KR100274891B1 - Prismatic secondary battery - Google Patents
Prismatic secondary battery Download PDFInfo
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- KR100274891B1 KR100274891B1 KR1019980016436A KR19980016436A KR100274891B1 KR 100274891 B1 KR100274891 B1 KR 100274891B1 KR 1019980016436 A KR1019980016436 A KR 1019980016436A KR 19980016436 A KR19980016436 A KR 19980016436A KR 100274891 B1 KR100274891 B1 KR 100274891B1
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- battery
- electrode
- secondary battery
- rolls
- electrode rolls
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- 238000005192 partition Methods 0.000 claims description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- 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
- H01M50/50—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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
본 발명은 각형 이차 전지에 관한 것으로, 좀더 상세하게는 컴팩트한 구조로 전지 기전력의 상승 및 고용량화를 도모함과 아울러 구동전압이 상이한 포터블 기기에 공용화할 수 있도록 한 새로운 구조의 각형 이차 전지에 관한 것이다.The present invention relates to a rectangular secondary battery, and more particularly, to a rectangular secondary battery having a new structure, which can be used for portable devices having different driving voltages while increasing battery electromotive force and increasing capacity in a compact structure.
각형 이차 전지는 포터블 기기를 더욱 소형화하거나 외형적 디자인의 다양화를 도모하기 위하여 각형으로 제작된 케이스 내에 극판군을 말은 전극롤을 삽입하고 전해액을 주입한 후 밀봉시킨 구조로 된 전지이다.In order to further miniaturize a portable device or to diversify the external design, the square secondary battery is a battery having a structure in which an electrode roll, which is rolled up with a group of electrode plates, is inserted into a case made of a square, and an electrolyte is injected and then sealed.
특히 각형 리튬이온 이차전지의 경우, 하나의 각형 캔 내부에 각각 하나의 양극과 음극을 세퍼레이터를 사이에 두고 겹쳐서 권취함으로써 전극롤(jelly-roll)을 제작한 후, 이 전극롤을 상기 각형 캔 내에 삽입될 수 있는 형태가 되도록 프레스로 성형하여 캔에 삽입한 다음, 캔 내부에 전해액을 충전하고 캔의 개구부에 캡어셈블리를 덮어 밀봉함으로써 전지를 제작한다.In particular, in the case of a rectangular Li-ion secondary battery, an electrode roll is produced by winding up one positive electrode and one negative electrode with a separator interposed therebetween in one rectangular can, and then rolls the electrode roll into the rectangular can. The battery is manufactured by molding a press so as to be able to be inserted into the can, and then filling the can with an electrolyte solution and sealing the cap assembly by covering the opening of the can.
이렇게 제작된 전지는 공칭전압이 3.6V인 기기에 세트되어 사용되는 것인 바, 종래에는 전지를 사용하는 기기에서 요구되는 구동전압이 3.6V 이상인 경우에 낱셀을 두개이상 직렬로 연결한 팩(PACK)전지가 사용되었다.The battery manufactured as described above is used in a device having a nominal voltage of 3.6 V. In the related art, when a driving voltage required for a device using a battery is 3.6 V or more, a pack in which two or more cells are connected in series is provided. A battery was used.
그러나, 기기의 소형화, 박형화하는 추세에서 전술한 바와같이 전지셀을 직렬로 연결한 팩전지를 사용한다는 것은 케이스가 차지하는 불용공간(dead space)으로 인해 공간활용적 측면에서 비효율적이고, 이 직렬연결된 셀들을 수지테이프로 몰딩하여야 하므로 외관이 불량하게 된다.However, in the trend of miniaturization and thinning of devices, as described above, using a battery pack in which battery cells are connected in series is inefficient in terms of space utilization due to dead space occupied by the case, and the series cells are connected in series. Since the molds must be molded with resin tape, the appearance becomes poor.
또, 전술한 종래의 각형 전지의 경우, 동일한 외형규격이라도 공칭전압이 낮은 전지를 제작하기 위해서는 별도의 생산라인에서 제조하거나 동일 생산라인에서 별도의 공정으로 제조하여야 한다는 문제점이 있다.In addition, in the case of the conventional rectangular battery described above, in order to manufacture a battery having a low nominal voltage even in the same external specification, there is a problem in that it is manufactured in a separate production line or in a separate process in the same production line.
또한, 사용자 입장에서 보면, 최근 2차 전지를 사용하는 포터블기기가 다양화됨에 따라 기기들에 맞는 각각의 전지들을 따로 준비하여야 하고, 더욱이 출장 등으로 인해 장시간동안 사용하여야 하는 경우에는 그 전지들에 맞는 각각의 충전기들을 모두 준비하여야 하는 불편이 있었다.In addition, from the user's point of view, as portable devices using secondary batteries have recently diversified, respective batteries suitable for the devices have to be prepared separately. There was a hassle to prepare all the chargers that fit.
전술한 종래의 문제점을 해결하기 위해 안출된 본 발명의 목적은 낱셀을 연결하여 제작하지 않고서도 높은 기전력을 발생하는 각형 이차전지를 제공함에 그 목적을 두고 있다.An object of the present invention devised to solve the above-mentioned conventional problems is to provide a rectangular secondary battery that generates a high electromotive force without connecting a single cell.
아울러, 본 발명의 다른 목적은 종래의 팩전지에서 캔이 차지하는 불용공간을 최소화함으로써 고용량화를 도모하려는 것이다.In addition, another object of the present invention is to increase the capacity by minimizing the unused space occupied by the can in the conventional pack battery.
본 발명의 또다른 목적은 전지 활용도를 더욱 향상시켜 구동전압이 상이하더라도 비슷한 용량의 전지를 사용하는 모든 포터블 기기의 전지 수납함 및 콘넥터를 규격화한 경우에 공용화될 수 있도록 하려는 것이다.Another object of the present invention is to further improve the battery utilization, so that even if the driving voltage is different, it can be used in the case of standardizing the battery holder and the connector of all portable devices using a battery of similar capacity.
도 1 은 본 발명의 실시예에 의한 각형 리튬이온 이차전지의 구성을 보인 개략단면도1 is a schematic cross-sectional view showing the configuration of a prismatic lithium ion secondary battery according to an embodiment of the present invention
도 2 은 본 발명의 실시예에 의한 각형 이차전지의 외형을 보인 사시도Figure 2 is a perspective view showing the appearance of the square secondary battery according to an embodiment of the present invention
도 3 은 본 발명의 실시예에 의한 직렬접속시의 배선연결을 보인 회로도3 is a circuit diagram showing wiring connections in series connection according to an embodiment of the present invention;
도 4 은 본 발명의 실시예에 의한 병렬접속시의 배선연결을 보인 회로도4 is a circuit diagram showing a wiring connection in parallel connection according to an embodiment of the present invention;
도 5 은 본 발명의 실시예에 의한 전지조립시의 캔의 일부를 전개한 사시도5 is a perspective view showing a part of the can during battery assembly according to an embodiment of the present invention;
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
20-캔 21-격벽20-can 21-bulk
40-전극롤 41-탭40-electrode roll 41-tap
43-도전리드 47-절연판43-conductive lead 47-insulation plate
60-캡어셈블리 61-양극단자60-cap assembly 61-anode terminal
63-안전변 SW-절환스위치63-safety switch SW-switching switch
전술한 목적을 달성하기 위한 본 발명의 각형 이차전지는, 전지케이스를 이루는 캔 내부에 양극과 세퍼레이터 및 음극이 함께 권취된 전극롤이 적어도 복수개가 삽입되어 제작된다.In the rectangular secondary battery of the present invention for achieving the above object, at least a plurality of electrode rolls in which a positive electrode, a separator, and a negative electrode are wound together are inserted into a can forming a battery case.
특히, 상기 각각의 전극롤은 평면외형상 사각으로 성형되는 것이 바람직하며, 이는 전극롤을 구성하는 양극 및 음극의 유효공간을 더욱 확장할 수 있어 전지의 고용량화를 실현할 수 있게 된다.In particular, it is preferable that each of the electrode rolls is formed into a planar outer shape square, which can further extend the effective space of the positive electrode and the negative electrode constituting the electrode roll, thereby realizing high capacity of the battery.
또한, 본 발명의 각형 이차전지는, 전술한 캔 내부에 복수개의 전극롤을 삽입하여 제작하는 구성과 아울러, 상기 전극롤간의 접속을 직렬 또는 병렬로 절환하기 위한 절환스위치가 구비되게 하며, 이로써 구동전압이 상이한 규격화 포터블 기기들에 공용될 수 있게 된다.In addition, the rectangular secondary battery of the present invention is provided with a configuration in which a plurality of electrode rolls are inserted into the can and the switching switch for switching the connection between the electrode rolls in series or in parallel. The voltage can be shared with different standardized portable devices.
이하, 도면을 참조하여 본 발명의 바람직한 실시예를 더욱 상세히 설명한다.Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention in more detail.
도 1 은 본 발명의 실시예에 의한 각형 리튬이온 이차전지의 구성을 보인 개략단면도로서, 각형 리튬이온 이차전지의 케이스를 이루는 캔(20) 내부에는 양극과 세퍼레이터 및 음극이 함께 권취되어 평면외형상 대략 사각으로 프레스로 성형된 두개의 전극롤(40)이 삽입되며, 상기 캔(20) 내부에는 상기 두 전극롤(40)을 구획하는 격벽(21)을 형성하여 전지 반응시의 상호간의 영향이 최소화되게 한다.1 is a schematic cross-sectional view showing the configuration of a prismatic lithium ion secondary battery according to an embodiment of the present invention, the positive electrode, the separator and the negative electrode are wound together in a can 20 forming a case of the prismatic lithium ion secondary battery, the outer appearance of the plane Two electrode rolls 40 formed by pressing in a substantially rectangular shape are inserted, and a partition wall 21 partitioning the two electrode rolls 40 is formed in the can 20 to mutually influence the battery reaction. To be minimized.
한편, 캔(20)의 상부에는 방폭기능을 수행하는 안전변(63)과, 인슐레이터(65)에 의해서 캔(20)과 전기적으로 분리된 양극단자(61)를 포함하는 캡어셈블리(60)가 마련되며, 그 장착구조는 종래의 각형 리튬이온 전지와 동일하게 할 수 있다. 또, 캔(20)은 두 전극롤(40)이 형성하는 최저전위 개소인 음극에 탭(41)을 통해서 연결된다.On the other hand, a cap assembly 60 including a safety valve 63 that performs an explosion-proof function and an anode terminal 61 electrically separated from the can 20 by an insulator 65 is provided above the can 20. The mounting structure can be the same as that of a conventional rectangular lithium ion battery. The can 20 is connected to the cathode, which is the lowest potential point formed by the two electrode rolls 40, through the tab 41.
또한, 본 발명은 상기 두 전극롤(40)이 서로 직렬 또는 병렬접속되게 하여 구성할 수 있다.In addition, the present invention can be configured so that the two electrode rolls 40 are connected in series or in parallel with each other.
전술한 전극롤(40)의 직렬접속은 전지의 작동전압이 높게 요구될 때 행하고, 병렬접속은 전지의 작동전압이 낮게 요구될 때 행한다. 예컨대, 리튬이온 이차전지의 경우에는 직렬접속시에는 7.2V, 병렬접속시에는 3.6V의 기전력이 발생한다. 여기에서, 상기한 병렬접속의 경우에는 하나의 전극롤(40)을 사용할 때에 비해 두배로 용량이 향상되는 것은 물론이다.The series connection of the electrode roll 40 described above is performed when the operating voltage of the battery is high, and the parallel connection is performed when the operating voltage of the battery is low. For example, in the case of a lithium ion secondary battery, an electromotive force of 7.2 V occurs in series connection and 3.6 V in parallel connection. Here, of course, in the case of the parallel connection described above, the capacity is doubled as compared to when one electrode roll 40 is used.
특히, 직렬접속의 경우에는, 상기 두 개의 전극롤(40) 중 하나는 양극, 다른 하나는 음극이 서로 도전리드(43)를 통해 연결되고, 상기 각각의 전극롤(40)의 연결되지 않은 음극과 양극은 탭(41)을 통해서 음극단자로 사용되는 캔(20)과 상기 캔(20) 상부의 캡어셈블리(60)에 마련된 양극단자(61)로 각각 연결된다.In particular, in the case of a series connection, one of the two electrode rolls 40 is the positive electrode, the other is connected to each other through the conductive lead 43, the unconnected negative electrode of each electrode roll 40 The positive electrode and the positive electrode are connected to the can 20 used as the negative electrode terminal through the tab 41 and the positive electrode terminal 61 provided on the cap assembly 60 on the can 20.
도면의 미설명부호 47은 전극롤(40)의 하부에 덧대어지는 절연판으로, 극판이 캔(20)과의 접촉으로 인해 단락되는 것을 방지한다.Reference numeral 47 in the drawing is an insulating plate that is padded under the electrode roll 40 to prevent the electrode plate from shorting due to contact with the can 20.
도 2 은 본 발명의 실시예에 의한 각형 이차전지의 외형을 보인 사시도로서, 필요에 따라서는 캔(20)의 외부로 조작부가 노출된 절환스위치(SW)를 포함하여 구성할 수 있다.FIG. 2 is a perspective view illustrating an external shape of a rectangular secondary battery according to an exemplary embodiment of the present invention, and may be configured to include a switching switch SW in which an operation unit is exposed to the outside of the can 20 as needed.
상기 절환스위치(SW)는 사용자의 필요에 따라 상기 두 전극롤(40)을 도 3 에 도시된 바와같이 직렬연결 또는 도 4 에 도시된 바와같이 병렬연결하기 위한 절환수단이다.The switching switch SW is a switching means for connecting the two electrode rolls 40 in series as shown in FIG. 3 or in parallel as shown in FIG. 4 as required by a user.
상기 절환스위치(SW)는 도 5 에 도시된 바와같이 캔(20)의 소정부위를 함몰시켜 형성한 장착부(23)에 몰입장착하여 전해액에 침수되지 않게 하는 것이 바람직하다. 이를 위하여, 전극롤(40)과 절환스위치(SW)를 연결하는 배선(45)은 캔(20)을 관통하여 장착부(23)로 취출되도록 하되, 전술한 캔(20)의 밀봉이 완료된 후 관통부위의 밀봉이 중요하다.As shown in FIG. 5, the changeover switch SW is immersed in the mounting portion 23 formed by recessing a predetermined portion of the can 20 so as not to be immersed in the electrolyte. To this end, the wire 45 connecting the electrode roll 40 and the switching switch SW is to be taken out through the can 20 to the mounting part 23, and then through the sealing of the can 20 described above. The sealing of the site is important.
이와같이 구성된 본 발명은 전지 제조시, 전술한 바와같이 캔(20) 내부에 두 전극롤(40)을 구획하는 격벽(21)을 형성할 경우, 도 5 에 도시된 바와같이 캔(20)의 측면을 개구하여 전극롤(40)을 삽입하고 전해액을 주입한 후, 개구된 측면판을 닫고서 레이저로 밀봉하는 과정으로 조립하고, 상기 절환스위치(SW)로 연결되는 캔(20)의 관통부위는 전지내압을 견딜 수 있는 실링재로서 밀봉한다.According to the present invention configured as described above, when the partition wall 21 is formed in the can 20 to partition the two electrode rolls 40 as described above, the side of the can 20 as shown in FIG. 5. After inserting the electrode roll 40 to insert the electrolyte and injecting the electrolyte, and then assembled by the process of closing the open side plate by sealing with a laser, the through portion of the can 20 connected to the switching switch (SW) It is sealed as a sealing material capable of withstanding the battery internal pressure.
만일, 캔(20) 내부에 상기의 격벽(21)을 형성하지 않을 경우에는 통상적인 전지제조방법과 동일하게 캔(20) 상부를 개구시켜 전극롤(40)의 삽입 및 전해액의 주입을 완료한 후 캡어셈블리(60)를 얹어 레이저로 밀봉하는 과정으로 조립하면 된다.If the partition wall 21 is not formed in the can 20, the top of the can 20 is opened in the same manner as a conventional battery manufacturing method to complete the insertion of the electrode roll 40 and the injection of the electrolyte solution. After the cap assembly 60 is put on the assembly by the process of sealing with a laser.
이와같은 과정으로 제조되는 본 발명의 각형 이차전지는 두 전극롤(40)의 직렬연결에 의한 전압증대를 용이하게 구현할 수 있게 되며, 종래의 팩전지에서 캔(20)이 차지하는 불용공간을 활용할 수 있게 되므로 전지의 용량 및 수명특성을 향상할 수 있게 된다. 더욱이 전극롤(40)을 사각으로 형성함으로써 전지내부의 활물질 수용량을 늘일 수 있으므로 상기한 전지용량 및 수명특성을 더욱 향상시킬 수 있다. 따라서, 종래의 팩전지와 동일한 용량의 조건에서는 전지의 박형화 및 소형화가 가능하게 된다.The square secondary battery of the present invention manufactured by such a process can easily implement the voltage increase by the series connection of the two electrode rolls 40, can utilize the unused space occupied by the can 20 in the conventional pack battery. Therefore, it is possible to improve the capacity and life characteristics of the battery. In addition, since the electrode roll 40 is formed in a square shape, the capacity of the active material in the battery can be increased, thereby further improving the battery capacity and lifespan characteristics. Therefore, the battery can be made thinner and smaller in size under the same capacity as a conventional pack battery.
또한, 본 발명은 하나의 캔(20) 내부에 두 개의 전극롤(40)을 삽입하여 제작하므로 절환스위치(SW)를 생략하여 제작한 경우, 각각의 캔(20) 내부에 전극롤(40)을 삽입하여 낱셀로 제작한 후 배선연결하여 몰딩시켜 제작하던 종래에 비해서 제작공정이 간소화된다.In addition, since the present invention is manufactured by inserting two electrode rolls 40 into one can 20, when the switch SW is omitted, the electrode rolls 40 are formed in each can 20. The manufacturing process is simplified as compared with the conventional manufacturing by inserting a single cell and then molded by wiring connection.
이러한 구조적 특징에 의해서, 캡어셈블리(60)에 마련된 양극단자(61)에서 출력된 정전위의 전류는 사용하고자 하는 기기의 부하요소를 흐른 후 상대적으로 부전위인 음극단자로 사용된 캔(20)으로 흐르게 되는 것이다.Due to this structural feature, the current of the electrostatic potential output from the positive electrode terminal 61 provided in the cap assembly 60 flows to the load element of the device to be used, and then to the can 20 used as a relatively negative negative electrode terminal. It will flow.
이때, 본 발명은 절환스위치(SW)를 조작하여, 사용하고자 하는 기기의 구동전압에 맞게 전지 전압을 가변할 수 있다. 즉, 작동전압이 높은 기기에 사용하고자 할 경우에는 절환스위치(SW)를 조작함으로써 상기 두 전극롤(40)이 도 3 에 도시된 바와같이 직렬연결되게 하고, 상대적으로 작동전압이 절반인 기기에 사용하고자 할 경우에는 절환스위치(SW)를 반대위치로 절환조작하여 도 4 에 도시된 바와같이 상기 두 전극롤(40)이 서로 병렬연결되게 한다.In this case, the present invention may operate the changeover switch (SW) to vary the battery voltage according to the driving voltage of the device to be used. In other words, in order to use the apparatus having a high operating voltage, the two electrode rolls 40 are connected in series as shown in FIG. 3 by manipulating a switching switch (SW). In order to use it, the switching switch SW is switched to the opposite position so that the two electrode rolls 40 are connected in parallel to each other as shown in FIG. 4.
따라서, 소비전력이 비슷한 포터블기기의 전지 수납함 및 콘넥터를 규격화 한다면, 본 발명의 각형 이차전지 하나만으로 공통적으로 사용할 수 있게 된다.Therefore, if the battery box and the connector of the portable device with similar power consumption are standardized, only one rectangular secondary battery of the present invention can be used in common.
예를 들어, 사용자가 서로 구동전압이 3.6V 및 7.2V로 두배 차이인 카메라와 카세트플레이어를 함께 휴대하고서 여행하는 경우, 절환스위치(SW)가 마련된 본 발명의 각형 이차전지 하나만으로도 전술한 두 기기를 사용할 수 있게 되며, 또한 전지를 충전하기 위한 충전기 역시도 하나만 휴대하면 된다.For example, when a user travels with a camera and a cassette player having a double difference in driving voltages of 3.6V and 7.2V, the two devices described above are provided with only one rectangular secondary battery of the present invention provided with a switching switch (SW). You will be able to use it, and you also need to carry only one charger to charge the battery.
이상에서 설명한 바와같이 본 발명의 각형 이차전지는 종래에 비해 다음과 같은 효과가 있다.As described above, the rectangular secondary battery of the present invention has the following effects as compared to the prior art.
캔 내에 삽입한 전극롤을 직렬접속하여 전지를 제작함으로써 높은 기전력을 발생시킬 수 있음은 물론이고 불용공간을 최소화하여 전지용량 및 수명특성을 향상시킬 수 있으며, 종래에 비해 전지의 제조공정을 간소화할 수 있게 된다.By connecting the electrode rolls inserted into the cans in series, the battery can be produced, and high electromotive force can be generated. Also, the battery capacity and life characteristics can be improved by minimizing the dead space. It becomes possible.
또, 종래와 동일한 용량을 갖도록 제조하는 조건에서는 전지의 박형화 및 소형화가 가능하다.In addition, the battery can be made thinner and smaller in size under the same conditions as conventionally manufactured.
또한, 본 발명은 전지 활용도를 더욱 향상시킴으로써 구동전압이 상이하더라도 비슷한 용량의 전지를 사용하는 모든 포터블 기기들의 전지 수납함 및 콘넥터를 동일하게 규격화한 경우에 본 발명의 전지 하나로 공용할 수 있는 효과가 있다.In addition, the present invention further improves battery utilization, and even when the driving voltages are different, when the battery holders and connectors of all portable devices that use batteries having similar capacities are equally standardized, there is an effect that the batteries of the present invention can be used as one. .
한편, 본 발명은 특정의 바람직한 실시예에 국한하지 않고 청구범위에 기재된 기술적 권리 내에서는 당업계의 통상적인 지식에 의하여 다양한 응용이 가능함은 물론이다.On the other hand, the present invention is not limited to the specific preferred embodiment, it is a matter of course that a variety of applications are possible by ordinary knowledge in the art within the technical rights described in the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980016436A KR100274891B1 (en) | 1998-05-08 | 1998-05-08 | Prismatic secondary battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980016436A KR100274891B1 (en) | 1998-05-08 | 1998-05-08 | Prismatic secondary battery |
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| Publication Number | Publication Date |
|---|---|
| KR19990084566A KR19990084566A (en) | 1999-12-06 |
| KR100274891B1 true KR100274891B1 (en) | 2001-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980016436A KR100274891B1 (en) | 1998-05-08 | 1998-05-08 | Prismatic secondary battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9088013B2 (en) | 2011-01-10 | 2015-07-21 | Samsung Sdi Co., Ltd. | Case for battery comprising bent edge and seal, and secondary battery including the case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100822188B1 (en) * | 2001-10-24 | 2008-04-16 | 삼성에스디아이 주식회사 | Rectangular type secondary battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9088013B2 (en) | 2011-01-10 | 2015-07-21 | Samsung Sdi Co., Ltd. | Case for battery comprising bent edge and seal, and secondary battery including the case |
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| KR19990084566A (en) | 1999-12-06 |
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