WO2013022210A2 - 이차전지 팩 - Google Patents
이차전지 팩 Download PDFInfo
- Publication number
- WO2013022210A2 WO2013022210A2 PCT/KR2012/006125 KR2012006125W WO2013022210A2 WO 2013022210 A2 WO2013022210 A2 WO 2013022210A2 KR 2012006125 W KR2012006125 W KR 2012006125W WO 2013022210 A2 WO2013022210 A2 WO 2013022210A2
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- WIPO (PCT)
- Prior art keywords
- terminal
- battery cell
- battery pack
- negative
- positive
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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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
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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
- H01M50/10—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
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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
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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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
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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
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
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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
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/591—Covers
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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
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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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
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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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- 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
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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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
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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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/4911—Electric battery cell making including sealing
Definitions
- the present invention relates to a secondary battery pack.
- lithium secondary batteries with high energy density, high operating voltage, and excellent storage and life characteristics are used for various mobile devices as well as various electronic products. It is widely used as an energy source.
- the secondary battery there is a removable structure in which insertion and detachment is free and an embedded structure in which the inside of the device is embedded, depending on the type of device in which the secondary battery is used.
- the secondary battery used in the conventional mobile device is configured to be inserted and detached according to the user's needs, while the secondary battery used in devices such as some mobile phones, tablet PCs, smart pads, etc. It may also consist of.
- Lithium secondary batteries are widely used as these secondary batteries, and these secondary batteries are capable of effectively controlling abnormal states such as overcharge and overcurrent of secondary batteries and negative and positive terminals electrically connected to a device on which they are mounted.
- Safety devices and the like examples include a PTC (Positive Temperature Coefficient) device, a Protection Circuit Module (PCM), a fuse, a TCO, and the like.
- safety devices such as PCM are connected to a battery cell including a cathode and an anode terminal by a welding or soldering method through a conductive nickel plate.
- a nickel plate is welded or soldered to each electrode terminal of a battery cell, and a printed circuit board (PCB) is welded to one side of the double-sided tape, and a protective tape is attached to the other side to closely contact the battery cell.
- a battery pack is manufactured by connecting a PCM to a battery cell by welding an electrode tab and a nickel plate.
- the PCM must maintain electrical connection with the electrode terminal while maintaining electrical insulation with other parts of the battery cell. Therefore, the insulating tape is attached to each member including the PCM, and a portion of the battery cell case is bent to attach the insulating tape, or the barcode is printed.
- the assembly process of the battery pack is complicated and the manufacturing cost is increased.
- the battery pack may cause problems such as damage to the PCM, significantly reduced dimensional stability due to the use of an insulating tape having a low mechanical rigidity.
- the protection circuit board of the secondary battery cell is covered with an electrically insulating case to protect and insulate the protection circuit board from external shocks and the like, and to prevent the electrode terminal of the secondary battery cell from being exposed to the outside. Provide the pack.
- the present invention provides a secondary battery pack that can simplify the assembly process by reducing the number of parts required in configuring the battery pack, and can exhibit excellent structural stability.
- the present invention provides a secondary battery pack capable of providing a maximum capacity in the same standard by mounting a PCM consisting of a protective circuit board and a case housing the same on the outer peripheral surface of the battery cell.
- the present invention provides a protection circuit module that protects the safety device from external impact, has excellent dimensional stability, and prevents wrinkles formed on the outer surface of the battery pack.
- a secondary battery pack includes a battery cell in which a positive electrode terminal and a negative electrode terminal are formed on one surface including a sealing surplus portion, and a protection circuit electrically connected to the battery cell through a positive electrode terminal and a negative electrode terminal.
- Module PCM
- the PCM may include a substrate having a protection circuit formed thereon, a substrate having a positive terminal connecting portion connecting to the positive terminal and a negative terminal connecting portion connecting to the negative terminal, and receiving the substrate through an open one surface. It may include an electrically insulating case.
- the substrate connected to the positive terminal and the negative terminal of the battery cell through the positive terminal connecting portion and the negative terminal connecting portion is accommodated in the case so that the positive terminal and the negative terminal are exposed through an open surface of the case.
- the battery cell may be mounted on a sealing surplus portion of the battery cell.
- the negative terminal connection portion of the PCM may be connected to the negative terminal of the battery cell through a safety device, the safety device may be a first safety device or a second safety device.
- the negative terminal connection part may be a second safety device connection part.
- the first safety element may be a protection circuit.
- the second safety device may be a PTC or a fuse or TCO.
- the battery cell is a plate-shaped battery cell
- the negative electrode terminal and the positive electrode terminal may be a plate-shaped conductive member.
- a mounting groove for mounting a PCB and a safety device may be formed on one surface of the electrically insulating case.
- the external input / output terminal may be formed on a substrate on which the negative terminal connection part and the positive terminal connection part are formed.
- the external I / O terminal may be formed on the other surface of the substrate on which the negative terminal connection part and the positive terminal connection part are formed.
- the substrate may further include an external input / output terminal, and the external input / output terminal may be formed on a substrate on which the positive terminal connection part and the negative terminal connection part are formed.
- the insulating tape may be further attached to at least one of the outer surfaces of the case.
- the battery cell may have a structure in which an electrode assembly having a positive electrode, a negative electrode, and a separator structure interposed between the positive electrode and the negative electrode is sealed in a battery case of a laminate sheet including a metal layer and a resin layer.
- an external input / output terminal may be connected to one surface of the substrate, and an anode terminal connection part and a safety device connection part may be formed at positions corresponding to the anode terminal and the safety device, respectively.
- the nickel plate may be additionally mounted to the anode terminal connecting portion and the cathode terminal connecting portion of the substrate by ultrasonic welding.
- the secondary battery pack may further include a label surrounding the battery cell, and the label may have a structure surrounding the sealing outer peripheral surface of the side of the PCM and the battery cell.
- the label may include a first attachment surface surrounding one surface of both surfaces of the battery cell, second and third attachment surfaces extending from the first attachment surface to surround both sides of the battery cell, and the PCM.
- the sheet structure may include a fourth attachment surface extending from the first attachment surface.
- a protective circuit module includes a protective circuit board including a positive terminal connection part and a negative terminal connection part connected to a positive electrode terminal and a negative electrode terminal of a battery cell, and to receive the protective circuit board through an open surface. It may comprise a configured electrically insulating case.
- a protection circuit module in a state parallel to the battery cell, after being housed in an electrically insulating case, it may be placed in a sealing surplus of the battery cell.
- the negative terminal connection portion of the protection circuit module may be connected to the negative terminal of the battery cell through a safety device.
- a mounting groove for mounting the PCB and the safety device may be formed on one surface of the electrically insulating case.
- a method of manufacturing a secondary battery pack includes a battery cell by sealing an electrode assembly having a positive electrode, a negative electrode, and a separator structure interposed between the positive electrode and the negative electrode in a battery case, and forming the battery cell.
- FIG. 1 is a partial perspective view of a battery cell.
- FIG. 2 is a partial perspective view of a safety device coupled to a battery cell.
- FIG 3 is a partial perspective view of an external input / output terminal coupled to a PCB substrate.
- FIG. 4 is a partial perspective view of a PCB and a safety device coupled to the top of the battery cell.
- FIG. 5 is a perspective view of an electrically insulating case.
- FIG. 6 is a partial perspective view of the PCB and the safety device of FIG. 4 mounted on an electrically insulating case.
- FIG. 6 is a partial perspective view of the PCB and the safety device of FIG. 4 mounted on an electrically insulating case.
- FIG. 7 is a schematic diagram of a process of mounting the PCM of FIG. 6 on a thermal fusion surplus of a battery cell.
- 8 to 10 are schematic diagrams showing the process of the label is attached.
- FIG. 11 is a perspective view of a rechargeable battery pack according to still another embodiment of the present invention.
- a secondary battery pack includes a battery cell having four outer peripheral surfaces sealed and a safety device mounted on a sealed outer peripheral surface having an excess of the outer peripheral surfaces.
- Safety device may be composed of a first safety device and a second safety device, as the first safety device, may be a boro circuit, as the second safety device, PTC, FUSE or TCO and the like.
- the second safety device may be included in the form of a component in the PCM.
- a safety device includes a protection circuit module (PCM), which may include a protection circuit board and a case accommodating the protection circuit board.
- PCM protection circuit module
- the safety device includes a protection circuit board, that is, a PCB, but the safety device according to an embodiment of the present invention is not limited thereto. .
- FIGS. 1 to 11 a rechargeable battery pack according to an exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 11.
- FIG. 1 illustrates a partial perspective view of a battery cell
- FIG. 2 illustrates a partial perspective view of a safety device coupled to a battery cell
- FIG. 3 illustrates a partial perspective view of an external input / output terminal coupled to a PCB substrate
- 4 schematically shows a partial perspective view of the PCB and the safety device coupled to the top of the battery cell.
- the battery cell 10 is a plate-shaped battery cell in which the negative electrode terminal 12 and the positive electrode terminal 11 are formed at one end thereof, respectively.
- the battery cell 10 is formed as a pouch type in which an electrode assembly having a cathode / separation membrane / cathode structure is sealed in a battery case of a laminate sheet including a metal layer and a resin layer, but is not limited thereto. no.
- the battery cell 10 includes a sealing surplus portion 13 formed on one surface thereof, a negative electrode terminal 12 and an anode terminal 11 exposed and positioned toward the sealing surplus portion 13. It includes.
- face refers to any face in a tetrahedron with approximately four facets, and is understood to include a side, cross section, or end.
- the sealing surplus part 13 which has the extra space formed in one surface among the sealed outer peripheral surfaces formed when the electrode assembly is sealed by the battery case of a laminate sheet is called the sealing surplus part 13.
- the sealing surplus part 13 can be replaced with terms such as sealing surplus, sealing surplus, sealing terrace, sealing terrace, and the like.
- the sealing surplus portion 13 may be formed by extending in a direction perpendicular to the longitudinal direction of the surface of the sealing portion formed on any one end surface of the battery cell.
- a nickel plate 15 may be additionally mounted on one surface of the positive electrode terminal 11 of the battery cell 10 coupled to the positive electrode terminal connecting portion 101 by ultrasonic welding.
- the PCB 100 may be connected to an external input / output terminal 110 including a connection portion 112 in the form of a wire in which the connector 111 is mounted at an end thereof, and the anode terminal 11 and the safety device 120.
- the positive electrode terminal connecting portion 101 and the safety device connecting portion 102 of the nickel plate may be formed at positions corresponding to the s).
- the external input-output terminal 110 may include a connection portion in the form of a wire, and may have various forms such as a plate.
- the PCB may include a positive terminal connection portion and a negative terminal connection portion.
- connection parts 101 and 102 are bent with the safety device connection part 102 connected to the PCB 100.
- An example of the safety device 120 is a positive temperature coefficient (PTC) device or a fuse.
- FIG. 5 illustrates a perspective view of an electrically insulating case
- FIG. 6 illustrates a partial perspective view of the PCB and the safety device of FIG. 4 mounted on the case
- FIG. 7 illustrates the PCM of FIG. The schematic diagram of the state mounted in the figure is shown.
- the secondary battery pack may include a case 210 to be accommodated therein while surrounding the PCB 100 and the safety device 120.
- the electrically insulating case 210 is open at one surface thereof, and the PCB 100 and the safety device 120 may be mounted through the open surface.
- the mounting groove 211 may be formed.
- the secondary battery pack includes a battery cell 10 including a PCM 200 in which a PCB 100 and a safety device 120 are housed in a case 210. ) Can be mounted on the sealing surplus 13.
- case 210 may have a box shape having a length corresponding to a length of one side of the battery cell in which the sealing surplus is formed, but longer or shorter than the length of the sealing surplus. Of course it can be formed.
- the secondary battery pack according to an embodiment of the present invention, the PCM 200, the PCB 100 and the safety device 120 mounted on the case 210, for example
- the electrode terminals 11 and 12 can be mounted on the sealing surplus portion 13 of the battery cell 10.
- the secondary battery pack according to the embodiment of the present invention includes a PCM 200 having a structure for accommodating and mounting a protective circuit board electrically connected to the positive terminal and the negative terminal of the battery cell in a case formed on one surface of the battery cell. Since it mounts on a sealing surplus part, compared with the conventional secondary battery pack, not only can it protect PCM effectively but also the number of parts is remarkably reduced and manufacturing processability can be improved significantly.
- the secondary battery pack according to the present invention since the protective circuit board is accommodated and mounted in an electrically insulating case, it is possible to protect and insulate the PCM including the protective circuit board, without using a separate member to insulate the electrode terminal The electrode terminal can be easily prevented from being exposed to the outside.
- the secondary battery pack according to the present invention has a structure in which a protective circuit board is embedded in a case, the secondary battery pack is easier to work with compared to a battery pack that insulates a PCM using a conventional tape, and the defective rate is relatively reduced. There is an advantage that can realize a clean appearance without wrinkles on the outside.
- the protective circuit board is mounted on a sealing excess formed on one surface of the battery cell, the sealing excess can be shorter than the conventional battery cell structure, and the capacity per unit volume of the battery pack can be increased. Can be.
- the PCM assembly is installed on the battery cell by combining the connection member, the PCM, and attaching the insulating tape at each step. Therefore, since the PCM assembly is mounted on the battery cell using a plurality of components, a number of processes are required, and problems such as low mechanical stability as well as mechanical rigidity are caused.
- the protective circuit module according to the present invention has a structure in which a protective circuit board is mounted on a case, structural stability of the battery pack can be improved, a manufacturing process of the battery pack can be greatly simplified, and excellent insulation is ensured. And, the capacity of the battery cell can be maximized in the battery pack of the same standard as the prior art.
- the label 400 extends from the first attaching surface 410 to surround both sides of the first attaching surface 410 and one side of the battery cell 10, the both sides of the battery cell 10.
- the second and third attachment surfaces 420 and 430, and a fourth attachment surface 440 extending from the first attachment surface 410 to surround the PCM 300. .
- one side of both surfaces of the battery cell 10 is positioned on the first attachment surface 410, and the second and third attachment surfaces 420 and 430 are bent and attached to cover both sides of the battery cell 10.
- the fourth attachment surface 440 may be bent to surround the PCM portion to attach the label 400 to the battery cell 10.
- the label 400 displaying information of the product more stably secures the electrical connection state between the electrode terminal of the battery cell and the PCB while maintaining an insulation state at both sides as well as the outer surface of the battery cell 10.
- FIG. 11 illustrates a perspective view of a rechargeable battery pack in which an external input / output terminal is mounted on a PCB according to another embodiment of the present invention.
- an external connection terminal 310 is formed on one surface of a PCB (not shown) and is exposed to the outside through the PCM case 220. It consists of a structure.
- the protection circuit board is accommodated and mounted in an electrically insulating case, the protection circuit board can be protected and insulated, and the electrode terminal is insulated using a separate member. Without this, the electrode terminals can be easily prevented from being exposed to the outside.
- the secondary battery pack according to the present invention has a structure in which a PCM having a structure in which a protective circuit board or the like is accommodated in one case is mounted on a sealing surplus of a battery cell, the secondary battery pack can effectively protect the PCM, and Fairness can be greatly improved.
- the secondary battery pack according to the present invention has a structure in which a protective circuit board is mounted in a case, it is easy to work in the construction of the secondary battery pack, the defect rate is relatively reduced, and a clean appearance without wrinkles on the outer surface of the secondary battery pack. There are advantages that can be implemented.
- the protection circuit board is mounted on the outer circumferential surface of the battery cell, for example, one sealing part, the sealing part can be shortened in some cases, and the capacity per unit volume of the secondary battery pack is increased. You can.
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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)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (22)
- 밀봉 잉여부를 포함하는 일면 상에 양극단자 및 음극단자가 형성되어 있는 전지셀; 및상기 양극단자 및 음극단자를 통해 상기 전지셀과 전기적으로 접속되는 보호회로 모듈(PCM)를 포함하며,상기 PCM은,상기 양극단자와 접속하는 양극단자 접속부와 상기 음극단자와 접속하는 음극단자 접속부가 위치하는 기판과,개방된 일면을 통해 상기 기판을 수납하도록 구성된 전기절연성 케이스를 포함하며,상기 양극단자 접속부 및 음극단자 접속부를 통해 상기 전지셀의 양극단자 및 음극단자와 접속한 상기 기판은 상기 양극단자 및 음극단자가 상기 케이스의 개방된 일면을 통해 노출되도록 상기 케이스 내로 수납되어, 상기 전지셀의 밀봉 잉여부에 탑재되는 것인 이차전지 팩.
- 제 1 항에 있어서, 상기 PCM의 음극단자 접속부는 안전소자를 통해 상기 전지셀의 음극단자와 접속하는 것인 이차전지 팩.
- 제 2 항에 있어서, 상기 안전소자는 제 1 안전소자 또는 제 2 안전소자인 이차전지 팩.
- 제 3 항에 있어서, 상기 제 1 안전소자는 보호회로인 이차전지 팩.
- 제 3 항에 있어서, 상기 제 2 안전소자는 PTC 또는 퓨즈(fuse) 또는 TCO인 이차전지 팩.
- 제 1 항에 있어서, 상기 전지셀은 판상형 전지셀이고, 상기 음극단자 및 양극단자는 판상형의 도전성 부재인 이차전지 팩.
- 제 1 항에 있어서, 상기 전기절연성 케이스의 상기 일면에는 PCB와 안전소자의 장착을 위한 장착홈이 형성되어 있는 것인 이차전지 팩.
- 제 1 항에 있어서, 상기 기판은 외부입출력단자를 더 포함하는 것인 이차전지 팩.
- 제 8 항에 있어서, 상기 외부입출력단자는 상기 음극단자 접속부 및 양극단자 접속부가 형성된 기판 상에 형성되는 것인 이차전지 팩.
- 제 8 항에 있어서, 상기 외부입출력단자는 상기 음극단자 접속부 및 양극단자 접속부가 형성된 기판의 타면에 형성되는 것인 이차전지 팩.
- 제 8 항에 있어서, 상기 외부입출력단자는 연결부를 통해서 상기 양극단자 접속부 및 음극단자 접속부가 형성된 기판에 형성되는 것인 이차전지 팩.
- 제 1 항에 있어서, 상기 케이스의 외면 중 적어도 일면에 절연 테이프를 추가로 더 붙이는 것인 가 형성되어 있는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지셀은 양극, 음극, 및 상기 양극과 음극 사이에 개재된 분리막 구조의 전극조립체가 금속층 및 수지층을 포함하는 라미네이트 시트의 전지케이스에 밀봉되어 있는 구조인 이차전지 팩.
- 제 8 항에 있어서, 상기 기판의 일면에는 외부입출력단자가 접속되어 있고, 타면에는 양극단자 및 안전소자에 대응하는 위치에 각각 양극단자 접속부 및 안전소자 접속부가 형성되어 있는 것인 이차전지 팩.
- 제 14 항에 있어서, 상기 기판의 양극단자 접속부 및 음극단자 접속부에는 초음파 용접에 의해 니켈 플레이트가 추가로 장착되어 있는 이차전지 팩.
- 제 1 항에 있어서, 전지셀을 감싸는 라벨을 더 포함하는 것인 이차전지 팩.
- 제 16 항에 있어서, 상기 라벨은 PCM 및 전지셀의 측면의 밀봉 외주면을 감싸는 구조로 이루어진 것인 이차전지 팩.
- 제 17 항에 있어서, 상기 라벨은, 전지셀의 양면 중 일면을 감싸는 제 1 부착면, 전지셀의 양측면을 감쌀 수 있도록 상기 제 1 부착면으로부터 연장된 제 2 및 제 3 부착면, 및 PCM를 감쌀 수 있도록 상기 제 1 부착면으로부터 연장된 제 4 부착면을 포함하는 시트 구조로 이루어진 것인 이차전지 팩.
- 전지셀의 양극단자 및 음극단자와 접속하는 양극단자 접속부 및 음극단자 접속부를 포함하는 보호회로 기판과;개방된 일면을 통해 상기 보호회기판을 수납하도록 구성된 전기절연성 케이스를 포함하며,상기 양극단자 접속부 및 음극단자 접속부를 통해 상기 전지셀의 양극단자 및 음극단자와 접속한 상기 기판은 상기 양극단자 및 음극단자가 상기 케이스의 개방된 일면을 통해 노출되도록 상기 케이스 내로 수납되어, 상기 전지셀의 밀봉 잉여부에 탑재되는 것인 보호회로 모듈.
- 제 19 항에 있어서, 상기 보호회로 모듈의 음극단자 접속부는 안전소자를 통해 상기 전지셀의 음극단자와 접속하는 것인 보호회로 모듈.
- 제 19 항에 있어서, 상기 전기절연성 케이스의 상기 일면에는 PCB와 안전소자의 장착을 위한 장착홈이 형성되어 있는 것인 보호회로 모듈.
- 양극, 음극, 및 상기 양극과 음극 사이에 개재된 분리막 구조의 전극조립체를 전지케이스에 밀봉하며 전지셀을 형성하며, 상기 전지셀의 상기 밀봉 외주면 중 일면의 밀봉면은 잉여부를 포함하는 것인 전지셀 형성 과정과;상기 양극단자 접속부 및 음극단자 접속부를 통해 상기 전지셀의 양극단자 및 음극단자와 접속한 상기 기판은 상기 양극단자 및 음극단자가 상기 케이스의 개방된 일면을 통해 노출되도록 상기 케이스 내로 수납하는 과정과;상기 케이스를 전지셀의 밀봉 잉여부에 탑재하는 과정을포함하는 이차전지 팩을 제조하는 방법.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280038445.8A CN103718343A (zh) | 2011-08-09 | 2012-08-01 | 二次电池组 |
| JP2014524917A JP6313206B2 (ja) | 2011-08-09 | 2012-08-01 | 二次電池パック |
| BR112014002635A BR112014002635B8 (pt) | 2011-08-09 | 2012-08-01 | Conjunto de bateria secundária e método de fabricar um conjunto de bateria secundária |
| EP12822640.4A EP2728649B1 (en) | 2011-08-09 | 2012-08-01 | Secondary battery pack |
| US14/164,763 US9331327B2 (en) | 2011-08-09 | 2014-01-27 | Secondary battery pack |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0078982 | 2011-08-09 | ||
| KR20110078982 | 2011-08-09 | ||
| KR10-2012-0014786 | 2012-02-14 | ||
| KR1020120014786A KR20130018476A (ko) | 2011-08-09 | 2012-02-14 | 콤팩트한 구조의 이차전지 팩 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/164,763 Continuation US9331327B2 (en) | 2011-08-09 | 2014-01-27 | Secondary battery pack |
Publications (2)
| Publication Number | Publication Date |
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| WO2013022210A2 true WO2013022210A2 (ko) | 2013-02-14 |
| WO2013022210A3 WO2013022210A3 (ko) | 2013-04-04 |
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| PCT/KR2012/006125 Ceased WO2013022210A2 (ko) | 2011-08-09 | 2012-08-01 | 이차전지 팩 |
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| Country | Link |
|---|---|
| US (1) | US9331327B2 (ko) |
| EP (1) | EP2728649B1 (ko) |
| JP (1) | JP6313206B2 (ko) |
| KR (2) | KR20130018476A (ko) |
| CN (2) | CN103718343A (ko) |
| BR (1) | BR112014002635B8 (ko) |
| TW (1) | TWI482337B (ko) |
| WO (1) | WO2013022210A2 (ko) |
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| JP2016503229A (ja) * | 2013-05-23 | 2016-02-01 | エルジー・ケム・リミテッド | 非突出構造のコネクターを含んでいる二次電池パック |
| US9660302B2 (en) | 2013-05-23 | 2017-05-23 | Lg Chem, Ltd. | Secondary battery pack having non-protruded connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6313206B2 (ja) | 2018-04-18 |
| BR112014002635B8 (pt) | 2023-03-21 |
| EP2728649A2 (en) | 2014-05-07 |
| CN203277581U (zh) | 2013-11-06 |
| CN103718343A (zh) | 2014-04-09 |
| US20140141289A1 (en) | 2014-05-22 |
| US9331327B2 (en) | 2016-05-03 |
| JP2014526124A (ja) | 2014-10-02 |
| KR20130018476A (ko) | 2013-02-25 |
| KR20130018577A (ko) | 2013-02-25 |
| BR112014002635A2 (pt) | 2017-03-07 |
| WO2013022210A3 (ko) | 2013-04-04 |
| BR112014002635B1 (pt) | 2021-07-20 |
| TWI482337B (zh) | 2015-04-21 |
| TW201322531A (zh) | 2013-06-01 |
| KR101237756B1 (ko) | 2013-02-27 |
| EP2728649A4 (en) | 2015-04-15 |
| EP2728649B1 (en) | 2017-11-22 |
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