WO2023239083A1 - 소화 기능이 구비된 배터리 모듈 어셈블리 및 이를 포함하는 배터리 팩 - Google Patents
소화 기능이 구비된 배터리 모듈 어셈블리 및 이를 포함하는 배터리 팩 Download PDFInfo
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- WO2023239083A1 WO2023239083A1 PCT/KR2023/006956 KR2023006956W WO2023239083A1 WO 2023239083 A1 WO2023239083 A1 WO 2023239083A1 KR 2023006956 W KR2023006956 W KR 2023006956W WO 2023239083 A1 WO2023239083 A1 WO 2023239083A1
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- Prior art keywords
- battery module
- module assembly
- fire
- battery
- opening
- Prior art date
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Images
Classifications
-
- 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
-
- 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
- H01M50/218—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
-
- 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
- H01M50/238—Flexibility or foldability
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/101—Bimetal
-
- 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 assembly equipped with a fire extinguishing function and a battery pack including the same. Specifically, the present invention relates to a battery module assembly equipped with a fire extinguishing function and, specifically, a fire extinguishing function that can prevent the fire from spreading to a nearby battery module assembly when a fire occurs inside the battery module assembly. It relates to a battery module assembly and a battery pack including the same.
- Secondary batteries that can store the generated electrical energy is increasing due to air pollution caused by the use of fossil fuels and the development of alternative energy due to energy depletion.
- Secondary batteries that can be charged and discharged are closely used in our daily lives, including in mobile devices, electric vehicles, and hybrid electric vehicles.
- FIG. 1 is a perspective view showing a battery storage system according to the prior art.
- the battery storage system according to the prior art includes a storage box 10, a storage unit 20 for storing the battery, a vacuum pump 30, and connecting the storage unit 20 and the vacuum pump 30. It is comprised of an exhaust pipe 40 and a fire extinguishing unit 50 that extinguishes a fire.
- the storage parts 20 where the batteries are stored are connected to the vacuum pump 30 through the exhaust pipe 40, and when a fire is detected in the storage part 20, the vacuum pump 30 operates. The fire is initially extinguished by creating a vacuum in the storage unit 20.
- the shape of the storage unit 20 is difficult to deform, not only does it require a lot of installation space, but it is also difficult to maintain in a vacuum state, and in particular, it has a structure that makes it difficult to discharge heat generated from the battery cells.
- Patent Document 1 Korean Patent Publication No. 2297771
- the present invention provides a fire extinguishing function that can prevent the spread of fire to nearby battery module assemblies by extinguishing the fire in the battery module assembly when a fire occurs in a battery cell stored inside the battery module assembly.
- the purpose is to provide a battery module assembly and a battery pack including the same.
- Another object of the present invention is to provide a battery module assembly equipped with a fire extinguishing function that can reliably exhaust air near the battery module and further increase space utilization, and a battery pack including the same.
- the purpose of the present invention is to provide a battery module assembly equipped with a fire extinguishing function and a battery pack including the same, which has a structure capable of discharging heat generated when the battery module operates normally.
- a battery module assembly equipped with a fire extinguishing function according to the present invention for achieving the above object includes a battery module 100 in which a plurality of battery cells are stored, and a fire detection sensor 200 provided on the outside of the battery module 100. ), when receiving a fire signal from the cover member 300 that houses the battery module 100 and the fire detection sensor 200 and the fire detection sensor 200, the air inside the cover member 300 is released to the outside. It is characterized in that it includes a pump 400 connected to the cover member 300 so as to discharge it.
- the cover member 300 includes a cover body 310, and an extension portion 320 connecting the cover body 310 and the pump 400. do.
- connection part 500 made of a bus bar or wire extending a predetermined length
- connection part 500 is provided on the cover body 310 from the outside. It is characterized in that a through hole 311 is formed so that it can be exposed.
- an opening 312 for entering and exiting the battery module 100 is formed in the cover body 310, and an opening and closing door 330 is provided in the opening 312. It is characterized by being
- the opening/closing door 330 is larger than the opening 312, and is partially fixed to the outer surface of the cover body 310.
- the opening 312 of the opening/closing door 330 is closed when the pump 400 sucks air inside the cover member 300, and the pump 400 ) is characterized in that it is a check valve type in which the opening 312 can be opened when supplying external air to the inside of the cover member 300.
- the cover body 310 and the extension portion 320 are characterized by being made of heat-resistant or flame-retardant material.
- the cover body 310 and the extension portion 320 are characterized by flexibility.
- the cover body 310 and the extension portion 320 are made of brominated flame retardant, silicon, polyvinyl chloride, polystyrene, ABS resin, and polyethylene terephthalate ( It is characterized by containing one or more of polyethylene terephthalate).
- the present invention may be a battery pack including a plurality of battery module assemblies having the above-described characteristics.
- the method of operating the above-described battery pack according to the present invention includes a first step of monitoring whether or not a fire is detected using a fire detection sensor provided in each battery module assembly, and discharging air from the battery module assembly to the outside when a fire is detected. It is characterized by comprising a second step.
- the first step is characterized in that the step of supplying external air to each battery module assembly is performed together.
- the battery module assembly according to the present invention has the advantage that when a fire occurs, the pump creates a vacuum inside the cover member to extinguish the fire, thereby preventing secondary damage such as fire spread.
- the cover member of the battery module assembly according to the present invention is made of a material with elasticity and flexibility, not only can space utilization be improved and contribute to improving energy density, but an excellent sealing effect can be expected to ensure reliable fire extinguishment. There is an advantage to being able to do this.
- the cover member of the battery module assembly according to the present invention is provided with an opening and an opening and closing door, and therefore has a structure that allows air to circulate when the battery module is operating normally, which has the advantage of minimizing deterioration in cooling performance. there is.
- Figure 1 is a perspective view showing a battery storage system according to the prior art.
- Figure 2 is a perspective view showing the battery module according to the present invention stored in a cover member.
- Figure 3 is a perspective view of the cover member according to the present invention as seen from one direction.
- Figure 4 is a perspective view of the cover member shown in Figure 3 when viewed from the other side.
- Figure 5 is a perspective view of a battery pack according to the present invention.
- Figure 6 is a flowchart for explaining the operation method of the battery pack according to the present invention.
- Figure 2 is a perspective view showing the battery module according to the present invention stored in the cover member
- Figure 3 is a perspective view of the cover member according to the present invention viewed from one direction
- Figure 4 is a perspective view of the cover member shown in Figure 3 from the other side. This is a perspective view from .
- the battery module assembly includes a battery module 100, a fire detection sensor 200, a cover member 300, a pump 400, and a connection part 500. It is composed.
- the battery module 100 includes a plurality of battery cells stored inside a module case and connected in series or parallel through a bus bar or the like.
- the battery cell includes a cell assembly, a cell case storing the cell assembly, and a pair of leads.
- the cell assembly is a jelly-roll type cell assembly composed of a long sheet-shaped anode and cathode with a separator interposed between them and then wound, or a unit cell with a structure in which rectangular anodes and cathodes are stacked with a separator interposed between them.
- the cell assembly as described above is built into a cell case, and the cell case typically consists of a laminated sheet structure of an inner layer/metal layer/outer layer. Since the inner layer is in direct contact with the cell assembly, it must have insulation and electrolyte resistance, and in order to seal it from the outside, the sealing property, that is, the sealing area where the inner layers are heat bonded, must have excellent heat bonding strength.
- the material of this inner layer may be selected from, but is not limited to, polyolefin resins such as polypropylene, polyethylene, polyethylene acrylic acid, and polybutylene, polyurethane resins, and polyimide resins, which have excellent chemical resistance and good sealing properties. Polypropylene, which has excellent mechanical properties such as tensile strength, rigidity, surface hardness, and impact resistance, as well as chemical resistance, is most desirable.
- the metal layer in contact with the inner layer serves as a barrier layer that prevents moisture or various gases from penetrating into the battery from the outside, and a lightweight aluminum film with excellent formability can be used as a preferred material for this metal layer.
- an external layer is provided on the other side of the metal layer, and this external layer can be made of a heat-resistant polymer with excellent tensile strength, moisture permeation prevention, and air permeation prevention to secure heat resistance and chemical resistance while protecting the electrode assembly.
- a heat-resistant polymer with excellent tensile strength, moisture permeation prevention, and air permeation prevention to secure heat resistance and chemical resistance while protecting the electrode assembly.
- nylon or polyethylene terephthalate may be used, but is not limited thereto.
- the leads consisting of the positive and negative leads are electrically connected to the positive and negative tabs of the cell assembly and are then exposed to the outside of the case. Since the above battery cells correspond to generally known configurations, A more detailed description will be omitted.
- One or more fire detection sensors 200 are located on the outside or inside of the battery module 100, and can detect fire occurring in a battery cell inside the battery module 100, and can detect a signal measured through a wired or wireless method. is transmitted to an external control unit (not shown).
- the fire detection sensor 200 is shown in FIG. 2 as being located on the top of the battery module 100, this is only an example, and if a fire occurring in the battery module 100 can be detected, the fire detection sensor 200 is located on the top of the battery module 100. It is obvious that it can also be located in .
- the fire detection sensor 200 may be divided into several types depending on the operating method. For example, it may be a differential fire detector, a constant temperature fire detector, and a photoelectric smoke detector.
- a differential fire detector is a type of fire detector that detects a rise in temperature. If the rate of increase in the detected temperature per unit time is higher than the standard value, it detects a fire and transmits a fire signal. Depending on sensitivity and performance, they are classified into type 1, type 2, and type 3, and are also divided into spot type and distribution type depending on the physical range area that can be detected.
- constant temperature type fire detectors are fire detectors that operate when the temperature exceeds a certain level and are available in bimetal type and detection linear type.
- the bimetal type transmits by moving the contact point using the thermal deformation of the bimetal
- the sensing line type transmits by using two piano wires as a sensing line with plastic as the boundary. When a fire occurs, the plastic melts and the piano wires come into contact.
- a photoelectric smoke detector is a fire detector that operates by changing the amount of light received by the photoelectric element by causing smoke generated during a fire to flow into the detector and scattering infrared rays from a light emitting diode provided inside the detector. It is used in places where faster detection is required, such as indoor spaces such as warehouses where incomplete combustion is easy to occur, or places related to electricity.
- differential fire detector constant temperature fire detector
- photoelectric smoke detector any sensor that can detect a fire occurring in the battery module 100 is not limited thereto.
- the above-described fire detector receives power from a battery module.
- the cover member 300 includes a cover body 310, an extension part 320, and an opening/closing door 330.
- the cover body 310 is hollow on the inside so that it can surround the outside of the battery module 100, and preferably has flexibility so that air near the battery module 100 can be easily discharged.
- the cover body 310 is provided with one or more through holes 311, openings 312, and support portions 313.
- one or more through holes 311 are provided on one side of the cover body 310, and are intended to expose a connection part 500 such as a bus bar or wire that is electrically connected to the battery module 100 to the outside. .
- the opening 312 is located on the other side of the cover body 310, and corresponds to an entrance for storing or separating the battery module 100, and is also used as an outlet for air circulation when the battery module operates normally. do.
- the area of the opening 312 is not particularly limited, but it is sufficient as long as it allows the battery module 100 to enter and exit.
- the support portion 313 is located on the inner or outer surface of the cover body 310 along the edge of the opening 312, and has a flat plate shape made of a material such as metal or silicon that is heat resistant and has strength above a certain level and has little shape deformation. It is desirable.
- the support portion 313 is configured as described above, it is advantageous to fix a part of the opening/closing door 330, and furthermore, when discharging the air inside the cover body 310, the cover body 310 and the opening/closing door 330 ) can adhere closely, contributing to rapid fire suppression.
- one side of the extension part 320 extends outward from one side of the cover body 310 by a predetermined length, and the pump 400 is connected to the other side, and this extension part 320 is supplied into the cover body 310. Alternatively, it acts as a movement path for discharged air.
- cover body 310 and the extension portion 320 are preferably made of heat-resistant or flame-retardant material that can minimize damage even if a fire occurs in the battery module 100, and specifically, bromide flame retardant, silicone, and polyvinyl chloride. It may contain one or more of polyvinyl chloride, polystyrene, ABS resin, and polyethylene terephthalate, but is not limited to these materials as long as they can perform the same function.
- the opening/closing door 330 is provided on the other side of the cover body 310, that is, near the opening 312. More specifically, the opening/closing door 320 is larger than the area of the opening 312, and its upper edge is fixed to the outer surface of the support portion 313, while the remaining edges are not fixed.
- the opening 312 is closed, and conversely, when the pump 400 supplies external air to the inside of the cover member 300, the opening 312 is closed (
- the opening/closing door 330 is operated as a check valve type so that 312) can be opened.
- the opening/closing door 330 and the support part 313 can be fixed using known coupling means such as adhesives, tapes, and hinges.
- the opening/closing door 330 and the support part 313 can be fixed to each other, and then their fixation is performed.
- the method is not particularly limited.
- the opening/closing door 330 is preferably in the shape of a flat plate made of a material such as metal or silicon that is heat-resistant and has a certain level of strength and thus has little shape deformation.
- the pump 400 is connected to the other end of the extension part 320 to exhaust the air inside the cover body 310 to the outside to create a vacuum inside the cover body 310, or to cover the outside air. Heat generated in the battery module 100 is introduced into the body 310 and discharged to the outside.
- connection portion 500 for electrically connecting a device requiring power or a plurality of battery modules 100 may be composed of a bus bar or wire, with one side connected to the battery module 100 and the other side connected to the cover body 310. ) is exposed to the outside through the through hole 311.
- a signal transmission cable (not shown) may be additionally included in the connection unit 500.
- a sealing adhesive (G) is applied or attached to the portion where the through hole 311 and the connection portion 500 are in contact, and epoxy resin and silicone, which are heat-resistant materials, are preferably used. Any one of these is more preferable, but it is not limited to these materials as long as they can perform the same function.
- FIG. 5 is a perspective view of a battery pack according to the present invention.
- the present invention may be a battery pack including a plurality of battery module assemblies described in FIGS. 2 to 4 .
- the battery pack according to the present invention has a plurality of battery module assemblies arranged side by side in two rows, where the opening and closing doors 330 of each battery module assembly are positioned to face each other. You can.
- FIG. 5 shows the battery pack as consisting of six battery module assemblies, this is only an example, and it is obvious that the number of battery module assemblies can be changed depending on the amount of power required by the device.
- Figure 6 is a flowchart for explaining the operation method of the battery pack according to the present invention.
- the first step is to monitor whether a fire is detected using a fire detection sensor provided in each battery module assembly, and when a fire is detected, the air from the battery module assembly is discharged to the outside. It may be configured to include a second step.
- the first step of monitoring whether a fire is detected using a fire detection sensor provided in each battery module assembly the presence or absence of a fire in the battery module is confirmed and monitored through a fire detection sensor located outside the battery module.
- the pump provided in each battery module assembly sucks in external air and supplies it to the cover member in order to discharge the heat generated in the battery module to the outside. At this time, the opening/closing door can naturally remain open due to the air pressure supplied to the cover member, and thus the battery module is cooled.
- the second step of discharging the air from the battery module assembly to the outside is to extinguish the fire by blocking the oxygen necessary for the fire.
- a fire detection signal is transmitted to the control unit, and the control unit operates the pump of the corresponding battery module assembly to suck air from the cover member and discharge it to the outside.
- the opening/closing door is in close contact with the opening, blocking the inflow of external air, and extinguishing the fire by discharging the air inside the cover body.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
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- Business, Economics & Management (AREA)
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- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (12)
- 복수개의 배터리 셀이 수납된 배터리 모듈;상기 배터리 모듈 외측에 구비된 화재감지센서;상기 배터리 모듈과 화재감지센서를 수납하는 커버부재; 및상기 화재감지센서로부터 화재 신호를 수신할 시, 상기 커버부재 내측의 공기를 외부로 배출할 수 있도록 상기 커버부재와 연결되어 있는 펌프;를 포함하는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제1항에 있어서,상기 커버부재는 커버 몸체, 및 상기 커버 몸체와 상기 펌프를 연결하는 연장부를 포함하는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제2항에 있어서,상기 배터리 모듈 일측에는 소정 길이 연장된 버스바 또는 와이어로 구성된 연결부가 구비되고, 상기 커버 몸체에는 상기 연결부가 외부로 노출될 수 있도록 관통홀이 형성되어 있는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제3항에 있어서,상기 커버 몸체에는 상기 배터리 모듈의 출입을 위한 개방구가 형성되고, 상기 개방구에는 개폐도어가 구비되어 있는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제4항에 있어서,상기 개폐도어는 상기 개방구 보다 크고, 상기 커버 몸체 외측면에 일부분이 고정되는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제5항에 있어서,상기 개폐도어는 상기 펌프가 상기 커버부재 내측의 공기를 흡입할 시에는 개방구가 폐쇄되고, 상기 펌프가 외부 공기를 상기 커버부재 내측으로 공급할 시에는 개방구가 개방될 수 있는 체크 밸브 타입인 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제2항에 있어서,상기 커버 몸체와 상기 연장부는 내열성 또는 방염 소재로 이루어진 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제7항에 있어서,상기 커버 몸체와 상기 연장부는 유연성을 갖는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제2항에 있어서,상기 커버 몸체와 상기 연장부는 브롬계 난연제, 실리콘, 폴리염화비닐(Polyvinyl Chloride), 폴리스티렌(Polystyrene), ABS수지 및 폴리에틸렌 테레프탈레이트(Polyethylene Terephthalate) 중 어느 하나 이상을 포함하는 것을 특징으로 하는 배터리 모듈 어셈블리.
- 제1항 내지 제9항 중 어느 한 항에 기재된 배터리 모듈 어셈블리를 복수개 구비한 것을 특징으로 하는 배터리 팩.
- 제10항에 기재된 배터리 팩의 운전방법으로서,배터리 모듈 어셈블리 각각에 구비된 화재감지센서로 화재감지여부를 모니터링하는 제1 단계; 및화재가 감지되면 해당 배터리 모듈 어셈블리의 공기를 외부로 배출하는 제2 단계;를 포함하는 것을 특징으로 하는 배터리 팩의 운전방법.
- 제11항에 있어서,상기 제1 단계에서는 배터리 모듈 어셈블리 각각으로 외부 공기를 공급하는 단계가 함께 수행되는 것을 특징으로 하는 배터리 팩의 운전방법.
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CN202380012440.6A CN117597824A (zh) | 2022-06-10 | 2023-05-23 | 具有灭火功能的电池模块组件及包括该电池模块组件的电池组 |
EP23820019.0A EP4358256A1 (en) | 2022-06-10 | 2023-05-23 | Battery module assembly having fire extinguishing function, and battery pack comprising same |
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- 2023-05-23 WO PCT/KR2023/006956 patent/WO2023239083A1/ko active Application Filing
- 2023-05-23 CN CN202380012440.6A patent/CN117597824A/zh active Pending
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CN117597824A (zh) | 2024-02-23 |
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