MY124164A - Closed battery and closing member - Google Patents

Closed battery and closing member

Info

Publication number
MY124164A
MY124164A MYPI98002042A MYPI9802042A MY124164A MY 124164 A MY124164 A MY 124164A MY PI98002042 A MYPI98002042 A MY PI98002042A MY PI9802042 A MYPI9802042 A MY PI9802042A MY 124164 A MY124164 A MY 124164A
Authority
MY
Malaysia
Prior art keywords
battery
valve element
internal
exploding
circumference
Prior art date
Application number
MYPI98002042A
Inventor
Akiyoshi Takada
Kinji Saijo
Kazuo Yoshida
Nobuyuki Yoshimoto
Takehiko Isobe
Original Assignee
Fukuda Metal Foil Powder
Toyo Kohan Co 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 Fukuda Metal Foil Powder, Toyo Kohan Co Ltd filed Critical Fukuda Metal Foil Powder
Publication of MY124164A publication Critical patent/MY124164A/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
    • 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
    • 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 IN IVENTION IS TO PROVIDE A CLOSED BATTERY CAPABLE OF RAPIDLY RELEASING THE INTERNAL PRESURE THEREOF AND AT THE SAME TIME DISCONNECTING THE CURRENT TO EFFECTIVELY PREVENT ITSELF FROM TEMPERATURE RISING AND EXPLODING SO THAT IN SUCH A COMPLETELY CLOSED BATTERY IT MAY ASSURE THE SAFETY AND RELIABILITY THEREOF, WHEN THE INTERNAL PRESSURE IS ELEVATED DUE SHORT CIRCUIT, OVERCHARGE, REVERSE CHARGE, OR THE LIKE.A VALVE ELEMENT (5) IS PROVIDED WITH A SLIT (3) BETWEEN THE CIRCUMFERENCE THEREOF AND A METAL SUBSTRATE (1).WHEN THE INTERNAL PRESSURE OF A BATTERY IS ELEVATED, THE VALVE ELEMENT (5) IS SMOOTHLY RAISED UP TOGETHER WITH A METAL FOIL (2) FROM A BENDING FULCRUM PORTION (4) TO THEREBY CUT A LEAD WIRE (6) OR PERMIT A BRAZE PORTION (8) TO DETACH FROM THE LEAD WIRE (6), THUS DISCONNECTING THE CURRENT RELIABLY.THEN, THE METAL FOIL WHICH USUALLY CLOSES THE SLIT FORMED AROUND THE CIRCUMFERENCE OF THE VALVE ELEMENT (5) IS ALLOWED TO BURST STABLY AND ACCURATELY AT A PRESCRIBED PRESSURE TO THEREBY FORM A VALVE OPENING PORTION (7) SO THAT THE INTERNAL GAS OF THE BATTERY CAN BE DISCHARGED. THUS, THE BATTERY CAN PREVIOUSLY BE PREVENTED FROM EXPLODING.(FIG. 2)
MYPI98002042A 1997-05-09 1998-05-07 Closed battery and closing member MY124164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13447597 1997-05-09

Publications (1)

Publication Number Publication Date
MY124164A true MY124164A (en) 2006-06-30

Family

ID=15129200

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI98002042A MY124164A (en) 1997-05-09 1998-05-07 Closed battery and closing member

Country Status (7)

Country Link
US (1) US6423440B1 (en)
JP (1) JP3433325B2 (en)
KR (1) KR100501846B1 (en)
CN (1) CN1255243A (en)
AU (1) AU7235098A (en)
MY (1) MY124164A (en)
WO (1) WO1998052237A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY123287A (en) * 1998-11-19 2006-05-31 Toyo Kohan Co Ltd Safety device for closed battery and closed battery with it
KR100578805B1 (en) * 2004-03-24 2006-05-11 삼성에스디아이 주식회사 Cap assembly and secondary battery having the same
US7875376B2 (en) * 2006-05-24 2011-01-25 Eveready Battery Company, Inc. Battery can having off-center C-shaped vent
KR100880321B1 (en) * 2006-12-14 2009-01-28 삼성에스디아이 주식회사 Secondary battery
JP6920661B2 (en) * 2016-12-27 2021-08-18 パナソニックＩｐマネジメント株式会社 Battery module
CN113258180A (en) * 2021-04-28 2021-08-13 马鞍山南实九九科技有限公司 Nanometer lithium cell apron of moulding plastics
CN118572206B (en) * 2024-06-19 2025-01-24 河源市聚芯源科技有限公司 A lithium-ion battery aluminum shell cell structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803136A (en) * 1985-09-30 1989-02-07 Emerson Electric Co. Method of manufacturing a safety vented container and product
BR8604254A (en) * 1985-09-30 1987-04-28 Emerson Electric Co SAFETY BREATHING PROCESS IN HERMETICALLY SEALED CONTAINER LID, SAFETY BREATHING MANUFACTURE PROCESS IN METAL COVERS FOR HERMETICALLY SEALED BATTERY CONTAINERS, HERMOTICALLY HERMITICALLY SEALED CONTAINER
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
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

Also Published As

Publication number Publication date
US6423440B1 (en) 2002-07-23
CN1255243A (en) 2000-05-31
AU7235098A (en) 1998-12-08
KR20010012398A (en) 2001-02-15
KR100501846B1 (en) 2005-07-20
JP3433325B2 (en) 2003-08-04
WO1998052237A1 (en) 1998-11-19

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