WO2012074220A1 - 신규한 구조의 이차전지 팩 - Google Patents
신규한 구조의 이차전지 팩 Download PDFInfo
- Publication number
- WO2012074220A1 WO2012074220A1 PCT/KR2011/008488 KR2011008488W WO2012074220A1 WO 2012074220 A1 WO2012074220 A1 WO 2012074220A1 KR 2011008488 W KR2011008488 W KR 2011008488W WO 2012074220 A1 WO2012074220 A1 WO 2012074220A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery cell
- battery pack
- electrode terminal
- pcm
- secondary battery
- Prior art date
Links
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005476 soldering Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000010292 electrical insulation Methods 0.000 description 4
- YAHNWSSFXMVPOU-UHFFFAOYSA-N 2,3',4,4',5'-Pentachlorobiphenyl Chemical compound ClC1=CC(Cl)=CC=C1C1=CC(Cl)=C(Cl)C(Cl)=C1 YAHNWSSFXMVPOU-UHFFFAOYSA-N 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002654 heat shrinkable material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002952 polymeric resin Substances 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
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Images
Classifications
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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
-
- 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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 having a novel structure, and more particularly, the electrode assembly is sealed in the battery case together with the electrolyte, and the first electrode terminal and the second electrode terminal and a pair of fastening grooves Battery cells formed on the top of the battery case;
- a protection circuit module including a substrate (PCB) on which a protection circuit is formed, connecting members (A, B) connected to the first and second electrode terminals, and a safety device;
- An insulating mounting member configured to be inserted in a lateral direction while surrounding the top and bottom of the PCM;
- an electrically insulating top cap mounted on an upper end of the battery cell while surrounding the insulating mounting member and having through grooves communicating with the fastening grooves, wherein the PCM is inserted into the upper end of the battery cell.
- the present invention relates to a secondary battery pack having a structure in which a fastening member is coupled to a fastening groove of a battery cell through the through holes of the upper cap while the insul
- 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.
- 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 is connected to the battery cell by welding or soldering via a conductive nickel plate. That is, the battery pack is manufactured by connecting the PCM to the battery cell by welding or soldering a nickel plate to the electrode tab of the PCM, and then welding or soldering the nickel plate to the electrode terminal of the battery cell, respectively.
- 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.
- Still another object of the present invention is to provide a secondary battery pack in which a safety device may immediately sense a temperature of a battery cell to improve safety.
- a battery cell in which an electrode assembly having a cathode / separation membrane / cathode structure is sealed inside the battery case together with an electrolyte, and a first electrode terminal and a second electrode terminal and a pair of fastening grooves are formed on an upper end of the battery case;
- a protection circuit module including a substrate (PCB) on which a protection circuit is formed, connection members (A, B) connected to the first and second electrode terminals, and a safety device;
- An insulating mounting member configured to be inserted in a lateral direction while surrounding the top and bottom of the PCM
- An electrically insulating upper cap mounted on an upper end of the battery cell while surrounding the insulating mounting member and having through holes communicating with the fastening grooves;
- the fastening member is coupled to the fastening groove of the battery cell through the through grooves of the upper cap in a state where the insulating cap and the upper cap is mounted on the top of the battery cell.
- the secondary battery pack since the PCM is inserted into the insulating mounting member, the secondary battery pack can not only maintain an electrically insulating state but also increase mechanical rigidity.
- the "lateral direction” means a direction horizontal to the long axis when the PCM is composed of a long axis and a short axis on a plane. Therefore, "a structure inserted in the lateral direction” means a structure in which the insulating mounting member is inserted in the horizontal direction with respect to the long axis of the PCM. Therefore, the formation of the structure for maintaining the PCM insulated from the battery cell or the like can be achieved by a simple assembling process, and the structure itself in which the PCM is inserted into the insulating mounting member forms a very stable structure as a whole.
- the battery case may be a metal can, preferably an aluminum can or a stainless steel can.
- the first electrode terminal may be a positive electrode terminal and the second electrode terminal may be a negative electrode 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 electrode terminal and a positive electrode terminal, respectively, and are interposed between insulating members such as a gasket therebetween. . Therefore, in the rectangular battery cell structure, the first electrode terminal may be a positive electrode terminal which is an upper surface of the battery case, and the second electrode terminal may be a negative electrode terminal which protrudes on the upper surface of the battery case.
- the fastening grooves may be located on both ends of the upper end of the battery case, one fastening groove may be formed on the first electrode terminal, both fastening grooves are formed on the first electrode terminal It may be.
- connection (electrical connection) of the connection member A and the PCB can be achieved in various ways, and preferably, the connection member A can be coupled to the lower surface of the PCB by soldering.
- the PCM is connected to the connection member (A, B) in the state that is electrically connected to the battery cell electrode terminal is inserted into the opening of the insulating mounting member in a state exposed to the lower portion, the connection member
- the cells A and B may be bent to have a structure mounted on the battery cell.
- the PCM except for the battery cell connection members A and B is mounted on the battery cell while forming an electrically insulated state by the insulating mounting member, the PCM may contribute to the improvement of electrical and mechanical stability of the battery pack.
- the connecting member (A) is coupled to the lower surface of the PCB in a state that extends laterally from one end of the PCB through the opening of the insulating mounting member
- the connecting member (B) is a battery cell
- the connection portion for the second electrode terminal of the may be made of a structure that is electrically connected to the second electrode terminal via the safety element in a state located on the lower surface of the PCB.
- the connection member (B) included in the PCM together with the safety element is coupled to the second electrode terminal of the battery cell by a welding method and electrically connected in a state embedded in the insulating cap, and the connection member By the bending of (B) to form a structure mounted on the top of the battery cell.
- the safety device is a device in which the resistance increases as the temperature rises, preferably a PTC device.
- the PTC device serves to block the connection member B coupled with the PTC device to block current at the top 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 insulating mounting member may preferably have a structure in which a step is formed so that at least a part of the safety device may be exposed. Accordingly, the remaining parts of the battery cell, except for the electrode terminal connection portion and the safety element, can be kept insulated from the outside by the insulating mounting member, and the safety element exposed from the insulating mounting member toward the battery cell is the temperature of the battery cell. It can react more sensitively to, thereby greatly improving the safety of the battery pack. More preferably, the entire safety device may be a structure exposed from the insulating mounting member.
- connection member A and the connection member B are not particularly limited as long as they are conductive materials.
- connection member A and the connection member B may be nickel plates.
- the fastening member coupled to the fastening groove of the battery cell through the through hole of the upper cap may be various, for example, may be a screw, but is not limited thereto.
- an adhesive may be added to the inner excess portion of the through groove, and a separate sealing member may be preferably inserted.
- a separate sealing member examples include a rubber stopper, but are not limited thereto.
- the outer surface of the case of the battery cell may be a structure having an outer film attached. This protects the battery cell from external shock and maintains electrical insulation.
- 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 protective circuit module assembly mounted to the battery cell,
- a protective circuit module assembly in which an electrode assembly having a positive electrode / membrane / cathode structure is sealed inside an battery case together with an electrolyte solution, and the first electrode terminal and the second electrode terminal are mounted on a battery cell formed at an upper end of the battery case.
- a protection circuit module including a substrate (PCB) on which a protection circuit is formed, connecting members (A, B) connected to the first and second electrode terminals, and a safety device;
- An insulating mounting member configured to be inserted in a lateral direction while surrounding the top and bottom of the PCM
- An electrically insulating upper cap mounted on an upper end of the battery cell with the insulating mounting member embedded therein and having through grooves communicating with the fastening grooves;
- Consists of a structure that includes,
- the protective circuit module assembly having such a structure is configured to couple the fastening member to the fastening groove of the battery cell through the through holes of the upper cap while the insulating mounting member and the upper cap are mounted on the top of the battery cell. It may be mounted on the battery cell.
- the PCM assembly In the general assembly process of the battery pack, the PCM assembly is installed on the battery cell by a series of processes in which the connecting member, the PCM, and the like are sequentially coupled and mounted on the battery cell and the top cap is mounted while the insulating tape is attached. Therefore, although it is difficult to expect high mechanical rigidity and the assembly process is complicated, the PCM assembly according to the present invention is mounted on the battery cell by fastening by a fastening member in a state where the insulating cap and the top cap are inserted with the PCM. Therefore, the above problems can be solved at once.
- the present invention also provides a method of manufacturing a secondary battery pack
- connection member (B) (a) coupling the connection member (B) to one side of the safety device
- connection member A manufacturing a PCM by connecting the connection member A in a state in which it protrudes in a transverse direction from one end of the lower surface of the PCB;
- connection member B welding and coupling the connection member B and the second electrode terminal, and bending the connection member B to mount the top cap on the top of the battery cell;
- It provides a method of manufacturing a secondary battery pack comprising a.
- Such a manufacturing method may be omitted at the level of those skilled in the art as necessary, and other processes may be additionally included.
- FIG. 1 is a partial perspective view of an insulating top cap on which an upper end and an insulating mounting member of a battery cell according to an embodiment of the present invention are mounted;
- FIG. 2 is an exploded perspective view of the insulating cap and the top cap with the PCM inserted therein;
- FIG. 3 is a schematic view of an insulating top cap and fastening members mounted on the top of a battery cell;
- FIG. 4 is an exploded perspective view of the PCM and insulating mounting member of FIG. 2;
- connection members A and B and a PTC element are coupled to a lower surface of the PCB;
- FIG. 6 is an exploded perspective view of a battery cell, an insulating lower cap, and an outer film.
- FIG. 1 is a partial perspective view of an insulating top 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 an exploded perspective view of a PCM and an insulating mounting member.
- FIG. 3 is a schematic view of an insulating top cap and a fastening member mounted on an upper end of a battery cell
- FIG. 4 is an exploded perspective view of the PCM and the insulating mounting member of FIG. 2.
- the secondary battery pack 100 includes a battery cell 110, a protective circuit module (PCM) 120, an insulating mounting member 130 into which the PCM 120 is inserted, and an insulating mounting member 130. It wraps around and consists of a structure including an upper cap 140 mounted on the top of the battery cell 110.
- PCM protective circuit module
- the battery cell 110 has an electrode assembly sealed with the electrolyte inside the battery case, and the positive terminal 111 and the negative terminal 112 and a pair of fastening grooves 113 and 114 are disposed on the top of the battery case. It consists of a structure that is formed.
- the PCM 120 includes a substrate (PCB) 123 on which a protection circuit is formed, connecting members 121 and 122 connected to the positive terminal 111 and the negative terminal 112, and a PTC element 124. have.
- the insulating mounting member 130 has a structure that is inserted in the side direction (arrow direction of Figure 4) while wrapping the top and bottom of the PCM (120).
- the upper cap 140 is made of an electrically insulating material, and through holes 143 and 144 communicating with the fastening grooves 113 and 114 are formed at both end portions thereof.
- the upper surface of the battery cell 110 is formed with a negative electrode terminal 112 protruding upward in an insulated state from the battery case made of a metal can, the portion except for the negative terminal 112 forms the positive terminal 111. do.
- the electrolyte injection portion 116 sealed by the metal ball, the polymer resin, or the like is positioned at one side of the top surface of the battery cell 110.
- the fastening members 151 and 152 penetrate the upper cap 130 while the insulating mounting member 130 and the upper cap 140 are mounted on the upper end of the battery cell 110. It is coupled to the fastening grooves 113 and 114 of the battery cell 110 through the grooves 133 and 134, and the sealing members 153 and 154 are inserted into the surplus portions of the through grooves 133 and 134, thereby mechanically A conclusion is made.
- FIG. 5 schematically illustrates a perspective view in which connection members A and B and a PTC device are coupled to a lower surface of the PCB.
- the insulating mounting member 130 has an opening 132 formed at one side thereof so that the PCM 120 can be inserted in the lateral direction.
- Connection members A in a state where the PCM 120 is inserted in the lateral direction A and the PCM 120 is inserted in the insulating mounting member 130 while the electrode terminal connecting portions of the 121 and 122 are exposed.
- B 121, 122 is bent to be mounted on the battery cell top 111.
- the lower end of the insulating mounting member 130 is formed and formed with a structure having a step 135, so that the PTC element 124 may be directly exposed to the battery cell 110.
- the PTC device 124 is a battery cell ( It may be sensitive to the heat generated in 110 to improve the safety.
- connection member A 121 is coupled to the lower surface of the PCB 123 in a state in which it protrudes in a horizontal direction from one end of the PCB 123 through the opening 132 of the insulating mounting member 130.
- connection member B 122 is electrically connected to the negative electrode terminal 112 of the battery cell 110 via the PTC element 124 with the connection portion for the negative electrode terminal 112 located on the bottom surface of the PCB 123. Connected.
- FIG. 7 is an exploded view of the battery cell and the insulating lower cap, the outer film is schematically shown.
- an insulating lower cap 150 coupled to a lower end of the battery cell 110 and an outer film 160 covering the outer surface of the case of the battery cell 110 are attached.
- the outer film 160 which secures the electrical insulation state from the outside of the battery case and displays the information of the product is made of a heat shrinkable material, the outer film 160 is manufactured in the form of a tube to wrap the battery cell 110 It is attached to the structure in close contact with the contraction to the surface of the battery cell 110 by applying a.
- the secondary battery pack according to the present invention may be manufactured in a structure having improved stability by a simple process of inserting a PCM, based on a specific structure of the insulating mounting member.
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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)
- Secondary Cells (AREA)
Abstract
Description
Claims (16)
- 양극/분리막/음극 구조의 전극조립체가 전해액과 함께 전지케이스의 내부에 밀봉되어 있고, 제 1 전극단자 및 제 2 전극단자와 한 쌍의 체결홈들이 전지케이스의 상단에 형성되어 있는 전지셀;보호회로가 형성되어 있는 기판(PCB), 상기 제 1 및 제 2 전극단자들에 접속되는 접속부재들(A, B), 및 안전소자를 포함하고 있는 보호회로모듈(PCM);상기 PCM의 상단 및 하단을 감싸면서 측면방향으로 삽입되는 구조로 이루어져 있는 절연성 장착부재; 및상기 절연성 장착부재를 감싸면서 전지셀의 상단에 장착되며, 상기 체결홈들에 연통되는 관통홈들이 형성되어 있는 전기 절연성의 상단 캡;을 포함하고 있고상기 전지셀의 상단에 PCM을 삽입한 절연성 장착부재와 상단 캡을 탑재한 상태에서 체결부재를 상기 상단 캡의 관통홈들을 통해 전지셀의 체결홈에 결합시키는 구조로 이루어진 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 전지케이스는 금속 캔인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 제 1 전극단자는 양극단자이고 제 2 전극단자는 음극단자인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 체결홈들은 전지케이스 상단의 양측 단부 상에 위치하는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 접속부재(A)는 솔더링에 의해 PCB의 하면에 결합되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 PCM은, 접속부재들(A, B)의 전지셀 전극단자에 전기적으로 연결되는 부위가 하부로 노출된 상태로 절연성 장착부재의 개구에 삽입된 상태에서, 상기 접속부재들(A, B)를 절곡하여 전지셀 상에 탑재되는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서,상기 접속부재(A)는 절연성 장착 부재의 개구를 통해 PCB의 일측 단부로부터 가로방향으로 돌출 연장된 상태로 PCB의 하면에 결합되어 있고,상기 접속부재(B)는 전지셀의 제 2 전극단자에 대한 접속 부위가 PCB의 하면에 위치한 상태로 안전소자를 경유하여 제 2 전극단자와 전기적으로 연결되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 안전소자는 PTC 소자인 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 절연성 장착부재는, 안전소자의 적어도 일부가 노출될 수 있도록, 단차가 형성되어 있는 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 접속부재(A)와 접속부재(B)는 각각 니켈 플레이트로 이루어진 것을 특징으로 하는 이차전지 팩.
- 제 1 항에 있어서, 상기 체결부재는 나사인 것을 특징으로 하는 이차전지 팩.
- 제 11 항에 있어서, 상기 전지셀에 대한 체결을 위해 체결부재가 삽입된 관통홈에는 밀봉부재를 추가로 장착되어 있는 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.
- 양극/분리막/음극 구조의 전극조립체가 전해액과 함께 전지케이스의 내부에 밀봉되어 있고, 제 1 전극단자 및 제 2 전극단자가 전지케이스의 상단에 형성되어 있는 전지셀에 장착되는 보호회로모듈 어셈블리로서,보호회로가 형성되어 있는 기판(PCB), 상기 제 1 및 제 2 전극단자들에 접속되는 접속부재들(A, B), 및 안전소자를 포함하고 있는 보호회로모듈(PCM);상기 PCM의 상단 및 하단을 감싸면서 측면방향으로 삽입되는 구조로 이루어져 있는 절연성 장착부재; 및상기 절연성 장착부재를 내장한 상태로 전지셀의 상단에 장착되며, 상기 체결홈들에 연통되는 관통홈들이 형성되어 있는 전기 절연성의 상단 캡;을 포함하고 있고,상기 전지셀의 상단에 PCM을 삽입한 절연성 장착부재와 상단 캡을 탑재한 상태에서 체결부재를 상기 상단 캡의 관통홈들을 통해 전지셀의 체결홈에 결합시키는 구조로 이루어진 것을 특징으로 하는 보호회로모듈 어셈블리.
- 이차전지 팩을 제조하는 방법으로서,(a) 안전소자의 일측에 접속부재(B)를 결합하는 과정;(b) 보호회로가 형성되어 있는 기판(PCB)의 하면에 상기 안전소자의 타측을 결합하는 과정;(c) 접속부재(A)를 PCB 하면의 일측 단부로부터 가로방향으로 돌출 연장된 상태로 결합하여 PCM을 제조하는 과정;(d) 접속부재(A)의 제 1 전극단자 접속부위와 접속부재(B)의 제 2 전극단자 접속부위가 개방된 형태의 절연성 장착부재에 PCM을 삽입하는 과정;(e) PCM을 절연성 상단캡에 내장하는 과정;(e) 접속부재(B)와 제 2 전극단자를 용접하여 결합한 뒤, 상기 접속부재(B)를 절곡하여 상단 캡을 전지셀 상단에 장착하는 과정;(g) 상단 캡과 전지셀을 나사결합에 의하여 체결하여 제 1 전극단자와 접속부재(A)가 전기적 연결 및 기계적 결합을 이루는 과정;(h) 전지셀 하단과 절연성 하단 캡을 접착제에 의해 결합하는 과정;(i) 나사결합 방식으로 이루어진 상단 캡의 관통홈 상에 접착제를 투여하거나 밀폐부재를 삽입하는 과정; 및(j) 외장 필름으로 전지팩의 외면을 감싸는 과정;을 포함하는 것을 특징으로 하는 전지팩 제조방법.
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JP2013525853A JP5718467B2 (ja) | 2010-12-02 | 2011-11-09 | 新規構造を有する二次電池パック |
EP11844944.6A EP2624336B1 (en) | 2010-12-02 | 2011-11-09 | Secondary battery pack having a novel structure |
CN201180031097.7A CN102959766B (zh) | 2010-12-02 | 2011-11-09 | 具有新型结构的二次电池组 |
US13/683,381 US8709623B2 (en) | 2010-12-02 | 2012-11-21 | Secondary battery pack including insulative mounting member into which PCM is inserted in lateral direction |
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KR1020100122325A KR101198026B1 (ko) | 2010-12-02 | 2010-12-02 | 신규한 구조의 이차전지 팩 |
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US13/683,381 Continuation US8709623B2 (en) | 2010-12-02 | 2012-11-21 | Secondary battery pack including insulative mounting member into which PCM is inserted in lateral direction |
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EP (1) | EP2624336B1 (ko) |
JP (1) | JP5718467B2 (ko) |
KR (1) | KR101198026B1 (ko) |
CN (1) | CN102959766B (ko) |
TW (1) | TWI445227B (ko) |
WO (1) | WO2012074220A1 (ko) |
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KR101040975B1 (ko) * | 2009-02-26 | 2011-06-16 | 주식회사 엘지화학 | 신규한 구조의 이차전지 팩 |
KR101684349B1 (ko) * | 2013-09-30 | 2016-12-08 | 주식회사 엘지화학 | 보호회로모듈 케이스를 포함하는 전지팩 |
US9685801B2 (en) * | 2014-04-30 | 2017-06-20 | Lg Chem, Ltd. | Circuit board for secondary battery having current interrupter and battery pack including the same |
KR101724008B1 (ko) * | 2015-04-07 | 2017-04-06 | 삼성에스디아이 주식회사 | 이차 전지 |
CN106887562B (zh) | 2015-12-15 | 2020-12-04 | 小米科技有限责任公司 | 电芯的保护主板、电子终端和电子终端用电芯的组装方法 |
KR102161627B1 (ko) * | 2016-11-29 | 2020-10-05 | 삼성에스디아이 주식회사 | 이차 전지 |
KR102591517B1 (ko) * | 2018-05-15 | 2023-10-19 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20190134458A (ko) | 2018-05-25 | 2019-12-04 | 주식회사 엘지화학 | 배터리 하우징 및 이를 포함하는 배터리 모듈 |
CN109411648B (zh) * | 2018-12-14 | 2023-07-04 | 上海羿煜电子科技有限公司 | 一种安全快速接线式电池接线盒及连线方法 |
CN112397818A (zh) * | 2020-11-25 | 2021-02-23 | 浙江华东光电仪器有限公司 | 一种防电池反接电池盖及其工作方法 |
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JP2013536557A (ja) | 2013-09-19 |
EP2624336A4 (en) | 2013-10-16 |
US8709623B2 (en) | 2014-04-29 |
KR20120060699A (ko) | 2012-06-12 |
EP2624336A1 (en) | 2013-08-07 |
CN102959766B (zh) | 2015-09-09 |
TW201236236A (en) | 2012-09-01 |
CN102959766A (zh) | 2013-03-06 |
TWI445227B (zh) | 2014-07-11 |
EP2624336B1 (en) | 2014-05-14 |
JP5718467B2 (ja) | 2015-05-13 |
KR101198026B1 (ko) | 2012-11-06 |
US20130084472A1 (en) | 2013-04-04 |
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