WO2022186518A1 - 전지 팩 및 이를 포함하는 디바이스 - Google Patents
전지 팩 및 이를 포함하는 디바이스 Download PDFInfo
- Publication number
- WO2022186518A1 WO2022186518A1 PCT/KR2022/002309 KR2022002309W WO2022186518A1 WO 2022186518 A1 WO2022186518 A1 WO 2022186518A1 KR 2022002309 W KR2022002309 W KR 2022002309W WO 2022186518 A1 WO2022186518 A1 WO 2022186518A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- module
- frame
- pack
- insulating member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- 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
- H01M10/64—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
- 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
-
- 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
- H01M10/6554—Rods or plates
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—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
- H01M50/204—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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack and a device including the same, and more particularly, to a battery pack that minimizes heat propagation between adjacent battery modules and a device including the same.
- Secondary batteries which are easy to apply according to product groups and have electrical characteristics such as high energy density, are universally applied to electric vehicles or hybrid vehicles driven by an electric drive source, as well as portable devices, and power storage devices. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of being able to dramatically reduce the use of fossil fuels, but also the fact that no by-products are generated from the use of energy.
- lithium secondary batteries do not have much memory effect compared to nickel-based secondary batteries, so charging and discharging are possible freely. , the self-discharge rate is very low and the energy density is high.
- a lithium secondary battery may be classified into a cylindrical or prismatic secondary battery in which an electrode assembly is embedded in a metal can, and a pouch-type secondary battery in which an electrode assembly is embedded in a pouch of an aluminum laminate sheet, depending on the shape of the exterior material.
- a battery pack having a medium-to-large module structure in which a plurality of secondary batteries are assembled in series or parallel connected battery modules is increasing.
- a plurality of battery cells are connected in series or parallel to each other to form a battery cell stack, thereby improving capacity and output.
- the plurality of battery modules may be mounted together with various control and protection systems such as a battery management system (BMS) and a cooling system to form a battery pack.
- BMS battery management system
- a cooling system to form a battery pack.
- the battery pack has a structure in which a plurality of battery modules are combined, safety and operational efficiency of the battery pack may be problematic when some battery modules are overvoltage, overcurrent, or overheated.
- the capacity of the battery pack is gradually increasing, and accordingly, it is necessary to design a structure to satisfy the strengthened safety standards while the internal energy of the pack is also increased and to secure the safety of the vehicle and the driver.
- the need for a structure capable of preventing internal thermal runaway and the like in advance and minimizing the damage even if it occurs is emerging.
- FIG. 1 is a cross-sectional view of a conventional battery pack.
- FIG. 2 is a diagram schematically illustrating a dotted line area of FIG. 1 .
- a plurality of battery modules 11 are mounted on a pack housing 40 , and a plurality of battery modules 11 are mounted on a cooling plate ( 20) is mounted on the More specifically, referring to FIG. 2 , the battery modules 11 adjacent to each other are mounted on the pack housing 40 , and may be located together on the cooling plate 20 attached to the lower portion of the pack housing 40 . .
- an abnormal phenomenon CE such as overvoltage, overcurrent, or overheating may occur in some of the battery modules 11 adjacent to each other.
- the heat of the battery module 11 in which the abnormal phenomenon CE has occurred may be transferred to the cooling plate 20 , so that heat propagation to other battery modules 11 may be generated.
- the cooling plate 20 is made of aluminum (Al) having high thermal conductivity for cooling performance, so that heat propagation by the cooling plate 20 can be generated more quickly. Due to this, thermal runaway may occur even for other battery modules 11 in which the abnormal phenomenon CE has not occurred, and a chain thermal runaway may also occur for other battery modules 11 located on the same cooling plate 40 . There is a problem that arises.
- the problem to be solved by the present invention relates to a battery pack that minimizes heat propagation between adjacent battery modules and a device including the same.
- a battery pack includes a pack frame in which a plurality of battery modules are mounted to be spaced apart from each other; and a heat insulating member positioned between the lower surface of the battery module and the bottom surface of the pack frame, wherein the battery module includes a battery cell stack in which a plurality of battery cells are stacked, a module for accommodating the battery cell stack a frame, and a heat sink positioned at the bottom of the module frame, wherein the bottom of the module frame constitutes an upper plate of the heat sink, and the bottom of the module frame is in contact with the refrigerant supplied into the heat sink .
- the heat insulating members respectively located under the adjacent battery modules may be spaced apart from each other.
- the heat insulating member positioned under one battery module among the plurality of battery modules and the heat insulating member positioned under the other battery module may be spaced apart from each other.
- the heat insulating member may extend along a lower surface of the battery module.
- the heat insulating member may have a size different from that of the lower surface of the battery module, and may have a larger size than the lower surface of the battery module.
- the heat insulating member may have the same size as the lower surface of the battery module.
- the heat insulating member may have a size different from that of the heat sink, but may have a size larger than that of the cooling member.
- the heat insulating member may have the same size as the heat sink.
- the heat insulating member may be made of expanded polypropylene (EPP) foam.
- the heat sink is coupled to the bottom of the module frame, and includes a lower plate having a recessed part, and a refrigerant may flow between the recessed part and the module frame bottom.
- a protrusion pattern may be formed in the depression.
- a device includes the battery pack described above.
- each battery module includes a heat sink located at the bottom of the module frame, and includes a heat insulating member located between the bottom surface of the battery module and the bottom surface of the pack frame, adjacent battery modules It relates to a battery pack that prevents heat propagation between the liver and a device including the same.
- FIG. 1 is a cross-sectional view of a conventional battery pack.
- FIG. 2 is a diagram schematically illustrating a dotted line area of FIG. 1 .
- FIG. 3 is an exploded perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 4 is a top view of the battery pack of FIG. 3 .
- FIG. 5 is a perspective view of a battery module included in the battery pack of FIG. 3 .
- FIG. 6 is an exploded perspective view of the battery module of FIG. 5 .
- FIG. 7 is a perspective view illustrating a lower surface of the battery module of FIG. 5 .
- FIG. 8 is a diagram schematically illustrating a cross-section taken along the axis A-A' of FIG. 4 .
- planar view it means when the target part is viewed from above, and when it is referred to as “cross-section”, it means when the cross-section obtained by cutting the target part vertically is viewed from the side.
- FIG. 3 is an exploded perspective view of a battery pack according to an embodiment of the present invention.
- 4 is a top view of the battery pack of FIG. 3 .
- a battery pack according to an embodiment of the present invention includes a pack frame in which a plurality of battery modules are mounted to be spaced apart from each other; and a heat insulating member positioned between the lower surface of the battery module and the bottom surface of the pack frame.
- the pack frame 410 may be a lower housing in which a plurality of battery modules 100 are mounted, and may further include an upper cover (not shown) coupled to the pack frame 410 to cover the upper portion of the battery module 100 .
- the upper cover (not shown) is omitted for convenience of explanation, but it is assumed that the battery pack 1000 of the present embodiment is coupled with a generally usable upper cover (not shown). can be explained by
- the pack frame 410 may include a bottom surface on which the plurality of battery modules 100 are disposed, and a sidewall extending upwardly from an edge of the bottom surface.
- An upper cover (not shown) covering the upper portion of the battery module 100 may be coupled to the pack frame 410 to protect an internal electric field.
- various control and protection systems such as a battery management system (BMS) and a cooling system may be mounted inside the pack frame 410 together with the battery module 100 .
- BMS battery management system
- a cooling system may be mounted inside the pack frame 410 together with the battery module 100 .
- the pack frame 410 may be made of a steel or aluminum material. More preferably, the pack frame 410 is made of a steel material having a relatively low thermal conductivity compared to an aluminum material, so that the level of heat energy transfer between adjacent battery modules 100 through the pack frame 410 can be reduced. .
- the present invention is not limited thereto, and any material having sufficient rigidity may be applied to the pack frame 410 .
- the heat insulating member 250 may be located under the battery module 100 . More specifically, in the plurality of battery modules 100 , the heat insulating member 250 may be located under each of the battery modules 100 . That is, in the battery pack 1000 according to the present embodiment, the heat insulating members 250 may be respectively disposed under the battery module 100 mounted on the pack frame 410 . That is, each battery module 100 may be individually or independently disposed on the heat insulating member 250 .
- the insulating members 250 respectively positioned under the adjacent battery modules 100 may be spaced apart from each other.
- the heat insulating member 250 disposed under one battery module 100 may be spaced apart from the heat insulating member 250 disposed under the other adjacent battery module 100 .
- each battery module 100 is positioned on the insulating member 250 spaced apart from each other, and overvoltage and overcurrent generated in some battery modules 100 . , or even if heat due to an abnormal phenomenon (CE) such as overheating is partially transferred to the heat insulating member 250 , the heat transferred to the heat insulating member 250 may not be directly transferred to another adjacent battery module 100 . .
- CE abnormal phenomenon
- the heat insulating member 250 may be positioned between the lower surface of the battery module 100 and the bottom surface of the pack frame 410 .
- the pack frame 410 , the heat insulating member 250 , and the battery module 100 may have a structure in which they are stacked in this order.
- the heat insulating member 250 may extend along the lower surface of the battery module 100 . More specifically, the heat insulating member 250 may extend along the lower surface of the heat sink 200 ( FIG. 6 ).
- the heat insulating member 250 may have a size different from that of the lower surface of the battery module 100 , but may have a larger size than the lower surface of the battery module 100 .
- the heat insulating member 250 may have the same size as the lower surface of the battery module 100 .
- the heat insulating member 250 has a size different from that of the heat sink 200 ( FIG. 6 ) located on the lower surface of the battery module 100 , and has a size larger than that of the heat sink 200 ( FIG. 6 ). can As another example, the heat insulating member 250 may have the same size as the heat sink 200 ( FIG. 6 ).
- the contact area of the heat insulating member 250 with respect to the lower surface of the battery module 100, that is, the heat sink 200 (FIG. 6) is sufficiently secured, and the pack frame 410 in the heat sink 200 (FIG. 6) is provided. It can effectively block the heat transferred to the
- the heat insulating member 250 may be formed of a foam material such as expanded polypropylene (EPP) foam.
- EPP expanded polypropylene
- the heat insulating member 250 is not limited thereto, and any material having excellent heat insulating properties may be applied.
- the heat insulating member 250 may prevent the lower surface of the battery module 100, that is, the heat sink 200 ( FIG. 6 ) and the pack frame 410 from direct contact with each other. That is, it is possible to prevent the heat transferred from the battery module 100 from being directly transferred to the pack frame 410 , and it is possible to prevent the heat generated outside the pack frame 410 from being transferred to the battery module 100 . have.
- FIG. 5 is a perspective view of a battery module included in the battery pack of FIG. 3 .
- 6 is an exploded perspective view of the battery module of FIG. 5 .
- 7 is a perspective view illustrating a lower surface of the battery module of FIG. 5 .
- the plurality of battery modules 100 included in the battery pack 1000 includes a battery cell stack 112 in which a plurality of battery cells 111 are stacked, and It includes a module frame 114 accommodating the battery cell stack 112 , and a heat sink 200 positioned at the bottom of the module frame 114 .
- the battery cell 111 is preferably a pouch-type battery cell.
- the battery cell 111 may be manufactured by accommodating the electrode assembly in a pouch case of a laminate sheet including a resin layer and an inner layer, and then thermally sealing a sealing part of the pouch case.
- the battery cell 111 may be formed in a rectangular sheet-like structure.
- the battery cells 111 may be configured in plurality, and the plurality of battery cells 111 are stacked to be electrically connected to each other to form the battery cell stack 112 .
- the module frame 114 may include an upper cover 115 and a U-shaped frame 116 .
- the U-shaped frame 116 may include a bottom portion and two side portions extending upward from both ends of the bottom portion.
- the bottom portion may cover the lower surface of the battery cell stack 112
- the side portion may cover the side surface of the battery cell stack 112 .
- the upper cover 115 may form a structure that covers the upper and lower left and right sides of the battery cell stack 112 by welding the U-shaped frame 116 to each other in a state in which the corresponding corner portions are in contact with each other.
- the upper cover 115 and the U-shaped frame 116 may be made of a metal material having a predetermined strength.
- the module frame 114 is not limited thereto, and may be a mono frame in the form of a metal plate in which upper and lower surfaces and both sides are integrated.
- the end plate 120 is positioned on the open first side (x-axis direction) and the second side (the opposite direction of the x-axis) of the module frame 114 to cover the front and rear surfaces of the battery cell stack 112 . can be formed. Accordingly, the end plate 120 may physically protect the battery cell stack 112 and other electrical components from external impact.
- a bus bar frame on which the bus bar is mounted and an insulating cover for electrical insulation may be positioned between the battery cell stack 112 and the end plate 120 .
- the module frame 114 extends to the bottom of the module frame 114 , that is, the bottom of the U-shaped frame 116 to pass the end plate 120 . It may include a formed module frame protrusion (116a). At this time, the refrigerant introduced and discharged by the cooling port 150 connected to the upper surface of the module frame protrusion 116a is supplied to and from the heat sink 200 through the module frame protrusion 116a. can be emitted.
- the cooling port 150 includes a refrigerant injection port for supplying a refrigerant to the heat sink 200 and a refrigerant discharge port for discharging the refrigerant from the heat sink 200 .
- the module frame protrusion 116a may include a first module frame protrusion and a second module frame protrusion positioned to be spaced apart from each other on one side of the module frame 114, and the refrigerant injection port is disposed on the first module frame protrusion. and the refrigerant discharge port may be disposed on the second module frame protrusion.
- the bottom of the module frame 114 may constitute an upper plate of the heat sink 200 , and the bottom of the module frame 114 may contact the refrigerant supplied into the heat sink 200 .
- the heat sink 200 may be located under the module frame 114 . More specifically, the heat sink 200 includes a lower plate 210 that forms the skeleton of the heat sink 200 and is directly coupled to the bottom of the module frame 114 by welding, etc., and a depression that is a path through which the refrigerant flows. (240).
- the heat sink 200 may include a heat sink protrusion 200P protruding from one side of the heat sink 200 to a portion where the module frame protrusion 116a is located.
- the heat sink protrusion 200P and the module frame protrusion 116a may be directly coupled to each other by welding or the like.
- the recessed portion 240 of the heat sink 200 corresponds to a portion in which the lower plate 210 is recessed downward.
- the recessed part 240 may be a U-shaped tube with a cross-section cut in the xz plane perpendicular to the direction in which the refrigerant flow path extends, and the bottom of the module frame 114 may be located on the open upper side of the U-shaped tube.
- the space between the recessed part 240 and the bottom of the module frame 114 becomes a region through which the coolant flows, that is, the flow path of the coolant. Accordingly, the bottom of the module frame 114 may be in direct contact with the refrigerant.
- the recessed part 240 of the heat sink 200 there is no particular limitation on the manufacturing method of the recessed part 240 of the heat sink 200, but by providing a structure recessed with respect to the plate-shaped heat sink 200, the U-shaped recessed part 240 with an open upper side may be formed.
- This depression 240 may extend from one of the heat sink protrusions 200P to the other.
- the refrigerant supplied through the refrigerant injection port of the cooling port 150 passes between the module frame protrusion 116a and the heat sink protrusion 200P, and the space between the depression 240 and the bottom of the module frame 114 . is first introduced into Thereafter, the refrigerant moves along the depression 240 , passes between the other module frame protrusion 116a and the heat sink protrusion 200P, and is discharged through the refrigerant discharge port of the cooling port 150 .
- the bottom portion of the module frame 114 may be joined to a portion of the lower plate 210 in which the depression 240 is not formed in the heat sink 200 through welding.
- the above-described cooling performance improvement as well as the load of the battery cell stack 112 accommodated in the module frame 114 is reduced. It may have the effect of supporting and reinforcing the rigidity of the battery module 100 .
- the refrigerant can flow through the depression 240 formed inside the lower plate 210 without leakage.
- the depression 240 is preferably formed over the entire area corresponding to the bottom of the module frame 114 .
- the recessed portion 240 may be bent at least once and lead from one side to the other.
- the depression 240 is preferably bent several times. As the refrigerant moves from the start point to the end point of the refrigerant passage formed over the entire area corresponding to the bottom of the module frame 114 , efficient cooling of the entire area of the battery cell stack 112 may be achieved.
- the refrigerant is a medium for cooling, and there is no particular limitation, but may be cooling water.
- a protrusion pattern 240D may be formed in the recessed portion 240 of the heat sink 200 according to the present exemplary embodiment.
- the width of the refrigerant passage may be formed to be wider, so that the temperature deviation may be more severe.
- the protrusion pattern 240D according to the present exemplary embodiment has the effect of substantially reducing the width of the cooling passage, thereby minimizing the pressure drop and reducing the temperature deviation between the widths of the refrigerant passage. Therefore, it is possible to implement a uniform cooling effect.
- the battery modules 11 adjacent to each other are mounted on the pack housing 40 , and located together on the cooling plate 20 attached to the lower part of the pack housing 40 .
- the heat generated in some of the battery modules 11 is transferred to the cooling plate 20 . Accordingly, there is a risk of heat propagation in which heat generated by thermal runaway in some battery modules 11 is transferred to other battery modules 11 through the cooling plate 20 may occur.
- each battery module 100 implements a cooling integrated structure of the module frame 114 and the heat sink 200, so that some battery modules 100 have a heat sink ( It is possible to prevent the heat transferred to the 200 ) from being transferred to the heat sink 200 of the other battery module 100 . Accordingly, even if heat due to an abnormal phenomenon (CE) such as overvoltage, overcurrent, or overheating generated in some battery modules 100 is partially transferred to the heat sink 200 , heat propagation to the adjacent battery modules 100 is risk can be avoided.
- CE abnormal phenomenon
- the battery module 100 having the above-described integrated cooling structure is cooled individually, so that the cooling efficiency for each battery module 100 can be further increased.
- the space utilization rate on the battery module 100 and the battery pack 1000 on which the battery module 100 is mounted can be further improved.
- the height of the battery module 100 is reduced through the removal of the unnecessary cooling structure, thereby making it possible to reduce costs and increase space utilization.
- the battery module 100 can be arranged compactly, the capacity or output of the battery pack 1000 including a plurality of the battery modules 100 can be increased.
- the battery module 100 inside and It communicates and includes a venting gate 121 capable of emitting flame or heat that may be generated from the inside.
- the venting gate 121 is disposed to face the outside of the battery pack 1000 , and preferably in the first direction (x-axis) in the battery pack 1000 as shown in FIG. 1 . direction) may be arranged to look outward toward both ends.
- the plurality of battery modules 100 may further include a venting induction frame 300 disposed along the edge. More specifically, the plurality of battery modules 100 and the venting induction frame 300 may be mounted in the pack frame 410 .
- At least one rupture part 500 is formed on one sidewall of the pack frame 410 , so that heat or flame generated inside may be discharged to the outside.
- the two rupture parts 500 are exemplified only on one side of the pair of horizontal beams 320 , but the present embodiment is not limited thereto and the rupture parts 500 are also provided on the other horizontal beam 320 .
- the vertical beam 310 may be provided, and the position and number thereof may be appropriately selected as needed.
- venting guide frame 300 may be disposed along the entire edge of the plurality of battery modules 100 .
- the venting induction frame 300 is formed in a tubular shape along each side of the battery pack 1000, and is a pair of vertical beams extending in a first direction (x-axis direction) and a second direction (y-axis direction), respectively. 310 and a pair of horizontal beams 320, which are formed to be able to communicate as a whole.
- the passage is formed to communicate as a whole in the venting induction frame 300 of the rectangular shape made up of the vertical beam 310 and the horizontal beam 320 , and this passage is the venting gate of the battery module 100 .
- this passage is the venting gate of the battery module 100 .
- the venting induction frame 300 acts as a support frame for stably supporting the battery module 100 , not during thermal runaway, to improve the stability of the battery pack 1000 .
- FIG. 8 is a diagram schematically illustrating a cross-section taken along the axis A-A' of FIG. 4 .
- a cell event CE may occur in some battery modules 100 .
- the cell event CE may mean that an abnormal phenomenon such as overvoltage, overcurrent, or overheating occurs within the battery module 100 , and thus the battery module 100 generates a high temperature and gas generation.
- the heat generated in the battery module 100 in which the cell event CE has occurred is transferred through a thermal energy movement path through the heat sink 200 and the heat insulating member 250 included in the battery module 100 .
- the heat generated in the battery module 100 in which the cell event CE has occurred may first be transferred to the heat sink 200 .
- the battery module 100 includes the heat sink 200 individually, respectively, and the battery cell stack 112 . ), the heat transferred to the heat sink 200 is not transferred to other adjacent battery modules 100 .
- some of the heat transferred to the heat sink 200 of the battery module 100 may be transferred to the heat insulating member 250 .
- the heat insulating member 250 blocks some of the heat transferred from the heat sink 200 of the battery module 100 and prevents heat generated from the battery module 100 from being directly transferred to the pack frame 410 . can do. That is, even if a cell event CE occurs in some of the battery modules 100 and a relatively large amount of thermal energy is generated, the thermal energy transferred to the pack frame 410 through the heat insulating member 250 is minimized. and the temperature rise of the adjacent battery module 100 can also be minimized.
- the heat transferred to the insulating member 250 of the battery module in which the cell event CE has occurred is not directly transferred to another battery module (100). More specifically, some of the heat transferred to the heat insulating member 250 of the battery module 100 in which the cell event CE has occurred may be transferred to the pack frame 410 , and the heat transferred to the pack frame 410 . Some of them may be transferred to the heat insulating member 250 of the other adjacent battery module 100 .
- the pack is packed by the heat insulating member 250 of the other adjacent battery module 100. It is possible to effectively block the heat transferred from the frame 410 .
- the battery pack described above may be applied to various devices.
- a device may be applied to transportation means such as an electric bicycle, an electric vehicle, and a hybrid vehicle, but the present invention is not limited thereto, and is applicable to various devices that can use a battery module and a battery pack including the same. belong to the scope of the invention.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (12)
- 복수의 전지 모듈이 서로 이격되게 장착되어 있는 팩 프레임; 및상기 전지 모듈의 하면과 상기 팩 프레임의 바닥면 사이에 위치하는 단열 부재를 포함하고,상기 전지 모듈은, 복수의 전지셀이 적층되어 있는 전지셀 적층체, 상기 전지셀 적층체를 수용하는 모듈 프레임, 및 상기 모듈 프레임의 바닥부에 위치하는 히트 싱크를 포함하고,상기 모듈 프레임의 바닥부가 상기 히트 싱크의 상부 플레이트를 구성하고,상기 모듈 프레임의 바닥부가 상기 히트 싱크 내에 공급되는 냉매와 접촉하는 전지 팩.
- 제1항에서,상기 복수의 전지 모듈 중 서로 인접한 전지 모듈의 하부에 각각 위치한 상기 단열 부재는 서로 이격되어 있는 전지 팩.
- 제2항에서,상기 복수의 전지 모듈 중 하나의 전지 모듈의 하부에 위치한 상기 단열 부재와, 다른 전지 모듈의 하부에 위치한 상기 단열 부재는 서로 이격되어 있는 전지 팩.
- 제3항에서,상기 단열 부재는 상기 전지 모듈의 하면을 따라 연장되어 있는 전지 팩.
- 제4항에서,상기 단열 부재는 상기 전지 모듈의 하면과 상이한 크기를 가지되, 상기 전지 모듈의 하면보다 큰 크기를 가지는 전지 팩.
- 제4항에서,상기 단열 부재는 상기 전지 모듈의 하면과 동일한 크기를 가지는 전지 팩.
- 제4항에서,상기 단열 부재는 상기 히트 싱크의 크기와 상이한 크기를 가지되, 상기 냉각 부재의 크기보다 큰 크기를 가지는 전지 팩.
- 제4항에서,상기 단열 부재는 상기 히트 싱크와 동일한 크기를 가지는 전지 팩.
- 제1항에서,상기 단열 부재는 EPP(Expanded PolyPropylene) 폼(foam)으로 이루어지는 전지 팩.
- 제1항에서,상기 히트 싱크는 상기 모듈 프레임의 바닥부와 결합하되, 함몰부가 형성되어 있는 하부 플레이트를 포함하고,상기 함몰부와 상기 모듈 프레임 바닥부 사이로 냉매가 유동하는 전지 팩.
- 제10항에서,상기 함몰부에 돌출 패턴이 형성되어 있는 전지 팩.
- 제1항에 따른 전지 팩을 포함하는 디바이스.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES22763502T ES3036810T3 (en) | 2021-03-05 | 2022-02-16 | Battery pack and device including the same |
| JP2022576517A JP7636012B2 (ja) | 2021-03-05 | 2022-02-16 | 電池パックおよびこれを含むデバイス |
| CN202280004644.0A CN115699411A (zh) | 2021-03-05 | 2022-02-16 | 电池组和包括该电池组的装置 |
| US18/010,161 US20230299383A1 (en) | 2021-03-05 | 2022-02-16 | Battery pack and device including the same |
| EP22763502.6A EP4148875B1 (en) | 2021-03-05 | 2022-02-16 | Battery pack and device including the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210029158A KR102852584B1 (ko) | 2021-03-05 | 2021-03-05 | 전지 팩 및 이를 포함하는 디바이스 |
| KR10-2021-0029158 | 2021-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022186518A1 true WO2022186518A1 (ko) | 2022-09-09 |
Family
ID=83154571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/002309 Ceased WO2022186518A1 (ko) | 2021-03-05 | 2022-02-16 | 전지 팩 및 이를 포함하는 디바이스 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20230299383A1 (ko) |
| EP (1) | EP4148875B1 (ko) |
| JP (1) | JP7636012B2 (ko) |
| KR (1) | KR102852584B1 (ko) |
| CN (1) | CN115699411A (ko) |
| ES (1) | ES3036810T3 (ko) |
| HU (1) | HUE072149T2 (ko) |
| WO (1) | WO2022186518A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4391157A1 (en) * | 2022-12-14 | 2024-06-26 | SK On Co., Ltd. | Battery pack |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2025518340A (ja) | 2022-09-30 | 2025-06-12 | エルジー エナジー ソリューション リミテッド | 負極および二次電池 |
| KR20250091927A (ko) * | 2023-12-14 | 2025-06-23 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140015301A (ko) * | 2010-12-20 | 2014-02-06 | 로베르트 보쉬 배터리 시스템즈 엘엘씨 | 냉각 및 조립 보조물이 일체화된 다중 전지 배터리 모듈 |
| JP2015090750A (ja) * | 2013-11-05 | 2015-05-11 | 信越ポリマー株式会社 | 熱伝導デバイス及びバッテリーモジュール |
| KR20180038310A (ko) * | 2016-10-06 | 2018-04-16 | 주식회사 엘지화학 | 히트 싱크가 일체형으로 결합된 모듈 케이스를 포함하는 전지모듈 |
| JP2019185845A (ja) * | 2018-03-30 | 2019-10-24 | 三菱ケミカル株式会社 | 充填部材、組電池及び熱伝達の制御方法 |
| KR20190124279A (ko) * | 2017-04-05 | 2019-11-04 | 지멘스 악티엔게젤샤프트 | 냉각 시스템 |
| KR20210029158A (ko) | 2018-06-03 | 2021-03-15 | 람카프 바이오 베타 엘티디. | Ceacam5 및 cd47에 대한 이중특이성 항체 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101130043B1 (ko) * | 2009-07-27 | 2012-03-28 | 주식회사 엘지화학 | 냉각 효율성이 향상된 전지모듈 |
| JP2012094370A (ja) * | 2010-10-27 | 2012-05-17 | Sanyo Electric Co Ltd | 電池モジュール |
| JP5971748B2 (ja) * | 2012-03-16 | 2016-08-17 | 日本電気株式会社 | 蓄電装置及び蓄電システム |
| KR101814735B1 (ko) * | 2013-05-29 | 2018-01-03 | 삼성에스디아이 주식회사 | 배터리 모듈 |
| JP6608653B2 (ja) * | 2015-09-02 | 2019-11-20 | 株式会社東芝 | 電池モジュール |
| JP6593143B2 (ja) * | 2015-12-15 | 2019-10-23 | 三菱自動車工業株式会社 | 車両用電池冷却装置 |
| CN108604718B (zh) * | 2016-03-14 | 2021-06-25 | 松下知识产权经营株式会社 | 复合片以及使用该复合片的电池组 |
| KR102112716B1 (ko) * | 2016-03-16 | 2020-05-19 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
| DE102016205237A1 (de) * | 2016-03-30 | 2017-10-05 | Robert Bosch Gmbh | Temperiervorrichtung eines Batteriemoduls, Verfahren zu dessen Herstellung und Batteriemodul |
| KR102086127B1 (ko) * | 2016-10-31 | 2020-03-06 | 주식회사 엘지화학 | 배터리의 엣지 면에 직접 냉각 방식이 적용된 배터리 팩 |
| EP3331055B1 (en) * | 2016-12-05 | 2020-09-16 | Samsung SDI Co., Ltd. | Battery system including removable battery component carriers |
| KR101916429B1 (ko) * | 2017-03-30 | 2018-11-07 | 엘지전자 주식회사 | 차량용 배터리 팩 및 차량 |
| KR102277035B1 (ko) * | 2018-03-21 | 2021-07-13 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
| CN109148771B (zh) * | 2018-08-23 | 2021-07-23 | 北京新能源汽车股份有限公司 | 电池包 |
| CN109103383A (zh) * | 2018-09-06 | 2018-12-28 | 江苏卡耐新能源有限公司 | 一种动力电池包结构及装配方法 |
| JP7155032B2 (ja) * | 2019-02-07 | 2022-10-18 | 株式会社Subaru | 車載用バッテリの昇温装置 |
| KR102769904B1 (ko) * | 2019-08-07 | 2025-02-17 | 주식회사 엘지에너지솔루션 | 배터리 모듈들의 기계적, 전기적 고정구조를 통합한 배터리 팩 |
-
2021
- 2021-03-05 KR KR1020210029158A patent/KR102852584B1/ko active Active
-
2022
- 2022-02-16 WO PCT/KR2022/002309 patent/WO2022186518A1/ko not_active Ceased
- 2022-02-16 EP EP22763502.6A patent/EP4148875B1/en active Active
- 2022-02-16 US US18/010,161 patent/US20230299383A1/en active Pending
- 2022-02-16 CN CN202280004644.0A patent/CN115699411A/zh active Pending
- 2022-02-16 ES ES22763502T patent/ES3036810T3/es active Active
- 2022-02-16 JP JP2022576517A patent/JP7636012B2/ja active Active
- 2022-02-16 HU HUE22763502A patent/HUE072149T2/hu unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140015301A (ko) * | 2010-12-20 | 2014-02-06 | 로베르트 보쉬 배터리 시스템즈 엘엘씨 | 냉각 및 조립 보조물이 일체화된 다중 전지 배터리 모듈 |
| JP2015090750A (ja) * | 2013-11-05 | 2015-05-11 | 信越ポリマー株式会社 | 熱伝導デバイス及びバッテリーモジュール |
| KR20180038310A (ko) * | 2016-10-06 | 2018-04-16 | 주식회사 엘지화학 | 히트 싱크가 일체형으로 결합된 모듈 케이스를 포함하는 전지모듈 |
| KR20190124279A (ko) * | 2017-04-05 | 2019-11-04 | 지멘스 악티엔게젤샤프트 | 냉각 시스템 |
| JP2019185845A (ja) * | 2018-03-30 | 2019-10-24 | 三菱ケミカル株式会社 | 充填部材、組電池及び熱伝達の制御方法 |
| KR20210029158A (ko) | 2018-06-03 | 2021-03-15 | 람카프 바이오 베타 엘티디. | Ceacam5 및 cd47에 대한 이중특이성 항체 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4148875A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4391157A1 (en) * | 2022-12-14 | 2024-06-26 | SK On Co., Ltd. | Battery pack |
| US12368211B2 (en) | 2022-12-14 | 2025-07-22 | Sk On Co., Ltd. | Battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220125394A (ko) | 2022-09-14 |
| HUE072149T2 (hu) | 2025-10-28 |
| JP2023529736A (ja) | 2023-07-11 |
| JP7636012B2 (ja) | 2025-02-26 |
| US20230299383A1 (en) | 2023-09-21 |
| ES3036810T3 (en) | 2025-09-24 |
| EP4148875B1 (en) | 2025-06-18 |
| EP4148875A4 (en) | 2023-12-13 |
| CN115699411A (zh) | 2023-02-03 |
| KR102852584B1 (ko) | 2025-08-28 |
| EP4148875A1 (en) | 2023-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7566399B2 (ja) | 電池パックおよびそれを含むデバイス | |
| KR102922132B1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
| WO2023282633A1 (ko) | 쿨링 핀들이 합치된 팩 케이스를 구비한 배터리 팩 | |
| WO2021221415A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
| WO2021221339A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2022270780A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2022186518A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021210771A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2022270779A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021246636A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2021210806A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021210805A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2023277305A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021221307A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2022270778A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2021215654A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2021221310A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2021221324A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021221296A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| KR20230027685A (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2021221295A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
| KR20240114910A (ko) | 배터리 팩 | |
| WO2023027435A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
| WO2022186517A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| KR102908854B1 (ko) | 배터리 팩 및 이를 포함하는 디바이스 |
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: 22763502 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2022576517 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2022763502 Country of ref document: EP Effective date: 20221207 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2022763502 Country of ref document: EP |