WO2014178567A1 - Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule - Google Patents

Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule Download PDF

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Publication number
WO2014178567A1
WO2014178567A1 PCT/KR2014/003566 KR2014003566W WO2014178567A1 WO 2014178567 A1 WO2014178567 A1 WO 2014178567A1 KR 2014003566 W KR2014003566 W KR 2014003566W WO 2014178567 A1 WO2014178567 A1 WO 2014178567A1
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WO
WIPO (PCT)
Prior art keywords
battery module
battery
battery modules
present
arranged side
Prior art date
Application number
PCT/KR2014/003566
Other languages
English (en)
Korean (ko)
Inventor
김성종
조재양
안순호
Original Assignee
주식회사 엘지화학
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
Priority claimed from KR20130063090A external-priority patent/KR101446148B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to JP2015555938A priority Critical patent/JP6057311B2/ja
Publication of WO2014178567A1 publication Critical patent/WO2014178567A1/fr
Priority to US14/548,075 priority patent/US9306194B2/en

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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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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 module assembly, and more particularly, to an electrical connection between battery modules in a battery module assembly included in an automotive battery pack.
  • the secondary battery has high applicationability and high electrical energy characteristics such as high energy density according to the product group, and is not only a portable device but also an electric vehicle (EV) or a hybrid electric vehicle (HEV) driven by an electric driving source. It is applied universally.
  • the secondary battery is attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of drastically reducing the use of fossil fuels is generated but also no by-products of energy use are generated.
  • Types of secondary batteries currently widely used include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries, and the like.
  • the operating voltage of the unit secondary battery cell is about 2.5V to 4.2V. Therefore, when a higher output voltage is required, a plurality of secondary battery cells may be connected in series to configure a battery pack.
  • the battery pack may be configured by connecting a plurality of secondary battery cells in parallel according to charge and discharge capacity required for the battery pack. Therefore, the number of secondary battery cells included in the battery pack may be variously set according to the required output voltage or charge and discharge capacity.
  • the present invention has been made in view of the prior art as described above, and an object thereof is to provide a battery module assembly included in a battery pack for an automobile.
  • the battery module assembly according to the present invention for achieving the technical problem is a battery module assembly including two battery modules of the four battery modules are arranged side by side, stacked on the two battery modules arranged side by side
  • the cylindrical secondary battery cells included in each battery module are electrically connected in parallel by plates disposed on top of each of the two battery modules arranged side by side, and arranged bottom of the two battery modules arranged side by side.
  • the two battery modules arranged side by side by a metal plate are electrically connected in parallel, and each battery module is formed by a metal plate disposed at each top and bottom of each of the two battery modules stacked on the two battery modules arranged side by side.
  • the cylindrical secondary battery cells included in the electrically parallel The four battery modules are electrically connected in series.
  • the material of the metal plate is any one selected from the group consisting of nickel, copper, brass and nickel plated copper.
  • the metal plate is connected to the cylindrical secondary battery cell included in each battery module through resistance welding, ultrasonic welding, laser welding or conductive adhesive.
  • the metal plate has a thickness of 0.1 mm to 0.4 mm.
  • the battery module assembly according to the present invention further includes a bus bar electrically connecting the two battery modules arranged side by side and the two battery modules stacked thereon, respectively.
  • the plates disposed on each of the top of the two battery modules arranged side by side are larger than the area of each battery module, the portion outside the area of the battery module is folded vertically, the vertically folded portion and the stack
  • the busbars are interposed between plates disposed at lower ends of two battery modules.
  • FIG. 1 is a perspective view of a battery pack including a battery module assembly according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of a battery pack including a battery module assembly according to an embodiment of the present invention.
  • FIG 3 is a perspective view of a battery module constituting a battery module assembly according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of a battery module 1 of the four battery modules included in the battery module assembly according to an embodiment of the present invention.
  • FIG 5 is a perspective view of a battery module 2 of the four battery modules included in the battery module assembly according to an embodiment of the present invention.
  • FIG. 6 is an exploded perspective view illustrating a state in which battery modules 1 and 2 are connected among four battery modules included in a battery module assembly according to an exemplary embodiment of the present invention.
  • FIG. 7 is an exploded perspective view illustrating the stacking of three and four battery modules among four battery modules included in a battery module assembly according to an exemplary embodiment of the present invention.
  • FIG. 8 is a perspective view of a battery module assembly according to an embodiment of the present invention.
  • FIG. 1 is a perspective view illustrating a battery pack 1 including a battery module assembly 50 according to an embodiment of the present invention.
  • the battery pack 1 illustrated in FIG. 1 is an automotive battery pack 1 that may be mounted on an automobile, a hybrid vehicle (HEV), an electric vehicle (EV), and the like.
  • HEV hybrid vehicle
  • EV electric vehicle
  • the size of the battery pack 1 is in accordance with the standard of the automotive standard battery. Therefore, the battery pack 1 may have a hexahedron shape as a whole.
  • the battery module assembly 50 may also have a size to comply with the standard of the standard battery for automobiles.
  • sizes of the battery pack 1 and the battery module assembly 50 are not limited to the above examples, and the length of the battery pack 1 and the battery module assembly 50 may vary depending on the embodiment.
  • FIG. 2 is an exploded perspective view of a battery pack 1 including a battery module assembly 50 according to an embodiment of the present invention.
  • the battery module assembly 50 according to the exemplary embodiment of the present invention has an inner case 30 connected thereto and is embedded between the upper pack case 10 and the lower pack case 70 to constitute the battery pack 1.
  • FIG 3 is a perspective view of the battery module 60 constituting the battery module assembly 50 according to an embodiment of the present invention.
  • the battery module 60 includes a plurality of cylindrical secondary battery cells 62 (hereinafter, referred to as 'cells') interposed between the upper frame 61 and the lower frame 63.
  • 'cells' cylindrical secondary battery cells 62
  • the electrode of the cell 62 exposed toward the upper frame 61 is the high potential electrode (+)
  • the electrode of the cell 62 exposed toward the lower frame 63 is the low potential ( ⁇ ).
  • the upper frame 61 and the lower frame 63 are illustrated in the upper frame 61 in a dark color and the lower frame 63 in a light color to facilitate visual identification.
  • the battery pack 1 may have an operating voltage of 12V for an automobile.
  • the secondary battery cell 62 according to an embodiment of the present invention may have an operating voltage of 3V. Therefore, the four battery modules 60 may be connected in series to form the battery module assembly 50.
  • top, bottom, top, and bottom are terms indicating a location about a direction shown in the drawings.
  • Battery module assembly 50 is composed of four battery modules (60). Hereinafter, in order to distinguish the four battery modules 60 will be numbered in order.
  • FIG. 4 is a perspective view of a battery module 60-1 of four battery modules included in the battery module assembly 50 according to an exemplary embodiment of the present invention.
  • the plate 51 is added to the upper frame 61-1 of the battery module 60 shown in FIG. 3.
  • the plate 51 is a metal and is electrically connected to the high potential terminal of the battery module 60-1. Therefore, the high potential terminals of the cells 62-1 included in the battery module 60-1 may be electrically connected in parallel by the plate 51.
  • the material of the plate 51 may be any one selected from the group consisting of nickel, copper, brass and nickel plated copper.
  • the material is only one example and may include any metal that can be easily replaced by those skilled in the art.
  • the thickness of the plate 51 is 0.1mm ⁇ 0.4mm.
  • the thickness can be variously designed in consideration of the stiffness, electrical conductivity, etc. according to the properties of the metal.
  • the plate 51 and the cell 62-1 are connected by resistance welding, ultrasonic welding, laser welding or conductive adhesive.
  • the total area of the plate 51 is larger than the area of the upper frame 61-1 of the first battery module 60-1.
  • a part of the plate 51 that is, a portion 51-a that is out of an area of the upper frame 61-1 of the first battery module 60-1, is folded vertically.
  • the folded portion 51-a is a portion for mechanical connection and electrical connection with a battery module (see 60-3 of FIG. 7) stacked on the upper side when configuring the battery module assembly 50.
  • FIG. 5 is a perspective view of a battery module 60-2 of four battery modules included in the battery module assembly 50 according to an exemplary embodiment of the present invention.
  • the second battery module 60-2 may check that the battery module 60 shown in FIG. 3 is turned upside down.
  • the plate 52 is added to the lower frame 63-2 of the battery module 60-2.
  • the plate 52 is a metal and is electrically connected to the low potential terminal of the battery module 60-2. Therefore, the low potential terminals of the cells 62-2 included in the second battery module 60-2 may be electrically connected in parallel by the plate 52.
  • the material, thickness, and welding method of the plate 52 are the same as those of the plate 51 shown in FIG. 4.
  • the total area of the plate 52 is larger than that of the lower frame 63-2 of the second battery module 60-2.
  • the folded portion 52-a is a portion for mechanical connection and electrical connection with a battery module (see 60-4 of FIG. 7) stacked on top when the battery module assembly 50 is configured.
  • FIG. 6 is an exploded perspective view illustrating a case in which the first and second battery modules 60-1 and 60-2 of the four battery modules included in the battery module assembly 50 are connected according to an exemplary embodiment of the present invention. .
  • the plate 53 is disposed at the bottom of the first and second battery modules 60-1 and 60-2.
  • the plate 53 is a metal and is electrically connected to the low potential terminal of the first battery module 60-1. Accordingly, the low potential terminals of the cells 62-1 included in the first battery module 60-1 may be electrically connected in parallel by the plate 53.
  • the plate 53 is a metal is electrically connected to the high potential terminal of the second battery module 60-2. Accordingly, the high potential terminals of the cells 62-included in the second battery module 60-2 may be electrically connected in parallel by the plate 53.
  • the plate 53 has an area including both the first battery module 60-1 and the second battery module 60-2. Therefore, the low potential terminal of the first battery module 60-1 and the high potential terminal of the second battery module 60-2 may be electrically connected in series.
  • the material, thickness, and welding method of the plate 53 are the same as the plate 51 shown in FIG. 4.
  • the total area of the plate 53 is larger than the sum of the area of the first battery module 60-1 and the second battery module 60-2.
  • a part of the plate 53 that is, the portion 53-a that is out of the area of the sum of the first battery module 60-1 and the second battery module 60-2, is folded vertically.
  • a screw thread 68 is formed on the side of the first battery module 60-1 and the side of the second battery module 60-2. Accordingly, a screw hole is formed in the vertically folded portion 53-a, and the plate 53 is connected to the first battery module 60-1 and the second battery module 60 through the screw line 68 and the screw. -2) and can be mechanically connected.
  • the battery module 60 is formed on one side of the upper frame 61 or the lower frame 63, the connecting portion 67, 67-1 for coupling with the other battery module is formed. It is.
  • connection parts 67 and 67-1 formed on side surfaces of the upper frame 61 and the lower frame 63 of the battery module 60 may be identified.
  • four battery modules 60 constitute the battery module assembly 50 (see reference numeral 50 of FIG. 2).
  • the battery module may be mechanically coupled to the other battery module 60 disposed adjacent to the side via the connecting portion (67, 67-1).
  • the connecting portion (67, 67-1) is' ' or ' 'Has a shape. remind ' 'Connected section 67 of the shape'
  • the connecting portions 67-1 of the 'shape are connected to each other to prevent the battery module 60 from escaping in the horizontal direction.
  • the battery modules 60 to be adjacent to each other include the above ' 'Connected section 67 of the shape' '-Shaped connecting portion 67-1 may be arranged to be interconnected.
  • the connecting parts 67 and 67-1 are formed on the side surfaces of the first battery module 60-1 and the second battery module 60-2, the first battery module 60-1 and the second battery module 60-1 are formed.
  • the battery module 60-2 may be mechanically connected through the connection parts 67 and 67-1.
  • the connecting parts 67 and 67-1 improve the mechanical coupling force between the battery modules 60 constituting the battery module assembly 50.
  • FIG. 7 is an exploded perspective view illustrating a stacking of three and four battery modules 60-3 and 60-4 among four battery modules included in the battery module assembly 50 according to an exemplary embodiment of the present invention. to be.
  • a plate 54 is coupled to the high potential terminal of the third battery module 60-3.
  • the plate 55 is coupled to the low potential terminal of the third battery module 60-3.
  • the cells 62-3 included in the third battery module 60-3 by the plates 54 and 55 may be electrically connected in parallel.
  • the plate 56 is coupled to the high potential terminal of the fourth battery module 60-4.
  • the plate 57 is coupled to the low potential terminal of the fourth battery module 60-3.
  • the cells 62-4 included in the 4th battery module 60-4 by the plates 56 and 57 may be electrically connected in parallel.
  • the third battery module 60-3 is electrically connected in series with the first battery module 60-1. Therefore, the low potential terminal of the third battery module 60-3 is stacked to be adjacent to the high potential terminal of the first battery module 60-1.
  • the fourth battery module 60-4 is electrically connected in series with the second battery module 60-2. Therefore, the high potential terminal of the fourth battery module 60-4 is stacked to be adjacent to the low potential terminal of the second battery module 60-2.
  • a protrusion 66 is formed at an upper end of the upper frame 61 of the battery module 60, and a shape of the protrusion 66 is formed at a lower end of the lower frame 63. And an indentation 66-1 corresponding to the position.
  • protrusions 66 formed at the upper end of the upper frame 61 and lower ends of the lower frame 63 correspond to the protrusions 66 according to an embodiment of the present invention. It can be seen that the indentation portion 66-1 is formed in the shape and position.
  • the battery modules 60 constitute the battery module assembly 50 (see reference numeral 50 of FIG. 2).
  • the protrusions 66 and the indents 66-1 fix the positions of the battery module located above and the battery module located below when the battery modules 60-1 to 60-4 are stacked vertically. You can.
  • the battery modules 60-1 to 60-4 are stacked by the protrusion 66 and the indentation 66-1, the battery modules 60 can be easily stacked, and the upper battery module ( 60 and the lower battery module 60 can be prevented from escaping from the correct position.
  • the first battery module 60-1 and the third The battery module 60-3 may be mechanically connected through the protrusion 66 and the indentation 66-1.
  • the protrusion part 66 and the indentation part 66-1 are formed in the second and fourth battery modules 60-2 and 60-4, the second battery module 60-2 and the The 4th battery module 60-4 may be mechanically connected through the protrusion 66 and the indentation 66-1.
  • the first battery module 60-1 and the third battery module 60-3 may form a mechanical connection and an electrical connection through the vertically folded portion 51-a of the plate 51.
  • the No. 2 battery module 60-2 and the No. 4 battery module 60-4 may form a mechanical connection through the vertically folded portion 52-a in the plate 52.
  • a mechanical connection may be configured through the screw line 68 formed on the lower frame of the third battery module 60-3, the vertically folded portion 51-a and the screw from the plate 51.
  • a mechanical connection may be configured through a screw line 68 formed on the upper frame of the fourth battery module 60-4, a portion 51-a vertically folded from the plate 51, and a screw.
  • FIG 8 is a perspective view of a battery module assembly 50 according to an embodiment of the present invention.
  • the battery modules 60-1 to 60-4 described with reference to FIGS. 4 to 7 constitute mechanical and electrical connections.
  • the battery modules 60 stacked vertically that is, the first battery module 60-1 and the third battery module 60-3, the second battery module ( 60-2 and the fourth battery module 60-4 are electrically connected in series through a bus bar 58.
  • the bus bar 58 is also the first battery module 60-1, the third battery module 60-3, the second battery module 60-2 and the fourth battery module 60 through the screw. -4) can be connected between.

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

Abstract

La présente invention concerne un ensemble de modules de batterie compris dans un bloc-batterie pour véhicule. Selon la présente invention, l'ensemble de modules de batterie stable et économique comprenant une pluralité d'éléments de batterie secondaires est décrit.
PCT/KR2014/003566 2013-04-29 2014-04-23 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule WO2014178567A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015555938A JP6057311B2 (ja) 2013-04-29 2014-04-23 自動車用バッテリーパックに含まれるバッテリーモジュール集合体
US14/548,075 US9306194B2 (en) 2013-04-29 2014-11-19 Battery module assembly for vehicle's battery pack

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20130047475 2013-04-29
KR10-2013-0047475 2013-04-29
KR20130063090A KR101446148B1 (ko) 2013-04-29 2013-05-31 자동차용 배터리 팩에 포함되는 배터리 모듈 집합체
KR10-2013-0063090 2013-05-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/548,075 Continuation US9306194B2 (en) 2013-04-29 2014-11-19 Battery module assembly for vehicle's battery pack

Publications (1)

Publication Number Publication Date
WO2014178567A1 true WO2014178567A1 (fr) 2014-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/003566 WO2014178567A1 (fr) 2013-04-29 2014-04-23 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule

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CN (2) CN104124422B (fr)
WO (1) WO2014178567A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101446148B1 (ko) 2013-04-29 2014-10-30 주식회사 엘지화학 자동차용 배터리 팩에 포함되는 배터리 모듈 집합체
WO2014178567A1 (fr) * 2013-04-29 2014-11-06 주식회사 엘지화학 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule
CN110854322A (zh) * 2019-09-20 2020-02-28 杭州乾代科技有限公司 模块化锂电池模组

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006244982A (ja) * 2005-02-04 2006-09-14 Ritsuwa Yo バッテリ組立体
KR20100088030A (ko) * 2009-01-29 2010-08-06 (주)아이셀시스템즈코리아 셀 상호간 복합연결망으로 구성된 셀 카트리지
JP2011154883A (ja) * 2010-01-27 2011-08-11 Sanyo Electric Co Ltd バッテリシステム
KR20120068830A (ko) * 2010-09-17 2012-06-27 파나소닉 주식회사 전지 블록 및 전지 모듈

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102447081B (zh) * 2010-10-13 2014-03-26 微宏动力系统（湖州）有限公司 电池组支撑架
KR101189885B1 (ko) * 2010-10-19 2012-10-10 산요덴키가부시키가이샤 전원 장치 및 이를 사용한 차량 및 축전 장치
JP5699559B2 (ja) * 2010-11-17 2015-04-15 ソニー株式会社 非水電解質電池
WO2014178567A1 (fr) * 2013-04-29 2014-11-06 주식회사 엘지화학 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006244982A (ja) * 2005-02-04 2006-09-14 Ritsuwa Yo バッテリ組立体
KR20100088030A (ko) * 2009-01-29 2010-08-06 (주)아이셀시스템즈코리아 셀 상호간 복합연결망으로 구성된 셀 카트리지
JP2011154883A (ja) * 2010-01-27 2011-08-11 Sanyo Electric Co Ltd バッテリシステム
KR20120068830A (ko) * 2010-09-17 2012-06-27 파나소닉 주식회사 전지 블록 및 전지 모듈

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CN104124422A (zh) 2014-10-29
CN203850370U (zh) 2014-09-24
CN104124422B (zh) 2017-01-04

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