WO2022149899A1 - 전지 모듈 및 이를 포함하는 전지팩 - Google Patents
전지 모듈 및 이를 포함하는 전지팩 Download PDFInfo
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- WO2022149899A1 WO2022149899A1 PCT/KR2022/000283 KR2022000283W WO2022149899A1 WO 2022149899 A1 WO2022149899 A1 WO 2022149899A1 KR 2022000283 W KR2022000283 W KR 2022000283W WO 2022149899 A1 WO2022149899 A1 WO 2022149899A1
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- Prior art keywords
- battery
- cell stack
- battery cell
- exterior member
- 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
- H01M50/20—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
- H01M50/242—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 against vibrations, collision impact or swelling
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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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
- H01M50/249—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
- H01M50/20—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
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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
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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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
- H01M10/64—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
- 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 having improved cooling performance and improved swelling of a battery cell, and a battery pack including the same.
- secondary batteries are of great interest not only as mobile devices such as mobile phones, digital cameras, notebooks, and wearable devices, but also as energy sources for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles.
- the mid-to-large-sized battery module be manufactured as small as possible in size and weight, a prismatic battery, a pouch-type battery, etc. that can be stacked with a high degree of integration and have a small weight to capacity are mainly used as battery cells of the mid- to large-sized battery module.
- the battery module in order to protect the battery cell stack from external impact, heat, or vibration, the front and back of the open front and rear may include a module frame for accommodating the battery cell stack in an internal space.
- FIG. 1 is a perspective view of a conventional battery module.
- FIG. 2 is a view showing a cross-section taken along the cutting line A-A of FIG. 1 .
- 3 is an enlarged view illustrating a part of FIG. 3 . 1 to 3
- the conventional battery module 10 accommodates a battery cell stack 12 in which a plurality of battery cells 11 are stacked in one direction, and the battery cell stack 12 .
- the module frames 30 and 40 include a lower frame 30 and an upper plate 40 having front and rear surfaces and an open upper surface, and mounting parts 35 may be formed on both sides of the lower frame 30 .
- the battery module 10 is fixed to the pack frame of the battery pack through a mounting bolt inserted into the mounting part 35 , which is disadvantageous in price in that it requires a separate fixing member, and the space occupied by the fixing member There is a problem such as a decrease in battery density due to this.
- the battery module 10 After attaching compression pads 15 to both sides of the battery cell stack 12 , the battery module 10 is mounted on the lower frame 30 in a state where both sides of the battery cell stack 12 are pressed. Accordingly, the conventional battery module 10 requires a separate pressurizing process for pressurizing the battery cell stack 12 , thereby complicating the process and the production line.
- the battery cell 11 swells due to deformation 11A in the width direction during the charging and discharging process.
- the compression pad 15 is limited in absorbing deformation in the width direction of the battery module 10 .
- the battery cell 11 repeats the process of expansion and contraction during charging and discharging. There is a problem in that the deformation of the frame occurs.
- An object of the present invention is to provide a battery module with improved cooling performance and a battery pack including the same by improving the swelling phenomenon of the battery cell.
- a battery module includes: a battery cell stack including a plurality of battery cells stacked in a first direction; an exterior member surrounding the front and rear surfaces and both sides of the battery cell stack; and a sensing block positioned on the front and rear surfaces of the battery cell stack, wherein the sensing block is positioned between the exterior member and the front and rear surfaces of the battery cell stack, and upper and lower surfaces of the battery cell stack are exposed.
- An outer surface of the exterior member of the battery module may be exposed.
- the exterior member may have a width equal to or smaller than the width of the battery cell.
- the exterior member may be positioned adjacent to a lower portion of the battery cell stack.
- the exterior member may be made of an elastic material.
- the exterior member may be formed by wrapping the front and back surfaces and both sides of the battery cell stack by the film of the elastic material.
- the exterior member may be formed of a heat-shrinkable tube, and upper and lower surfaces of the heat-shrinkable tube may be open.
- a compression pad may be positioned between the exterior member and both side surfaces of the battery cell stack.
- the compression pad may extend along a side surface of the battery cell stack.
- the above-described battery module is mounted on a pack frame, and the pack frame covers a lower pack frame on which at least two of the battery modules are mounted and an upper portion of the at least two battery modules. Includes an upper pack frame.
- the lower pack frame may include a plurality of module areas to which the battery module is mounted, and the plurality of module areas may be divided into a plurality of beams extending from one side of the lower pack frame toward the other side.
- An outer surface of the exterior member surrounding both sides of the battery cell stack may be in contact with the beam.
- a thermally conductive resin layer may be respectively formed on the module region.
- a lower surface of the battery cell laminate may be in contact with the thermally conductive resin layer.
- the present invention provides a battery module and a battery pack including the same to improve the swelling phenomenon of the battery cell by including an exterior member surrounding the front and rear and both sides of the battery cell stack, and the cooling performance is improved can do.
- FIG. 1 is a perspective view of a conventional battery module.
- FIG. 2 is a view showing a cross-section taken along the cutting line A-A of FIG. 1 .
- FIG. 3 is an enlarged view illustrating a part of FIG. 3 .
- FIG. 4 is a perspective view of a battery module according to an embodiment of the present invention.
- FIG. 5 is an exploded perspective view of the battery module of FIG. 4 .
- FIG. 6 is a view showing a cross-section taken along the cutting line B-B of FIG. 4 .
- FIG. 7 is a perspective view of a battery pack according to another embodiment of the present invention.
- FIG. 8 is an exploded perspective view of an upper pack frame in the battery pack of FIG. 7 .
- FIG. 9 is an exploded perspective view of components of the battery pack of FIG. 7 .
- FIG. 10 is a view showing a part of a cross-section taken along the cutting line C-C of FIG. 7 .
- FIG. 11 is an enlarged view showing a part of FIG. 10 .
- planar view it means when the target part is viewed from above, and when it is referred to as “cross-section”, it means when the cross-section obtained by cutting the target part vertically is viewed from the side.
- FIG. 4 is a perspective view of a battery module according to an embodiment of the present invention.
- 5 is an exploded perspective view of the battery module of FIG. 4 .
- FIG. 6 is a view showing a cross-section taken along the cutting line B-B of FIG. 4 .
- the battery module 100 includes a battery cell stack 120 including a plurality of battery cells 110 stacked in a first direction; an exterior member 150 surrounding the front and rear surfaces and both sides of the battery cell stack 120 ; and a sensing block 170 positioned on the front and rear surfaces of the battery cell stack 120 .
- a plurality of battery cells 110 are stacked in the battery cell stack 120 wrapped in the exterior member 150 , and the battery cell 110 is preferably a pouch-type battery cell.
- the battery cell 110 may be manufactured by accommodating the electrode assembly in a pouch case of a laminate sheet including a resin layer and a metal layer, and then thermally sealing a sealing part of the pouch case.
- the battery cells 110 may be configured in plurality, and the plurality of battery cells 110 form a stacked battery cell stack 120 to be electrically connected to each other.
- the sensing block 170 may be positioned between the exterior member 150 and the front and rear surfaces of the battery cell stack 120 .
- the sensing block 170 covers the front and rear surfaces of the battery cell stack 120 from which electrode leads (not shown) protrude, respectively.
- the sensing block 170 may have a kind of basket shape, and may be configured to cover the front surface and the rear surface of the battery cell stack 200 , respectively.
- at least one slit is formed in the sensing block 170, and when the sensing block 170 is disposed, the electrode leads (not shown) of the battery cell 110 pass through the slit, An electrode lead assembly may be formed.
- the exterior member 150 surrounds the sensing block 170 located on the front and rear surfaces of the battery cell stack 120 , and the battery module 100 according to this embodiment is the slit of the sensing block 170 . It is possible to secure insulation performance for the electrode lead assembly formed by passing through.
- the sensing block 170 may include a material having electrical insulation, for example, a plastic material, a polymer material, or a composite material.
- a material having electrical insulation for example, a plastic material, a polymer material, or a composite material.
- the present invention is not limited thereto, and any material having electrical insulation properties while ensuring rigidity in which at least one slit can be formed may be applied without limitation.
- the exterior member 150 may surround the outer surface of the battery cell stack 120 .
- the exterior member 150 is a member composed of both sides and front and rear surfaces, and may have upper and lower surfaces open. That is, the battery cell stack 120 may have both sides and front and rear surfaces covered by the exterior member 150 , and the upper and lower surfaces may be open. In other words, upper and lower surfaces of the battery cell stack 120 may be exposed.
- the exterior member 150 may be made of an elastic material.
- the elastic material may be made of at least one of a material such as polyethylene (PE, Polyethylene) and polytetrafluoroethylene (PTFE, Polytetrafluoroethylene).
- the exterior member 150 may be formed by wrapping the outer surface of the battery cell stack by the film of the elastic material or the heat-shrinkable tube.
- the heat-shrinkable tube may have an open top and bottom.
- the present invention is not limited thereto, and any material having elasticity capable of sufficiently pressing the battery cells 110 included in the battery cell stack 120 while effectively absorbing external shocks may be applied without limitation.
- the exterior member 150 may prevent swelling of the battery cell and improve dimensional stability of the battery module.
- the exterior member 150 since the exterior member 150 has elasticity by itself, there is an advantage that deformation according to a change in the volume of the battery cell 110 can be minimized.
- both sides and front and rear surfaces of the exterior member 150 may have a size corresponding to the size of the outer surface of the battery cell stack, respectively, before wrapping the battery cell stack 120 .
- both side surfaces of the exterior member 150 may have the same size as the side surface of the battery cell stack 120 or have a size smaller than this.
- the front and rear surfaces of the exterior member 150 may have the same size as the upper and lower surfaces of the battery cell stack 120 or have a size smaller than this.
- the exterior member 150 may press the battery cell stack 120 in a predetermined direction and surround the battery cell stack 120 . That is, the exterior member 150 presses the battery cells 110 included in the battery cell stack 120 in a certain direction to prevent swelling of the battery cells and improve dimensional stability of the battery module. .
- the battery cell stack 120 is simultaneously pressed, so there is no need for a process of separately pressing the battery cell stack 120 . , processes and production lines can be simplified.
- the exterior member 150 may have a width equal to or smaller than the width of the battery cell 120 .
- the exterior member 150 may be located adjacent to the lower portion of the battery cell stack 120 . Accordingly, in the present embodiment, while minimizing the area of the exterior member 150, it is possible to prevent the swelling of the battery cell and improve the dimensional stability of the battery module.
- the outer surface of the exterior member 150 may be exposed while the battery cell stack 120 is wrapped around the exterior member 150 . That is, when the battery module 100 is mounted on the pack frames 1200 and 1300 of the battery pack 1000 in a process to be described later, the exterior member 150 may contact the pack frames 1200 and 1300 .
- the exterior member 150 can replace the module frames 30 and 40 in the conventional battery module 10, there is an advantage that can increase the efficiency of the process and cost.
- the outer surface of the battery cell stack 120 may be attached to the inner surface of the exterior member 150, respectively.
- the elastic material included in the exterior member 150 may have an adhesive force by itself.
- the exterior member 150 and the battery cell stack 120 may be fixed through a frictional force between the inner surface of the exterior member 150 and the outer surface of the battery cell stack 120 .
- a separate adhesive layer may be formed between the exterior member 150 and the battery cell stack 120 .
- each of the adhesive layers may be formed of a tape or coated with an adhesive binder. More preferably, the adhesive layer is coated with an adhesive binder or made of a double-sided tape, so that the battery cell stack 120 and the exterior member 150 can be easily fixed.
- the present invention is not limited thereto, and any material having adhesive performance capable of fixing the battery cells 110 or between the battery cells 110 and the exterior member 150 to each other may be applied without limitation.
- the battery cell stack 120 may be stably accommodated in the exterior member 150 .
- a compression pad 115 may be positioned between the exterior member 150 and the outer surface of the battery cell stack 120 .
- the compression pad 115 may extend along the outer surface of the battery cell stack 120 .
- the compression pad 115 may have the same or smaller size than the outer surface of the battery cell stack 120 .
- the compression pad 115 may be a pad made of a polyurethane material.
- the present invention is not limited thereto, and any material capable of absorbing a change in volume during expansion of the battery cell 110 may be applied.
- the compression pad 115 easily absorbs the expansion generated in the battery cells 110 included in the battery cell stack 120 , so that the exterior member 150 protects the outer surface of the battery cell stack 120 . It can help pressurize.
- the compression pad 115 and the battery cell 110 may be fixed to each other by a surface pressure applied from the exterior member 150 . Accordingly, the compression pad 115 and the battery cell 110 may be stably fixed to each other without a separate adhesive layer.
- an adhesive layer may be positioned between the compression pad 115 and the battery cell 110 .
- the adhesive layer may be formed by an adhesive member such as a double-sided tape or an adhesive.
- the adhesive layer is not limited to the above, and is not limited as long as it is a material having adhesive performance capable of fixing the battery cell 110 and the compression pad 115 to each other.
- the battery cell stack 120 is rigid in the first direction (stacking direction). and energy density may be further improved.
- FIG. 7 is a perspective view of a battery pack according to another embodiment of the present invention.
- 8 is an exploded perspective view of an upper pack frame in the battery pack of FIG. 7 .
- 9 is an exploded perspective view of components of the battery pack of FIG. 7 .
- the battery pack 1000 according to another embodiment of the present invention includes the battery module 100 described above. Meanwhile, one or more of the battery modules 100 may be packaged in the pack frames 1200 and 1300 to form the battery pack 1000 .
- the lower pack frame 1300 includes a plurality of module areas in which the battery module 100 is mounted, and the plurality of module areas are different from one side of the lower pack frame 1300 . It may be divided into a plurality of beams 1310 extending toward the side.
- the plurality of beams 1310 may extend in a vertical or horizontal direction based on a traveling direction of a device on which the battery pack 1000 is mounted.
- the device may be a vehicle, and the plurality of beams 1310 may extend in a vertical or horizontal direction based on a traveling direction of the vehicle in which the battery pack 1000 is mounted.
- a thermally conductive resin layer 1340 may be formed on the module area divided by a plurality of beams 1310 , respectively. have.
- the thermally conductive resin layer 1340 may be formed at a position corresponding to the battery module 100 mounted in the module region divided by a plurality of beams 1310 .
- the thermally conductive resin layer 1340 may be formed by coating a thermally conductive resin on the lower pack frame 1300 . That is, before the battery module 100 is mounted on the module region, the thermally conductive resin layer 1340 may be formed as the previously applied thermally conductive resin is cured. Accordingly, as the thermal conductive resin is cured, the lower surface of the battery module 100 and the lower pack frame 1300 may be stably fixed to each other. In addition, since a separate fixing member is not required, price competitiveness is improved, and battery density is increased.
- FIG. 10 is a view showing a part of a cross-section taken along the cutting line C-C of FIG. 7 .
- FIG. 11 is an enlarged view showing a part of FIG. 10 .
- the lower surface of the battery cell stack 120 of the battery module 100 is exposed, so that the lower surface of the battery cell stack 120 is exposed.
- the overheat conductive resin layer 1340 may be in contact with each other. Accordingly, heat generated inside the battery cell stack 120 can be directly transferred to the thermal conductive resin layer 1340 , so that the cooling performance of the battery module 100 can be further improved, and the battery cell 110 . lifespan can also be improved.
- the outer surface of the exterior member 150 of the battery module 100 may contact the beam 1310 . More specifically, the outer surface of the exterior member 150 surrounding both sides of the battery cell stack 120 may be in contact with the beam 1310 .
- the beam 1310 may press the outer surface of the exterior member 150 in contact with the beam 1310 with respect to the deformation 110A in the width direction generated during the charging and discharging process of the battery pack 1000 .
- the beam 1310 may be made of an elastic material.
- the elastic material may be made of at least one of a steel material such as a leaf spring or a plastic injection molding material.
- the present invention is not limited thereto, and any material having elasticity capable of sufficiently pressing the outer surface of the exterior member 150 of the battery module 100 while effectively absorbing an external shock may be applied without limitation.
- both sides of the battery module 100 are directed in the width direction of the battery module 100 by the beam 1310 , in other words, in the stacking direction of the battery cell stack 120 . Having elastic force, it is possible to prevent swelling of the battery cells occurring in the battery module 100 and improve the dimensional stability of the battery module.
- the above-described battery module and battery pack including the same may be applied to various devices.
- a device may be applied to transportation means such as an electric bicycle, an electric vehicle, and a hybrid vehicle, but the present invention is not limited thereto and is applicable to various devices that can use a battery module and a battery pack including the same. belong to the scope of the invention.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (14)
- 제1 방향을 따라 적층된 복수의 전지셀을 포함하는 전지셀 적층체;상기 전지셀 적층체의 전후면 및 양측면을 감싸는 외장 부재; 및상기 전지셀 적층체의 전후면에 위치하는 센싱 블록을 포함하고,상기 외장 부재와 상기 전지셀 적층체의 전후면 사이에 상기 센싱 블록이 위치하고,상기 전지셀 적층체의 상하면이 노출되어 있는 전지 모듈.
- 제1항에서,상기 전지 모듈의 상기 외장 부재의 외면이 노출되어 있는 전지 모듈.
- 제2항에서,상기 외장 부재는 상기 전지셀의 폭과 동일한 폭을 가지거나, 이보다 작은 폭을 가지는 전지 모듈.
- 제3항에서,상기 외장 부재는 상기 전지셀 적층체의 하부에 인접하게 위치하는 전지 모듈.
- 제3항에서,상기 외장 부재는 탄성 소재로 이루어지는 전지 모듈.
- 제5항에서,상기 외장 부재는 상기 탄성 소재의 필름이 상기 전지셀 적층체의 전후면 및 양측면을 랩핑하여 형성되는 전지 모듈.
- 제5항에서,상기 외장 부재는 열수축 튜브로 이루어지고,상기 열수축 튜브의 상하면이 개방되어 있는 전지 모듈.
- 제1항에서,상기 외장 부재와 상기 전지셀 적층체의 양측면 사이에 압축 패드가 위치하는 전지 모듈.
- 제8항에서,상기 압축 패드는 상기 전지셀 적층체의 측면을 따라 연장되어 있는 전지 모듈.
- 제1항의 전지 모듈이 팩 프레임에 장착되고,상기 팩 프레임은 적어도 두 개의 상기 전지 모듈이 장착되는 하부 팩프레임 및 상기 적어도 두 개의 전지 모듈의 상부를 덮는 상부 팩 프레임을 포함하는 전지 팩.
- 제10항에서,상기 하부 팩 프레임은 상기 전지 모듈이 장착되는 복수의 모듈 영역을 포함하고,상기 복수의 모듈 영역은 상기 하부 팩 프레임의 일측면에서 타측면을 향해 연장되어 있는 복수의 빔으로 구획되는 전지 팩.
- 제11항에서,상기 전지셀 적층체의 양측면을 감싸는 상기 외장 부재의 외면은 상기 빔과 서로 접하는 전지 팩.
- 제11항에서,상기 모듈 영역 상에 열전도성 수지층이 각각 형성되어 있는 전지 팩.
- 제13항에서,상기 전지셀 적층체의 하면은 상기 열전도성 수지층과 접하는 전지 팩.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22736876.8A EP4170798B1 (en) | 2021-01-11 | 2022-01-07 | Battery module and battery pack comprising same |
| US18/019,643 US12586837B2 (en) | 2021-01-11 | 2022-01-07 | Battery module and battery pack including the same |
| JP2023506324A JP7531977B2 (ja) | 2021-01-11 | 2022-01-07 | 電池モジュールおよびそれを含む電池パック |
| CN202280005622.6A CN115885423A (zh) | 2021-01-11 | 2022-01-07 | 电池模块及包括该电池模块的电池组 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210003182A KR102807493B1 (ko) | 2021-01-11 | 2021-01-11 | 전지 모듈 및 이를 포함하는 전지팩 |
| KR10-2021-0003182 | 2021-01-11 |
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| Publication Number | Publication Date |
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| WO2022149899A1 true WO2022149899A1 (ko) | 2022-07-14 |
Family
ID=82358228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/000283 Ceased WO2022149899A1 (ko) | 2021-01-11 | 2022-01-07 | 전지 모듈 및 이를 포함하는 전지팩 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12586837B2 (ko) |
| EP (1) | EP4170798B1 (ko) |
| JP (1) | JP7531977B2 (ko) |
| KR (1) | KR102807493B1 (ko) |
| CN (1) | CN115885423A (ko) |
| WO (1) | WO2022149899A1 (ko) |
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| JP2024543106A (ja) * | 2022-08-24 | 2024-11-19 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよび当該電池モジュールを含む電池パック |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4474943A4 (en) * | 2023-04-27 | 2026-02-18 | Samsung Electronics Co Ltd | PORTABLE ELECTRONIC DEVICE INCLUDING A BATTERY |
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| JP7794966B2 (ja) | 2022-07-20 | 2026-01-06 | エルジー エナジー ソリューション リミテッド | バッテリーパックとこれに含まれるセルブロック及びこれを含む自動車 |
| JP2024543106A (ja) * | 2022-08-24 | 2024-11-19 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよび当該電池モジュールを含む電池パック |
| JP7744089B2 (ja) | 2022-08-24 | 2025-09-25 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよび当該電池モジュールを含む電池パック |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7531977B2 (ja) | 2024-08-13 |
| CN115885423A (zh) | 2023-03-31 |
| KR20220101311A (ko) | 2022-07-19 |
| EP4170798A1 (en) | 2023-04-26 |
| US20230291025A1 (en) | 2023-09-14 |
| EP4170798A4 (en) | 2024-08-21 |
| US12586837B2 (en) | 2026-03-24 |
| JP2023536870A (ja) | 2023-08-30 |
| EP4170798B1 (en) | 2026-03-25 |
| KR102807493B1 (ko) | 2025-05-13 |
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