WO2014178566A1 - 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
WO2014178566A1
WO2014178566A1 PCT/KR2014/003565 KR2014003565W WO2014178566A1 WO 2014178566 A1 WO2014178566 A1 WO 2014178566A1 KR 2014003565 W KR2014003565 W KR 2014003565W WO 2014178566 A1 WO2014178566 A1 WO 2014178566A1
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WO
WIPO (PCT)
Prior art keywords
battery module
battery
battery modules
present
module assembly
Prior art date
Application number
PCT/KR2014/003565
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 KR20130063089A external-priority patent/KR101486928B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to US14/422,268 priority Critical patent/US9882178B2/en
Priority to JP2015547877A priority patent/JP6080242B2/ja
Publication of WO2014178566A1 publication Critical patent/WO2014178566A1/fr

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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
    • H01M50/213—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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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 a mechanical connection between the battery module in the battery module assembly included in the 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 above technical problem is a battery module assembly comprising a plurality of cylindrical secondary battery cells (hereinafter 'cell') including four battery modules interposed between the upper frame and the lower frame, Two battery modules of the four battery modules are arranged side by side, and two battery modules are stacked on the two battery modules arranged side by side.
  • 'cell' cylindrical secondary battery cells
  • a protrusion is formed at an upper end of the upper frame of the battery module, an indentation corresponding to the shape and position of the protrusion is formed at the lower end of the lower frame, and the stacked battery modules Any one of the protrusions and the other one indentation is combined.
  • one side of the upper frame or the lower frame is formed with a connection for coupling with the other battery module, the battery modules arranged in parallel with each of the four battery modules, the connection portion Is connected by.
  • the connecting portion, ' ' or ' Can have a shape.
  • the two battery modules arranged side by side and positioned below are connected through a plate interposed at the bottom.
  • the plate interposed in the lower portion is larger than the sum of the two battery modules arranged side by side and located below, and in the plate interposed in the lower portion, the portions apart from the two battery modules arranged side by side and positioned below are vertical. Folded into the side by side and are connected via a screw to the side of the two battery modules located below.
  • the upper part of the two battery modules arranged side by side and positioned below a portion of the vertically folded plate is connected, the vertically folded plate portion is stacked on the two battery modules arranged side by side Connected to each of the two battery modules.
  • a screw thread is formed on the side surfaces of the upper frame and the lower frame, and the vertically folded plate portion is connected to the upper frame or the lower frame through the screw thread and the screw.
  • 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 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.
  • the connecting parts 67 and 67-1 formed on the 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 60 may be mechanically coupled to another battery module 60 disposed adjacent to the side through the connecting parts 67 and 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. L'ensemble de modules de batterie selon la présente invention comprend quatre modules de batterie à l'intérieur desquels plusieurs éléments de batterie secondaires cylindriques (appelés ci-après "éléments") sont interposés entre un cadre supérieur et un cadre inférieur. Deux des quatre modules sont disposés côte-à-côte et deux modules de batterie sont empilés sur les deux modules de batterie disposés côte-à-côte. Selon la présente invention, l'ensemble de modules de batterie stable et économique comprenant la pluralité d'éléments de batterie secondaires est décrit.
PCT/KR2014/003565 2013-04-29 2014-04-23 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule WO2014178566A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/422,268 US9882178B2 (en) 2013-04-29 2014-04-23 Battery module assembly for vehicle's battery pack
JP2015547877A JP6080242B2 (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

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20130047475 2013-04-29
KR10-2013-0047475 2013-04-29
KR10-2013-0063089 2013-05-31
KR20130063089A KR101486928B1 (ko) 2013-04-29 2013-05-31 자동차용 배터리 팩에 포함되는 배터리 모듈 집합체

Publications (1)

Publication Number Publication Date
WO2014178566A1 true WO2014178566A1 (fr) 2014-11-06

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PCT/KR2014/003565 WO2014178566A1 (fr) 2013-04-29 2014-04-23 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule

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WO (1) WO2014178566A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
WO2014178566A1 (fr) * 2013-04-29 2014-11-06 주식회사 엘지화학 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule
KR101446148B1 (ko) 2013-04-29 2014-10-30 주식회사 엘지화학 자동차용 배터리 팩에 포함되는 배터리 모듈 집합체
CN105336896B (zh) * 2015-11-11 2019-03-26 杭州天丰电源股份有限公司 汽车锂离子启动电池
CN107068955B (zh) * 2017-04-09 2019-12-27 河南锂想动力科技有限公司 一种电池包
CN106848167A (zh) * 2017-04-09 2017-06-13 河南锂想动力科技有限公司 一种电磁屏蔽电池包

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JP2004171856A (ja) * 2002-11-19 2004-06-17 Matsushita Electric Ind Co Ltd 電池間接続構造および電池モジュール並びに電池パック
JP3744646B2 (ja) * 1997-04-16 2006-02-15 日本軽金属株式会社 電気自動車用バッテリー設置方法および設置構造
KR20120114308A (ko) * 2011-01-25 2012-10-16 파나소닉 주식회사 전지 모듈 및 이에 이용되는 조전지
KR20120130224A (ko) * 2011-01-25 2012-11-29 파나소닉 주식회사 전지모듈 및 이에 이용되는 조전지

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CN2842750Y (zh) * 2005-11-21 2006-11-29 北京有色金属研究总院 一种便于电池通风散热的电池箱体
WO2007102671A1 (fr) * 2006-03-06 2007-09-13 Lg Chem, Ltd. Élément de détection de tension et module de batterie faisant intervenir cet élément
US9673540B2 (en) * 2007-07-16 2017-06-06 Lg Chem, Ltd. Secondary battery pack based on mechanical connection manner
CN107068921A (zh) * 2009-04-01 2017-08-18 株式会社Lg化学 中大型电池组
WO2012035683A1 (fr) * 2010-09-17 2012-03-22 パナソニック株式会社 Bloc batterie et module batterie
WO2014178566A1 (fr) * 2013-04-29 2014-11-06 주식회사 엘지화학 Ensemble de modules de batterie compris dans un bloc-batterie pour véhicule

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Publication number Priority date Publication date Assignee Title
JP3744646B2 (ja) * 1997-04-16 2006-02-15 日本軽金属株式会社 電気自動車用バッテリー設置方法および設置構造
JP2004171856A (ja) * 2002-11-19 2004-06-17 Matsushita Electric Ind Co Ltd 電池間接続構造および電池モジュール並びに電池パック
KR20120114308A (ko) * 2011-01-25 2012-10-16 파나소닉 주식회사 전지 모듈 및 이에 이용되는 조전지
KR20120130224A (ko) * 2011-01-25 2012-11-29 파나소닉 주식회사 전지모듈 및 이에 이용되는 조전지

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CN104124405B (zh) 2016-08-24
CN104124405A (zh) 2014-10-29
CN204011509U (zh) 2014-12-10

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