WO2019037366A1 - Module de batterie - Google Patents

Module de batterie Download PDF

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Publication number
WO2019037366A1
WO2019037366A1 PCT/CN2017/118557 CN2017118557W WO2019037366A1 WO 2019037366 A1 WO2019037366 A1 WO 2019037366A1 CN 2017118557 W CN2017118557 W CN 2017118557W WO 2019037366 A1 WO2019037366 A1 WO 2019037366A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow
hole
battery module
connecting piece
output connecting
Prior art date
Application number
PCT/CN2017/118557
Other languages
English (en)
Chinese (zh)
Inventor
肖信福
朱涛声
马林
秦峰
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2019037366A1 publication Critical patent/WO2019037366A1/fr

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Classifications

    • 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
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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 the field of battery technologies, and in particular, to a battery module.
  • the two output connecting pieces of the battery module are generally disposed outside the casing for electrically connecting the battery module to the external charging and discharging device. At present, there is no sealing process between each output connecting piece of the existing battery module and the through hole of the box.
  • an object of the present invention is to provide a battery module which is simple in process, low in cost and good in sealing effect.
  • the present invention provides a battery module comprising: a box body provided with a through hole; a plurality of secondary batteries housed in the box body; two output connecting pieces, each output connecting piece fixedly connected to One of the secondary batteries extends out of the box through a corresponding through hole in the case; and at least one sealing member, each sealing member is disposed between the corresponding one of the output connecting piece and the corresponding through hole of the case and sealing the output a connecting piece and the through hole.
  • a sealing member is disposed between the at least one output connecting piece and the corresponding through hole of the case, and the sealing member is sealingly connected to the one output connecting piece and the corresponding through hole, so that the output connecting piece
  • the sealing between the corresponding through holes is achieved via the seal, and the sealing effect is good.
  • the process of sealing the battery module is simple, and the cost is greatly reduced.
  • FIG. 1 is a general assembly diagram of a battery module in accordance with the present invention.
  • FIG. 2 is a perspective view of the battery module of FIG. 1 with the upper cover removed.
  • FIG 3 is a perspective view of the battery module of Figure 2 with the output tab, seal and electrical connector removed.
  • Fig. 4 is a cross-sectional view taken along line A-A of Fig. 1.
  • Fig. 5 is an enlarged view of a circled portion in Fig. 4.
  • Fig. 6 is a modification of Fig. 5;
  • Fig. 7 is a perspective view showing the output connecting piece of the battery module of the present invention connected to the sealing member.
  • Figure 8 is a perspective view of the seal of Figure 7.
  • Figure 9 is a right side view of Figure 8.
  • Fig. 10 is a cross-sectional view taken along line B-B of Fig. 9.
  • a battery module includes: a case 1 provided with a through hole 11; a plurality of secondary batteries 2 housed in the case 1; two output connection pieces 3, each output connection The sheet 3 is fixedly connected to one of the secondary batteries 2 and protrudes out of the housing 1 via a corresponding through hole 11 in the housing 1; and at least one sealing member 4, each sealing member 4 is disposed on a corresponding output connecting piece 3 and a box The output connecting piece 3 and the through hole 11 are sealed between the corresponding through holes 11 of the body 1.
  • a sealing member 4 is disposed between the at least one output connecting piece 3 and the corresponding through hole 11 of the casing 1, and the sealing member 4 sealingly connects the one output connecting piece 3 and the corresponding through hole. 1, the output connecting piece 3 is sealed with the corresponding through hole 1 via the sealing member 4, and the sealing effect is good. Moreover, the process of sealing the battery module is simple, and the cost is greatly reduced.
  • the secondary battery 2 in the battery module of the present invention may be a pouch type secondary battery (having two poles having opposite polarity, and each output stage connecting piece 3 is welded to Corresponding polar ear), cylindrical secondary battery or prismatic secondary battery (two poles with opposite polarity are provided, and each output stage connecting piece 3 is welded to the corresponding pole).
  • the battery module may further include: a plurality of electrical connecting sheets 5, each of the electrical connecting sheets 5 being electrically connected to the corresponding secondary battery 2 for realizing a string between the plurality of secondary batteries 2. in parallel. It is additionally noted that, according to the specific series-parallel manner of all the secondary batteries 2, the two output connecting pieces 3 may be fixedly connected to the same secondary battery 2, or may be fixedly connected to two different secondary batteries 2 .
  • the sealing member 4 may be only one.
  • the one sealing member 4 is disposed between one of the output connecting pieces 3 and the corresponding through hole 11 of the casing 1 and is sealingly connected to the output connecting piece 3 and the casing. 1.
  • the sealing member 4 can be two, and the two sealing members 4 are respectively disposed between the corresponding one of the output connecting piece 3 and the corresponding through hole 11 of the case 1 and are sealingly connected to the output connecting piece 3 and
  • the cabinet 1 is as shown in Fig. 1 and Fig. 2.
  • each sealing member 4 may have a hollow insertion portion 41 passing through a corresponding through hole 11 of the casing 1 and at one side of the through hole 11; a hollow stopper portion 42, and The hollow insertion portion 41 is oppositely disposed and stopped on the other side of the through hole 11; and the hollow snap portion 43 is connected between the hollow insertion portion 41 and the hollow stopper portion 42 to the hollow insertion portion 41 and the hollow stopper portion 42 is for mating with the through hole 11 (such as an interference fit) and sealing the through hole 11.
  • each sealing member 4 communicates with each other for the corresponding output connecting piece 3 to pierce and seal the output connecting piece 3, so that the output connecting piece 3
  • the sealing between the corresponding through hole 1 is achieved via the seal 4 and the sealing effect achieved is good.
  • the hollow insertion portion 41 is on the side of the through hole 11 remote from the secondary battery 2 (ie, the outside of the case 1), and the hollow stop portion 42 is in a state close to the secondary battery 2. Side (ie the inside of the box 1).
  • the hollow insertion portion 41 is on the side close to the secondary battery 2, and the hollow stopper portion 42 is on the side away from the secondary battery 2.
  • the surface of the hollow insertion portion 41 of each sealing member 41 opposed to the hollow stopper portion 42, the surface of the hollow stopper portion 42 opposed to the hollow insertion portion 41, and the hollow snap portion 43 The outer surfaces together form a card slot structure 44.
  • the card slot structure 44 engages the case 1 together with the hollow snap portion 43, the hollow insertion portion 41, and the hollow stop portion 42, so that the seal members 4 are sealed to the corresponding through holes 11 of the case 1.
  • the hollow insertion portion 41, the hollow stopper portion 42, and the hollow snap portion 43 of each of the seal members 4 are integrally formed, such as injection molding.
  • each of the sealing members 4 and the corresponding output connecting piece 3 are insert molding, that is, each sealing member 4 is injection molded on the output connecting piece 3 to be integrally formed.
  • the sealing member 4 in order to ensure that each sealing member 4 can be elastically deformed when mated with the corresponding through hole 11 of the casing 1, the sealing member 4 can be made of an elastic material, thereby hollow insertion of the sealing member 4.
  • the portion 41 is compressed and deformed to pass through the corresponding through hole 11 and on one side of the through hole 11 , and the hollow snap portion 43 is compressed and deformed to cooperate with the through hole 11 , thereby causing each sealing member 4 to be in the case 1
  • the corresponding through holes 11 are sealed and the sealing effect achieved is good.
  • the elastic material may be rubber, flexible polypropylene or flexible polyurethane or the like.
  • the cross-sectional area of the hollow insertion portion 41 at least near one end of the hollow snap portion 43 is larger than the cross-sectional area of the corresponding through hole 11 (this is the correspondence of each seal 4 with the case 1).
  • the through hole 11 is sealed in a state after the connection, so that the hollow insertion portion 41 is stopped on the side of the through hole 11 after being passed through the corresponding through hole 11 and returned to the state before being compressed and deformed.
  • the cross-sectional area of the hollow insertion portion 41 gradually increases from one end away from the hollow engaging portion 43 toward the end close to the hollow engaging portion 43 , which facilitates the passage of the hollow insertion portion 41 through the corresponding passage of the casing 1 .
  • the cross-sectional area of the hollow stop portion 42 at least near one end of the hollow snap portion 43 is larger than the cross-sectional area of the corresponding through hole 11, so that the hollow stop portion 42 and the hollow insertion portion 41 are The two sides of the through hole 11 are clamped to the casing 1 to achieve a good sealing effect.
  • the case 1 may include: an upper cover 12; and a lower case 13 fitted to the upper cover 12 and accommodating the plurality of secondary batteries 2 together with the upper cover 12, and the through holes 11 is disposed on the lower case 13.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un module de batterie, comprenant : une boîte comprenant un trou traversant ; une pluralité de batteries secondaires contenues dans la boîte ; deux pièces de connexion de sortie, chacune d'elles étant reliée de manière fixe à l'une des batteries secondaires et s'étendant hors de la boîte par l'intermédiaire d'un trou traversant correspondant sur la boîte ; et au moins un élément d'étanchéité, qui est disposé entre une pièce de connexion de sortie et le trou traversant correspondant de la boîte pour étanchéifier la pièce de connexion de sortie et le trou traversant. Le module de batterie de la présente invention comprend au moins un élément d'étanchéité disposé entre une pièce de connexion de sortie et le trou traversant correspondant de la boîte, et l'élément d'étanchéité est utilisé pour étanchéifier et connecter la pièce de connexion de sortie et le trou traversant correspondant, de telle sorte que la pièce de connexion de sortie obtient un bon effet d'étanchéité avec un trou traversant correspondant au moyen d'un élément d'étanchéité. De plus, un tel procédé d'étanchéification d'un module de batterie est simple, et le coût est fortement réduit.
PCT/CN2017/118557 2017-08-23 2017-12-26 Module de batterie WO2019037366A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721060234.0 2017-08-23
CN201721060234.0U CN207116544U (zh) 2017-08-23 2017-08-23 电池模组

Publications (1)

Publication Number Publication Date
WO2019037366A1 true WO2019037366A1 (fr) 2019-02-28

Family

ID=61570034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/118557 WO2019037366A1 (fr) 2017-08-23 2017-12-26 Module de batterie

Country Status (2)

Country Link
CN (1) CN207116544U (fr)
WO (1) WO2019037366A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110098363A (zh) * 2019-05-15 2019-08-06 苏州蓝石新动力有限公司 电池控制模块、电池包结构及运载工具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108539325A (zh) * 2018-07-03 2018-09-14 华霆（合肥）动力技术有限公司 软包电芯模组及电动车
CN217788693U (zh) * 2022-07-01 2022-11-11 比亚迪股份有限公司 储能装置和储能装置控制系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101997094A (zh) * 2009-08-18 2011-03-30 三星Sdi株式会社 可再充电电池和电池模块
CN104347831A (zh) * 2013-07-31 2015-02-11 北京联动天翼科技有限公司 高安全性锂离子电池模块及其制作方法
CN204696179U (zh) * 2015-06-26 2015-10-07 宁波来和圣诞礼品有限公司 一种防水电池盒
CN105489811A (zh) * 2014-09-18 2016-04-13 中国电子科技集团公司第十八研究所 一种安全电池组的制备方法
EP3196955A1 (fr) * 2016-01-20 2017-07-26 Robert Bosch Gmbh Module de batterie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101997094A (zh) * 2009-08-18 2011-03-30 三星Sdi株式会社 可再充电电池和电池模块
CN104347831A (zh) * 2013-07-31 2015-02-11 北京联动天翼科技有限公司 高安全性锂离子电池模块及其制作方法
CN105489811A (zh) * 2014-09-18 2016-04-13 中国电子科技集团公司第十八研究所 一种安全电池组的制备方法
CN204696179U (zh) * 2015-06-26 2015-10-07 宁波来和圣诞礼品有限公司 一种防水电池盒
EP3196955A1 (fr) * 2016-01-20 2017-07-26 Robert Bosch Gmbh Module de batterie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110098363A (zh) * 2019-05-15 2019-08-06 苏州蓝石新动力有限公司 电池控制模块、电池包结构及运载工具

Also Published As

Publication number Publication date
CN207116544U (zh) 2018-03-16

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