WO2014050330A1 - Dispositif de stockage d'électricité et procédé de soudage - Google Patents

Dispositif de stockage d'électricité et procédé de soudage Download PDF

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Publication number
WO2014050330A1
WO2014050330A1 PCT/JP2013/071763 JP2013071763W WO2014050330A1 WO 2014050330 A1 WO2014050330 A1 WO 2014050330A1 JP 2013071763 W JP2013071763 W JP 2013071763W WO 2014050330 A1 WO2014050330 A1 WO 2014050330A1
Authority
WO
WIPO (PCT)
Prior art keywords
external terminal
bus bar
hole
storage device
welded
Prior art date
Application number
PCT/JP2013/071763
Other languages
English (en)
Japanese (ja)
Inventor
雅和 ▲堤▼
中村　純
Original Assignee
株式会社Ｇｓユアサ
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 株式会社Ｇｓユアサ filed Critical 株式会社Ｇｓユアサ
Priority to JP2014538267A priority Critical patent/JP6258858B2/ja
Publication of WO2014050330A1 publication Critical patent/WO2014050330A1/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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • 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
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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
    • 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
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/562—Terminals characterised by the material
    • 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 power storage device including a power storage element having an external terminal and a bus bar connected to the external terminal.
  • the present invention also relates to a method for welding an external terminal of a power storage element and a bus bar.
  • chargeable / dischargeable storage elements such as batteries (lithium ion batteries, nickel metal hydride batteries, etc.) and capacitors (electric double layer capacitors, etc.) are used in vehicles (automobiles, motorcycles, etc.) and various devices (mobile terminals, notebook computers, etc.). It has been adopted as a power source.
  • various types of batteries are provided.
  • a battery module in which external terminals of a plurality of battery cells are connected by a conductive bus bar and configured as one battery (Patent Document 1).
  • the external terminals and the bus bar are laser-welded in order to connect the external terminals of the plurality of battery cells with the bus bar.
  • laser light is irradiated from the upper part of the bus bar.
  • the amount of heat required to melt the plate-like bus bar in the thickness direction is required. Therefore, the thermal damage of the external terminal, and further the thermal damage of the electrode body that is the internal structure of the battery cell are increased.
  • an object of the present invention is to provide a power storage device that can reduce thermal damage to the external terminal of the power storage element, and a method for welding the external terminal of the power storage element and the bus bar.
  • the power storage device includes: A storage element having an external terminal; A bus bar having a connection portion and connected to an external terminal at the connection portion; The connecting portion of the bus bar has a through hole, The inner side surface part which defines this through-hole, and the external terminal are welded.
  • the external terminal side of the inner side surface part defining the through hole and the external terminal are welded, You may do it.
  • a part of the inner surface portion in the circumferential direction or the entire circumference of the inner surface portion and the external terminal are welded, You may do it.
  • the external terminal has a shaft portion inserted into the power storage element,
  • the inner side surface part that defines the through hole and the part that is away from the shaft part in a direction intersecting the axis of the shaft part of the external terminals are welded, You may do it.
  • the through hole is arranged at a position overlapping the axial direction with respect to a location away from the axial portion of the external terminal in the direction intersecting the axial center of the axial portion. You may do it.
  • the welding method of the external terminal and the bus bar of the electricity storage device according to the present invention, A method of welding the external terminal and the bus bar of the electricity storage device having the external terminal, Laser light is irradiated toward the inner side surface from the boundary line between the external terminal and the inner side surface defining the through hole formed in the bus bar, and the inner side surface and the external terminal are welded.
  • FIG. 1 is a perspective view of a battery module according to an embodiment of the present invention.
  • FIG. 2 shows a plan view of the battery module.
  • FIG. 3 shows a perspective view of a battery cell constituting the battery module.
  • FIG. 4 shows a perspective view of a bus bar for connecting the battery cells.
  • 5 shows an enlarged cross-sectional view of the bus bar taken along line VV of FIG.
  • FIG. 6 shows a partially enlarged cross-sectional view of the bus bar welded to the external terminal.
  • FIG. 7 is a plan view showing an aspect of a place where the bus bar is welded to the external terminal.
  • FIG. 8 is a plan view showing another aspect of the place where the bus bar is welded to the external terminal.
  • FIG. 9 shows a partial plan view of a battery module according to another embodiment of the present invention.
  • FIG. 10 is a partially enlarged cross-sectional view of a battery module according to still another embodiment of the present invention.
  • FIG. 11 is a partial plan view of a battery module according to still another embodiment of the present invention.
  • 12 shows an enlarged cross-sectional view of the battery module taken along line XII-XII of FIG.
  • the power storage device includes: A storage element having an external terminal; A bus bar having a connection portion and connected to an external terminal at the connection portion; The connecting portion of the bus bar has a through hole, The inner side surface part which defines this through-hole, and the external terminal are welded.
  • the inner side surface portion that defines the through hole of the connection portion of the bus bar and the external terminal are welded.
  • the external terminal side of the inner side surface part defining the through hole and the external terminal are welded. You may do it.
  • the external terminal side of the inner side surface portion defining the through hole and the external terminal are welded. Therefore, since the amount of heat for welding is further reduced, thermal damage to the external terminals can be further reduced.
  • a part of the inner surface portion in the circumferential direction or the entire circumference of the inner surface portion and the external terminal are welded, You may do it.
  • the external terminal has a shaft portion inserted into the power storage element,
  • the inner side surface part that defines the through hole and the part away from the shaft part in the direction intersecting the axis of the shaft part of the external terminals are welded. You may do it.
  • the shaft portion inserted into the power storage element is provided in the external terminal. And the location away from the said axial part in the direction which cross
  • the through hole is arranged at a position overlapping the axial direction with respect to a location away from the axial portion of the external terminal in the direction intersecting the axial center of the axial portion. You may do it.
  • the through hole is arranged at a position overlapping in the axial direction with respect to a location away from the axial portion in a direction intersecting with the axial center of the axial portion.
  • the welding method of the external terminal and the bus bar of the electricity storage device according to the present invention, A method of welding the external terminal and the bus bar of the electricity storage device having the external terminal, Laser light is irradiated toward the inner side surface side from the boundary line where the external terminal and the inner side surface portion defining the through hole formed in the bus bar come into contact, and the inner side surface portion and the external terminal are welded.
  • the laser beam is irradiated toward the inner side surface side from the boundary line where the external terminal and the inner side surface portion defining the through hole provided in the connection portion of the bus bar contact.
  • an external terminal and the inner surface part which demarcates a through-hole are welded.
  • heat amount for welding becomes small. Therefore, the thermal damage of the external terminal can be reduced.
  • the battery module according to the present embodiment includes a plurality of battery cells (storage elements) 1,... And a housing 10 that houses the plurality of battery cells 1.
  • the battery cell 1 includes a case 2 as shown in FIG.
  • the case 2 includes a case main body 2a having an opening and a lid plate 2b that closes and seals the opening of the case main body 2a.
  • An electrode body (not shown) is accommodated in the case 2.
  • the battery cell 1 can employ a rectangular battery having a rectangular parallelepiped appearance or a round battery having a cylindrical appearance.
  • the battery cell 1 which concerns on this embodiment is a square battery. Therefore, the case body 2a has a bottomed rectangular tube shape that is flat in the width direction.
  • the lid plate 2b is a rectangular plate material corresponding to the opening of the case body 2a.
  • the external gasket 3 is disposed on the outer surface of the case 2, more specifically, on the outer surface of the cover plate 2b.
  • the external terminal 4 is disposed on the outer surface of the external gasket 3.
  • the external gasket 3 has a recess, and the external terminal 4 is disposed in the recess.
  • the external terminal 4 is made of, for example, an aluminum-based metal material such as aluminum or an aluminum alloy.
  • a through opening (not shown) is formed in the lid plate 2b.
  • the through opening (see FIG. 6) is also formed in the external gasket 3.
  • the external gasket 3 is arranged on the outer surface of the cover plate 2b so that the through-opening of the external gasket 3 coincides with the through-opening of the cover plate 2b.
  • the external terminal 4 has a shaft portion 4a (see FIG. 6) that passes through these through openings.
  • a shaft portion 4a of the external terminal 4 penetrating the external gasket 3 and the cover plate 2b through the two through openings is connected to a current collector (not shown). This current collector is connected to the electrode body. Thereby, the external terminal 4 is electrically connected to the electrode body.
  • the external gasket 3 and the external terminal 4 for the positive electrode and the external gasket 3 and the external terminal 4 for the negative electrode are provided in the battery cell 1.
  • the external gasket 3 and the external terminal 4 for the positive electrode are disposed at one end in the longitudinal direction of the lid plate 2b.
  • the external gasket 3 and the external terminal 4 for the negative electrode are disposed at the other end in the longitudinal direction of the lid plate 2b.
  • the external gasket 3 and the external terminal 4 have a rectangular shape in plan view.
  • the external gasket 3 and the external terminal 4 have a rectangular shape in which the dimension in the width direction of the cover plate 2b is small and the dimension in the direction orthogonal to the width direction is small.
  • the upper part of the external terminal 4 is a flat surface 4b. Since the external terminal 4 is rectangular in plan view, the flat surface 4b is also rectangular. The flat surface 4b of the external terminal 4 is separated from the outer surface of the cover plate 2b. The flat surface 4 b of the external terminal 4 protrudes from the external gasket 3. The flat surface 4b of the external terminal 4 for positive electrode and the flat surface 4b of the external terminal 4 for negative electrode are at the same height position with respect to the outer surface of the cover plate 2b.
  • the plurality of battery cells 1,... are arranged in parallel so as to be aligned in the short direction of the cover plate 2b.
  • ten battery cells 1 are arranged in parallel.
  • Adjacent battery cells 1 and 1 are arranged so that the polarities are opposite. Thereby, by connecting the adjacent external terminals 4 and 4, all the battery cells 1 are connected in series, and one battery is comprised.
  • the external terminals 4 and 4 of the battery cells 1 and 1 arranged in the short direction of the cover plate 2 b are connected by a bus bar 5. More specifically, the external terminal 4 for the positive electrode of one of the adjacent battery cells 1, 1 and the external terminal for the negative electrode of the other battery cell 1 of the adjacent battery cells 1, 1. 4 is close. These external terminals 4 and 4 are connected to each other by a bus bar 5.
  • an external connection bus bar 5A includes an external terminal 4 of the battery cell 1 at one end of the plurality of battery cells 1 connected in series and a battery at the other end of the plurality of battery cells 1 connected in series. Each is connected to an external terminal 4 of the cell 1.
  • the bus bar 5A is an external connection bus bar connected to another battery module, another device, a load, or a power source.
  • the bus bar 5 includes a main body portion 6 and a pair of connection portions 7 and 7 provided at both ends of the main body portion 6.
  • the connection portion 7 is a portion that is placed on the flat surface 4 b of the external terminal 4 and connected to the external terminal 4.
  • the main body 6 connects a pair of connecting portions 7 and 7.
  • the bus bar 5 has a flat surface 5a and is formed in a flat plate shape that is rectangular in plan view.
  • the bus bar 5 is formed of, for example, a plate material made of an aluminum-based metal material such as aluminum or an aluminum alloy.
  • a through hole 8 is provided in the connecting portion 7.
  • the through hole 8 of the present embodiment is formed in a rectangular shape (square shape) in plan view. Moreover, this through-hole 8 has penetrated the connection part 7 so that it may become the same magnitude
  • the through hole 8 is not limited to a rectangular shape in plan view.
  • the through hole 8 may have a circular shape (perfect circular shape, elliptical shape), a polygonal shape, or the like in plan view.
  • the inner side surface portion 8a that defines the through hole 8 and the external terminal 4 are welded.
  • the external terminal 4 side portion of the inner side surface portion 8a and the external terminal 4 are welded.
  • the plurality of battery cells 1,... are arranged in the same parallel state as when the battery module is completed on a conveyor (not shown) such as a belt conveyor.
  • the plurality of battery cells 1 arranged in a parallel state are transported by the transport device to an operation region of the welding device 20 (hereinafter referred to as a welding area).
  • the welding apparatus of this embodiment is a laser welding apparatus, for example.
  • a bus bar automatic supply device (not shown) arranged adjacent to the welding device 20 receives the bus bar 5 by a holding body configured to hold the bus bar 5. .
  • the automatic bus bar supply device arranges the received bus bar 5 so as to straddle the external terminals 4 and 4 of the adjacent battery cells 1 and 1.
  • the welding head 21 that emits the laser light L moves along the inner side surface portion 8 a of the bus bar 5.
  • the welding head 21 emits the laser light L toward a portion of the inner side surface portion 8a on the external terminal 4 side so that the optical axis of the laser light L intersects the inner side surface portion 8a in an inclined state.
  • the laser beam L is irradiated such that a portion on the inner side surface portion 8a side is a focal position rather than the boundary between the inner side surface portion 8a and the external terminal 4.
  • the range W irradiated with the laser light L is the entire circumference of the inner side surface portion 8a.
  • the part W of the circumferential direction in the inner surface part 8a may be sufficient as the range W to which the laser beam L is irradiated.
  • the connection portion 7 of the bus bar 5 and the flat surface 4b of the external terminal 4 are welded.
  • a part of the melted inner side surface portion 8 a flows toward the inside of the through hole 8.
  • the connecting portion 7 of the bus bar 5 and the external terminal 4 are welded by the welding device 20
  • the bus bar 5 is electrically and mechanically connected to the external terminal 4 of the battery cell 1.
  • the plurality of battery cells 1,... Electrically connected via the bus bar 5 are accommodated in the housing 10. Thereby, a large capacity battery (battery module) is completed.
  • the external terminal 4 side portion of the inner side surface portion 8a provided in the connection portion 7 of the bus bar 5 and the external terminal 4 are welded.
  • heat amount for welding becomes small. Therefore, the thermal damage of the external terminal 4 can be reduced, and as a result, the thermal damage of the electrode body which is an internal structure can be reduced.
  • the external terminal 4 can also be prevented from being thermally deformed, it is possible to prevent a decrease in sealing performance inside the battery cell 1 due to deformation of the external terminal 4.
  • the entire circumference (or part of the circumferential direction) of the inner side surface portion 8a and the external terminal 4 are welded. Thereby, the bus bar 5 and the external terminal 4 are reliably connected electrically and mechanically.
  • the power storage device and the welding method according to the present invention are not limited to the above-described embodiments, and various changes can be made without departing from the scope of the present invention. Moreover, it is needless to say that configurations, methods, and the like according to various modifications described below may be arbitrarily selected and employed in the configurations, methods, and the like according to the above-described embodiments.
  • a portion of the inner side surface portion 8 a that defines the through hole 8 that overlaps the shaft portion 4 a in the axial direction of the shaft portion 4 a of the external terminal 4 is welded to the external terminal 4.
  • the inner side surface portion 8a that defines the through hole 8 extends from the shaft portion 4a of the external terminal 4 to the shaft portion 4a. It may be welded to a place separated in a direction intersecting the axis.
  • the through hole 8 is arranged at a position overlapping in the axial direction with respect to a position away from the shaft portion 4 a in the external terminal 4 in the direction intersecting the axis of the shaft portion 4 a. May be. According to such a configuration, thermal damage to the shaft portion 4a can be prevented, and thus thermal damage to the electrode body that is the internal structure can be prevented.
  • the through holes 8 and 8 shown in FIG. 9 are arranged so as to sandwich the shaft portion 4 a in the short direction of the bus bar 5.
  • the through-hole 8 shown in FIG. 10 is separated from the shaft portion 4 a by being disposed closer to the center portion in the longitudinal direction of the bus bar 5.
  • the shaft portion 4a and the plate-like body 4c fitted to the shaft portion 4a are constituted by different members.
  • the shaft portion 4a is made of, for example, copper
  • the plate-like body 4c is made of, for example, an aluminum-based metal material such as aluminum or an aluminum alloy.
  • the plurality of battery cells 1 of the above embodiment are arranged in parallel so as to be arranged in the short direction of the cover plate 2b
  • the present invention is not limited to this configuration.
  • the plurality of battery cells 1,... May be arranged in parallel so as to be aligned in the longitudinal direction of the cover plate 2b.
  • the positive external terminal 4 disposed at one end in the longitudinal direction of the cover plate 2b and the negative external terminal 4 disposed at the other end in the longitudinal direction of the cover plate 2b are the positive electrodes.
  • the welding head 21 is configured to move (shake the neck), but the configuration is not limited to this.
  • the mirror may be configured to change the optical axis of the laser beam L emitted from the welding head 21, and the workpiece (power storage element) may move relative to the welding head 21 that is fixed.
  • the laser beam L is irradiated so that the optical axis of the laser beam L emitted from the welding head 21 intersects the flat surface 4b of the external terminal 4 in an inclined state.
  • the laser beam L is irradiated to the inner side surface portion 8 a so that the optical axis of the laser beam L is inclined with respect to the inner side surface portion 8 a of the through hole 8.
  • the inner side surface portion 8 a that defines the through hole 8 is arranged to be inclined with respect to the flat surface 5 a of the bus bar 5.
  • the optical axis of the laser beam L is directed to the inner side surface portion 8a. You may irradiate the laser beam L so that it may incline.
  • the external terminal 4 and the bus bar 5 of the said embodiment are comprised with the aluminum-type metal material, it is not limited to this.
  • the external terminal 4 and the bus bar 5 may be a metal material (including an alloy) such as copper, SUS, or steel. That is, the external terminals 4 and the bus bars 5 may be metal materials that are conductive and can be welded to each other.
  • the bus bar 5 and the external terminal 4 of the battery cell 1 are connected by laser welding, but the present invention is not limited to this.
  • the bus bar 5 and the external terminal 4 may be connected by general arc welding, gas welding, or the like.
  • the present invention can also be applied to various secondary batteries, other primary batteries, and capacitors such as electric double layer capacitors.
  • the type and size (capacity) of the battery are arbitrary.
  • SYMBOLS 1 Battery cell (electric storage element), 2 ... Case, 2a ... Case main body, 2b ... Cover body, 3 ... External gasket, 4 ... External terminal, 4a ... Shaft part, 4b ... Flat surface, 4c ... Plate-shaped body, 5 ... Bus bar, 5A ... Bus bar (for external connection), 5a ... Flat surface, 6 ... Body part, 7 ... Connection part, 8 ... Through hole, 8a ... Inside surface part, 10 ... Housing, 20 ... Welding device, 21 ... Welding Head, L ... Laser light

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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)
  • Connection Of Batteries Or Terminals (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

La présente invention porte sur un dispositif de stockage d'électricité qui est pourvu : d'un élément de stockage d'électricité qui possède une borne externe ; d'une barre omnibus qui présente une partie de connexion et qui est connectée à la borne externe au moyen de la partie de connexion. La partie de connexion de la barre omnibus présente un trou traversant, et la surface intérieure qui définit le trou traversant est soudée à la borne externe.
PCT/JP2013/071763 2012-09-27 2013-08-12 Dispositif de stockage d'électricité et procédé de soudage WO2014050330A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014538267A JP6258858B2 (ja) 2012-09-27 2013-08-12 蓄電装置及び溶接方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-214065 2012-09-27
JP2012214065 2012-09-27

Publications (1)

Publication Number Publication Date
WO2014050330A1 true WO2014050330A1 (fr) 2014-04-03

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JP (1) JP6258858B2 (fr)
WO (1) WO2014050330A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008270033A (ja) * 2007-04-23 2008-11-06 Toshiba Corp 電池モジュール及び電池モジュールの接続方法
JP2009087735A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 端子間接続装置
JP2009277605A (ja) * 2008-05-16 2009-11-26 Eliiy Power Co Ltd 電池モジュール
JP2012043714A (ja) * 2010-08-20 2012-03-01 Toshiba Corp 溶接方法、電池並びに組電池の製造方法、および、電池
WO2012120774A1 (fr) * 2011-03-10 2012-09-13 三洋電機株式会社 Bloc de batterie et procédé de connexion des cellules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9105911B2 (en) * 2009-12-28 2015-08-11 Samsung Sdi Co., Ltd. Battery module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008270033A (ja) * 2007-04-23 2008-11-06 Toshiba Corp 電池モジュール及び電池モジュールの接続方法
JP2009087735A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 端子間接続装置
JP2009277605A (ja) * 2008-05-16 2009-11-26 Eliiy Power Co Ltd 電池モジュール
JP2012043714A (ja) * 2010-08-20 2012-03-01 Toshiba Corp 溶接方法、電池並びに組電池の製造方法、および、電池
WO2012120774A1 (fr) * 2011-03-10 2012-09-13 三洋電機株式会社 Bloc de batterie et procédé de connexion des cellules

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JP6258858B2 (ja) 2018-01-10

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