WO2022030905A1 - 개선된 가스 벤팅 구조를 갖는 전지 모듈 및 이를 포함하는 전지 팩 - Google Patents
개선된 가스 벤팅 구조를 갖는 전지 모듈 및 이를 포함하는 전지 팩 Download PDFInfo
- Publication number
- WO2022030905A1 WO2022030905A1 PCT/KR2021/010035 KR2021010035W WO2022030905A1 WO 2022030905 A1 WO2022030905 A1 WO 2022030905A1 KR 2021010035 W KR2021010035 W KR 2021010035W WO 2022030905 A1 WO2022030905 A1 WO 2022030905A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- partition wall
- battery
- battery module
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
-
- 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
-
- 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
- H01M50/358—External gas exhaust passages located on the battery cover or case
-
- 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
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
-
- 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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- 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 having an improved gas venting structure and a battery pack including the same.
- a secondary battery is a battery that can be charged and discharged and can be used repeatedly.
- This battery pack is used as a power source for driving motors such as high-output hybrid electric vehicles (HEVs) and electric vehicles (EVs).
- HEVs high-output hybrid electric vehicles
- EVs electric vehicles
- a battery module in which a plurality of battery cells are combined or a battery pack including the battery modules is required.
- the battery module has a structure in which a plurality of battery cells are accommodated, and heat is generated in each battery cell during charging and discharging, and the generated heat reheats the surrounding battery cells.
- sparks or embers are emitted along with heat.
- Conventional battery modules emit sparks or embers in the process of discharging heat, which may cause a flame outside the battery module.
- a conventional battery module 10 has a structure in which a plurality of battery cells 20 are accommodated in a module case 11 .
- An end plate 14 on which a PCM substrate is mounted is positioned on one side of the module case 11 , and a gas vent hole 10 (a) for discharging gas is formed on one side of the end plate 14 . Heat or gas discharged during charging and discharging of the battery cell is discharged through the gas vent hole 10(a).
- the gas vent hole 10(a) has a structure formed to be biased toward one side of the battery module 10, and in the process of discharging heat or gas, heat is propagated toward the surrounding battery cells 20 and gas is discharged There is a limit that this is not easy.
- an additional gas venting hole 10(b) is also formed on the opposite side where the end plate 14 is located in the module case 10 . In this case, heat or gas may be more easily discharged.
- heat or gas is discharged together with heat propagating toward the surrounding battery cells 20 , heat generated in a specific battery cell 20 rapidly propagates to the surrounding battery cells 20 . is still there
- the present invention was devised to solve the above problems, and an object of the present invention is to provide a battery module having an improved gas venting structure and a battery pack including the same.
- the present invention provides a battery module.
- the battery module according to the present invention the module case is formed with an accommodating portion for accommodating the battery cells; and one or more battery cells accommodated in the module case, wherein a gas vent structure is formed on one or more side surfaces of the module case.
- the gas venting structure may include: a first barrier rib including a first gas venting hole and a first mesh structure covering the first gas venting hole; and a second barrier rib formed to be spaced apart from the first barrier rib by a predetermined distance and including a second gas venting hole and a second mesh structure covering the second gas venting hole.
- the first gas venting hole formed in the first barrier rib and the second gas venting hole formed in the second barrier rib are positioned in regions that are crossed from each other.
- the gas vent structure is a structure formed on both sides of the module case facing each other.
- the outflow path of the venting gas through the gas venting structure is a structure having two rotational paths based on a cross-section.
- each of the rotation paths is a path rotated vertically.
- the outflow path of the venting gas through the gas venting structure based on the cross-section, the venting gas discharged through the first mesh structure formed in the first partition wall is between the first partition wall and the second partition wall 1st rotation path that bends as it enters the separation space of ; and a secondary rotation path bent while being discharged through the second mesh structure formed in the second partition wall after passing through the space between the first partition wall and the second partition wall.
- the first and second gas venting holes are each independently a structure in which a through structure is connected in one direction on the first or second partition wall, or a structure in which a plurality of holes are spaced apart from each other by a predetermined distance on the same axis to be.
- the average diameter (D1) of the pores formed in the first mesh structure is greater than the average diameter (D2) of the pores formed in the second mesh structure, the following condition 1 is satisfied.
- the second partition wall constitutes an outer surface of the module case
- the first partition wall is a bracket structure fastened to the inner side of the second partition wall.
- the module case the bottom plate of the plate-shaped structure; and a U-shaped top plate having both ends bent in one direction to cover the bottom plate, wherein a gas venting structure is formed on one or both ends of the bent both ends of the top plate.
- the battery cells are oriented in a direction perpendicular to the side surface on which the gas vent structure of the module case is formed and accommodated in the module case.
- the present invention provides a battery pack including the battery module described above.
- the battery pack according to the present invention includes one or two or more battery modules; and a pack case for packaging the battery module.
- the battery module and the battery pack including the same form a gas vent structure including first and second barrier ribs each having a mesh structure on any one or two or more sides of the module case, thereby dissipating heat from the battery cell It has excellent efficiency and can block the outflow of sparks or embers even during thermal runaway of the battery cell.
- FIG. 1 is a cross-sectional view showing a perspective view and a gas venting path of a conventional battery module.
- FIG. 2 is a cross-sectional view showing a perspective view and a gas venting path of a battery module according to an embodiment of the present invention.
- FIG 3 is an enlarged view showing a gas venting path of the battery module according to an embodiment of the present invention.
- FIG. 4 is a partial cross-sectional view showing a gas venting path of the battery module according to another embodiment of the present invention.
- the present invention provides a battery module.
- the battery module according to the present invention the module case is formed with an accommodating portion for accommodating the battery cells; and one or more battery cells accommodated in the module case, wherein a gas vent structure is formed on one or more side surfaces of the module case.
- the gas venting structure may include: a first barrier rib including a first gas venting hole and a first mesh structure covering the first gas venting hole; and a second barrier rib formed to be spaced apart from the first barrier rib by a predetermined distance, the second barrier rib including a second gas venting hole and a second mesh structure covering the second gas venting hole, The formed first gas venting hole and the second gas venting hole formed in the second barrier rib are located in areas that cross each other.
- the battery module according to the present invention includes a gas venting structure formed of double barrier ribs on one or more side surfaces of the module case.
- a gas venting structure formed of double barrier ribs on one or more side surfaces of the module case.
- heat or gas emission efficiency may be increased.
- the conventional battery module has a limitation in that heat or gas is discharged in the direction of the gas vent hole, and heat propagation to the surrounding battery cells is performed together.
- the present invention has the advantage of not causing heat propagation to surrounding battery cells when heat or gas is discharged by forming one surface of the module case in a gas betting structure.
- the gas vent structure is a structure formed on one side of the module case, or a structure formed on two or more side surfaces of the module case.
- the gas vent structure is a structure formed on both sides of the module case facing each other.
- the gas vent structure is a structure formed in 50 to 100% of the area of the side of the module case.
- the gas venting structure is a structure formed in an area of 50 to 95% or 60 to 85% of the side surface of the module case.
- the formation area of the gas vent structure is the sum of the respective areas in which the first mesh structure formed on the first partition wall and the second mesh structure formed on the second partition wall are formed.
- the first and second mesh structures may be formed in an area of 15 to 60% or 30 to 50% of the first and second partition walls, respectively.
- a first mesh structure is formed on an area of 40 to 60% of the first barrier rib, and a second mesh structure is formed on an area of 30 to 50% of the second barrier rib, wherein the first and second mesh structures are formed Regions are structures that do not overlap each other.
- the gas venting structure is not a structure for forming a specific hole, but a structure formed over an area of a certain level or more. Through this, a phenomenon in which heat or gas is concentrated to a specific point in the process of being discharged is prevented.
- the outflow path of the venting gas through the gas venting structure is a structure having two rotational paths based on a cross-section. If the gas inside is released directly without a rotation path, heat and gas as well as other conductive components may be discharged together. As a result, thermal runaway between battery cells or between battery modules may occur.
- the present invention prevents the thermal runaway phenomenon by configuring the outlet path of the venting gas to have two rotation paths. In a specific embodiment, each of the rotation paths is a path rotated vertically.
- the venting gas discharged through the first mesh structure formed in the first partition wall is a space between the first partition wall and the second partition wall based on the cross-section.
- heat or gas inside the battery module is prevented from being directly discharged through the mesh structure formed on the partition wall.
- gas venting holes formed over a certain area are formed in each partition to induce smooth discharge of heat or gas, and in addition, the mesh structure formed in each partition serves to primarily block the discharge of conductive particles and the like. Furthermore, by configuring the gas venting structure to rotate twice, it is possible to prevent thermal runaway.
- the first and second gas venting holes are each independently a structure in which a through structure is connected in one direction on the first or second partition wall, or a plurality of holes are spaced apart from each other by a predetermined distance on the same axis.
- the structure formed For example, a straight through structure is formed in the first and/or second barrier ribs, and each mesh structure is positioned within or covering the through structure. Through this, a smooth discharge of heat or gas inside the battery module is induced.
- the first and/or second barrier ribs have a structure in which a plurality of holes are spaced apart from each other by a predetermined distance, and each mesh structure is located within or covering the through structure. Through this, the present invention can prevent a decrease in the mechanical strength of the module case due to the formation of the gas venting hole.
- the average diameter (D1) of the pores formed in the first mesh structure is greater than the average diameter (D2) of the pores formed in the second mesh structure, the following condition 1 is satisfied.
- the first mesh structure located on the inside has a structure in which relatively large pores are formed
- the second mesh structure located on the outside has a structure in which relatively small pores are formed.
- the average diameter (D1) of the pores formed in the first mesh structure is 1.1 to 3.5 times the average diameter (D2) of the pores formed in the second mesh structure, 1.1 to 2.5 times the range, 1.5 to 3 times the range , ranging from 2 to 3.5 times or from 1.5 to 2.5 times.
- the case where the average diameter (D1) of the pores formed in the first mesh structure is equal to the average diameter (D2) of the pores formed in the second mesh structure is not excluded.
- the heat or gas through the first mesh structure is smoothly discharged, and the particulate component not filtered in the first mesh structure is configured to be filtered by the second mesh structure.
- the efficiency of discharging heat or gas in the module case may be increased, and the safety of the battery module may be improved.
- the first and second barrier ribs forming the gas vent structure constitute one side of the module case.
- the second partition wall constitutes an outer surface of the module case
- the first partition wall is a bracket structure fastened to the inner side of the second partition wall.
- the gas venting structure according to the present invention may be a structure in which a side surface having a gas vent hole is formed in the module case, and a bracket in which a gas vent hole is also formed is formed on the inside or outside of the side surface on which the gas vent hole is formed. have.
- a mesh structure is formed to cover each of the gas venting holes.
- the module case the bottom plate of the plate-shaped structure; and a U-shaped top plate having both ends bent in one direction to cover the bottom plate, wherein a gas venting structure is formed on one or both ends of the bent both ends of the top plate.
- battery cells are stacked on a bottom plate of a plate-shaped structure, and a U-shaped top plate is positioned to cover the stacked battery cells.
- a gas vent structure is formed at one or both ends of the U-shaped top plate.
- the module case may include: a U-shaped bottom plate having both ends bent in one direction; and a top plate having a plate-shaped structure covering the open upper surface of the bottom plate is also possible.
- the battery module of the present invention has a structure in which a plurality of battery cells are accommodated.
- the battery cell is oriented in a direction perpendicular to the side surface of the module case on which the gas vent structure is formed and accommodated in the module case.
- the direction in which the battery cells are accommodated and the surface on which the gas venting structure is formed are vertically positioned.
- orientation direction of the battery cell and the side surface on which the gas vent structure is formed form a 'vertical direction' encompasses not only the case where they are physically perpendicular to 90 degrees but also the directions that intersect each other, for example, from 80 degrees to It should be interpreted as including the case of forming an angle of 110 degrees.
- the present invention provides a battery pack including the battery module described above.
- the battery pack according to the present invention one or two or more battery modules; and a pack case for packaging the battery module. Since the battery module is the same as described above, a detailed description thereof will be omitted.
- the battery pack can be used in various forms, for example, it can be applied as a power source of a vehicle.
- the battery pack may be applied as a power source for a hybrid vehicle or an electric vehicle.
- the battery module 100 includes: a module case 101 in which an accommodating part for accommodating the battery cells 102 is formed; and a plurality of battery cells 102 accommodated in the module case 101 .
- a gas vent structure is formed on both sides of the module case 101 .
- the gas venting structure formed on one surface may include: a first partition wall 110(a) including a first gas venting hole and a first mesh structure covering the first gas venting hole; and a second partition wall 120 ( a)), wherein the first gas venting hole formed in the first barrier rib 110 (a) and the second gas venting hole formed in the second barrier rib are located in areas that cross each other. Heat or gas generated from the housed battery cell 102 is discharged along the gas venting path 131 on the side where the gas venting structure is formed.
- the gas venting structure formed on another surface may include: a first barrier rib 110(b) including a first gas venting hole and a first mesh structure covering the first gas venting hole; and a second barrier rib 120 ( b)), wherein the first gas venting hole formed in the first barrier rib 110(b) and the second gas venting hole formed in the second barrier rib 110 (b) are located in a crossed region. Heat or gas generated from the housed battery cell 102 is discharged along the gas venting path 132 of the side where the gas venting structure is formed.
- FIG. 3 is an enlarged view showing a gas venting path of the battery module according to an embodiment of the present invention.
- an outflow path of a venting gas through the gas venting structure in the present invention has a structure having two rotational paths based on a cross-section.
- the module case according to the present invention includes a bottom plate having a plate-shaped structure and a U-shaped top plate having both ends bent in one direction to cover the bottom plate, and a gas vent structure is formed at both ends of the top plate bent. to be.
- the gas vent structure is discharged to the outside via the first and second partition walls 210 and 220 sequentially.
- the bent end of the U-shaped top plate forms the second partition wall 220 .
- brackets fastened to be spaced apart from each other by a predetermined distance on the inside of the second partition wall 220 form the first partition wall 210 .
- the venting gas discharged through the first mesh structure 211 formed in the first partition wall 210 is the first partition wall 210 based on the cross-section. and a primary rotation path that is bent while entering the space between the second partition wall 220; and a secondary rotation path that is bent while being discharged through the second mesh structure 221 formed in the second partition wall 220 after passing through the separation space between the first partition wall 210 and the second partition wall 220 do.
- heat or gas inside the battery module is prevented from being directly discharged in a straight path through the mesh structure formed in the partition wall.
- a gas vent hole is formed in the first partition wall 210 in an area of about 50%, thereby inducing smooth discharge of heat or gas, and primarily blocking the discharge of conductive particles.
- a gas vent hole is formed in the second barrier rib 220 in an area of about 40%, thereby inducing the smooth discharge of heat or gas, and primarily blocking the discharge of conductive particles and the like. Furthermore, by configuring the gas venting path to rotate twice, it is possible to prevent thermal runaway.
- FIG. 4 is a partial cross-sectional view showing a gas venting path of the battery module according to another embodiment of the present invention.
- the inside of the module case 301 forms a receiving part 330 in which the battery cells are accommodated, and a gas venting structure is formed at one end of the module case 301 .
- the gas vent structure includes a first partition wall 310 located inside and a second partition wall 320 located outside.
- the venting gas discharged through the first mesh structure 311 formed in the first partition wall 310 is the first partition wall 310 and the second partition wall based on a cross-section.
- the second mesh formed on the second partition wall 320 after passing through the separation space between the first partition wall 310 and the second partition wall 320 and rotating vertically as it enters the space between the partition walls (320). As it is discharged through the structure 321, it is vertically rotated in a second bent as it is discharged.
- the first mesh structure 311 has a structure in which relatively large pores are formed
- the second mesh structure 321 located outside has a structure in which relatively small pores are formed.
- the average diameter (D1) of the pores formed in the first mesh structure 311 is about twice as large as the average diameter (D2) of the pores formed in the second mesh structure 321 .
- the separation distance between the first partition wall 310 and the second partition wall 320 is about 1 to 5 mm.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (11)
- 전지 셀을 수납하는 수납부가 형성된 모듈 케이스; 및상기 모듈 케이스 내에 수납된 하나 또는 둘 이상의 전지 셀을 포함하되,상기 모듈 케이스의 하나 또는 둘 이상의 측면에는 가스 벤팅 구조가 형성되고,상기 가스 벤팅 구조는,제1 가스 벤팅 홀과 상기 제1 가스 벤팅 홀을 덮는 구조의 제1 메쉬 구조체를 포함하는 제1 격벽; 및상기 제1 격벽의 외측에 일정 거리 이격되어 형성되되, 제2 가스 벤팅 홀과 상기 제2 가스 벤팅 홀을 덮는 구조의 제2 메쉬 구조체를 포함하는 제2 격벽을 포함하고,상기 제1 격벽에 형성된 제1 가스 벤팅 홀과 제2 격벽에 형성된 제2 가스 벤팅 홀은 서로 엇갈리는 영역에 위치하는 구조인 전지 모듈.
- 제 1 항에 있어서,상기 가스 벤팅 구조는, 모듈 케이스의 서로 마주보는 양 측면에 형성된 구조인 전지 모듈.
- 제 1 항에 있어서,상기 가스 벤팅 구조를 통한 벤팅 가스(venting gas)의 유출 경로는, 단면을 기준으로, 2회의 회전 경로를 갖는 구조인 전지 모듈.
- 제 3 항에 있어서,상기 회전 경로는, 각각 수직으로 회전되는 경로인 전지 모듈.
- 제 1 항에 있어서,상기 가스 벤팅 구조를 통한 벤팅 가스의 유출 경로는, 단면을 기준으로,제1 격벽에 형성된 제1 메쉬 구조체를 통해 배출된 벤팅 가스가 제1 격벽과 제2 격벽 사이의 이격 공간으로 진입하면서 꺾이는 1차 회전 경로; 및제1 격벽과 제2 격벽 사이의 이격 공간을 경유한 후 제2 격벽에 형성된 제2 메쉬 구조체를 통해 배출되면서 배출되면서 꺾이는 2차 회전 경로를 포함하는 전지 모듈.
- 제 1 항에 있어서,제1 및 제2 가스 벤팅 홀은, 각각 독립적으로,제1 또는 제2 격벽 상에 관통 구조가 일 방향으로 이어진 구조이거나,복수의 홀이 동일 축 상에서 일정 거리 이격되어 형성된 구조인 전지 모듈.
- 제 1 항에 있어서,제1 메쉬 구조체에 형성된 기공의 평균 직경(D1)이 제2 메쉬 구조체에 형성된 기공의 평균 직경(D2) 보다 크고, 아래 조건 1을 만족하는 전지 모듈:[조건 1]0.9xD2≥ D1 ≥ 0.3xD2.
- 제 1 항에 있어서,상기 제2 격벽은 모듈 케이스의 외면을 구성하고,상기 제1 격벽은 제2 격벽의 내측에 체결된 브라켓 구조인 전지 모듈.
- 제 1 항에 있어서,상기 모듈 케이스는,판상형 구조의 바텀 플레이트; 및상기 바텀 플레이트를 덮도록 양측 단부가 일방향으로 절곡된 U자형 탑 플레이트를 포함하고,상기 탑 플레이트의 절곡된 양측 단부 중 어느 일측 혹은 양측에 가스 벤팅 구조가 형성된 구조인 전지 모듈.
- 제 1 항에 있어서,전지 셀은 모듈 케이스의 가스 벤팅 구조가 형성된 측면과 수직하는 방향으로 배향되어 모듈 케이스에 수납된 형태인 전지 모듈.
- 제 1 항에 따른 하나 또는 둘 이상의 전지 모듈; 및배터리 모듈을 패키징하는 팩 케이스;를 포함하는 전지 팩.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21853770.2A EP4087046A4 (en) | 2020-08-07 | 2021-08-02 | BATTERY MODULE HAVING AN IMPROVED GAS EVACUATION STRUCTURE, AND BATTERY PACK COMPRISING THE SAME |
| US17/799,527 US12476324B2 (en) | 2020-08-07 | 2021-08-02 | Battery module having improved gas venting structure, and battery pack including same |
| CN202180013301.6A CN115088124A (zh) | 2020-08-07 | 2021-08-02 | 具有改进的气体通风结构的电池模块和包括所述电池模块的电池组 |
| JP2022547277A JP7601421B2 (ja) | 2020-08-07 | 2021-08-02 | 改善されたガスベンティング構造を有する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 |
|---|---|---|---|
| KR10-2020-0099333 | 2020-08-07 | ||
| KR1020200099333A KR102834722B1 (ko) | 2020-08-07 | 2020-08-07 | 개선된 가스 벤팅 구조를 갖는 전지 모듈 및 이를 포함하는 전지 팩 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022030905A1 true WO2022030905A1 (ko) | 2022-02-10 |
Family
ID=80118177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/010035 Ceased WO2022030905A1 (ko) | 2020-08-07 | 2021-08-02 | 개선된 가스 벤팅 구조를 갖는 전지 모듈 및 이를 포함하는 전지 팩 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12476324B2 (ko) |
| EP (1) | EP4087046A4 (ko) |
| JP (1) | JP7601421B2 (ko) |
| KR (1) | KR102834722B1 (ko) |
| CN (1) | CN115088124A (ko) |
| WO (1) | WO2022030905A1 (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102928392B1 (ko) * | 2022-02-17 | 2026-02-13 | 주식회사 엘지에너지솔루션 | 벤팅 가스의 압력에 따라 가스 배출 통로의 폭이 가변적으로 조절되는 배터리 모듈 및 이를 포함하는 배터리 팩 |
| CN117941148A (zh) * | 2022-05-16 | 2024-04-26 | 株式会社Lg新能源 | 电池组和包括该电池组的车辆 |
| KR102670474B1 (ko) * | 2022-05-17 | 2024-05-30 | 에스케이온 주식회사 | 열폭주 전파를 방지하는 배터리 모듈 |
| EP4376198B1 (en) * | 2022-07-20 | 2026-05-06 | LG Energy Solution, Ltd. | Battery pack and device including the same |
| US20240113387A1 (en) * | 2022-09-30 | 2024-04-04 | Rivian Ip Holdings, Llc | Systems and methods for reducing turbulent combustion |
| CN119816991A (zh) * | 2022-11-22 | 2025-04-11 | 株式会社Lg新能源 | 电池组和包括该电池组的装置 |
| WO2024112166A1 (ko) * | 2022-11-25 | 2024-05-30 | 주식회사 엘지에너지솔루션 | 전지 모듈 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100669410B1 (ko) * | 2004-11-29 | 2007-01-15 | 삼성에스디아이 주식회사 | 전지 모듈 |
| CN107452909A (zh) * | 2017-07-04 | 2017-12-08 | 系统电子科技(镇江)有限公司 | 一种用于新能源汽车电池包的箱体 |
| US20190097192A1 (en) | 2017-09-27 | 2019-03-28 | Lg Chem, Ltd. | Battery module, and battery pack and vehicle including the same |
| KR20200008624A (ko) * | 2017-10-30 | 2020-01-28 | 주식회사 엘지화학 | 배터리 모듈 및 배터리 모듈을 조립하는 방법 |
| KR20200041708A (ko) * | 2018-10-12 | 2020-04-22 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 이러한 배터리 랙을 포함하는 전력 저장 장치 |
| KR20200099333A (ko) | 2019-02-14 | 2020-08-24 | 에스지이엔지 주식회사 | 천정형 전기차량 충전장치 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7642006B2 (en) | 2004-11-29 | 2010-01-05 | Samsung Sdi Co., Ltd. | Secondary battery module |
| US7964300B2 (en) | 2005-09-30 | 2011-06-21 | Tdk-Lambda Corporation | Battery pack |
| US9281506B2 (en) | 2008-12-03 | 2016-03-08 | Lenovo (Singapore) Pte. Ltd. | Battery cell containment and venting |
| JP5491899B2 (ja) | 2010-02-19 | 2014-05-14 | 株式会社東芝 | 二次電池モジュール |
| JP6283964B2 (ja) * | 2014-02-07 | 2018-02-28 | パナソニックIpマネジメント株式会社 | 電池モジュール |
| JP6252313B2 (ja) * | 2014-03-31 | 2017-12-27 | 株式会社Gsユアサ | 蓄電装置 |
| US10141554B2 (en) * | 2015-02-10 | 2018-11-27 | Vertiv Energy Systems, Inc. | Enclosures and methods for removing hydrogen gas from enclosures |
| KR102072098B1 (ko) | 2015-07-29 | 2020-01-31 | 주식회사 엘지화학 | 안전성이 향상된 이차전지, 전지 모듈 및 전지 팩 |
| DE102015115728A1 (de) | 2015-09-17 | 2017-03-23 | Hoppecke Advanced Battery Technology Gmbh | Gehäuseanordnung für zumindest eine Batteriezelle |
| EP3333934B1 (en) * | 2015-10-28 | 2023-01-25 | Murata Manufacturing Co., Ltd. | Electric device case and battery pack provided with same |
| KR102061872B1 (ko) | 2016-01-28 | 2020-01-02 | 주식회사 엘지화학 | 이차전지 팩 케이스 및 이를 포함하는 이차전지 팩 |
| WO2017138793A1 (ko) | 2016-02-12 | 2017-08-17 | 주식회사 엘지화학 | 안전성이 개선된 셀 모듈 어셈블리 수용구조 |
| CN107029507A (zh) | 2017-05-27 | 2017-08-11 | 佛山市三水万瑞达环保科技有限公司 | 一种从气体流中去除颗粒的过滤器 |
| CN107240736A (zh) | 2017-07-04 | 2017-10-10 | 系统电子科技(镇江)有限公司 | 一种新能源汽车电池包的风冷系统 |
| US12237533B2 (en) | 2019-01-25 | 2025-02-25 | Panasonic Energy Co., Ltd. | Battery pack |
-
2020
- 2020-08-07 KR KR1020200099333A patent/KR102834722B1/ko active Active
-
2021
- 2021-08-02 WO PCT/KR2021/010035 patent/WO2022030905A1/ko not_active Ceased
- 2021-08-02 EP EP21853770.2A patent/EP4087046A4/en active Pending
- 2021-08-02 US US17/799,527 patent/US12476324B2/en active Active
- 2021-08-02 CN CN202180013301.6A patent/CN115088124A/zh active Pending
- 2021-08-02 JP JP2022547277A patent/JP7601421B2/ja active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100669410B1 (ko) * | 2004-11-29 | 2007-01-15 | 삼성에스디아이 주식회사 | 전지 모듈 |
| CN107452909A (zh) * | 2017-07-04 | 2017-12-08 | 系统电子科技(镇江)有限公司 | 一种用于新能源汽车电池包的箱体 |
| US20190097192A1 (en) | 2017-09-27 | 2019-03-28 | Lg Chem, Ltd. | Battery module, and battery pack and vehicle including the same |
| KR20190036260A (ko) * | 2017-09-27 | 2019-04-04 | 주식회사 엘지화학 | 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
| KR20200008624A (ko) * | 2017-10-30 | 2020-01-28 | 주식회사 엘지화학 | 배터리 모듈 및 배터리 모듈을 조립하는 방법 |
| KR20200041708A (ko) * | 2018-10-12 | 2020-04-22 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 랙 및 이러한 배터리 랙을 포함하는 전력 저장 장치 |
| KR20200099333A (ko) | 2019-02-14 | 2020-08-24 | 에스지이엔지 주식회사 | 천정형 전기차량 충전장치 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4087046A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115088124A (zh) | 2022-09-20 |
| US12476324B2 (en) | 2025-11-18 |
| JP2023513503A (ja) | 2023-03-31 |
| US20230082942A1 (en) | 2023-03-16 |
| EP4087046A1 (en) | 2022-11-09 |
| JP7601421B2 (ja) | 2024-12-17 |
| KR20220018796A (ko) | 2022-02-15 |
| EP4087046A4 (en) | 2023-08-30 |
| KR102834722B1 (ko) | 2025-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022030905A1 (ko) | 개선된 가스 벤팅 구조를 갖는 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2022182016A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2022270746A1 (ko) | 가스 배출 경로를 개선한 배터리 팩 | |
| WO2024039125A1 (ko) | 벤팅 가스 배출 패시지가 형성된 이중 탑커버를 구비한 배터리 팩 | |
| WO2022244994A1 (ko) | 가스 벤팅 패스를 구비한 배터리 팩 | |
| WO2022045591A1 (ko) | 대형 배터리 모듈 및 이를 포함하는 배터리 팩 | |
| WO2020197111A1 (ko) | 배터리 모듈, 이를 포함하는 배터리 랙 및 전력 저장 장치 | |
| WO2022055130A1 (ko) | 배터리 모듈들 간의 열확산 방지구조를 적용한 배터리 팩 | |
| WO2020189965A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2022149961A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
| WO2020246721A1 (ko) | 배터리 랙 및 이를 포함하는 전력 저장 장치 | |
| WO2022055088A1 (ko) | 배터리 모듈들 간의 열확산 방지구조를 적용한 배터리 팩 | |
| WO2022149962A1 (ko) | 배터리 모듈, 그리고 이를 포함하는 배터리 팩 | |
| WO2016148387A1 (ko) | 전지 압축 저지체와 이를 포함하는 전지 모듈 | |
| WO2024076019A1 (ko) | 가스 벤팅패스를 구비한 배터리 팩 | |
| WO2023243875A1 (ko) | 화재 안전성을 개선한 배터리 팩 | |
| WO2021210805A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2021210806A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
| WO2023027372A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2024167263A1 (ko) | 배터리 팩 및 이를 포함하는 자동차 | |
| WO2023022412A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
| WO2022154443A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 | |
| WO2022216122A1 (ko) | 전지팩 및 이를 포함하는 디바이스 | |
| WO2021002712A1 (ko) | 배터리 모듈, 이를 포함하는 배터리 팩 및 전력 저장 장치 | |
| WO2025263712A1 (ko) | 배터리 모듈 및 배터리 팩 및 자동차 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21853770 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2022547277 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2021853770 Country of ref document: EP Effective date: 20220801 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWG | Wipo information: grant in national office |
Ref document number: 17799527 Country of ref document: US |