WO2021201454A1 - 전지 모듈 및 이를 포함하는 전지팩 - Google Patents
전지 모듈 및 이를 포함하는 전지팩 Download PDFInfo
- Publication number
- WO2021201454A1 WO2021201454A1 PCT/KR2021/002881 KR2021002881W WO2021201454A1 WO 2021201454 A1 WO2021201454 A1 WO 2021201454A1 KR 2021002881 W KR2021002881 W KR 2021002881W WO 2021201454 A1 WO2021201454 A1 WO 2021201454A1
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- Prior art keywords
- battery
- module
- end plate
- frame
- battery module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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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
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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
- 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
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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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
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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
- H01M2200/00—Safety devices for primary or secondary batteries
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module and a battery pack including the same, and more particularly, to a battery module with enhanced stability and a battery pack including the same.
- Secondary batteries are receiving a lot of attention as an energy source in various product groups such as mobile devices and electric vehicles.
- Such a secondary battery is a powerful energy resource that can replace the use of conventional products using fossil fuels, and is in the spotlight as an eco-friendly energy source because no by-products are generated due to energy use.
- a method of configuring a battery module including a plurality of battery cells and adding other components to at least one battery module to configure the battery pack This is common. Since the battery cells constituting the mid-to-large-sized battery module are composed of rechargeable batteries capable of charging and discharging, such high-output, large-capacity secondary batteries generate a large amount of heat during the charging and discharging process.
- the battery module may include a battery cell stack in which a plurality of battery cells are stacked, a frame accommodating the battery cell stack, and an end plate covering front and rear surfaces of the battery cell stack.
- FIG. 1 is a view showing a state of ignition of a battery module mounted on a conventional battery pack.
- FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 , showing flames affecting adjacent battery modules when a battery module mounted in a conventional battery pack ignites.
- a conventional battery module includes a battery cell stack in which a plurality of battery cells 10 are stacked, a frame 20 for accommodating the battery cell stack, and front and rear surfaces of the battery cell stack. It includes an end plate 30 , a terminal bus bar 40 formed to protrude out of the end plate 30 , and the like.
- the frame 20 and the end plate 30 may be coupled to be sealed through welding.
- the internal pressure of the battery cell 10 increases during overcharging of the battery module and exceeds the fusion strength limit value of the battery cell 10 , the high-temperature heat, gas and flame generated in the battery cell 10 is released from the battery cell 10 . can be discharged outside.
- high-temperature heat, gas, and flame may be discharged through the openings formed in the end plate 30.
- the end plate 30 is ejected from the battery module.
- High-temperature heat, gas, and flame may affect neighboring battery modules.
- the terminal bus bar 40 formed on the end plate 30 of the neighboring battery module may be damaged, and high-temperature heat, gas, and flame may penetrate the battery through the opening formed in the end plate 30 of the neighboring battery module. It may enter the inside of the module and damage the plurality of battery cells 10 .
- An object of the present invention is to provide a battery module capable of dispersing high-temperature heat and flames emitted when an ignition occurs in the battery module, and a battery pack including the same.
- a battery module includes a battery cell stack in which a plurality of battery cells are stacked; and a module frame for accommodating the battery cell stack, a venting part is formed on a lower surface of the module frame, and the battery cell includes: a cell body; electrode leads protruding from both ends of the cell body; and a terrace portion extending from the cell case in a direction in which the electrode lead protrudes, and the vent portion is formed adjacent to a portion where the terrace portion is located rather than the cell body.
- the venting part may be formed at a position corresponding to the part where the terrace part is located.
- It may further include a first end plate and a second end plate respectively positioned on the front and rear surfaces of the battery cell stack.
- the venting part may have a hole structure formed on a lower surface of the module frame.
- the hole structure may obliquely penetrate the lower surface of the module frame.
- the hole structure may have an inclination direction that approaches an end plate that is farther from the venting part among the first end plate and the second end plate.
- the venting part may include an inlet formed on a lower surface of the module frame facing the battery cell stack, an outlet for discharging gas introduced through the inlet, and a connection part connecting the inlet and the outlet.
- the outlet may be formed in a direction perpendicular to the inlet.
- connection part may have a shape protruding from a lower surface of the module frame.
- the venting part may be formed to discharge gas in a direction of an end plate located further away from the first end plate and the second end plate.
- the first end plate and the second end plate include a module mounting part for fixing the battery module, a support member is inserted into the module mounting part, and the module from the bottom of the pack frame by the support member
- the lower surface of the frame may be spaced apart.
- a supporting member protruding downward to the lower surface of the module frame may be formed.
- the battery pack according to an embodiment of the present invention may include two or more battery modules, and openings may be formed on surfaces facing each other in the first battery module and the second battery module among the battery modules.
- the venting part of the first battery module may be formed to discharge gas in a direction opposite to a direction in which the second battery module is located.
- a battery module and a battery pack including the same face the battery module by dispersing high-temperature heat, gas, and flame generated when the battery module is ignited through a vent formed on the lower surface of the module frame. It is possible to minimize the damage applied to the terminal terminal and the plurality of battery cell parts of the battery module.
- FIG. 1 is a view showing a state of ignition of a battery module mounted on a conventional battery pack.
- FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 , showing flames affecting adjacent battery modules when a battery module mounted in a conventional battery pack ignites.
- FIG. 3 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- FIG. 4 is a perspective view of a battery cell included in the battery module of FIG. 3 .
- FIG. 5 is a perspective view illustrating a state in which the battery module of FIG. 3 is combined.
- FIG. 6 is a plan view illustrating a lower surface of the battery module of FIG. 5 .
- FIG. 7 is a cross-sectional view taken along the cutting line “B” of FIG. 5 .
- FIGS. 8 and 9 are cross-sectional views of a battery module according to modified embodiments of the present invention, respectively.
- FIG. 10 is a perspective view illustrating a state in which a battery module according to an embodiment of the present invention is mounted on a pack frame.
- 11A and 11B are cross-sectional views of a battery module in which a supporting member is formed, respectively.
- FIG. 12 is a top plan view of a battery pack according to an embodiment of the present invention.
- a part of a layer, film, region, plate, etc. when a part of a layer, film, region, plate, etc. is said to be “on” or “on” another part, it includes not only cases where it is “directly on” another part, but also cases where there is another part in between. . Conversely, when we say that a part is “just above” another part, we mean that there is no other part in the middle.
- the reference part means to be located above or below the reference part, and to necessarily mean to be located “on” or “on” in the direction opposite to gravity no.
- planar it means when the target part is viewed from above, and "in cross-section” means when viewed from the side when a cross-section of the target part is vertically cut.
- FIG. 3 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- 4 is a perspective view of a battery cell included in the battery module of FIG. 3 .
- 5 is a perspective view illustrating a state in which the battery module of FIG. 3 is combined.
- 6 is a plan view illustrating a lower surface of the battery module of FIG. 5 .
- 7 is a cross-sectional view taken along the cutting line “B” of FIG. 5 .
- the battery module 100 includes a battery cell stack 120 and a battery cell stack 120 in which a plurality of battery cells 110 are stacked. It includes a module frame 200 for accommodating, and a venting part 400 is formed on a lower surface of the module frame 200 .
- the venting part means a part for discharging heat or gas inside the battery module 100 .
- the battery cell 110 is preferably a pouch-type battery cell.
- the two electrode leads 111 and 112 are opposite to each other and protrude from one end 114a and the other end 114b of the cell body 113, respectively. has a structure in In more detail, the electrode leads 111 and 112 are connected to the electrode assembly (not shown), and protrude from the electrode assembly (not shown) to the outside of the battery cell 110 .
- both ends 114a and 114b of the cell case 114 and one side 114c connecting them are adhered in a state in which an electrode assembly (not shown) is accommodated in the cell case 114 .
- the battery cell 110 according to the present embodiment has a total of three sealing parts 114sa, 114sb, 114sc, and the sealing parts 114sa, 114sb, 114sc are sealed by a method such as thermal fusion.
- the other one side may be formed of a connection part 115 .
- the cell case 114 may be formed of a laminate sheet including a resin layer and a metal layer.
- connection part 115 may extend long along one edge of the battery cell 110 , and a protrusion 110p of the battery cell 110 called a bat-ear is formed at an end of the connection part 115 .
- the terrace portion 116 may be formed between the electrode leads 111 and 112 and the cell body 113 . That is, the battery cell 110 includes a terrace portion 116 extending from the cell case 114 in a direction in which the electrode leads 111 and 112 protrude.
- the battery cells 110 may be configured in plurality, and the plurality of battery cells 110 may be stacked to be electrically connected to each other to form the battery cell stack 120 .
- the upper plate 130 may be positioned on the upper side of the battery cell stack 120 , and a bus bar frame ( 140) may be located.
- the battery cell stack 120 , the upper plate 130 , and the bus bar frame 140 may be accommodated together in the module frame 200 .
- a thermal conductive resin may be injected between the lower surface of the battery cell stack 120 and the module frame 200 , and between the lower surface of the battery cell stack 120 and the module frame 200 through the injected thermal conductive resin.
- a thermally conductive resin layer (not shown) may be formed.
- the bus bar frame 140 is positioned on the front and rear surfaces of the battery cell stack 120 , respectively, to cover the battery cell stack 120 and guide the connection between the battery cell stack 120 and external devices at the same time. can do.
- the bus bar 141 and the terminal bus bar 142 may be mounted on the bus bar frame 140 .
- the electrode leads 111 and 112 of the battery cell 110 may be bent after passing through the slit formed in the bus bar frame 140 to be bonded to the bus bar 141 or the terminal bus bar 142 .
- the battery cells 110 constituting the battery cell stack 120 may be connected in series or in parallel through the bus bar 141 , and an external device may be connected through the terminal bus bar 142 exposed to the outside of the battery module 100 .
- the circuit and the battery cells 110 may be electrically connected.
- a connector (not shown) may be mounted on the bus bar frame 140 , and the temperature or voltage data of the battery cell 110 measured through the sensing assembly (not shown) is transmitted to the external BMS through the connector (not shown). (Battery Management System), etc.
- the end plates 301 and 302 are formed to cover the front and rear surfaces of the battery cell stack 120 .
- the first end plate 301 and the second end plate 302 may be positioned on the front and rear surfaces of the battery cell stack 120 , respectively.
- the end plates 301 and 302 can protect the bus bar frame 140 and various electrical components connected thereto from external impact, and for this, they must have a predetermined strength and may include a metal such as aluminum.
- Terminal busbar openings 320 and connector openings 330 are formed in the end plates 301 and 302 for connecting the terminal busbars 142 and connectors (not shown) mounted on the busbar frame 140 to the outside. and gas or heat generated from the battery cell 110 through the openings 320 and 330 may be discharged to the outside of the battery module 100 .
- the end plates 301 and 302 and the module frame 200 are coupled by welding, and the module frame 200 and the plurality of battery cells 110 located inside the end plate 300 are sealed through the end plate ( 300) and the module frame 200 through the coupling structure, except for the above-described openings 320 and 330, the connection to the outside may be blocked.
- high-temperature heat, gas, or flame generated in the battery cell may be discharged through the openings.
- high-temperature heat, gas, flame, etc. ejected from the battery module may damage neighboring battery modules.
- the venting part 400 is formed on the lower surface of the module frame 200 according to the present embodiment, so that heat, gas, and flames discharged through the openings 320 and 330 can be dispersed.
- the venting part 400 may have a hole structure formed on the lower surface of the module frame 200 .
- the venting part 400 is formed adjacent to the portion where the terrace part 116 is located rather than the cell body 113 .
- a lot of heat is generated in the electrode leads 111 and 112 of the battery cell 110 and the terrace portion 116 adjacent thereto, and the sealing of the terrace portion 116 is released due to a change in pressure inside the battery module 100 .
- high temperature heat, gas and flame may be emitted.
- the venting part 400 according to the present embodiment is formed adjacent to the portion where the terrace part 116 is located rather than the cell body 113 , high-temperature heat, gas, and flame are immediately removed from the battery module 100 . can be discharged with
- the venting part 400 may be formed at a position corresponding to the terrace part 116 .
- venting unit 400 since the venting unit 400 according to the embodiment of the present invention is formed on the lower surface of the module frame 200 , foreign substances floating in the air are prevented from entering the battery module 100 through the venting unit 400 . can do.
- venting units 500 and 600 according to modified embodiments of the present invention will be described.
- FIGS. 8 and 9 are cross-sectional views of a battery module according to modified embodiments of the present invention, respectively.
- the venting units 500 and 600 are directed toward the farther one of the first end plate 301 and the second end plate 302 in the direction of the end plate. It may be configured to exhaust gas. As shown in FIGS. 8 and 9 , the venting parts 500 and 600 positioned close to the first end plate 301 may be formed to discharge gas in the direction of the second end plate 302 positioned further away.
- Venting portions 500 and 600 are formed at positions corresponding to the portion where the terrace portion 116 is located, and the first end plate 301 is located opposite the reference portion of the battery cell stack 120 . Since it is closer than 302, when the gas is discharged in the direction of the first end plate 301, high-temperature heat, gas and flame are emitted to other battery modules adjacent to the first end plate 301, which may cause damage. . In order to prevent this, it is preferable that the venting parts 500 and 600 are formed to discharge gas in the direction of the second end plate 302 . This will be described again with reference to FIG. 12 below.
- the venting unit 500 may have a hole structure formed on the lower surface of the module frame 200 , and further may have a hole structure that obliquely penetrates the lower surface of the module frame 200 .
- the inner inlet of the venting part 500 passing through an angle may be formed closer to the first end plate 301 than the outer outlet, and the outer outlet may be formed closer to the second end plate 302 than the inner inlet.
- the venting part 500 may have an inclination direction closer to an end plate positioned further from the venting part 500 among the first end plate 301 and the second end plate 302 .
- the venting unit 500 By providing the structure as described above, it is possible to naturally impart direction to the heat or gas discharged through the venting unit 500 . That is, the gas may be induced to be discharged in the direction of the second end plate 302 located further away, thereby preventing damage to other battery modules adjacent to the first end plate 301 .
- venting unit 500 does not require a separate additional space as a perforated hole structure, and has the advantage of providing the directionality of the discharged gas simply by passing through the module frame 200 . have.
- the venting part 600 is formed on the lower surface of the module frame 200 to form an inlet 610 and an inlet 610 facing one side of the battery cell according to the stacking direction of the battery cell stack. It may include an outlet 620 for discharging the gas introduced through, and a connector 630 connecting the inlet 610 and the outlet 620 .
- the outlet 620 may be formed in a direction perpendicular to the inlet 610 .
- the connection part 630 may be formed to protrude from the lower surface of the module frame 200, and may be formed to be inclined. Accordingly, the outlet 620 may also be formed on the outside of the lower surface of the module frame 200 .
- the venting unit 600 may more reliably guide heat or gas inside the battery module toward the second end plate 302 . That is, it has an advantage that the directionality of heat or gas can be more reliably provided.
- the connection part 630 may serve as a kind of cover to prevent foreign substances from entering the battery module.
- FIG. 10 is a perspective view illustrating a state in which the battery module according to an embodiment of the present invention is mounted on the pack frame 1100 .
- the module mounting part 310 may be formed on the end plates 301 and 302 to mount and fix the battery module 100 to the pack frame 1100 of the battery pack. .
- the support member 340 may be inserted into the module mounting part 310 .
- a mounting hole 311 may be formed in the module mounting part 310 , and the support member 340 may be inserted into the mounting hole 311 .
- a through hole may be formed in the bottom 1110 of the pack frame 1100 , and one end of the support member 340 passing through the mounting hole 311 may be coupled to the through hole of the bottom 1110 .
- one end of the support member 340 may be provided in a bolt shape and coupled with a nut-shaped through hole of the bottom portion 1110 .
- the coupling is not limited to the bolt and nut coupling, and may be implemented through various embodiments.
- the support member 340 may have a cylindrical rod shape so as to be inserted into the mounting hole 311 of the module mounting part 310 .
- a head portion 341 may be formed at the other end opposite to the one end of the support member 340 .
- the head part 341 is formed to have a wider radius than the mounting hole 311 , so that the end plates 301 and 302 can be closely adhered and fixed to the bottom part 1110 without being inserted into the mounting hole 311 .
- the battery module 100 may be mounted and fixed to the pack frame 1100 .
- the height of the support member 340 is set to be somewhat longer so that the lower surface of the module frame 200 is spaced apart from the bottom 1110 of the pack frame 1100 by a predetermined distance d1.
- a fixing member such as a nut surrounding the support member 340 is provided at the lower end of the mounting part 310 , and the battery module 100 including the end plates 301 and 302 is located below. can be prevented from moving to That is, the fixing member that maintains the separation distance by a predetermined interval d1 may be provided.
- venting parts 400 , 500 , 600 are formed on the lower surface of the module frame 200 and heat or gas is discharged through the lower surface, the lower surface is the bottom 1110 of the pack frame 1100 ) It is preferable to provide a space in which heat or gas is discharged by being spaced apart from it.
- the venting parts 500 and 600 of FIGS. 8 and 9 induce the discharge in the direction of the second end plate 302 from the first end plate 301, the lower surface of the module frame 200 is spaced apart as described above. It is preferable to be In addition, since the venting part 600 of FIG. 9 forms a structure in which the connection part 630 and the outlet 620 protrude, it may be more preferable that the lower surface of the module frame 200 be spaced apart.
- FIG. 11A and 11B are cross-sectional views of a battery module in which a supporting member 210 is formed, respectively, as a modified embodiment of the present invention.
- a supporting member 210 protruding downwardly on the lower surface of the module frame 200 may be formed.
- the lower surface of the module frame 200 may be spaced apart from the bottom of the pack frame. Accordingly, a space for discharging heat or gas may be provided, and the discharged heat or gas may easily move from the first end plate 301 to the second end plate 302 .
- the number of the supporting members 210 there is no particular limitation on the number of the supporting members 210 , but a plurality is preferable in order to stably support the battery module, and it is more preferable to be evenly disposed on all areas of the lower surface of the module frame 200 .
- the venting parts 500 and 600 and the support member 210 are shown together, but in consideration of the path of heat or gas, the support member 210 is a venting part 500, 600) and is preferably formed to deviate from it. Specifically, the position of the venting parts 500 and 600 and the position of the support member 210 in a direction parallel to the surface of the cell body 113 (a direction parallel to the x-axis in FIG. 5 ) do not coincide with each other. desirable. This is to prevent the support member 210 from blocking the heat or gas discharged from the venting units 500 and 600 .
- the support member 210 may be of a configuration integrated with the module frame 200 , or alternatively, a configuration formed by bonding a member such as a metal to the lower surface of the module frame 200 .
- the battery cell 110 may correspond to the position of the terrace part 116 of the battery cell 110 constituting the battery cell stack 120 . They are preferably arranged along a direction parallel to the stacking direction.
- the direction in which the battery cells 110 are stacked means a direction perpendicular to the surface of the cell body 113 , that is, a direction parallel to the y-axis in FIG. 5 .
- the module frame 200 may have a mono frame structure or a structure in which an upper cover is coupled to a U-shaped frame.
- the mono frame may be in the form of a metal plate in which the upper surface, the lower surface and both sides are integrated, and may be manufactured by extrusion molding.
- the lower surface and both sides may be formed by coupling the upper cover to the upper side of the U-shaped frame, which is an integrated metal plate, and may be manufactured by press molding.
- venting parts 400 and 500 of the hole structure may be applied to both a mono frame manufactured by extrusion molding or a U-shaped frame manufactured by press molding.
- the venting part 600 having a protruding structure is easier to implement in a U-shaped frame manufactured by press molding rather than a mono frame manufactured by extrusion molding.
- a through hole may be formed in the lower surface of the module frame 200 and the connection part 630 and the outlet 620 may be joined to the lower surface.
- the venting unit 600 is also applicable to a mono frame manufactured by extrusion molding.
- FIG. 12 is a top plan view of the battery pack 1000 according to an embodiment of the present invention.
- the battery pack 1000 may include two or more of the battery modules 100a and 100b described above.
- the battery modules 100a and 100b may be accommodated in the pack frame 1100 and may be mounted together with various control and protection systems such as a Battery Management System (BMS) and a cooling system.
- BMS Battery Management System
- the first battery module 100a and the second battery module 100b may have openings 320a, 330a, 320b, and 330b formed on surfaces facing each other, respectively.
- the first end plate 301a of the first battery module 100a and the first end plate 301b of the second battery module 100b may face each other.
- the terminal bus bar opening 320a and the connector opening 330a may be formed in the first end plate 301a of the first battery module 100a.
- a terminal bus bar opening 320b and a connector opening 330b may be formed in the first end plate 301b of the second battery module 100b.
- the battery modules 100a and 100b according to the present embodiment may reduce heat, gas, and flame emitted through the openings 320a, 330a, 320b, and 330b by providing the aforementioned venting portion on the lower surface thereof.
- venting parts 500 and 600 shown in FIG. 8 or FIG. 9 may be provided in the battery modules 100a and 100b.
- the first battery module 100a may induce heat, gas, flame, etc. to be discharged in the opposite direction to the direction in which the second battery module 100b is located
- the second battery module 100b is the first battery Heat, gas, flame, etc. may be induced to be discharged in a direction opposite to the direction in which the module 100a is located. That is, damage that may be applied between the facing battery modules 100a and 100b can be minimized.
- the battery modules 100a and 100b according to the present embodiment may be spaced apart from the bottom 1110 of the pack frame 1100 .
- the battery modules 100a and 100b may include the module mounting part 310 and the support member 340 shown in FIG. 10 or the support member 210 shown in FIGS. 11A and 11B . Accordingly, a space for discharging heat, gas, flame, etc. may be provided inside the battery pack 1000 .
- the battery module or battery pack according to the present embodiment described above may be applied to various devices. Specifically, it may be applied to transportation means such as an electric bicycle, an electric vehicle, a hybrid, etc., but is not limited thereto and may be applied to various devices that can use a secondary battery.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (15)
- 복수의 전지셀이 적층된 전지셀 적층체; 및상기 전지셀 적층체를 수용하는 모듈 프레임을 포함하고,상기 모듈 프레임의 하면에는 벤팅부가 형성되며,상기 전지셀은,셀 본체;상기 셀 본체의 양단으로부터 돌출 형성된 전극 리드; 및상기 전극 리드가 돌출된 방향으로 셀 케이스로부터 연장 형성된 테라스부를 포함하고,상기 벤팅부는 상기 셀 본체보다 상기 테라스부가 위치한 부분에 인접하여 형성되는 전지 모듈.
- 제1항에서,상기 벤팅부는 상기 테라스부가 위치한 부분과 대응하는 위치에 형성되는 전지 모듈.
- 제1항에서,상기 전지셀 적층체의 전면 및 후면에 각각 위치하는 제1 엔드 플레이트 및 제2 엔드 플레이트를 더 포함하는 전지 모듈.
- 제3항에서,상기 벤팅부는, 상기 모듈 프레임의 하면에 형성된 홀 구조인 전지 모듈.
- 제4항에서,상기 홀 구조는, 상기 모듈 프레임 하면을 비스듬하게 관통하는 전지 모듈.
- 제5항에서,상기 홀 구조는, 상기 제1 엔드 플레이트와 상기 제2 엔드 플레이트 중 상기 벤팅부에서 더 멀리 위치하는 엔드 플레이트에 가까워지는 경사 방향을 갖는 전지 모듈.
- 제3항에서,상기 벤팅부는, 상기 모듈 프레임의 하면에 형성되어 상기 전지셀 적층체와 마주보는 유입구, 상기 유입구를 통해 유입된 가스를 배출하는 배출구 및 상기 유입구와 상기 배출구를 연결하는 연결부를 포함하는 전지 모듈.
- 제7항에서,상기 배출구는 상기 유입구와 수직인 방향으로 형성되는 전지 모듈.
- 제7항에서,상기 연결부는 상기 모듈 프레임의 하면으로부터 돌출된 형태인 전지 모듈.
- 제3항에서,상기 벤팅부는, 상기 제1 엔드 플레이트와 상기 제2 엔드 플레이트 중 더 멀리 위치한 엔드 플레이트 방향으로 가스를 배출하도록 형성된 전지 모듈.
- 제3항에서,상기 제1 엔드 플레이트 및 상기 제2 엔드 플레이트는, 상기 전지 모듈의 고정을 위한 모듈 마운팅부를 포함하고,상기 모듈 마운팅부에 지지부재가 삽입되며,상기 지지부재에 의해 팩 프레임의 바닥부로부터 상기 모듈 프레임의 하면이 이격되는 전지 모듈.
- 제1항에서,상기 모듈 프레임의 하면에 하향하도록 돌출된 받침부재가 형성된 전지 모듈.
- 제1항에 따른 전지 모듈을 둘 이상 포함하고,상기 전지 모듈들 중 제1 전지 모듈과 제2 전지 모듈은 각각 서로 마주보는 면에 개구부가 형성되는 전지팩.
- 제13항에서,상기 제1 전지 모듈의 상기 벤팅부는, 상기 제2 전지 모듈이 위치한 방향과 반대방향으로 가스를 배출하도록 형성된 전지팩.
- 제13항에서,상기 전지 모듈들을 수용하는 팩 프레임을 더 포함하고,상기 전지 모듈들은 상기 팩 프레임의 바닥부로부터 이격된 전지팩.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES21780844T ES3036334T3 (en) | 2020-04-01 | 2021-03-09 | Battery module and battery pack including the same |
| US17/779,282 US12603381B2 (en) | 2020-04-01 | 2021-03-09 | Battery module and battery pack including the same |
| CN202180006420.9A CN114730958B (zh) | 2020-04-01 | 2021-03-09 | 电池模块和包括该电池模块的电池组 |
| PL21780844.3T PL4057435T3 (pl) | 2020-04-01 | 2021-03-09 | Moduł akumulatorowy i zawierający go pakiet akumulatorowy |
| EP21780844.3A EP4057435B1 (en) | 2020-04-01 | 2021-03-09 | Battery module and battery pack including the same |
| JP2022527810A JP7729674B2 (ja) | 2020-04-01 | 2021-03-09 | 電池モジュールおよびそれを含む電池パック |
| JP2024212376A JP2025026553A (ja) | 2020-04-01 | 2024-12-05 | 電池モジュールおよびそれを含む電池パック |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200039762A KR102807490B1 (ko) | 2020-04-01 | 2020-04-01 | 전지 모듈 및 이를 포함하는 전지팩 |
| KR10-2020-0039762 | 2020-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021201454A1 true WO2021201454A1 (ko) | 2021-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/002881 Ceased WO2021201454A1 (ko) | 2020-04-01 | 2021-03-09 | 전지 모듈 및 이를 포함하는 전지팩 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US12603381B2 (ko) |
| EP (1) | EP4057435B1 (ko) |
| JP (2) | JP7729674B2 (ko) |
| KR (1) | KR102807490B1 (ko) |
| CN (1) | CN114730958B (ko) |
| ES (1) | ES3036334T3 (ko) |
| HU (1) | HUE072788T2 (ko) |
| PL (1) | PL4057435T3 (ko) |
| WO (1) | WO2021201454A1 (ko) |
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| JP2025520164A (ja) * | 2022-12-05 | 2025-07-01 | エルジー エナジー ソリューション リミテッド | バッテリーモジュール、該バッテリーモジュールを含むバッテリーパック及び自動車 |
| JP2025524605A (ja) * | 2022-07-20 | 2025-07-30 | エルジー エナジー ソリューション リミテッド | バッテリーパックおよびバッテリーモジュール |
| JP2025528375A (ja) * | 2022-12-05 | 2025-08-28 | エルジー エナジー ソリューション リミテッド | バッテリーモジュール及び当該バッテリーモジュールを含むバッテリーパック |
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| KR102720585B1 (ko) * | 2022-12-05 | 2024-10-23 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
| KR102902046B1 (ko) * | 2023-11-03 | 2025-12-22 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2025026553A (ja) | 2025-02-21 |
| KR102807490B1 (ko) | 2025-05-13 |
| JP7729674B2 (ja) | 2025-08-26 |
| PL4057435T3 (pl) | 2025-09-08 |
| US12603381B2 (en) | 2026-04-14 |
| US20220407172A1 (en) | 2022-12-22 |
| CN114730958B (zh) | 2024-01-23 |
| ES3036334T3 (en) | 2025-09-17 |
| EP4057435A4 (en) | 2024-08-14 |
| CN114730958A (zh) | 2022-07-08 |
| EP4057435B1 (en) | 2025-07-02 |
| JP2023502612A (ja) | 2023-01-25 |
| EP4057435A1 (en) | 2022-09-14 |
| KR20210122512A (ko) | 2021-10-12 |
| HUE072788T2 (hu) | 2025-12-28 |
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