WO2013119003A1 - 신규한 구조의 이차전지 팩 - Google Patents
신규한 구조의 이차전지 팩 Download PDFInfo
- Publication number
- WO2013119003A1 WO2013119003A1 PCT/KR2013/000866 KR2013000866W WO2013119003A1 WO 2013119003 A1 WO2013119003 A1 WO 2013119003A1 KR 2013000866 W KR2013000866 W KR 2013000866W WO 2013119003 A1 WO2013119003 A1 WO 2013119003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery cell
- pcm
- secondary battery
- battery pack
- coupled
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000005476 soldering Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 5
- AJKLKINFZLWHQE-UHFFFAOYSA-N 2,2',3,3',5,5'-hexachlorobiphenyl Chemical compound ClC1=CC(Cl)=C(Cl)C(C=2C(=C(Cl)C=C(Cl)C=2)Cl)=C1 AJKLKINFZLWHQE-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002654 heat shrinkable material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—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
-
- 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
-
- 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
-
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- 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
Definitions
- the present invention relates to a secondary battery pack having a novel structure, and more particularly, a battery cell in which the electrode assembly is sealed inside the battery case together with the electrolyte and the first and second electrode terminals are formed on the top surface thereof;
- An electrically insulating mounting member having an opening formed to expose the second electrode terminal of the battery cell and mounted on an upper surface of the battery cell;
- a protective circuit is formed and includes a substrate (PCB) mounted on the mounting member, and a connection member (A) and a connection member (B) coupled to the lower surface of the PCB, respectively, and the connection member (A)
- a protection device is connected to the first electrode terminal via a safety device, the connection member B is coupled to the second electrode terminal, and a through hole through which the connection member B can be exposed is drilled on the PCB.
- a circuit module (PCM); And an insulating cap coupled to an upper end of the battery cell while surrounding the insulating mounting member while the connection members and the protection circuit board are mounted. It includes, and relates to a secondary battery pack having a total height of the PCM and the insulating cap is less than 3.0 mm.
- 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 may be used as a removable structure that can be inserted and detached freely depending on the type of external device in which the secondary battery is used, or may be used as a built-in structure that is embedded in an external device.
- devices such as mobile phones and laptops can be inserted and removed according to user needs, while devices such as MP3 (MPEG Audio Layer-3) use internal battery packs due to their structure and capacity. This may be required.
- MP3 MPEG Audio Layer-3)
- a lithium secondary battery has a PTC (Positive Temperature Coefficient) element and a protection circuit module (PCM) connected to the battery cell as a safety device that can effectively control abnormal conditions such as overcharge and overcurrent. It is mounted.
- PTC Physical Temperature Coefficient
- PCM protection circuit module
- PCM and the like are electrically connected to the battery cell by welding or soldering via a conductive nickel plate. That is, the nickel plate is connected to the electrode tab of the PCM by welding or soldering, respectively, and then the nickel plate is connected to the battery cell by welding or soldering the nickel plate to the electrode terminals of the battery cell, respectively, to manufacture a battery pack.
- the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
- an object of the present invention is to provide a secondary battery pack that can reduce the number of parts required for the battery pack, simplify the assembly process to increase the capacity of the battery compared to the same standard.
- Still another object of the present invention is to provide a PCM assembly and an insulating mounting member having a novel structure in which connection members are combined in a specific structure so that the secondary battery pack can be manufactured as described above.
- An electrically insulating mounting member having an opening formed to expose the second electrode terminal of the battery cell and mounted on an upper surface of the battery cell;
- a protective circuit is formed and includes a substrate (PCB) mounted on the mounting member, and a connection member (A) and a connection member (B) coupled to the lower surface of the PCB, respectively, and the connection member (A)
- a protection device is connected to the first electrode terminal via a safety device, the connection member B is coupled to the second electrode terminal, and a through hole through which the connection member B can be exposed is drilled on the PCB.
- An insulating cap coupled to an upper end of the battery cell while surrounding the insulating mounting member in a state where the connection members and the protection circuit board are mounted;
- the total height of the PCM and the insulating cap is configured to be 3.0 mm or less.
- connection member B exposed by the through hole on the PCB is electrically connected to the second electrode terminal of the battery cell from the upper side. Since the connection member (A) is electrically connected to the first electrode terminal is achieved, the electrical connection process can be performed by a simple connection as a whole, and the ease of operation can be improved to greatly improve the manufacturing processability.
- the connecting member A extending from one end of the PCM is in a non-bending state, and the connecting member B does not need a separate mounting space, the connecting members are bent for electrical connection of safety devices in the prior art. It is possible to minimize the dead space caused, and to minimize the total height of the PCM and the insulating cap to manufacture a secondary battery pack of high energy density compared to the same standard.
- the secondary battery pack according to the present invention can be made of a structure in which the total height of the PCM and the insulating cap is 3.0 mm or less.
- the minimum value of the sum total height is not particularly limited and may be, for example, 1 mm.
- the battery case may be a metal can of a rectangular shape, and preferably, an aluminum can or a stainless steel can.
- the second electrode terminal may be a negative terminal and the first electrode terminal may be a positive terminal.
- the rectangular battery cell has a structure in which an electrode terminal and a battery case protruding from the upper surface thereof form a negative terminal and a positive electrode terminal, respectively, with an insulating member such as a gasket interposed therebetween to insulate each other. have.
- the second electrode terminal may be a negative electrode terminal protruding from the top surface of the battery case
- the first electrode terminal may be a positive electrode terminal formed on the top surface of the battery case except for the negative electrode terminal.
- connection members and the PCM may be achieved in various ways, and preferably, may be coupled to the bottom surface of the PCB by a surface mount technology (SMT) method.
- SMT surface mount technology
- This SMT method is preferable because it prevents the paste from remaining on the lower surface of the PCB when soldering or the lower surface of the PCB during welding, and can be mutually coupled more accurately and reliably than conventional welding or soldering methods.
- SMT is widely used to mount surface-mount components on an electromagnetic board such as a printed circuit board (PCB).
- the connecting member B made of a nickel plate may be coupled to the negative electrode terminal in an SMT manner, and the safety element may be coupled to the positive electrode terminal in an SMT manner.
- connection member (B) may be a structure that is coupled to the bottom of the through hole of the PCB. That is, since the connection member B and the second electrode terminal may be coupled to each other by welding using the through hole, the assembly process may be further simplified and the thickness of the PCM may be minimized.
- the safety device is a device that increases resistance when the current is broken when the overcurrent is energized or may be a PTC device.
- the PTC device serves to block a current at the top of the battery pack when the temperature rises rapidly due to internal short circuiting of the battery pack.
- the safety device is not limited to only the PTC device, and for example, bimetals, fuses, and the like can also be used.
- the PTC element preferably includes a PTC body, a PCM coupling portion coupled to an upper surface of the PTC body, and a battery cell coupling portion coupled to a lower surface of the PTC body, wherein the battery cell
- the coupling portion may be configured to protrude in a transverse direction from one end of the PCM assembly to be exposed from the upper side of the PCM assembly.
- the insulating mounting member has a smaller size in the horizontal direction than the top surface of the battery cell to secure the portion connecting the connection member (A) to the battery cell, the case top protrusion of the battery cell ('sealed electrolyte injection portion ') May be formed in a structure in which a second opening is further formed.
- the insulating mounting member is formed to have a smaller size in the horizontal direction than the top surface of the battery cell, the space for locating the connection member A between one end of the PCM assembly and one end of the battery cell top surface can be easily located. It can be secured.
- the mounting member has a storage sidewall protruding upward from an upper surface thereof, and a fastening protrusion is formed in the longitudinal direction from the storage sidewall. It may be a structure.
- the upper end portion of the side wall may be configured to be coupled while supporting the PCM assembly.
- the vertically protruding protrusion structure increases the coupling force between the PCM assembly and the insulating mounting member, thereby effectively preventing the connection member A from being separated from the PCM assembly by external force, and preferably the storage sidewall.
- the sum of the heights of the protrusions may be the same as the height of the PCB.
- one or more fastening projections protrude downward on the lower surface of the mounting member, the upper surface of the battery cell for fastening corresponding to the fastening projections An indentation may be formed.
- the coupling of the insulating mounting member to the top surface of the battery case may be separately coupled by, for example, a bonding method so as to secure an easy and more stable coupling state of the battery pack assembly process.
- the insulating cap coupled to the upper end of the battery cell may be a structure that is equipped with a separate insulating cap (lower cap) in the lower end, it may be a structure in which the outer film is attached to the outer surface of the case of the battery cell. This protects the battery cell from external shock and maintains electrical insulation.
- the exterior film may be attached to the structure surrounding the downward extension of the insulating cap.
- the secondary battery pack according to the present invention may be variously applied regardless of the type and appearance of the battery cell, and may be preferably applied to a battery pack including a rectangular lithium secondary battery as a battery cell.
- the present invention also provides a PCM assembly mounted on a battery cell, and is formed on a protection circuit module (PCM), connecting members (A, B) coupled to the bottom surface of the PCM in an SMT manner, and an upper surface of the PCM. And external connection input / output terminals, wherein the connection member (A) is connected to the first electrode terminal via a safety device, and the connection member (B) is coupled to the second electrode terminal, and the connection member (B) A through hole that may be exposed provides a PCM assembly assembly that is perforated on the PCB.
- PCM protection circuit module
- the PCM is mounted as a separate member and electrically connected to the upper end of the battery cell. Therefore, in order to mount such a PCM outside the battery cell, a difficult coupling process with the battery cell is performed, such as a plurality of welding or soldering operations, so a lot of defects occur and at the same time, problems such as requiring space for mounting are caused. do.
- the connecting members are coupled by the SMT method, and the connecting member A is coupled in a state in which it protrudes in a transverse direction from one end of the PCM assembly, the conventional welding or Compared to the soldering method, the defect rate of the connection part is greatly reduced and the assembly process can be saved.
- FIG. 1 is an exploded perspective view of an insulating cap on which an upper end portion and an insulating mounting member of a battery cell according to an embodiment of the present invention are mounted;
- FIG. 2 is a partial perspective view of the insulating cap in FIG. 1; FIG.
- FIG. 3 is a schematic view of an exterior film attached to an outer surface of the battery case of FIG. 2.
- FIG. 4 is a partial perspective view of the insulating mounting member mounted on the top of the battery cell
- FIG. 5 is a partial perspective view of the PCM mounted in FIG. 4; FIG.
- connection members are coupled to the bottom surface of the PCM assembly
- FIG. 7 is a schematic side view of FIG. 6.
- FIG. 1 is an exploded perspective view of an insulating cap mounted with an upper end portion and an insulating mounting member of a battery cell according to an embodiment of the present invention
- FIG. 2 is a partial perspective view showing an insulating cap mounted in FIG. 1.
- 3 is a schematic diagram in which an outer film is attached to an outer surface of the battery case of FIG. 2.
- the secondary battery pack 100 includes a battery cell 110, an electrically insulating mounting member 120 mounted on an upper surface of the battery cell 110, a protection circuit module (PCM) 130, and insulating mounting.
- the insulating cap 140 is mounted on the top of the battery cell 110 while wrapping the member 120, and the exterior film 160 is formed to surround the outer surface of the case of the battery cell 110.
- the battery cell 110 includes a cathode terminal 111 and a cathode terminal 111 in which an electrode assembly having a cathode / separation membrane / cathode structure is sealed inside a battery case made of an aluminum material together with an electrolyte solution, and protrudes from the center of the top surface. Except for consisting of a positive electrode terminal 112 is formed on the top surface of the battery cell 110 is formed.
- the opening 121 is drilled in the insulating mounting member 120 to expose the negative electrode terminal 111 of the battery cell 110.
- the fastening protrusion 124 protrudes downward on the lower surface of the mounting member 120, the battery cell 110
- the fastening indentation part 114 corresponding to the fastening protrusion 124 is formed in the upper surface of the ().
- the PCM 130 may include a connection member 132 and a connection member 136, each having a protection circuit formed thereon and coupled to a lower surface of the PCB 133 and the PCB 133 mounted on the mounting member 120, respectively.
- the connection member 136 is connected to the positive electrode terminal 112 via the PTC element 137, the connection member 132 is coupled to the negative electrode terminal 111, the connection member 132 is exposed A through hole 134 may be drilled on the PCB 133.
- the insulating cap 140 is formed of an electrically insulating material, and is formed to surround the insulating mounting member 120 in a state where the connection members 132 and 136 and the protection circuit board 133 are mounted. In addition, bonding of the insulating cap 140 to the top surface of the battery case is achieved by a bonding (Bonding) method.
- the outer surface of the battery case is attached to the outer film 160 to secure the electrical insulation state and display the product information.
- the outer film 160 made of a heat-shrinkable material is manufactured in the form of a tube, wrapped around the battery cell 110, and then applied with heat to be adhered to the battery cell 110 case surface while being contracted.
- FIG. 4 schematically illustrates a partial perspective view of an insulating mounting member mounted on an upper end of a battery cell.
- the insulating mounting member 120 is wider than the top surface L of the battery cell 110 so as to secure a portion where the connection member 136 is connected to the battery cell 110.
- Direction has a small size (l), and the second opening 123 is formed to expose the sealed electrolyte injection portion 113 of the battery cell 110 from the top.
- the receiving side wall 125 protrudes upward from the top surface, and the receiving side wall ( Fastening projections 126, 127, 128, and 129 are formed in the longitudinal direction from 125. As shown in FIG.
- connection members 132 and 136 are coupled to the bottom surface of the PCB 133 by a surface mount technology (SMT) method, and the connection member 132 is connected to the PCB (PCB).
- PCB PCB
- 133 is coupled to the lower surface of the through hole 134.
- the PTC element 137 includes a PTC body 1371, a PCM coupling portion 1372 coupled to the top surface of the PTC body 1372, and a battery cell coupling portion coupled to the bottom surface of the PTC body 1372. 1373, wherein the battery cell coupling part 1373 extends in a horizontal direction from one end of the PCM assembly 130 so that the battery cell coupling part 1373 can be exposed from the upper side of the PCM assembly 130.
- FIG. 7 is a schematic side view of FIG. 6. Referring to FIG. 7 together with FIGS. 1 to 6, the sum H of the storage sidewall 125 and the protrusion heights 126, 127, 128, and 129 of the insulating mounting member 120 is the height H of the PCB. Is the same as
- the secondary battery pack 100 has the PCM 130 mounted on the insulating mounting member 120, and the connection member 136 has the positive electrode terminal 112 via the PTC element 137. ),
- the connection member 132 is electrically connected to the cathode terminal 111 by the through hole 137 on the PCB, so that the electrical connection process can be performed by a simple connection method, the PCM 130 And the total height of the insulating cap 140 is configured to be 3 mm or less to manufacture a secondary battery pack of high energy density compared to the same standard.
- the connecting member A protrudes in a horizontal direction from one end of the PCM assembly and is coupled to the lower surface of the PCM, and the connecting member B is formed on its upper surface. Since it is made of a specific structure coupled in the exposed state by the through hole of the PCB, it is possible to reduce the number of work processes, and to manufacture a more compact battery pack. In addition, this structure can reduce the size of the upper space in which the PCM assembly and the insulating mounting member is mounted in the battery pack, it is possible to increase the battery capacity compared to the same standard.
Landscapes
- 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)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (15)
- 양극/분리막/음극 구조의 전극조립체가 전해액과 함께 전지케이스의 내부에 밀봉되어 있고 상단면에 제 1 및 제 2 전극단자들이 형성되어 있는 전지셀;상기 전지셀의 제 2 전극단자가 노출될 수 있도록 개구가 형성되어 있고, 전지셀의 상단면에 장착되는 전기절연성의 장착부재;보호회로가 형성되어 있고 상기 장착부재 상에 탑재되는 기판(PCB), 및 상기 PCB의 하면에 각각 결합되어 있는 접속부재(A)와 접속부재(B)를 포함하고 있고, 접속부재(A)는 안전소자를 경유하여 제 1 전극단자에 접속되어 있고, 접속부재(B)는 제 2 전극단자에 결합되며, 상기 접속부재(B)가 노출될 수 있는 관통구가 상기 PCB 상에 천공되어 있는 보호회로모듈(PCM); 및상기 접속부재들과 보호회로 기판이 탑재된 상태에서 절연성 장착부재를 감싸면서 전지셀의 상단부에 결합되는 절연성 캡;을 포함하고 있으며,상기 PCM 및 절연성 캡의 전체 높이 합이 3.0 mm 이하인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지케이스는 각형의 금속 캔인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 제 2 전극 단자는 전지셀의 상단면 중앙에 돌출되어 있는 음극 단자이고 상기 제 1 전극 단자는 음극 단자를 제외하고 전지셀의 상단면에 형성되어 있는 양극 단자인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 접속부재들은 표면실장기술(SMT) 방식에 의해 PCB의 하면에 결합되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 접속부재(B)는 PCB의 관통구 하면에 결합되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 안전소자는 PTC 소자인 것을 특징으로 하는 이차전지 팩.
- 제 6 항에 있어서, 상기 PTC 소자는 PTC 본체, 상기 PTC 본체의 상면에 결합되어 있는 PCM 결합부, 및 상기 PTC 본체의 하면에 결합되어 있는 전지셀 결합부를 포함하고 있고, 그 중 전지셀 결합부가 PCM 어셈블리의 상측으로부터 노출될 수 있도록 PCM 어셈블리의 일측 단부로부터 가로방향으로 돌출 연장되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 절연성 장착부재는 접속부재(A)가 전지셀에 연결되는 부위를 확보할 수 있도록 전지셀의 상단면보다 가로방향으로 작은 크기를 가지며, 전지셀의 케이스 상단 돌출부('밀봉된 전해액 주입부')가 상부로부터 노출되는 제 2 개구가 추가로 형성되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 절연성 장착부재에 대한 PCM 어셈블리의 안정적인 장착 상태를 확보할 수 있도록, 장착부재에는 상단면으로부터 수납용 측벽이 상향 돌출되어 있고, 상기 수납용 측벽으로부터 세로방향으로 체결용 돌기가 형성되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 9 항에 있어서, 상기 수납용 측벽 및 돌기 높이의 합이 PCB의 높이와 동일한 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지셀에 대한 절연성 장착부재의 안정적인 장착 상태를 확보할 수 있도록, 장착부재의 하면에는 하나 이상의 체결용 돌기가 하향 돌출되어 있고, 전지셀의 상면에는 상기 체결용 돌기에 대응하는 체결용 만입부가 형성되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지케이스 상단면에 대한 절연성 캡의 결합은 접착(Bonding) 방식에 의해 달성되는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지케이스 외면에는 외장 필름이 부착되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지셀은 각형의 리튬 이차전지 셀인 것을 특징으로 하는 이차전지 팩.
- 전지셀에 장착되는 PCM 어셈블리로서,보호회로모듈(PCM)과, 상기 PCM의 하면에 SMT 방식으로 결합되어 있는 접속부재들(A, B), 및 상기 PCM의 상면에 형성되어 있는 외부 입출력 단자들을 포함하고 있으며,접속부재(A)는 안전소자를 경유하여 제 1 전극단자에 접속되어 있고, 접속부재(B)는 제 2 전극단자에 결합되며, 상기 접속부재(B)가 노출될 수 있는 관통구가 상기 PCB 상에 천공되어 있는 것을 특징으로 하는 PCM 어셈블리.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13746867.4A EP2782160B1 (en) | 2012-02-07 | 2013-02-04 | Secondary battery pack having novel structure |
CN201380004404.1A CN104170117B (zh) | 2012-02-07 | 2013-02-04 | 具有新颖结构的二次电池组 |
JP2014555491A JP2015510233A (ja) | 2012-02-07 | 2013-02-04 | 新規な構造の二次電池パック |
US14/309,453 US10170801B2 (en) | 2012-02-07 | 2014-06-19 | Secondary battery of novel structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0012102 | 2012-02-07 | ||
KR1020120012102A KR101441524B1 (ko) | 2012-02-07 | 2012-02-07 | 신규한 구조의 이차전지 팩 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/309,453 Continuation US10170801B2 (en) | 2012-02-07 | 2014-06-19 | Secondary battery of novel structure |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013119003A1 true WO2013119003A1 (ko) | 2013-08-15 |
Family
ID=48947729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2013/000866 WO2013119003A1 (ko) | 2012-02-07 | 2013-02-04 | 신규한 구조의 이차전지 팩 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10170801B2 (ko) |
EP (1) | EP2782160B1 (ko) |
JP (1) | JP2015510233A (ko) |
KR (1) | KR101441524B1 (ko) |
CN (1) | CN104170117B (ko) |
TW (1) | TWI482334B (ko) |
WO (1) | WO2013119003A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104900819A (zh) * | 2015-06-12 | 2015-09-09 | 福建南平南孚电池有限公司 | 具有封装型芯片散热结构的二次电化学电池封口体及电池 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101726774B1 (ko) * | 2015-02-23 | 2017-04-13 | 주식회사 엘지화학 | 모듈화된 전지팩용 어셈블리 및 이를 포함하는 전지팩 |
CN104993092B (zh) * | 2015-06-12 | 2017-03-08 | 福建南平南孚电池有限公司 | 一种带有充电指示灯的二次电化学电池封口体 |
CN106450060A (zh) * | 2015-08-04 | 2017-02-22 | 郑州比克电池有限公司 | 锂离子电池及其盖板 |
KR102046879B1 (ko) * | 2016-01-18 | 2019-11-20 | 주식회사 엘지화학 | 2차 전지 |
KR102051927B1 (ko) | 2016-10-31 | 2019-12-04 | 주식회사 엘지화학 | 전극단자와 접속단간 접합 상태를 쉽게 확인할 수 있는 보호회로기판 및 이를 포함하는 이차전지팩 |
KR102409424B1 (ko) * | 2017-08-29 | 2022-06-15 | 주식회사 엘지에너지솔루션 | 배터리 모듈 및 그 제조 방법 |
KR102168675B1 (ko) * | 2017-09-28 | 2020-10-21 | 주식회사 엘지화학 | 보호회로모듈을 구비한 파우치형 이차전지 팩 |
JP1667632S (ko) * | 2019-07-05 | 2020-09-07 | ||
JP1667633S (ko) * | 2019-07-05 | 2020-09-07 | ||
JP1667617S (ko) * | 2019-07-05 | 2020-09-07 | ||
JP1667618S (ko) * | 2019-07-05 | 2020-09-07 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008192397A (ja) * | 2007-02-02 | 2008-08-21 | Sanyo Electric Co Ltd | 電池パック |
KR20090039503A (ko) * | 2007-10-18 | 2009-04-22 | 주식회사 엘지화학 | 우수한 에너지 밀도의 이차전지 팩 및 그것을 위한 pcm어셈블리 |
KR20100013466A (ko) * | 2008-07-31 | 2010-02-10 | 이기철 | 초박형 2차 전지에 실장되는 폴리머 피티씨 써미스터 소자및 그 제조방법 |
KR20100089124A (ko) * | 2009-02-03 | 2010-08-12 | 주식회사 퓨처라인 | 보호회로모듈 조립캡을 구비한 이차전지 |
KR20110007761U (ko) * | 2010-01-29 | 2011-08-04 | 주식회사 이랜텍 | 안전소자가 내장된 보호회로모듈을 포함하는 배터리팩 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3316113B2 (ja) * | 1995-07-24 | 2002-08-19 | 株式会社リコー | 二次電池 |
JP3885327B2 (ja) * | 1997-12-19 | 2007-02-21 | ソニー株式会社 | 偏平角型非水電解液二次電池 |
JP2003142043A (ja) | 2001-07-09 | 2003-05-16 | Hitachi Maxell Ltd | 電 池 |
EP1716608B1 (en) * | 2004-02-18 | 2014-05-14 | LG Chem Ltd. | Integral cap assembly containing protection circuit board and secondary battery comprising the same |
KR100858788B1 (ko) * | 2006-10-23 | 2008-09-17 | 주식회사 엘지화학 | 우수한 제조공정성과 구조적 안정성의 이차전지 팩 |
US8703309B2 (en) * | 2006-11-27 | 2014-04-22 | Lg Chem, Ltd. | Battery pack of excellent productability and structural stability |
KR101012728B1 (ko) * | 2007-12-14 | 2011-02-09 | 주식회사 엘지화학 | 신규한 구조의 pcm 어셈블리 및 절연성 장착부재를포함하고 있는 이차전지 팩 |
JP2011243352A (ja) * | 2010-05-17 | 2011-12-01 | Sanyo Electric Co Ltd | パック電池 |
-
2012
- 2012-02-07 KR KR1020120012102A patent/KR101441524B1/ko active IP Right Grant
-
2013
- 2013-02-04 CN CN201380004404.1A patent/CN104170117B/zh active Active
- 2013-02-04 JP JP2014555491A patent/JP2015510233A/ja active Pending
- 2013-02-04 EP EP13746867.4A patent/EP2782160B1/en active Active
- 2013-02-04 WO PCT/KR2013/000866 patent/WO2013119003A1/ko active Application Filing
- 2013-02-05 TW TW102104395A patent/TWI482334B/zh active
-
2014
- 2014-06-19 US US14/309,453 patent/US10170801B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008192397A (ja) * | 2007-02-02 | 2008-08-21 | Sanyo Electric Co Ltd | 電池パック |
KR20090039503A (ko) * | 2007-10-18 | 2009-04-22 | 주식회사 엘지화학 | 우수한 에너지 밀도의 이차전지 팩 및 그것을 위한 pcm어셈블리 |
KR20100013466A (ko) * | 2008-07-31 | 2010-02-10 | 이기철 | 초박형 2차 전지에 실장되는 폴리머 피티씨 써미스터 소자및 그 제조방법 |
KR20100089124A (ko) * | 2009-02-03 | 2010-08-12 | 주식회사 퓨처라인 | 보호회로모듈 조립캡을 구비한 이차전지 |
KR20110007761U (ko) * | 2010-01-29 | 2011-08-04 | 주식회사 이랜텍 | 안전소자가 내장된 보호회로모듈을 포함하는 배터리팩 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2782160A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104900819A (zh) * | 2015-06-12 | 2015-09-09 | 福建南平南孚电池有限公司 | 具有封装型芯片散热结构的二次电化学电池封口体及电池 |
Also Published As
Publication number | Publication date |
---|---|
EP2782160B1 (en) | 2016-07-20 |
KR101441524B1 (ko) | 2014-09-17 |
KR20130090958A (ko) | 2013-08-16 |
TWI482334B (zh) | 2015-04-21 |
US20140302372A1 (en) | 2014-10-09 |
CN104170117B (zh) | 2017-01-25 |
US10170801B2 (en) | 2019-01-01 |
EP2782160A1 (en) | 2014-09-24 |
JP2015510233A (ja) | 2015-04-02 |
CN104170117A (zh) | 2014-11-26 |
EP2782160A4 (en) | 2014-12-31 |
TW201403923A (zh) | 2014-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013119003A1 (ko) | 신규한 구조의 이차전지 팩 | |
WO2010128812A2 (ko) | 신규한 구조의 이차전지 팩 | |
WO2013024989A2 (ko) | 이차전지 팩 | |
WO2013024990A2 (ko) | 이차전지 팩 | |
WO2010044589A2 (ko) | 신규한 구조의 이차전지 팩 | |
WO2013022211A2 (ko) | 이차전지 팩 | |
WO2013019066A2 (ko) | 이차전지 팩 | |
WO2011149224A2 (ko) | 콤팩트한 구조의 전지팩 | |
WO2010044590A2 (ko) | 원통형 이차전지 팩 | |
WO2013062256A1 (ko) | 신규한 구조의 탑 캡 어셈블리 | |
WO2013022210A2 (ko) | 이차전지 팩 | |
WO2011149223A2 (ko) | 신규한 구조의 전지팩 | |
WO2010098571A2 (ko) | 신규한 구조의 이차전지 팩 | |
WO2014189299A1 (ko) | 비돌출 구조의 커넥터를 포함하고 있는 이차전지 팩 | |
WO2015046745A1 (ko) | 보호회로 모듈을 포함하는 이차전지 팩 | |
WO2013022208A2 (ko) | 이차전지 팩 | |
WO2013019067A2 (ko) | 이차전지 팩 | |
WO2015046723A1 (ko) | 보호회로모듈 고정테이프를 포함하는 전지팩 | |
WO2012074220A1 (ko) | 신규한 구조의 이차전지 팩 | |
WO2013168948A1 (ko) | 비정형 구조의 전지셀 및 이를 포함하는 전지모듈 | |
WO2011078536A2 (ko) | 강성이 향상된 전지팩 | |
WO2011093638A2 (ko) | 대용량의 전지팩 | |
WO2015046832A1 (ko) | 보호회로모듈 케이스를 포함하는 전지팩 | |
WO2012008745A2 (ko) | 신규한 구조의 팩 케이스 | |
KR20090039503A (ko) | 우수한 에너지 밀도의 이차전지 팩 및 그것을 위한 pcm어셈블리 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13746867 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2013746867 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013746867 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2014555491 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |