WO2022260404A1 - 배터리 모듈, 그리고 이를 포함하는 배터리 팩 및 자동차 - Google Patents
배터리 모듈, 그리고 이를 포함하는 배터리 팩 및 자동차 Download PDFInfo
- Publication number
- WO2022260404A1 WO2022260404A1 PCT/KR2022/008019 KR2022008019W WO2022260404A1 WO 2022260404 A1 WO2022260404 A1 WO 2022260404A1 KR 2022008019 W KR2022008019 W KR 2022008019W WO 2022260404 A1 WO2022260404 A1 WO 2022260404A1
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- Prior art keywords
- spacer
- battery
- flow path
- cooling liquid
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- H01M50/289—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
- H01M50/291—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 their shape
-
- 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 module, a battery pack including the same, and a vehicle, and more specifically, an insulating coolant flowing into a module housing and cooling a battery cell is applied to parts such as electrode leads and bus bars of the battery cell.
- the present invention relates to a battery module having a structure that realizes efficient cooling by directly contacting a battery module and enables efficient flow of an insulating coolant through a flow path between adjacent battery cells, and a battery pack and a vehicle including the same.
- cooling performance is limited because the cooling water does not directly contact the battery cells but indirectly contacts them through a module housing accommodating the battery cells.
- a cooling device such as a separate heat sink must be provided outside the module housing to form a flow path for cooling, the overall volume of the battery module inevitably increases, resulting in loss in terms of energy density.
- the present invention has been devised in consideration of the above-described problems, and has a structure in which an insulated coolant flows into the battery module and directly contacts the battery cell and electrical connection parts to realize efficient cooling.
- An object of the present invention is to provide a battery module having a structure in which cooling liquid flowing into the inside can flow smoothly.
- a battery module for solving the above problems is provided with a coolant flow path interposed between a plurality of battery cells and adjacent battery cells so that an insulated coolant can flow in direct contact with the battery cells.
- a sub-module including a cell stack assembly including a flow path spacer; a module housing accommodating the sub-module; a front sealing plate covering an opening at one side of the module housing in the longitudinal direction and having an inlet for introducing an insulating cooling liquid; and a rear sealing plate covering an opening on the other longitudinal side of the module housing and having an outlet for discharging an insulating cooling liquid.
- the cooling liquid passage may extend along a longitudinal direction of the passage spacer.
- the flow path spacer may alternately contact a first battery cell positioned on one side of the flow path spacer and a second battery cell positioned on the other side of the flow path spacer along a height direction of the flow path spacer.
- the coolant flow path may include a first coolant flow path formed between the flow path spacer and the first battery cell and a second coolant flow path formed between the flow path spacer and the second battery cell.
- the first cooling liquid passage and the second cooling liquid passage may be alternately formed along a height direction of the passage spacer.
- the flow path spacer may include a first portion disposed spaced apart from a first battery cell positioned on one side of the flow path spacer and a second battery cell positioned on the other side of the flow path spacer; and a second part contacting the first battery cell and the second battery cell.
- the cooling liquid passage may include a first cooling liquid passage formed between the first part and the first battery cell and between the first part and the second battery cell, respectively; and a second coolant passage surrounded by the second portion.
- the insulating cooling liquid flowing through the first cooling liquid passage may perform cooling through direct contact, and the insulating cooling liquid flowing through the second cooling liquid passage may perform cooling through indirect contact.
- the first cooling liquid passage and the second cooling liquid passage may be alternately formed along a height direction of the passage spacer.
- the flow path spacer may include: first spacers interposed between the upper end of the sub module and the module housing and between the lower end of the sub module and the module housing; and a second spacer interposed between a pair of adjacent battery cells.
- the second spacer may be partially interposed in a space formed between the pair of adjacent battery cells.
- the second spacer may be spaced apart from the first spacer.
- the second spacer may include a plurality of spacer holes communicating between the pair of adjacent battery cells.
- a battery pack and a vehicle according to an embodiment of the present invention include the battery module according to an embodiment of the present invention as described above.
- efficient and rapid cooling is achieved because the insulating cooling liquid flows into the battery module and directly contacts the battery cells and electrical connection parts, and the cooling liquid flowing into the battery module can flow smoothly. It becomes possible.
- FIG. 1 is a complete perspective view showing a battery module according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view showing a battery module according to an embodiment of the present invention.
- FIG. 3 is a view showing a cross section taken along line A-A' of FIG. 1 .
- Figure 3a is a view showing another form of the flow path spacer shown in Figure 3;
- 3B to 3D are diagrams illustrating another form of the flow path spacer shown in FIG. 3 .
- FIG. 4 is a view showing a state in which the front end plate and the front sealing plate are removed in the battery module shown in FIG. 1 .
- 5 and 6 are views showing the flow of an insulating cooling liquid for cooling.
- FIG. 7 is a view showing a coupling structure of a bus bar frame and a flow path spacer according to the present invention.
- FIG 8 and 9 are views showing a specific structure of a terminal assembly according to the present invention.
- a battery module includes a sub module 100, a module housing 200, a front sealing plate 300, and a rear sealing plate 400.
- the battery module may further include a front end plate 500 and/or a rear end plate 600 and/or a pair of terminal assemblies 700 in addition to the components described above.
- the sub module 100 includes a cell stack assembly 110 .
- the sub module 100 may further include a front bus bar frame assembly 120A and a rear bus bar frame assembly 120B.
- the cell stack assembly 110 includes a plurality of battery cells 111 and at least one passage spacer 112 interposed between adjacent battery cells 111 .
- the cell stack assembly 110 may further include at least one buffer pad 113 interposed between adjacent battery cells 111 .
- the battery cell 111, the flow path spacer 112, and the buffer pad 113 are stacked vertically on the ground (a surface parallel to the X-Y plane) to form one cell stack assembly 110.
- a pouch-type battery cell having a pair of electrode leads 111a drawn out in opposite directions along the longitudinal direction (direction parallel to the X-axis) of the battery cell 111 may be used. have.
- the flow path spacer 112 is interposed between adjacent battery cells 111 so that at least a portion of the insulating coolant flowing into the battery module is passed through the battery cell ( 111) is provided with a coolant flow path 112a allowing it to flow in direct contact with.
- a plurality of cooling liquid passages 112a may be provided.
- the coolant passage 112a extends along the longitudinal direction of the passage spacer 112 (direction parallel to the X-axis).
- the passage spacer 112 may be interposed between adjacent battery cells 111 .
- the number of flow path spacers 112 may be applied by approximately 1/2 of the number of battery cells 111 .
- the plurality of flow path spacers 112 may be arranged such that a pair of battery cells 111 are positioned between a pair of flow path spacers 112 adjacent to each other. In this case, only one side of both sides of all the battery cells 111 comes into contact with the flow path spacer 112 .
- the plurality of passage spacers 112 are arranged in this way, it is possible to realize both improved cooling efficiency and improved energy density of the battery cell 111 through direct cooling.
- the flow path spacer 112 is located on one side of the flow path spacer 112 along the height direction (parallel to the Z-axis) of the flow path spacer 112. It may have a form in which the first battery cell and the second battery cell positioned on the other side of the spacer alternately come into contact with each other.
- the coolant passage 112a includes a first coolant passage formed between the passage spacer 112 and the first battery cell and a second coolant passage formed between the passage spacer 112 and the second battery cell. do.
- the first cooling liquid passage and the second cooling liquid passage are alternately formed in the height direction (parallel to the Z-axis) of the passage spacer 112 .
- the insulating cooling liquid flowing through the first cooling liquid path directly contacts the first battery cell to perform cooling.
- the insulating cooling liquid flowing through the second cooling liquid passage directly contacts the second battery cell to perform cooling.
- the flow path spacer 112 is in contact with both a first part and a pair of battery cells disposed spaced apart from a first battery cell positioned on one side of the flow path spacer 112 and a second battery cell positioned on the other side. Including the second part.
- the coolant passage 112 includes a first coolant passage formed between the first part and the first battery cell and between the second part and the second battery cell, respectively, and a second coolant passage surrounded by the second part. includes The insulating cooling liquid flowing through the first cooling liquid passage performs cooling through direct contact with the battery cell 111, and the insulating cooling liquid flowing through the second cooling liquid passage cools through indirect contact with the battery cell 111. Do it.
- the first cooling liquid passage and the second cooling liquid passage are alternately formed along the height direction (parallel to the Z-axis) of the passage spacer.
- FIGS. 3B to 3D together with FIGS. 2, 5, and 6, a structure of a flow path spacer having a shape different from the flow path spacer shown in FIGS. 3 and 3A described above will be described.
- the passage spacer 112 includes a first spacer 1121 and a second spacer 1122 .
- the first spacer 1121 is interposed between the top of the sub module 100 and the module housing 200 and between the bottom of the sub module 100 and the module housing 200, respectively.
- the second spacer 1122 is interposed between a pair of battery cells 111 adjacent to each other.
- the second spacer 1122 is partially interposed within a space formed between a pair of adjacent battery cells 111 .
- the second spacer 1122 is spaced apart from the first spacer 1121 so that the coolant passage 112a is formed between the first spacer 1121 and the second spacer 1122 .
- the insulating cooling liquid flowing through the cooling liquid passage 112a directly contacts the battery cell 111 to perform cooling.
- the second spacer 1122 may include a plurality of spacer holes for communicating between a pair of adjacent battery cells 111 .
- the insulating cooling liquid used for cooling in the present invention is a cooling liquid with improved insulating properties, and for example, insulating oil may be used.
- the buffer pad 113 may be interposed between adjacent battery cells 111 to absorb volume expansion due to swelling of the battery cells 111 .
- the front bus bar frame assembly 120A and the rear bus bar frame assembly 120B have one side in the longitudinal direction (parallel to the X axis) of the cell stack assembly 110, respectively, and It is coupled to the other side so that the plurality of battery cells 111 are electrically connected.
- the front bus bar frame assembly 120A has an internal terminal 123 and the rear bus bar frame assembly 120B has substantially the same structure except that the internal terminal 123 is not provided. Accordingly, a detailed description of the specific structure of the rear bus bar frame assembly 120B will be omitted, and a detailed description of the specific structure of the front bus bar frame assembly 120A will be focused.
- the front bus bar frame assembly 120A includes a bus bar frame 121, a plurality of bus bars 122, and a pair of internal terminals 123.
- the bus bar frame 121 covers one side of the cell stack assembly 110 in the longitudinal direction (direction parallel to the X axis).
- the bus bar frame 121 includes a plurality of coolant holes 121a.
- the cooling liquid hole 121a allows the insulation cooling liquid introduced into the module housing 200 through the inlet P1 provided in the front sealing plate 300 to pass through the bus bar frame 121, and the cell stack assembly ( 110) functions as a passage that allows inflow into the side.
- the coolant hole 121a may be formed at a position corresponding to the passage spacer 112 provided in the cell stack assembly 110 .
- the cooling liquid hole 121a may have a size corresponding to that of the passage spacer 112 .
- the coolant flowing into the cell stack assembly 110 through the coolant hole 121a formed in the front bus bar frame assembly 120A follows an arrow (see FIGS. 5 and 6) and is formed by the passage spacer 112. It moves toward the rear bus bar frame assembly 120B through the passage 112a.
- the insulation cooling liquid that has moved toward the rear bus bar frame 120B flows into the rear sealing plate 400 through the cooling liquid hole 121a formed in the rear bus bar frame 120B, and the outlet provided in the rear sealing plate 400 It is discharged to the outside of the battery module through (P2).
- the insulating cooling liquid directly contacts the electrode lead 111a of the battery cell 111, the bus bar 122, and the body of the battery cell 111 to effectively cool the battery cell 111.
- the insulating cooling liquid directly contacts the internal terminals 123 as well.
- the bus bar 122 is fixed on the bus bar frame 121 and is coupled with an electrode lead 111a drawn out through a lead slit formed in the bus bar frame 121 to electrically connect with Like the bus bar frame 121, the bus bar 122 may have a coolant hole formed at a position corresponding to the passage spacer 112 so that the insulating coolant can pass through.
- the internal terminal 123 is fixed on the bus bar frame 121, and the electrode lead 111a of the battery cell 111 located at the outermost part among the battery cells 111 provided in the cell stack assembly 110 ) is combined with The internal terminal 123 functions as a high potential terminal.
- the internal terminal 123 located on one side of the longitudinal direction (direction parallel to the Y-axis) of the bus bar frame 121 functions as a positive high potential terminal, and is located on the other side of the longitudinal direction of the bus bar frame 121
- the internal terminal 123 functions as a negative high potential terminal.
- the internal terminal 123 is electrically connected to an external terminal 710 (see FIGS. 8 and 9) to be described later.
- the insulating coolant introduced into the battery module can fill the space between the front sealing plate 300 and the front bus bar frame assembly 120A, and also the rear sealing plate 400 and the rear bus bar frame assembly 120B ) can fill the space between Accordingly, the insulating cooling liquid comes into contact with parts that can generate heat intensively, such as the electrode lead 111a, the bus bar 122, and the internal terminal 123, thereby efficiently cooling the battery module.
- the bus bar frame 121 of the front bus bar frame assembly 120A and the bus bar frame 121 of the rear bus bar frame assembly 120B are upper and It may be provided with a plurality of guide ribs (121b) formed along the longitudinal direction (direction parallel to the Y-axis) at the lower end.
- the guide rib 121b has a shape extending in a direction toward the cell stack assembly 110 .
- the guide rib 121b is formed at a position corresponding to the passage spacer 112 .
- fixing parts 112b having a shape corresponding to the guide rib 121b are formed at both ends of the passage spacer 112 in the longitudinal direction (direction parallel to the X-axis). Movement of the passage spacer 112 in the vertical direction (parallel to the Z-axis) and the longitudinal direction (parallel to the X-axis) is restricted by the guide rib 121b and the fixing part 112b. Accordingly, when the front bus bar frame assembly 120A and the rear bus bar frame assembly 120B are coupled to the cell stack assembly 110, the coupling position can be guided, thereby increasing the convenience of assembly. .
- the module housing 200 includes a cell stack assembly 110, a front bus bar frame assembly 120A, and a rear bus bar frame assembly 120B.
- the module housing 200 has a shape in which one side and the other side are open in the longitudinal direction (direction parallel to the X axis).
- the front sealing plate 300 covers an opening formed on one side of the module housing 200 in the longitudinal direction (direction parallel to the X-axis).
- the front sealing plate 300 includes an inlet P1 for introducing an insulating cooling liquid.
- a gasket G may be interposed between the edge surface of the front sealing plate 300 and the inner surface of the module housing 200 (see FIG. 9 ).
- the front sealing plate 300 is a pair of terminals through which parts for electrical connection between the internal terminal 123 provided in the front bus bar frame assembly 120A and the external terminal 710 to be described later can pass.
- a hole 300a is provided.
- the terminal hole 300a is formed at a position corresponding to the internal terminal 123 .
- the rear sealing plate 400 covers an opening on the other side of the module housing 200 in the longitudinal direction (direction parallel to the X-axis) and has an outlet P2 for discharging the insulating cooling liquid.
- a gasket G may be interposed between the edge surface of the front sealing plate 300 and the inner surface of the module housing 200 to prevent leakage of the insulating cooling liquid.
- the front sealing plate 300 and the rear sealing plate 400 may be made of an insulating resin for electrical insulation.
- the terminal assembly 700 electrically connects an external terminal 710 located outside the front sealing plate 300 and between the external terminal 710 and the battery cell 111. It includes a stud 720 that does.
- the stud 720 is fixed to the internal terminal 123 .
- the stud 720 may pass through the internal terminal 123 and be fixed to the internal terminal 123 by a press fitting method.
- the stud 720 fixed to the internal terminal 123 is drawn out through the terminal hole 300a formed in the front sealing plate 300 and coupled with the external terminal 710 .
- the terminal assembly 700 may further include a ring-shaped terminal spacer 730 inserted into the terminal hole 300a formed in the front sealing plate 300 .
- the terminal spacer 730 may be made of a metal material. When the terminal spacer 730 is provided, the stud 720 penetrates the terminal spacer 730 .
- the terminal assembly 700 may further include a fastening nut 740 for fastening the external terminal 710 to the stud 720 .
- the fastening nut 740 is fastened to the stud 720 penetrating the terminal spacer 730 and the fastening part 712 of the external terminal 710, so that the fastening part 712 of the external terminal 710 is connected to the terminal spacer ( 730) so that it is tightly fixed.
- the internal terminal 123 and the external terminal 710 are electrically connected to each other through the terminal spacer 730 .
- the terminal assembly 700 further includes a first O-ring 750 covering the outer circumferential surface of the terminal spacer 730 and interposed between the inner surface of the front sealing plate 300 and the inner terminal 123.
- a first O-ring 750 covering the outer circumferential surface of the terminal spacer 730 and interposed between the inner surface of the front sealing plate 300 and the inner terminal 123.
- the first O-ring 750 allows the insulation coolant introduced into the space between the front sealing plate 300 and the bus bar frame 121 to pass through the inner surface of the coolant hole 300a and the terminal spacer 730. ) to prevent leakage to the outside of the front sealing plate 300 through the space between them.
- the terminal assembly 700 is press-fitted into the internal terminal 123 and is located around the stud 720 exposed to the space between the internal terminal 123 and the bus bar frame 121, and the internal terminal 123 ) and a second O-ring 760 interposed between the bus bar frame 121 may be further included.
- the insulating coolant flowing into the space between the front sealing plate 300 and the bus bar frame 121 is transferred to the space between the internal terminal 123 and the stud 720 and the terminal spacer 730. It is prevented from leaking to the outside of the front sealing plate 300 through the space between the inner surface of the stud 720.
- the front end plate 500 covers the front sealing plate 300 and is fixed to the module housing 200 .
- the rear end plate 600 covers the rear sealing plate 400 and is fixed to the module housing 200 .
- the front end plate 500 has a terminal exposed portion 500a that exposes the connection portion 711 of the external terminal 710 to the outside of the front end plate 500 and an inlet P1 of the front end plate 500.
- An inlet exposed portion 500b is provided so as to be exposed to the outside.
- the rear end plate 600 includes an outlet exposed portion 600b through which the outlet P2 is exposed to the outside of the rear end plate 600 .
- a battery pack and a vehicle include the battery module according to the present invention as described above.
- the battery pack includes at least one battery module according to the present invention and a pack housing accommodating at least one battery module.
- the battery module may be fastened to the pack housing through fastening holes H formed in the front end plate 500 and/or the rear end plate 600 . That is, the fastening hole H may provide a space into which a fastening means such as a bolt for fastening the pack housing and the battery module is inserted.
- the battery pack includes a plurality of battery modules
- the plurality of battery modules may be fastened to each other through fastening holes H formed in the front end plate 500 and/or the rear end plate 600. do.
- a battery pack according to an embodiment of the present invention may include at least one battery module according to an embodiment of the present invention as described above.
- the battery pack may include at least one battery module and additional components such as a pack housing and/or a battery management system (BMS).
- BMS battery management system
- a vehicle according to an embodiment of the present invention may include at least one battery module and/or battery pack as described above.
- a vehicle according to an embodiment of the present invention may be, for example, a hybrid vehicle or an electric vehicle operated by receiving electric power from the battery module and/or battery pack of the present invention.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (15)
- 복수의 배터리 셀 및 인접한 배터리 셀 사이에 개재되어 절연 냉각액이 상기 배터리 셀과 직접 접촉하며 흐를 수 있도록 하는 냉각액 유로를 구비하는 유로 스페이서를 포함하는 셀 적층체 어셈블리를 포함하는 서브 모듈;상기 서브 모듈을 수용하는 모듈 하우징;상기 모듈 하우징의 길이 방향 일 측 개구부를 커버하며 절연 냉각액의 유입을 위한 인렛을 구비하는 프론트 실링 플레이트; 및상기 모듈 하우징의 길이 방향 타 측 개구부를 커버하며 상기 절연 냉각액의 배출을 위한 아웃렛을 구비하는 리어 실링 플레이트;를 포함하는 배터리 모듈.
- 제1항에 있어서,상기 냉각액 유로는,상기 유로 스페이서의 길이 방향을 따라 연장되는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 유로 스페이서는,상기 유로 스페이서의 높이 방향을 따라 상기 유로 스페이서의 일 측에 위치하는 제1 배터리 셀 및 상기 유로 스페이서의 타 측에 위치하는 제2 배터리 셀과 교번하여 접하는 것을 특징으로 하는 배터리 모듈.
- 제3항에 있어서,상기 냉각액 유로는,상기 유로 스페이서와 상기 제1 배터리 셀 사이에 형성되는 제1 냉각액 유로 및 상기 유로 스페이서와 상기 제2 배터리 셀 사이에 형성되는 제2 냉각액 유로를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제4항에 있어서,상기 제1 냉각액 유로 및 제2 냉각액 유로는,상기 유로 스페이서의 높이 방향을 따라 교번하여 형성되는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 유로 스페이서는,상기 유로 스페이서의 일 측에 위치하는 제1 배터리 셀 및 타 측에 위치하는 제2 배터리 셀과 이격되어 배치되는 제1 부분; 및상기 제1 배터리 셀 및 제2 배터리 셀과 접하는 제2 부분;을 포함하는 것을 특징으로 하는 배터리 모듈.
- 제6항에 있어서,상기 냉각액 유로는,상기 제1 부분과 제1 배터리 셀 사이 및 상기 제2 부분과 제2 배터리 셀 사이에 각각 형성되는 제1 냉각액 유로; 및상기 제2 부분에 의해 둘러싸인 제2 냉각액 유로;를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제7항에 있어서,상기 제1 냉각액 유로를 통해 흐르는 절연 냉각액은, 직접 접촉을 통한 냉각을 수행하고,상기 제2 냉각액 유로를 통해 흐르는 절연 냉각액은, 간접 접촉을 통한 냉각을 수행하는 것을 특징으로 하는 배터리 모듈.
- 제7항에 있어서,상기 제1 냉각액 유로 및 제2 냉각액 유로는,상기 유로 스페이서의 높이 방향을 따라 교번하여 형성되는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 유로 스페이서는,상기 서브 모듈의 상단과 모듈 하우징 사이 및 상기 서브 모듈의 하단과 모듈 하우징 사이에 각각 개재되는 제1 스페이서; 및서로 인접한 한 쌍의 배터리 셀 사이에 개재되는 제2 스페이서;를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제10항에 있어서,상기 제2 스페이서는,상기 서로 인접한 한 쌍의 배터리 셀 사이에 형성되는 공간 내에 부분적으로 개재되는 것을 특징으로 하는 배터리 모듈.
- 제10항에 있어서,상기 제2 스페이서는,상기 제1 스페이서와 이격되어 배치되는 것을 특징으로 하는 배터리 모듈.
- 제10항에 있어서,상기 제2 스페이서는,상기 서로 인접한 한 쌍의 배터리 셀 사이를 연통시키는 복수의 스페이서 홀을 구비하는 것을 특징으로 하는 배터리 모듈.
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 모듈을 포함하는 배터리 팩.
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 모듈을 포함하는 자동차.
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|---|---|---|---|
| JP2023516783A JP7657917B2 (ja) | 2021-06-08 | 2022-06-07 | バッテリーモジュール、それを含むバッテリーパック及び自動車 |
| EP22820532.4A EP4216343B1 (en) | 2021-06-08 | 2022-06-07 | Battery module, and battery pack and vehicle including the same |
| US18/034,967 US20230411732A1 (en) | 2021-06-08 | 2022-06-07 | Battery Module, and Battery Pack and Vehicle Including the Same |
| CN202280006726.9A CN116325296A (zh) | 2021-06-08 | 2022-06-07 | 电池模块以及包括该电池模块的电池组和车辆 |
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| KR10-2021-0074423 | 2021-06-08 | ||
| KR1020210074423A KR102862200B1 (ko) | 2021-06-08 | 2021-06-08 | 절연 냉각액을 이용한 냉각 구조를 갖는 배터리 모듈, 그리고 이를 포함하는 배터리 팩 및 자동차 |
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| WO2022260404A1 true WO2022260404A1 (ko) | 2022-12-15 |
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| PCT/KR2022/008019 Ceased WO2022260404A1 (ko) | 2021-06-08 | 2022-06-07 | 배터리 모듈, 그리고 이를 포함하는 배터리 팩 및 자동차 |
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| US (1) | US20230411732A1 (ko) |
| EP (1) | EP4216343B1 (ko) |
| JP (1) | JP7657917B2 (ko) |
| KR (1) | KR102862200B1 (ko) |
| CN (1) | CN116325296A (ko) |
| WO (1) | WO2022260404A1 (ko) |
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| KR20240130464A (ko) * | 2023-02-22 | 2024-08-29 | 에스케이온 주식회사 | 배터리 케이스 및 이를 포함하는 배터리팩 |
| EP4700916A1 (en) * | 2023-11-20 | 2026-02-25 | LG Energy Solution, Ltd. | Battery assembly and battery pack |
| KR20250093807A (ko) * | 2023-12-18 | 2025-06-25 | 에스케이온 주식회사 | 냉각 포트를 포함하는 배터리 모듈 |
| WO2025237524A1 (en) * | 2024-05-16 | 2025-11-20 | Whitemark Technology GmbH | Battery module with heat exchanger housing for immersion cooling |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116325296A (zh) | 2023-06-23 |
| EP4216343A4 (en) | 2024-04-10 |
| US20230411732A1 (en) | 2023-12-21 |
| EP4216343B1 (en) | 2026-04-01 |
| EP4216343A1 (en) | 2023-07-26 |
| KR102862200B1 (ko) | 2025-09-18 |
| JP7657917B2 (ja) | 2025-04-07 |
| KR20220165590A (ko) | 2022-12-15 |
| JP2023541462A (ja) | 2023-10-02 |
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