MY120231A - Hermetically sealed cell - Google Patents

Hermetically sealed cell

Info

Publication number
MY120231A
MY120231A MYPI98001675A MYPI9801675A MY120231A MY 120231 A MY120231 A MY 120231A MY PI98001675 A MYPI98001675 A MY PI98001675A MY PI9801675 A MYPI9801675 A MY PI9801675A MY 120231 A MY120231 A MY 120231A
Authority
MY
Malaysia
Prior art keywords
battery
metal foil
internal pressure
metal substrate
burst
Prior art date
Application number
MYPI98001675A
Inventor
Akiyoshi Takada
Kinji Saijo
Kazuo Yoshida
Nobuyuki Yoshimoto
Takehiko Isobe
Original Assignee
Toyo Kohan Co Ltd
Fukuda Metal Foil Powder
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 Toyo Kohan Co Ltd, Fukuda Metal Foil Powder filed Critical Toyo Kohan Co Ltd
Publication of MY120231A publication Critical patent/MY120231A/en

Links

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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • 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
    • H01M50/574—Devices or arrangements for the interruption of current
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Secondary Cells (AREA)

Abstract

THE OBJECT OF THE PRESENT INVENTION IS TO PROVIDE A CLOSED BATTERY CAPABLE OF RAPIDLY RELEASING THE INTERNAL PRESSURE THEREOF AND AT THE SAME TIME DISCONNECTING THE CURRENT TO EFFECTIVELY PREVENT ITSELF FROM TEMPERATURE RISING AND EXPLOSION SO THAT IT MAY ASSURE THE SAFETY AND RELIABILITY THEREOF, WHEN, THE INTERNAL PRESSURE IS ELEVATED DUE TO SHORT CIRCUIT, OVERCHARGE, REVERSE CHARGE, OR THE LIKE IN SUCH A COMPLETELY CLOSED BATTERY.@A CLOSED BATTERY OF THE PRESENT INVENTION IS PROVIDED WITH A CLOSING MEMBER SERVING AS A VALVE CHIP, WHICH IS COMPOSED OF A METAL SUBSTRATE 1 IN WHICH A VALVE ELEMENT 5 IS PROVIDED AND DEFINED BY A BREAK LINE 3, AND A METAL FOIL 2 ADHERED TO THE INNER SURFACE OF THE METAL SUBSTRATE 1. WHEN THE INTERNAL PRESSURE OF THE BATTERY IS ELEVATED, THE VALVE ELEMENT 5 IS RAISED UP FROM THE METAL SUBSTRATE FROM THE BENDING FULCRUM PORTION 4 SO AS TO PERMIT A OPENING VALVE 7 TO BE FORMED, SO THAT THE METAL FOIL 2 IS ALLOWED TO BURST STABLY AND ACCURATELY AT A PRESCRIBED PRESSURE, ESPECIALLY AT A LOW PRESSURE, SO AS TO DISCHARGE THE INTERNAL GAS OF THE BATTERY. BESIDES, WITH A LEAD WIRE 6 ATTACHED TO THE METAL FOIL 2, THE BURST CAN BREAK THE CURRENT SO THAT THE BATTERY CAN PREVIOUSLY BE PREVENTED FROM EXPLODING.(FIG. 1)
MYPI98001675A 1997-04-21 1998-04-15 Hermetically sealed cell MY120231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11600897 1997-04-21

Publications (1)

Publication Number Publication Date
MY120231A true MY120231A (en) 2005-09-30

Family

ID=14676554

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI98001675A MY120231A (en) 1997-04-21 1998-04-15 Hermetically sealed cell

Country Status (8)

Country Link
US (1) US6440599B1 (en)
JP (1) JP3655643B2 (en)
KR (1) KR100517371B1 (en)
CN (1) CN1160810C (en)
AU (1) AU6854698A (en)
MY (1) MY120231A (en)
TW (1) TW367631B (en)
WO (1) WO1998048465A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6559537B1 (en) * 2000-08-31 2003-05-06 Micron Technology, Inc. Ball grid array packages with thermally conductive containers
KR100605163B1 (en) 2005-01-27 2006-07-31 삼성전자주식회사 Optical disc drive
JP5024615B2 (en) * 2007-10-12 2012-09-12 トヨタ自動車株式会社 Sealed battery
CN201436692U (en) * 2009-02-12 2010-04-07 上海比亚迪有限公司 Cylindrical lithium secondary cell cap component and cell using the cap component
KR101094937B1 (en) * 2009-02-16 2011-12-15 삼성에스디아이 주식회사 Cylindrical secondary battery
US8241772B2 (en) 2009-06-12 2012-08-14 Tesla Motors, Inc. Integrated battery pressure relief and terminal isolation system
JP4605823B1 (en) * 2010-03-29 2011-01-05 章 池田 Sealed battery safety valve and sealed battery using the same
KR101927398B1 (en) * 2012-04-12 2018-12-10 에스케이이노베이션 주식회사 Pouch type secondary battery
US10128486B2 (en) 2015-03-13 2018-11-13 Purdue Research Foundation Current interrupt devices, methods thereof, and battery assemblies manufactured therewith
DE102020207109A1 (en) 2020-06-05 2021-12-09 Elringklinger Ag Electrochemical cell, method for producing an electrochemical cell, electrochemical system and method for producing an electrochemical system
KR102670692B1 (en) * 2022-10-04 2024-05-30 삼성에스디아이 주식회사 Cylindrical secondary battery

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625069A (en) * 1961-12-15
JP2792098B2 (en) * 1989-04-25 1998-08-27 松下電器産業株式会社 Safety device for organic electrolyte battery
DE69205542T3 (en) * 1991-04-26 2001-06-07 Sony Corp., Tokio/Tokyo SECONDARY BATTERY WITH NON-AQUE ELECTROLYTE.
JPH04349347A (en) * 1991-05-27 1992-12-03 Asahi Chem Ind Co Ltd Sealed battery
CA2106066C (en) * 1991-09-13 1997-08-12 Akira Yoshino Secondary battery
JP3233679B2 (en) * 1992-05-14 2001-11-26 旭化成株式会社 Manufacturing method of battery safety valve device
JPH07105933A (en) * 1993-10-06 1995-04-21 Hitachi Maxell Ltd Explosion-proof sealed battery
JP3593709B2 (en) * 1994-01-17 2004-11-24 日本電池株式会社 battery
JPH07254402A (en) * 1994-03-15 1995-10-03 Toshiba Battery Co Ltd Sealed battery
US5741606A (en) * 1995-07-31 1998-04-21 Polystor Corporation Overcharge protection battery vent
KR100386394B1 (en) * 1996-02-16 2003-08-14 후지 덴키 가가쿠 가부시키가이샤 Battery with explosion-proof function
JP3853461B2 (en) * 1997-04-02 2006-12-06 松下電器産業株式会社 Explosion-proof sealing plate for sealed battery and method for manufacturing the same

Also Published As

Publication number Publication date
WO1998048465A1 (en) 1998-10-29
CN1252897A (en) 2000-05-10
US6440599B1 (en) 2002-08-27
TW367631B (en) 1999-08-21
AU6854698A (en) 1998-11-13
JP3655643B2 (en) 2005-06-02
KR100517371B1 (en) 2005-09-27
KR20010020167A (en) 2001-03-15
CN1160810C (en) 2004-08-04

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