KR970054691A - Lithium battery case - Google Patents

Lithium battery case Download PDF

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Publication number
KR970054691A
KR970054691A KR1019950054858A KR19950054858A KR970054691A KR 970054691 A KR970054691 A KR 970054691A KR 1019950054858 A KR1019950054858 A KR 1019950054858A KR 19950054858 A KR19950054858 A KR 19950054858A KR 970054691 A KR970054691 A KR 970054691A
Authority
KR
South Korea
Prior art keywords
case
lithium battery
plate
electrolyte
embossing
Prior art date
Application number
KR1019950054858A
Other languages
Korean (ko)
Inventor
변성광
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950054858A priority Critical patent/KR970054691A/en
Publication of KR970054691A publication Critical patent/KR970054691A/en

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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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • 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
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • 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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

본 발명은 리튬전지의 케이스바닥부를 엠보싱 형상화하고, 그 하부에 플레이트를 부착하여 전해액에 열과충격이 가해져서 가스가 팽창하는 경우 가스의 직접적인 분사를 막아 폭발을 방지하는데 그 목적이 있다.An object of the present invention is to emboss the case bottom portion of a lithium battery, and attach a plate to the bottom thereof to prevent explosion by preventing direct injection of gas when the gas is expanded due to heat and shock applied to the electrolyte.

본 발명은 종래의 리튬전지에 있어서, 케이스내의 전해액이 팽창되었을 경우, 그 팽창압력에 의해 알루미늄호일이 파열되도록 하였는데, 여기에다 케이스의 하부를 방사형의 엠보싱 형상화하고, 그 밑에 벤트홀을 갖춘 플레이트를 설치하는 것을 특징으로 한다.In the conventional lithium battery, when the electrolyte in the case is expanded, the aluminum foil is ruptured by the expansion pressure, and the lower part of the case is radially embossed, and a plate having a vent hole is provided thereunder. Characterized in that.

이에 따라 전해액이 팽창되는 상황이 발생될 경우 케이스바닥부의 엠보싱이 정연하게 파열되고, 플레이트가 부착되어 있어서 벤트홀을 통한 직접적인 가스의 분사가 방지되어서 상하2개소로 내부의 폭발에너지를 분출시킴으로써 안전수단을 상부뿐만 아니라 하부에도 추가적으로 부가하여 안정성을 높임으로써 리튬전지의 폭발을 방지할 수 있는 효과가 있다.As a result, when the electrolyte is expanded, the embossing of the case bottom is ruptured squarely, and the plate is attached to prevent direct gas injection through the vent hole. It is added to the lower portion as well as the upper portion to increase the stability has the effect of preventing the explosion of the lithium battery.

Description

리튬전지의 케이스Lithium battery case

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 리튬전지의 단면도이다.3 is a cross-sectional view of a lithium battery according to the present invention.

제4도(가)는 본 발명의 일실시예에 따른 케이스 바닥부의 사시도 (나)는 케이스 바닥부 평면도이다.4 (a) is a perspective view of the case bottom part (b) according to an embodiment of the present invention is a plan view of the case bottom part.

제5도는 케이스 바닥부의 단면도이다.5 is a cross-sectional view of the case bottom portion.

Claims (5)

상단에 개구부(62) 및 하단에 플렌지부(61)를 형성한 케이스(60), 케이스의 개구부를 통하여 플렌지부에 재치되는 양극단자를 겸한 캡(10), 상기 캡의 하단에 설치되는 커버(30), 케이스와 캡 사이에 개재되는 가스킷(40), 격리판을 개재하여 양극판과 음극판이 나선상으로 감아져서 케이스 내에 전해질을 충진시킨 원통형 리튬전지에 있어서, 상기 케이스 내의 전해액(70)이 팽창되었을 경우 그 팽창압력을 하부로 분출시키기 위해 소정의 형상으로 케이스의 하부에 엠보싱(81)이 형성된 것을 특징으로 하는 리튬전지.A case 60 having an opening 62 at an upper end and a flange 61 at a lower end thereof, a cap 10 serving as an anode terminal mounted on the flange portion through the opening of the case, and a cover 30 provided at the lower end of the cap. In the case of a cylindrical lithium battery in which a positive electrode plate and a negative electrode plate are wound spirally through a gasket 40 interposed between a case and a cap and a separator plate, and the electrolyte is filled in the case, the electrolyte solution 70 in the case is expanded. Lithium battery, characterized in that the embossing (81) is formed in the lower portion of the case in a predetermined shape to eject the expansion pressure to the lower. 제1항에 있어서, 상기 엠보싱(81)이 케이스(60)의 하부의 바닥부(80)에 형성된 것을 특징으로 하는 리튬전지.According to claim 1, wherein the embossing (81) is a lithium battery, characterized in that formed in the bottom portion (80) of the lower portion of the case (60). 제2항에 있어서, 엠보싱의 소정의 형상은 케이스(60)의 바닥부(80)가 그 중심점이 오목한 경우 그 중심점을 기준으로 방사형으로 된 것을 특징으로 하는 리튬전지.The lithium battery according to claim 2, wherein the predetermined shape of the embossing is radial with respect to the center point when the bottom portion (80) of the case (60) has its center point concave. 제2항에 있어서, 가스가 직접 분사되는 것을 막기 위해 케이스(60)의 바닥부(80)의 밑면에 소정의 틈새를 두고 부착되고, 벤트홀이 형성된 플레이트를 지니는 것을 특징으로 하는 리튬전지.The lithium battery according to claim 2, wherein the lithium battery has a plate having a predetermined gap and attached to a bottom surface of the bottom portion 80 of the case 60 to prevent the gas from being directly injected. 제1항 또는 제2항에 있어서, 상기 엠보싱(81)부분이 다른 부분에 대해 0.1내지 0.2배의 두께인 것을 특징으로 하는 리튬전지.The lithium battery according to claim 1 or 2, wherein the embossed portion is 0.1 to 0.2 times the thickness of the other portion. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950054858A 1995-12-22 1995-12-22 Lithium battery case KR970054691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950054858A KR970054691A (en) 1995-12-22 1995-12-22 Lithium battery case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950054858A KR970054691A (en) 1995-12-22 1995-12-22 Lithium battery case

Publications (1)

Publication Number Publication Date
KR970054691A true KR970054691A (en) 1997-07-31

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Application Number Title Priority Date Filing Date
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Country Status (1)

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KR (1) KR970054691A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100601508B1 (en) * 2004-09-22 2006-07-19 삼성에스디아이 주식회사 Secondary battery increased safety about horizontal pressure
KR100670493B1 (en) * 2005-03-24 2007-01-16 삼성에스디아이 주식회사 Can for Lithium Secondary Battery and Lithium Secondary Battery using the Same
US8551645B2 (en) 2006-02-20 2013-10-08 Samsung Sdi Co., Ltd. Can for cylindrical lithium rechargeable battery and cylindrical lithium rechargeable battery using the same
US9136507B2 (en) 2005-03-24 2015-09-15 Samsung Sdi Co., Ltd. Can and lithium secondary battery using the same
KR20190033026A (en) * 2017-09-20 2019-03-28 주식회사 엘지화학 Cylindrical Secondary Battery Consisting of Curved Bottom
US10644285B2 (en) 2016-01-07 2020-05-05 Lg Chem, Ltd. Secondary battery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100601508B1 (en) * 2004-09-22 2006-07-19 삼성에스디아이 주식회사 Secondary battery increased safety about horizontal pressure
KR100670493B1 (en) * 2005-03-24 2007-01-16 삼성에스디아이 주식회사 Can for Lithium Secondary Battery and Lithium Secondary Battery using the Same
US9136507B2 (en) 2005-03-24 2015-09-15 Samsung Sdi Co., Ltd. Can and lithium secondary battery using the same
US8551645B2 (en) 2006-02-20 2013-10-08 Samsung Sdi Co., Ltd. Can for cylindrical lithium rechargeable battery and cylindrical lithium rechargeable battery using the same
US10644285B2 (en) 2016-01-07 2020-05-05 Lg Chem, Ltd. Secondary battery
KR20190033026A (en) * 2017-09-20 2019-03-28 주식회사 엘지화학 Cylindrical Secondary Battery Consisting of Curved Bottom

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E601 Decision to refuse application