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KR20150014792A - Battery Module and Battery Pack Having External Input-Output Terminal Employed with Safety Member - Google Patents

Battery Module and Battery Pack Having External Input-Output Terminal Employed with Safety Member Download PDF

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Publication number
KR20150014792A
KR20150014792A KR1020130090464A KR20130090464A KR20150014792A KR 20150014792 A KR20150014792 A KR 20150014792A KR 1020130090464 A KR1020130090464 A KR 1020130090464A KR 20130090464 A KR20130090464 A KR 20130090464A KR 20150014792 A KR20150014792 A KR 20150014792A
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KR
South Korea
Prior art keywords
battery
safety member
output terminal
external input
battery module
Prior art date
Application number
KR1020130090464A
Other languages
Korean (ko)
Inventor
오세운
김석구
이은주
최복규
김제영
Original Assignee
주식회사 엘지화학
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Priority to KR1020130090464A priority Critical patent/KR20150014792A/en
Publication of KR20150014792A publication Critical patent/KR20150014792A/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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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
    • H01M50/543—Terminals
    • 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
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • 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
    • H01M2200/101—Bimetal
    • 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)
  • Battery Mounting, Suspending (AREA)

Abstract

Provided is a battery module which includes a module case, a battery cell stacking body which is formed by successively stacking battery cells and is embedded in the module case, and an external input/output terminal which includes a safety member and is formed in a side of the module case.

Description

안전 부재가 형성된 외부 입출력 단자를 포함하는 전지모듈 및 전지팩 {Battery Module and Battery Pack Having External Input-Output Terminal Employed with Safety Member}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery module and a battery pack including an external input /

본 발명은 안전 부재가 형성된 외부 입출력 단자를 포함하는 전지모듈 및 전지팩에 관한 것이다.The present invention relates to a battery module and a battery pack including an external input / output terminal formed with a safety member.

모바일 기기에 대한 기술 개발과 수요가 증가함에 따라 에너지원으로서의 이차전지의 수요가 급격히 증가하고 있으며, 그러한 이차전지 중에서도 높은 에너지 밀도와 방전 전압을 가진 리튬 이차전지에 대한 많은 연구가 행해지고 있고 또한 상용화되어 널리 사용되고 있다.As technology development and demand for mobile devices are increasing, the demand for secondary batteries as energy sources is rapidly increasing. Among such secondary batteries, many studies have been made on lithium secondary batteries having high energy density and discharge voltage, Widely used.

일반적으로 이차전지는 양극, 음극 및 상기 양극과 음극 사이에 개재되는 분리막으로 구성된 전극조립체를 적층하거나 권취한 상태로 금속 캔 또는 라미네이트 시트의 전지 케이스에 내장한 다음 전해액을 주입하거나 함침시키는 것으로 구성되어 있다.Generally, a secondary battery includes an electrode assembly composed of a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, which is laminated or wrapped in a battery case of a metal can or a laminate sheet and then injected or impregnated with an electrolyte solution have.

이 같은 이차전지는 고용량 및 고출력의 디바이스에 사용되기 위해, 다수의 이차전지를 전기적으로 연결하여 전지모듈 또는 전지팩을 구성한다. 이와 같이 구성된 전지모듈 또는 전지팩은 충방전 과정에서 과충전, 과전류, 과전압 등에 의해서 내부의 온도가 상승하고, 이로 인해 전지의 안전성이 저하되는 문제가 있다.In order to use the secondary battery in a high-capacity and high-output device, a plurality of secondary batteries are electrically connected to form a battery module or a battery pack. In the battery module or the battery pack having such a structure, the internal temperature rises due to overcharging, overcurrent, overvoltage, and the like during the charging / discharging process, thereby deteriorating the safety of the battery.

따라서, 상기와 같은 문제점을 해결하기 위한 전지모듈 및 전지팩의 개발이 필요한 실정이다.Therefore, it is necessary to develop a battery module and a battery pack to solve the above problems.

본 발명은 상기와 같은 종래기술의 문제점과 과거로부터 요청되어온 기술적 과제를 해결하는 것을 목적으로 한다.SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems of the prior art and the technical problems required from the past.

본 발명의 목적은, 과충전, 과전류, 과전압 등에 의해서 전지 내부의 온도가 증가 하는 경우, 전류의 공급을 차단하여 안전성을 담보할 수 있는 전지모듈 및 전지팩을 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a battery module and a battery pack capable of securing safety by shutting off the supply of current when an internal temperature of the battery increases due to overcharging, overcurrent, overvoltage or the like.

따라서, 상기와 같은 목적을 달성하기 위한 본 발명에 따른 전지모듈은, According to an aspect of the present invention,

모듈 케이스;Module case;

상기 모듈 케이스에 다수의 전지셀들이 순차적으로 적층되어 내장되는 전지셀 적층체; 및A battery cell stack body in which a plurality of battery cells are sequentially stacked and embedded in the module case; And

안전 부재를 포함하며, 상기 모듈 케이스의 일측에 형성되어 있는 외부 입출력 단자;An external input / output terminal formed on one side of the module case, the external input / output terminal including a safety member;

를 포함하고 있을 수 있다.As shown in FIG.

즉, 본 발명에 따른 전지모듈은, 외부 입출력 단자에 안전 부재를 포함함으로써, 과충전, 과전류, 과전압 등에 의해서 전지 내부의 온도가 증가하는 경우, 전류의 공급을 차단하여 안전성을 담보할 수 있다.That is, according to the battery module of the present invention, when the temperature inside the battery increases due to overcharging, overcurrent, overvoltage or the like by including the safety member in the external input / output terminal, the supply of the current can be blocked to secure safety.

상기 안전 부재는 바이메탈(bimetal)일 수 있지만, 이것만으로 한정되는 것은 아니다.The safety member may be bimetal, but is not limited thereto.

상기 안전 부재는, 외부 디바이스와 접촉하는 부위에 형성되어 있을 수 있고, 반대로, 전지셀 적층체와 접촉하는 부위에 형성되어 있을 수 있다.The safety member may be formed at a portion contacting the external device, or may be formed at a portion contacting the battery cell stack.

상기 전지셀은 금속층과 수지층을 포함하는 라미네이트 시트의 케이스에 전극 적층체를 내장한 후 외주면을 실링한 구조로 이루어져 있을 수 있다.The battery cell may have a structure in which an electrode stacked body is embedded in a case of a laminated sheet including a metal layer and a resin layer, and then an outer circumferential surface is sealed.

또한, 상기 전지셀은 프레임 구조의 전지 카트리지 내부에 장착되어 있는 구조일 수 있다.Also, the battery cell may have a structure in which the battery cell is mounted inside a frame-shaped battery cartridge.

상기 카트리지는 전지셀의 양 측면 중 적어도 일 측면이 개방된 상태로 전지셀의 외주면을 고정하는 적어도 한 쌍의 판상형 프레임으로 이루어져 있을 수 있다.The cartridge may comprise at least a pair of plate-shaped frames for fixing the outer circumferential surface of the battery cell with at least one side of both sides of the battery cell being open.

본 발명은 또한, The present invention also relates to

팩 케이스;Pack case;

다수의 전지모듈들이 전기적으로 연결된 상태로 적층되는 전지모듈 어셈블리; 및A battery module assembly in which a plurality of battery modules are stacked in an electrically connected state; And

안전 부재를 포함하며, 상기 팩 케이스의 일측에 형성되어 있는 외부 입출력 단자;An external input / output terminal formed on one side of the pack case, the external input / output terminal including a safety member;

를 포함하는 것을 특징으로 하는 전지팩을 제공한다.And a battery pack.

상기 안전 부재는 바이메탈(bimetal)일 수 있지만, 이것만으로 한정되는 것은 아니다.The safety member may be bimetal, but is not limited thereto.

상기 안전 부재는, 외부 디바이스와 접촉하는 부위에 형성되어 있을 수 있고, 반대로, 전지모듈 어셈블리와 접촉하는 부위에 형성되어 있을 수 있다.The safety member may be formed at a portion in contact with the external device, or may be formed at a portion in contact with the battery module assembly.

본 발명은 또한, 상기 전지팩을 동력원으로 포함하는 것을 특징으로 하는 디바이스를 제공하고, 상기 디바이스는 구체적으로, 휴대폰, 휴대용 컴퓨터, 스마트폰, 스마트 패드, 넷북, LEV(Light Electronic Vehicle), 전기자동차, 하이브리드 전기자동차, 플러그-인 하이브리드 전기자동차, 및 전력저장장치로 이루어진 군에서 선택될 수 있다.The present invention also provides a device comprising the battery pack as a power source, wherein the device is specifically a mobile phone, a portable computer, a smart phone, a smart pad, a netbook, a LEV (Light Electronic Vehicle) , A hybrid electric vehicle, a plug-in hybrid electric vehicle, and a power storage device.

이러한 디바이스의 구조 및 제작 방법은 당업계에 공지되어 있으므로, 본 명세서에서는 그에 대한 자세한 설명을 생략한다.The structure and manufacturing method of such a device are well known in the art, so a detailed description thereof will be omitted herein.

이상에서 설명한 바와 같이, 본 발명에 따른 전지모듈 및 전지팩은, 외부 입출력 단자에 안전 부재를 포함함으로써, 과충전, 과전류, 과전압 등에 의해서 전지 내부의 온도가 증가하는 경우, 전류의 공급을 차단하여 안전성을 담보할 수 있다.As described above, the battery module and the battery pack according to the present invention include the safety member in the external input / output terminal, so that when the internal temperature of the battery increases due to overcharging, overcurrent, overvoltage, etc., Can be secured.

도 1은 본 발명의 하나의 실시예에 따른 전지모듈의 모식도이다.1 is a schematic diagram of a battery module according to an embodiment of the present invention.

이하, 도면을 참조하여 본 발명을 더욱 자세히 설명하지만, 본 발명의 범주가 그것으로 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the drawings, but the scope of the present invention is not limited thereto.

도 1에는 본 발명의 하나의 실시예에 따른 전지모듈의 모식도가 도시되어 있다.1 is a schematic diagram of a battery module according to an embodiment of the present invention.

도 1을 참조하면, 전지모듈(10)은 모듈 케이스(100)와, 전지셀 적층체(200)와, 외부 입출력 단자(300)로 이루어져 있다.Referring to FIG. 1, the battery module 10 includes a module case 100, a battery cell stack 200, and an external input / output terminal 300.

외부 입출력 단자(300)는 외부 디바이스(20)와 접촉하는 부위가 바이메탈(310)로 이루어져 있다.The external input / output terminal 300 has a portion where the external device 20 is in contact with the bimetal 310.

따라서, 과충전, 과전류, 과전압 등에 의해서 내부의 온도가 상승하는 경우에, 바이메탈(310)이 휘게 되어, 외부 디바이스(20)와 전지모듈(10) 사이의 전기적 연결이 끊어진다.
Therefore, when the internal temperature rises due to overcharging, overcurrent, overvoltage, etc., the bimetal 310 is bent and the electrical connection between the external device 20 and the battery module 10 is cut off.

이상 본 발명의 실시예에 따른 도면을 참조하여 설명하였지만, 본 발명이 속한 분야에서 통상의 지식을 가진 자라면 상기 내용을 바탕으로 본 발명의 범주 내에서 다양한 응용 및 변형을 행하는 것이 가능할 것이다.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims (10)

모듈 케이스;
상기 모듈 케이스에 다수의 전지셀들이 순차적으로 적층되어 내장되는 전지셀 적층체; 및
안전 부재를 포함하며, 상기 모듈 케이스의 일측에 형성되어 있는 외부 입출력 단자;
를 포함하는 것을 특징으로 하는 전지모듈.Module case;
A battery cell stack body in which a plurality of battery cells are sequentially stacked and embedded in the module case; And
An external input / output terminal formed on one side of the module case, the external input / output terminal including a safety member;
The battery module comprising: 제 1 항에 있어서, 상기 안전 부재는 바이메탈(bimetal)인 것을 특징으로 하는 전지모듈.The battery module according to claim 1, wherein the safety member is bimetal. 제 1 항에 있어서, 상기 안전 부재는, 외부 디바이스와 접촉하는 부위에 형성되어 있는 것을 특징으로 하는 전지모듈.The battery module according to claim 1, wherein the safety member is formed at a portion in contact with an external device. 제 1 항에 있어서, 상기 전지셀은 금속층과 수지층을 포함하는 라미네이트 시트의 케이스에 전극 적층체를 내장한 후 외주면을 실링한 구조로 이루어진 것을 특징으로 하는 전지모듈.The battery module according to claim 1, wherein the battery cell has a structure in which an electrode stack body is embedded in a case of a laminate sheet including a metal layer and a resin layer, and then an outer circumferential surface is sealed. 제 1 항에 있어서, 상기 전지셀은 프레임 구조의 전지 카트리지 내부에 장착되어 있는 것을 특징으로 하는 전지모듈.The battery module according to claim 1, wherein the battery cell is mounted inside a frame-shaped battery cartridge. 제 5 항에 있어서, 상기 카트리지는 전지셀의 양 측면 중 적어도 일 측면이 개방된 상태로 전지셀의 외주면을 고정하는 적어도 한 쌍의 판상형 프레임으로 이루어져 있는 것을 특징으로 하는 전지모듈.The battery module according to claim 5, wherein the cartridge comprises at least a pair of plate-shaped frames for fixing the outer circumferential surface of the battery cell with at least one side of both sides of the battery cell being open. 팩 케이스;
다수의 전지모듈들이 전기적으로 연결된 상태로 적층되는 전지모듈 어셈블리; 및
안전 부재를 포함하며, 상기 팩 케이스의 일측에 형성되어 있는 외부 입출력 단자;
를 포함하는 것을 특징으로 하는 전지팩.Pack case;
A battery module assembly in which a plurality of battery modules are stacked in an electrically connected state; And
An external input / output terminal formed on one side of the pack case, the external input / output terminal including a safety member;
And the battery pack (10). 제 7 항에 있어서, 상기 안전 부재는 바이메탈(bimetal)인 것을 특징으로 하는 전지팩.The battery pack according to claim 7, wherein the safety member is a bimetal. 제 7 항에 있어서, 상기 안전 부재는, 외부 디바이스와 접촉하는 부위에 형성되어 있는 것을 특징으로 하는 전지팩.The battery pack according to claim 7, wherein the safety member is formed at a portion in contact with the external device. 제 9 항에 따른 전지팩을 동력원으로 사용하는 디바이스.A device using the battery pack according to claim 9 as a power source.
KR1020130090464A 2013-07-30 2013-07-30 Battery Module and Battery Pack Having External Input-Output Terminal Employed with Safety Member KR20150014792A (en)

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