WO2018105847A1 - 원통형 이차전지 모듈 - Google Patents
원통형 이차전지 모듈 Download PDFInfo
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- WO2018105847A1 WO2018105847A1 PCT/KR2017/008253 KR2017008253W WO2018105847A1 WO 2018105847 A1 WO2018105847 A1 WO 2018105847A1 KR 2017008253 W KR2017008253 W KR 2017008253W WO 2018105847 A1 WO2018105847 A1 WO 2018105847A1
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- WIPO (PCT)
- Prior art keywords
- secondary battery
- cylindrical secondary
- bus bar
- cell
- battery module
- Prior art date
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
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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
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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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
- 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
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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
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
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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
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a cylindrical secondary battery module, and more particularly, to a cylindrical secondary battery module that can disconnect the electrical connection of the secondary battery cell when an abnormal phenomenon occurs in any one of a plurality of interconnected cylindrical secondary battery cells. .
- Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
- the lithium secondary battery includes a secondary battery cell in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator interposed therebetween, and an exterior material for sealing and storing the secondary battery cell together with an electrolyte, that is, a battery case.
- the lithium secondary battery is composed of a positive electrode, a negative electrode, a separator and an electrolyte interposed therebetween, and a lithium ion battery (LIB), a lithium polymer battery (Polymer Lithium Ion Battery) depending on which of the positive electrode active material and the negative electrode active material are used. , PLIB) and the like.
- the electrode of these lithium secondary batteries is formed by apply
- the secondary battery may be classified into a cylindrical shape, a square shape, or a pouch type according to the shape of the exterior material in which the battery is accommodated.
- the cylindrical secondary battery may be used in the form of a secondary battery module by connecting a plurality of secondary battery cells in series or in parallel.
- an abnormal phenomenon such as overpressure or overheating occurs in any one of the plurality of secondary battery cells connected to each other, other secondary battery cells which are normally operating also become unstable.
- an object of the present invention is to provide a cylindrical secondary battery module that can disconnect the electrical connection of the secondary battery cell when an abnormal phenomenon such as overpressure or overheating occurs in any one of the plurality of cylindrical secondary battery cells connected to each other.
- the second member is provided to disconnect the electrical connection in the event of an abnormal phenomenon to provide a cylindrical secondary battery module that can be maintained from an external vibration or shock.
- a cylindrical secondary battery cell having a battery case that is accommodated in the electrode assembly and the electrolyte and a cell cap coupled to the positive terminal of the battery case; A bus bar in which hollows are formed and interconnecting a plurality of cylindrical secondary battery cells; And disposed in the hollow of the bus bar, coupled to the cylindrical secondary battery cell and electrically connected to the bus bar, and separated from the bus bar when an abnormality occurs in the cylindrical secondary battery cell, between the plurality of cylindrical secondary battery cells.
- Cylindrical secondary battery modules including a disconnection unit configured to be disconnected from the electrical connection may be provided.
- disconnection portion may be coupled to the cell cap of the cylindrical secondary battery cell.
- An insulating member may be interposed between the bus bar and the cylindrical secondary battery cell.
- the disconnection portion the first member disposed in the hollow of the bus bar coupled to the cell cap; And a second member electrically connected to the first member and the bus bar, respectively.
- the second member may include a first connection point connected to the first member; A second connection point connected to the bus bar; And a round part connected to the second connection point to be rounded from the first connection point.
- the second member may have a width in a predetermined range so that the connection to the bus bar may be disconnected by a predetermined range of pressure.
- the second member may have a width in a preset range so that the connection with the bus bar may be disconnected at a temperature in a predetermined range.
- the second member may be made of copper or aluminum so as to break when overheating.
- Embodiments of the present invention have an effect that the secondary battery cell can be electrically disconnected by a short circuit provided in the secondary battery cell when an abnormal phenomenon such as overpressure or overheating occurs in any one of the plurality of secondary battery cells connected to each other. .
- FIG. 1 is a partial cross-sectional view of a cylindrical secondary battery cell in a cylindrical secondary battery module according to a first embodiment of the present invention.
- FIG. 2 is a schematic overall perspective view of a cylindrical secondary battery module according to a first embodiment of the present invention.
- FIG 3 is a plan view of a cylindrical secondary battery module according to a first embodiment of the present invention.
- FIG. 4 is a perspective view illustrating a state in which a cell cap and a single unit are separated from a cylindrical secondary battery cell in the cylindrical secondary battery module according to the first embodiment of the present invention.
- FIG. 5 is a plan view of a cylindrical secondary battery module according to a second embodiment of the present invention.
- FIG. 6 is a plan view of a cylindrical secondary battery module according to a third embodiment of the present invention.
- the term 'bonding' or 'connection' is used indirectly or indirectly coupled to another member through a joint member as well as when one member and the other member are directly joined or directly connected. It also includes the case where it is connected.
- FIG. 1 is a partial cross-sectional view of a cylindrical secondary battery cell in a cylindrical secondary battery module according to a first embodiment of the present invention
- Figure 2 is a schematic overall perspective view of a cylindrical secondary battery module according to a first embodiment of the present invention
- 3 is a plan view of a cylindrical secondary battery module according to a first embodiment of the present invention
- Figure 4 shows a state in which the cell cap and the disconnection unit is separated from the cylindrical secondary battery cell in the cylindrical secondary battery module according to the first embodiment of the present invention.
- the cylindrical secondary battery module 10 according to the first exemplary embodiment of the present invention includes a cylindrical secondary battery cell 100, a bus bar 200, and an electrical power unit 300. do.
- the cylindrical secondary battery cell 100 includes an electrode assembly 110, for example, a jelly-roll type electrode assembly 110, and a cylindrical battery case in which an electrolyte is accommodated together with the electrode assembly 110. And a cell cap 130 coupled to, for example, the positive terminal 121 of the upper part of the battery case 120.
- an electrode assembly 110 for example, a jelly-roll type electrode assembly 110
- a cylindrical battery case in which an electrolyte is accommodated together with the electrode assembly 110.
- a cell cap 130 coupled to, for example, the positive terminal 121 of the upper part of the battery case 120.
- the electrode assembly 110 may have a structure in which a separator 112 is interposed between the positive electrode 111 and the negative electrode 113 to be wound in a jelly-roll shape, and a positive electrode lead may be formed on the positive electrode 111. Is attached to the positive electrode terminal 121 of the upper part of the battery case 120, for example, and a negative electrode lead (not shown) is attached to the negative electrode 113 to the negative electrode terminal of the lower part of the battery case 120. Is connected to.
- a cylindrical center pin (not shown) may be inserted into the center of the electrode assembly 110. The center pin (not shown) may function as a passage for fixing and supporting the electrode assembly 110 and releasing gas generated by an internal reaction during charging and discharging and operation.
- the battery case 120 for example, the lower part of the cell cap 130, a safety vent (not shown) for rupturing due to a rise in pressure inside the battery case 120, and for discharging gas, and the cell cap 130 and safety Safety element (not shown) in the form of a PTC element (Positive Temperature Coefficient element) interposed between the vent (not shown), the upper one side is in contact with the safety vent (not shown) and the lower one side of the anode lead of the electrode assembly 110
- a current blocking member (not shown) connected to (not shown) may be provided.
- the positive electrode 111 of the electrode assembly 110 is connected to a positive electrode lead (not shown), a current blocking member (not shown), a safety vent (not shown), and a safety device (not shown) under normal operating conditions. It may be connected to the cell cap 130 and energized via.
- the internal pressure may increase, in this case a safety vent (not shown).
- the cell cap 130 coupled to the positive electrode terminal 121 may be separated by the pressure of the gas.
- the cell cap 130 is provided to be separated by the pressure of the gas generated inside the battery case 120.
- the plurality of cylindrical secondary battery cells 100 may be used in direct connection or in parallel by a variety of ways.
- the bus bar 200 may be connected to each of the positive electrode terminal 121 and the negative electrode terminal of the cylindrical secondary battery cell 100 to be connected directly or in parallel.
- the positive electrode terminal 121 and the negative electrode terminal of the plurality of cylindrical secondary battery cells 100 are connected in parallel through the bus bar 200 will be described.
- the scope of the present embodiment Is not limited thereto.
- the bus bar 200 interconnects the plurality of cylindrical secondary battery cells 100 and a hollow 210 is formed.
- the disconnection unit 300 may be disposed in the hollow 210 of the bus bar 200 and may be connected to the bus bar 200. Detailed description thereof will be described later.
- the bus bar 200 may be provided in plural in a plate shape as shown in FIG. 2, or the plurality of cylindrical secondary battery cells 100 may be connected by one plate.
- the bus bar 200 is made of a conductive material to electrically connect the plurality of cylindrical secondary battery cells 100.
- the bus bar 200 may be made of, for example, a material made of aluminum, copper, or nickel coated copper.
- an insulating member 400 may be interposed between the bus bar 200 and the cylindrical secondary battery cell 100.
- the cell cap 130 coupled to the positive electrode terminal 121 may be separated.
- the cell cap 130 coupled to the cell cap 130 may be separated.
- the whole 300 is separated from the bus bar 200 and disconnected (see FIG. 4).
- the cylindrical secondary battery cell 100 in which an abnormal phenomenon such as overpressure or overheating occurs is normally operated. It may still be electrically connected to the secondary battery cells 100.
- the insulating member 400 is electrically connected to the cylindrical secondary battery cells 100 that are normally operating with the cylindrical secondary battery cells 100 having abnormalities when the disconnection unit 300 is separated from the bus bar 200. It may be interposed between the bus bar 200 and the cylindrical secondary battery cell 100 to block the connection.
- the insulating member 400 may be made of various electrical insulating materials.
- the insulating member 400 is not necessarily limited thereto, and only the disconnection part 300 is coupled to the cell cap 130 through a structural shape change and is electrically connected thereto.
- the other part of the bus bar 200 may be provided so as not to be electrically connected away from the cylindrical secondary battery cell 100.
- the disconnection unit 300 may be disposed in the hollow 210 of the bus bar 200.
- the disconnection unit 300 electrically interconnects the bus bar 200 and the cylindrical secondary battery cell 100. That is, the disconnection unit 300 is disposed in the hollow 210 of the bus bar 200, is coupled to the cylindrical secondary battery cell 100, and electrically connected to the bus bar 200. Therefore, when the disconnection unit 300 is separated from the bus bar 200 when an abnormal phenomenon such as overpressure or overheat occurs in the cylindrical secondary battery cell 100, the cylindrical secondary battery cell 100 operates normally. Electrical connection between the other cylindrical secondary battery cells 100 may be broken.
- the cylindrical secondary battery cell 100 in which an abnormal phenomenon occurs may be formed of another normal cylindrical secondary battery cell ( 100 and the electrical connection is completely disconnected, other secondary battery cells in normal operation can continue to operate stably.
- the disconnection unit 300 may be coupled to the cell cap 130 of the cylindrical secondary battery cell 100. As described above, when gas is generated in the cylindrical secondary battery cell 100 to increase the internal pressure, the gas inside the battery case 120 moves to the cell cap 130 side, thereby separating the cell cap 130 by the pressure of the gas. In this case, the disconnection unit 300 coupled to the cell cap 130 may also be separated from the bus bar 200 by the pressure of the gas (see FIG. 4). To this end, the portion where the power unit 300 and the bus bar 200 are connected, for example, the second member 320 of the power unit 300 to be described later, has a width that can be cut at a predetermined pressure.
- the second member 320 may have a cylindrical shape.
- the power unit 300 may have a width enough to be separated by the gas pressure generated in the secondary battery cell 100.
- the pressure of the gas generated in the cylindrical secondary battery cell 100 may also vary depending on various conditions such as the overall size of the cylindrical secondary battery cell 100 and the degree of electrolyte contained in the battery case 120. May be experimentally preset, and the range of the width of the second member 320 may also be preset by experiment to correspond to each pressure range.
- the second member 320 of the disconnection part 300 when the cylindrical secondary battery cell 100 is overheated beyond the preset temperature range, the second member 320 of the disconnection part 300, for example, the disconnection part 300 may be replaced with the bus bar 200. It has a predefined range of widths so that the connection can be broken. That is, when the width of the second member 320 is narrow, the unit area decreases to increase the resistance per unit area, and when overheating occurs, relatively higher heat is generated by the higher resistance and the width of the second member 320 is narrower. The part may be broken by high temperature. To this end, the second member 320 may be made of copper or aluminum so as to break when overheating. And, the width of the second member 320 can be set experimentally as in the pressure range. That is, the range of the width of the second member 320 may also be preset by experiment so as to correspond to the temperature range set by overheating.
- the power unit 300 may include a first member 310 and a second member 320.
- the first member 310 is disposed in the hollow 210 of the bus bar 200 and coupled to the cell cap 130.
- the first member 310 may be formed in a shape corresponding to the shape of the cell cap 130. For example, if the cross section of the cell cap 130 is circular, the first member 310 may be formed in a circular cross-sectional view of the first member 310.
- the shape of the cell cap 130 and the shape of the first member 310 do not necessarily need to be the same, and the first member 310 may have various shapes.
- the first member 310 may be coupled to the cell cap 130 by various methods, for example, welding, in which case the first member 310 may be electrically coupled to the cell cap 130.
- the first member 310 may be generally disposed at the center of the bus bar 200, but is not limited thereto.
- the second member 320 is electrically connected to the first member 310 and the bus bar 200 in various ways or shapes.
- the second member 320 may include a first connection point 321, a second connection point 322, and a round part 323.
- the first connection point 321 is connected to the first member 310. That is, the first connection point 321 may be coupled to any wall surface of the first member 310.
- the second connection point 322 is connected to the bus bar 200. That is, the second connection point 322 may be coupled to any wall of the bus bar 200.
- the round part 323 may be connected to the second connection point 322 to be rounded from the first connection point 321.
- the round part 323 may be configured to rotate roundly along an outer edge of the first member 310, such as a coil spring, from the first connection point 321 to the second connection point 322.
- the second member 320 may have a structure formed by winding the coil spring in a round shape, whereby the second member 320 may be maintained from external vibration or impact. That is, the second member 320 is configured to be cut off from the bus bar 200 when an abnormal phenomenon such as overpressure or overheating occurs in the cylindrical secondary battery cell 100, but when the cylindrical secondary battery cell 100 operates normally, the bus bar ( 200) to maintain the electrical connection. However, when external vibration or shock is transmitted to the second member 320, the second member 320 having a narrow width may be cut off. To this end, the second member 320 is formed in a shape that rotates so as to have an elastic property such as a coil spring, so that the second member 320 can be maintained without being disconnected from external vibration or impact.
- the cylindrical secondary battery module 10 is a plurality of cylindrical secondary battery cells 100 are electrically connected through the bus bar 200. At this time, an abnormal phenomenon such as overpressure or overheating may occur in at least one of the plurality of cylindrical secondary battery cells 100, and in this case, since it may adversely affect other cylindrical secondary battery cells 100 that operate normally, the normal operation may occur. It is necessary to disconnect the electrical connection between the cylindrical secondary battery cells 100 and the cylindrical secondary battery cells 100 in which an abnormal phenomenon occurs.
- the disconnection part 300 may include a first member 310 and a second member 320, and the first member 310 may be disposed in the hollow 210 formed in the bus bar 200 so as to provide a battery case (
- the second member 320 is coupled to the cell cap 130 coupled to the positive terminal 121 of the 120, and the second member 320 rotates in a circular shape along the circumference of the first member 310 and the bus bar. Electrically connect the 200.
- an insulating member 400 is interposed between the bus bar 200 and the cylindrical secondary battery cell 100.
- the second member 320 has a width in a predetermined range so as to break when overpressure or overheating, and may be made of copper or aluminum.
- the second member 320 When an abnormal phenomenon such as overpressure or overheat occurs in at least one of the cylindrical secondary battery cells 100, the second member 320 is disconnected from the bus bar 200 due to gas pressure or high temperature. Since the insulating member 400 is interposed between the bus bar 200 and the cylindrical secondary battery cell 100, the cylindrical secondary battery cell 100 in which an abnormal phenomenon occurs and the cylindrical secondary battery cells 100 in normal operation. The electrical connection of the is cut off, thus the battery stability of the cylindrical secondary battery module 10 as a whole has the effect that can be maintained.
- FIG. 5 is a plan view of a cylindrical secondary battery module according to a second embodiment of the present invention
- Figure 6 is a plan view of a cylindrical secondary battery module according to a third embodiment of the present invention.
- the shape of the second member 320 is different from that of the first embodiment.
- the second embodiment of FIG. 5 includes a second member 320 rounded in that the first member 310 and the bus bar 200 are connected by one linear second member 320.
- the first embodiment of FIG. 6 differs from the first embodiment, and the second member 320 of the second embodiment includes two linear second members 320 and faces the first member 310 and the bus bar at a position opposite to each other. 200 is different from the first and second embodiments in that it is connected.
- the power cut part 300 includes a second member 320 roundly formed so as to correspond to external vibrations or shocks, but the installation place of the cylindrical secondary battery module 10 is provided. In some cases, the degree of vibration or impact is not strong.
- the disconnection part 300 including the linear second member 320 may be provided as in the second to third embodiments.
- the linear second member 320 of the second and third embodiments is advantageous in terms of cost because it is easier to process and can be manufactured with less material than the second member 320 of the first embodiment in which the round is formed.
- the number of the linear second members 320 included in the disconnection part 300 is not limited to the second embodiment or the third embodiment, and although not shown in the drawings, the linear second members ( The number and arrangement of 320 may vary.
- the present invention relates to a cylindrical secondary battery module, in particular, it can be used in the industry related to secondary 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)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (8)
- 전극 조립체 및 전해액이 수용되는 전지 케이스와 상기 전지 케이스의 양극 단자에 결합된 셀캡을 구비하는 원통형 이차전지 셀;복수의 원통형 이차전지 셀들을 상호 연결하며 중공이 형성된 버스 바; 및상기 버스 바의 상기 중공에 배치되어 상기 원통형 이차전지 셀에 결합되고 상기 버스 바에 전기적으로 연결되며, 상기 원통형 이차전지 셀에 이상현상 발생시 상기 버스 바로부터 분리되어 상기 복수의 원통형 이차전지 셀들간의 전기적 연결이 끊어지도록 구성되는 단전부를 포함하는 원통형 이차전지 모듈.
- 제1항에 있어서,상기 단전부는 상기 원통형 이차전지 셀의 상기 셀캡에 결합된 것을 특징으로 하는 원통형 이차전지 모듈.
- 제1항에 있어서,상기 버스 바와 상기 원통형 이차전지 셀 사이에 절연부재가 개재된 것을 특징으로 하는 원통형 이차전지 모듈.
- 제2항에 있어서,상기 단전부는,상기 버스 바의 중공에 배치되어 상기 셀캡에 결합되는 제1 부재; 및상기 제1 부재와 상기 버스 바에 각각 전기적으로 연결되는 제2 부재를 포함하는 원통형 이차전지 모듈.
- 제4항에 있어서,상기 제2 부재는,상기 제1 부재에 연결되는 제1 연결지점;상기 버스 바에 연결되는 제2 연결지점; 및상기 제1 연결지점으로부터 라운드지도록 상기 제2 연결지점에 연결되는 라운드부를 포함하는 것을 특징으로 하는 원통형 이차전지 모듈.
- 제4항에 있어서,상기 제2 부재는 소정 범위의 압력에 의해 상기 버스 바와의 연결이 끊어질 수 있도록 미리 설정된 범위의 폭을 가지는 것을 특징으로 하는 원통형 이차전지 모듈.
- 제4항에 있어서,상기 제2 부재는 소정 범위의 온도에서 상기 버스 바와의 연결이 끊어질 수 있도록 미리 설정된 범위의 폭을 가지는 것을 특징으로 하는 원통형 이차전지 모듈.
- 제7항에 있어서,상기 제2 부재는 과열시 끊어질 수 있도록 구리 또는 알루미늄 재질로 마련되는 것을 특징으로 하는 원통형 이차전지 모듈.
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JP2018557045A JP6824288B2 (ja) | 2016-12-05 | 2017-07-31 | 円筒型二次電池モジュール |
EP17878447.6A EP3419083A4 (en) | 2016-12-05 | 2017-07-31 | CYLINDRICAL SECONDARY BATTERY MODULE |
US16/087,899 US20190109313A1 (en) | 2016-12-05 | 2017-07-31 | Cylindrical secondary battery module |
CN201780018283.4A CN108780863B (zh) | 2016-12-05 | 2017-07-31 | 圆柱形二次电池模块 |
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KR1020160164607A KR102085343B1 (ko) | 2016-12-05 | 2016-12-05 | 원통형 이차전지 모듈 |
KR10-2016-0164607 | 2016-12-05 |
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WO2018105847A1 true WO2018105847A1 (ko) | 2018-06-14 |
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PCT/KR2017/008253 WO2018105847A1 (ko) | 2016-12-05 | 2017-07-31 | 원통형 이차전지 모듈 |
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US (1) | US20190109313A1 (ko) |
EP (1) | EP3419083A4 (ko) |
JP (1) | JP6824288B2 (ko) |
KR (1) | KR102085343B1 (ko) |
CN (1) | CN108780863B (ko) |
WO (1) | WO2018105847A1 (ko) |
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KR102350459B1 (ko) | 2017-12-07 | 2022-01-11 | 주식회사 엘지에너지솔루션 | 원통형 이차전지 모듈 |
KR20200073042A (ko) * | 2018-12-13 | 2020-06-23 | 주식회사 엘지화학 | 전지 모듈 |
KR20210035520A (ko) * | 2019-09-24 | 2021-04-01 | 주식회사 엘지화학 | 버스바 플레이트를 포함하는 배터리 모듈, 그것을 포함하는 배터리 팩, 및 전자 디바이스 |
WO2021071113A1 (ko) * | 2019-10-11 | 2021-04-15 | 주식회사 엘지화학 | 버스바 플레이트를 포함하는 배터리 모듈, 그것을 포함하는 배터리 팩, 및 전자 디바이스 |
KR20210070078A (ko) * | 2019-12-04 | 2021-06-14 | 주식회사 엘지에너지솔루션 | 배터리 모듈 및 배터리 팩 |
KR20210103090A (ko) * | 2020-02-13 | 2021-08-23 | 주식회사 엘지에너지솔루션 | 레일형 소켓이 구비된 전지 모듈 및 이를 포함하는 전지 팩 |
KR20220018735A (ko) | 2020-08-07 | 2022-02-15 | 주식회사 엘지에너지솔루션 | 바이메탈을 이용한 전류차단장치를 가진 배터리 팩 및 그 작동 방법 |
JP3239502U (ja) * | 2020-08-31 | 2022-10-20 | 中山市小万能源科技有限公司 | 電池 |
EP4220802A4 (en) * | 2020-09-25 | 2024-02-28 | SANYO Electric Co., Ltd. | BATTERY MODULE |
CN114520400A (zh) * | 2020-11-20 | 2022-05-20 | 比亚迪股份有限公司 | 智能连接片、电池包及车辆 |
CN114300810A (zh) * | 2021-08-27 | 2022-04-08 | 嘉兴模度新能源有限公司 | 一种电池组、电池包及其制造方法 |
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- 2017-07-31 JP JP2018557045A patent/JP6824288B2/ja active Active
- 2017-07-31 EP EP17878447.6A patent/EP3419083A4/en active Pending
- 2017-07-31 CN CN201780018283.4A patent/CN108780863B/zh active Active
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Also Published As
Publication number | Publication date |
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EP3419083A4 (en) | 2019-06-05 |
EP3419083A1 (en) | 2018-12-26 |
US20190109313A1 (en) | 2019-04-11 |
CN108780863B (zh) | 2021-07-09 |
KR20180064221A (ko) | 2018-06-14 |
CN108780863A (zh) | 2018-11-09 |
JP6824288B2 (ja) | 2021-02-03 |
KR102085343B1 (ko) | 2020-03-05 |
JP2019515448A (ja) | 2019-06-06 |
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