WO2024143753A1 - 배터리 어셈블리 및 이를 포함하는 배터리 팩 및 차량 - Google Patents
배터리 어셈블리 및 이를 포함하는 배터리 팩 및 차량 Download PDFInfo
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- WO2024143753A1 WO2024143753A1 PCT/KR2023/012654 KR2023012654W WO2024143753A1 WO 2024143753 A1 WO2024143753 A1 WO 2024143753A1 KR 2023012654 W KR2023012654 W KR 2023012654W WO 2024143753 A1 WO2024143753 A1 WO 2024143753A1
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- Prior art keywords
- battery
- battery cells
- battery assembly
- paragraph
- critical temperature
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
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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
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/673—Containers for storing liquids; Delivery conduits therefor
- H01M50/682—Containers for storing liquids; Delivery conduits therefor accommodated in battery or cell casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- 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 assembly, a battery pack including the same, and a vehicle. More specifically, it relates to a battery assembly having a plurality of chargeable and dischargeable battery cells, and a battery pack and a vehicle including the battery assembly.
- secondary batteries refer to batteries that can be repeatedly charged and discharged, such as lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and nickel-zinc batteries.
- a battery cell which is the most basic secondary battery, can provide an output voltage of approximately 2.5V to 4.2V.
- the technical problem to be solved by the present invention is to provide a battery assembly that prevents sequential thermal runaway or ignition of battery cells included in a battery module or battery pack, and a battery pack and vehicle including the same.
- the thermal expansion material may include silicone foam or polyurethane foam.
- the fire extinguishing material may include at least one of a fire extinguishing agent in a liquid state, a gel state, and a powder state, and an inert gas.
- the stretchable receptor includes an injection port used to inject the thermally expandable material in a gel or liquid state into the receiving space; And it may include a sealing part that seals the injection port.
- the battery assembly further includes a bus bar fixed at a predetermined position and electrically connected to electrode leads of the two battery cells, wherein the electrode leads are connected to the electrode leads of the two battery cells, respectively. It extends toward the bus bar and is coupled to the bus bar, and at least one of the electrode leads may be configured such that a length extended toward the bus bar increases as the gap between the two battery cells expands.
- the at least one electrode lead has a folded portion provided by folding at least a portion of the electrode lead, and the folded portion gradually unfolds as the gap between the two battery cells expands, thereby folding the corresponding electrode lead. It can be configured to increase the extension length of the electrode lead.
- a thermal barrier disposed between battery cells expands at a temperature above the first critical temperature and expands between the battery cells, thereby blocking heat propagation between the battery cells, and as a result, the battery cells It can suppress or delay overheating or thermal runaway of battery cells and prevent sequential thermal runaway or ignition of battery cells.
- the thermal barrier includes a stretchable receptor that accommodates a thermal expansion material, it is possible to block heat propagation between battery cells using a thermal expansion material in a gel or liquid state.
- FIG. 1 is a diagram showing a battery assembly according to an embodiment of the present invention.
- FIG. 2 is an exploded view showing the battery assembly shown in FIG. 1.
- Figure 3 is an enlarged view showing portion A1 of Figure 1.
- FIG. 7 is a diagram showing the thermal expansion state of the thermal barrier shown in FIG. 6.
- Figure 10 is a diagram showing a battery pack according to an embodiment of the present invention.
- the thermal barrier 120 is melted at a temperature of a second critical temperature that is higher than the first critical temperature, and the thermal expansion material or extinguishing material in a gel or liquid state contained therein is melted. It can be configured to discharge.
- At least the coating of the elastic receptor 122 may be made of a material containing at least one of silicone, polyurethane, polydimethylsiloxane (PDMS), and acrylonitrile copolymer.
- the thermal expansion material 124 may include a gel-like or liquid-state material such as aerogel. Depending on the embodiment, the thermal expansion material 124 may include a phase change material that changes state by generating an endothermic reaction or an exothermic reaction depending on the temperature.
- the thermal expansion material 124 may include polyurethane foam (PU foam), silicone foam (Si foam), or a material containing both.
- the thermal expansion material 124 may be composed of a porous material.
- the thermal barrier 120 may further include a fire extinguishing material accommodated in the receiving space of the elastic receptor 122.
- the fire extinguishing material may include at least one of a liquid or powder fire extinguishing agent and an inert gas.
- FIG. 7 shows the thermal expansion state of the thermal barrier 120 shown in FIG. 6.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (15)
- 상호 적층된 복수의 배터리 셀; 및상기 복수의 배터리 셀 중 상호 인접한 2개의 배터리 셀 사이에 배치되는 서멀 배리어(thermal barrier)를 포함하고,상기 서멀 배리어는,신축성을 가진 피막으로 둘러싸인 수용 공간을 구비하는 신축성 수용체; 및상기 수용 공간에 수용되고, 제1 임계 온도 이상의 온도에서 팽창되어 상기 2개의 배터리 셀 사이의 간격을 확장시키는 열팽창 물질을 포함하는 배터리 어셈블리.
- 제1항에 있어서,상기 신축성 수용체는, 실리콘, 폴리우레탄, PDMS(polydimethylsiloxane) 및 아크릴로니트릴코폴리머(Acrylonitrile copolymer) 중 1 또는 2 이상을 포함하는 소재로 구성된 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 신축성 수용체는, 상기 제1 임계 온도보다 높은 제2 임계 온도 이상의 온도에서 용융되도록 구성된 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 열팽창 물질은, 겔(gel) 상태 또는 액체 상태의 물질을 포함하는 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 열팽창 물질은, 실리콘 폼 또는 폴리우레탄 폼을 포함하는 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 서멀 배리어는, 상기 신축성 수용체의 수용 공간에 수용되는 소화 물질을 더 포함하는 것을 특징으로 하는 배터리 어셈블리.
- 제6항에 있어서,상기 소화 물질은, 액체 상태, 겔 상태 및 분체 상태의 소화약제와 불활성 가스 중 적어도 하나를 포함하는 것을 특징으로 하는 배터리 어셈블리.
- 제6항에 있어서,상기 신축성 수용체는, 상기 제1 임계 온도 이상의 온도에서 상기 열팽창 물질에 의해 볼륨이 증가되고, 상기 제1 임계 온도보다 높은 제2 임계 온도 이상의 온도에서 용융되어 상기 수용 공간에 수용된 상기 소화 물질을 배출하도록 구성된 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 신축성 수용체는,상기 수용 공간으로 겔 상태 또는 액체 상태의 상기 열팽창 물질을 주입하는데 사용되는 주입구; 및상기 주입구를 실링하는 실링부를 포함하는 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,미리 정해진 위치에 고정되고, 상기 2개의 배터리 셀의 전극 리드들과 전기적으로 연결되는 버스바를 더 포함하고,상기 전극 리드들은, 상기 2개의 배터리 셀에서 각각 상기 버스바 측으로 연장되어 상기 버스바에 결합되고,상기 전극 리드들 중 적어도 하나의 전극 리드는, 상기 2개의 배터리 셀 사이의 간격이 확장됨에 따라 상기 버스바 측으로 연장된 길이가 증가되도록 구성된 것을 특징으로 하는 배터리 어셈블리.
- 제10항에 있어서,상기 적어도 하나의 전극 리드는, 해당 전극 리드의 적어도 일부분이 접철되어 마련된 접철부를 구비하고,상기 접철부는, 상기 2개의 배터리 셀 사이의 간격이 확장됨에 따라 점진적으로 펴지면서 해당 전극 리드의 연장 길이를 증가시키도록 구성된 것을 특징으로 하는 배터리 어셈블리.
- 제11항에 있어서,상기 전극 리드들을 클램핑하여 상호 밀착시키도록 구성된 클램핑 부재를 더 포함하고,상기 적어도 하나의 전극 리드는, 상기 클램핑 부재에 의해 다른 전극 리드와 밀착된 부분을 제외한 부분에, 상기 접철부를 구비하는 것을 특징으로 하는 배터리 어셈블리.
- 제1항에 있어서,상기 복수의 배터리 셀이 수용되는 내부 공간을 가진 케이스를 더 포함하고,상기 내부 공간에 수용된 상기 복수의 배터리 셀 중 최외곽에 위치한 배터리 셀과, 상기 내부 공간을 이루는 상기 케이스의 내부면 사이에는, 여유 공간이 마련된 것을 특징으로 하는 배터리 어셈블리.
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 어셈블리를 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항 내지 제13항 중 어느 한 항에 따른 배터리 어셈블리를 포함하는 것을 특징으로 하는 차량.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380018027.0A CN118575332A (zh) | 2022-12-28 | 2023-08-25 | 电池组件及包括该电池组件的电池组和车辆 |
| EP23912438.1A EP4550531A4 (en) | 2022-12-28 | 2023-08-25 | BATTERY ASSEMBLY, INCLUDING BATTERY BLOCK AND VEHICLE CONTAINING IT |
| JP2024560908A JP7817445B2 (ja) | 2022-12-28 | 2023-08-25 | バッテリーアセンブリ、該バッテリーアセンブリを含むバッテリーパック及び車両 |
| US18/834,211 US20250118833A1 (en) | 2022-12-28 | 2023-08-25 | Battery assembly, and battery pack and vehicle including same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220187200 | 2022-12-28 | ||
| KR10-2022-0187200 | 2022-12-28 | ||
| KR1020230043174A KR20240105173A (ko) | 2022-12-28 | 2023-03-31 | 배터리 어셈블리 및 이를 포함하는 배터리 팩 및 차량 |
| KR10-2023-0043174 | 2023-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024143753A1 true WO2024143753A1 (ko) | 2024-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2023/012654 Ceased WO2024143753A1 (ko) | 2022-12-28 | 2023-08-25 | 배터리 어셈블리 및 이를 포함하는 배터리 팩 및 차량 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250118833A1 (ko) |
| EP (1) | EP4550531A4 (ko) |
| JP (1) | JP7817445B2 (ko) |
| WO (1) | WO2024143753A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024119611A1 (de) | 2024-07-10 | 2026-01-15 | Audi Aktiengesellschaft | Zelltrennelement mit Brandschutzschicht sowie Batteriemodul |
| GB2642878A (en) * | 2024-07-24 | 2026-01-28 | Mercedes Benz Group Ag | A battery module for an electrical energy storage device of a motor vehicle, an electrical energy storage device and a method |
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| KR20230043174A (ko) | 2020-08-26 | 2023-03-30 | 미쓰이 가가쿠 가부시키가이샤 | 에스터 화합물 |
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| DE102019130435A1 (de) * | 2019-11-12 | 2021-05-12 | Bayerische Motoren Werke Aktiengesellschaft | Energiespeicher für ein Kraftfahrzeug, Kraftfahrzeug und Verwendung |
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| JP7608972B2 (ja) | 2021-06-07 | 2025-01-07 | トヨタ自動車株式会社 | 電池モジュール |
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2023
- 2023-08-25 EP EP23912438.1A patent/EP4550531A4/en active Pending
- 2023-08-25 US US18/834,211 patent/US20250118833A1/en active Pending
- 2023-08-25 JP JP2024560908A patent/JP7817445B2/ja active Active
- 2023-08-25 WO PCT/KR2023/012654 patent/WO2024143753A1/ko not_active Ceased
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102024119611A1 (de) | 2024-07-10 | 2026-01-15 | Audi Aktiengesellschaft | Zelltrennelement mit Brandschutzschicht sowie Batteriemodul |
| GB2642878A (en) * | 2024-07-24 | 2026-01-28 | Mercedes Benz Group Ag | A battery module for an electrical energy storage device of a motor vehicle, an electrical energy storage device and a method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025512548A (ja) | 2025-04-17 |
| EP4550531A4 (en) | 2026-01-21 |
| US20250118833A1 (en) | 2025-04-10 |
| JP7817445B2 (ja) | 2026-02-18 |
| EP4550531A1 (en) | 2025-05-07 |
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