WO2023282633A1 - 쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 - Google Patents
쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 Download PDFInfo
- Publication number
- WO2023282633A1 WO2023282633A1 PCT/KR2022/009788 KR2022009788W WO2023282633A1 WO 2023282633 A1 WO2023282633 A1 WO 2023282633A1 KR 2022009788 W KR2022009788 W KR 2022009788W WO 2023282633 A1 WO2023282633 A1 WO 2023282633A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- pack
- module
- battery pack
- cooling fins
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 238000013022 venting Methods 0.000 claims abstract description 68
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 4
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 230000003685 thermal hair damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
-
- 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
- H01M50/30—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
- H01M50/342—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
- H01M50/358—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
- H01M50/375—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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack, and more particularly, to a battery pack for lowering the temperature and pressure of a venting gas when a high-temperature venting gas is generated in some battery modules.
- Secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that they do not generate any by-products due to the use of energy as well as the primary advantage of dramatically reducing the use of fossil fuels.
- secondary batteries Accordingly, the application of secondary batteries to various devices is increasing. For example, it is widely used as an energy source for wireless mobile devices or wearable devices, which are multifunctional small products, as well as electric vehicles and hybrid vehicles that are presented as alternatives to conventional gasoline and diesel vehicles. It is also used as an energy source for electric vehicles or as an energy storage system (ESS).
- ESS energy storage system
- each secondary battery has an operating voltage of about 2.5V to 4.5V. Therefore, in the case of an electric vehicle or power storage device requiring large capacity and high output, a battery module in which a plurality of secondary batteries are connected in series and / or parallel, and a battery pack in which the battery modules are connected in series and / or parallel are configured, and the energy I am using it as a circle.
- the number of lithium secondary batteries included in one battery module or the number of battery modules included in one battery pack may increase.
- venting gas when an event such as a short circuit between lithium secondary batteries or an abnormal temperature rise occurs in some battery modules, a large amount of venting gas may be generated from the lithium secondary batteries, and when the deterioration intensifies, the venting gas and the electrode active material and aluminum High-temperature sparks containing particles and the like may be ejected. At this time, the venting gas and the high-temperature spark give thermal damage to adjacent battery modules, and because of this, the possibility of additional events occurring in other battery modules is very high. In addition, high-temperature sparks and venting gas may cause thermal damage to surrounding structures or other battery packs even after being discharged to the outside of the battery pack.
- the present invention was invented to solve the above technical problems, and even if a high-temperature venting gas is generated from a battery module, the temperature and pressure thereof are lowered so that the venting gas can be discharged to the outside of the battery pack, thereby reducing the risk factor due to the venting gas emission. It aims to reduce
- Another object of the present invention is to prevent thermal runaway of a battery pack by minimizing thermal damage to other battery modules even when venting gas and sparks are generated in a certain battery module.
- the battery module and a pack case provided to accommodate the battery module therein, wherein the pack case includes: a bottom cover accommodating the battery module; and a top plate having cooling fins protruding from one surface of the pack case toward the inside and vertically coupled to the bottom cover so as to cover the top of the battery module, wherein the venting gas generated from the battery module
- a battery pack configured to be discharged to the outside of the pack case through empty spaces formed between cooling fins may be provided.
- a plurality of cooling fins may be provided along a first direction, which is a longitudinal direction, or a second direction, which is a width direction, of the top plate from one edge to the other edge of the top plate.
- Ends of the cooling fins provided on the edge of the top plate may be vertically connected to the upper edge of the bottom cover.
- the bottom cover includes a base plate forming a bottom surface; a wall frame forming a wall along the circumference of the base plate; And it may include a first cross beam partitioning the inner space surrounded by the base plate and the wall frame.
- each battery module is disposed in a plurality of module accommodating parts formed by dividing the inner space by the first cross beam, and the top plate is in face-to-face contact with the first cross beam. It may include a second cross beam provided.
- the second cross beam may be formed to be equal to or higher than the cooling fins.
- the battery module may include a plurality of battery cells; and a module case accommodating the plurality of battery cells, and the module case may have a gas venting hole formed on an upper plate covering upper portions of the plurality of battery cells.
- the gas venting hole may have a mesh structure.
- the module case includes an upper plate portion disposed on top of the plurality of battery cells and containing cooling water therein; and a lower plate portion disposed under the plurality of battery cells and having a flow path through which cooling water flows, wherein the upper plate portion is capable of being thermally melted to a first upper plate in contact with the plurality of battery cells.
- a spot and a second upper plate facing the first upper plate may include a gas venting hole capable of releasing gas to the outside and a venting cap formed of a heat-melting material to seal the gas venting hole.
- the lower plate may include a first lower plate contacting the plurality of battery cells and a second lower plate facing the first lower plate, and may include a second melting spot capable of being thermally melted to the first lower plate. there is.
- the first melting spot and the second melting spot are vertically symmetrical with at least one battery cell interposed therebetween. It may be provided symmetrically up and down with the cells interposed therebetween.
- an electric vehicle including the battery pack described above may be provided.
- the temperature and pressure thereof are lowered so that the venting gas can be discharged to the outside of the battery pack, thereby reducing risk factors due to venting gas emission.
- thermal runaway of a battery pack can be prevented by minimizing thermal damage to other battery modules even when venting gas and sparks are generated in one battery module.
- FIG. 1 is a schematic perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a partially exploded perspective view of the battery pack of FIG. 1 .
- FIG. 3 is a perspective view of the top plate of FIG. 2 viewed from the bottom.
- FIG. 4 is a bottom view of the top plate of FIG. 3;
- FIG. 5 is a view corresponding to FIG. 3 and showing a modified example of the top plate of FIG. 3 .
- FIG. 6 is a view corresponding to FIG. 4 and showing a modified example of the top plate of FIG. 3 .
- FIG. 7 is a schematic perspective view of a battery module according to an embodiment of the present invention.
- FIG. 8 is a bottom view of the upper plate of the module case of FIG. 7 .
- FIG. 9 is a cross-sectional view of FIG. 8 .
- FIG. 10 is a view for explaining a cooling and fire extinguishing system of the battery module of FIG. 7 .
- FIG. 11 is a reference diagram for explaining an extinguishing mechanism when a specific battery cell is ignited in a battery module according to an embodiment of the present invention.
- FIG. 12 is a reference diagram for explaining a gas discharge situation of a specific battery cell in a battery module according to an embodiment of the present invention.
- FIG. 13 is a diagram illustrating an example of venting gas discharge of a battery pack according to an embodiment of the present invention.
- FIG. 1 is a schematic perspective view of a battery pack according to an embodiment of the present invention
- FIG. 2 is a partially exploded perspective view of the battery pack of FIG. 1 .
- the battery pack 10 includes a pack case 100 and battery modules 200 accommodated inside the pack case 100 .
- the pack case 100 is a component for protecting the battery modules 200 from external shock, etc., and may be made of a material having excellent mechanical strength, and as shown in FIGS. 1 and 2, the battery modules 200 It may include a bottom cover 110 prepared to accommodate and a top plate 120 provided to cover upper portions of the battery modules 200 and coupled vertically with the bottom cover 110 . Although not shown, when the bottom cover 110 and the top plate 120 are coupled, a coupling method such as bolting, welding, adhesion, or hooking may be applied.
- the pack case 100 of the present invention includes cooling fins 121 disposed between the bottom cover 110 and the top plate 120 .
- the top plate is configured to be supported at a predetermined height from the top of the bottom cover by the cooling fins, so that the venting gas can be discharged along the circumferential direction of the side of the pack case 100. This can be secured wide enough. Accordingly, even when venting gas is generated from the battery module 200 , deformation of the pack case 100 may be prevented because the venting gas is discharged smoothly.
- the venting gas when the venting gas is discharged to the outside of the pack case 100, it can be cooled by the cooling fins 121, thereby minimizing the risk of ignition of other structures around the battery pack 10.
- the battery module 200 has a gas vent 235 provided thereon.
- the venting gas is discharged in the upper direction (Z-axis direction) of the battery module 200 through the gas venting hole 235, and then the upper part of the battery module 200. It is blocked by the top plate 120 covering and moves in the horizontal direction.
- the temperature of the venting gas may be lowered by exchanging heat with the cooling fins 121 until the venting gas reaches the edge region of the top plate 120 .
- the vortex phenomenon occurs significantly inside the pack case 100 until discharged to the outside of the pack case 100 .
- the temperature of the venting gas may be remarkably lowered compared to a case where the cooling fins 121 are not used.
- the cooling fins and the top plate may be made of a metal having excellent thermal conductivity, such as aluminum, in order to cool the venting gas.
- each cooling fin 121 is on one surface of the top plate 120 facing the inside of the pack case 100 (toward the battery module). It may be provided in the shape of a thin plate-like body protruding vertically. Unlike the present embodiment, the cooling fin 121 may be replaced with various shapes such as a fin shape, a rod shape, and an elliptical shape.
- the cooling fins 121 extend from one edge of the top plate 120 to the other edge in a first direction (Y-axis direction) that is the length direction of the top plate 120 or a second direction (X-axis direction) that is the width direction of the top plate 120 . It may be configured to be provided with a plurality at predetermined intervals according to the. For example, the cooling fins 121 may be distributed over the entire area of the top plate 120 except for the area of the second cross beam 123 to be described later, and may be composed of N rows and M columns.
- the cooling fins 121 are configured so that all rows and columns match in front and rear, left and right, or, as in FIGS. 5 and 6 , a row and another row or a column and another column do not match in front and rear and left and right. It can be configured not to.
- the arrangement structure of the cooling fins 121 as shown in FIG. 6 may be effective in generating more vortices due to a complicated discharge path of the venting gas. From this point of view, the arrangement structure of the cooling fins 121 as shown in FIG. 6 may be more advantageous in increasing the amount of heat dissipation of the venting gas.
- the cooling fins 121 provided on the rim of the top plate 120, when the top plate 120 is coupled to the bottom cover 110, the ends of the cooling fins 121 of the bottom cover 110 It may be configured to be vertically connected to the upper edge.
- pin insertion grooves are provided on the upper edge of the bottom cover 110, and the ends of the cooling fins 121 are inserted into the pin insertion grooves so that some of the cooling fins 121 are It can be connected vertically to the upper edge of the bottom cover 110.
- the battery pack 10 has a structure in which the bottom cover 110 in which the battery modules 200 are accommodated is covered with the top plate 120 in which the cooling fins 121 are matched.
- the venting gas generated from the battery module and rising vertically is blocked by the top plate 120, reducing the discharge pressure, and moves toward the side of the pack case.
- the cooling fins 121 Heat exchange with the field and the top plate 120 can be actively made to cool.
- the venting gas escapes to the outside of the pack case 100 through empty spaces O between the outermost cooling fins 121 along the circumferential direction of the side of the pack case 100 .
- the pack case 100 includes the first cross beams 116a and 116b provided on the bottom cover 110 and the second cross beam 123 provided on the top plate 120. contains more
- the bottom cover 110 includes a base plate forming a bottom surface and wall frames 112, 113, 114, and 115 forming a wall along the circumference of the base plate, and the base plate and the wall frames 112, 113, 114, and 115
- the inner space surrounded by ) may be configured to be partitioned by the first cross beams 116a and 116b. That is, as shown in FIG.
- the first cross beams 116a and 116b include a first horizontal beam 116a and a first vertical beam 116b, and one end of the first horizontal beam 116a is a front frame ( 112) and the other end is connected to the rear frame 113, and the first vertical beam 116b has one end connected to the left side frame 114 and the other end connected to the right side frame 115. It can be configured .
- each battery module 200 is disposed in each module accommodating portion S. can be placed.
- the second cross beam 123 includes a second horizontal beam 123a and a second vertical beam 123b formed equal to or higher than the cooling fins 121, ,
- the second horizontal beam 123a extends in the first direction (Y-axis direction) of the top plate 120
- the second vertical beam 123b extends in the second direction (X-axis direction) of the top plate 120.
- the second horizontal beam 123a and the second vertical beam 123b are respectively connected to the first horizontal beam 116a and the second vertical beam 123b. It may be provided to make face-to-face contact with the first vertical beam 116b in a vertical direction.
- the battery modules 200 can be spatially blocked by the first cross beams 116a and 116b and the second cross beam 123.
- the electrical connection between the battery modules 200 may be electrically connected by partially embedding a wiring means such as a cable into the second cross beam 123 so that the battery modules 200 are electrically connected by the wiring means.
- the battery pack 10 of the present invention even if a venting gas or a spark is generated in one battery module 200, propagation of the venting gas or spark to the other battery modules 200 can be prevented. Accordingly, when one battery module 200 is ignited, secondary ignition due to thermal runaway caused by heat propagating to another adjacent battery module 200 can be prevented.
- Figure 7 is a schematic perspective view of a battery module according to an embodiment of the present invention
- Figure 8 is a bottom view of the upper plate of the module case of Figure 7
- Figure 9 is a cross-sectional view of Figure 8
- Figure 10 is the battery of Figure 7 It is a drawing for explaining the cooling and fire extinguishing system of the module.
- the battery module 200 includes a cell stack composed of a plurality of battery cells 210 and a module case 220 accommodating the cell stack.
- a pouch type battery cell 210 may be employed as the battery cell 210 .
- the pouch-type battery cell 210 is a substantially plate-shaped battery cell 210 in which an electrode assembly and an electrolyte are sealed and housed in a pouch-type exterior material, and since it is widely known at the time of filing of the present invention, a detailed description thereof will be omitted.
- the pouch type battery cells 210 are respectively erected in the vertical direction ( ⁇ Z) and stacked in the left and right direction ( ⁇ Y) with their wide surfaces facing each other to form a cell stack.
- a buffer pad or a cooling fin in the form of a thin plate may be further interposed between the pouch type battery cells 210 for the purpose of absorbing swelling or transferring heat.
- the battery cells 210 may expand due to gas generated as a by-product of expansion and contraction of the electrode assembly and charge and discharge during repetitive charging and discharging processes.
- a hollow barrier rib 250 may be added between the battery cells 210 to absorb the expansion force of the battery cells 210 and minimize deformation of the module case 220 .
- the upper and lower edges of the battery cells 210 are fixed to the module case with thermally conductive adhesive, and the coolant W1 is in indirect contact to cool the battery cells 210 can be configured to do so.
- the module case 220 may be made of a material having high mechanical rigidity and formed in a substantially hexahedral box shape in order to accommodate the cell stack and protect it from external shock or vibration.
- the module case 220 of this embodiment includes an upper plate portion 230 disposed above the cell stack, a lower plate portion 240 disposed below the cell stack, and a cell stack. It may be configured in the form of a substantially hexahedral box including four side wall portions 260 surrounding the periphery.
- the side wall portion 260 is a combination of four plates consisting of a front/rear cover plate covering the front and rear parts of the cell stack and a pair of side plates covering the side surface of the cell stack. can
- the module case 220 effectively cools the battery cells 210 in normal times and quickly suppresses ignition of the battery cells 210 in the event of a fire. It can be configured to act as a sink.
- the heat sink refers to a cooling component used to absorb heat by having a flow path through which the cooling water W1 flows.
- the battery module 200 is composed of a cooling water storage tank at the top and a heat sink at the bottom, so that the battery module 200 is normally cooled and water in the cooling water storage tank is injected into the battery module 200 in an emergency. It is made possible
- the top plate 230 of the module case 220 includes a first upper plate 231 in contact with a plurality of battery cells 210 and a surface facing the first upper plate 231.
- a second upper plate 232 is included.
- the first upper plate 231 includes a plurality of first melting spots 233 that can be thermally melted, and the second upper plate 232 has a gas venting hole 235 capable of discharging gas to the outside. And sealing the gas venting hole 235, but may be configured to have a venting hole cap 236 formed of a material that can be melted.
- the first upper plate 231 may be made of aluminum (Al) having excellent thermal conductivity
- the second upper plate 232 may be made of steel having excellent rigidity.
- the first upper plate 231 and the second upper plate 232 made of different materials may be heterojoined by, for example, brazing welding.
- the upper plate 230 having a heterojunction structure of the first upper plate 231 of aluminum and the second upper plate 232 of steel has a high heat absorption rate for the battery cells 210, and high temperature venting gas or It has the advantage of excellent durability against sparks.
- the scope of the present invention is not limited to a heat sink made of aluminum and steel. That is, when manufacturing the upper plate portion 230, both the first upper plate 231 and the second upper plate 232 are made of aluminum for ease of manufacturing process and light weight, or other materials other than aluminum that are lightweight and have excellent rigidity are used. material can also be used.
- the lower plate 240 of the module case 220 includes a first lower plate 241 in contact with the plurality of battery cells 210 and a second lower plate 242 facing the first lower plate 241. and a second melting spot 243 that can be thermally melted to the first lower plate 241.
- the lower plate part 240 has a passage through which cooling water flows, and an inlet port P1 and an outlet port P2 may be connected to one side and the other side of the passage for circulation of the cooling water. Accordingly, the coolant W1 may be supplied to the flow path through the inlet port P1 and discharged to the outside through the outlet port P2.
- the edge portions of the battery cells 210 can be cooled.
- the first melting spot 233 of the upper plate 230 and the second melting spot 243 of the lower plate 240 are melted and the upper plate 230
- the cooling water stored in flows into the module case 220 and can be used to extinguish the battery cell 210.
- the first melting spot 233 and the second melting spot 243 may be provided at vertically symmetric positions with at least one battery cell 210 interposed therebetween, and may have substantially the same configuration.
- the first melting spot 233 may be composed of a through hole 237 formed in the thickness direction of the first upper plate 231 and a sealing cap formed of a material capable of being thermally melted, and the second melting spot 233 may be formed.
- the spot 243 may be composed of a through hole and a sealing cap.
- a plastic resin such as polyethylene (PE) or polypropylene (PP) may be used as a material for the sealing cap.
- PE polyethylene
- PP polypropylene
- the sealing cap made of plastic and the first upper plate 231 or the first lower plate 241 made of aluminum may be integrally molded by an insert injection method.
- the sealing cap may be replaced with other materials such as rubber having thermal meltability and sealing properties.
- the sealing caps located on the top and bottom of the battery cell 210 are caused by the heat generated from the battery cell 210 and the high-temperature venting gas. This heat melts and disappears, and accordingly, the cooling water W1 in the upper plate portion 230 is directly injected into the corresponding battery cell 210 through the through hole. In this case, it is possible to quickly extinguish the battery cell 210 that has ignited the first time, which is effective in preventing heat diffusion to surrounding battery cells 210 .
- a venting gas and a high-temperature spark may be introduced into the inner space of the upper plate 230 through which the cooling water is drained.
- the venting cap 236 blocking the gas venting hole 235 is melted or lost by heat, so that the gas venting hole 235 can be opened.
- the gas venting hole 235 is provided in a mesh structure, it filters out high-temperature sparks and allows only the venting gas to be discharged out of the upper plate 230 .
- the high-temperature spark means an active material detached from an electrode inside the battery cell 210 or molten aluminum particles.
- the inside of the top plate 230 becomes an empty space after the coolant W1 is injected into the corresponding battery cell 210 through the through hole in the inside of the top plate 230 .
- the empty space created in the upper plate portion 230 is used as a gas discharge passage.
- the venting gas rapidly flows due to the pressure difference between the inside and outside of the module case 220. Gas may be discharged to the outside through the venting hole 235 . At this time, the flame or spark may be extinguished due to a decrease in temperature or may be filtered through the gas venting hole 235 having a mesh structure.
- the venting gas coming out of the battery module 200 through the gas venting hole 235 may be discharged to the outside of the pack case 100 as shown in FIG. 13 .
- the four battery modules 200 are spaced by the first cross beams 116a and 116b of the bottom cover 110 and the second cross beam 123 of the top plate 120. Since it is configured to be accommodated in the pack case 100 in a blocked state, as shown in FIG. 13, if the venting gas generated from the battery module 200 located in the area 1 is inside the pack case 100, the areas 2, 3, 4 It can be discharged to the outside of the pack case 100 in a state where the temperature is reduced without being diffused into.
- the battery pack 10 of the present invention even if a high-temperature venting gas is generated in any battery module 200, its temperature and pressure are lowered so that it can be discharged to the outside of the battery pack 10. Risk factors caused by venting gas emissions can be reduced. Also, thermal runaway of the battery pack 10 may be prevented by minimizing thermal damage to other battery modules 200 .
- the battery pack 10 may further include various devices for controlling charging and discharging of the battery modules 200, such as a battery management system (BMS), a current sensor, and a fuse. .
- BMS battery management system
- a current sensor current sensor
- a fuse fuse
- the battery pack according to the present invention can be applied to vehicles such as electric vehicles or hybrid vehicles. That is, the vehicle according to the present invention may include the battery pack according to the present invention.
- the battery pack may be installed in a body frame or a trunk space under a vehicle seat, and may be placed upside down with the top plate of the pack case facing down as needed when installed in a vehicle.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
Claims (12)
- 배터리 모듈; 및상기 배터리 모듈을 내부에 수용하도록 마련된 팩 케이스;를 포함하며,상기 팩 케이스는,상기 배터리 모듈을 수용하는 바틈 커버; 및상기 팩 케이스의 내부 방향을 향하는 일면에 돌출 형성된 쿨링 핀들을 구비하고 상기 배터리 모듈의 상부가 커버되도록 상기 바틈 커버와 상하로 결합되는 탑 플레이트를 포함하고,상기 배터리 모듈에서 생성된 벤팅 가스가 상기 쿨링 핀들 사이에 형성되는 빈 공간들을 통해 상기 팩 케이스의 외부로 배출되게 구성된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 쿨링 핀들은상기 탑 플레이트의 일측 가장자리에서 타측 가장자리까지 상기 탑 플레이트의 길이 방향인 제1 방향 또는 너비 방향인 제2 방향을 따라 복수 개가 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 탑 플레이트의 테두리에 구비되는 쿨링 핀들은 그 끝단이 상기 바틈 커버의 상단 테두리에 상하로 연결된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 바틈 커버는저면을 형성하는 베이스 플레이트; 상기 베이스 플레이트의 둘레를 따라 벽체를 형성하는 벽체 프레임; 및 상기 베이스 플레이트와 상기 벽체 프레임으로 에워싸인 내부 공간을 구획화시키는 제1 크로스 빔을 포함하는 것을 특징으로 하는 배터리 팩.
- 제4항에 있어서,상기 배터리 모듈은 복수 개이고,각 상기 배터리 모듈은 상기 내부 공간이 상기 제1 크로스 빔에 의해 구획되어 형성된 복수 개의 모듈 수용부에 배치되고,상기 탑 플레이트는 상기 제1 크로스 빔과 상하로 대면 접촉하도록 마련된 제2 크로스 빔을 포함하는 것을 특징으로 하는 배터리 팩.
- 제5항에 있어서,상기 제2 크로스 빔은 상기 쿨링 핀들과 동일하거나 더 높게 형성된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 배터리 모듈은,복수의 배터리 셀들; 및상기 복수의 배터리 셀들을 수용하는 모듈 케이스;를 포함하고,상기 모듈 케이스는 상기 복수의 배터리 셀들의 상부를 커버하는 상판부에 가스 벤팅구가 형성된 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 가스 벤팅구는 메쉬 구조로 마련된 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 모듈 케이스는,상기 복수의 배터리 셀의 상부에 배치되고 내부에 냉각수가 들어 있는 상판부; 및상기 복수의 배터리 셀들의 하부에 배치되고 내부에 냉각수가 흐를 수 있는 유로를 구비한 하판부를 포함하고,상기 상판부는 상기 복수의 배터리 셀과 접하는 제1 상부 플레이트에 열 용융될 수 있는 제1 멜팅 스팟;과 상기 제1 상부 플레이트와 마주하는 제2 상부 플레이트에 외부로 가스 방출이 가능한 상기 가스 벤팅구와 상기 가스 벤팅구를 밀봉하되 열 용융 가능한 소재로 형성된 벤팅구 캡을 구비하는 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,상기 하판부는 상기 복수의 배터리 셀들과 접하는 제1 하부 플레이트와 상기 제1 하부 플레이트와 마주하는 제2 하부 플레이트를 구비하고, 상기 제1 하부 플레이트에 열 용융될 수 있는 제2 멜팅 스팟을 구비하는 것을 특징으로 하는 배터리 팩.
- 제10항에 있어서,상기 제1 멜팅 스팟과 상기 제2 멜팅 스팟은 적어도 하나의 상기 배터리 셀을 사이에 두고 상하로 대칭되게 마련된 것을 특징으로 하는 배터리 팩상기 제1 멜팅 스팟과 상기 제2 멜팅 스팟은 적어도 하나의 상기 배터리 셀을 사이에 두고 상하로 대칭되게 마련된 것을 특징으로 하는 배터리 팩.
- 제1항 내지 제11항 중 어느 한 항에 따른 배터리 팩을 포함하는 것을 특징으로 하는 자동차.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/272,287 US20240154204A1 (en) | 2021-07-07 | 2022-07-06 | Battery pack including pack case fitted with cooling fins |
CN202280010399.4A CN116745972A (zh) | 2021-07-07 | 2022-07-06 | 具有装配有冷却片的电池组壳体的电池组 |
JP2023547123A JP2024507463A (ja) | 2021-07-07 | 2022-07-06 | クーリングフィンが合致されたパックケースを備えたバッテリーパック |
EP22837985.5A EP4276983A1 (en) | 2021-07-07 | 2022-07-06 | Battery pack having pack case fitted with cooling fins |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020210089364A KR20230008962A (ko) | 2021-07-07 | 2021-07-07 | 쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 |
KR10-2021-0089364 | 2021-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023282633A1 true WO2023282633A1 (ko) | 2023-01-12 |
Family
ID=84800732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2022/009788 WO2023282633A1 (ko) | 2021-07-07 | 2022-07-06 | 쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240154204A1 (ko) |
EP (1) | EP4276983A1 (ko) |
JP (1) | JP2024507463A (ko) |
KR (1) | KR20230008962A (ko) |
CN (1) | CN116745972A (ko) |
WO (1) | WO2023282633A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20240123063A (ko) | 2023-02-06 | 2024-08-13 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
KR20240145736A (ko) * | 2023-03-28 | 2024-10-07 | 주식회사 엘지에너지솔루션 | 배터리 팩 및 이를 포함하는 배터리 디바이스 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010049942A (ja) * | 2008-08-21 | 2010-03-04 | Gs Yuasa Corporation | 電池システム |
JP5760713B2 (ja) * | 2011-06-03 | 2015-08-12 | トヨタ自動車株式会社 | 電池パック |
KR20170015141A (ko) * | 2015-07-30 | 2017-02-08 | 가부시키가이샤 지에스 유아사 | 축전 장치 |
KR101908441B1 (ko) * | 2012-05-10 | 2018-10-17 | 에스케이이노베이션 주식회사 | 이차전지모듈 |
CN209133578U (zh) * | 2018-12-21 | 2019-07-19 | 天津市赛奥美德工贸有限公司 | 一种汽车用电池箱 |
KR20210089364A (ko) | 2020-01-08 | 2021-07-16 | 현대자동차주식회사 | 저소음 포켓형 휠가드 |
-
2021
- 2021-07-07 KR KR1020210089364A patent/KR20230008962A/ko active Search and Examination
-
2022
- 2022-07-06 EP EP22837985.5A patent/EP4276983A1/en active Pending
- 2022-07-06 WO PCT/KR2022/009788 patent/WO2023282633A1/ko active Application Filing
- 2022-07-06 CN CN202280010399.4A patent/CN116745972A/zh active Pending
- 2022-07-06 JP JP2023547123A patent/JP2024507463A/ja active Pending
- 2022-07-06 US US18/272,287 patent/US20240154204A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010049942A (ja) * | 2008-08-21 | 2010-03-04 | Gs Yuasa Corporation | 電池システム |
JP5760713B2 (ja) * | 2011-06-03 | 2015-08-12 | トヨタ自動車株式会社 | 電池パック |
KR101908441B1 (ko) * | 2012-05-10 | 2018-10-17 | 에스케이이노베이션 주식회사 | 이차전지모듈 |
KR20170015141A (ko) * | 2015-07-30 | 2017-02-08 | 가부시키가이샤 지에스 유아사 | 축전 장치 |
CN209133578U (zh) * | 2018-12-21 | 2019-07-19 | 天津市赛奥美德工贸有限公司 | 一种汽车用电池箱 |
KR20210089364A (ko) | 2020-01-08 | 2021-07-16 | 현대자동차주식회사 | 저소음 포켓형 휠가드 |
Also Published As
Publication number | Publication date |
---|---|
US20240154204A1 (en) | 2024-05-09 |
CN116745972A (zh) | 2023-09-12 |
KR20230008962A (ko) | 2023-01-17 |
EP4276983A1 (en) | 2023-11-15 |
JP2024507463A (ja) | 2024-02-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018186566A1 (ko) | 루버 핀 형상의 열전도 매개체를 구비한 배터리 팩 | |
WO2023282633A1 (ko) | 쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 | |
WO2022203278A1 (ko) | 냉각수를 활용한 배터리 셀의 열확산 방지 구조를 갖춘 배터리 모듈 및 이를 포함하는 배터리 팩 | |
WO2017043889A1 (ko) | 냉각 성능이 개선된 배터리 모듈 | |
WO2022244994A1 (ko) | 가스 벤팅 패스를 구비한 배터리 팩 | |
WO2020189965A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
WO2021221342A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
WO2022149961A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
WO2022244992A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
WO2021210806A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2022270780A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2020145530A1 (ko) | 내부 플레이트를 포함한 배터리 모듈 | |
WO2021221351A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
WO2021210805A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2023121278A1 (ko) | 열관리 가능한 배터리팩 | |
WO2022270779A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2022186518A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2022149962A1 (ko) | 배터리 모듈, 그리고 이를 포함하는 배터리 팩 | |
WO2022225168A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
WO2021221296A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2021221310A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2024019390A1 (ko) | 배터리 모듈 및, 이를 포함하는 배터리 팩 및 이를 포함하는 자동차 | |
WO2022186517A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2024019414A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2023200146A1 (ko) | 안전성이 강화된 배터리 모듈 |
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: 22837985 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18272287 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280010399.4 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202317050698 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023547123 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 2022837985 Country of ref document: EP Effective date: 20230809 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |