KR100537602B1 - Cap assembly used in Secondary battery and method for making the same - Google Patents
Cap assembly used in Secondary battery and method for making the same Download PDFInfo
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- KR100537602B1 KR100537602B1 KR10-1999-0026474A KR19990026474A KR100537602B1 KR 100537602 B1 KR100537602 B1 KR 100537602B1 KR 19990026474 A KR19990026474 A KR 19990026474A KR 100537602 B1 KR100537602 B1 KR 100537602B1
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- cap plate
- electrode
- cap
- hole
- plate
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- 238000000034 method Methods 0.000 title claims description 7
- 238000003466 welding Methods 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method 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
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3883—Arrangements for mounting batteries or battery chargers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
목적: 전극 리벳의 결합력에 의한 캡 플레이트의 변형을 보상하여 캔과의 용접 품질 및 실링 특성을 향상시킬 수 있도록 한 이차전지의 캡 어셈블리 및 그 제조방법을 제공함에 목적을 두고 있다.PURPOSE: To provide a cap assembly of a secondary battery and a method of manufacturing the same to compensate for deformation of the cap plate due to the bonding force of the electrode rivets to improve welding quality and sealing properties with the can.
구성: 캔의 개구에 용접될 캡 플레이트를 알루미늄이나 알루미늄 합금으로 제조하고, 상기 캡 플레이트에 관통 구멍을 형성하며, 그 구멍에서 최근 거리에 위치한 측변을 오목하게 절취 형성하여 양측변 사이의 폭을 다른 곳에 비해 축소 형성되게 하고, 상기 구멍의 내주 및 주변에 절연수단을 개재하여 전극 리벳을 삽입 및 체결하여 조립한다.Construction: The cap plate to be welded to the can's opening is made of aluminum or aluminum alloy, and the through hole is formed in the cap plate, and the side that is located at the most recent distance from the hole is concavely cut to form a different width between the two sides. It is made to be reduced compared to the place, and is assembled by inserting and fastening the electrode rivets through the insulating means on the inner circumference and the periphery of the hole.
효과: 전극 리벳의 결합시 발생하는 캡 플레이트의 변형으로 오목부가 제거되고, 양측변이 편평하게 된다. 따라서 캡 플레이트와 캔의 사이 간격이 균일하게 되어서 용접 품질 및 실링 특성을 향상시킬 수 있다.Effect: The deformation of the cap plate, which occurs when the electrode rivets are engaged, removes the recesses and causes both sides to be flat. Therefore, the gap between the cap plate and the can becomes uniform, thereby improving welding quality and sealing properties.
Description
본 발명은 전극 리벳의 결합력에 의해 캡 플레이트가 변형되는 것을 고려하여, 그 캡 플레이트와 캔의 실링 특성을 향상시킬 수 있도록 한 이차전지의 캡 어셈블리 및 그 제조방법에 관한 것이다.The present invention relates to a cap assembly of a secondary battery and a method of manufacturing the same, in order to improve the sealing characteristics of the cap plate and the can in consideration of the deformation of the cap plate by the bonding force of the electrode rivets.
이차전지는 재충전이 가능하고 소형 및 대용량화가 가능한 것으로, 대표적으로는 니켈수소(Ni-MH)전지, 리튬(Li)전지 및 리튬이온(Li-ion)전지가 있으며, 외관상으로는 원통형과 각형 전지로 구분되고 있다.Rechargeable batteries can be recharged, miniaturized and large-capacity. Representative examples include nickel-hydrogen (Ni-MH) batteries, lithium (Li) batteries, and lithium-ion (Li-ion) batteries. It is divided into.
도 4는 종래 공지된 각형 전지의 일 예를 보여주고 있다. 도면에서와 같이 각형 이차전지는 정극과 부극의 사이에 세퍼레이터를 개재하여 함께 권취하므로 전극군(2)을 형성하고, 그 전극군(2)을 캔(4)의 내부에 삽입하며, 그 캔(4)의 상측 개구에 캡 어셈블리(6)를 설치하고, 상기 캔(4)의 내부에 전해액을 주입한 후 밀봉하여 이루어진다.4 shows an example of a conventionally known square battery. As shown in the drawing, the rectangular secondary battery is wound together through a separator between the positive electrode and the negative electrode to form an electrode group 2, and the electrode group 2 is inserted into the can 4, and the can ( The cap assembly 6 is installed in the upper opening of 4), the electrolyte is injected into the can 4 and then sealed.
캡 어셈블리(6)는 캔(4)의 개구에 용접 결합되는 캡 플레이트(8)를 포함하며, 그 캡 플레이트(8)에 관통 구멍을 형성하고 절연판(10)과 가스켓(12)을 개재하여 절연된 전극 리벳(14)을 체결한 것이며, 가스켓(12)의 하부에 전극 리벳(14)과 접속된 전극 연결판(16)을 더 설치하여 연결할 수 있다.The cap assembly 6 includes a cap plate 8 welded to the opening of the can 4, forming through holes in the cap plate 8 and insulated through the insulating plate 10 and the gasket 12. The electrode rivet 14 is fastened, and an electrode connecting plate 16 connected to the electrode rivet 14 may be further installed at the lower portion of the gasket 12.
캡 플레이트(8)에는 주입구(18)를 형성하여 전해액 주입 후 플러그를 이용하여 밀봉되게 하고, 전지 내압 상승 및 폭발에 대한 안전대책으로 안전수단(20)을 구비한다. 또 전극 연결판(16)은 상기 전극군(2) 중에서 정극에서 인출된 전극 탭(22)과 연결하고, 전극군(2)의 부극은 도시 생략한 전극 탭을 이용하여 혹은 캔(4)과 직접 접속함에 의해 외부 연결되어진다.The cap plate 8 is provided with an injection hole 18 to be sealed by using a plug after the injection of the electrolyte, and is provided with a safety means 20 as a safety measure against an increase in the internal pressure of the battery and an explosion. In addition, the electrode connecting plate 16 is connected to the electrode tab 22 drawn from the positive electrode in the electrode group 2, and the negative electrode of the electrode group 2 is connected to the can 4 by using an electrode tab (not shown). It is connected externally by direct connection.
이러한 종래의 이차전지에서 캔(4)과 캡 플레이트(8)로 된 케이스는 주로 금속 재질을 사용하여 제작되고 있으나, 전지의 경량화 및 소형화 추세에 맞추어 알루미늄 혹은 알루미늄 합금을 사용하는 추세로 변화되고 있다.In the conventional secondary battery, the case of the can 4 and the cap plate 8 is mainly manufactured using a metal material, but is changing to the trend of using aluminum or an aluminum alloy in accordance with the trend of light weight and miniaturization of the battery. .
그러나 알루미늄 혹은 알루미늄 합금을 케이스로 사용하는 이차전지의 경우에는 특히 캡 어셈블리(6)의 조립시 전극 리벳(14)에 의해 체결되는 캡 플레이트(8)가 연성 재질상의 특성으로 인해, 도 5와 같이 리벳 중심을 기준으로 그 주변 쪽으로 밀려져 넓혀지는 형태로 쉽게 변형되는 문제점이 있으며, 그 결과로 캡 플레이트(8)와 캔(4)의 용접시 양 부품 사이의 간격이 불균일하게 되어 용접 품질 및 실링 특성이 불량하게 되므로 전해액의 누출이 발생하는 심각한 문제점을 초래하게 된다.However, in the case of a secondary battery using aluminum or an aluminum alloy as a case, the cap plate 8 fastened by the electrode rivets 14 is particularly flexible when the cap assembly 6 is assembled, as shown in FIG. 5. There is a problem that it is easily deformed in the form of being pushed toward the periphery of the rivet center so as to be widened. As a result, the gap between the two parts becomes uneven when welding the cap plate 8 and the can 4, resulting in welding quality and sealing. Since the properties are poor, it causes a serious problem of leakage of the electrolyte.
앞서 설명한 종래 기술의 문제점을 해결하기 위한 것으로서, 본 발명은 전극 리벳의 결합력에 의한 변형을 캡 플레이트에 반영하여 제조하므로, 캡 플레이트와 캔의 사이 간격을 균일하게 하고, 그 결과로 용접 품질 및 실링 특성을 향상시킨 이차전지의 캡 어셈블리 및 그 제조방법을 제공함에 목적을 두고 있다.In order to solve the problems of the prior art described above, the present invention is manufactured by reflecting the deformation due to the coupling force of the electrode rivets on the cap plate, thereby making the gap between the cap plate and the can uniform, resulting in weld quality and sealing An object of the present invention is to provide a cap assembly of a secondary battery having improved characteristics and a method of manufacturing the same.
이를 위하여 본 발명에서는 캔의 개구에 용접될 캡 플레이트를 알루미늄이나 알루미늄 합금으로 제조함에 있어, 상기 캡 플레이트에 관통 구멍을 형성하고, 그 구멍에서 최근 거리에 위치한 측변을 오목하게 절취 형성하여 양측변 사이의 폭이 다른 곳에 비해 축소 형성되게 하며, 상기 구멍의 내주 및 주변에 절연수단을 개재하여 전극 리벳을 삽입하고 체결하여 조립함을 특징으로 한다.To this end, in the present invention, in manufacturing the cap plate to be welded to the opening of the can of aluminum or aluminum alloy, through holes are formed in the cap plate, and the side edges positioned at the most recent distance from the holes are concavely cut out to form a gap between both sides. The width of the shrinkage is to be formed compared to the other place, characterized in that the assembly by inserting and fastening the electrode rivet through the insulating means on the inner circumference and the periphery of the hole.
상기 전극 리벳은 캡 플레이트와, 절연판과 가스켓을 포함하는 절연수단과, 전극 연결판을 체결하여 고정하는 것이며, 캔의 내부에 삽입된 정극 혹은 부극에서 인출된 전극 탭과 전기적으로 연결되어진다.The electrode rivet fastens and fixes the cap plate, the insulating means including the insulating plate and the gasket, and the electrode connecting plate, and is electrically connected to the electrode tab drawn from the positive electrode or the negative electrode inserted into the can.
이와 같이 구성된 본 발명의 캡 어셈블리는 캔의 개구에 삽입되어서 레이저 용접에 의해 설치되어진다. The cap assembly of the present invention thus constructed is inserted into the opening of the can and installed by laser welding.
이하, 본 발명의 바람직한 실시 예를 첨부 도면에 의거하여 보다 상세하게 설명하기로 한다. 참고로 본 발명을 설명함에 있어 종래 기술에서 설명한 구성과 동일한 부분에 대하여는 동일 부호를 부여하였다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, in describing the present invention, the same reference numerals are given to the same parts as those described in the prior art.
도 1은 본 발명에 의한 이차전지의 캡 어셈블리를 분리 도시한 것이고, 도 2는 본 발명의 조립 상태를 보여주고 있다.1 is a view illustrating a detached cap assembly of a secondary battery according to the present invention, and FIG. 2 illustrates an assembled state of the present invention.
도면을 통하여 알 수 있는 바와 같이 본 발명은 캡 어셈블리(60)를 조립함에 있어, 캔(4)의 개구에 용접되는 캡 플레이트(80)를 연성의 알루미늄이나 알루미늄 합금으로 제조할 경우에, 전극 리벳(14)의 clasp and seal 공정으로 인한 결합력으로 캡 플레이트(80)가 변형되어서 상기 전극 리벳(14)의 관통 구멍(82)을 중심으로 그 주변 방향으로 밀려져 넓혀지는 변형을 보상할 수 있도록 한다.As can be seen from the drawings, in the assembly of the cap assembly 60, when the cap plate 80 welded to the opening of the can 4 is made of ductile aluminum or aluminum alloy, the electrode rivets The cap plate 80 is deformed by the coupling force due to the clasp and seal process of (14) to compensate for the deformation that is pushed in the peripheral direction about the through hole 82 of the electrode rivet 14 to be widened. .
이를 위하여 본 발명에서는 캡 플레이트(80)를 제조함에 있어 전극 리벳(14)에 의한 연신량 및 그 방향을 고려하여, 관통 구멍(82)에서 최근 거리에 위치한 측변을 절취하여 양측변 사이의 폭이 다른 곳에 비해 축소 형성되게 한 오목부(84)를 형성한다. 오목부(84)는 전극 리벳(14)의 결합력이 작용하는 영역과, 그 영역에 해당하는 캡 플레이트(80)의 두께 및 결합력 등의 변수에 의해 크기가 정해질 수 있지만, 본 발명의 범위가 여기에 한정되는 것은 아니다.To this end, in the present invention, in manufacturing the cap plate 80, in consideration of the amount of elongation by the electrode rivets 14 and the direction thereof, the width between the two side edges is cut by cutting the side edge positioned at a recent distance from the through hole 82. The concave portion 84 is formed to be reduced in size compared to other places. The recessed portion 84 may be sized by variables such as the region where the bonding force of the electrode rivet 14 acts and the thickness and the bonding force of the cap plate 80 corresponding to the region, but the scope of the present invention It is not limited to this.
이러한 본 발명의 캡 플레이트(80)는 알루미늄이나 알루미늄 합금 재질을 사용하여 metal rolling이나 die-casting 방법에 의해, 상기 관통 구멍(82)과 오목부(84)를 갖도록 제조되어진다.The cap plate 80 of the present invention is manufactured to have the through hole 82 and the recess 84 by metal rolling or die-casting method using aluminum or aluminum alloy.
이렇게 제조된 캡 플레이트(80)는 관통 구멍(82)의 내주와 주변의 표면에 절연판(10)과 가스켓(12)을 개재하고, 가스켓(12)의 하부에 전극 연결판(16)을 개재한 후에, 전극 리벳(14)을 삽입하고 clasp and seal 공정으로 결합함에 본 발명의 캡 어셈블리(60)을 구성하게 된다.The cap plate 80 manufactured as described above is interposed between the insulating plate 10 and the gasket 12 on the inner circumference and periphery of the through hole 82, and the electrode connecting plate 16 under the gasket 12. Afterwards, the cap assembly 60 of the present invention is constructed by inserting the electrode rivets 14 and joining them by the clasp and seal process.
이때 본 발명의 캡 플레이트(80)는 전극 리벳(14)에 의해 가압되는 영역이 압착되면서 그 주변으로 변형되므로, 도 3과 같이 수평방향으로 밀려져 양측변의 연장선과 편평한 상태로 맞춰지게 된다. 따라서 본 발명에 의한 캡 플레이트(80)는 4 변의 형상이 정확하게 직사각형을 이루게 되며, 캔과의 사이 간격이 전체적으로 균일한 상태로 되어 캔의 개구 내주에 긴밀하게 삽입되므로, 레이저 용접 품질을 향상시키고 아울러 실링 특성을 향상시키게 된다.At this time, since the cap plate 80 of the present invention is deformed to the periphery while the area pressed by the electrode rivet 14 is compressed, the cap plate 80 is pushed in a horizontal direction as shown in FIG. Therefore, the cap plate 80 according to the present invention has a four-sided shape to form an exact rectangle, and the space between the cans is made to be generally uniform, so that the cap plate 80 is tightly inserted into the inner circumference of the can, thereby improving the laser welding quality. It will improve the sealing characteristics.
한편 캡 어셈블리(60)의 전극 연결판(16)은 캔(4)과 캡 플레이트(80)의 용접 공정 전에, 캔(4)의 내부에 수납된 정극 혹은 부극 중에서 하나로부터 인출된 전극, 예를 들어 정극 탭(22)과 전기적으로 연결되므로 전극 리벳(14)을 통해 외부로 연결되어진다.On the other hand, the electrode connecting plate 16 of the cap assembly 60 is an electrode drawn from one of the positive or negative electrodes housed inside the can 4 before the welding process of the can 4 and the cap plate 80. For example, since it is electrically connected to the positive electrode tab 22, it is connected to the outside through the electrode rivet 14.
또한 캔(4)과 캡 플레이트(80)가 용접된 후 상기 캔(4)의 내부에는 전해액이 주입된 후 밀봉됨으로써 본 발명의 이차전지를 실현할 수 있다.In addition, after the can 4 and the cap plate 80 are welded, the secondary battery of the present invention can be realized by sealing after the electrolyte is injected into the can 4.
물론 상기 전극군(2) 중에서 다른 전극, 예를 들어 부극은 도시 생략한 단자 탭을 이용하여 혹은 캔(4)과 직접 접속되어진다.Of course, the other electrode of the said electrode group 2, for example, a negative electrode, is directly connected with the can 4 using the terminal tab which is not shown in figure.
이상에서 설명한 구성 및 작용을 통하여 알 수 있는 바와 같이, 본 발명의 이차전지의 캡 어셈블리 및 그 제조방법은 전극 리벳의 압력에 의한 변형량을 캡 플레이트에 반영하여 미리 설계 및 형성함으로써, 캡 플레이트와 캔 사이의 간격을 균일하게 형성하고, 그 결과로 양 부품의 용접 품질 및 실링 특성을 향상시키는 효과를 얻을 수 있다.As can be seen through the configuration and operation described above, the cap assembly and the manufacturing method of the secondary battery of the present invention by designing and forming in advance by reflecting the deformation amount due to the pressure of the electrode rivet to the cap plate, the cap plate and can The gap between them is formed uniformly, and as a result, the effect of improving the welding quality and sealing properties of both parts can be obtained.
따라서 본 발명에 의하면 제조 공정에서 용접 불량 및 실링 불량을 제거하게 되므로 제품의 생산성을 향상시키는 효과도 아울러 얻을 수 있다.Therefore, according to the present invention, since welding defects and sealing defects are eliminated in the manufacturing process, the effect of improving the productivity of the product can also be obtained.
도 1은 본 발명에 의한 이차전지의 캡 어셈블리를 분리 도시한 사시도.1 is a perspective view showing the separation of the cap assembly of the secondary battery according to the present invention.
도 2는 본 발명의 조립 단면도.2 is an assembled cross-sectional view of the present invention.
도 3은 본 발명의 평면 구성도.3 is a plan view of the present invention.
도 4는 종래 공지된 이차전지를 도시한 단면도.4 is a cross-sectional view showing a conventionally known secondary battery.
도 5는 종래 이차전지의 평면 구성도.5 is a plan view of a conventional secondary battery.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
4-캔 10-절연판4-can 10-insulation plate
12-가스켓 14-전극 리벳12-gasket 14-electrode rivet
16-전극 연결판 22-전극 탭16-electrode connector 22-electrode tab
60-캡 어셈블리 80-캡 플레이트60-cap assembly 80-cap plate
82-관통 구멍 84-오목부82-through hole 84-recess
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1999-0026474A KR100537602B1 (en) | 1999-07-02 | 1999-07-02 | Cap assembly used in Secondary battery and method for making the same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-1999-0026474A KR100537602B1 (en) | 1999-07-02 | 1999-07-02 | Cap assembly used in Secondary battery and method for making the same |
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| Publication Number | Publication Date |
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| KR20010008566A KR20010008566A (en) | 2001-02-05 |
| KR100537602B1 true KR100537602B1 (en) | 2005-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR10-1999-0026474A KR100537602B1 (en) | 1999-07-02 | 1999-07-02 | Cap assembly used in Secondary battery and method for making the same |
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| KR (1) | KR100537602B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101242134B1 (en) | 2007-09-10 | 2013-03-12 | 삼성에스디아이 주식회사 | Cap assembly and secondary battery using the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100658680B1 (en) * | 2005-04-08 | 2006-12-15 | 삼성에스디아이 주식회사 | Secondary Battery and Manufacturing Method Thereof |
| KR100686797B1 (en) * | 2005-07-07 | 2007-02-26 | 삼성에스디아이 주식회사 | Manufacturing method of secondary battery |
| CN102763238B (en) * | 2010-02-17 | 2016-03-09 | 株式会社东芝 | Battery And Its Manufacturing Methods |
| KR101666870B1 (en) | 2012-03-20 | 2016-10-17 | 삼성에스디아이 주식회사 | Rechargeable battery including resistance member |
| KR102251330B1 (en) * | 2014-11-19 | 2021-05-13 | 삼성에스디아이 주식회사 | Secondary Battery |
| KR102423894B1 (en) | 2015-05-19 | 2022-07-20 | 삼성에스디아이 주식회사 | Rechargeable battery |
| KR102629054B1 (en) * | 2016-06-28 | 2024-01-23 | 삼성에스디아이 주식회사 | Rechargeable battery |
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| JPH07312209A (en) * | 1994-05-18 | 1995-11-28 | Yuasa Corp | Sealed battery |
| JPH08329910A (en) * | 1995-05-30 | 1996-12-13 | Sanyo Electric Co Ltd | Square battery |
| JPH097557A (en) * | 1995-06-16 | 1997-01-10 | Furukawa Battery Co Ltd:The | Manufacture of angular sealed battery |
| JPH09306444A (en) * | 1996-05-13 | 1997-11-28 | Seiko Instr Inc | Sealed battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07312209A (en) * | 1994-05-18 | 1995-11-28 | Yuasa Corp | Sealed battery |
| JPH08329910A (en) * | 1995-05-30 | 1996-12-13 | Sanyo Electric Co Ltd | Square battery |
| JPH097557A (en) * | 1995-06-16 | 1997-01-10 | Furukawa Battery Co Ltd:The | Manufacture of angular sealed battery |
| JPH09306444A (en) * | 1996-05-13 | 1997-11-28 | Seiko Instr Inc | Sealed battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101242134B1 (en) | 2007-09-10 | 2013-03-12 | 삼성에스디아이 주식회사 | Cap assembly and secondary battery using the same |
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| KR20010008566A (en) | 2001-02-05 |
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