WO2022244985A1 - 안전성이 향상된 배터리 모듈 - Google Patents
안전성이 향상된 배터리 모듈 Download PDFInfo
- Publication number
- WO2022244985A1 WO2022244985A1 PCT/KR2022/005263 KR2022005263W WO2022244985A1 WO 2022244985 A1 WO2022244985 A1 WO 2022244985A1 KR 2022005263 W KR2022005263 W KR 2022005263W WO 2022244985 A1 WO2022244985 A1 WO 2022244985A1
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- WO
- WIPO (PCT)
- Prior art keywords
- barrier member
- battery cells
- pouch
- battery module
- battery
- Prior art date
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 152
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims description 22
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 12
- 239000011152 fibreglass Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 43
- 238000013022 venting Methods 0.000 description 34
- 239000011149 active material Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/233—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
-
- 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
- H01M50/293—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 characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- 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, and more particularly, to a battery module with improved safety even in a specific event situation such as thermal runaway, a battery pack including the same, and a vehicle.
- a lithium secondary battery mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
- a lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator therebetween, and an exterior material that seals and houses the electrode assembly together with an electrolyte, that is, a battery case.
- lithium secondary batteries can be classified into a can-type 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 an exterior material.
- secondary batteries have been widely used for driving or energy storage not only in small devices such as portable electronic devices, but also in medium and large-sized devices such as electric vehicles and energy storage systems (ESSs).
- a plurality of these secondary batteries may constitute one battery module in a form in which a plurality of them are stored together in a module case in a state in which they are electrically connected.
- a plurality of battery cells may exist in a dense state in a narrow space to increase energy density inside the battery module.
- an object of the present invention is to provide a battery module configured to effectively suppress a thermal runaway event to improve safety, a battery pack including the same, and a vehicle.
- a battery module for achieving the above object includes a plurality of pouch-type battery cells each having a storage part and a sealing part and stacked with each other; a module case accommodating the plurality of pouch-type battery cells in an inner space; and a barrier member interposed between the accommodating units of adjacent pouch-type battery cells and having at least one side protruding from between the accommodating units of the adjacent pouch-type battery cells and extending from between the sealing portions of the adjacent pouch-type battery cells. do.
- the barrier member may be configured to protrude and extend toward a terrace portion where an electrode lead is located among sealing portions of the pouch type battery cell.
- the plurality of pouch-type battery cells are stacked in a horizontal direction in a state of being erected in a vertical direction
- the barrier member is configured in the form of a plate erected in a vertical direction and may be interposed between the adjacent pouch-type battery cells.
- the battery module according to the present invention further includes a bus bar assembly configured to allow electrode leads of the plurality of pouch-type battery cells to be connected to each other, and at least one end of the barrier member is in contact with the bus bar assembly. can be configured.
- At least one end of the barrier member may be inserted into the inner surface of the bus bar assembly.
- At least a part of a protruding and extending portion between the sealing parts of the adjacent pouch-type battery cells may be configured in a curved shape.
- a portion interposed between the accommodating portions of the battery cells and a portion interposed between the sealing portions of the battery cells may be formed to have different thicknesses.
- the barrier member may include at least one of glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP).
- GFRP glass fiber reinforced plastic
- CFRP carbon fiber reinforced plastic
- the battery module according to the present invention may further include a sealing member configured to surround an end portion of the barrier member.
- a battery pack according to another aspect of the present invention for achieving the above object includes a battery module according to the present invention.
- a vehicle according to another aspect of the present invention for achieving the above object includes a battery module according to the present invention.
- the thermal runaway propagation problem of the battery module can be effectively prevented.
- a cell terrace portion which is a side where an electrode lead is located, may be vulnerable to a chain reaction.
- the terrace portion of an adjacent battery cell may be more reliably protected from gas or flame. Accordingly, a thermal chain reaction between battery cells can be more effectively blocked.
- the present invention may have various other effects, which will be described in each implementation configuration, or descriptions of effects that can be easily inferred by those skilled in the art will be omitted.
- FIG. 1 is a perspective view schematically showing the configuration of a battery module according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing parts of the battery module of FIG. 1 with parts separated.
- FIG. 3 is a perspective view schematically illustrating a configuration of a battery cell included in a battery module according to an embodiment of the present invention.
- FIG. 4 is a cross-sectional view schematically showing some configurations of a battery module according to an embodiment of the present invention.
- FIG. 5 is an enlarged view of portion A2 in FIG. 4 .
- FIG. 6 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 7 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 8 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 9 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 10 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 11 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 12 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 13 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- FIG. 14 is a perspective view schematically illustrating a configuration of a barrier member included in a battery module according to another embodiment of the present invention.
- FIG. 15 is a diagram of a form in which the barrier member and battery cells of FIG. 14 are disposed adjacent to each other.
- FIG. 1 is a perspective view schematically showing the configuration of a battery module according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing parts of the battery module of FIG. 1 with parts separated.
- 3 is a perspective view schematically illustrating a configuration of a battery cell included in a battery module according to an embodiment of the present invention.
- 4 is a cross-sectional view schematically showing some configurations of a battery module according to an embodiment of the present invention. For example, it can be said that FIG. 4 shows an example of a cross-sectional configuration along line A1-A1' in FIG. 1 .
- the battery module according to the present invention includes a pouch type battery cell 100 , a module case 200 and a barrier member 300 .
- the pouch-type battery cell 100 is a pouch-type secondary battery, and may include an electrode assembly, an electrolyte, and a pouch exterior material. Furthermore, as shown in FIG. 3 , the pouch-type battery cell 100 may include a receiving portion indicated by R and a sealing portion indicated by S.
- the accommodating part (R) represents a part where the electrode assembly and the electrolyte are stored
- the sealing part (S) represents a part where the pouch exterior material is fused in a form surrounding the accommodating part (R).
- the pouch type battery cell 100 has four side surfaces (corners) centered on the housing part R. At this time, all four side surfaces may be configured in a sealed form, or only three side surfaces may be configured in a sealed form. In this case, a cell sealed on four side surfaces may be referred to as a four-side sealing cell, and a cell sealed on three side surfaces may be referred to as a three-sided sealing cell.
- the battery cell 100 is configured in an upright form, the front, rear and top ends of the left and right pouches are sealed, and the lower ends of the left and right pouches are not sealed. It may be configured in a folded form while connected to each other. In this case, the battery cell 100 may be said to be sealed on three sides.
- the pouch type battery cells 100 may be included in a plurality of battery modules. Also, each pouch type battery cell 100 may include an electrode lead 110 .
- the electrode lead 110 includes a positive lead and a negative lead, and the positive lead and negative lead may protrude from the same side (corner) or different sides of the battery cell 100 .
- a unidirectional cell when the anode lead and the cathode lead are located on the same side, it is referred to as a unidirectional cell, and when the anode lead and the cathode lead are located on different sides, particularly opposite sides, it may be referred to as a bidirectional cell.
- the module case 200 may be configured to accommodate a plurality of pouch-type battery cells 100 in an internal space. That is, the module case 200 has an empty space formed therein, and a plurality of battery cells 100 can be accommodated in this inner space.
- the module case 200 may include an upper plate, a lower plate, a left plate, a right plate, a front plate, and a back plate to define an internal space.
- the cell stack may be positioned in the limited internal space.
- the module case 200 may be made of metal and/or plastic material.
- the module case 200 may be configured in the form of a mono frame in which an upper plate, a lower plate, a left plate, and a right plate are integrated with each other.
- the front and rear sides of the monoframe may have an open shape, and the front and rear plates are end frames, which are coupled to the front and rear openings of the monoframe, thereby sealing the inner space of the monoframe.
- the module case 200 may be configured in a U-frame shape in which a lower plate, a left plate, and a right plate are integrated with each other.
- the top plate, the front plate, and the back plate may be coupled to the top, front, and rear ends of the U-frame.
- various fastening methods such as welding or bolting may be used.
- the present invention is not limited by a specific material or shape of the module case 200, a coupling method, or the like.
- the barrier member 300 may be interposed between adjacent pouch type battery cells 100 . That is, in a state in which the battery cells 100 are stacked in at least one direction, the barrier member 300 may be interposed between the stacks of battery cells 100 .
- the barrier member 300 in a state in which a plurality of pouch-type battery cells 100 are stacked in the X-axis direction, the barrier member 300 is inserted between adjacent battery cells 100.
- One or more barrier members 300 may be provided in one battery module.
- a plurality of barrier members 300 may be provided and may be interposed between each battery cell 100 .
- the barrier member 300 may be interposed between accommodating parts R of adjacent battery cells 100 . That is, as described above, each pouch-type battery cell 100 may have an accommodating portion R in a central portion, and the barrier member 300 may have an accommodating portion R of the pouch-type battery cell 100. It may be disposed to face the accommodating portion R of the adjacent pouch-type battery cell 100 interposed therebetween.
- barrier member 300 is configured to protrude and extend from between the accommodating parts R of the adjacent pouch-type battery cells 100 to between the sealing parts S of the adjacent battery cells 100. can This will be described in more detail with further reference to FIG. 5 .
- FIG. 5 is an enlarged view of portion A2 in FIG. 4 .
- the barrier member 300 may be interposed between accommodating units R of adjacent pouch-type battery cells 100, as indicated by C1.
- the barrier member 300 may protrude and extend to a portion deviating from the space between the accommodating portions R of adjacent pouch-type battery cells 100, as indicated by C2.
- the protruding extension portion C2 of the barrier member 300 may protrude and extend between the sealing portions S of adjacent battery cells 100 . That is, in the stack of pouch type battery cells 100, the sealing portion S of each battery cell 100 may exist as shown in FIG. 5, and the protruding extension portion C2 of the barrier member 300 ), may also exist in a portion corresponding to these sealing parts (S).
- the barrier member 300 may be made of a material resistant to heat or flame.
- the barrier member 300 may be made of a material such as heat-resistant plastic, ceramic, or metal.
- the safety of the battery module can be further improved. More specifically, according to the embodiment, when a high-temperature venting gas or flame is ejected from a specific battery cell 100, the influence of the venting gas or flame on other battery cells 100 in the vicinity can be effectively blocked.
- the sealing portion S of the battery cell 100 is a portion where fusion is performed, and durability against high temperature, pressure, flame, or the like may be weaker than that of the housing portion R of the battery cell 100 .
- the sealing portion (S) of the battery cell 100 is protected by the protruding and extended portion of the barrier member 300, the venting gas or flame discharged from other battery cells 100 can be prevented or prevented from being affected by, etc. Accordingly, in this case, thermal runaway propagation between the battery cells 100 inside the battery module can be effectively prevented.
- the barrier member 300 may be configured to protrude and extend toward the terrace portion of the pouch type battery cell 100 .
- the pouch type battery cell 100 may have three or four sealing parts S, and the electrode lead 110 may be provided in some of the sealing parts S.
- sealing parts S may be formed on the front, rear, and upper portions of the housing part R, respectively.
- the electrode lead 110 may be provided in the front side sealing part and the rear side sealing part, respectively, like the part indicated by T among the three sealing parts.
- these front and rear sealing parts may be referred to as terrace parts of the battery cell 100 .
- the barrier member 300 may be configured to protrude and extend toward the terrace portion where the electrode lead 110 is located among the sealing portions of the pouch type battery cell 100 .
- a terrace portion may be located on the front side of each battery cell 100, and the terrace portion T is a predetermined distance in the left-right direction (X-axis direction). may be spaced apart.
- the extension part C2 of the barrier member 300 protrudes forward (in the -Y axis direction) from the housing part R side of each battery cell 100, and the space between the adjacent terrace parts T. can be located in
- the barrier member 300 may block between terrace portions T of adjacent battery cells 100 .
- the space where the terrace part T is disposed inside the module case 200 may have a relatively large number of empty spaces compared to other parts of the battery cell 100, particularly, a space where the housing part R is located. Accordingly, the venting gas or flame ejected from the battery cell 100 tends to be concentrated.
- sealing parts other than the terrace part T may be folded.
- the upper sealing portion may be stored inside the module case 200 in a folded state.
- the front sealing part or the rear sealing part, ie, the terrace part T is a part where the electrode lead 110 is located, it can be stored inside the module case 200 as it is without being folded. Therefore, when venting gas or flame is ejected from the inside of a specific battery cell 100, it is often ejected toward the terrace portion T rather than the folded sealing portion S.
- the terrace portion T may be more vulnerable to a thermal chain reaction than other portions.
- the barrier member 300 may block between the terrace portions T of adjacent battery cells 100 . Therefore, even if the venting gas or flame is concentrated or ejected toward the terrace portion T of a specific battery cell 100, the effect on the terrace portion T of another battery cell 100 can be prevented or reduced. can
- a plurality of pouch-type battery cells 100 are stacked in a horizontal direction (X-axis direction) in a state where each is erected in a vertical direction (Z-axis direction).
- each of the pouch-type battery cells 100 may have both wide surfaces disposed in a horizontal direction, for example, in a left-right direction, so that the respective housing units face each other.
- the edge of each pouch-type secondary battery may be disposed to face up, down, front, and rear directions.
- a sealing portion S may be disposed on at least a part of an edge of each pouch-type secondary battery.
- the barrier member 300 may be configured in a plate shape.
- the barrier member 300 may be configured in the form of a plate erected in a vertical direction such that two wide surfaces face the horizontal direction.
- the barrier member 300 may be interposed between adjacent battery cells 100 . Accordingly, the wide surface of the barrier member 300 may face the receiving part R and the sealing part S of the battery cell 100 disposed on one side or both sides.
- the overall volume of the stack of battery cells 100 or the battery module may not increase significantly. Also, in this case, most between the battery cells 100 can be easily blocked by the barrier member 300 .
- the battery module according to the present invention may further include a bus bar assembly 400 .
- the bus bar assembly 400 may be configured such that the electrode leads 110 of the plurality of pouch type battery cells 100 are connectable to each other. More specifically, the bus bar assembly 400 is configured to support the electrode leads 110, facilitate interconnection of the electrode leads 110, and enable sensing of voltage from the electrode leads 110.
- the bus bar assembly 400 may include a module bus bar 410 and a bus bar housing 420 .
- the module bus bar 410 may be made of an electrically conductive material, such as a metal material.
- the module bus bar 410 electrically connects two or more electrode leads 110 or is connected to one or more electrode leads 110 to transmit sensing information to a control unit such as a battery management system (BMS).
- BMS battery management system
- the bus bar housing 420 may be made of an electrically insulating material, such as a plastic material. And, the bus bar housing 420 may be configured such that the module bus bar 410 is seated and fixed. Furthermore, the bus bar housing 420 may have a slit formed therein, as indicated by S1 in FIG. 2 . And, the module bus bar 410 may be attached to the outside of the bus bar housing 420, for example, the front side. In this case, the electrode lead 110 may pass through the slit S1 of the bus bar housing 420 and contact the module bus bar 410 located outside. In particular, the electrode lead 110 may be coupled and fixed to the module bus bar 410 alone or in a stacked state of two or more. At this time, as a coupling fixing method between the electrode lead 110 and the module bus bar 410, a method such as laser welding or ultrasonic welding may be used, but various other fastening methods may be applied.
- a coupling fixing method between the electrode lead 110 and the module bus bar 410 a method such as laser welding
- At least one end of the barrier member 300 may be configured to contact the bus bar assembly 400 .
- the front side end of the barrier member 300 is located on the inner side (rear side) of the bus bar assembly 400 located on the front side of the stack of the plurality of battery cells 100. side) can be in direct contact with the surface.
- the barrier member 300 may come into contact with the inner surface of the bus bar housing 420 provided in the bus bar assembly 400.
- the barrier member 300 by eliminating or minimizing the gap between the end of the barrier member 300 and the bus bar assembly 400, it is possible to prevent venting gas or flame from flowing in and out through this gap. Accordingly, in this case, gas or flame blocking performance between the battery cells 100 by the barrier member 300 may be further improved. In addition, in this case, the fixing force of the barrier member 300 may be improved through frictional force due to contact between the barrier member 300 and the bus bar assembly 400 . Therefore, it is possible to prevent the barrier member 300 from moving due to external shock or internal pressure.
- the barrier member 300 may protrude outward (front and rear) beyond the sealing portion S of the pouch type battery cell 100 in the front and back direction (Y-axis direction).
- the length of the barrier member 300 in the front and rear direction may be equal to or greater than the length of each pouch type battery cell 100 in the front and rear direction.
- the barrier member 300 may be formed to be equal to or longer than the length of the pouch type battery cell 100 in the vertical direction.
- the upper and lower ends of the barrier member 300 may contact the inner surface of the module case 200 , respectively. In this case, gas or flame blocking performance, fixing force, and the like can be stably secured through the front and rear end sides of the barrier member 300 as well as the upper and lower end sides of the barrier member 300 .
- FIG. 6 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- Each of the embodiments included in the present invention, including this embodiment, will be mainly described in terms of differences from other embodiments, and detailed descriptions of parts to which the description of the other embodiments can be applied identically or similarly. omit the explanation.
- the barrier member 300 may have at least one end inserted into the inner surface of the bus bar assembly 400, as indicated by A4.
- the bus bar assembly 400 particularly the bus bar housing 420, may have a groove formed concave outward into which one end of the barrier member 300 can be inserted.
- the bus bar housing 420 located on the front side of the battery cell 100 has an insertion groove G1 concavely formed in the outer direction (-Y axis direction) on the inner surface. can be formed.
- the front side end of the barrier member 300 may be inserted into the insertion groove G1 of the bus bar housing 420.
- the bus bar housing 420 may be configured in a form in which a specific part is bent, as shown in FIG. 6, in order to form the insertion groove G1.
- the bus bar housing 420 may be configured in a form in which the thickness of a specific portion is reduced to form the insertion groove (G1), that is, in a dug form.
- the fixing force of the barrier member 300 can be further improved.
- the internal pressure around the corresponding battery cell 100 increases to pressurize the barrier member 300 in the left-right direction (X-axis direction).
- the left-right movement of the barrier member 300 can be suppressed.
- the sealing force between the end of the barrier member 300 and the bus bar assembly 400 can be stably secured. Therefore, according to the above embodiment, heat/flame propagation prevention performance between cells by the barrier member 300 is further improved, and the arrangement of the battery cells 100 and the barrier member 300 can be stably maintained.
- the adhesive may be filled in the insertion groove G1 of the bus bar housing 420 into which the end of the barrier member 300 is inserted. In this case, fixing force and sealing force to the end of the barrier member 300 may be further improved by the adhesive.
- FIG. 7 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the barrier member 300 protruding between sealing portions of adjacent battery cells 100 may be configured in a curved shape.
- the front side end of the barrier member 300 is between the sealing portion S of the adjacent battery cell 100, particularly the terrace portion T, in the front side direction. It may protrude and extend in (-Y axis direction).
- the protruding and extending portion of the barrier member 300 may be configured in a zigzag shape such that irregularities are formed in the left-right direction (X-axis direction), that is, in the horizontal direction.
- the venting gas or flame ejected from the battery cell 100 may be directed toward the central portion of the corresponding battery cell 100 instead of toward other nearby battery cells 100 .
- the venting gas is indicated by arrow D1 by the curved shape of the left surface of the front end of the barrier member 300. can flow in the left direction.
- the venting gas is released by the curved shape of the right surface of the front end of the barrier member 300, as indicated by arrow D2. can flow in the right direction. Therefore, in this case, the effect of gas or flame on the other battery cells 100 is reduced by directing the gas or flame discharged from the neighboring battery cells 100 in a direction away from the other adjacent battery cells 100. can make it
- the front side end and/or the rear side end of the barrier member 300 interposed between the sealing parts S of the battery cell 100 are configured in a plate shape bent to implement a curved shape. It can be.
- the central portion of the barrier member 300 interposed between the accommodating parts R of the battery cells 100 may be formed in a flat plate shape. In this case, it can be said that the barrier member 300 is configured in the form of a plate having a flat portion and a bending portion.
- all of the sealing portions S of two adjacent battery cells 100 may have curved shapes facing each other.
- the sealing portion S of the left battery cell 100 and the right battery cell 100 are formed by forming the front side end of one barrier member 300 curved in the left and right directions.
- the curved shape may face all of the sealing parts (S) of the.
- FIG. 8 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the barrier member 300 may partially have different thicknesses. Particularly, in the barrier member 300, a portion interposed between the accommodating portions of the battery cells 100 and a portion interposed between the sealing portions of the battery cells 100 may be formed to have different thicknesses.
- the protruding end of the barrier member 300 interposed between the sealing parts (S) is another part, for example, between the accommodating parts (R) of the battery cell 100.
- a portion formed thicker than the intervening portion may be provided.
- the thickness of the portion interposed between the sealing portions, particularly the portion interposed between the terrace portions T is increased, so that the terrace portion according to the barrier member 300 is increased.
- the protective effect can be further enhanced. That is, according to the embodiment, the barrier member 300 is thickly formed between the terrace portions T, so that the venting gas or flame does not affect the terrace portions T of the other battery cells 100 adjacent to each other. can be further suppressed. Moreover, since a relatively wide empty space is formed between the terrace portions T of the battery cells 100, even if the ends of the barrier member 300 are thickly configured as in the above embodiment, the volume of the battery module increases accordingly. problem may not arise. In addition, according to the above configuration, the mechanical strength or durability of the barrier member 300 can be further improved. Accordingly, it is possible to prevent the barrier member 300 from being damaged or damaged by venting gas or flame.
- the barrier member 300 may have an inclined surface formed at a portion located between the sealing portions S, as indicated by E1 and E2 in FIG. 8 .
- these inclined surfaces E1 and E2 may be configured in a form closer to the sealing part in an outward direction (front).
- E1 an inclined surface may be formed on the left surface of the protruding extension portion of the barrier member 300 in a form that approaches the terrace portion T of the left battery cell 100 toward the front.
- an inclined surface may be formed on the right surface of the protruding extension portion of the barrier member 300 in a form approaching the terrace portion T of the right battery cell 100 toward the front.
- the flame when venting gas or flame is generated, it is possible to more effectively suppress the gas or flame from moving toward the adjacent battery cell 100 .
- the flame when a flame is generated in the left battery cell 100, the flame moves forward along the left inclined surface E1 of the barrier member 300, as indicated by arrow D3. , it may be far from the terrace part T of the right battery cell 100 .
- the flame when a flame is generated in the right battery cell 100 in the embodiment of FIG. 8 , the flame moves toward the front side along the right inclined surface E2 of the barrier member 300, as indicated by arrow D4, on the left side. It may be far from the terrace part T of the battery cell 100 . Therefore, in this case, problems such as thermal runaway propagation between the battery cells 100 can be prevented more reliably.
- FIG. 9 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the barrier member 300 may have irregularities, such as those indicated by F1 and F2 , on a surface of a portion protruding and extending between sealing portions of adjacent battery cells 100 .
- concave portions and convex portions may be formed in such irregularities.
- an uneven portion as indicated by F1 is formed on the left surface of the protruding extension portion of the barrier member 300, and may face the sealing portion S of the left battery cell 100, particularly the terrace portion T.
- a concavo-convex portion as indicated by F2 is formed on the right surface of the protruding extension portion of the barrier member 300, and may face the sealing portion S of the right battery cell 100, particularly the terrace portion T.
- FIG. 10 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the barrier member 300 may have protrusions, such as those indicated by P1 and P2, on a surface of a portion protruding and extending between sealing portions of adjacent battery cells 100 .
- a protrusion formed to protrude in the left direction as indicated by P1 may be formed on the left surface of the protruding extension of the barrier member 300 .
- a protrusion formed to protrude in the right direction as indicated by P2 may be formed on the right surface of the protruding extension of the barrier member 300 .
- these protrusions P1 and P2 may be inclined at a predetermined angle in a direction parallel to the stacking direction of the battery cells 100 .
- the protrusions P1 and P2 may be configured to be inclined in a form that becomes farther away from the battery cell 100 toward their ends.
- the protrusion P1 formed on the left surface of the barrier member 300 may be inclined toward the front (-Y axis direction) toward the left.
- the protrusion P2 formed on the right surface of the barrier member 300 may be configured to be inclined toward the front (-Y axis direction) toward the right.
- venting gas or flame discharged from the battery cell 100 from being directed toward another terrace portion of an adjacent battery cell 100 .
- the venting gas when venting gas is discharged from the left battery cell 100, the venting gas is discharged from the front terrace portion S of the left battery cell 100 toward the front side.
- the left protrusion P1 is formed, as indicated by an arrow D5
- the venting gas is directed to the terrace of the left battery cell 100 by the right protrusion P2 as indicated by an arrow D6. It may be discharged in a direction gradually away from the part (T). Therefore, in this case, the gas discharged from each battery cell 100 can be more reliably blocked from affecting the terrace portion of the other battery cell 100 .
- the protrusions P1 and P2 may be formed in a curved shape. That is, the protrusions P1 and P2 may have a curved inclined surface rather than a flat surface.
- the barrier member 300 may include at least one of glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP).
- GFRP glass fiber reinforced plastic
- CFRP carbon fiber reinforced plastic
- the barrier member 300 may be made of a GFRP material or a CFRP material. In this case, the barrier member 300 may be entirely made of GFRP or CFRP material. According to this configuration, the barrier member 300 can be easily manufactured.
- the barrier member 300 may be made of metal, ceramic, or other plastic material together with GFRP or CFRP material. This will be described in more detail with reference to FIG. 11 .
- FIG. 11 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the barrier member 300 may include a body portion indicated by H1 and a reinforcing portion indicated by H2.
- the body portion H1 is formed in a plate shape and may be interposed between the accommodating portions R of the battery cells 100 and between the terrace portions T of the battery cells 100 .
- the reinforcing part H2 may be configured in a form attached to an end of the main body part H1, for example, a front side end. That is, the reinforcing part H2 may be attached to the left and right surfaces of the front end of the body part H1, respectively.
- the body portion H1 and the reinforcing portion H2 may be made of different materials.
- the body portion H1 is made of a material such as metal, ceramic, plastic, or silicon. It can be.
- the reinforcing part H2 may be made of a material that is more resistant to heat or flame than the main body part H1, in particular, GFRP or CFRP material.
- the reinforcing part H2 may be attached to the surface of the body part H1 in a coated form.
- the expensive GFRP or CFRP material is provided only on the terrace portion side, thereby increasing the economic efficiency of the battery module, while flame blocking performance can be stably secured on the terrace portion (T) side.
- the thickness of the portion located between the terrace portions T of the battery cell 100 may be increased. Accordingly, it is possible to prevent damage or damage to the end side of the barrier member 300 where stress due to venting gas or the like can be concentrated, while improving heat/flame blocking stability of the terrace portion T.
- FIG. 12 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the battery module according to the present invention may further include a sealing member 500 .
- the sealing member 500 may be positioned at an end side of the barrier member 300 to surround the end of the barrier member 300 .
- the sealing member 500 may be positioned on the front and rear sides of the barrier member 300 to cover the front and rear ends of the barrier member 300 .
- the sealing member 500 may be interposed between the end of the barrier member 300 and the inner surface of the bus bar assembly 400 to seal the space between them.
- the sealing member may be made of a material having higher elasticity than the barrier member 300 .
- the sealing member may be made of a material such as rubber, silicone, plastic, metal, or CFRP or GFRP having excellent heat resistance.
- the sealing force between the barrier member 300 and the bus bar housing 420 is further improved, so that heat/flame blocking performance by the barrier member 300 can be more stably secured.
- a fitting groove may be formed in the sealing member 500 so that an end portion of the barrier member 300 may be fitted.
- the sealing member 500 may be provided at each end of each barrier member 300 .
- the sealing member 500 may be provided at the front edge and/or the rear edge of each barrier member 300 .
- the sealing member 500 may be provided in a form elongated from the corner of each barrier member 300 .
- the sealing member 500 may be formed to elongate in the vertical direction at the front edge and the rear edge of each barrier member 300 .
- the sealing member 500 may have an inclined surface, as indicated by E3 and E4 in FIG. 12 .
- the inclined surfaces E3 and E4 may be configured to approach the sealing portion of the battery cell 100 in an outward direction (front direction).
- the left inclined surface E3 of the sealing member 500 is inclined toward the front (-Y axis direction) to approach the terrace part T of the left battery cell 100.
- the right inclined surface E4 of the sealing member 500 is inclined toward the front (-Y axis direction) so as to approach the terrace part T of the right battery cell 100. It can be.
- venting gas or flame discharged from the battery cell 100 may be suppressed from being directed toward the terrace portion of another adjacent battery cell 100 .
- the flames when flames are discharged from the left battery cell 100, the flames gradually move to the left as indicated by arrow D7 at the front left side of the barrier member 300. It can be discharged in an inclined form. Accordingly, the flame discharged from the left battery cell 100 may gradually move away from the terrace portion T of the right battery cell 100 .
- the flame when the flame is discharged from the right battery cell 100, in the front right side of the barrier member 300, the flame is gradually inclined to the right as it goes forward, as indicated by arrow D8.
- the flame discharged from the right battery cell 100 may gradually move away from the terrace portion T of the left battery cell 100 . Therefore, in this case, thermal runaway between the battery cells 100, propagation of flame, etc., fire spread, etc. can be more effectively prevented.
- FIG. 13 is a cross-sectional view schematically showing some cross-sectional configurations of a battery module according to another embodiment of the present invention.
- the battery module according to the present invention may further include a mesh member 600 .
- the mesh member 600 may be located at a coupling portion between the barrier member 300 and the bus bar assembly 400.
- the mesh member 600 may be in contact between the end of the barrier member 300 and the inner surface of the bus bar housing 420.
- the mesh member 600 may be adhesively fixed to the barrier member 300 and the bus bar housing 420, respectively.
- the mesh member 600 may be attached to the left and right surfaces of the front end of the barrier member 300, respectively. And, in each of these mesh members 600, other parts not attached to the barrier member 300 may be attached to the bus bar housing 420.
- the emission suppression performance of sparks, active material particles, etc. can be further improved.
- active material particles, sparks, flames, or the like flow along the surface of the mesh member 600, their movement can be suppressed by the concave-convex structure formed on the mesh member 600.
- the venting gas in order for the venting gas to be directed to the joint between the end of the barrier member 300 and the bus bar housing 420, it must pass through the mesh member 600, such as active material particles included in the venting gas. It can be filtered by this mesh member 600.
- the position of the barrier member 300 can be stably maintained.
- durability or mechanical rigidity of the end side of the barrier member 300 may be improved by the mesh member 600 .
- FIG. 14 is a perspective view schematically illustrating a configuration of a barrier member 300 included in a battery module according to another embodiment of the present invention.
- FIG. 15 is a diagram of a form in which the barrier member 300 and the battery cell 100 of FIG. 14 are disposed adjacent to each other.
- the barrier member 300 may have different thicknesses in the vertical direction with respect to ends interposed between the terrace portions T.
- the thickness of the central portion of the barrier member 300 in the vertical direction may be thicker than that of upper and lower portions of the barrier member 300.
- the central portion such as the portion marked with I, may be thicker than the top or bottom thickness.
- the thick portion at the end of the barrier member 300 may be a portion facing the electrode lead 110 . That is, the thickness of the portion facing the electrode lead 110 of the barrier member 300 may be thicker than that of other portions.
- the gas or flame discharged from a specific battery cell 100 raises the temperature of the electrode lead 110 of another battery cell 100 located beyond the barrier member 300. can be prevented more reliably.
- the thick portion (I) of the barrier member 300 supports the electrode lead 110 and suppresses the movement of the electrode lead 110 in the left and right directions due to external impact or gas pressure. can do. Accordingly, damage or breakage of the electrode lead 110 can be more effectively prevented.
- the venting gas or flame may flow to the upper or lower side of the electrode lead 110 instead of toward the side. Accordingly, damage to the electrode lead 110 due to venting gas or flame may be prevented.
- a battery pack according to the present invention may include one or more battery modules according to the present invention described above.
- the battery pack according to the present invention includes various other components other than the battery module, such as components of the battery pack known at the time of filing of the present invention, such as BMS, bus bars, pack cases, relays, and current sensors. can include more.
- the battery module 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 module according to the present invention or the battery pack according to the present invention. In addition, the vehicle according to the present invention may further include various other components included in the vehicle in addition to the battery module or the battery pack. For example, a vehicle according to the present invention may further include a control device such as a vehicle body, a motor, and an electronic control unit (ECU), in addition to the battery module according to the present invention.
- a control device such as a vehicle body, a motor, and an electronic control unit (ECU), in addition to the battery module according to the present invention.
- ECU electronice control unit
- the battery module according to the present invention may be applied to an energy storage system (ESS). That is, the energy storage system according to the present invention may include the battery module according to the present invention or the battery pack according to the present invention.
- ESS energy storage system
- R storage part
- S sealing part
- T terrace part
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (11)
- 각각 수납부 및 실링부를 구비하며 상호 적층된 다수의 파우치형 배터리 셀;상기 다수의 파우치형 배터리 셀을 내부 공간에 수납하는 모듈 케이스; 및인접하는 파우치형 배터리 셀의 수납부 사이에 개재되며, 적어도 일측이 상기 인접하는 파우치형 배터리 셀의 수납부 사이로부터 상기 인접하는 파우치형 배터리 셀의 실링부 사이까지 돌출 연장되게 구성된 배리어 부재를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 배리어 부재는, 상기 파우치형 배터리 셀의 실링부 중 전극 리드가 위치하는 테라스부 측으로 돌출 연장되도록 구성된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 다수의 파우치형 배터리 셀은, 수직 방향으로 세워진 상태에서 수평 방향으로 적층되며,상기 배리어 부재는, 수직 방향으로 세워진 플레이트 형태로 구성되어 상기 인접하는 파우치형 배터리 셀 사이에 개재된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 다수의 파우치형 배터리 셀의 전극 리드가 서로 연결될 수 있도록 구성된 버스바 어셈블리를 더 포함하고,상기 배리어 부재는, 적어도 일측 단부가 상기 버스바 어셈블리에 접촉되게 구성된 것을 특징으로 하는 배터리 모듈.
- 제4항에 있어서,상기 배리어 부재는, 적어도 일측 단부가 상기 버스바 어셈블리의 내면에 삽입된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 배리어 부재는, 상기 인접하는 파우치형 배터리 셀의 실링부 사이로 돌출 연장된 부분의 적어도 일부가 굴곡진 형태로 구성된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 배리어 부재는, 상기 배터리 셀의 수납부 사이에 개재된 부분과 상기 배터리 셀의 실링부 사이에 개재된 부분의 두께가 서로 다르게 형성된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 배리어 부재는, GFRP(Glass Fiber Reinforced Plastic) 및 CFRP(Carbon Fiber Reinforced Plastic) 중 적어도 하나의 재료를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 배리어 부재의 단부를 감싸도록 구성된 실링 부재를 더 포함하는 것을 특징으로 하는 배터리 모듈.
- 제1항 내지 제9항 중 어느 한 항에 따른 배터리 모듈을 포함하는 배터리 팩.
- 제1항 내지 제9항 중 어느 한 항에 따른 배터리 모듈을 포함하는 자동차.
Priority Applications (4)
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JP2023532828A JP2023551523A (ja) | 2021-05-20 | 2022-04-12 | 安全性が向上したバッテリーモジュール |
US18/265,188 US20240106068A1 (en) | 2021-05-20 | 2022-04-12 | Battery module with improved safety |
EP22804840.1A EP4239768A4 (en) | 2021-05-20 | 2022-04-12 | BATTERY MODULE WITH IMPROVED SAFETY |
CN202280008494.0A CN116783764A (zh) | 2021-05-20 | 2022-04-12 | 具有提高的安全性的电池模块 |
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KR20210065127 | 2021-05-20 | ||
KR10-2021-0065127 | 2021-05-20 | ||
KR10-2022-0007727 | 2022-01-19 | ||
KR1020220007727A KR102713991B1 (ko) | 2021-05-20 | 2022-01-19 | 안전성이 향상된 배터리 모듈 |
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WO2022244985A1 true WO2022244985A1 (ko) | 2022-11-24 |
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EP (1) | EP4239768A4 (ko) |
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WO (1) | WO2022244985A1 (ko) |
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WO2024181814A1 (ko) * | 2023-03-02 | 2024-09-06 | 주식회사 엘지에너지솔루션 | 화염배출 차단유닛이 구비된 배터리 모듈 및 이를 포함하는 배터리 팩 |
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KR20210065127A (ko) | 2018-09-21 | 2021-06-03 | 마쉬넨파브릭 레인하우센 게엠베하 | 전력 변환기의 동작 상태의 분석 기술 |
KR20200106378A (ko) * | 2019-03-04 | 2020-09-14 | 주식회사 엘지화학 | 스웰링 흡수 및 열 차단 기능을 갖는 패드 복합체를 구비하는 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
CN212136508U (zh) * | 2020-04-02 | 2020-12-11 | 恒大新能源技术(深圳)有限公司 | 一种电池组件 |
KR20220007727A (ko) | 2020-07-10 | 2022-01-18 | 쟝쑤 치이 테크놀러지 컴퍼니 리미티드 | 일방향의 연속 섬유 강화 열가소성 복합 재료의 제조 방법 및 설비 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2024181814A1 (ko) * | 2023-03-02 | 2024-09-06 | 주식회사 엘지에너지솔루션 | 화염배출 차단유닛이 구비된 배터리 모듈 및 이를 포함하는 배터리 팩 |
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EP4239768A1 (en) | 2023-09-06 |
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US20240106068A1 (en) | 2024-03-28 |
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