WO2013018551A1 - Batterie - Google Patents

Batterie Download PDF

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Publication number
WO2013018551A1
WO2013018551A1 PCT/JP2012/068311 JP2012068311W WO2013018551A1 WO 2013018551 A1 WO2013018551 A1 WO 2013018551A1 JP 2012068311 W JP2012068311 W JP 2012068311W WO 2013018551 A1 WO2013018551 A1 WO 2013018551A1
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WO
WIPO (PCT)
Prior art keywords
electrode tab
positive electrode
negative electrode
tab
current collector
Prior art date
Application number
PCT/JP2012/068311
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English (en)
Japanese (ja)
Inventor
阿部一博
玉谷康浩
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 WO2013018551A1 publication Critical patent/WO2013018551A1/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
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • 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, for example, a battery such as a lithium ion secondary battery, and more specifically, a power generation element formed by laminating a positive electrode layer and a negative electrode layer via a separator is housed in an exterior body and is used for current collection
  • the present invention relates to a battery having a structure in which a positive electrode tab that is electrically connected to a positive electrode layer and a negative electrode tab that is electrically connected to a negative electrode layer are drawn out of an exterior body through the electrode lead.
  • 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.
  • a laminated body in which a plurality of positive electrode members and negative electrode members are laminated via a separator is housed in an exterior body (housing).
  • the thing of the structure which consists of is widely used.
  • the power generation element 111 having the separator 111C interposed between the positive electrode layer (positive electrode plate) 111A and the negative electrode layer (negative electrode plate) 111B of the battery 110 is sandwiched and covered by the laminate films 112 and 113 from both sides.
  • the peripheral part is joined and sealed by heat welding.
  • a current collecting electrode lead (current collector) 111D, 111E is connected to the positive electrode layer 111A and the negative electrode layer 111B, respectively, and the other end of the electrode lead 111D, 111E is connected to the positive electrode tab 114 and the negative electrode tab 115, respectively.
  • the leading end portions of the positive electrode tab 114 and the negative electrode tab 115 of the battery 110 drawn out from the joint portions 116 with the laminate films 112 and 113 are connected to bus bars 117 and 118 (external circuits). Between the connecting portions P1 and P2 of the positive electrode tab 114 and the negative electrode tab 115 and the bus bars 117 and 118 to the connecting portions Q1 and Q2 of the electrode leads 111D and 111E, a convex portion 120 serving as a vibration absorbing portion is provided.
  • Such a battery 110 is formed of a low-strength material such as a thin metal foil because vibrations transmitted from the bus bars 117 and 118 to the positive electrode tab and the negative electrode tab are absorbed by the vibration absorption part (convex part 120). It is said that it is possible to suppress and prevent the vibration from being input to the electrode lead and to prevent mechanical damage inside the battery such as breakage of the electrode lead.
  • the present invention solves the above-mentioned problem, even when a large stress is applied to the positive electrode tab and the negative electrode tab that are electrically connected to the positive electrode layer (positive electrode plate) and the negative electrode layer (negative electrode plate) through the current collector, Providing a highly reliable battery that can reliably prevent the occurrence of breakage and the occurrence of short-circuits in each current collector, and the connection between the current collector and the positive electrode tab and the negative electrode tab and the current collector. Objective.
  • the battery of the present invention (Claim 1)
  • a negative electrode tab connected to the negative electrode layer through a negative electrode current collector is a battery having a structure drawn out of the exterior body, When a predetermined stress or more is applied to the positive electrode tab and / or the negative electrode tab, the positive electrode current collector, the negative electrode current collector, a connection portion between the positive electrode current collector and the positive electrode tab, and the negative electrode current collector An area to be broken having a strength that breaks before any of the connecting portions between the electric body and the negative electrode tab is provided in a predetermined area located outside the exterior body of the positive electrode tab and the negative electrode tab. It is characterized by being.
  • the positive electrode tab and the planned fracture region of the positive electrode tab may be a joint portion that joins the members constituting the positive electrode tab and the members constituting the negative electrode tab. preferable.
  • the rupture-scheduled regions of the positive electrode tab and the negative electrode tab are subjected to predetermined processing on the positive electrode tab and the negative electrode tab, and the strength is made smaller than portions other than the rupture-scheduled region. A region is preferred.
  • the processing is preferably processing in which at least one selected from the group consisting of a through hole, a bottomed hole, a groove, and a notch is provided on the positive electrode tab and the negative electrode tab.
  • the positive electrode tab and the negative electrode tab include a curved portion, and the planned fracture region is provided in the curved portion.
  • the battery of the present invention (invention 1) is a positive electrode tab and / or a negative electrode tab when a positive electrode tab and / or a negative electrode tab are subjected to a stress greater than or equal to a predetermined value in a predetermined region located outside the exterior body.
  • An area to be ruptured having a strength that breaks before any of the connecting portion between the electric current collector, the negative electrode current collector, the positive electrode current collector and the positive electrode tab, and the connecting portion between the negative electrode current collector and the negative electrode tab is provided.
  • a large stress is applied to the positive electrode tab and the negative electrode tab by setting the joint portion where the members constituting the positive electrode tab and the members constituting the negative electrode tab are joined to each other as a planned fracture region.
  • the joint portion is peeled to form a fracture region. Therefore, it is possible to easily and reliably provide a planned fracture region that breaks earlier than other regions, and the present invention can be effectively realized.
  • the region to be broken can be easily and reliably formed by setting a region in which the strength to be broken by processing the cathode tab and the anode tab is reduced.
  • breaking strength is reduced by applying at least one type selected from the group consisting of a through hole, a bottomed hole, a groove, and a notch to the positive electrode tab and the negative electrode tab as in claim 4,
  • a region that breaks before the region can be easily and reliably formed, which is preferable.
  • the positive electrode tab and the negative electrode tab are provided with a curved portion and a planned fracture region is provided in the curved portion, the vibration applied to the positive electrode tab and the negative electrode tab from the outside is provided. It is possible to fulfill the function of absorbing stress and stress, and when greater stress is applied to the positive electrode tab and negative electrode tab, the planned fracture area provided in the curved part breaks before other parts. Thus, it is possible to provide a more reliable battery without increasing the size of the product.
  • FIG. 1 is a cross-sectional view showing a configuration of a battery according to one embodiment (Example 1) of the present invention (in this Example 1, a lithium ion secondary battery).
  • a battery (lithium ion secondary battery) 100 includes a power generation element 10, an exterior body 20 that houses and seals the power generation element 10, and a plurality of foil shapes.
  • the positive electrode tab (positive electrode terminal) 31 and the negative electrode tab (negative electrode terminal) 32 that are connected to the power generation element 10 through the positive electrode current collector 41a and the negative electrode current collector 41b and led out from the peripheral edge of the outer package 20 I have.
  • the power generation element 10 includes a plurality of positive electrode layers 11 having a positive electrode active material and a current collector, a plurality of negative electrode layers 12, a plurality of separators 13, and a non-aqueous electrolyte (electrolyte) 14. And the positive electrode layer 11 and the negative electrode layer 12 are alternately stacked via the separator 13 to form a stacked body 10a.
  • stacking aspect, etc. A various deformation
  • stacked and wound the positive electrode layer and the negative electrode layer so that it might mutually oppose through a separator is also contained.
  • Example 1 as the positive electrode layer 11, for example, a positive electrode compound containing LiCoO 2 as a positive electrode active material, polyvinylidene fluoride (PVDF) as a binder, and acetylene black as a conductive auxiliary agent.
  • a plate-like positive electrode layer formed by applying an agent on the surface of a positive electrode plate made of an aluminum foil and drying to dispose a positive electrode active material layer on the surface of the positive electrode plate is used.
  • the part which the surface of the aluminum foil exposed is provided in the edge part of the aluminum foil as a collector, without apply
  • the negative electrode layer 12 for example, a negative electrode mixture containing a graphite-based material as a negative electrode active material and polyvinylidene fluoride (PVDF) as a binder is applied on the surface of a negative electrode plate made of copper foil.
  • PVDF polyvinylidene fluoride
  • the part which the surface of copper foil exposed is provided in the edge part of copper foil as an electrical power collector, without apply
  • separator 13 a sheet-like separator made of a microporous polyethylene film is used.
  • the nonaqueous electrolyte solution 14 As an electrolyte, LiPF 6 was mixed with 1.0 mol / L of a non-aqueous solvent in which propylene carbonate, ethylene carbonate, and diethyl carbonate were mixed at a volume ratio of 5:25:70. What was melt
  • the non-aqueous solvent and the supporting salt are not limited to these, and materials used for conventional batteries can be used without limitation.
  • the electrolyte may be a gel or solid electrolyte.
  • the plurality of positive electrode layers 11 are connected to the positive electrode tab 31 via a plurality of positive electrode current collectors 41a, and the plurality of negative electrode layers 12 are also connected to the negative electrode tabs 32 via a plurality of negative electrode current collectors 41b. Yes.
  • the exterior body 20 is formed by joining the two upper and lower laminate sheets 20a and 20b to each other at the periphery thereof.
  • the laminate sheets 20a and 20b constituting the outer package 20 a laminate sheet in which an outer protective layer made of resin, an intermediate gas barrier layer made of aluminum, and an inner adhesive layer made of resin are laminated and integrated ( Aluminum laminate film) is used.
  • the kind of the laminate sheet used as the exterior body 20 is not limited to the aluminum laminate film as described above, and other configurations can be used in the same manner.
  • curved portions 31a and 32a are formed in predetermined regions of the positive electrode tab 31 and the negative electrode tab 32 located outside the exterior body 20, respectively, and the curved portion 31a.
  • 32a when a predetermined stress or more is applied to the positive electrode tab 31 and the negative electrode tab 32, the positive electrode current collector 41a, the negative electrode current collector 41b, or the connecting portion between the positive electrode current collector 41a and the positive electrode tab 31,
  • rupture-scheduled regions 31x and 32x having such strength that they break before any of the connecting portions between the negative electrode current collector 41b and the negative electrode tab 32.
  • the expected break region 31x of the positive electrode tab 31 is formed by joining the positive electrode tab constituting members 131a and 131b constituting the positive electrode tab 31, and the expected break region 32x of the negative electrode tab 32 is formed. Similarly, the negative electrode tab constituting members 132a and 132b constituting the negative electrode tab 32 are joined together.
  • the positive electrode tab 31 is composed of a pair of positive electrode tab components 131a and 131b
  • the negative electrode tab 32 is composed of a pair of negative electrode tab components 132a and 132b.
  • the negative electrode tab 32 may be composed of three or more tab constituent members.
  • the battery 100 of Example 1 is provided with the planned fracture regions 31x and 32x in the positive electrode tab 31 and the negative electrode tab 32, a large force was applied to the positive electrode tab 31 and the negative electrode tab 32.
  • the positive electrode current collector 41a, the negative electrode current collector 41b, the connection portion between the positive electrode current collector 41a and the positive electrode tab 31, and the connection portion between the negative electrode current collector 41b and the negative electrode tab 32 are broken before any of them.
  • the planned areas 31x and 32x are broken.
  • the positive electrode current collector 41a, the negative electrode current collector 41b, the connection portion between the positive electrode current collector 41a and the positive electrode tab 31, and the negative electrode current collector It is possible to prevent the connection portion between 41b and the negative electrode tab 32 from being broken, and to prevent an electrical short circuit between the positive electrode layer 11 and the negative electrode layer 12.
  • the joint part which joined the member (positive electrode tab structural member 131a, 131b) which comprises the positive electrode tab 31, and the member (negative electrode tab structural member 132a, 132b) which comprises the negative electrode tab is set to the fracture
  • the positive electrode tab 31 and the negative electrode tab 32 are provided with the curved portions 31a and 32a, and the curved portions 31a and 32a are provided with the planned fracture regions 31x and 32x.
  • a large stress is applied to the portions 31a and 32a in the function as a vibration absorbing portion that absorbs vibration transmitted from the outside to the positive electrode tab 31 and the negative electrode tab 32, and the planned fracture regions 31x and 32x provided in the curved portions 31a and 32a.
  • the positive electrode current collector 41a, the negative electrode current collector 41b, the connection portion between the positive electrode current collector 41a and the positive electrode tab 31, and the connection portion between the negative electrode current collector 41b and the negative electrode tab 32 are preceded. It is possible to provide a battery with high reliability without causing an increase in size of the positive electrode tab 31, the negative electrode tab 32, and the like.
  • FIG. 2 is a cross-sectional view showing a configuration of a battery according to another embodiment (Example 2) of the present invention
  • FIG. 3 is a plan view showing a main part thereof. 2 and 3, the same reference numerals as those in FIG. 1 denote the same or corresponding parts.
  • a plurality of through holes 50 are provided at predetermined intervals in the curved portions 31a and 32a of the positive electrode tab 31 and the negative electrode tab 32 so as to extend from one end side to the other end side in the width direction by laser processing.
  • the fracture planned areas 31x and 32x are formed in the curved portions 31a and 32a.
  • FIG. 3 shows a case where the through hole 50 is a hole having a circular planar shape.
  • the shape of the through hole is not particularly limited, and the planar shape may be, for example, a rectangular shape. There are no particular restrictions on the size and pitch of the through holes, and various applications and modifications can be made according to the required breaking strength.
  • the regions are assumed to be the regions to be broken 31x and 32x.
  • the expected fracture regions 31x and 32x can be broken before the connecting portion between the negative electrode current collector 41b and the negative electrode tab 32.
  • the positive electrode current collector 41a and the negative electrode current collector 41b can be broken.
  • connection between the positive electrode current collector 41a and the positive electrode tab 31 and the connection between the negative electrode current collector 41b and the negative electrode tab 32 are prevented from breaking, and the electrical connection between the positive electrode layer 11 and the negative electrode layer 12 is prevented.
  • Preventive short circuit It can be.
  • Example 2 the through holes 50 were formed in the curved portions 31a and 32a of the positive electrode tab 31 and the negative electrode tab 32 by laser processing to form the planned fracture regions 31x and 32x. It is also possible to form a narrow portion having a narrower width than other regions, and to make this narrow portion a planned fracture region.
  • FIG. 4 shows a state in which a narrow width portion 51 narrower than other regions is formed in a part of the negative electrode tab 32, and the narrow width portion 51 is set as a planned fracture region 32x.
  • the positive electrode tab is similarly provided with a narrow portion as a planned fracture region.
  • notches may be formed at both ends in the width direction of the positive electrode tab and the negative electrode tab.
  • FIG. 5 shows a state in which notches 52 are formed at both ends of the negative electrode tab 32 in the width direction, and a region where the notches 52 are formed is set as a planned fracture region 32x.
  • the positive electrode tab is also provided with a notch as a planned fracture region.
  • there are no particular restrictions on the shape and arrangement of the notches 52 and various shapes and arrangements that can reduce the breaking strength are possible. For example, it is also possible to form a notch part only in the one side of the positive electrode tab and the negative electrode tab in the width direction.
  • a thin portion having a thickness smaller than that of the other region in a part of the positive electrode tab and the negative electrode tab it is also possible to form a thin portion having a thickness smaller than that of the other region in a part of the positive electrode tab and the negative electrode tab, and to make this thin portion a planned fracture region.
  • 6 (a) and 6 (b) as a thin portion, a groove 53 extending from one end side to the other end side in the width direction of the negative electrode tab 32 is formed, and this groove (thin portion) 53 is defined as a planned fracture region 32x. Indicates the state.
  • the positive electrode tab is also provided with a thin portion as a planned fracture region.
  • the thin part should form a continuous groove or a discontinuous groove from one end side to the other end side in the width direction of the positive electrode tab and the negative electrode tab, or form a bottomed hole at a predetermined pitch. Can be formed.
  • the fracture regions 31x and 32x are formed in the curved portions 31a and 32a of the positive electrode tab 31 and the negative electrode tab 32.
  • the positive electrode tab and the negative electrode tab are provided. Since the basic effect can be obtained if the planned fracture region is provided, it is possible to adopt a configuration without the curved portion.
  • the positive electrode tab and the negative electrode tab are provided with a curved portion, it is possible to form a planned fracture region at a position other than the curved portion of the positive electrode tab and the negative electrode tab.
  • the present invention is not limited to the above embodiment, and a plurality of planned fracture regions and curved portions may be provided on one tab.

Abstract

La présente invention concerne une batterie présentant une fiabilité élevée qui peut sans aucun doute prévenir des occurrences de rupture dans des collecteurs de courant et des parties de connexion entre l'onglet de l'électrode positive et l'onglet de l'électrode négative et les collecteurs de courant, et des occurrences de courts-circuits provoqués par ceux-ci, même lorsqu'une importante contrainte est appliquée à l'onglet d'électrode positive connecté aux couches d'électrode positive par le biais des collecteurs de courant positif et à l'onglet d'électrode négative connecté aux couches d'électrode négative par le biais des collecteurs de courant négatif. Des régions de préparation de rupture (31x, 32x) possédant une résistance telle qu'elles se brisent avant les collecteurs de courant positif (41a), les collecteurs de courant négatif (41b), les parties de connexion entre les collecteurs de courant positif (41a) et l'onglet d'électrode positive (31), et les parties de connexion entre les collecteurs de courant négatif (41b) et l'onglet d'électrode négative (32), lorsqu'une contrainte prescrite ou une contrainte supérieure est appliquée à un onglet d'électrode positive (31) et un onglet d'électrode négative (32), sont formées dans une région prescrite de l'onglet d'électrode positive (31) et de l'onglet d'électrode négative (32) positionnée sur l'extérieur d'un boîtier externe (20).
PCT/JP2012/068311 2011-08-04 2012-07-19 Batterie WO2013018551A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011170781 2011-08-04
JP2011-170781 2011-08-04

Publications (1)

Publication Number Publication Date
WO2013018551A1 true WO2013018551A1 (fr) 2013-02-07

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN106784509A (zh) * 2017-03-10 2017-05-31 江苏索尔新能源科技股份有限公司 一种电芯纵向排布的电池组件
FR3056024A1 (fr) * 2016-09-13 2018-03-16 Peugeot Citroen Automobiles Sa Cellule de stockage d'energie electrique avec protection en cas d’echauffement
CN110600783A (zh) * 2019-08-06 2019-12-20 松栢投资有限公司 一种纽扣电池及制造方法
CN111755657A (zh) * 2019-03-29 2020-10-09 宁德新能源科技有限公司 电极组件
CN112310562A (zh) * 2020-04-03 2021-02-02 宁德时代新能源科技股份有限公司 电池模块、电池组、装置及失效处理方法
CN114243227A (zh) * 2021-12-02 2022-03-25 湖北省泰璞电子有限公司 一种可弯折且不损伤耐久度的可调式电池极耳
CN115249876A (zh) * 2021-04-27 2022-10-28 荣盛盟固利新能源科技有限公司 电池极耳及电池

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JP2006164752A (ja) * 2004-12-07 2006-06-22 Nissan Motor Co Ltd 電池構造体
JP2009535777A (ja) * 2006-05-01 2009-10-01 エルジー・ケム・リミテッド 過電流の印加の際に断線する自己切断部を備えた電極を有する二次電池
JP2011233385A (ja) * 2010-04-28 2011-11-17 Nissan Motor Co Ltd 扁平型電池

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Publication number Priority date Publication date Assignee Title
JP2004039274A (ja) * 2002-06-28 2004-02-05 Nissan Motor Co Ltd 積層型電池の電極タブ取出し部構造
JP2006164752A (ja) * 2004-12-07 2006-06-22 Nissan Motor Co Ltd 電池構造体
JP2009535777A (ja) * 2006-05-01 2009-10-01 エルジー・ケム・リミテッド 過電流の印加の際に断線する自己切断部を備えた電極を有する二次電池
JP2011233385A (ja) * 2010-04-28 2011-11-17 Nissan Motor Co Ltd 扁平型電池

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3056024A1 (fr) * 2016-09-13 2018-03-16 Peugeot Citroen Automobiles Sa Cellule de stockage d'energie electrique avec protection en cas d’echauffement
CN106784509A (zh) * 2017-03-10 2017-05-31 江苏索尔新能源科技股份有限公司 一种电芯纵向排布的电池组件
CN111755657A (zh) * 2019-03-29 2020-10-09 宁德新能源科技有限公司 电极组件
US11646473B2 (en) 2019-03-29 2023-05-09 Ningde Amperex Technology Limited Electrode assembly
CN110600783A (zh) * 2019-08-06 2019-12-20 松栢投资有限公司 一种纽扣电池及制造方法
CN110600783B (zh) * 2019-08-06 2022-07-05 松栢投资有限公司 一种纽扣电池及制造方法
CN112310562A (zh) * 2020-04-03 2021-02-02 宁德时代新能源科技股份有限公司 电池模块、电池组、装置及失效处理方法
CN115249876A (zh) * 2021-04-27 2022-10-28 荣盛盟固利新能源科技有限公司 电池极耳及电池
CN114243227A (zh) * 2021-12-02 2022-03-25 湖北省泰璞电子有限公司 一种可弯折且不损伤耐久度的可调式电池极耳
CN114243227B (zh) * 2021-12-02 2023-11-24 湖北省泰璞电子有限公司 一种可弯折且不损伤耐久度的可调式电池极耳

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