WO2023249299A1 - 배터리 모듈 프레임 - Google Patents
배터리 모듈 프레임 Download PDFInfo
- Publication number
- WO2023249299A1 WO2023249299A1 PCT/KR2023/007996 KR2023007996W WO2023249299A1 WO 2023249299 A1 WO2023249299 A1 WO 2023249299A1 KR 2023007996 W KR2023007996 W KR 2023007996W WO 2023249299 A1 WO2023249299 A1 WO 2023249299A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- battery module
- module frame
- ventilation
- aluminum
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007769 metal material Substances 0.000 claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims description 62
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 238000003466 welding Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 230000003110 anti-inflammatory effect Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- 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
- H01M10/64—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
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
-
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
- H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
- H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module frame, which prevents the spread of secondary damage such as external fire or explosion by preventing the flame from being exposed outside the frame even if the battery cell mounted inside the frame overheats and catches fire. It concerns the battery module frame.
- secondary batteries can be recharged and have been extensively researched and developed in recent years due to their small size and high capacity.
- Secondary batteries are classified into coin-shaped batteries, cylindrical batteries, square-shaped batteries, and pouch-shaped batteries, depending on the shape of the battery case.
- the electrode assembly mounted inside the battery case in a secondary battery is a power generating element capable of charging and discharging consisting of a stacked structure of electrodes and a separator.
- thermal runaway occurring in one secondary battery causes a thermal propagation phenomenon in which other secondary batteries in the surrounding area are continuously overheated.
- flame generated from an overheated secondary battery is exposed to the outside, it can not only damage surrounding devices but also spread to secondary damage such as fire or explosion, so it is necessary to prepare measures against such fire risks.
- Patent Document 001 Korean Patent Publication No. 2020-0078344 (published on July 1, 2020)
- the present invention aims to provide a battery module frame that can suppress the spread of secondary damage such as external fire or explosion by preventing the flame from being exposed to the outside of the frame even if the battery cell mounted inside overheats and catches fire. There is a purpose.
- the present invention relates to a battery module frame accommodating a plurality of battery cells therein.
- the battery module frame includes a first layer made of aluminum or an aluminum alloy material, and laminated on the first layer, It includes a second layer made of a mesh-structured metal material and a third layer laminated on the second layer and made of an aluminum or aluminum alloy material.
- the battery module frame may be molded together by press processing in a state in which the first to third layers are stacked.
- a fastening portion is formed in the first layer or the third layer, and the fastening portion may be a welding portion or a bolting portion.
- the second layer may be made of a metal material having a higher melting point than the melting points of the first layer and the third layer.
- the metal material forming the second layer may be steel or stainless steel.
- a ventilation portion exposing the second layer to a portion of the first layer and the third layer may be formed on at least one surface of the battery module frame.
- the ventilation portion may be formed on the upper surface of the battery module frame.
- a plurality of ventilation units may be formed in a diagonal direction.
- the mesh structure of the second layer included in the upper surface of the battery module frame may be denser than the mesh structure of the second layer included in the other surface.
- the inner ventilation portion formed in the first layer and the outer ventilation portion formed in the third layer do not overlap each other.
- outer vent portion formed in the third layer may be spaced diagonally apart from the inner vent portion formed in the first layer.
- the outer ventilation part may include a plurality of ventilation holes whose ventilation area increases as the distance from the inner ventilation part increases.
- the battery module frame of the present invention having the above configuration is made of a composite material in which a structural layer of aluminum material and a metal layer of a mesh structure between them are combined in a sandwich form, thereby forming a lightweight frame structure and having an internal structure at the same time. Even if a flame occurs, the mesh structure produces an anti-inflammatory effect and prevents the flame from being discharged to the outside.
- the risk of fire can be further reduced by optimizing the arrangement and shape of the ventilation portion so that flames generated inside can be effectively extinguished.
- FIG. 1 is a diagram showing an example of a battery module including a battery module frame of the present invention.
- Figure 2 is a diagram showing the cross-sectional structure of the battery module frame before press forming.
- Figure 3 is a diagram showing an example of forming a main frame through press molding.
- Figure 4 is a view showing an embodiment in which ventilation holes are formed in the upper plate.
- Figure 5 is a diagram showing the mesh structure of the main frame and the upper plate.
- Figure 6 is a diagram showing an example of connecting the main frame and the upper plate with bolts.
- Figure 7 is a diagram showing the arrangement structure of the inner ventilation part and the outer ventilation part.
- the present invention relates to a battery module frame accommodating a plurality of battery cells therein.
- the battery module frame includes a first layer made of aluminum or an aluminum alloy material, and laminated on the first layer, It includes a second layer made of a mesh-structured metal material and a third layer laminated on the second layer and made of an aluminum or aluminum alloy material.
- the battery module frame of the present invention having the above configuration is made of a composite material in which a structural layer of aluminum material and a metal layer of a mesh structure between them are combined in a sandwich form, thereby forming a lightweight frame structure and having an internal structure at the same time. Even if a flame occurs, the mesh structure produces an anti-inflammatory effect and prevents the flame from being discharged to the outside.
- FIG. 1 is a diagram showing an example of a battery module 10 including the battery module frame 100 of the present invention.
- the battery module 10 refers to a battery assembly in which a certain number of battery cells are bundled into a frame to protect them from external shock, heat, vibration, etc.
- the battery module 10 consists of a plurality of battery cells connected to each other in series and/or parallel, and is embedded in a battery module frame 100, which is a mechanical structure.
- Each battery cell plays a fundamental role in storing energy and supplying it to the outside when needed, but since the capacity of the battery cells alone is small, a module is made that bundles them together, and further, several modules are combined to create a large-capacity battery pack.
- the present invention relates to a battery module frame 100, which is a mechanical structure that protects a plurality of battery cells.
- the battery module 10 shown as an example in FIG. 1 includes a battery cell assembly 400 in which a plurality of battery cells are connected in series and/or parallel to form one assembly. Both ends of the battery cell assembly 400 are provided with structures that are mechanically and electrically coupled to the end plate assembly 500.
- the battery module frame 100 includes a main frame 102 that has a " ⁇ "-shaped cross section and forms a space to accommodate the battery cell assembly 400 therein, and an open upper surface of the main frame 102. It includes a covering top plate (104).
- end plate assemblies 500 are coupled to both open sides of the battery module frame 100 to seal the battery module 10.
- the end plate assemblies 500 are also included in the battery module frame 100. can do.
- the battery module 10 has a polyhedral shape that accommodates a plurality of battery cells, and has a hexahedral shape in FIG. 1, and the cross-sectional structure of the battery module frame 100 is shown in FIG. 2. That is, FIG. 2 shows the cross-sectional structure of the main frame 102 and the upper plate 104, and further, the end plate assembly 500 may also have the cross-sectional structure of FIG. 2.
- the battery module frame 100 includes a first layer 110 made of aluminum or aluminum alloy material, and a second layer laminated on the first layer 110 and made of a mesh-structured metal material ( 120) and a third layer 130 laminated on the second layer 120 and made of aluminum or aluminum alloy material.
- the battery module frame 100 of the present invention is a composite material in which structural layers of the first layer 110 and the third layer 130 made of aluminum material, and a metal layer with a mesh structure between the structural layers are combined in a sandwich form.
- the structural layer means that the first layer 110 and the third layer 130 made of aluminum are layers that maintain the mechanical structure of the battery module frame 100.
- the second layer 120 sandwiched between the first layer 110 and the third layer 130 made of aluminum is made of a metal layer with a mesh structure.
- a metal layer with a mesh structure can be understood in a broad sense as a porous metal layer.
- the second layer 120 may be formed of a metal net, a wire mesh, or a metal thin film with a plurality of through holes.
- a flat mass of wire with thin metal threads wound in a spiral shape can be inserted into the metal layer of the mesh structure.
- the battery module frame 100 of the present invention uses an aluminum material as a structural layer and includes a mesh metal layer in the middle, a lightweight frame structure can be implemented through weight reduction by the mesh structure as well as weight reduction by the aluminum material. There will be.
- the battery module frame 100 of the present invention has a mesh-structured second layer 120 interposed between the first layer 110 and the third layer 130 made of aluminum when thermal runaway of the battery cell occurs. It not only splits the generated flame into small pieces as it passes through, but also causes an endothermic reaction that absorbs the energy of the flame, resulting in a temperature drop and anti-inflammatory effect.
- the second layer 120 of the mesh structure has a number of small holes, gases such as gas or steam can easily pass through the second layer 120, but it is relatively difficult for flames to pass through the second layer 120.
- the mesh structure of the second layer 120 absorbs and dissipates heat generated from the combustible gas mixture when the mixture of combustible gas and air inside the battery cell is ignited, thereby preventing combustion of the surrounding gas from reaching the spontaneous ignition temperature. It plays a role in lowering the temperature. This is because heat is lost to the porous structure made of metal as the high-temperature gas passes through the second layer 120 of the mesh structure. That is, the second layer 120 is made of a metal material containing numerous holes and functions as a flame arrester with a very large cross-sectional area.
- the flame generated by the thermal runaway of the battery cell loses enough heat that the flame can no longer maintain as it passes through the battery module frame 100 of the present invention, thereby effectively suppressing heat propagation or external fire. do.
- the second layer 120 which is a mesh metal layer, may be made of aluminum, a metal material having a higher melting point than the melting points of the first layer 110 and the third layer 130.
- the metal material forming the second layer 120 may be steel or stainless steel.
- the second layer 120 which is a mesh metal layer, to maintain an anti-inflammatory function for a long time, the mesh structure needs to have heat-resistant properties, so the second layer 120 is made of aluminum, including the first layer 110 and the third layer. It is desirable to have a higher melting point compared to (130).
- the second layer 120 is preferably selected from a material that has not only an anti-flammability ability to suppress flames, but also mechanical properties that can withstand explosion pressure.
- the second layer 120 may be made of steel or stainless steel material that is heat resistant and has excellent mechanical strength.
- the second layer 120 may be made of heat-resistant stainless steel.
- Heat-resistant stainless steels are ferritic stainless steel alloys such as X10CrAlSi7, X10CrAl13, X10CrAl18 and X18CrN28, austenitic stainless steel alloys such as r15Fe, NiCr23Fe, NiCr22Mo9Nb , may be a nickel-chromium stainless steel alloy such as NiCr21Mo and NiCr28FeSiCe.
- the battery module frame 100 of the present invention suppresses an increase in the size or weight of the battery module 10 and, by extension, the battery pack, and prevents the eruption of flame to the outside in the event of a flame erupting from a battery cell. By preventing this, the safety of the battery module 10 is improved.
- FIG. 3 is a diagram showing an example of forming the main frame 102 through press molding.
- the battery module frame 100 of the present invention can be molded in one piece through press processing in a flat state in which the first to third layers 110 to 130 are all stacked.
- the second layer 120 of the mesh structure is in the form of a thin plate, for example, the second layer 120 has a thin thickness of about 1 to 2 mm, so the first layer 110 and the third layer (110) are made of aluminum.
- a battery module frame in the form of a flat plate is placed between the upper mold (UM) and the lower mold (BM) as shown in FIG. 100) can be placed and press processed to create the main frame 102 with a “ ⁇ ”-shaped cross section.
- the first layer 110 and the third layer 130 are aluminum materials that are easy to plastic process and are therefore suitable for press processing, while the metal material making up the second layer 120 is steel or stainless steel and has mechanical strength. Although it is high, the thickness is thin, so press processing can sufficiently cope with it.
- the battery module frame 100 of the present invention is made by pressing a flat preliminary frame in which the second layer 120 of a mesh structure is laminated between the first layer 110 and the third layer 130 made of aluminum. Since it is possible to transform into various shapes through processing, it can maintain the same level of productivity as the existing frame without a mesh metal layer.
- a ventilation hole may be formed in the upper plate 104 forming the battery module frame 100.
- Figure 4 shows an exemplary embodiment in which ventilation holes are formed in the upper plate 104.
- a ventilation hole is formed in the upper plate 104 of the battery module frame 100. This is considering that the flame mainly propagates upward, and of course, ventilation holes can be formed in the main frame 102 as well.
- the location of the ventilation hole needs to be selected in consideration of secondary damage to surrounding components or external fire caused by high-temperature gas or partial flame ejected through the ventilation hole.
- the upper plate 104 forming the upper surface of the battery module frame 100 has an outer ventilation portion 320 formed in a portion of the third layer 130, and the outer ventilation portion 320 is formed.
- the second layer 120 is exposed to the outside.
- an inner ventilation portion 310 exposing the second layer 120 is formed in the first layer 110 of the upper plate 104.
- the ventilation portion 300 which includes the inner and outer ventilation portions 310 and 320, is a portion of the first layer 110 and the third layer 130 of the battery module frame 100, respectively, cut away.
- the second layer 120 is exposed by 300 .
- a ventilation portion 300 is formed by intentionally cutting a portion of the first layer 110 and the third layer 130, respectively, and the flame passes through a predetermined point, that is, through the ventilation portion 300.
- the position is limited so that it erupts from the base 300. Therefore, by appropriately designing the location of the ventilation unit 300, the risk of secondary damage such as external fire can be greatly reduced.
- a plurality of ventilation portions 300 may be formed on one surface, in the drawing as an example, in a diagonal direction on the upper surface of the battery module frame 100.
- the ventilation portion 300 is an area where flame ejects out of the third layer 130 through the second layer 120, which is a mesh metal layer, so when forming a plurality of ventilation portions 300, ensure a long distance between them. As a result, the flame loses heat while passing through the second layer 120 for a sufficient distance and time.
- the inner ventilation portion 310 formed in the first layer 110 and the outer ventilation portion 320 formed in the third layer 130 do not overlap each other. This is also because if the inner ventilation part 310 and the outer ventilation part 320 are directly connected, it is difficult to secure a flame path sufficient to exert the anti-inflammatory effect of the second layer 120.
- the outer ventilation portion 320 formed in the third layer 130 is spaced diagonally apart from the inner ventilation portion 310 formed in the first layer 110. You can. By arranging the inner ventilation part 310 and the outer ventilation part 320, the inner ventilation part 310 and the outer ventilation part 320 do not overlap each other and the distance between the outer ventilation part 320 is made large. You can.
- the outer ventilation portion 320 may be composed of a plurality of ventilation holes forming a group.
- the outer ventilation portion 320 has a long distance (d) from the inner ventilation portion 310. It may be desirable to have a stepwise size arrangement in which the ventilation area of the ventilation holes increases as time increases. This is because the flame path passing through the mesh structure of the second layer 120 is long, so that more of the flame that has lost enough heat is discharged through the outer ventilation hole at a greater distance (d) from the inner ventilation part 310. This is because it is advantageous from the side.
- the mesh structure of the second layer 120 included in the upper surface of the battery module frame 100 that is, the mesh of the upper plate 104 It is also possible to make the structure denser than the mesh structure of the second layer 120 included on the other side. This is because as the mesh structure becomes denser, the heat transfer area increases and the flame suppression ability improves.
- a fastening portion 200 may be formed in the first layer 110 or the third layer 130 made of aluminum, and this fastening portion 200 may be a welding portion 210 or a bolting portion 220.
- FIG. 5 shows an example in which the fastening part 200 is formed by the welding part 210
- FIG. 6 shows an example in which the bolting part 220 forms the fastening part 200.
- the battery module frame 100 of the present invention includes a mesh metal layer for flame suppression, but the second layer 120 of the mesh structure is buried between the first layer 110 and the third layer 130 made of aluminum. Accordingly, the first layer 110 and the third layer 130 form a solid structural layer of the battery module frame 100. Therefore, the battery module frame 100 of the present invention can easily implement a fastening structure such as welding or bolting by embedding a mesh structure and surrounding the exterior with a structural layer made of aluminum.
- FIGS. 5 and 6 each show an example in which the welding portion 210 and the bolting portion 220 constitute the fastening portion 200, in which one battery module frame 100 serves as the fastening portion 200.
- the welding portion 210 and the bolting portion 220 may be included in a complex manner.
- Battery module 100 Battery module frame
- main frame 104 upper plate
- welding part 220 bolting part
- ventilation part 310 inner ventilation part
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (13)
- 내부에 복수의 배터리 셀을 수용하는 배터리 모듈 프레임에 있어서,상기 배터리 모듈 프레임은,알루미늄 또는 알루미늄 합금 소재로 이루어진 제1 층;상기 제1 층 위에 적층되고, 매쉬 구조의 금속 소재로 이루어진 제2 층; 및상기 제2 층 위에 적층되고, 알루미늄 또는 알루미늄 합금 소재로 이루어진 제3 층;을 포함하는 배터리 모듈 프레임.
- 제1항에 있어서,상기 배터리 모듈 프레임은,상기 제1 층 내지 제3 층이 적층된 상태에서 프레스 가공으로 함께 성형되는 것을 특징으로 하는 배터리 모듈 프레임.
- 제2항에 있어서,상기 제1 층 또는 제3 층에 체결부가 형성되는 것을 특징으로 하는 배터리 모듈 프레임.
- 제3항에 있어서,상기 체결부는,용접부 또는 볼팅부인 것을 특징으로 하는 배터리 모듈 프레임.
- 제1항에 있어서,상기 제2 층은,상기 제1 층 및 제3 층의 용융점보다 더 높은 용융점을 갖는 금속 소재로 이루어지는 것을 특징으로 하는 배터리 모듈 프레임.
- 제5항에 있어서,상기 제2 층을 이루는 금속 소재는 스틸 또는 스테인리스스틸 소재인 것을 특징으로 하는 배터리 모듈 프레임.
- 제1항에 있어서,상기 배터리 모듈 프레임의 적어도 어느 일면에는,상기 제1 층 및 제3 층의 일부에 상기 제2 층을 노출시키는 통기부가 형성된 것을 특징으로 하는 배터리 모듈 프레임.
- 제7항에 있어서,상기 통기부는,상기 배터리 모듈 프레임의 상면에 형성되는 것을 특징으로 하는 배터리 모듈 프레임.
- 제9항에 있어서,상기 통기부는,대각 방향으로 복수 개가 형성되는 것을 특징으로 하는 배터리 모듈 프레임.
- 제8항에 있어서,상기 배터리 모듈 프레임의 상면에 포함된 제2 층의 매쉬 구조는, 다른 면에 포함된 제2 층의 매쉬 구조보다 조밀한 것을 특징으로 하는 배터리 모듈 프레임.
- 제8항에 있어서,상기 제1 층에 형성된 내측 통기부와, 상기 제3 층에 형성된 외측 통기부는 서로 중첩되지 않는 것을 특징으로 하는 배터리 모듈 프레임.
- 제11항에 있어서,상기 제1 층에 형성된 내측 통기부를 중심으로 하여 상기 제3 층에 형성된 외측 통기부는 대각방향으로 이격되어 있는 것을 특징으로 하는 배터리 모듈 프레임.
- 제12항에 있어서,상기 외측 통기부는,상기 내측 통기부로부터의 거리가 멀수록 통기면적이 커지는 복수 개의 통기공을 포함하는 것을 특징으로 하는 배터리 모듈 프레임.
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EP23827419.5A EP4354616A1 (en) | 2022-06-21 | 2023-06-12 | Battery module frame |
CN202380012762.0A CN117616623A (zh) | 2022-06-21 | 2023-06-12 | 电池模块框架 |
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KR1020220182542A KR20230174690A (ko) | 2022-06-21 | 2022-12-23 | 배터리 모듈 프레임 |
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KR20180091301A (ko) * | 2017-02-06 | 2018-08-16 | 삼성에스디아이 주식회사 | 이차 전지 |
JP2020507891A (ja) * | 2017-09-19 | 2020-03-12 | エルジー・ケム・リミテッド | 放熱層を含むパウチ形電池ケース |
WO2020075962A1 (ko) * | 2018-10-12 | 2020-04-16 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 이러한 배터리 랙을 포함하는 전력 저장 장치 |
KR20200078344A (ko) | 2018-12-20 | 2020-07-01 | 삼성에스디아이 주식회사 | 차량용 전지 팩 |
CN113826272A (zh) * | 2019-05-06 | 2021-12-21 | 赛峰电子与防务舱解决方案公司 | 电池盒 |
US20220140432A1 (en) * | 2020-02-28 | 2022-05-05 | Contemporary Amperex Technology Co., Limited | Explosion-proof valve, battery pack, and apparatus |
KR20220075257A (ko) | 2020-11-29 | 2022-06-08 | 푸른들영농조합법인 | 캣닙오일 등을 포함하는 두부켓리터 제조방법 |
-
2023
- 2023-06-12 WO PCT/KR2023/007996 patent/WO2023249299A1/ko active Application Filing
- 2023-06-12 EP EP23827419.5A patent/EP4354616A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20180091301A (ko) * | 2017-02-06 | 2018-08-16 | 삼성에스디아이 주식회사 | 이차 전지 |
JP2020507891A (ja) * | 2017-09-19 | 2020-03-12 | エルジー・ケム・リミテッド | 放熱層を含むパウチ形電池ケース |
WO2020075962A1 (ko) * | 2018-10-12 | 2020-04-16 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 이러한 배터리 랙을 포함하는 전력 저장 장치 |
KR20200078344A (ko) | 2018-12-20 | 2020-07-01 | 삼성에스디아이 주식회사 | 차량용 전지 팩 |
CN113826272A (zh) * | 2019-05-06 | 2021-12-21 | 赛峰电子与防务舱解决方案公司 | 电池盒 |
US20220140432A1 (en) * | 2020-02-28 | 2022-05-05 | Contemporary Amperex Technology Co., Limited | Explosion-proof valve, battery pack, and apparatus |
KR20220075257A (ko) | 2020-11-29 | 2022-06-08 | 푸른들영농조합법인 | 캣닙오일 등을 포함하는 두부켓리터 제조방법 |
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