WO2024112013A1 - 안전성이 강화된 배터리 팩 - Google Patents
안전성이 강화된 배터리 팩 Download PDFInfo
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- WO2024112013A1 WO2024112013A1 PCT/KR2023/018567 KR2023018567W WO2024112013A1 WO 2024112013 A1 WO2024112013 A1 WO 2024112013A1 KR 2023018567 W KR2023018567 W KR 2023018567W WO 2024112013 A1 WO2024112013 A1 WO 2024112013A1
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- Prior art keywords
- battery pack
- present
- battery
- upper frame
- convex block
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- Ceased
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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
- a battery module in which multiple electrically connected secondary batteries are stored together inside a module case is mainly applied. Furthermore, when high power or large capacity is required, a battery pack in which multiple such battery modules are electrically connected is sometimes applied.
- Battery modules or battery packs may be more vulnerable to thermal events because multiple secondary batteries (battery cells) or multiple battery modules are space-intensively crowded.
- thermal runaway occurs inside the battery module, high temperature gas, flame, heat, etc. are generated, and if these are not quickly controlled, thermal propagation occurs. This may cause a chain fire or explosion in the relevant battery module as well as adjacent battery modules.
- conventional battery packs are generally implemented as simply a collection of a plurality of battery modules, so thermal events generated in one battery module can easily be transferred to adjacent battery modules.
- thermal events such as venting gas and flames have a fairly high temperature, so they have the characteristic of rising and are concentrated in the upper area of the battery pack and are discharged strongly. At this time, if the strong straight force of the venting gas, etc. or its force is not properly controlled, the battery may be damaged. More serious safety problems, such as fire or explosion of the pack itself, may occur.
- the present invention was created to solve the above-described problems against the above background, and improves safety by applying an improved structure to the upper space of the battery pack that can destroy the straight path of flames, venting gas, etc. and weaken their force.
- the purpose is to provide a further strengthened battery pack, etc.
- a battery pack according to one aspect of the present invention for achieving the above object includes a pack housing providing an internal space; A plurality of battery modules provided in the internal space; And a plurality of convex blocks having a shape that protrudes downward are provided at the lower part, and may include an upper frame coupled to the upper part of the pack housing.
- the convex block of the present invention is preferably configured to have a plurality of through holes.
- the upper frame of the present invention may be provided with concave blocks in an upwardly recessed shape in areas where the convex blocks are not located.
- the convex block of the present invention may have a shape in which part or all of the lower part is open and may have a shape that is wide at the bottom and narrow at the top depending on the embodiment.
- the convex block of the present invention may include a fixing part fixed to the upper frame, and a side plate extending from the fixing part and having a wing portion that is elastically displaced by an external force.
- the battery pack of the present invention may further include a partition wall separating the internal space of the pack housing.
- the upper frame of the present invention may be provided with a guide lane at the bottom to which the upper part of the partition wall part is coupled.
- the battery module of the present invention may be provided in a partition space, which is an internal space separated by the partition wall, and in this case, the convex block is configured to be provided in plural numbers in each area corresponding to the partition space in the upper frame. It can be.
- a vehicle according to another aspect of the present invention for achieving the above object includes a battery pack according to the present invention.
- venting gas by implementing blocking, confinement or inclusion of venting gas, etc., expansion of contact area, induction of eddy currents, etc., just by applying a simplified structure, the flow of venting gas, etc. It can be weakened or attenuated.
- the battery module can be supported more firmly and stably by applying a structure that physically divides the accommodation space of the battery module and the physical configuration of the pack housing.
- the efficiency of the assembly process can also be improved, and the durability of the pack housing itself can be strengthened structurally.
- the present invention may have various other effects, and these will be described in each implementation configuration, or the description of effects that can be easily inferred by those skilled in the art will be omitted.
- FIG. 1 is a perspective view showing the overall appearance of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating the internal configuration of the battery pack shown in FIG. 1.
- Figures 3 and 4 are perspective views explaining the structure of the upper frame according to an embodiment of the present invention.
- Figure 5 is a bottom perspective view explaining the structure of the upper frame according to an embodiment of the present invention.
- Figure 6 is a diagram explaining a bus bar and a partition wall according to an embodiment of the present invention.
- Figure 7 is a diagram showing an example of a convex block and a concave block according to the present invention provided at the lower part of the upper frame.
- Figure 8 is a diagram explaining the large area expanded by the upper frame, convex blocks, and concave blocks.
- FIG 9 and 10 are diagrams showing convex blocks according to another embodiment of the present invention.
- Figure 11 is a diagram showing an embodiment of a side plate of a convex block according to the present invention.
- FIG. 1 is a perspective view showing the overall appearance of the battery pack 10 according to an embodiment of the present invention
- FIG. 2 is a diagram showing the internal configuration of the battery pack 10 shown in FIG. 1.
- the battery pack 10 of the present invention includes a pack housing 200, a battery module 100, an upper frame 300, and a partition forming an individual space or partition space (DS) in which the modules are accommodated. It may be configured to include (400).
- the pack housing 200 is a component that provides the basic skeletal structure of the battery pack 10, and one or more battery modules 100 are accommodated in its internal space.
- the pack housing 200 may be provided with one or more partition walls 400 having a shape extending in the longitudinal direction (Y-axis direction) or the transverse direction (X-axis direction) as illustrated in the drawing.
- the partition wall One or more battery modules 100 may be provided in each partition space DS divided by the unit 400.
- the pack housing 200 may be configured to include a lower frame 220 and a side frame 210, and the upper frame 300 of the present invention includes the lower frame 220 and the side frame It may be configured to be coupled to these at the upper part (based on the Z axis) of 210.
- At least one of the upper frame 300, lower frame 220, and side frame 210 may be configured in a plate shape, but may be configured in the form of a polyhedron (for example, a rectangular parallelepiped) having a certain thickness or more.
- the upper frame 300 is located at the top of the pack housing 200, and the lower frame 220 may be arranged at a predetermined distance from the upper frame 230 at the lower part of the upper frame 230, and the side frame 210 may be disposed between the upper frame 300 and the lower frame 220 with the upper and lower ends respectively connected.
- the lower frame 220 and the side frame 210 may be integrated with each other, and adjacent frames may be joined by fastening flanges and bolts, as well as laser welding or Of course, this can be done using an ultrasonic welding method or the like.
- the inner surface of one or more of the upper frame 300, lower frame 220, and side frame 210 may be made of clad metal, or a flame retardant material such as GFRP may be attached to the inner surface.
- One or more of the frames 210, 220, and 230 constituting the pack housing 300 are made of a metal material such as high-strength SUS (stainless steel) or are heat-resistant, temperature-resistant, and impact-resistant in order to effectively provide physical protection of the internal components. It may be made of a high-quality plastic material such as ABS resin (acrylonitrile-butadiene-styrene copolymer), and depending on the embodiment, may be made of different materials for each part.
- a metal material such as high-strength SUS (stainless steel) or are heat-resistant, temperature-resistant, and impact-resistant in order to effectively provide physical protection of the internal components.
- It may be made of a high-quality plastic material such as ABS resin (acrylonitrile-butadiene-styrene copolymer), and depending on the embodiment, may be made of different materials for each part.
- a partition space DS in which each battery module 100 is individually accommodated may be formed by the partition wall 400.
- This compartment space (DS) functions as a kind of independent chamber or compartment to physically protect the individual battery modules 100, as well as to spread thermal events generated in the battery module 100 to other adjacent battery modules 100. Or, it performs the function of primarily preventing metastasis.
- the partition space DS formed by the partition wall 400 is formed so that a space P is formed between the partition space DS and the side frame 210 constituting the pack housing 200. It is preferable that one or more of the side frames 210 are installed at positions spaced apart inward.
- the space (P) can be utilized as a venting channel (P) through which venting gas generated in the battery module 100 is discharged, and according to the embodiment, as illustrated in the drawing, a plurality of compartment spaces
- a venting channel (P) can be formed in a kind of track shape encompassing the outer periphery of the (DS), so that venting gas generated from each battery module 100 is discharged through an outlet (E) formed in the side frame 210. It can be induced to be effectively discharged to the outside of the pack housing 200 through the like.
- a guider or venting rib such as a bent shape (not shown in the drawing) is used to destroy the strong straight-line nature of the flame's behavior and thereby weaken the flame. It is more preferable that a bending member for changing direction is provided in the venting channel (P).
- partition 400 forming the partition space DS is preferably made of a material with high heat resistance and physical rigidity, like each frame constituting the pack housing 200.
- some of the partition walls 400 include a venting path (venting channel, P) formed by the space between the side frame 210 of the pack housing 200 and the partition space DS.
- a communicating venting hole 421 may be formed.
- venting hole 421 is formed in a part of the partition wall 400, venting gas generated from the battery module 100 in the partition space DS is vented through the venting hole 421, the venting channel P, and the like. It is discharged to the outside through the outlet (E).
- the drawing shows an example in which battery modules 100 forming a 2 ⁇ 3 matrix group based on the longitudinal (Y-axis) and transverse directions (X-axis) are accommodated in the pack housing 200, but the spatial characteristics and electrical
- battery modules 100 having various combinatorial arrangements, such as 2 ⁇ 4, 2 ⁇ 2, 4 ⁇ 3 matrix groups, etc., depending on capacity, size of power, etc., can be provided in the pack housing 200 through the compartment space DS.
- the battery module 100 accommodated in the compartment space DS may include a module case 110 and a cell assembly (not shown) accommodated inside the module case 110.
- the cell assembly is made up of n battery cells (n is a natural number of 1 or more), and each lead of the n battery cells is assembled through a joining method such as welding or a method mediated by a member of a conductive material to form a battery module.
- a module terminal which is an electrical interfacing electrode of (100) units.
- the battery cells assembled through the battery module 100 may be secondary batteries, and of course, these secondary batteries may be pouch-shaped cells, cylindrical cells, or prismatic cells.
- the method of configuring a battery module using a plurality of battery cells is a well-known technology in this technical field, and is not a core technology of the present invention, so detailed information about it will be omitted.
- a plurality of battery modules 100 provided in the pack housing 200 are electrically connected to each other in parallel, series, or a combination thereof according to appropriate specifications or design requirements required by the battery pack 10.
- the drawing shows module terminals of the same polarity provided on battery modules 100 facing each other in the longitudinal direction (Y-axis direction) interconnected by a bus bar 500.
- bus bar 500 The electrical connection by the bus bar 500 and the configuration of the battery modules 100 electrically connected to each other by the bus bar 500 shown in the drawing are somewhat simplified in order to effectively explain the technical idea of the present invention.
- a connector structure connecting the bus bars 500 to each other may be further included.
- the Z-axis is defined as a reference in the up-down or vertical direction, and from a corresponding perspective, the Y-axis is defined as a reference in the front or rear, and the X-axis is defined as a reference in the left or right direction.
- the XY plane becomes a horizontal plane in the embodiment of the present invention
- the Y-axis direction becomes the longitudinal direction (based on the long axis) of the battery pack 10 or the battery module 100.
- FIG. 3 to 5 are diagrams explaining the structure of the upper frame 300 according to an embodiment of the present invention, and Figure 6 shows the bus bar 500 and the partition wall portion 400 according to an embodiment of the present invention. This is an explanatory drawing.
- the upper frame 300 of the present invention which is coupled to the upper part (based on the Z-axis) of the pack housing 200, is provided at the lower part, and has a convex shape that protrudes in the downward direction (based on the Z-axis) as shown in the drawing. Includes block 310.
- the convex block 310 may be provided on the upper frame 300 in such a way that an independent structure is combined (joined, welded, fastened with fastening means, etc.) to the lower surface of the upper frame 300. , as shown in FIG. 4, it can also be implemented in a way that a certain area of the upper frame 300 protrudes downward through press processing, etc.
- an additional case (not shown) can be coupled to the upper part of the upper frame 300 to strengthen physical durability and increase airtightness.
- a guide lane 330 to which the upper part of the partition 400 described above is coupled may be formed in the lower part of the upper frame 300.
- the guide lane 330 may have a groove line extending in the longitudinal direction so as to fit into the upper part of the partition 400.
- the convenience of assembly with the partition 400 can be improved, and the structure supporting the inside of the battery pack 10 in the vertical direction and the upper frame 300 are physically coupled to the battery pack 10. It can enhance its structural engineering rigidity.
- the guide lane 330 in the area where the bus bar 500 is located is configured to have a space corresponding to the shape or structure of the bus bar 500.
- a seating groove 411 having a depth equal to or greater than the thickness of the bus bar 500 is formed in the partition wall portion 400 to prevent the bus bar 500 from protruding upward.
- the bus bar 500 may be configured to include first and second branches 510 and 520 and a bridge 530 that are electrically connected to the terminal of the battery module 100.
- the bus bar 500 may be covered with a housing made of a non-conductive material for insulation, etc.
- the bridge 530 of the bus bar 500 which is seated in the seating groove 411, has first and second branches 510 and 520 so that a structure corresponding to the seating groove 411 of the partition wall 400 can be implemented. are connected to each other, and are preferably configured to be located at a higher position (based on the Z axis) than the first and second branches 510 and 520.
- the convex block 310 of the present invention is a partition space formed by the partition wall part 400. (DS) That is, it is preferable that a plurality of them are provided at each position corresponding to the battery module 100.
- the venting gas, etc. moves in a random direction, so that mutual collision or cancellation of the venting gas, etc. can be induced, and vortices or vortices are generated in the space between the convex blocks 310. Since vortices are naturally induced, strong flows such as venting gas can be delayed or weakened.
- Figure 7 is a diagram showing an embodiment of the convex block 310 and the concave block 320 according to the present invention provided at the lower part of the upper frame 300
- Figure 8 shows the upper frame 300 and the convex block ( This is a drawing explaining the large area expanded by the concave block 310) and the concave block 320.
- a concave block 320 having an upwardly incoming (recessed) shape may be provided in an area of the upper frame 300 where the convex block 310 is not located.
- the convex block 310 and the concave block 320 are provided together at the lower part of the upper frame 300, as illustrated in FIG. 8, the height of the upper frame 300 itself and the concave block 320 Since the height (h2) and the height (h1) of the convex block 310 are differentiated from each other, the surface area faced by the rising venting gas, etc. can be further expanded, and the temperature decrease due to the increase in contact area can also be realized more effectively.
- the overall mainstream flow such as venting gas moving through the upper space of the battery pack 10 can be subdivided or dispersed into small-scale flows, as well as directivity change and mutual collision.
- the flow of the venting gas or flame itself into a more complex form and pattern hydrodynamically, such as inducing vortices, and allowing their interaction to occur, it is possible to more effectively induce a decrease in the speed and weakening of the force of the venting gas, etc.
- the convex block 310 and the concave block 320 are shown in a rectangular parallelepiped shape, but depending on the embodiment, they may have different shapes, as well as various modifications such as size, height, depth, number, and distribution, and their combined applications. Of course this is possible.
- FIGS. 9 and 10 are diagrams showing a convex block 310 according to another embodiment of the present invention.
- a plurality of through holes 311 may be formed in the convex block 310 of the present invention.
- basic functions such as inducing the mainstream flow such as venting gas to be subdivided or dispersed by the convex block 310 are implemented.
- subsequent force weakening may be induced.
- the stream flowing in through the through hole 311 flows into the interior of the convex block 310 and then flows back through the through hole 311.
- the outflowing streams can interfere with each other, causing these flows to cancel each other, which can reduce the discharge speed of venting gas, etc., and in this process, the power of venting gas, etc. can be further weakened.
- the convex block 310 of the present invention may include a side plate 311 forming a side surface and a lower plate 312 forming a lower surface.
- the lower plate 312 may be connected only to a portion of the side plate 311 so that a portion of the lower portion (based on the Z axis) of the convex block 310 is open.
- venting gas or flame has a strong rising behavior characteristic
- the shape of the convex block 310 is configured in this way, a portion of the venting gas or flame can be more effectively confined.
- a form in which the entire lower part of the convex block 310 is open can also have a similar effect.
- the convex block 310 When the convex block 310 is implemented in a form in which a through hole 311 is formed and a part or all of the lower part is open, it functions as a physical obstacle that inhibits the movement of the mainstream flow and at the same time blocks ventilation gas, etc.
- the contact area can be expanded, which can have the effect of reducing the temperature of venting gas, etc.
- the convex block 310 may be configured to have a shape that is relatively wide at the bottom (based on the Z axis) and relatively narrow at the top, as shown in FIG. 10.
- an additional space can be naturally formed between the diagonal outer side of the convex block 310 and the lower surface of the upper frame 300, and this additional space, unlike the convex block 310, is wide at the top. Since the lower part has a narrow shape, it is difficult for the inflowing venting gas to leak out, so the space between the convex blocks 310 can also function as a space to restrain the venting gas.
- FIG 11 is a diagram showing an embodiment of the side plate 311 of the convex block 310 according to the present invention.
- the side plate 311 of the convex block 310 is specifically connected to a fixing part 311A fixed to the upper frame 300, etc., and is connected to this fixing part 311A, but is elastic when an external force acts. It may be configured to include a wing portion 311B that is displaced.
- the venting gas moves upward, it moves generally in the horizontal direction (XY plane direction) along the upper frame 300.
- the side plate 311 of the convex block 310 is configured to be elastically supported like this. Since some of the moving force of the horizontal component is consumed as a force that elastically deforms the side plate 311, the force such as venting gas can be weakened accordingly.
- the side plate 311 which may be made of metal, exerts a force in the opposite direction to the direction in which the venting gas moves as long as it does not exceed the elastic limit, such as being bent or broken. Since it is continuously applied to the venting gas, etc., the physical force of the venting gas, etc. can be attenuated.
- the drawing shows an embodiment in which the side plate 311 having the fixing part 311A and the wing part 311B is provided on only one side of the convex block 310, but so as to suppress multidirectional flow of venting gas, etc.
- a plurality or all of the sides of the convex block 310 can be implemented as side plates 311 having a fixing part 311A and a wing part 311B.
- the location, size, shape, number, etc. of the fixing portion 311A and the wing portion 311B can be modified in various ways, and the fixing portion 311A
- the wing portion 311B can be formed as an integrated single metal member.
- the battery pack 10 may further include a battery management system (not shown).
- a battery management system (BMS) is mounted in the internal space of the pack housing 200 and may be configured to generally control charging and discharging operations or data transmission and reception operations of the battery cell or battery module 100.
- the battery pack 10 may further include a battery cut-off unit.
- a battery disconnect unit (BDU) may be configured to control the electrical connection of battery cells to manage the power capacity and function of the battery pack 10.
- the battery blocking unit may include a power relay, current sensor, and fuse.
- the battery cut-off unit is also provided in pack units rather than module units, and various cut-off units known at the time of filing of the present invention may be employed.
- the battery pack 10 may further include components of various battery packs known at the time of filing of the present invention.
- it may further include a Manual Service Disconnector (MSD) that allows an operator to cut off power by manually disconnecting the service plug.
- MSD Manual Service Disconnector
- a vehicle (not shown) according to the present invention may include the battery pack 10 according to the present invention described above.
- the vehicle (not shown) according to the present invention may be, for example, any vehicle (not shown) that uses electricity as a driving source, such as an electric vehicle or a hybrid vehicle.
- the vehicle according to the present invention may further include various other components included in the vehicle, such as a vehicle body or a motor, in addition to the battery pack 10 according to the present invention.
- first, second, top, bottom, or top and bottom are only instrumental terms used to relatively distinguish each component (element) from each other, and are used in a specific order, It is obvious that it is not a term used to indicate priority, etc., or a term used to physically distinguish each component (element) on an absolute basis.
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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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
Claims (9)
- 내부공간을 제공하는 팩하우징;상기 내부공간에 구비되는 복수 개 배터리모듈; 및하방으로 돌출된 형상을 가지는 복수 개 볼록블럭이 하부에 구비되며, 상기 팩하우징의 상부에 결합되는 상부프레임을 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 볼록블럭은, 복수 개 관통홀이 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 상부프레임은, 상방으로 함몰된 형상의 오목블럭이 상기 볼록블럭이 위치하지 않는 영역에 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 볼록블럭은, 하부의 일부 또는 전부가 개방된 형상을 가지는 것을 특징으로 하는 배터리 팩.
- 제4항에 있어서,상기 볼록블럭은, 하방이 넓고 상방이 좁은 형상을 가지는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 볼록블럭은, 상기 상부프레임에 고정되는 고정부와, 상기 고정부에서 연장 형성되며 외력에 의하여 탄성 변위되는 날개부를 가지는 사이드플레이트를 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 팩하우징의 내부공간을 분리하는 격벽부를 더 포함하고,상기 상부프레임은,상기 격벽부의 상부가 결합되는 가이드레인이 하부에 구비되는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 배터리모듈은, 상기 격벽부에 의하여 분리된 내부공간인 구획공간에 구비되며,상기 볼록블록은, 상기 상부프레임 중 상기 구획공간에 대응되는 영역마다 복수 개 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항 내지 제8항 중 어느 한 항에 따른 배터리 팩을 포함하는 자동차.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/870,280 US20250329869A1 (en) | 2022-11-21 | 2023-11-17 | Battery pack with enhanced safety |
| EP23894941.6A EP4481924A4 (en) | 2022-11-21 | 2023-11-17 | ENHANCED SAFETY BATTERY PACK |
| CN202380025505.0A CN118830129A (zh) | 2022-11-21 | 2023-11-17 | 具有增强的安全性的电池组 |
| JP2024575791A JP7842911B2 (ja) | 2022-11-21 | 2023-11-17 | 安全性が強化されたバッテリーパック |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2022-0156193 | 2022-11-21 | ||
| KR1020220156193A KR102927405B1 (ko) | 2022-11-21 | 2022-11-21 | 안전성이 강화된 배터리 팩 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024112013A1 true WO2024112013A1 (ko) | 2024-05-30 |
Family
ID=91196062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/018567 Ceased WO2024112013A1 (ko) | 2022-11-21 | 2023-11-17 | 안전성이 강화된 배터리 팩 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250329869A1 (ko) |
| EP (1) | EP4481924A4 (ko) |
| JP (1) | JP7842911B2 (ko) |
| KR (1) | KR102927405B1 (ko) |
| CN (1) | CN118830129A (ko) |
| WO (1) | WO2024112013A1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20260022112A (ko) * | 2024-08-07 | 2026-02-19 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
Citations (6)
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|---|---|---|---|---|
| US20120225335A1 (en) * | 2010-07-29 | 2012-09-06 | Keisuke Naito | Battery module |
| KR20210029132A (ko) * | 2019-09-05 | 2021-03-15 | 삼성에스디아이 주식회사 | 에너지 저장 모듈 |
| KR102281165B1 (ko) * | 2019-09-25 | 2021-07-27 | 주식회사 호원 | 전기 자동차용 배터리 케이스장치 |
| KR20210144463A (ko) * | 2020-05-22 | 2021-11-30 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 |
| KR20220134301A (ko) * | 2021-03-26 | 2022-10-05 | 에스케이온 주식회사 | 배터리 팩 |
| KR20220156193A (ko) | 2021-05-18 | 2022-11-25 | 주식회사 옥광엔지니어링 | 온도 감응형 퀵 클로징 게이트 밸브 조립체 |
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|---|---|---|---|---|
| JP5481842B2 (ja) * | 2008-11-28 | 2014-04-23 | 株式会社Jvcケンウッド | バッテリパック |
| JP2010277736A (ja) * | 2009-05-26 | 2010-12-09 | Sanyo Electric Co Ltd | 電源装置及びこれを備える車両 |
| DE102011054775B4 (de) * | 2011-10-18 | 2018-01-11 | Abertax Research & Development Ltd. | Ventilgesteuerte Batterie mit Druckausgleichsystem |
| CN204189847U (zh) * | 2014-11-17 | 2015-03-04 | 丰田自动车株式会社 | 蓄电装置 |
| KR102256596B1 (ko) * | 2017-04-07 | 2021-06-02 | 주식회사 엘지에너지솔루션 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
| WO2020003800A1 (ja) * | 2018-06-26 | 2020-01-02 | 三洋電機株式会社 | 電源装置及びこれを備える車両 |
| DE102019207347A1 (de) * | 2019-05-20 | 2020-11-26 | Audi Ag | Energiespeicher, Kraftfahrzeug und Gehäusedeckelanordnung |
| US11569546B2 (en) * | 2019-09-05 | 2023-01-31 | Samsung Sdi Co., Ltd. | Energy storage module |
| KR102851944B1 (ko) * | 2020-04-20 | 2025-08-27 | 주식회사 엘지에너지솔루션 | 화염 배출 방지 구조를 갖는 배터리 모듈 및 이를 포함하는 배터리 팩, 그리고 이를 포함하는 자동차 및 ess |
-
2022
- 2022-11-21 KR KR1020220156193A patent/KR102927405B1/ko active Active
-
2023
- 2023-11-17 US US18/870,280 patent/US20250329869A1/en active Pending
- 2023-11-17 CN CN202380025505.0A patent/CN118830129A/zh active Pending
- 2023-11-17 WO PCT/KR2023/018567 patent/WO2024112013A1/ko not_active Ceased
- 2023-11-17 EP EP23894941.6A patent/EP4481924A4/en active Pending
- 2023-11-17 JP JP2024575791A patent/JP7842911B2/ja active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120225335A1 (en) * | 2010-07-29 | 2012-09-06 | Keisuke Naito | Battery module |
| KR20210029132A (ko) * | 2019-09-05 | 2021-03-15 | 삼성에스디아이 주식회사 | 에너지 저장 모듈 |
| KR102281165B1 (ko) * | 2019-09-25 | 2021-07-27 | 주식회사 호원 | 전기 자동차용 배터리 케이스장치 |
| KR20210144463A (ko) * | 2020-05-22 | 2021-11-30 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 |
| KR20220134301A (ko) * | 2021-03-26 | 2022-10-05 | 에스케이온 주식회사 | 배터리 팩 |
| KR20220156193A (ko) | 2021-05-18 | 2022-11-25 | 주식회사 옥광엔지니어링 | 온도 감응형 퀵 클로징 게이트 밸브 조립체 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4481924A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102927405B1 (ko) | 2026-02-12 |
| KR20240074291A (ko) | 2024-05-28 |
| US20250329869A1 (en) | 2025-10-23 |
| CN118830129A (zh) | 2024-10-22 |
| EP4481924A1 (en) | 2024-12-25 |
| JP7842911B2 (ja) | 2026-04-08 |
| JP2025522201A (ja) | 2025-07-11 |
| EP4481924A4 (en) | 2025-08-27 |
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