WO2023149629A1 - 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 - Google Patents
배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 Download PDFInfo
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- WO2023149629A1 WO2023149629A1 PCT/KR2022/018759 KR2022018759W WO2023149629A1 WO 2023149629 A1 WO2023149629 A1 WO 2023149629A1 KR 2022018759 W KR2022018759 W KR 2022018759W WO 2023149629 A1 WO2023149629 A1 WO 2023149629A1
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- Prior art keywords
- partition
- battery module
- case
- battery
- cover
- Prior art date
Links
- 238000005192 partition Methods 0.000 claims description 93
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000010445 mica Substances 0.000 description 5
- 229910052618 mica group Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000002360 explosive Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 238000013021 overheating Methods 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
-
- 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
- H01M50/249—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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of 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
- H01M50/30—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
- 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
- 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
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module, a battery pack including the same, and a vehicle, and more particularly, relates to a battery module in which gas is discharged but flame is not emitted when a battery cell is ignited, a battery pack including the same, and a vehicle. .
- a lithium secondary battery mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
- a lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator therebetween, and an exterior material that seals and houses the electrode assembly together with an electrolyte, that is, a battery case.
- a lithium secondary battery is composed of a positive electrode, a negative electrode, and a separator and electrolyte interposed therebetween.
- a lithium ion battery (LIB) or a lithium polymer battery (Polymer Lithium Ion Battery) is used. , PLIB), etc.
- the electrodes of these lithium secondary batteries may be formed by coating a positive electrode or negative electrode active material on a current collector such as an aluminum or copper sheet, mesh, film, or foil and then drying it. .
- Lithium secondary batteries are currently in the limelight due to their advantages such as high operating voltage and extremely high energy density.
- organic electrolytes are used, overcharging of lithium secondary batteries causes overcurrent and overheating, which in severe cases can lead to explosions or fires due to ignition. There is a problem that causes
- Various types of secondary batteries include a battery module in which a case capable of protecting the battery cell is provided and a plurality of battery cells are stacked and inserted into the case, and a battery pack including a plurality of battery modules.
- a flame when a flame is generated in at least one of the battery cells inside the case of the battery module, when the flame leaks out of the case of the battery module, it may propagate to other battery modules and may cause a dangerous situation to a user.
- a battery module or battery pack is installed in an electric vehicle and a battery cell catches fire and the flame leaks out, a driver driving the electric vehicle may get burned or be in a dangerous situation.
- a technical problem to be achieved by the present invention is to provide a battery module, a battery pack including the same, and a vehicle that can prevent the outflow of the flame while discharging gas to the outside of the case when a flame is generated in the battery cell.
- a battery cell stack in which a plurality of battery cells are stacked; a case accommodating the battery cell stack and having a first outlet through which gas is discharged; an exhaust path member mounted on the case to provide an exhaust path for the gas, and to discharge the gas but prevent the outflow of flame; and a cover coupled to the case to cover the exhaust passage member and having a second outlet through which gas moved through the exhaust passage member is discharged, and one cover included in the case is adjustable in length. It can be provided to the battery module characterized in that provided.
- first outlet formed in the case and the second outlet formed in the cover are formed in opposite directions, and the gas is guided from the first outlet to the second outlet while being guided by the exhaust passage member. may spill out.
- the case may include a lower cover in which the battery cell laminate is accommodated; and an upper cover coupled to the lower cover, to which the exhaust passage member is mounted, on which the first outlet is formed, and whose length is adjusted, wherein the cover is coupled to the upper cover, and the exhaust passage member is the upper cover. It may be located between the cover and the upper cover.
- the upper cover may include a first plate having a concave-convex first rail; and a second plate having a concavo-convex second rail formed to correspond to the first rail of the first plate and coupled to the first plate.
- the lengths of the first plate and the second plate may be adjusted while moving with each other along the first rail and the second rail.
- an insertion groove into which the exhaust passage member is inserted may be formed at an end of the upper cover.
- one exhaust path member among the plurality of exhaust path members and another exhaust path member adjacent thereto may be arranged in a zigzag pattern.
- the exhaust path member the inner partition formed with a coupling groove; at least one height-adjustable partition coupled to the coupling groove of the inner partition; And it may include an outer partition covering the inner partition.
- the coupling groove is formed on at least one of upper and lower sides of the inner partition, and a protrusion corresponding to the shape of the coupling groove is formed in the height adjustment partition, and the protrusion of the height adjustment partition is formed on the inner partition. It may be coupled to the coupling groove.
- it further includes a fixing pin for fixing the height-adjustable partition, a through hole is formed on a side surface of the inner partition, a plurality of fixing grooves are formed in the height-adjustable partition, and the fixing pin is formed on the inner partition. It passes through the through hole and is inserted into one of the plurality of fixing grooves of the height-adjustable partition to fix the height-adjustable partition.
- the outer partition may be coupled to the inner partition in a sliding manner.
- a guide groove is formed at an edge of the inner partition
- a protrusion is formed at an edge of the outer partition
- the protrusion of the outer partition may move along the guide groove of the inner partition
- a battery pack including the battery module described above may be provided, and a vehicle including the battery module may be provided.
- Embodiments of the present invention when a flame occurs in the battery cell, the gas is discharged to the outside of the case by the exhaust path member mounted on the case, but there is an effect of preventing the outflow of the flame.
- FIG. 1 is a combined perspective view of a battery module according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- FIG 3 is a perspective view of a state in which a cover is removed from a battery module according to an embodiment of the present invention.
- 4 to 6 are diagrams showing how a case separated from a battery module according to an embodiment of the present invention is coupled and adjusted in length.
- FIGS. 7 to 11 are diagrams illustrating a process of assembling an exhaust path member in a battery module according to an embodiment of the present invention.
- FIG. 12 is a view showing a height-adjusted state of an exhaust path member in a battery module according to an embodiment of the present invention.
- FIG. 13 is a view showing a state in which the length of an exhaust path member is adjusted in a battery module according to an embodiment of the present invention.
- Figure 14 is a view showing another embodiment of Figure 3, an embodiment in case the length of the case is increased.
- FIG. 15 is a view showing another embodiment of FIG. 3, which is an embodiment in case the length of the case is reduced.
- FIG. 16 is a view showing another embodiment of FIG. 3, in which the number of exhaust path members is reduced.
- each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation. Therefore, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such description will be omitted.
- the term 'coupling' or 'connection' refers to the case where one member and another member are directly coupled or directly connected, as well as when one member is indirectly coupled to another member through a joint member, or indirectly Including cases connected to
- FIG. 1 is a combined perspective view of a battery module according to an embodiment of the present invention
- Figure 2 is an exploded perspective view of a battery module according to an embodiment of the present invention
- Figure 3 is a battery module according to an embodiment of the present invention
- 4 to 6 are perspective views of a state in which the cover is removed
- FIGS. 4 to 6 are views showing a state in which a case separated from a battery module according to an embodiment of the present invention is coupled and length is adjusted
- FIGS. 7 to 11 are It is a view showing a process of assembling an exhaust path member in a battery module according to an embodiment of the present invention
- FIG. 12 is a view showing a height-adjusted state of an exhaust path member in a battery module according to an embodiment of the present invention.
- FIG. 13 is a view showing the length of the exhaust path member in the battery module according to an embodiment of the present invention
- FIG. 14 is a view showing another embodiment of FIG. 3, in which the length of the case is increased.
- 15 is a view showing another embodiment of FIG. 3, an embodiment when the length of the case is reduced
- FIG. 16 is a view showing another embodiment of FIG. 3, exhaust This is an embodiment in which the number of path members is reduced.
- a battery module 10 includes a battery cell stack 100, a case 200, an exhaust passage member 300, and a cover 400. .
- the battery cell stack 100 is formed by stacking a plurality of battery cells equipped with electrode leads.
- a battery cell may have various structures, and a plurality of battery cells may be stacked in various ways.
- An electrode lead provided in the battery cell is a type of terminal exposed to the outside and connected to an external device, and a conductive material may be used.
- the electrode lead may include a positive electrode lead and a negative electrode lead.
- the positive electrode lead and the negative electrode lead may be disposed in opposite directions with respect to the length direction of the battery cell, or the positive electrode lead and negative electrode lead may be disposed in the same direction with respect to the length direction of the battery cell.
- the positive electrode lead and the negative electrode lead may be made of various materials.
- the positive electrode lead may be made of aluminum and the negative electrode lead may be made of copper.
- the electrode lead may be electrically coupled to a bus bar (not shown).
- Battery cells are unit cells arranged in the order of positive plate-separator-negative plate or bi-cells arranged in the order of positive plate-separator-negative plate-separator-positive plate-separator-negative plate according to the battery capacity. It may have a structure in which a plurality of layers are stacked.
- the battery cell stack 100 may include a plurality of cartridges (not shown) accommodating each battery cell.
- Each cartridge (not shown) may be manufactured by injection molding of plastic, and a plurality of cartridges (not shown) formed with a storage unit capable of accommodating battery cells may be stacked.
- a cartridge assembly in which a plurality of cartridges (not shown) are stacked may include a connector element or a terminal element.
- the connector element may include, for example, various types of electrical connection parts or connection members to be connected to a battery management system (BMS) capable of providing data on voltage or temperature of a battery cell.
- BMS battery management system
- the terminal element is a main terminal connected to the battery cell and includes a positive terminal and a negative terminal, and the terminal element is provided with a terminal bolt to be electrically connected to the outside.
- battery cells may have various shapes.
- the battery cell stack 100 is accommodated in the case 200 and a first outlet 225 through which gas is discharged is formed.
- the case 200 may be provided to surround the battery cell stack 100 .
- the case 200 surrounds the entire battery cell stack 100 and thereby protects the battery cell stack 100 from external vibration or impact.
- one cover included in the case 200 is prepared to be able to adjust the length by various methods. A detailed description of the length adjustment of the case 200 will be described later.
- the case 200 may be formed in a shape corresponding to the shape of the battery cell stack 100 .
- the case 200 may also be provided in a hexahedral shape to correspond thereto.
- the case 200 may be manufactured by, for example, bending a plate made of metal, and may be manufactured integrally or separately.
- the case 200 may be made of a steel material that can withstand flame, but the material of the case 200 is not limited to steel and may include various metals.
- the case 200 may include a mica plate formed of mica having heat insulation properties and heat resistance to prevent outflow of flame.
- the mica plate may include not only a flat mica plate but also a mixed shape of a flat surface and a curved surface.
- the case 200 may include a lower cover 210 and an upper cover 220 .
- the battery cell stack 100 is accommodated in the lower cover 210 .
- the upper cover 220 is coupled to the lower cover 210, and referring to FIG. 3, the exhaust passage member 300 is mounted on the upper cover 220. Also, a first outlet 225 is formed in the upper cover 220 .
- the exhaust passage member 300 may be coupled to the insertion groove 226 of the upper cover 220.
- gas generated in the battery cell stack 100 inside the case 200 is provided to move toward the exhaust path member 300 through the first outlet 225 of the upper cover 220 .
- the upper cover 220 may be provided to be adjustable in length.
- the upper cover 220 may include a first plate 221 and a second plate 223 .
- a concave-convex first rail 222 is formed on the first plate 221, and a concave-convex second rail ( 224) is formed.
- the first plate 221 and the second plate 223 may be coupled through a first rail 222 and a second rail 224 . Also, the first plate 221 and the second plate 223 are provided to move with each other along the first rail 222 and the second rail 224 . As such, while the first plate 221 and the second plate 223 are moved, the length of the upper cover 220 may be adjusted.
- the length adjustment method of the upper cover 220 may be more diverse. In this way, if the length of the upper cover 220 is adjusted, there is an advantage that it can be applied to battery cells having various lengths.
- an insertion groove 226 may be formed at an end of the upper cover 220, and the exhaust path member 300 is inserted into and fixed to the insertion groove 226.
- a method in which the exhaust passage member 300 is coupled to the upper cover 220 may vary.
- Case 200 may be formed with a through portion (not shown) through which the aforementioned connector element or terminal element may be exposed to the outside. That is, the connector element or terminal element may be electrically connected to a predetermined external part or member, and a through portion may be formed in the case 200 so that the electrical connection is not hindered by the case 200 .
- the exhaust passage member 300 is mounted on the case 200 to provide a gas discharge path, and is provided to discharge the gas but prevent the outflow of flame.
- the number of exhaust path members 300 may be plural, and one exhaust path member 300a among the plurality of exhaust path members 300 and another exhaust path member 300b adjacent thereto may be They can be arranged in a zigzag pattern.
- the gas moves from the first outlet 225 in the direction of the arrow in FIG. 3 and is discharged through the second outlet 410, but the flame is blocked by the exhaust passage member 300 and cannot move.
- the exhaust path member 300 may include an inner partition 310, a height adjusting partition 320, and an outer partition 330.
- the inner partition 310 is located inside the outer partition 330, and a coupling groove 311 may be formed in the inner partition 310.
- the height adjustment partition 320 is coupled to the coupling groove 311 of the inner partition 310 .
- Coupling groove 311 may be formed in various positions of the inner partition 310, for example, may be formed on the upper and lower sides as shown in FIG.
- coupling grooves 311 are formed on both the upper and lower sides of the inner partition 310 , but the coupling groove 311 may be formed only on one of the upper and lower sides of the inner partition 310 .
- One or more height-adjusting partitions 320 may be provided and coupled to the coupling groove 311 of the inner partition 310 .
- a protrusion 321 corresponding to the shape of the coupling groove 311 may be formed in the height-adjusting partition 320, and the protrusion 321 of the height-adjusting partition 320 is the inner partition 310. It may be configured to be coupled to the coupling groove 311 of.
- the height adjustment partition 320 can adjust the overall height of the exhaust path member 300 while moving upward and downward along the coupling groove 311 of the inner partition 310 . A detailed description of this will be given later.
- the height-adjustable partition 320 may be fixed by a fixing pin 340 .
- a through hole 312 may be formed on a side surface of the inner partition 310 , and a plurality of fixing grooves 322 may be formed in the height adjustment partition 320 .
- FIG. 9 shows a state in which a plurality of height-adjusting partitions 320 are coupled to the upper side of the inner partition 310 in FIG. 8 along the longitudinal direction and each of the height-adjusting partitions 320 is fixed with a fixing pin 340.
- the height-adjusting partition 320 may be moved upward from FIG. 8 and the height-adjusting partition 320 may be fixed with the fixing pin 340, thereby adjusting the height of the exhaust passage member 300. This becomes possible
- the fixing pin 340 passes through the through hole 312 of the inner partition 310 and is inserted into one of the plurality of fixing grooves 322 of the height adjustment partition 320 to fix the height adjustment partition 320.
- the height of the exhaust passage member 300 may be determined according to the position of the height-adjustable partition 320 in the vertical direction.
- the outer partition 330 is configured to cover the inner partition 310 .
- the outer partition 330 may cover the inner partition 310 in various ways, and for example, as shown in FIG. 10 , the outer partition 330 may be coupled to the inner partition 310 in a sliding manner.
- the guide groove 313 is formed on the edge of the inner partition 310
- the protrusion 331 is formed on the edge of the outer partition 330
- the protrusion 331 of the outer partition 330 may be provided to move along the guide groove 313 of the inner partition 310.
- the outer partition 330 moves from the inner partition 310 so that the overall length of the exhaust passage member 300 can be adjusted to become longer.
- the cover 400 is coupled to the case 200 so as to cover the exhaust passage member 300, and the cover ( 400) is formed with a second outlet 410.
- the cover 400 is coupled to the upper cover 220, and the exhaust passage member 300 is positioned between the cover 400 and the upper cover 220.
- the gas generated inside the case 200 moves to the exhaust passage member 300 through the first outlet 225 of the upper cover 220, and from the exhaust passage member 300 to the second outlet of the cover 400. It is discharged to the outside through the outlet 410.
- the first outlet 225 formed in the case 200 and the second outlet 410 formed in the cover 400 are formed in opposite directions. Since the flame basically moves upward, according to the above structure, even if the flame rises upward through the first discharge port 225, it cannot move because it is blocked by the exhaust passage member 300, and therefore, the flame moves through the first discharge port (225). 225) and cannot move to the second outlet 410 formed in the opposite direction.
- the gas can be discharged from the first outlet 225 to the second outlet 410 while being guided by the exhaust passage member 300, but the flame cannot be discharged through the second outlet 410.
- the battery cell stack 100 is accommodated in the case 200 .
- a first outlet 225 is formed in the upper cover 220 of the case 200, and the exhaust passage member 300 is mounted on the upper cover 220.
- the second outlet 410 of the cover 400 is formed in the opposite direction away from the first outlet 225 of the upper cover 220 .
- the first plate 221 on which the concave-convex first rail 222 is formed and the second plate 223 on which the concave-convex second rail 224 is formed are combined so that the length can be adjusted while moving. arranged to do
- the exhaust passage member 300 may include an inner partition 310, a height-adjustable partition 320, an outer partition 330, and a fixing pin 340, and exhaust is exhausted by the height-adjustable partition 320.
- the height of the path member 300 can be adjusted, and the outer partition 330 can be slidably provided along the inner partition 310 so that the length can be adjusted.
- the exhaust path member 300 After the length of the case 200 is adjusted and the height and length of the exhaust path member 300 are adjusted, when the exhaust path member 300 is mounted on the case 200, the flame is blocked by the exhaust path member 300 and does not move. However, the gas may be discharged through the same path as in FIG. 3 .
- the case 200 may be formed of a plate made of metal or a mica plate, and since the first outlet 225 and the second outlet 410 are located in opposite directions, the battery inside the case 200 The flame generated by ignition of the cell cannot be extinguished.
- the exhaust passage member 300 may be provided in various ways. Referring to FIG. 14, when the number of battery cells or battery cell stacks 100 is large or the length of the battery cells or battery cell stacks 100 is long compared to FIG. 3, the case 200 is adjusted to be long, The length of the exhaust path member 300 may also be adjusted to be long so as to correspond to the size of the case 200 .
- the case 200 is adjusted to be short.
- the length of the exhaust path member 300 may be adjusted to be short so as to correspond to the size of the case 200.
- FIGS. 14 to 16 is one modified embodiment, and the battery module 10 according to one embodiment of the present invention can be modified more than this.
- a battery pack (not shown) according to an embodiment of the present invention may include one or more battery modules 10 according to an embodiment of the present invention as described above.
- the battery pack includes, in addition to the battery module 10, a housing for accommodating the battery module 10 and various devices for controlling charging and discharging of the battery module 10, such as a BMS, current Sensors, fuses, and the like may be further included.
- a vehicle (not shown) may include the above-described battery module 10 or a battery pack (not shown), and the battery module 10 may be included in the battery pack (not shown). this may be included.
- the battery module 10 according to an embodiment of the present invention is applied to the vehicle (not shown), for example, a predetermined vehicle (not shown) prepared to use electricity such as an electric vehicle or a hybrid vehicle. can
- the present invention relates to a battery module, a battery pack including the same, and an automobile, and is particularly applicable to industries related to secondary batteries.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
Claims (14)
- 복수의 배터리 셀이 적층되는 배터리 셀 적층체;상기 배터리 셀 적층체가 수납되며, 가스가 배출되는 제1 배출구가 형성된 케이스;상기 케이스에 장착되어 상기 가스의 배출 경로를 제공하며, 상기 가스는 배출되지만 화염의 유출은 방지하도록 마련된 배기경로부재; 및상기 배기경로부재를 덮을 수 있도록 상기 케이스에 결합되며, 상기 배기경로부재를 통해 이동한 가스가 배출되는 제2 배출구가 형성되는 덮개를 포함하며,상기 케이스에 포함되는 일 커버는 길이조절 가능하도록 마련되는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 케이스에 형성된 상기 제1 배출구와, 상기 덮개에 형성된 상기 제2 배출구는 서로 반대 방향에 형성되어 있으며,상기 가스가 상기 제1 배출구로부터 상기 배기경로부재에 의해 가이드되면서 상기 제2 배출구로 유출되는 것을 특징으로 하는 배터리 모듈.
- 제2항에 있어서,상기 케이스는,상기 배터리 셀 적층체가 수납되는 하부 커버; 및상기 하부 커버에 결합되고, 상기 배기경로부재가 장착되며, 상기 제1 배출구가 형성되고, 길이가 조절되는 상부 커버를 포함하며,상기 덮개는 상기 상부 커버에 결합되고, 상기 배기경로부재는 상기 덮개와 상기 상부 커버 사이에 위치하는 것을 특징으로 하는 배터리 모듈.
- 제3항에 있어서,상기 상부 커버는,요철 형상의 제1 레일이 형성된 제1 플레이트; 및상기 제1 플레이트의 상기 제1 레일에 대응되도록 요철 형상의 제2 레일이 형성되며, 상기 제1 플레이트에 결합되는 제2 플레이트를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제4항에 있어서,상기 제1 플레이트와 상기 제2 플레이트는 제1 레일과 제2 레일을 따라 서로 이동하면서 길이가 조절되는 것을 특징으로 하는 배터리 모듈.
- 제3항에 있어서,상기 상부 커버의 단부에는 상기 배기경로부재가 삽입되는 삽입홈이 형성된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,복수의 배기경로부재 중 어느 하나의 배기경로부재와, 이웃하는 다른 하나의 배기경로부재는 지그재그로 배치되는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,배기경로부재는,결합홈이 형성된 내측 칸막이;상기 내측 칸막이의 상기 결합홈에 결합되는 적어도 하나의 높이 조절 칸막이; 및상기 내측 칸막이를 덮는 외측 칸막이를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제8항에 있어서,상기 결합홈은 상기 내측 칸막이의 상측 및 하측 중 적어도 하나에 형성되고, 상기 높이 조절 칸막이에는 상기 결합홈의 형상에 대응되는 돌출부가 형성되며,상기 높이 조절 칸막이의 상기 돌출부가 상기 내측 칸막이의 상기 결합홈에 결합되는 것을 특징으로 하는 배터리 모듈.
- 제9항에 있어서,상기 높이 조절 칸막이를 고정하는 고정핀을 더 포함하며,상기 내측 칸막이의 측면에는 관통홀이 형성되고,상기 높이 조절 칸막이에는 복수개의 고정홈이 형성되며,상기 고정핀은 상기 내측 칸막이의 상기 관통홀을 통과하여 상기 높이 조절 칸막이의 복수개의 고정홈 중 하나에 삽입되어 상기 높이 조절 칸막이를 고정하는 것을 특징으로 하는 배터리 모듈.
- 제8항에 있어서,상기 외측 칸막이는 상기 내측 칸막이에 슬라이딩 방식으로 결합되는 것을 특징으로 하는 배터리 모듈.
- 제11항에 있어서,상기 내측 칸막이의 가장자리에는 가이드홈이 형성되고, 상기 외측 칸막이의 가장자리에는 돌기부가 형성되며,상기 외측 칸막이의 상기 돌기부가 상기 내측 칸막이의 상기 가이드홈을 따라 이동하는 것을 특징으로 하는 배터리 모듈.
- 제1항 내지 제12항 중 어느 한 항에 따른 배터리 모듈을 포함하는 배터리 팩.
- 제1항 내지 제12항 중 어느 한 항에 따른 배터리 모듈을 포함하는 자동차.
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CN202280048716.1A CN117616625A (zh) | 2022-02-07 | 2022-11-24 | 电池模块和包括该电池模块的电池组和车辆 |
EP22925096.4A EP4386958A1 (en) | 2022-02-07 | 2022-11-24 | Battery module, and battery pack and vehicle which comprise same |
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KR20210137910A (ko) * | 2020-05-11 | 2021-11-18 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩, 및 자동차 |
KR20220015832A (ko) | 2020-07-31 | 2022-02-08 | 주식회사 닷 | 돌출형 기반 스마트 태블릿 |
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KR20160020234A (ko) | 2014-08-13 | 2016-02-23 | 현대자동차주식회사 | 배터리팩 자동 소화 장치 및 방법 |
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- 2022-11-24 EP EP22925096.4A patent/EP4386958A1/en active Pending
- 2022-11-24 JP JP2023577775A patent/JP2024526118A/ja active Pending
- 2022-11-24 WO PCT/KR2022/018759 patent/WO2023149629A1/ko active Application Filing
- 2022-11-24 CN CN202280048716.1A patent/CN117616625A/zh active Pending
Patent Citations (6)
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KR20140021961A (ko) * | 2012-08-13 | 2014-02-21 | 삼성에스디아이 주식회사 | 배터리 모듈 |
US20160254578A1 (en) * | 2015-02-27 | 2016-09-01 | Gogoro Inc. | Portable electrical energy storage device with in-situ formable fluid channels |
US20180241017A1 (en) * | 2015-10-28 | 2018-08-23 | Murata Manufacturing Co., Ltd. | Electronic apparatus case and battery pack including the same |
KR20210129513A (ko) * | 2020-04-20 | 2021-10-28 | 주식회사 엘지에너지솔루션 | 화염 배출 방지 구조를 갖는 배터리 모듈 및 이를 포함하는 배터리 팩, 그리고 이를 포함하는 자동차 및 ess |
KR20210137910A (ko) * | 2020-05-11 | 2021-11-18 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩, 및 자동차 |
KR20220015832A (ko) | 2020-07-31 | 2022-02-08 | 주식회사 닷 | 돌출형 기반 스마트 태블릿 |
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KR20230119551A (ko) | 2023-08-16 |
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