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WO2013018552A1 - Batterie - Google Patents

Batterie Download PDF

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Publication number
WO2013018552A1
WO2013018552A1 PCT/JP2012/068318 JP2012068318W WO2013018552A1 WO 2013018552 A1 WO2013018552 A1 WO 2013018552A1 JP 2012068318 W JP2012068318 W JP 2012068318W WO 2013018552 A1 WO2013018552 A1 WO 2013018552A1
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WO
WIPO (PCT)
Prior art keywords
terminal
electrode terminal
negative electrode
positive electrode
positive
Prior art date
Application number
PCT/JP2012/068318
Other languages
English (en)
Japanese (ja)
Inventor
阿部一博
Original Assignee
株式会社村田製作所
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 株式会社村田製作所 filed Critical 株式会社村田製作所
Publication of WO2013018552A1 publication Critical patent/WO2013018552A1/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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 such as a lithium ion secondary battery, and more specifically, a battery element formed by laminating a positive electrode member and a negative electrode member via a separator is housed in an exterior body, and the positive electrode member
  • the present invention relates to a battery having a structure in which a positive electrode terminal that conducts and a negative electrode terminal that conducts electricity to a negative electrode member are drawn out of the exterior body.
  • secondary batteries represented by lithium ion secondary batteries have been widely used as power sources for portable electronic devices such as mobile phones and portable personal computers.
  • electric vehicles and hybrid vehicles have been developed and put into practical use, and the demand for secondary batteries such as lithium ion secondary batteries is increasing as large-scale applications.
  • a secondary battery (hereinafter, also simply referred to as “battery”), as shown in FIG. 9, a plurality of positive electrode members and negative electrode members are laminated via a separator (or flattened after winding).
  • the electrode group 102 thus formed is housed together with the electrolyte in the outer case 101 that seals the periphery of the laminated sheet that has been laminated, and the positive electrode terminal 103 that is connected to the positive electrode member, and the negative electrode that is connected to the negative electrode member
  • the terminal 104 has a structure drawn out from the outer case 101, and is arranged so as to surround the electrode group 102 as electrode group fixing means for preventing movement of the electrode group 102 in the outer case 101.
  • a battery including a protective frame 105 that is provided and housed in the outer case 101 together with the electrode group 102 (see Patent Document 1).
  • the protective frame 105 is provided so as to protrude outward from both side edges of one side of the frame portions 106 and 107 and the frame portions 106 and 107 attached to cover the peripheral edge of the electrode group 102 having a rectangular outer shape.
  • the configuration includes a joint 108 between the positive electrode terminal 103 and the positive electrode member, and a pair of protective pieces 110 and 111 covering the joint 109 between the negative electrode terminal 104 and the negative electrode member from both sides.
  • the protective frame is merely disposed so as to surround the electrode group, and means for particularly firmly bonding between the protective frame and the outer case (laminate film). Is not taken.
  • the internal electrode group is not fixed at a predetermined position of the device, so external stress such as vibration and impact is applied.
  • the positional relationship between the positive electrode terminal or the negative electrode terminal and the internal electrode group may fluctuate, and there may be a problem such as deformation or breakage in a connection portion between the positive and negative electrode terminals and the positive and negative electrode members.
  • the present invention solves the above-mentioned problem. Even when a large stress is applied to the positive electrode member and the negative electrode terminal that are electrically connected to the positive electrode member and the negative electrode member accommodated in the outer package made of a laminate sheet, for example, the positive and negative electrodes It is an object of the present invention to provide a highly reliable battery that does not cause a problem in a connection portion that connects a member and positive and negative terminals.
  • the battery of the present invention (Claim 1)
  • a battery element including a laminate and an electrolyte that are laminated so that a positive electrode member and a negative electrode member face each other with a separator interposed therebetween is housed in an exterior body made of a laminate sheet, and is electrically connected to the positive electrode member.
  • a terminal holding member having a positive terminal fixing portion to which the positive terminal is fixed and a negative terminal fixing portion to which the negative terminal is fixed is housed inside the exterior body, and the positive terminal fixing of the terminal holding member. The positive terminal is fixed to the part, and the negative terminal is fixed to the negative terminal fixing part.
  • the positive electrode terminal fixing portion to which the positive electrode terminal is fixed and the negative electrode terminal fixing portion to which the negative electrode terminal is fixed are connected to the positive electrode terminal and a part of the negative electrode terminal or screwed together. It is preferable to be fixed to the terminal and the negative terminal.
  • the exterior body is formed by arranging a laminate sheet having an adhesive layer made of a resin so that the adhesive layers face each other and joining peripheral edges.
  • the positive terminal fixing portion to which the positive terminal is fixed and the negative terminal fixing portion to which the negative terminal is fixed are held and fixed to the joint portion of the outer package. Is preferred.
  • the said terminal holding member is formed from the resin material.
  • the constituent material of the end holding member it is also possible to use a material that does not cause a short circuit between the positive electrode terminal and the negative electrode terminal, for example, a resin material coated on the surface of a metal material.
  • a terminal holding member including a positive electrode terminal fixing portion to which the positive electrode terminal is fixed and a negative electrode terminal fixing portion to which the negative electrode terminal is fixed is housed in the exterior body.
  • the positive terminal is fixed to the positive terminal fixing part of the terminal holding member, and the negative terminal is fixed to the negative terminal fixing part, so that the relative position between the positive terminal and the negative terminal is held constant.
  • the holding member takes over the stress, and the exterior body and the connection part between the battery element inside the positive electrode terminal and the negative electrode terminal (for example, a foil-shaped collector) It is possible to suppress or prevent stress from being applied to the electric body. As a result, a highly reliable battery can be obtained.
  • the positive electrode terminal fixing portion to which the positive electrode terminal is fixed and the negative electrode terminal fixing portion to which the negative electrode terminal is fixed of the terminal holding member by engaging or screwing with a part of the positive electrode terminal and the negative electrode terminal By fixing to the positive electrode terminal and the negative electrode terminal, the terminal holding member and the positive electrode terminal and the negative electrode terminal are firmly fixed, and the relative positions of the positive electrode terminal and the negative electrode terminal are more reliably held constant, and further reliable. It becomes possible to obtain a high-performance battery.
  • the terminal fixing portion to which the positive electrode terminal is fixed and the negative electrode terminal fixing portion to which the negative electrode terminal is fixed are held and fixed to the joint portion of the exterior body of the terminal holding member, the terminal is held. Since the member is more firmly integrated with the exterior body, a battery with higher reliability can be obtained.
  • fixed part of a terminal holding member can be more securely held and fixed to the joint portion of the exterior body, and the present invention can be further effectively realized.
  • FIG. 1 It is front sectional drawing which shows the battery concerning one Example (Example 1) of this invention. It is a top view of the battery of FIG. It is a figure which shows the terminal holding member used in the battery of FIG. 1, Comprising: (a) is a front view, (b) is a top view. (A) is a top view which shows the positive electrode terminal which comprises the battery of FIG. 1, (b) is a front view. (A) is a top view which shows the negative electrode terminal which comprises the battery of FIG. 1, (b) is a front view. It is a figure which shows the structure of the laminate sheet used for the exterior body of the battery concerning Example 1 of this invention. It is front sectional drawing which shows the battery concerning the other Example (Example 2) of this invention. (A) is an expanded view which shows the other example of the terminal holding member used for the battery of this invention, (b) is a side view which shows the terminal holding member after performing a bending process. It is a perspective view which shows the structure of the conventional battery.
  • FIG. 1 is a front sectional view showing a battery (lithium ion secondary battery) (unit battery) according to one embodiment (Example 1) of the present invention
  • FIG. 2 is a plan view.
  • the battery (lithium ion secondary battery) (unit battery) 1 of Example 1 includes a laminate 11a formed by laminating a positive electrode member and a negative electrode member so as to face each other via a separator, and an electrolyte (not shown). ) And the like, and a positive electrode terminal 12 and a negative electrode terminal electrically connected to a positive electrode member and a negative electrode member (not shown) of the battery element 11 via current collectors (current collector foils) 19, respectively.
  • 13 and the outer casing 10 having a substantially rectangular plane shape that accommodates the battery element 11, and the positive electrode terminal 12 and the negative electrode terminal 13 are drawn out from two opposite sides of the outer casing 10. Yes.
  • the battery 1 includes a terminal holding unit provided with a positive terminal fixing part 22 to which the positive terminal 12 is fixed and a negative terminal fixing part 23 to which the negative terminal 13 is fixed.
  • a member 24 is provided.
  • Example 1 a terminal holding member made of a plate material made of polypropylene and having a thickness of 1 mm is used as the terminal holding member 24. As shown in FIGS. 3A and 3B, the terminal holding member 24 has three protrusions 22 a as the positive terminal fixing part 22, and three protrusions as the negative terminal fixing part 23. 23a is formed.
  • the positive electrode terminal 12 is formed with three through holes 12 a that engage with the three protrusions 22 a of the positive electrode terminal fixing portion 22.
  • the terminal 13 is formed with three through holes 13 a that engage with the three protrusions 23 a of the negative terminal fixing portion 23.
  • the through hole 12a of the positive terminal 12 is engaged with the protrusion 22a of the positive terminal fixing part 22 of the terminal holding member 24, and the through hole 13a of the negative terminal 13 is engaged with the protrusion 23a of the negative terminal fixing part 23 of the terminal holding member 24. Is engaged, the positive electrode terminal 12, the negative electrode terminal 13, and the terminal holding member 24 are fixed, and the relative positions of the positive electrode terminal 12 and the negative electrode terminal 13 are held constant.
  • the outer package 10 includes an outer protective layer 15 made of a resin (polyamide resin in this embodiment 1) and an intermediate gas barrier layer 16 made of a metal (aluminum in this embodiment 1). And a pair of laminate sheets 14 (14a, 14b) formed by laminating and integrating an inner adhesive layer 17 made of a resin (polypropylene resin in this embodiment 1). That is, the exterior body 10 is arranged such that a pair of laminate sheets 14 (14a, 14b) are disposed so that the adhesive layers 17 face each other, and then the peripheral portions of the pair of laminate sheets 14 (14a, 14b) are thermally welded. And are joined together.
  • the bonding portion 18 in which the adhesive layers 17 of the laminate sheet 14 (14a, 14b) are heat-welded has strong adhesive strength, and is left for a long time (for example, 60 ° C. 90% RH, 3000 hours) under high temperature and high humidity. However, since the adhesive strength does not decrease, high bonding reliability can be obtained.
  • the laminate sheet 14 (14a, 14b) is not limited to the one having the above configuration, and the adhesive layer 17 may be, for example, a mixed material of polypropylene and polyethylene.
  • the positive terminal 12 and the negative terminal 13 are drawn out from the joint 18.
  • a sealant for example, polypropylene
  • the positive electrode terminal fixing portion 22 of the terminal holding member 24 to which the positive electrode terminal 12 is fixed is held and fixed to the joint portion 18 of the outer package 10 together with the positive electrode terminal 12.
  • the negative electrode terminal fixing portion 23 to which is fixed is held and fixed together with the negative electrode terminal 13 at the joint portion 18 of the outer package 10. Since the end holding member 24 is made of polypropylene resin, the end holding member 24 is firmly bonded to the adhesive layer 17 of the laminate sheet 14 and is securely bonded to the exterior body 10. However, in the present invention, the end holding member 24 is not directly held and fixed to the outer package 10, but is indirectly held and fixed to the outer package 10 via the positive electrode terminal 12 and the negative electrode terminal 13. It is also possible.
  • a laminate 11a formed by laminating a positive electrode member and a negative electrode member so as to face each other with a separator therebetween, and an electrolytic solution (not shown) are prepared.
  • a laminate sheet 14 (14a, 14b) is prepared for forming the outer package 10 that houses the battery element 11 including the laminate 11a and the electrolytic solution.
  • a terminal holding member 24 including a positive terminal fixing part 22 to which the positive terminal 12 is fixed and a negative terminal fixing part 23 to which the negative terminal 13 is fixed is prepared.
  • the laminate 11a, the positive electrode terminal 12, and the negative electrode terminal 13 are connected to the positive electrode so as to be positioned in the accommodation space formed by the pair of laminate sheets 14 (14a, 14b).
  • the terminal holding member 24 engaged with the terminal fixing portion 22 and the negative terminal fixing portion 23 is disposed at a predetermined position.
  • the peripheral portions (four sides) of the laminate sheet 14 (14a, 14b) are thermally welded leaving a part, and then an appropriate amount of the peripheral portion of the outer package 10 from the unwelded portion to the inside of the outer package 10.
  • the exterior body 10 is sealed by injecting an electrolytic solution and completely welding the peripheral edge of the exterior body 10 while vacuuming. Thereby, the battery 1 having a structure as shown in FIG. 1 is obtained.
  • the welded portion 18 of the laminate sheet 14 (14a, 14b) constituting the outer package 10 is provided.
  • the adhesive layer 17 of the laminate sheet 14 and the sealant are bonded to the positive electrode terminal 12 with a sealant (for example, a tape-like member made of polypropylene resin) interposed between the positive electrode terminal 12 and the negative electrode terminal 13. Further, as described above, it is also possible to constitute so as to be welded integrally with the negative electrode terminal 13.
  • the positive terminal 12 is fixed to the positive terminal fixing part 22 of the terminal holding member 24 accommodated in the exterior body 10, and the negative terminal 13 is fixed to the negative terminal fixing part 23.
  • the terminal holding member 24 takes over the stress.
  • it is possible to suppress and prevent the stress from being applied to the exterior body 10, the battery element 11 in the interior, and the connection portion (for example, the current collector (foil) 19) between the positive electrode terminal 12 and the negative electrode terminal 13. it can. As a result, a highly reliable battery can be obtained.
  • the stress applied to the positive electrode terminal and the negative electrode terminal is assumed by the exterior body, the electrode group (positive and negative electrode members) and the current collector (current collector foil) constituting the battery element.
  • the exterior body, the electrode group (positive and negative electrode members) and the current collector (current collector foil) constituting the battery element.
  • the electrode group (positive and negative electrode members) and the current collector constituting the battery element.
  • the exterior body, the electrode group (positive and negative electrode members), the current collector and the like resistant to stress deformation, but increase the thickness of the laminate sheet constituting the exterior body to improve the strength. In such a case, there is a problem that sealing of the exterior body becomes difficult or non-uniform.
  • the terminal holding member 24 is provided as in the present invention, even when stress is applied to the positive terminal 12 and / or the negative terminal 13, the stress is applied to the end holding member 24. It is possible to suppress and prevent the exterior body 10 and the current collector (foil) 19 from being damaged, which is meaningful. Further, in obtaining a battery having the configuration of the present invention, it is not necessary to change other components and the design is easy.
  • FIG. 7 is a front sectional view showing the structure of a battery according to another embodiment (Example 2) of the present invention.
  • the same two terminal holding members 24 as those used in the first embodiment are used. That is, in the battery of the second embodiment, the terminal holding members 24 are disposed on both the upper and lower sides of the battery element 11 so as to sandwich the battery element 11.
  • the terminal holding member 24 is configured so that the protrusions 22a and 23a functioning as the positive electrode terminal fixing portion 22 and the negative electrode terminal fixing portion 23 are engaged with the through hole 12a of the positive electrode terminal 12 and the through hole 13a of the negative electrode terminal 13.
  • the surfaces on which the protrusions 22a and 23a are formed are disposed so as to face each other.
  • a pair of terminal holding member 24 is comprised so that the through-hole 12a of the positive electrode terminal 12 and the through-hole 13a of the negative electrode terminal 13 may be engaged from the up-and-down both surfaces side in the state which the both ends side bent.
  • the pair of end holding members 24 can be formed in a curved shape as shown in FIG. In FIG. 7, the parts denoted by the same reference numerals as those in FIG. 1 indicate the same or corresponding parts.
  • the two terminal holding members 24 are arranged so as to sandwich the battery element 11, and the protrusions 22 a and 23 a functioning as the positive terminal fixing part 22 and the negative terminal fixing part 23 are Engaging with the through hole 12a of the positive terminal 12 and the through hole 13a of the negative terminal 13, the relative positions of the positive terminal 12 and the negative terminal 13 are held constant, and the battery element 11 also has two terminal holding members 24. And is securely held between them.
  • the effect that the displacement of the battery element 11 in the exterior body 10 can be more reliably prevented can be obtained.
  • a battery with higher reliability can be obtained.
  • FIG. 8A and 8B are diagrams showing a modification of the terminal holding member 24.
  • FIG. The terminal holding member 24 is formed into a box shape (that is, a thin cylindrical shape) having both ends opened by bending, and a region 24a in FIG. 24b becomes the other main surface portion (see FIG. 8B), and the band-like region 24c in the center in the vertical direction in FIG. 8A and the belt-like regions 24d and 24e on both ends in the vertical direction in FIG. Is a side wall (see FIG. 8B).
  • the specific configuration and details of the shape of the terminal holding member are not limited to the above-described embodiments and modifications, and various configurations such as a frame-shaped structure can be used. It is.
  • fixed part of a terminal holding member are protrusions, and it is comprised so that it may engage with the through-hole formed in the positive electrode terminal and the negative electrode terminal.
  • the positive electrode terminal fixing portion and the negative electrode terminal fixing portion of the terminal holding member are configured as through holes or bottomed holes, and protrusions are formed on the positive electrode terminal and the negative electrode terminal, and both are engaged and fixed. It is also possible to configure as described above.
  • the present invention is not limited to the above embodiment in other points as well, and relates to a specific shape of the terminal holding member and its constituent material, a specific configuration of the battery element, a specific shape of the exterior body, and the like. Various applications and modifications can be made within the scope of the invention.

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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)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

La présente invention concerne une batterie possédant une fiabilité élevée dans laquelle des dysfonctionnements ne surviennent pas dans, par exemple, des parties de connexion qui connectent un élément d'électrode positive/négative à une borne d'électrode positive/négative, même lorsqu'une grande contrainte est appliquée à la borne d'électrode positive et à la borne d'électrode négative qui se connectent à l'élément d'électrode positive et un élément d'électrode négative installés à l'intérieur d'un boîtier externe formé d'une feuille stratifiée. Une batterie (1) possède une structure dans laquelle un élément de batterie (11) est installé à l'intérieur d'un boîtier externe (10) formé d'une feuille stratifiée (14 (14a, 14b)) et une borne d'électrode positive (12) connectée à l'élément d'électrode positive et une borne d'électrode négative (13) connectée à l'élément d'électrode négative, ces éléments d'électrodes constituant l'élément de batterie (11), sont extraits hors du boîtier extérieur. Dans la batterie (1), un élément de support de bornes (24) doté d'une partie de fixation de borne d'électrode positive (22) à laquelle est fixée la borne d'électrode positive et d'une partie de fixation de borne d'électrode négative (23) à laquelle est fixée la borne d'électrode négative est installé à l'intérieur du boîtier externe (10), et la borne d'électrode positive est fixée à la partie de fixation de borne d'électrode positive de l'élément de support de bornes et la borne d'électrode négative est fixée à la partie de fixation de la borne d'électrode négative pour maintenir constantes les positions relatives de la borne d'électrode positive et de la borne d'électrode négative.
PCT/JP2012/068318 2011-08-01 2012-07-19 Batterie WO2013018552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-168500 2011-08-01
JP2011168500 2011-08-01

Publications (1)

Publication Number Publication Date
WO2013018552A1 true WO2013018552A1 (fr) 2013-02-07

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WO (1) WO2013018552A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3731295A1 (fr) * 2019-04-26 2020-10-28 Toyota Jidosha Kabushiki Kaisha Batterie secondaire
KR20200125495A (ko) * 2019-04-26 2020-11-04 도요타 지도샤（주） 이차 전지

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH1126653A (ja) * 1997-07-03 1999-01-29 Asahi Chem Ind Co Ltd デバイス樹脂封止体
JP2002237287A (ja) * 2001-02-07 2002-08-23 Toshiba Corp ラミネート形電池と、その製造方法
JP2004006226A (ja) * 2002-04-17 2004-01-08 Hitachi Maxell Ltd 電池
JP2004047173A (ja) * 2002-07-09 2004-02-12 Nissan Motor Co Ltd 積層型電池の外装ケース
JP2004063278A (ja) * 2002-07-29 2004-02-26 Nissan Motor Co Ltd ラミネート外装扁平型電池
JP2011119213A (ja) * 2009-12-01 2011-06-16 Samsung Sdi Co Ltd 二次電池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1126653A (ja) * 1997-07-03 1999-01-29 Asahi Chem Ind Co Ltd デバイス樹脂封止体
JP2002237287A (ja) * 2001-02-07 2002-08-23 Toshiba Corp ラミネート形電池と、その製造方法
JP2004006226A (ja) * 2002-04-17 2004-01-08 Hitachi Maxell Ltd 電池
JP2004047173A (ja) * 2002-07-09 2004-02-12 Nissan Motor Co Ltd 積層型電池の外装ケース
JP2004063278A (ja) * 2002-07-29 2004-02-26 Nissan Motor Co Ltd ラミネート外装扁平型電池
JP2011119213A (ja) * 2009-12-01 2011-06-16 Samsung Sdi Co Ltd 二次電池

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3731295A1 (fr) * 2019-04-26 2020-10-28 Toyota Jidosha Kabushiki Kaisha Batterie secondaire
CN111864175A (zh) * 2019-04-26 2020-10-30 丰田自动车株式会社 二次电池
KR20200125495A (ko) * 2019-04-26 2020-11-04 도요타 지도샤（주） 이차 전지
JP2020184518A (ja) * 2019-04-26 2020-11-12 トヨタ自動車株式会社 二次電池
US11355802B2 (en) 2019-04-26 2022-06-07 Toyota Jidosha Kabushiki Kaisha Secondary battery having improved manufacturability and performance
KR102407634B1 (ko) * 2019-04-26 2022-06-10 도요타 지도샤（주） 이차 전지
CN111864175B (zh) * 2019-04-26 2022-10-28 丰田自动车株式会社 二次电池
JP7265715B2 (ja) 2019-04-26 2023-04-27 トヨタ自動車株式会社 二次電池

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