WO2025123767A1 - 一种泄压支架组件及电池模组 - Google Patents
一种泄压支架组件及电池模组 Download PDFInfo
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- WO2025123767A1 WO2025123767A1 PCT/CN2024/113982 CN2024113982W WO2025123767A1 WO 2025123767 A1 WO2025123767 A1 WO 2025123767A1 CN 2024113982 W CN2024113982 W CN 2024113982W WO 2025123767 A1 WO2025123767 A1 WO 2025123767A1
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- Prior art keywords
- pressure relief
- protective cover
- port
- bracket assembly
- space
- Prior art date
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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
- 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
- H01M50/209—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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
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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
- H01M50/271—Lids or covers for the racks or secondary casings
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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
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
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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
- 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
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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
- H01M50/50—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
- 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 application relates to the field of battery technology, and in particular to a pressure relief bracket assembly and a battery module.
- Battery modules With the rapid development of new energy technologies, battery modules have been widely used in various new energy vehicles and energy storage power stations. Battery modules usually include multiple battery cells, which are electrically connected through a bus installed on a CCS bracket. During the use of the battery module, if short circuits, overcharges, etc. occur, a large amount of heat will accumulate inside the battery cells, resulting in thermal runaway. Thermal runaway will cause the internal pressure of the battery cells to be too high, causing fire or even explosion.
- the present application provides a battery module, which includes a plurality of battery cells and a pressure relief bracket assembly.
- a bus is provided in the receiving groove, and the bus is electrically connected to the plurality of battery cells respectively.
- FIG1 is a schematic diagram of a three-dimensional structure of a battery module embodiment provided by the present application.
- FIG2 is a schematic diagram of the exploded structure of the battery module in FIG1 ;
- a accommodating groove 102 and a pressure relief port 103 are formed on one side of the pressure relief bracket 11 facing the first direction A.
- the accommodating groove 102 is used to install a bus 13, and the bus 13 is electrically connected to multiple battery cells 10a respectively. It can be understood that the number of accommodating grooves 102 and buses 13 can be set according to actual needs, and there is no limitation on this.
- the shell 10d includes an upper shell 113 and a lower shell 114, the upper shell 113 forms a first sub-space 1091, and the lower shell 114 forms a second sub-space 1092.
- the first sub-space 1091 and the second sub-space 1092 together form an accommodating space 109, the air vent 110 is formed in the upper shell 113 and communicates with the first sub-space 1091, and the pressure relief bracket assembly 10b is arranged in the second sub-space 1092.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
一种泄压支架组件(10b)及电池模组(10),泄压支架组件(10b)包括:泄压支架(11),泄压支架(11)朝向第一方向的一侧形成有容置槽(102)及泄压口(103),容置槽(102)用于安装汇流排(13);防护罩(12),形成有物质通道(104),防护罩(12)罩设于泄压口(103),以使得物质通道(104)与泄压口(103)连通且防护罩(12)隔离泄压口(103)及容置槽(102),从泄压口(103)喷出的热物质被排入至物质通道(104)内。
Description
本申请要求在2023年12月13日提交中国专利局、申请号为2023234043866的中国专利申请的优先权,以上申请的全部内容通过引用结合在本申请中。
本申请涉及电池技术领域,具体是涉及一种泄压支架组件及电池模组。
随着新能源技术的发展越来越快,电池模组已经被广泛的应用于各种新能源汽车、储能电站中,电池模组通常包括多个电池单体,多个电池单体通过安装在CCS支架上的汇流排电连接,电池模组在使用过程中,如果出现短路、过冲等现象,会使得电池单体内部出现大量的热量积聚,从而出现热失控现象,热失控现象会导致电池单体的内部压力过高,造成起火、甚至爆炸的情况。
相关技术一般采用在CCS支架上设置泄压口的方式,释放热失控现象产生的压力,但是这种方式,会导致从泄压口喷出的热物质,比如电解液,散落在汇流排上,从而导致电池模组热失控蔓延,产生爆炸,带来安全隐患。
第一方面,本申请提供一种泄压支架组件,泄压支架组件包括:泄压支架,泄压支架朝向第一方向的一侧形成有容置槽及泄压口,容置槽用于安装汇流排;防护罩,形成有物质通道,防护罩罩设于泄压口,以使得物质通道与泄压口连通且防护罩隔离泄压口及容置槽。
第二方面,本申请提供一种电池模组,电池模组包括多个电池单体及泄压支架组件,容置槽内设有汇流排,汇流排分别与多个电池单体电连接。
本申请提供的一种泄压支架组件及电池模组的有益效果是:泄压支架组件包括:泄压支架,泄压支架朝向第一方向的一侧形成有容置槽及泄压口,容置槽用于安装汇流排;防护罩,形成有物质通道,防护罩罩设于泄压口,以使得物质通道与泄压口连通且防护罩隔离泄压口及容置槽,从而使得当电池单体发生热失控现象时,通过泄压口释放热失控现象产生的压力,同时,从泄压口喷出的热物质被排入至物质通道内,且由于防护罩对泄压口与容置槽的隔离作用,防止从泄压口喷出的热物质散落在汇流排上,从而避免电池模组热失控蔓延、产生爆炸,降低安全隐患。
图1是本申请提供的电池模组实施方式的立体结构示意图;
图2是图1中电池模组的分解结构示意图;
图3是图1中电池模组在F-F向上的截面示意图;
图4是图2中泄压支架组件的立体结构示意图;
图5是图4中泄压支架组件的分解结构示意图;
图6是图3中泄压支架组件的截面示意图;
图7是图3中壳体的截面示意图。
请一并参阅图1及图2,图1是本申请提供的电池模组10实施方式的立体结构示意图,图2是图1中电池模组10的分解结构示意图,本实施方式中的电池模组10包括多个电池单体10a及泄压支架组件10b。
请一并参阅图3、图4、图5及图6,图3是图1中电池模组10在F-F向上的截面示意图,图4是图2中泄压支架组件10b的立体结构示意图,图5是图4中泄压支架组件10b的分解结构示意图,图6是图3中泄压支架组件10b的截面示意图,泄压支架组件10b包括泄压支架11及防护罩12。
其中,泄压支架11朝向第一方向A的一侧形成有容置槽102及泄压口103,容置槽102用于安装汇流排13,汇流排13分别与多个电池单体10a电连接,可以理解的,容置槽102及汇流排13的数量可以根据实际所需进行设置,对此不做限定。
防护罩12形成有物质通道104,防护罩12罩设于泄压口103,以使得物质通道104与泄压口103连通且防护罩12隔离泄压口103及容置槽102,从而使得当电池单体10a发生热失控现象时,通过泄压口103释放热失控现象产生的压力,同时,从泄压口103喷出的热物质被排入至物质通道104内,且由于防护罩12对泄压口103与容置槽102的隔离作用,防止从泄压口103喷出的热物质散落在汇流排13上,从而避免电池模组10热失控蔓延、产生爆炸,降低安全隐患。
其中,物质通道104沿第二方向B延伸设置,第二方向B与第一方向A呈交叉设置,在本实施方式中,第二方向B与第一方向A相互垂直,防护罩12在第二方向B上的端部还形成有与物质通道104连通的物质释放口105,从而使得从泄压口103排入至物质通道104的热物质通过物质释放口105排出,避免热物质堆积在物质通道104内,物质释放口105成于防护罩12朝向第一方向A的一侧。
防护罩12还形成有与物质通道104连通的排气口106,排气口106形成于防护罩12上与物质释放口105相对的一端,以使得当电池单体10a发生热失控现象时,热失控现象产生的高温气体从泄压口103排入至物质通道104,然后通过排气口106排出,也即本实施方式中的防护罩12不仅可以通过一端设置的物质释放口105排出热物质,还能够通过另一端设置的排气口106排出高温气体,在实际应用中,电池模组10呈如图3所示的放置状态,在这种放置状态下,物质释放口105位于防护罩12的底部,排气口106位于防护罩12的顶部,当电池单体10a发生热失控现象时,从泄压口103喷出至物质通道104的热物质,比如电解液,由于重力作用,会沿物质通道104向底部的物质释放口105流动,而从泄压口103喷出至物质通道104高温气体,则会沿物质通道104向顶部的排气口106流动。
本实施方式中的泄压支架11还形成有线束通道107,防护罩12还形成有线束通道107连通的线束缺口108,以使得与汇流排13连接的采集线束依次通过线束缺口108及线束通道107引出。
泄压支架11包括支架主体111及泄压主体112,支架主体111形成有容置槽102,泄压主体112包括泄压部1121及分隔部1122,泄压部1121与支架主体11连接且形成有泄压口103,分隔部1122与泄压部1121连接并与支架主体111间隔设置以形成线束通道107,防护罩12罩设于泄压部1121及分隔部1122,以使得线束缺口108与线束通道107连通,通过这种设置方式,一方面实现采集线束依次通过线束缺口108及线束通道107引出,另一方面通过分隔部1122将采集线束与物质通道104间隔,避免热物质对采集线束造成损坏的情况。
请继续参阅图2及图3,本实施方式中的电池模组10还包括电池管理单元10c,电池管理单元10c与汇流排13电连接,在本实施方式中,也即电池管理单元10c通过上述的采集线束与汇流排13电连接。
其中,电池管理单元10c设置于防护罩12远离泄压支架11的一侧,通过这种设置方式,防护罩12将电池管理单元10c与泄压口103隔离,防止从泄压口103喷出的热物质散落在电池管理单元10c上,从而避免电池模组10热失控蔓延、产生爆炸,降低安全隐患。
电池管理单元10c设置于防护罩12朝向第一方向A的一侧,且通过上述描述的,物质释放口105设置于防护罩12在第二方向B上的端部,使得热物质从泄压口103喷出的过程中,被防护罩12阻挡,而不会直接通过物质释放口105喷出在电池管理单元10c上。
请再次参阅图2、图3及图7,图7是图3中壳体10d的截面示意图,本实施方式中的电池模组10还包括壳体10d,壳体10d形成有容置空间109及与容置空间109连通的透气孔110,泄压支架组件10b设置于容置空间109内,透气孔110安装有防爆阀115,以使得当电池单体10a发生热失控现象时,热失控现象产生的高温气体通过排气口106排入至容置空间109内,然后在防爆阀115打开时排出。
其中,壳体10d包括上壳113及下壳114,上壳113形成有第一子空间1091,下壳114形成有第二子空间1092,第一子空间1091与第二子空间1092共同形成容置空间109,透气孔110形成于上壳113并与第一子空间1091连通,泄压支架组件10b设置于第二子空间1092内。
Claims (10)
- 一种泄压支架组件,包括:泄压支架,所述泄压支架朝向第一方向的一侧形成有容置槽及泄压口,所述容置槽用于安装汇流排;防护罩,形成有物质通道,所述防护罩罩设于所述泄压口,以使得所述物质通道与所述泄压口连通且所述防护罩隔离所述泄压口及所述容置槽。
- 根据权利要求1所述的泄压支架组件,其中,所述物质通道沿第二方向延伸设置,所述第二方向与所述第一方向呈交叉设置,所述防护罩在所述第二方向上的端部形成有与所述物质通道连通的物质释放口。
- 根据权利要求2所述的泄压支架组件,其中,所述物质释放口形成于所述防护罩朝向所述第一方向的一侧。
- 根据权利要求2所述的泄压支架组件,其中,所述防护罩还形成有与所述物质通道连通的排气口,所述排气口形成于所述防护罩上与所述物质释放口相对的一端。
- 根据权利要求1所述的泄压支架组件,其中,所述泄压支架还形成有线束通道,所述防护罩还形成有所述线束通道连通的线束缺口。
- 根据权利要求5所述的泄压支架组件,其中,所述泄压支架包括支架主体及泄压主体,所述支架主体形成有所述电池容纳空间及所述容置槽,所述泄压主体包括泄压部及分隔部,所述泄压部与所述支架主体连接且形成有所述泄压口,所述分隔部与所述泄压部连接并与所述支架主体间隔设置以形成所述线束通道,所述防护罩罩设于所述泄压部及所述分隔部,以使得所述线束缺口与所述线束通道连通。
- 一种电池模组,包括多个电池单体及权利要求1~6中任一项所述的泄压支架组件,所述容置槽内设有所述汇流排,所述汇流排分别与多个所述电池单体电连接。
- 根据权利要求7所述的电池模组,还包括电池管理单元,所述电池管理单元与所述汇流排电连接且设置于所述防护罩远离所述泄压支架的一侧。
- 根据权利要求7所述的电池模组,还包括壳体,所述壳体形成有容置空间及与所述容置空间连通的透气孔,所述泄压支架组件设置于所述容置空间内,所述透气孔安装有防爆阀。
- 根据权利要求9所述的电池模组,其中,所述壳体包括上壳及下壳,所述上壳形成有第一子空间,所述下壳形成有第二子空间,所述第一子空间与所述第二子空间共同形成所述容置空间,所述透气孔形成于所述上壳并与所述第一子空间连通,所述泄压支架组件设置于所述第二子空间内。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323404386.6U CN222507893U (zh) | 2023-12-13 | 2023-12-13 | 一种泄压支架组件及电池模组 |
| CN202323404386.6 | 2023-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025123767A1 true WO2025123767A1 (zh) | 2025-06-19 |
Family
ID=93150236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2024/113982 Pending WO2025123767A1 (zh) | 2023-12-13 | 2024-08-22 | 一种泄压支架组件及电池模组 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250202036A1 (zh) |
| EP (1) | EP4571971A3 (zh) |
| CN (1) | CN222507893U (zh) |
| WO (1) | WO2025123767A1 (zh) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20250202036A1 (en) | 2025-06-19 |
| CN222507893U (zh) | 2025-02-18 |
| EP4571971A2 (en) | 2025-06-18 |
| EP4571971A3 (en) | 2025-07-23 |
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