WO2023229296A1 - 배터리 팩 - Google Patents
배터리 팩 Download PDFInfo
- Publication number
- WO2023229296A1 WO2023229296A1 PCT/KR2023/006812 KR2023006812W WO2023229296A1 WO 2023229296 A1 WO2023229296 A1 WO 2023229296A1 KR 2023006812 W KR2023006812 W KR 2023006812W WO 2023229296 A1 WO2023229296 A1 WO 2023229296A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outlet
- battery pack
- sealing plate
- module
- module area
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 238000005192 partition Methods 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 229920001169 thermoplastic Polymers 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
-
- 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
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- 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
-
- 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 pack.
- Lithium secondary batteries have risks such as explosion and fire due to heat generation, so ensuring safety is one of the important tasks. If you do not respond appropriately when such an abnormality occurs, the internal temperature of the secondary battery will rise rapidly due to heat generation, and the rapid rise in temperature may cause thermal runaway, which may lead to the explosion of the secondary battery and damage adjacent secondary batteries. There is a problem that it can spread and cause significant damage to the battery pack.
- control means are provided to monitor and control the voltage, current, etc. of the battery pack, or in case of a fire in the battery pack, a means to extinguish the fire externally is provided.
- these means alone are used to control the battery pack.
- the present invention was created to solve the above problems, and its purpose is to provide a battery pack equipped with a fire extinguishing device inside.
- a battery pack accommodating a battery module, comprising: a base plate including a plurality of module areas where the battery modules are located; a side wall extending along an edge of the base plate to surround the module area and vertically coupled to the base plate; and a partition wall coupled to the side wall and partitioning the base plate to form a plurality of module areas.
- It includes a pack case composed of, wherein the side wall is filled with high-pressure fire extinguishing gas, a gas charging part corresponding to the module area, an outlet opened so that the gas filling part communicates with the module area, and the fire extinguishing gas.
- It provides a battery pack that includes a sealing plate coupled to the outlet to seal it, and the sealing plate is coupled to the outlet to be detachable according to temperature changes in the module area.
- the sealing plate is coupled to the outlet by thermoplastic plastic, and may be separated from the outlet as the thermoplastic plastic is melted by high-temperature heat.
- the sealing plate may be made of a thermoplastic plastic material.
- the sealing plate may be melted by heat generated in the module area and separated from the outlet, or may be ruptured.
- the side wall may include a plurality of gas filling units corresponding to each module area.
- the side wall includes a front frame provided on one side of the base plate in the longitudinal direction, a rear frame provided opposite to the front frame, and a hollow side frame provided on both sides of the base plate in the width direction, and the gas filling unit. And an outlet may be formed in the side frame to correspond to each module area.
- the battery pack further includes an upper cover coupled to the open top of the pack case to cover the module area, and the module area can be surrounded and sealed by the upper cover, base plate, side wall, and partition. .
- the extinguishing gas may contain carbon dioxide.
- It further includes a sensor that detects heat, pressure, or fire within the module area, and when the sensor detects an abnormality exceeding a set temperature or pressure value, or detects the occurrence of a fire, the sealing plate is separated from the outlet. It may separate or rupture.
- the battery pack of the present invention can extinguish the fire by quickly spraying and releasing fire extinguishing gas when a fire occurs in a battery module housed therein.
- the temperature can be lowered by preventing internal overheating due to high-temperature gas generated from the battery module.
- FIG. 1 is a perspective view of a pack case included in a battery pack according to a first embodiment of the present invention.
- Figure 2 is a plan view of the pack case of Figure 1(a).
- Figure 3 is a plan view of the pack case of Figure 1(b).
- Figure 4 shows a perspective view of the pack case included in the battery pack according to the first embodiment of the present invention and a portion of the side frame cut away.
- Figure 5 shows a cross-section of a side frame included in a battery pack according to the first embodiment of the present invention.
- Figure 6 shows a portion of the side frame and seal plate adjacent to the module area.
- Figure 7 shows a battery module accommodated in the module area of Figure 6.
- Figure 8 shows the process in which a sealing plate made of thermoplastic material ruptures.
- Figure 9 shows a portion of the side frame and sealing plate included in the battery pack according to the second embodiment of the present invention.
- Figure 10 shows the process in which the sealing plate coupled to the outlet by the sealing resin ruptures.
- Fig. 11 is a perspective view of another battery pack according to the third embodiment.
- FIG. 12 shows a gas charging portion formed inside the side frame in the battery pack of FIG. 11.
- the present invention relates to a battery pack that accommodates a battery module (B), and the battery pack of the present invention is characterized by quickly extinguishing a fire.
- the battery pack of the present invention includes a pack case 1000 consisting of a base plate 100, a partition wall 300, and a side wall 200 including a gas charging part 211 filled with fire extinguishing gas (G).
- a pack case 1000 consisting of a base plate 100, a partition wall 300, and a side wall 200 including a gas charging part 211 filled with fire extinguishing gas (G).
- the fire extinguishing gas (G) used in the present invention is used to extinguish the fire and lower the temperature when a fire occurs in the accommodated battery module (B) or a high temperature gas occurs in the battery module (B).
- carbon dioxide or the like is used as the fire extinguishing gas (G).
- any material that can meet the purpose of the present invention can be used.
- the battery pack of the present invention can be roughly divided into two embodiments depending on the structure of the side wall 200.
- FIGS. 1 to 8 relate to a battery pack according to a first embodiment of the present invention
- FIGS. 9 to 10 relate to a battery pack according to a second embodiment of the present invention
- FIGS. 11 to 12 relate to a battery pack according to a first embodiment of the present invention. It relates to a battery pack according to the third embodiment.
- FIG. 1 is a perspective view of the pack case 1000 included in the battery pack according to the first embodiment of the present invention
- FIG. 2 is a plan view of the pack case 1000 of FIG. 1(a)
- FIG. 3 is a 1(b) is a top view of the pack case 1000.
- the pack case 1000 of the present invention is composed of a base plate 100, a side wall 200, and a partition wall 300.
- the pack case 1000 includes a plurality of module areas (A) in which a plurality of battery modules (B) can be separated and accommodated.
- the module area A is formed by being partitioned by a side wall 200 and a partition wall 300.
- the base plate 100 includes a plurality of module areas (A) where battery modules (B) are located. More specifically, each battery module (B) is inserted into each module area (A) and seated on the base plate 100, as shown in FIGS. 1(b) and 3.
- the side wall 200 extends along the edge of the base plate 100 to surround the module area A and is vertically coupled to the base plate 100.
- the partition 300 is coupled to the side wall 200 and divides the base plate 100 to form a plurality of module areas A. More specifically, the partition 300 includes a main partition 300 extending along the longitudinal direction of the base plate 100 so as to cross the base plate 100, and both ends of the main partition 300 and side walls ( 200) and includes a sub partition wall 300 coupled to the base plate 100 and spaced apart at predetermined intervals along the longitudinal direction of the main partition wall 300.
- the battery pack of the present invention may further include an upper cover (not shown) coupled to the open top of the pack case 1000 so that the module area A is covered. Accordingly, the module area A may be surrounded and sealed by the upper cover, base plate 100, side wall 200, and partition wall 300.
- the side wall 200 of the present invention consists of a front frame 220, a rear frame 230, and a side frame 210. More specifically, the side wall 200 includes a front frame 220 provided on one side in the longitudinal direction of the base plate 100, and a rear frame provided opposite to the front frame 220, as shown in FIGS. 1 to 3. It includes a frame 230 and hollow side frames 210 provided on both sides in the width direction of the base plate 100.
- the side wall 200 includes a gas charging part 211 filled with high-pressure fire extinguishing gas (G), an outlet 212 opened so that the gas filling part 211 communicates with the module area A, and the outlet. It includes a sealing plate (213) coupled to (212). More specifically, the gas charging unit 211 is included in the side frame 210.
- Figure 4 shows a perspective view of the pack case 1000 included in the battery pack according to the first embodiment of the present invention and a portion of the side frame 210 cut away.
- one side frame 210 includes a gas filling portion 211 corresponding to the module area A in contact with the side frame 210.
- any one gas charging unit 211 included in the side frame 210 corresponds to one module area (A) adjacent to the side frame 210. That is, the side frame 210 includes a plurality of gas filling units 211 corresponding to each adjacent module area (A).
- the gas filling part 211 extends along the longitudinal direction of the side frame 210, and the extended gas filling part 211 communicates with the corresponding module area A through the outlet 212. do. Accordingly, the gas charging part 211 and the outlet 212 of the present invention are formed to correspond to the number of module areas A included in the pack case 1000.
- the plurality of gas charging units 211 included in the battery pack according to the first embodiment of the present invention are separated from each other along the thickness direction of the side frame 210 and included in the side frame 210.
- the side frame 210 when three module areas A are adjacent to one side frame 210, three gas charging parts 211 that do not communicate with each other are located on the side frame 210. They are formed and included sequentially along the thickness direction of the frame 210.
- each gas charging unit 211 communicates with the corresponding module area A through an outlet 212 opened in the adjacent side wall 200. Accordingly, the sealing plate 213 that blocks the outlet 212 corresponding to each gas charging unit 211 may also be formed at different heights in each module area A.
- a gas filling part 211 is formed on the upper part of the side frame 210, and the gas filling part 211 is sealed at an outlet 212 opened toward the module area A.
- the plate 213 is coupled.
- a gas charging part 211 is formed in the center of the side frame 210, and a sealing plate is attached to the outlet 212 opened toward the module area A corresponding to the gas filling part 211. (213) is combined.
- a gas charging part 211 is formed in the lower part of the side frame 210, and a sealing plate is attached to the outlet 212 opened toward the module area (A) corresponding to the gas filling part 211. (213) is combined.
- FIG. 6 shows a portion of the side frame 210 and the sealing plate 213 adjacent to the module area (A), and FIG. 7 shows the battery module (B) accommodated in the module area (A) of FIG. 6.
- the outlet 212 is blocked by a sealing plate 213 coupled to the outlet 212 so that the fire extinguishing gas (G) filled in the gas charging unit 211 is sealed.
- the sealing plate 213 that blocks the outlet 212 is separated according to a change in temperature of the module area A corresponding to the outlet 212. That is, as shown in FIG. 7, when the battery module (B) accommodated in the module area (A) deteriorates or high-temperature gas is released, the sealing plate 213 adjacent to the battery module (B) is exposed to the battery module (B). It may be weakened by the heat generated from and separated from the outlet 212.
- the sealing plate 213 is coupled to the outlet 212 by thermoplastic plastic. Accordingly, the sealing plate 213 may be separated from the outlet 212 as the thermoplastic plastic is melted by the high temperature heat generated in the module area (A).
- the thermoplastic plastic may be, for example, polyethylene resin, polypropylene resin, etc. However, it is not limited to this, and any material that has excellent strength to resist pressure and has the property of melting or partially weakening at a certain temperature can be used as the thermoplastic plastic material.
- the sealing plate 213 is made of a thermoplastic material and can be manufactured by injection or compression molding.
- the sealing plate 213 made of the thermoplastic material may be melted by heat above the melting point of the thermoplastic plastic and may be separated from the outlet 212 or ruptured.
- FIG 8 briefly shows the process in which the sealing plate 213 made of thermoplastic material ruptures.
- the sealing plate 213 adjacent to the module area (A) where the battery module (B) is accommodated begins to weaken or melt due to heat.
- the weakened sealing plate 213 cannot withstand the pressure of the fire extinguishing gas (G) charged at high pressure in the gas charging unit 211 and ruptures, and the sealing plate 213 ruptures.
- the fire extinguishing gas (G) is released from the outlet 212 to lower the temperature of the module area (A).
- the battery pack of the present invention may further include a sensor (not shown) within each module area (A) where the battery module (B) is seated.
- the sensor is used to detect heat, pressure or fire, detects abnormalities exceeding preset temperature or pressure values, or detects the occurrence of fire.
- the battery pack of the present invention is interlocked with the sensor and may further include a fixing member (not shown) slidably coupled to the outlet 212 of the side frame 210 to fix the sealing plate 213. .
- the fixing member moves backward from the sealing plate 213 according to the signal from the sensor so that the sealing plate 213 is protruded in the direction of the module area (A).
- Figure 10 simply shows the process in which the sealing plate 213 coupled to the outlet 212 by the sealing resin 214 is ruptured.
- the sealing plate 213 adjacent to the module area (A) where the battery module (B) is accommodated begins to weaken or melt due to heat.
- the weakened sealing resin 214 is unable to withstand the pressure of the fire extinguishing gas (G) filled at high pressure in the gas charging unit 211 and is ruptured, and the sealing resin 214
- the sealing plate 213 coupled to the outlet 212 is pushed by the pressure of the fire extinguishing gas (G) and is ejected from the outlet 212.
- the fire extinguishing gas (G) is released from the outlet 212, thereby lowering the temperature of the module area (A).
- the battery pack according to the third embodiment of the present invention is characterized in that a plurality of gas charging units 211 are formed separately from each other along the longitudinal direction of the side frame 210. That is, unlike the battery pack according to the first embodiment in which the gas charging unit 211 formed inside the side frame 210 extends along the longitudinal direction of the side frame 210, in the battery pack according to the third embodiment Each gas charging unit 211 is separated to correspond to each module area (A) and included in the side frame 210.
- FIG. 11 is a perspective view of a battery pack according to a third embodiment
- FIG. 12 shows a gas charging unit 211 formed inside the side frame 210 in the battery pack of FIG. 11.
- a plurality of gas filling units 211 included within the side frame 210 are formed separately from each other along the longitudinal direction of the side frame 210.
- three gas charging parts 211 that do not communicate with each other are located on the side frame 210. They are formed and included sequentially along the longitudinal direction of the frame 210.
- each gas charging unit 211 communicates with the corresponding module area A through an outlet 212 opened in the adjacent side wall 200.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
Claims (11)
- 배터리 모듈을 수용하는 배터리 팩으로서,배터리 모듈이 위치하는 복수의 모듈 영역을 포함하는 베이스 플레이트;상기 모듈 영역을 감싸도록 상기 베이스 플레이트의 테두리를 따라 연장 형성되어 상기 베이스 플레이트에 수직하게 결합되는 측벽; 및상기 측벽과 결합되고, 상기 베이스 플레이트를 구획하여 복수의 모듈 영역을 형성하는 격벽; 으로 구성되는 팩 케이스를 포함하고,상기 측벽은,내부에 고압의 소화 가스가 충진되고, 상기 모듈 영역에 대응되는 가스 충전부, 상기 가스 충전부가 상기 모듈 영역과 연통되도록 개구된 배출구, 및 상기 소화 가스가 밀폐되도록 상기 배출구에 결합되는 밀봉판을 포함하고,상기 밀봉판은 상기 모듈 영역의 온도 변화에 따라 분리 가능하도록 상기 배출구와 결합되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 밀봉판은 열가소성 플라스틱에 의해 상기 배출구와 결합되고,고온의 열에 의해 상기 열가소성 플라스틱이 용융됨에 따라 상기 배출구로부터 분리되는 배터리 팩.
- 제1항에 있어서,상기 밀봉판은 열가소성 플라스틱 소재로 구성되는 배터리 팩.
- 제3항에 있어서,상기 밀봉판은 상기 모듈 영역에서 발생한 열에 의해 용융되어 상기 배출구로부터 분리되거나, 또는 파열되는 배터리 팩.
- 제1항에 있어서,상기 밀봉판 및 측벽의 배출구 사이에는 상기 밀봉판의 테두리를 따라 열가소성 플라스틱 소재로 구성되는 밀봉 수지가 개재되고,상기 밀봉판은 상기 밀봉 수지가 고온의 열에 의해 용융됨에 따라 상기 배출구로부터 분리되는 배터리 팩.
- 제1항에 있어서,상기 소화 가스는 상기 밀봉판이 상기 배출구로부터 분리됨에 따라 상기 배출구에 대응되는 모듈 영역으로 방출되는 배터리 팩.
- 제1항에 있어서,상기 측벽은 상기 각 모듈 영역에 대응하는 복수의 가스 충전부를 포함하는 배터리 팩.
- 제1항에 있어서,상기 측벽은 상기 베이스 플레이트의 길이 방향 일 측에 구비되는 전방 프레임, 상기 전방 프레임에 대향하여 구비되는 후방 프레임 및 상기 베이스 플레이트의 폭 방향 양측에 구비되는 중공 형태의 사이드 프레임을 포함하고,상기 가스 충전부 및 배출구는 각 모듈 영역에 대응되도록 상기 사이드 프레임에 형성되는 배터리 팩.
- 제1항에 있어서,상기 배터리 팩은,상기 모듈 영역이 덮어지도록 상기 팩 케이스의 개방된 상부와 결합되는 상부 커버를 더 포함하고,상기 모듈 영역은 상기 상부 커버, 베이스 플레이트, 측벽 및 격벽에 의해 둘러 쌓여서 밀폐되는 배터리 팩.
- 제1항에 있어서,상기 소화 가스는 이산화탄소를 포함하는 배터리 팩.
- 제1항에 있어서,상기 모듈 영역 내에 열, 압력 또는 화재를 감지하는 센서를 더 포함되고,상기 센서가 설정된 온도, 또는 압력 값을 초과하는 이상 현상을 감지하거나, 또는 화재 발생을 감지함에 따라 상기 밀봉판은 상기 배출구로부터 분리되거나, 또는 파열되는 배터리 팩.
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KR20220063181A (ko) | 2019-09-25 | 2022-05-17 | 꽁빠니 제네날 드 에따블리세망 미쉘린 | 무선 주파수 응답기를 포함하는 타이어 |
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- 2022-05-24 KR KR1020220063181A patent/KR20230163648A/ko unknown
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- 2023-05-19 WO PCT/KR2023/006812 patent/WO2023229296A1/ko active Application Filing
- 2023-05-19 CN CN202380012931.0A patent/CN117678116A/zh active Pending
- 2023-05-19 EP EP23812070.3A patent/EP4358255A1/en active Pending
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