV hybrid electric vehicle
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (15)
- 제1 방향을 따라 배치되는 복수의 배터리 모듈을 포함하는 모듈 집합체;상기 모듈 집합체의 일 면 상에 배치되며, 상기 복수의 배터리 모듈 각각과 연통되도록 구성되는 벤트 채널; 및상기 벤트 채널 내에 구비되며, 상기 복수의 배터리 모듈 중 적어도 일부에서 발생되어 상기 벤트 채널 내로 유입된 벤팅 가스의 배출을 지연시키도록 구성되는 배출 지연 부재;를 포함하는 배터리 팩.
- 제1항에 있어서,배출 지연 부재는 복수개가 구비되며,복수의 상기 배출 지연 부재는 상기 제1 방향을 따라 배치되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 배출 지연 부재는,상기 벤팅 가스에 의해 용융되도록 구성되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 복수의 배터리 모듈 각각은 내부의 벤팅 가스가 배출될 수 있도록 구성되는 아웃렛을 구비하고,상기 벤트 채널은 각각의 상기 아웃렛과 대응되는 위치에 형성되는 복수의 인렛를 구비하는 것을 특징으로 하는 배터리 팩.
- 제4항에 있어서,상기 배터리 팩은,상기 아웃렛 및 상기 인렛 중 적어도 어느 하나를 커버하며 상기 벤팅 가스에 의해 용융되도록 구성되는 유로 마개를 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 벤트 채널 내부의 공간은 상기 배출 지연 부재에 의해 상호 격리되도록 구성되는 복수의 구획 공간을 포함하며,복수의 구획 공간 각각은 적어도 하나의 배터리 모듈과 연통되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 복수의 배터리 모듈 각각은,전극 리드를 구비하는 복수의 배터리 셀을 포함하는 셀 집합체;상기 셀 집합체를 수용하도록 구성되며 적어도 일 측이 개방된 형태를 갖는 모듈 하우징; 및상기 전극 리드가 통과되도록 구성되는 리드 슬릿을 구비하며 상기 모듈 하우징의 개방된 일 측을 커버하도록 구성되는 커버 프레임;을 포함하는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 커버 프레임은,상기 벤팅 가스에 의해 용융되어 상기 리드 슬릿이 폐쇄되도록 구성되는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 커버 프레임은,제1 융점을 갖도록 구성되는 제1 커버 프레임; 및상기 제1 융점보다 높은 제2 융점을 갖도록 구성되는 제2 커버 프레임;을 포함하는 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,상기 제1 융점은 상기 벤팅 가스의 온도보다 낮은 온도이고, 상기 제2 융점은 상기 벤팅 가스의 온도보다 높은 온도인 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,상기 커버 프레임은,상기 제1 커버 프레임과 상기 제2 커버 프레임이 서로 접촉하거나 또는 서로 이격된 상태로 중첩되도록 구성되거나, 또는 상기 제1 커버 프레임이 상기 제2 커버 프레임을 커버하도록 구성되는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 배터리 팩은,상기 커버 프레임과 대면하여 상기 모듈 집합체의 일 측을 커버하도록 구성되는 팩 커버를 포함하는 것을 특징으로 하는 배터리 팩.
- 제12항에 있어서,상기 배터리 팩은,모듈 집합체와 상기 커버 프레임 사이에 형성되는 공간의 상기 제1 방향 양 단부 중 적어도 어느 일 단부에 형성되는 팩 개방부를 구비하는 것을 특징으로 하는 배터리 팩.
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 팩을 포함하는 ESS
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 팩을 포함하는 자동차.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280056543.8A CN117837011A (zh) | 2021-12-27 | 2022-12-27 | 电池组和包括该电池组的ess和车辆 |
EP22916717.6A EP4379935A1 (en) | 2021-12-27 | 2022-12-27 | Battery pack, and ess and vehicle comprising same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20210188648 | 2021-12-27 | ||
KR10-2021-0188648 | 2021-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023128576A1 true WO2023128576A1 (ko) | 2023-07-06 |
Family
ID=86999960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2022/021439 WO2023128576A1 (ko) | 2021-12-27 | 2022-12-27 | 배터리 팩, 그리고 이를 포함하는 ess 및 자동차 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4379935A1 (ko) |
KR (1) | KR20230099697A (ko) |
CN (1) | CN117837011A (ko) |
WO (1) | WO2023128576A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110055371A (ko) * | 2009-11-19 | 2011-05-25 | 에스비리모티브 주식회사 | 배터리 팩, 상기 배터리 팩 제조방법 및 이동수단 |
KR101292988B1 (ko) * | 2010-10-19 | 2013-08-02 | 로베르트 보쉬 게엠베하 | 배터리 모듈 |
KR20200080079A (ko) * | 2018-12-26 | 2020-07-06 | 주식회사 엘지화학 | 내측 커버를 포함하는 배터리 모듈 |
CN111584978A (zh) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | 电池模组 |
KR20210144463A (ko) * | 2020-05-22 | 2021-11-30 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 |
-
2022
- 2022-12-27 WO PCT/KR2022/021439 patent/WO2023128576A1/ko active Application Filing
- 2022-12-27 CN CN202280056543.8A patent/CN117837011A/zh active Pending
- 2022-12-27 EP EP22916717.6A patent/EP4379935A1/en active Pending
- 2022-12-27 KR KR1020220186324A patent/KR20230099697A/ko active Search and Examination
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110055371A (ko) * | 2009-11-19 | 2011-05-25 | 에스비리모티브 주식회사 | 배터리 팩, 상기 배터리 팩 제조방법 및 이동수단 |
KR101292988B1 (ko) * | 2010-10-19 | 2013-08-02 | 로베르트 보쉬 게엠베하 | 배터리 모듈 |
KR20200080079A (ko) * | 2018-12-26 | 2020-07-06 | 주식회사 엘지화학 | 내측 커버를 포함하는 배터리 모듈 |
KR20210144463A (ko) * | 2020-05-22 | 2021-11-30 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 |
CN111584978A (zh) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | 电池模组 |
Also Published As
Publication number | Publication date |
---|---|
CN117837011A (zh) | 2024-04-05 |
KR20230099697A (ko) | 2023-07-04 |
EP4379935A1 (en) | 2024-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021201421A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2021125469A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
WO2020075962A1 (ko) | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 이러한 배터리 랙을 포함하는 전력 저장 장치 | |
WO2021085911A1 (ko) | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 전력 저장 장치 | |
WO2022244994A1 (ko) | 가스 벤팅 패스를 구비한 배터리 팩 | |
WO2021201408A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
WO2021112412A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
WO2022158783A1 (ko) | 배터리 팩 | |
WO2021201409A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2023128576A1 (ko) | 배터리 팩, 그리고 이를 포함하는 ess 및 자동차 | |
WO2023121193A1 (ko) | 배터리 시스템, 그리고 이를 포함하는 ess 및 자동차 | |
WO2022270746A1 (ko) | 가스 배출 경로를 개선한 배터리 팩 | |
WO2023033458A1 (ko) | 열폭주 시 산소 유입 차단을 위한 구조가 적용된 배터리 모듈 | |
WO2022154431A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
WO2022158792A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2022149961A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
WO2022225168A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
WO2023128577A1 (ko) | 배터리 팩, 그리고 이를 포함하는 ess 및 자동차 | |
WO2023128474A1 (ko) | 배터리 팩, 그리고 이를 포함하는 ess 및 자동차 | |
WO2022244992A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
WO2023128574A1 (ko) | 배터리 팩 및 이를 포함하는 자동차 | |
WO2023008886A1 (ko) | 배터리 랙 및 이를 포함하는 에너지 저장 장치 | |
WO2023243805A1 (ko) | 이차전지 팩 | |
WO2023146277A1 (ko) | 배터리 팩 및 이를 포함하는 자동차 | |
WO2024101831A1 (ko) | 배터리 팩 및 이를 포함하는 자동차 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22916717 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2024507132 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280056543.8 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2022916717 Country of ref document: EP Effective date: 20240301 |