KR970031009A - Lithium Battery with Heat Dissipation Net - Google Patents

Lithium Battery with Heat Dissipation Net Download PDF

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Publication number
KR970031009A
KR970031009A KR1019950041771A KR19950041771A KR970031009A KR 970031009 A KR970031009 A KR 970031009A KR 1019950041771 A KR1019950041771 A KR 1019950041771A KR 19950041771 A KR19950041771 A KR 19950041771A KR 970031009 A KR970031009 A KR 970031009A
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KR
South Korea
Prior art keywords
heat dissipation
lithium battery
case
dissipation net
rupture disk
Prior art date
Application number
KR1019950041771A
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Korean (ko)
Other versions
KR0153364B1 (en
Inventor
변성광
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019950041771A priority Critical patent/KR0153364B1/en
Publication of KR970031009A publication Critical patent/KR970031009A/en
Application granted granted Critical
Publication of KR0153364B1 publication Critical patent/KR0153364B1/en

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    • 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
    • H01M50/383—Flame arresting or ignition-preventing means
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • 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
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/394—Gas-pervious parts or elements
    • 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
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/106—PTC
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Primary Cells (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

본 발명은 전해액의 팽창에 의하여 발생된 가스와 불꽃이 캡의 벤트홀 외부로 분출되기 전에 방열수단을 통과하도록 하여 불꽃의 분출력을 감소시킬 수 있는 방열망이 장착된 리튬건전지를 제공하는 데에 그 목적이 있다. 본 발명은 종래의 리튬 건전지에 있어서, 케이스 내의 전해액의 팽창으로 분출되는 불꽃을 냉각시키고 폭발력을 감소시키기 위하여, 링 플레이트와 파열디스크 사이에 메쉬(mesh)형 구조의 방열망을 구비하는 것을 특징으로 한다. 또한, 불꽃의 냉각 효과를 향상시키기 위하여, 상기 메쉬(mesh)형 구조의 방열망과 리 플레이트 사이에 다수의홀 (hole)을 갖는 홀형 방열판을 추가로 배치시킬 수도 있다.The present invention is to provide a lithium battery with a heat dissipation net that can reduce the output power of the spark by passing through the heat dissipation means before the gas and spark generated by the expansion of the electrolyte is ejected to the outside of the vent hole of the cap The purpose is. The present invention is characterized in that in the conventional lithium battery, a mesh-type heat dissipation network is provided between the ring plate and the rupture disk to cool the flame ejected by the expansion of the electrolyte in the case and reduce the explosive force. do. In addition, in order to improve the cooling effect of the flame, a hole type heat sink having a plurality of holes may be further disposed between the mesh structure and the heat sink.

이에 따라, 열과 충격에 의해 케이스 내의 전해액이 팽창되어 파열디스크를 파열시키고 불꽃이 분출된 경우, 캡의 벤트홀 외부로 치솟는 불꽃의 높이를 감소되며, 또한, 폭발이 발생될 경우에도 감소된 압력에 의하여 폭발력이 감소됨으로써, 리튬건전지의 안전성을 향상시키는 효과가 있다.Accordingly, when the electrolyte in the case expands due to heat and impact to rupture the rupture disk and the flame is ejected, the height of the flame that rises out of the vent hole of the cap is reduced, and the pressure is reduced even when an explosion occurs. As a result, the explosion force is reduced, thereby improving the safety of the lithium battery.

Description

방열망이 장착된 리튬건전지Lithium Battery with Heat Dissipation Net

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

제1도는 종래 리튬건전지의 분해 사시도,1 is an exploded perspective view of a conventional lithium battery,

제4도는 본 발명의 일 일시예에 따른 리튬건전지의부분 단면도로써, (a)는 리튬건전지의 상단부 단면도이고, (b)는 메쉬 (mesh)형 방열망의 평면도,4 is a partial cross-sectional view of a lithium battery according to an embodiment of the present invention, (a) is a cross-sectional view of the upper end of the lithium battery, (b) is a plan view of a mesh-type heat dissipation network,

제5도는 본 발명의 다른 실시예에 따른 리튬건전지의 부분 단면도로써, (a)는 리튬건전지의 상단부 단면도이고, (b)는 홀(hole)형 방열판의 평면도.5 is a partial cross-sectional view of a lithium battery according to another embodiment of the present invention, (a) is a top cross-sectional view of the lithium battery, and (b) is a plan view of a hole-type heat sink.

Claims (3)

소정의 임계값 이상의 압력에 의해 파열되는 파열디스크(33), 완충 역할을 하고, 상기 파열디스크(33)의 상부면에 씌워지며, 중앙개구부를 갖는 링 플레이트(32), 상기 파열디스크(33)와 링 플레이트(32)를 내측에 고정시키며 중앙관통공(31)을 갖는 커버(30), 상기 커버(30)의 상부면에 배치되며 중앙관통공(21) 구조를 갖는 피티씨소자(20), 상기 피티씨소자(20)의 상부면에 배치되고, 양극의 접점 역할을 하며, 중앙 벤트홀(11)을 갖는 캡(10), 상단에 개구부(62)를 형성하고 상측벽부의 내측으로 돌출부(63)가 형성되며 전해액(70)이 충전되는 케이스(60), 격리판을 개재하여 양극판과 음극판이 나선상으로 감아져서 케이스(60) 내의 상기 돌출부(63) 하부에 수납되는 극판군(50), 상기 파열디스크(33), 링 플레이트(32), 커버(30), 피티씨소자(20) 및 캡(10)을 고정시켜 잡아주며 케이스(60)의 내측 돌출부 상부에 설치되어 케이스(60)의 내부를 밀봉시키는 가스켓(40)을 구비하는 리튬건전지에 있어서, 상기 케이스(60) 내의 전해액의 팽창으로 인한 파열디스크(33)의 파열시, 캡(10)의 벤트홀(11)외부로 분출되는 불꽃을 냉각시키고 폭발력을 감소시키는 방열망을 구비하는 것을 특징으로 하는 방열망(100)이 장착된 리튬건전지.Rupture disk 33 is ruptured by a pressure equal to or more than a predetermined threshold, and acts as a buffer, is covered on the upper surface of the rupture disk 33, ring plate 32 having a central opening, the rupture disk 33 And the ring plate 32 to the inside and the cover 30 having a central through hole 31, disposed on the upper surface of the cover 30, the PTC element 20 having a structure of the central through hole 21, The cap 10 is disposed on the upper surface of the PTC element 20, serves as a contact point of the anode, and has a cap 10 having a central vent hole 11, an opening 62 formed at an upper end thereof, and a protrusion 63 inside the upper wall part 63. Is formed and the positive electrode plate and the negative electrode plate are spirally wound through the case 60 and the separator plate in which the electrolyte 70 is filled, and the pole plate group 50 accommodated below the protruding portion 63 in the case 60. Fixing and holding the rupture disk 33, the ring plate 32, the cover 30, the PTC element 20 and the cap 10 In the lithium battery having a gasket 40 installed on the inner protrusion of the case 60 to seal the inside of the case 60, when the rupture disk 33 ruptures due to the expansion of the electrolyte in the case 60 , Lithium battery equipped with a heat dissipation net 100, characterized in that it comprises a heat dissipation net to cool the flame ejected to the outside of the vent hole 11 of the cap 10 and reduce the explosive force. 제1항에 있어서, 상기 방열망(100)은 링 플레이트(32)와 파열디스크(33) 사이에 배치되는 메쉬(mesh)형 구조의 방열망(100)인 것을 특징으로 하는 방열망이 장착된 리튬건전지.The heat dissipation net according to claim 1, wherein the heat dissipation net 100 is a heat dissipation net 100 of a mesh structure disposed between the ring plate 32 and the bursting disc 33. Lithium battery. 제2항에 있어서, 케이스(60) 내의 전해액의 팽창시 발생되는 불꽃의 냉각 효과를 향상시키기 위하여, 상기 메쉬(mesh)형 구조의 방열망(100)과 링플레이트(32) 사이에 다수의 홀(hole)을 갖는 홀형 방열판(100A)을 추가로 구비하는 것을 특징으로 하는 방열망이 장착된 리튬건전지.According to claim 2, In order to improve the cooling effect of the spark generated during the expansion of the electrolyte in the case 60, a plurality of holes between the heat dissipation net 100 and the ring plate 32 of the mesh structure Lithium battery equipped with a heat sink, characterized in that it further comprises a hole-shaped heat sink (100A) having a (hole). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950041771A 1995-11-17 1995-11-17 Lithium dry cell having an anti-heat net KR0153364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950041771A KR0153364B1 (en) 1995-11-17 1995-11-17 Lithium dry cell having an anti-heat net

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950041771A KR0153364B1 (en) 1995-11-17 1995-11-17 Lithium dry cell having an anti-heat net

Publications (2)

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KR970031009A true KR970031009A (en) 1997-06-26
KR0153364B1 KR0153364B1 (en) 1998-11-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190043252A (en) * 2017-10-18 2019-04-26 주식회사 엘지화학 Secondary cell

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100913122B1 (en) * 2009-02-16 2009-08-19 이종명 Heat sink type led flood light
KR102337492B1 (en) * 2017-04-07 2021-12-09 삼성에스디아이 주식회사 Secondary battery
KR102277733B1 (en) 2018-01-29 2021-07-16 주식회사 엘지에너지솔루션 Electrode mounting unit and electrode drying device including the same
KR20200143977A (en) 2019-06-17 2020-12-28 주식회사 엘지화학 Battery Module Comprising Base Plate having Gas Discharge Passage and Battery Pack and Energy Storage System
KR20220055978A (en) * 2020-10-27 2022-05-04 주식회사 엘지에너지솔루션 Cap assembly and secondary battery including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190043252A (en) * 2017-10-18 2019-04-26 주식회사 엘지화학 Secondary cell

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