CN114552143A - 电池模块 - Google Patents

电池模块 Download PDF

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CN114552143A
CN114552143A CN202111197053.3A CN202111197053A CN114552143A CN 114552143 A CN114552143 A CN 114552143A CN 202111197053 A CN202111197053 A CN 202111197053A CN 114552143 A CN114552143 A CN 114552143A
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bus bar
voltage detection
detection terminal
battery module
secondary batteries
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丰田拓也
岛田匡起
伊藤秀太
来间雄介
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Toyota Motor Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507Interconnectors 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249Mountings; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/543Terminals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/569Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/571Methods or arrangements for affording protection against corrosion; Selection of materials therefor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本公开涉及电池模块。电池模块具备:多个二次电池,被配置成在一个方向上排列;母线,将多个二次电池中的在一个方向上相互邻接的二次电池彼此电连接;以及电压检测端子,与母线连接。二次电池具有一对外部端子。母线具有:连接部,与外部端子连接;以及隆起部,从连接部向上方隆起。电压检测端子与隆起部连接。

Description

电池模块
技术领域
本公开涉及电池模块。
背景技术
例如,在日本特开2019-207824中,公开了一种具备多个蓄电元件、将相互邻接的蓄电元件的电极端子彼此电连接的母线以及与母线连接的蓄电模块的电压探测端子。母线具有平坦地形成的第1区域、平坦地形成的第2区域以及形成于第1区域及第2区域之间的弯曲部。弯曲部向上方(远离电极端子的方向)弯曲。弯曲部的剖面形状形成向下方开口的U字状。
发明内容
在如日本特开2019-207824记载的电池模块中,在母线和电压探测端子由相互不同的金属构成的情况下,有可能由于由结露导致的水分附着在母线和电压探测端子的边界部而发生电蚀。
本公开的目的在于提供一种能够抑制在母线和电压检测端子的边界部发生电蚀的电池模块。
根据本公开的一个方面的电池模块具备:多个二次电池,被配置成在一个方向上排列;母线,将所述多个二次电池中的在所述一个方向上相互邻接的所述二次电池彼此电连接;以及电压检测端子,由与所述母线不同的金属构成,与所述母线连接,所述二次电池具有一对外部端子,所述母线具有:连接部,与所述外部端子连接;以及隆起部,从所述连接部向上方隆起,所述电压检测端子与所述隆起部连接。
根据本公开,能够提供能够抑制在母线和电压检测端子的边界部发生电蚀的电池模块。
附图说明
下面将参照附图来描述本发明的示例性实施例的特征、优点以及技术和工业意义,其中相同的附图标记表示相同的元素,并且其中:
图1是概略性地示出本公开的一个实施方式的电池模块的母线的附近的立体图。
图2是示出母线和树脂罩的关系的俯视图。
具体实施方式
参照附图来说明本公开的实施方式。此外,在以下参照的附图中,对相同或者与其相当的部件附加相同的编号。
图1是概略性地示出本公开的一个实施方式的电池模块的母线的附近的立体图。图2是示出母线和树脂罩的关系的俯视图。该电池模块1例如搭载于车辆。
如图1以及图2所示,电池模块1具备多个二次电池10、多个树脂框20、多个母线30、电压检测端子40以及树脂罩50。
多个二次电池10被配置成在一个方向上排列。作为二次电池10,例如可以举出锂离子电池。各二次电池10具有壳体12和一对外部端子14。
壳体12被形成为矩形形状。在壳体12的上表面中的中央部,设置有安全阀(图示省略)。
一对外部端子14从壳体12的上表面朝向上方突出。一对外部端子14的一方是正极端子,另一方是负极端子。正极端子设置于宽度方向(与一个方向以及上下方向这双方正交的方向)上的安全阀的一方侧。负极端子设置于宽度方向上的安全阀的另一方侧。
树脂框20被配置成在一个方向上与二次电池10邻接。各树脂框20具有隔开部22和管道(duct)元素24。
隔开部22由绝缘材料(树脂)构成。隔开部22将在一个方向上相互邻接的二次电池10之间隔开。
如图1所示,管道元素24与隔开部22上部连接。管道元素24具有覆盖各二次电池10的安全阀的形状。各管道元素24与在一个方向上邻接的管道元素24连结。多个管道元素24通过相互连结而构成排烟管道。排烟管道设置于多个二次电池10上,形成用于排出从二次电池10的安全阀产生的气体的排烟路径。
各母线30将在一个方向上相互邻接的外部端子14彼此电连接。在本实施方式中,各母线30将一个二次电池10的正极端子和与一个二次电池10邻接的二次电池10的负极端子电连接。即,多个二次电池10通过各母线30串联连接。母线30例如由铝构成。
各母线30具有一对连接部32和隆起部34。
连接部32是与外部端子14连接的部位。连接部32平坦地形成。连接部32在焊接部W(参照图1)处被焊接到外部端子14。连接部32具有大于外部端子14的外形。
隆起部34从连接部32向上方隆起。隆起部34将一对连接部32彼此连结。隆起部34具有一对竖立部34a和平坦部34b。
竖立部34a具有从连接部32竖立的形状。竖立部34a平板状地形成。竖立部34a和连接部32的边界部形成为弯曲的形状。
平坦部34b将一对竖立部34a的上端部彼此连结。平坦部34b在预定方向上延伸并且平坦地形成。在本实施方式中,所述预定方向被设定为与一个方向以及上下方向这双方正交的方向(图2中的上下方向)。平坦部34b和竖立部34a的边界部形成为弯曲的形状。
电压检测端子40检测二次电池10的电位。电压检测端子40由与母线30不同的金属构成。电压检测端子40例如由铜构成。电压检测端子40与母线30连接。电压检测端子40与隆起部34连接。更详细而言,电压检测端子40与隆起部34的平坦部34b连接。电压检测端子40被固相接合(超声波接合等)到母线30。电压检测线42被连接到电压检测端子40。电压检测线42与ECU(图示省略)连接。
树脂罩50由树脂构成,覆盖电压检测端子40。树脂罩50通过树脂灌封形成。如图2所示,与所述预定方向正交的正交方向(在本实施方式中与所述一个方向平行的方向)上的树脂罩50的宽度W2大于所述正交方向上的平坦部34b的宽度W1。
如以上说明的那样,在本实施方式的电池模块1中,电压检测端子40与母线30的隆起部34连接,所以抑制由于结露等导致水分附着或滞留于母线30和电压检测端子40的边界部。因此,抑制在所述边界部发生电蚀。
本领域技术人员可以理解上述例示性的实施方式是以下的方案的具体例。
上述实施方式中的电池模块具备:多个二次电池,被配置成在一个方向上排列;母线,将所述多个二次电池中的在所述一个方向上相互邻接的所述二次电池彼此电连接;以及电压检测端子,由与所述母线不同的金属构成,与所述母线连接,所述二次电池具有一对外部端子,所述母线具有:连接部,与所述外部端子连接;以及隆起部,从所述连接部向上方隆起,所述电压检测端子与所述隆起部连接。
在该电池模块中,电压检测端子与母线的隆起部连接,所以抑制由于结露等导致水分附着或滞留于母线和电压检测端子的边界部。因此,抑制在所述边界部发生电蚀。
另外,在所述电池模块中,优选还具备由树脂构成、覆盖所述电压检测端子的树脂罩。
由此,母线和电压检测端子的边界部的防水性提高。
另外,优选所述隆起部具有在预定方向上延伸并且平坦地形成的平坦部,所述电压检测端子与所述平坦部连接,与所述预定方向正交的正交方向上的所述树脂罩的宽度大于所述正交方向上的所述平坦部的宽度。
由此,抑制水分滞留于母线和树脂罩的边界部,所以母线和电压检测端子的边界部的防水性进一步提高。
此外,本次公开的实施方式在所有方面都是例示,不应认为是限制性的。本发明的范围并非由上述实施方式的说明表示而是由权利要求书表示,还包括与权利要求书等同的意义及范围内的所有变更。

Claims (3)

1.一种电池模块,具备:
多个二次电池,被配置成在一个方向上排列;
母线,将所述多个二次电池中的在所述一个方向上相互邻接的所述二次电池彼此电连接;以及
电压检测端子,由与所述母线不同的金属构成,与所述母线连接,
所述二次电池具有一对外部端子,
所述母线具有:
连接部,与所述外部端子连接;以及
隆起部,从所述连接部向上方隆起,
所述电压检测端子与所述隆起部连接。
2.根据权利要求1所述的电池模块,其中,
所述电池模块还具备由树脂构成、覆盖所述电压检测端子的树脂罩。
3.根据权利要求2所述的电池模块,其中,
所述隆起部具有在预定方向上延伸并且平坦地形成的平坦部,
所述电压检测端子与所述平坦部连接,
与所述预定方向正交的正交方向上的所述树脂罩的宽度大于所述正交方向上的所述平坦部的宽度。
CN202111197053.3A 2020-11-25 2021-10-14 电池模块 Pending CN114552143A (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140272520A1 (en) * 2013-03-12 2014-09-18 Samsung Sdi Co., Ltd. Battery module
CN104737328A (zh) * 2012-10-26 2015-06-24 三洋电机株式会社 电源装置以及具备电源装置的电动车辆及蓄电装置、电源装置的制造方法
WO2016158395A1 (ja) * 2015-03-31 2016-10-06 日立オートモティブシステムズ株式会社 二次電池装置
CN106329010A (zh) * 2015-07-02 2017-01-11 通用汽车环球科技运作有限责任公司 在化学苛刻环境下用于高压应用的集成柔性电路熔丝的电弧抑制和保护
US20170179458A1 (en) * 2015-12-18 2017-06-22 Yazaki Corporation Busbar module and battery pack
US20190157649A1 (en) * 2017-11-17 2019-05-23 Yazaki Corporation Bus Bar Module and Wire Harness
CN110024176A (zh) * 2016-12-19 2019-07-16 矢崎总业株式会社 端子用导体模块
CN110556501A (zh) * 2018-05-30 2019-12-10 株式会社自动网络技术研究所 布线模块及蓄电模块

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101501886B (zh) * 2006-08-04 2012-05-16 株式会社杰士汤浅国际 铅蓄电池
JP5537086B2 (ja) * 2009-08-04 2014-07-02 株式会社東芝 二次電池パック
JP2013247056A (ja) 2012-05-29 2013-12-09 Auto Network Gijutsu Kenkyusho:Kk 電池配線用モジュール
US9917336B2 (en) * 2013-02-06 2018-03-13 Sanyo Electric Co., Ltd. Battery system
JP6281398B2 (ja) * 2014-04-21 2018-02-21 株式会社豊田自動織機 電池モジュール
JP2016004678A (ja) 2014-06-17 2016-01-12 トヨタ自動車株式会社 電源装置
US9917291B2 (en) * 2015-05-05 2018-03-13 Johnson Controls Technology Company Welding process for a battery module
JP6533505B2 (ja) * 2016-09-26 2019-06-19 矢崎総業株式会社 バスバーモジュール
JP6715801B2 (ja) * 2017-06-20 2020-07-01 矢崎総業株式会社 溶接構造
CN113330629A (zh) * 2018-11-13 2021-08-31 瑞维安知识产权控股有限责任公司 使用盲铆钉的汇流条与传感器导线附接
KR102344019B1 (ko) * 2019-12-23 2021-12-28 대산전자(주) 퓨즈가 적용된 버스바

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104737328A (zh) * 2012-10-26 2015-06-24 三洋电机株式会社 电源装置以及具备电源装置的电动车辆及蓄电装置、电源装置的制造方法
US20140272520A1 (en) * 2013-03-12 2014-09-18 Samsung Sdi Co., Ltd. Battery module
WO2016158395A1 (ja) * 2015-03-31 2016-10-06 日立オートモティブシステムズ株式会社 二次電池装置
CN106329010A (zh) * 2015-07-02 2017-01-11 通用汽车环球科技运作有限责任公司 在化学苛刻环境下用于高压应用的集成柔性电路熔丝的电弧抑制和保护
US20170179458A1 (en) * 2015-12-18 2017-06-22 Yazaki Corporation Busbar module and battery pack
CN110024176A (zh) * 2016-12-19 2019-07-16 矢崎总业株式会社 端子用导体模块
US20190157649A1 (en) * 2017-11-17 2019-05-23 Yazaki Corporation Bus Bar Module and Wire Harness
CN110556501A (zh) * 2018-05-30 2019-12-10 株式会社自动网络技术研究所 布线模块及蓄电模块

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