CN1441505A - 密闭式电池 - Google Patents

密闭式电池 Download PDF

Info

Publication number
CN1441505A
CN1441505A CN02158438A CN02158438A CN1441505A CN 1441505 A CN1441505 A CN 1441505A CN 02158438 A CN02158438 A CN 02158438A CN 02158438 A CN02158438 A CN 02158438A CN 1441505 A CN1441505 A CN 1441505A
Authority
CN
China
Prior art keywords
electrode
type cell
enclosed type
battery
resin layer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN02158438A
Other languages
English (en)
Other versions
CN1220287C (zh
Inventor
大角哲博
原卫二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Envision Aesc Energy Components Co ltd
Original Assignee
NEC Tokin Tochigi Ltd
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 NEC Tokin Tochigi Ltd filed Critical NEC Tokin Tochigi Ltd
Publication of CN1441505A publication Critical patent/CN1441505A/zh
Application granted granted Critical
Publication of CN1220287C publication Critical patent/CN1220287C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/147Lids or covers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/543Terminals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/34Gastight accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/102Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/172Arrangements of electric connectors penetrating the casing
    • H01M50/174Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/543Terminals
    • H01M50/552Terminals characterised by their shape
    • H01M50/553Terminals adapted for prismatic, pouch or rectangular cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)

Abstract

提供一种密闭式电池,没有因薄片接合时热的影响、时效性的铆接状态的松弛产生的封口不良,配置绝缘性部件,该绝缘性部件覆盖对电池筒的开口部进行封口的金属板上设置的通孔的内表面、以及通孔周围的金属板的两面,在位于绝缘性部件的电池的外表面的面上,连接配置在一个面上形成了合成树脂层的电极引出板的合成树脂层面,具有通过穿过电极引出板的通孔的电极导出线而一体化的电极端子。

Description

密闭式电池
技术领域
本发明涉及密闭式电池,特别涉及具有将极性与电池筒的极性不同的电池端子通过绝缘性部件来安装的成为电极端子的电极引出板的密闭式电池。
背景技术
作为小型的电子装置的电源,使用着各种电池,作为携带电话、笔记薄电脑、摄象机等的电源,使用着小型大容量的密闭式电池,使用着锂电池和锂离子二次电池等使用了非水电解液的密闭式电池。
对应于设备的小型化,除了圆筒形电池以外,还广泛使用着可以有效利用小空间的方形的密闭式电池。在方形电池中,安装作为起到电池的一个电极作用的电池筒和由绝缘性部件隔离的电极端子。
图2表示说明方形的密闭式电池的一例的图。
密闭式电池1是在由不锈钢、对表面实施了镀镍的低碳钢等构成的方筒状的金属容器2(以下也称为电池筒)中,装入卷绕了通过隔板层积了正极电极和负极电极的电池元件,在电池筒2的上端,在金属板3上,将通过正极侧的电极导出线6使外部绝缘板4A、正极侧的电极引出板5一体化所构成的顶板7安装在电池筒2的开口部并进行封口,在顶板7的一部分中,设置用于在电池内部压力异常上升时释放压力的壁厚比其他部分薄的薄壁部8、电解液的注液孔9,在从注液孔9注入电解液后填入不锈钢等金属构成的部件,进行焊接封口。
图3是说明顶板的一例的图,图3(A)是剖面图,图3(B)是顶板的分解透视图,是说明正极导出线铆接前的状态的图。
在不锈钢、实施了镀镍的低碳钢板等构成的金属板3中设置的通孔10中,靠下部安装聚丙烯、氟树脂等组成的内部绝缘板4B,在上部装载外部绝缘部4A,使具有铝或铝合金等导电性良好的金属构成的凸缘部6A的电极导出线6贯通在内部绝缘部4B上设置的孔,安装电极引出板5,通过从上到下铆接电极导出线的凸缘部6A和柱状部6B的前端来形成顶板7。
在制作的顶板7的电极导出线6的凸缘部6A中,在接合电池元件并接合由绝缘性部件11覆盖的导电薄片12后嵌入在电池筒的开口部中,对周围进行激光焊接来封口。
在顶板组装时电极导出线6通过铆接被压碎,与电极引出板5的平面接触,在电极导出线和正极引出板5之间形成电连接。另一方面,电极引出板5的下面与外部绝缘部4A的表面接触并保持气密性。
但是,在电极引出板中,用于将电池连接到外部电路的薄片通过钎焊、焊接等方法被接合,有可能因接合时的热过程造成外部绝缘板的合成树脂的收缩、或因铆接状态的松弛产生气密保持力的下降。
本发明的课题是:在具有将电极导出线铆接密封的电极密封构造的电池中,提供绝缘性、气密性优良、绝缘板和电极引出板之间的气密保持性良好、时效性的变化小、可靠性高的密闭式电池。
发明内容
本发明提供一种密闭式电池,在密闭式电池中,配置有绝缘性部件,该绝缘性部件覆盖对电池筒的开口部进行封口的金属板上设置的通孔的内表面、以及通孔周围的金属板的两面,在位于绝缘性部件的电池的外表面的面上,连接配置在一个面上形成了合成树脂层的电极引出板的合成树脂层面,和具有通过穿过电极引出板的通孔的电极导出线而一体化的电极端子。
所述密闭式电池的电极引出板上形成的合成树脂层是环氧树脂层。
所述密闭式电池是锂离子电池。
附图说明
图1是说明本发明的密闭式电池的图。
图2是说明方形的密闭式电池的一例的图。
图3是说明顶板的一例的图。
具体实施方式
在铆接电极导出线后与电极引出板进行一体化,形成电极引出端子部的密闭式电池中,本发明的密闭式电池在通过钎焊或焊接等加热方式将外部连接电路连接到电极引出端子部的电极引出板的情况下,发现由于使用在电极引出板的一个面上形成合成树脂层的部件,可没有绝缘性部件的时效性的气密不良或电阻增加的现象。
图1是说明本发明的密闭式电池的图。
图1(A)是说明密闭式电池的电极引出端子部的剖面图,图1(B)是说明顶板7组装前的各部件的透视图。
在形成密闭式电池的顶板7的金属板3上,配置外部绝缘板4A、内部绝缘板4B,以便覆盖金属板3上形成的通孔10的内表面,同时覆盖通孔周围的金属板3的上下面,在外部绝缘板4A的上部设置电极引出板5。
在电极引出板5中,在一个面上形成合成树脂层5A,将合成树脂层5A连接在外部绝缘板4A的上面,铆接从内部绝缘板4B侧穿过的电极导出线6并进行封口及一体化。
在电极导出线6的凸缘部6A中,接合由接合在电池元件的电池电极上的绝缘性部件11保护的导电薄片12来进行与电池元件的电连接。
此外,位于顶板的电池内部侧和通孔的内壁面的内部绝缘板4B也可以如图1(B)所示插入安装在金属板3中设置的通孔中,但也可以通过嵌入铸模等将金属板和绝缘性材料与金属板一体地形成。
在通过嵌入铸模等使绝缘性部件与构成顶板的盖体部分的金属板一体形成的情况下,与通过多个部件来构成绝缘性部件的情况相比,可以使厚度薄,所以可以进行顶板的小型化。而且,可以减少顶板的组装工序数。
作为绝缘性部件,可列举聚丙烯、或四氟乙烯-双氟烷基乙烯共聚物(PFA)、四氟乙烯-六氟丙烯共聚物(FEP)等可热塑性氟树脂等。
作为位于顶板的外表面的外部绝缘板4A上面设置的电极引出板,可以使用镍板、实施了镀镍的低碳钢板、铜板、锌白铜板等。
作为电极引出板上形成的合成树脂层,最好是耐热性良好、与金属材料的粘结性良好的环氧树脂层、聚亚胺酯树脂层、聚氯乙烯树脂层等。其中,在耐溶剂性方面,环氧树脂层最好。这些合成树脂层可以用各种方法来形成,但最好是通过涂敷来形成。
合成树脂层的厚度最好为5μm至30μm,特别是在通过涂敷形成时,如果比5μm薄,则产生涂敷不匀,而如果比30μm厚,则难以进行涂敷。
电极引出板可以如下制造:在镍板、实施了镀镍的低碳钢板、铜板、锌白铜板等的板状体上均匀厚度地涂敷固化性组成物后进行固化,接着以期望的形状进行切断,形成电极导出线的孔等。
作为电极导出线,最好使用将铝或其合金构成的金属原料加工成电极导出线的形状后进行退火。
电极导出线通过退火,铆接时的变形变得均匀,而且表面硬度下降,不易发生表面的裂化等,与绝缘性部件之间的密闭性等良好。
电极导出线通过退火其硬度暂时性地下降,但通过铆接加工施加的冲击引起加工固化,铆接后的电极导出线显示出与不进行退火的电极导出线同样的硬度,所以不发生封口特性的降低或电极导出线的铆接强度的降低。
以下,示出实施例、比较例来说明本发明。
实施例1
在长边为33mm、短边为5mm的长方形状的镀镍低碳钢板的中央设置的直径为2.6mm的通孔中安装外部绝缘板和内部绝缘板,装载在中央有直径为2.0mm的孔、在一个表面上形成厚度为7μm的环氧树脂层的镍板制成的电极引出板,从内部绝缘板侧穿过直径为1.5mm的圆柱状的铝制的电极导出线,从电极导出线的上下进行铆接来制造顶板。
将锂离子电池的电池元件装入高度为48mm、宽度为29mm、厚度为6mm的镀镍的低碳钢制的电池筒中并焊接顶板后,从电解液注入口注液电解液,接着对电解液中液口进行封口,制造密闭式电池。
在对制作的100个电池的电极引出端子部测定经过500小时后的电解液漏泄时,未发生电解液漏泄。
比较例1
除了不在电极引出板上设置环氧树脂层以外,制作使用与实施例1同样制作的电池顶板的密闭式电池,在对制作的100个电池的电极引出端子部测定经过500小时后的电解液漏泄时,发生0.1%的电解液漏泄。
如以上那样,本发明的密闭式电池,将铆接电极导出线来形成制作与电极引出板电连接的外部连接端子连接配置在形成了电极引出板的合成树脂层的面的绝缘性部件上,铆接制造电极导出线,所以绝缘性部件和电极引出板的粘结性良好,不产生因导电连接薄片的接合时加热的影响造成的铆接部的时效性松弛而漏泄电解液,可以提供可靠性高的密闭式电池。

Claims (4)

1.一种密闭式电池,在该密闭式电池中,配置有绝缘性部件,该绝缘性部件覆盖对电池筒的开口部进行封口的金属板上设置的通孔的内表面、以及通孔周围的金属板的两面,在位于绝缘性部件的电池的外表面的面上,连接配置在一个面上形成了合成树脂层的电极引出板的合成树脂层面,和具有通过穿过电极引出板的通孔的电极导出线而一体化的电极端子。
2.如权利要求1所述的密闭式电池,其特征在于,电极引出板上形成的合成树脂层是环氧树脂层。
3.如权利要求1所述的密闭式电池,其中,该密闭式电池是锂离子电池。
4.如权利要求2所述的密闭式电池,其中,该密闭式电池是锂离子电池。
CNB021584389A 2001-11-14 2002-11-14 密闭式电池 Expired - Lifetime CN1220287C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001348578A JP2003151528A (ja) 2001-11-14 2001-11-14 密閉型電池
JP348578/2001 2001-11-14

Publications (2)

Publication Number Publication Date
CN1441505A true CN1441505A (zh) 2003-09-10
CN1220287C CN1220287C (zh) 2005-09-21

Family

ID=19161378

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021584389A Expired - Lifetime CN1220287C (zh) 2001-11-14 2002-11-14 密闭式电池

Country Status (6)

Country Link
US (1) US6977125B2 (zh)
EP (1) EP1313157B1 (zh)
JP (1) JP2003151528A (zh)
KR (1) KR20030040136A (zh)
CN (1) CN1220287C (zh)
DE (1) DE60231947D1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101562238A (zh) * 2008-04-17 2009-10-21 日立麦克赛尔株式会社 密封电池的制造方法
US7964306B2 (en) 2005-03-24 2011-06-21 Samsung Sdi Co., Ltd. Lithium rechargeable battery having electrode pin
CN103137910A (zh) * 2011-11-29 2013-06-05 株式会社杰士汤浅国际 蓄电元件以及蓄电元件的制造方法
US9123956B2 (en) 2006-02-02 2015-09-01 Samsung Sdi Co., Ltd. Cell barrier for secondary battery module and secondary battery module
WO2020103950A1 (zh) * 2018-11-23 2020-05-28 常州微宙电子科技有限公司 锂离子电池及其双面绝缘金属盖板

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3736789B2 (ja) * 2000-04-10 2006-01-18 Necトーキン栃木株式会社 密閉型電池
US7150911B2 (en) * 2001-02-08 2006-12-19 Showa Denko Kabushiki Kaisha Electrical insulating vapor grown carbon fiber and method for producing the same, and use thereof
US7871725B2 (en) 2002-04-15 2011-01-18 Samsung Sdi Co., Ltd. Secondary battery with enhanced ability to prevent leakage
JP4079017B2 (ja) * 2003-03-18 2008-04-23 松下電器産業株式会社 リモコン送信機
US7807285B1 (en) 2004-04-07 2010-10-05 Quallion Llc Battery connection structure and method
US7145076B2 (en) * 2005-02-08 2006-12-05 Greatbatch, Inc. Method for minimizing stress in feedthrough capacitor filter assemblies
KR100646520B1 (ko) * 2005-03-09 2006-11-14 삼성에스디아이 주식회사 이차 전지 및 그 조립방법
US8383264B2 (en) * 2009-04-22 2013-02-26 Han Cheng Kuo Current collecting post seal for high durability lithium-ion cells
JP5595830B2 (ja) * 2009-08-26 2014-09-24 株式会社東芝 電池、組電池及び組電池の製造方法
JP5566641B2 (ja) 2009-08-26 2014-08-06 株式会社東芝 電池
JP2012059365A (ja) 2010-09-03 2012-03-22 Sanyo Electric Co Ltd 密閉電池用端子及びその製造方法
KR101724007B1 (ko) * 2011-11-15 2017-04-07 삼성에스디아이 주식회사 이차 전지
US20210159470A1 (en) * 2019-11-27 2021-05-27 Pacesetter, Inc. Batteries with composite header construction
CN111244344A (zh) * 2019-12-24 2020-06-05 广东中科瑞龙科技发展有限公司 一种电池电极密封结构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH658547A5 (de) * 1981-10-20 1986-11-14 Sanyo Electric Co Batteriegehaeuse.
JP3106260B2 (ja) * 1992-01-14 2000-11-06 松下電器産業株式会社 密閉電池およびその製造方法
JPH05198291A (ja) * 1992-01-20 1993-08-06 Matsushita Electric Ind Co Ltd アルカリ密閉電池
JP3787873B2 (ja) * 1995-11-24 2006-06-21 株式会社ジーエス・ユアサコーポレーション 電池
JP3573853B2 (ja) * 1995-11-30 2004-10-06 三洋電機株式会社 密閉型電池
KR19990041760A (ko) * 1997-11-24 1999-06-15 손욱 이차전지의 캡 어셈블리
KR100544111B1 (ko) * 1999-03-22 2006-01-23 삼성에스디아이 주식회사 각형 이차전지
US6296967B1 (en) * 1999-09-24 2001-10-02 Electrofuel Inc. Lithium battery structure incorporating lithium pouch cells
KR100349908B1 (ko) * 1999-12-15 2002-08-22 삼성에스디아이 주식회사 각형 밀폐전지
KR100349911B1 (ko) * 1999-12-27 2002-08-22 삼성에스디아이 주식회사 각형 밀폐전지 및 그 제조방법
JP3736789B2 (ja) * 2000-04-10 2006-01-18 Necトーキン栃木株式会社 密閉型電池
JP2002151022A (ja) * 2000-11-14 2002-05-24 Wako Denshi Kk 二次電池の蓋
JP3756096B2 (ja) * 2001-10-02 2006-03-15 Necトーキン栃木株式会社 密閉型電池
US6673489B2 (en) * 2001-12-28 2004-01-06 Quallion Llc Electric battery assembly and method of manufacture
DE10300008B4 (de) * 2002-01-09 2006-04-27 Nec Tokin Tochigi Ltd., Utsunomiya Verschlossene Batterie und Verfahren zur Herstellung einer verschlossenen Batterie

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7964306B2 (en) 2005-03-24 2011-06-21 Samsung Sdi Co., Ltd. Lithium rechargeable battery having electrode pin
US9123956B2 (en) 2006-02-02 2015-09-01 Samsung Sdi Co., Ltd. Cell barrier for secondary battery module and secondary battery module
CN101562238A (zh) * 2008-04-17 2009-10-21 日立麦克赛尔株式会社 密封电池的制造方法
CN101562238B (zh) * 2008-04-17 2013-08-14 日立麦克赛尔能源株式会社 密封电池的制造方法及密封电池
CN103137910A (zh) * 2011-11-29 2013-06-05 株式会社杰士汤浅国际 蓄电元件以及蓄电元件的制造方法
CN103137910B (zh) * 2011-11-29 2016-06-29 株式会社杰士汤浅国际 蓄电元件以及蓄电元件的制造方法
WO2020103950A1 (zh) * 2018-11-23 2020-05-28 常州微宙电子科技有限公司 锂离子电池及其双面绝缘金属盖板

Also Published As

Publication number Publication date
JP2003151528A (ja) 2003-05-23
DE60231947D1 (de) 2009-05-28
EP1313157A2 (en) 2003-05-21
US6977125B2 (en) 2005-12-20
EP1313157A3 (en) 2006-09-27
KR20030040136A (ko) 2003-05-22
US20030091897A1 (en) 2003-05-15
EP1313157B1 (en) 2009-04-15
CN1220287C (zh) 2005-09-21

Similar Documents

Publication Publication Date Title
CN1220287C (zh) 密闭式电池
JP5481443B2 (ja) 2次電池
JP5345633B2 (ja) 緻密な構造の二次バッテリーパック
US8334063B2 (en) Secondary battery
CN1204633C (zh) 密闭型电池
CN1753231A (zh) 二次电池
US8268463B2 (en) Secondary battery and method of fabricating the same
CN102760855B (zh) 二次电池
US8420255B2 (en) Storage cell and method of manufacturing same
US9028993B2 (en) Secondary battery
KR101040975B1 (ko) 신규한 구조의 이차전지 팩
US7432010B2 (en) Battery
KR20150031093A (ko) 이차전지모듈
CN1519963A (zh) 保护器及具有该保护器的锂二次电池
US20120202107A1 (en) Electric storage device
CN1523688A (zh) 具有至少一个锂注入电极的可充电原电池
EP2387088A2 (en) Battery pack
US9246142B2 (en) Secondary battery having interconnected positive and negative electrode tabs
US9728764B2 (en) Alkaline storage battery
JP5679271B2 (ja) 電極端子付き電池蓋、電極端子付き電池蓋の製造方法および密閉型電池
JP5240824B2 (ja) 密閉型電池
US20090027829A1 (en) Electric Double Layer Capacitor
CN115298888B (zh) 电池包及电动工具
US20120189873A1 (en) Battery pack
CN207233792U (zh) 动力电池盖板及其动力电池

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: NEC ENERGY COMPONENTS CO., LTD.

Free format text: FORMER OWNER: NEC TOKIN CO., LTD.

Effective date: 20100903

Owner name: NEC TOKIN CO., LTD.

Free format text: FORMER OWNER: NEC TOGANE TOCHIKI CO., LTD.

Effective date: 20100903

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: TOCHIGI, JAPAN TO: SENDAI CITY, MIYAGI, JAPAN

Free format text: CORRECT: ADDRESS; FROM: SENDAI CITY, MIYAGI, JAPAN TO: KANAGAWA, JAPAN

TR01 Transfer of patent right

Effective date of registration: 20100903

Address after: Kanagawa

Patentee after: NEC ENERGY DEVICES, Ltd.

Address before: Sendai City, Miyagi Prefecture, Japan

Patentee before: NEC Tokin Corp.

Effective date of registration: 20100903

Address after: Sendai City, Miyagi Prefecture, Japan

Patentee after: NEC TOKIN Corp.

Address before: Tochigi County, Japan

Patentee before: NEC TOKIN TOCHIGI, Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: Kanagawa

Patentee after: Envision AESC Energy Components Co.,Ltd.

Address before: Kanagawa

Patentee before: NEC ENERGY DEVICES, Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Safety valve structure of enclosed type cell

Effective date of registration: 20190821

Granted publication date: 20050921

Pledgee: SUMITOMO MITSUI BANKING Corp.

Pledgor: Envision AESC Energy Components Co.,Ltd.

Registration number: Y2019990000102

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20050921