WO2023204523A1 - 배터리 팩 - Google Patents
배터리 팩 Download PDFInfo
- Publication number
- WO2023204523A1 WO2023204523A1 PCT/KR2023/004989 KR2023004989W WO2023204523A1 WO 2023204523 A1 WO2023204523 A1 WO 2023204523A1 KR 2023004989 W KR2023004989 W KR 2023004989W WO 2023204523 A1 WO2023204523 A1 WO 2023204523A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- heat absorber
- batteries
- heat
- battery
- 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
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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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/143—Fireproof; Explosion-proof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—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
- H01M50/342—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
- H01M50/383—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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack that can suppress the heat propagation phenomenon in which other secondary batteries in the surrounding area continuously overheat when thermal runaway occurs.
- secondary batteries can be recharged and have been extensively researched and developed in recent years due to their small size and high capacity.
- Patent Document 001 Korean Patent Publication No. 10-2021-0077410 (published on June 25, 2021)
- the purpose of the present invention is to provide a battery pack that can effectively suppress and prevent heat propagation to surrounding secondary batteries due to thermal runaway generated in secondary batteries.
- the present invention relates to a battery pack.
- the battery pack includes: a pack case; a plurality of batteries accommodated in the pack case; and a first heat absorber disposed between the plurality of batteries; and a second heat absorber disposed on both sides of the plurality of batteries, wherein the first heat absorber and the second heat absorber include an absorber impregnated with a liquid vaporized by heat generated from the battery; and an exterior material accommodated in a state in which the absorbent absorbs the liquid.
- the first heat absorber may be disposed between the plurality of batteries.
- the exterior material of the first and second heat absorbers is a pouch
- the pouch may be provided with a weak portion that is preferentially broken when the liquid impregnated in the absorber is vaporized and the internal pressure increases.
- the absorbent material may include a highly absorbent matrix, for example, superabsorbent polymer (SAP) or superabsorbent fiber (SAF).
- SAP superabsorbent polymer
- SAF superabsorbent fiber
- the liquid is water mixed with additives
- the additive may be a substance that lowers the surface tension of water or a fire extinguishing agent.
- the battery may be equipped with a venting device, and the vulnerable portion provided in the pouch of the first heat absorber may be disposed at a position corresponding to the venting device.
- the second heat absorber may be disposed on the inner surface of the side case of the pack case.
- a plurality of second heat absorbers may be provided, and the plurality of second heat absorbers may be uniformly arranged in rows and columns on the inner surface of the side case.
- the plurality of batteries are accommodated in the pack case to form a plurality of rows
- side plates are disposed between the rows of the batteries
- a plurality of second heat absorbers are provided to store the batteries on the inner surface of the side plate. They can be placed evenly in rows and columns so as to contact the sides.
- the inner surface of the side case or the inner surface of the side plate has a lattice-shaped rib structure
- the second heat absorber is disposed in a concave surface formed in rows and columns by the rib structure, and the second heat absorber The heat absorber may not protrude beyond the concave surface.
- the plurality of batteries are accommodated in the pack case to form at least one row, a venting device is provided on the upper surface of each battery, and the plurality of batteries are integrally connected to the venting device of the batteries forming the row. Equipped with a venting guide that combines.
- the exterior material of the first heat absorber is a pouch
- the pouch of the first heat absorber is provided with a weak portion that is preferentially broken when the liquid impregnated in the absorber is vaporized and the internal pressure increases.
- the first heat absorber The vulnerable portion of is located in a direction toward the venting guide, and the venting guide includes: a gas outlet communicating with the venting device; and a steam outlet communicating with the weak portion of the first heat absorber.
- the first heat absorber may be disposed between the plurality of batteries, and the vapor outlet may be provided between the gas outlets.
- the occurrence of thermal runaway is suppressed in advance by quickly absorbing and dispersing heat in an environment with a high temperature rise, such as normal rapid charging, and performance and lifespan are maintained without a high temperature rise. It can be maintained.
- the liquid impregnated in the absorbent material in the heat-absorbing pouch absorbs heat and is vaporized, and when the vaporized gas rises above a certain pressure, the heat-absorbing pouch is ruptured and ejected, causing overheating.
- cooling ignition sources such as combustible gases and heating electrodes emitted from battery cells and suppressing flames, the phenomenon of heat propagation to surrounding secondary batteries and the risk of fire can be greatly reduced.
- the liquid impregnated in the absorbent material in the heat absorber absorbs heat and is vaporized, and when the vaporized gas rises above a certain pressure, the heat absorber is broken and ejected.
- cooling ignition sources such as combustible gases and heating electrodes emitted from overheated batteries and suppressing flames.
- a pouch manufactured using a flexible laminate sheet may be used as the exterior material 340.
- the pouch which is the exterior material 340, is provided with a weak portion 342 that is preferentially broken when the liquid impregnated in the absorbent material 330 is vaporized and the internal pressure increases.
- the first heat absorber 310 may be disposed between the plurality of batteries 200 . Additionally, a first heat absorber 310 may be provided between the side wall of the pack case 100 and the battery 200. In this way, since the first heat absorber 310 is provided on the front and rear surfaces of all batteries 200, uniform insulation, cooling, and fire extinguishing effects occur inside the battery pack 10.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
Claims (16)
- 팩 케이스;상기 팩 케이스 내에 수용된 복수 개의 배터리;상기 복수 개의 배터리 사이에 배치된 제1 흡열체; 및상기 복수 개의 배터리 양 측면에 배치된 제2 흡열체를 포함하고,상기 제1 흡열체 및 제2 흡열체는,상기 배터리에서 발생하는 열에 의해 기화되는 액체가 함침된 흡수재; 및상기 흡수재가 상기 액체를 흡수한 상태로 수용되는 외장재를 포함하는 배터리 팩.
- 제1항에 있어서,상기 제1 흡열체는,상기 복수 개의 배터리 사이마다 배치되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 제1 흡열체 및 제2 흡열체의 외장재는 파우치이고,상기 파우치는 상기 흡수재에 함침된 액체가 기화되어 내압이 증가하면 우선적으로 파단되는 취약부가 구비되는 것을 특징으로 하는 배터리 팩.
- 제3항에 있어서,상기 흡수재는,고흡수성 매트릭스인 것을 특징으로 하는 배터리 팩.
- 제4항에 있어서,상기 고흡수성 매트릭스는 고흡수성 폴리머(SAP) 또는 고흡수성 섬유(SAF)를 포함하는 것을 특징으로 하는 배터리 팩.
- 제5항에 있어서,상기 액체는 첨가제가 혼합된 물이고,상기 첨가제는 물의 표면장력을 낮추는 물질이거나, 또는 소화약제인 것을 특징으로 하는 배터리 팩.
- 제3항에 있어서,상기 배터리에는 벤팅장치가 구비되고,상기 제1 흡열체의 파우치에 구비되는 취약부는 상기 벤팅장치에 대응하는 위치에 배치되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 제2 흡열체는,상기 팩 케이스의 사이드 케이스의 내면에 배치되는 것을 특징으로 하는 배터리 팩.
- 제8항에 있어서,상기 제2 흡열체는 복수 개가 구비되고,상기 복수의 제2 흡열체는 상기 사이드 케이스의 내면에 행과 열을 이루면서 균일하게 배치되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 복수의 배터리는 복수의 열을 이루도록 상기 팩 케이스 내에 수용되고,상기 배터리의 열 사이에는 사이드 플레이트가 배치되며,상기 제2 흡열체는 복수 개가 구비되어 상기 사이드 플레이트의 내면에 상기 배터리의 측면에 접촉하도록 행과 열을 이루면서 균일하게 배치되는 것을 특징으로 하는 배터리 팩.
- 제9항 또는 제10항에 있어서,상기 사이드 케이스의 내면, 또는 상기 사이드 플레이트의 내면은 격자 형태의 리브 구조를 구비하고,상기 제2 흡열체는 상기 리브 구조에 의해 행과 열을 이루도록 형성된 오목면 안에 배치되며,상기 제2 흡열체는 상기 오목면 밖으로 돌출되지 않는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 복수의 배터리는 적어도 하나 이상의 열을 이루도록 상기 팩 케이스 내에 수용되고,각 배터리의 상면에는 벤팅장치가 구비되며,상기 열을 이루는 배터리의 벤팅장치에 대해 일체로 결합하는 벤팅 가이드를 구비하는 것을 특징으로 하는 배터리 팩.
- 제12항에 있어서,상기 벤팅 가이드는,상기 배터리의 상면에 배치된 전극단자에 대해 상기 벤팅장치를 구획하는 것을 특징으로 하는 배터리 팩.
- 제13항에 있어서,상기 제1 흡열체의 외장재는 파우치이고,상기 제1 흡열체의 파우치는 상기 흡수재에 함침된 액체가 기화되어 내압이 증가하면 우선적으로 파단되는 취약부가 구비되는 것을 특징으로 하는 배터리 팩.
- 제14항에 있어서,상기 제1 흡열체의 취약부는 상기 벤팅 가이드를 향하는 방향으로 위치하고,상기 벤팅 가이드는,상기 벤팅장치와 연통하는 가스 배출구; 및상기 제1 흡열체의 취약부와 연통하는 증기 배출구를 구비하는 것을 특징으로 하는 배터리 팩.
- 제15항에 있어서,상기 제1 흡열체는 상기 복수 개의 배터리 사이마다 배치되고,상기 증기 배출구는 상기 가스 배출구 사이마다 구비되는 것을 특징으로 하는 배터리 팩.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23792100.2A EP4318739A4 (en) | 2022-04-18 | 2023-04-13 | BATTERY PACK |
| US18/290,046 US20240258614A1 (en) | 2022-04-18 | 2023-04-13 | Battery pack |
| CN202380011646.7A CN117296188A (zh) | 2022-04-18 | 2023-04-13 | 电池组 |
| JP2023568719A JP7655637B2 (ja) | 2022-04-18 | 2023-04-13 | バッテリーパック |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220047695 | 2022-04-18 | ||
| KR10-2022-0047695 | 2022-04-18 | ||
| KR10-2022-0183986 | 2022-12-26 | ||
| KR1020220183986A KR20230148731A (ko) | 2022-04-18 | 2022-12-26 | 배터리 팩 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023204523A1 true WO2023204523A1 (ko) | 2023-10-26 |
Family
ID=88420345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/004989 Ceased WO2023204523A1 (ko) | 2022-04-18 | 2023-04-13 | 배터리 팩 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240258614A1 (ko) |
| EP (1) | EP4318739A4 (ko) |
| JP (1) | JP7655637B2 (ko) |
| WO (1) | WO2023204523A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025158797A1 (ja) * | 2024-01-24 | 2025-07-31 | 株式会社村田製作所 | 電池パックおよびその製造方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4900534B2 (ja) * | 2009-02-24 | 2012-03-21 | パナソニック株式会社 | 電池モジュールとそれを用いた電池モジュール集合体 |
| CN107534112B (zh) * | 2015-07-09 | 2020-10-02 | 日本汽车能源株式会社 | 电池组件 |
| JP2020064755A (ja) * | 2018-10-17 | 2020-04-23 | 株式会社日立製作所 | 電池パック |
| JP7155954B2 (ja) * | 2018-11-30 | 2022-10-19 | トヨタ自動車株式会社 | 組電池 |
| US20200403201A1 (en) * | 2019-06-21 | 2020-12-24 | All Cell Technologies, Llc | Apparatus and method for thermal runaway propagation prevention |
| CN112310533B (zh) * | 2019-11-15 | 2022-03-01 | 宁德时代新能源科技股份有限公司 | 电池箱及装置 |
| KR20250073538A (ko) * | 2020-06-03 | 2025-05-27 | 위스크 에어로 엘엘씨 | 선택적 상변화 특징을 갖는 배터리 |
| KR20230148890A (ko) * | 2022-04-18 | 2023-10-26 | 주식회사 엘지에너지솔루션 | 각형 이차전지 |
| KR20240052339A (ko) * | 2022-10-14 | 2024-04-23 | 주식회사 엘지에너지솔루션 | 모듈 내부의 온도 안정성이 개선된 이차전지 모듈 |
| KR20240072645A (ko) * | 2022-11-17 | 2024-05-24 | 주식회사 엘지에너지솔루션 | 모듈 내부의 온도 안정성이 개선된 이차전지 모듈 |
| KR20240084197A (ko) * | 2022-12-06 | 2024-06-13 | 주식회사 엘지에너지솔루션 | 커버 일체형 벤팅덕트를 구비하는 배터리 팩 |
-
2023
- 2023-04-13 EP EP23792100.2A patent/EP4318739A4/en active Pending
- 2023-04-13 US US18/290,046 patent/US20240258614A1/en active Pending
- 2023-04-13 JP JP2023568719A patent/JP7655637B2/ja active Active
- 2023-04-13 WO PCT/KR2023/004989 patent/WO2023204523A1/ko not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090038382A (ko) * | 2007-10-15 | 2009-04-20 | 소니 가부시끼 가이샤 | 전지 팩 및 그의 제조 방법 |
| KR101084224B1 (ko) * | 2010-06-10 | 2011-11-17 | 에스비리모티브 주식회사 | 배터리 팩 |
| JP2013157112A (ja) * | 2012-01-27 | 2013-08-15 | Toshiba Corp | 組電池 |
| KR20180031136A (ko) * | 2016-09-19 | 2018-03-28 | 삼성에스디아이 주식회사 | 이차 전지 |
| KR20190082974A (ko) * | 2016-11-29 | 2019-07-10 | 베이징 키 파워 테크놀로지스 컴퍼니 리미티드 | 배터리 모듈의 흡열 및 단열 구조 |
| KR20210077410A (ko) | 2019-12-17 | 2021-06-25 | 삼성에스디아이 주식회사 | 배터리 모듈 |
Non-Patent Citations (1)
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| See also references of EP4318739A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025158797A1 (ja) * | 2024-01-24 | 2025-07-31 | 株式会社村田製作所 | 電池パックおよびその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7655637B2 (ja) | 2025-04-02 |
| EP4318739A4 (en) | 2025-05-21 |
| EP4318739A1 (en) | 2024-02-07 |
| JP2024521647A (ja) | 2024-06-04 |
| US20240258614A1 (en) | 2024-08-01 |
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