WO2009151007A1 - Procédé de fabrication de batteries étanches - Google Patents

Procédé de fabrication de batteries étanches Download PDF

Info

Publication number
WO2009151007A1
WO2009151007A1 PCT/JP2009/060340 JP2009060340W WO2009151007A1 WO 2009151007 A1 WO2009151007 A1 WO 2009151007A1 JP 2009060340 W JP2009060340 W JP 2009060340W WO 2009151007 A1 WO2009151007 A1 WO 2009151007A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum
plate
dissimilar metal
alloy
plate material
Prior art date
Application number
PCT/JP2009/060340
Other languages
English (en)
Japanese (ja)
Inventor
渡辺修
Original Assignee
日立マクセル株式会社
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 日立マクセル株式会社 filed Critical 日立マクセル株式会社
Publication of WO2009151007A1 publication Critical patent/WO2009151007A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • 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
    • H01M50/147—Lids or covers
    • H01M50/155—Lids or covers characterised by the material
    • H01M50/157—Inorganic material
    • H01M50/159—Metals
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • 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 method for producing a sealed battery comprising a battery can and a sealing plate made of aluminum or aluminum alloy that closes the opening of the battery can.
  • the battery case includes a battery can and a sealing plate that closes the opening of the battery can.
  • the sealing plate is formed of nickel or an alloy thereof, iron or an alloy thereof, copper or an alloy thereof, and external leads are connected to the sealing plate.
  • a different metal body formed of a different metal or a different metal alloy different from aluminum is integrated on the upper surface of the sealing plate made of aluminum or aluminum alloy. It has been proposed.
  • Patent Documents 1 to 3 Examples of sealed batteries using a sealing body in which the different metal bodies are integrated include those shown in Patent Documents 1 to 3, for example.
  • a sealing plate made of aluminum or an aluminum alloy is welded and integrated with a terminal made of a nickel-aluminum clad material with the aluminum surface of the terminal facing the sealing plate. It is described to do.
  • the external lead connected to the protection circuit or the external apparatus etc. is welded to the said terminal.
  • Patent Document 3 describes that a small piece of nickel is pressed and integrated with a part of an aluminum sealing plate by a cold rolling joining method, and an external lead is welded to the small piece.
  • a method for producing a sealed battery according to the present invention is a method for producing a sealed battery including a battery can and a sealing plate formed from aluminum or an aluminum alloy that closes the opening of the battery can.
  • the method for manufacturing a sealed battery of the present invention it is possible to reduce the time and labor of component management accompanying the joining of dissimilar metals to the sealing plate and improve the manufacturing efficiency of the battery.
  • FIG. 1A is a longitudinal front view of a main part of a sealed battery according to the present invention
  • FIG. 1B is an enlarged view of part B of FIG. 1A
  • FIG. 2 is an exploded perspective view of the sealed battery according to the present invention.
  • 3 is a cross-sectional view taken along the line II of FIG. 1B.
  • FIG. 4 is a top view of the sealing plate of the sealed battery according to the present invention.
  • FIG. 5 is a perspective view showing a process of joining a nickel plate to an aluminum plate.
  • the present invention is a method for producing a sealed battery comprising a battery can and a sealing plate formed of aluminum or an aluminum alloy that closes the opening of the battery can. Further, the method for manufacturing a sealed battery according to the present invention includes a step of preparing a strip-shaped aluminum plate formed of aluminum or an aluminum alloy, and a dissimilar metal different from the aluminum or a different metal alloy different from the aluminum alloy. A step of preparing a strip-shaped dissimilar metal plate having a width narrower than that of the aluminum plate, and a pressure-bonding step of superimposing the dissimilar metal plate on the aluminum plate along the length direction of the aluminum plate.
  • a dissimilar metal body formed of a dissimilar metal or dissimilar metal alloy different from aluminum is integrally formed on the upper surface of a sealing plate made of aluminum or aluminum alloy that closes the opening of the left and right horizontally long battery cans. It is a manufacturing method of the sealed battery formed.
  • the manufacturing method of the present invention provides a strip-shaped aluminum plate made of aluminum or an aluminum alloy and a strip-shaped foreign metal plate made of the above-mentioned different metal or the above-mentioned different metal alloy and having a narrower width than the aluminum plate. A member formed by stacking and press-bonding along the length direction and then cutting an aluminum plate together with a dissimilar metal plate is used as the sealing plate 3.
  • the dissimilar metal body is made of nickel or nickel alloy, iron alloy such as iron or stainless steel, copper or copper alloy, or the like.
  • an external lead connected to a protective circuit or an external device is joined to the dissimilar metal body by welding or soldering using a laser or the like.
  • the dissimilar metal plate can be pressure-bonded to the aluminum plate by conveying the aluminum plate obtained by superimposing the dissimilar metal plates between the pair of rolling rollers in the length direction of the aluminum plate while being pressed.
  • the thickness of the dissimilar metal plate material in a free state before crimping can be in the range of 10 to 25% of the thickness of the aluminum plate material.
  • the dissimilar metal plate material can be handled as a single member in a free state before the pressure bonding since the belt-like dissimilar metal plate material is superimposed on the belt-shaped aluminum plate material and pressure bonded.
  • the labor of component management is reduced.
  • the aluminum plate is cut together with the dissimilar metal plate to form the sealing plate, so that each of the small pieces necessary for crimping the small pieces to the aluminum plate is placed on the aluminum plate.
  • the battery manufacturing efficiency is improved accordingly.
  • the aluminum plate material on which the different metal plate materials are overlapped is conveyed in the length direction of the aluminum plate material while being pressed between a pair of rolling rollers, the aluminum plate material after the pressure bonding is directly conveyed to the cutting process or the like and sealed.
  • the battery manufacturing efficiency is further improved.
  • the thickness of the dissimilar metal plate is in the range of 10 to 25% of the thickness of the aluminum plate in the free state before crimping, the thickness of the dissimilar metal body can be sufficiently secured and different external leads can be secured.
  • the metal body can be appropriately welded, and the thickness of the dissimilar metal body is not excessively increased, so that the use amount of the dissimilar metal body can be suppressed.
  • the thickness of the dissimilar metal plate is less than 10% of the thickness of the aluminum plate, for example, the heat when welding the external lead to the dissimilar metal body can easily escape from the dissimilar metal body to the sealing body. There is a tendency that the lead is not properly welded to the dissimilar metal body. Further, if the thickness of the dissimilar metal plate exceeds 25% of the thickness of the aluminum plate, the amount of the dissimilar metal body is increased by the amount that the dissimilar metal body becomes too thick, leading to an increase in battery cost. Tend to occur.
  • the sealed battery according to the present invention has a bottomed cylindrical battery can 1 having a horizontally long opening on the upper surface and an electrode body 2 accommodated in the battery can 1. And a non-aqueous electrolyte solution, a horizontally long sealing plate 3 that closes and seals the opening of the battery can 1, and a synthetic resin insulator 5 that is disposed below the sealing plate 3.
  • the left-right width dimension of the battery can 1 is, for example, 34 mm
  • the vertical height dimension is, for example, 46 mm
  • the front-rear thickness dimension is, for example, 4 mm.
  • the sealing plate 3 is formed so that the sides 6 and 7 are linear and the sides 6 and 7 are parallel to each other.
  • left and right and front and rear are directions shown in FIG. 2 and FIG. 5 described later.
  • the battery can 1 is formed by, for example, deep drawing a plate material made of aluminum or an aluminum alloy
  • the sealing plate 3 is formed by, for example, pressing and cutting a plate material made of aluminum or an aluminum alloy.
  • the outer peripheral edge of the sealing plate 3 has a step shape in which the lower portion is recessed inward, and the bottom surface of the step is placed on the upper edge of the opening of the battery can 1, for example, from the lateral direction.
  • the electrode body 2 is formed by winding a strip-shaped positive electrode and a strip-shaped negative electrode in a spiral shape with a strip-shaped separator interposed therebetween, and is formed in a flat shape as a whole.
  • a cleavage vent 9 is formed on the left side of the sealing plate 3. The cleavage vent 9 is cleaved when the battery internal pressure abnormally rises to release the battery internal pressure.
  • a liquid injection hole 10 for injecting a non-aqueous electrolyte into the battery can 1 is formed on the right side of the sealing plate 3, and the liquid injection hole 10 after the injection of the non-aqueous electrolyte is closed with a sealing plug 11. For example, it is sealed by a laser.
  • a through hole 14 is formed in the center of the sealing plate 3 in the left-right direction, and a negative electrode terminal 15 is inserted through the through hole 14 with the insulating packing 12 interposed.
  • the insulating plate 13 and the lead plate 16 are arranged vertically, and the lead plate 16 is connected to the lower end of the negative electrode terminal 15.
  • the negative electrode terminal 15 is made of, for example, an iron material whose surface is plated with copper nickel.
  • the insulating packing 12 and the insulating plate 13 are made of a synthetic resin molded product having insulation properties such as polypropylene, and the lead plate 16 is made of a thin plate made of nickel that is horizontally long.
  • the negative electrode terminal 15 is insulated from the sealing plate 3 by the insulating packing 12.
  • the insulating plate 13 extends from the negative electrode terminal 15 side toward the cleavage vent 9 side, and the lead plate 16 extends along the sealing plate 3 from the negative electrode terminal 15 side toward the cleavage vent 9 side in the lateral direction. .
  • the lead plate 16 is insulated from the sealing plate 3 by the insulating plate 13.
  • the lower end of the negative electrode current collector lead 18 is connected to the negative electrode of the electrode body 2, and the upper end of the negative electrode current collector lead 18 is welded to the lower surface of the lead plate 16.
  • the lower end of the positive electrode current collecting lead 19 is connected to the positive electrode of the electrode body 2, and the upper end of the positive electrode current collecting lead 19 is in the space between the negative electrode terminal 15 and the liquid injection hole 10 on the lower surface of the sealing plate 3. Welded.
  • the negative electrode terminal 15 has the same potential as the negative electrode of the electrode body 2, and the sealing plate 3 and the battery can 1 have the same potential as the positive electrode of the electrode body 2.
  • nickel (dissimilar metal) or nickel alloy (dissimilar metal alloy) is formed in the space between the negative electrode terminal 15 and the liquid injection hole 10 on the upper surface of the sealing plate 3, as shown in FIG. 1 and FIG. 2, for example, nickel (dissimilar metal) or nickel alloy (dissimilar metal alloy) is formed.
  • a nickel body (dissimilar metal body) 21 is disposed integrally with the sealing body 3.
  • the nickel body 21 is joined to an external lead 27 described later.
  • the nickel body 21 extends in a band shape between the sides 6 and 7 of the sealing plate 3, and the upper surface of the nickel body 21 is substantially flush with the upper surface of the sealing plate 3.
  • the nickel body 21 has a lateral width dimension of, for example, 5 mm and a thickness dimension of, for example, 0.1 to 0.2 mm.
  • the sealing plate 3 has a left-right width dimension of, for example, 30 mm and a thickness dimension of, for example, 0.8 mm.
  • the nickel body 21 is integrated with the sealing plate 3 as follows, for example. First, a strip-shaped aluminum plate material 22 made of aluminum or an aluminum alloy, which is a material of the sealing plate 3, is prepared. In addition, a strip-like nickel plate material (dissimilar metal plate material) 23 made of nickel or a nickel alloy, which is the material of the nickel body 21, and narrower than the aluminum plate material 22 is prepared. Next, as shown in FIG. 5, the nickel plate material 23 is superposed along the length direction of the aluminum plate material 22 at a predetermined position in the left-right width direction on the upper surface of the aluminum plate material 22, and a pair of upper and lower rolling rollers 24, 25 are used. The nickel plate material 23 is pressure-bonded to the aluminum plate material 22 by being conveyed in the length direction of the aluminum plate material 22 while being sandwiched and pressurized.
  • the aluminum plate material 22 is conveyed to the pressing step and the cutting step, so that the cleavage plate 9, the liquid injection hole 10, and the through hole 14 are formed at predetermined positions in the aluminum plate material 22 to which the nickel plate material 23 is pressure-bonded. And the aluminum plate material 22 is cut
  • the sealing plate 3 formed as described above is used. That is, the negative electrode terminal 15, the insulating packing 12, the insulating plate 13, and the lead plate 16 are assembled to the sealing plate 3 (see FIG. 1A).
  • the electrode body 2 and the insulator 5 are accommodated in the battery can 1, and the negative electrode current collecting lead 18 of the electrode body 2 is welded to the lead plate 16, and the positive electrode current collecting lead 19 of the electrode body 2 is welded to the sealing plate 3. .
  • the inside of the battery can 1 is evacuated and the non-aqueous electrolyte is supplied from the injection hole 10. inject.
  • the sealing plug 11 is press-fitted into the liquid injection hole 10, and the sealing plug 11 is welded to the peripheral edge of the liquid injection hole 10 of the sealing plate 3 by, for example, a laser (see FIG. 1A). Status).
  • the liquid injection hole 10 is sealed with the sealing plug 11 to complete the sealed battery.
  • external leads 26 and 27 for connection to an external device or a protection circuit are connected to the upper surface of the negative electrode terminal 15 and the nickel body 21 by spot welding or the like.
  • the band-shaped nickel plate material 23 is superimposed on the band-shaped aluminum plate material 22 and pressed, the nickel plate material 23 is handled as a single member in a free state before pressure bonding. Can do. Thereby, for example, compared with a case where the nickel plate member 23 is cut into a large number of small pieces, and each small piece is placed on the aluminum plate member 22 and is crimped, the labor of component management is reduced.
  • each piece is placed on the aluminum plate 22 as compared with the case where each piece is pressed against the aluminum plate 22. Therefore, the battery manufacturing efficiency is improved accordingly.
  • the aluminum plate 22 on which the nickel plate 23 is superimposed is conveyed in the length direction of the aluminum plate 22 while being pressed between the pair of rolling rollers 24 and 25. Therefore, the aluminum plate 22 after the pressure bonding is conveyed. Can be transported to the cutting process or the like as it is to form the sealing body 3, and the manufacturing efficiency of the battery is further improved.
  • the thickness of the nickel plate material 23 in a free state before crimping is in the range of 10 to 25% of the thickness of the aluminum plate material 22. If the thickness of the nickel plate material 23 is less than 10% of the thickness of the aluminum plate material 22, the nickel body 21 becomes too thin, and when the external lead 27 is welded to the nickel body 21, the heat of the welding is reduced to the nickel body. There is a tendency that the inconvenience that the external lead 27 is not properly welded to the nickel body 21 due to escape from the sealing body 21 to the sealing body 3. Further, if the thickness of the nickel plate member 23 exceeds 25% of the thickness of the aluminum plate member 22, the nickel body 21 becomes too thick, and the amount of use of the nickel body 21 increases, leading to an increase in battery cost. Tend to occur.
  • the nickel body (different metal body) 21 may be formed of an iron alloy such as iron or stainless steel, or formed of copper or a copper alloy.
  • the present invention it is possible to provide a manufacturing method of a sealed battery that can reduce the labor of component management accompanying the joining of dissimilar metals to the sealing plate and can improve the manufacturing efficiency of the battery, and its industrial value is great. .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

L’invention concerne un procédé de fabrication de batteries étanches comprenant les étapes suivantes : préparation d’un matériau laminé en aluminium en forme de bande constitué d’aluminium ou d’un alliage d’aluminium ; préparation d’un matériau laminé métallique dissemblable en forme de bande constitué d’un métal dissemblable de l’aluminium ou d’un alliage métallique dissemblable de l’alliage d’aluminium et ayant une largeur plus petite que le matériau laminé en aluminium ; assemblage par compression du matériau laminé métallique dissemblable au matériau laminé en aluminium avec le matériau laminé métallique dissemblable recouvrant le matériau laminé en aluminium de manière à être aligné dans le sens longitudinal du matériau laminé en aluminium ; découpe du matériau laminé en aluminium conjointement avec le matériau laminé métallique dissemblable après l’étape d’assemblage par compression pour former une plaque de scellement d’ouverture intégrée avec un corps métallique dissemblable constitué du métal dissemblable ou de l’alliage métallique dissemblable ; et fixation de la plaque de scellement d’ouverture à une ouverture d’un boîtier de batterie avec le corps métallique dissemblable dirigé vers l’extérieur.
PCT/JP2009/060340 2008-06-10 2009-06-05 Procédé de fabrication de batteries étanches WO2009151007A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-151931 2008-06-10
JP2008151931A JP2011192386A (ja) 2008-06-10 2008-06-10 密閉型電池の製造方法

Publications (1)

Publication Number Publication Date
WO2009151007A1 true WO2009151007A1 (fr) 2009-12-17

Family

ID=41416713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/060340 WO2009151007A1 (fr) 2008-06-10 2009-06-05 Procédé de fabrication de batteries étanches

Country Status (2)

Country Link
JP (1) JP2011192386A (fr)
WO (1) WO2009151007A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013107732A1 (fr) * 2012-01-19 2013-07-25 Robert Bosch Gmbh Couvercle de boîtier pour un boîtier de batterie ainsi que procédé permettant de fabriquer ledit couvercle de boîtier
JP2014182950A (ja) * 2013-03-19 2014-09-29 Gs Yuasa Corp 蓄電素子
EP4166268A4 (fr) * 2020-08-18 2024-01-17 LG Energy Solution, Ltd. Appareil de soudage pour la fabrication d'une batterie secondaire, et procédé de soudage l'utilisant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003157904A (ja) * 2001-11-22 2003-05-30 Gs-Melcotec Co Ltd リチウムイオン電池及び電池装置
JP2004311401A (ja) * 2002-12-18 2004-11-04 Samsung Sdi Co Ltd 二次電池
JP2006051523A (ja) * 2004-08-12 2006-02-23 Neomax Material:Kk 導電部品用クラッド材およびその製造方法
JP2006147574A (ja) * 2004-11-18 2006-06-08 Samsung Sdi Co Ltd 二次電池及びその形成方法
JP2007335219A (ja) * 2006-06-15 2007-12-27 Nec Tokin Corp 密閉型電池

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003157904A (ja) * 2001-11-22 2003-05-30 Gs-Melcotec Co Ltd リチウムイオン電池及び電池装置
JP2004311401A (ja) * 2002-12-18 2004-11-04 Samsung Sdi Co Ltd 二次電池
JP2006051523A (ja) * 2004-08-12 2006-02-23 Neomax Material:Kk 導電部品用クラッド材およびその製造方法
JP2006147574A (ja) * 2004-11-18 2006-06-08 Samsung Sdi Co Ltd 二次電池及びその形成方法
JP2007335219A (ja) * 2006-06-15 2007-12-27 Nec Tokin Corp 密閉型電池

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013107732A1 (fr) * 2012-01-19 2013-07-25 Robert Bosch Gmbh Couvercle de boîtier pour un boîtier de batterie ainsi que procédé permettant de fabriquer ledit couvercle de boîtier
JP2014182950A (ja) * 2013-03-19 2014-09-29 Gs Yuasa Corp 蓄電素子
EP4166268A4 (fr) * 2020-08-18 2024-01-17 LG Energy Solution, Ltd. Appareil de soudage pour la fabrication d'une batterie secondaire, et procédé de soudage l'utilisant

Also Published As

Publication number Publication date
JP2011192386A (ja) 2011-09-29

Similar Documents

Publication Publication Date Title
US10510997B2 (en) Film-covered battery
CN209786103U (zh) 二次电池
US9525228B2 (en) Battery terminal, method for manufacturing battery terminal, and battery
US9882192B2 (en) Interconnection assemblies and methods for forming the interconnection assemblies in a battery module
US10622597B2 (en) Battery cell having outer edge sealed portion with sealed lines and battery cell sealing apparatus for manufacture thereof
JP4904539B2 (ja) リード部材とその接合方法及び非水電解質蓄電デバイス
JP5587061B2 (ja) 抵抗溶接用通電ブロック、この通電ブロックを用いた密閉電池の製造方法及び密閉電池
US11342632B2 (en) Battery module
US9287548B2 (en) Terminal unit for secondary battery and method of manufacturing the same
US20150214516A1 (en) Secondary battery
KR101915825B1 (ko) 전지용 부극 단자 및 전지용 부극 단자의 제조 방법
US8530068B2 (en) Square battery and manufacturing method of the same
KR101637891B1 (ko) 둘 이상의 부재들로 이루어진 전지케이스를 포함하는 각형 전지셀
JP2011138765A (ja) 電池モジュール
US20140205887A1 (en) Battery and method for manufacturing same
JP6476746B2 (ja) 蓄電素子、電源モジュール及び蓄電素子の製造方法
US9505082B2 (en) Manufacturing method of electric storage apparatus and electric storage apparatus
JP2020518963A (ja) 電極タブリード結合部に適用されるプラスチック部材を含む電極組立体及びこれを含む二次電池
JP2015153513A (ja) ラミネート外装電池
KR101520168B1 (ko) 파우치형 리튬 이차 전지
CN113285109A (zh) 袋状电池单元及其制造方法
WO2009151007A1 (fr) Procédé de fabrication de batteries étanches
KR101182643B1 (ko) 각형 전지 케이스의 제조방법
KR102309416B1 (ko) 박판을 이용한 리드 단선을 개선하는 파우치형 이차전지 및 그 제조방법
KR101753938B1 (ko) 전기 절연성이 향상된 이차전지의 제조방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09762437

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09762437

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP