KR100314495B1 - Sealing Structure of Capacitor - Google Patents
Sealing Structure of Capacitor Download PDFInfo
- Publication number
- KR100314495B1 KR100314495B1 KR1019990019313A KR19990019313A KR100314495B1 KR 100314495 B1 KR100314495 B1 KR 100314495B1 KR 1019990019313 A KR1019990019313 A KR 1019990019313A KR 19990019313 A KR19990019313 A KR 19990019313A KR 100314495 B1 KR100314495 B1 KR 100314495B1
- Authority
- KR
- South Korea
- Prior art keywords
- cover
- ring
- vent
- outer circumference
- polyethylene
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title claims 2
- 239000003990 capacitor Substances 0.000 title 1
- 239000004698 Polyethylene Substances 0.000 claims abstract description 23
- -1 polyethylene Polymers 0.000 claims abstract description 23
- 229920000573 polyethylene Polymers 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010998 test 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
- 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
- H01M10/058—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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- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
본 발명은 원통형 전지에 관한 것으로, 특히 원통형 전지의 기밀이나 수밀을 방지 유지하고, 내누액성을 향상시키기 위하여 원통형 전지의 케이스내에 와인딩 된 소자가 삽입되고, 상기 소자의 상단에 내장링이 형성되며, 상기 내장링의 상부에 안전벤트가 형성되며, 상기 안전벤트의 상부에 폴리에틸렌 커버가 형성되고, 상기 폴리에틸렌 커버위에 탑갭이 씌워지며, 상기 탑갭의 외주, 상기 폴리에틸렌 커버의 외주, 상기 링플레이트 외주와 케이스 사이에 가스켓이 삽입된 구조에 있어서, 상기 링플레이트와 내장링 사이에 벤트 커버가 삽입 형성되고, 상기 링플레이트와 벤트 커버 사이에 알루미늄 포일과 벤트커버 내장링이 형성되며, 상기 벤트커버의 단부는 상측으로 절곡되어 상기 링플레이트 단부, 알루미늄 포일 단부, 벤트 커버 내장링 단부의 외주를 감싸면서 형성된 것을 특징으로 하는 원통형 전지의 구조를 제공한다.The present invention relates to a cylindrical battery, in particular, in order to prevent the airtightness and watertightness of the cylindrical battery, and to improve leakage resistance, a device wound in the cylindrical battery is inserted, and a built-in ring is formed on the top of the device. A safety vent is formed on an upper portion of the inner ring, a polyethylene cover is formed on an upper portion of the safety vent, a top gap is covered on the polyethylene cover, an outer circumference of the top gap, an outer circumference of the polyethylene cover, and an outer circumference of the ring plate. In the structure in which the gasket is inserted between the case, the vent cover is inserted between the ring plate and the inner ring, the aluminum foil and the vent cover inner ring is formed between the ring plate and the vent cover, the end of the vent cover Is bent upwards and the ring plate end, the aluminum foil end, and the vent cover To surround the primary and provides a structure of a cylindrical battery, characterized in that formed.
Description
본 발명은 원통형 전지에 관한 것으로, 특히 원통형 전지내의 기밀이나 수밀을 유지하기 위한 원통형 전지의 밀폐구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical battery, and more particularly to a sealed structure of a cylindrical battery for maintaining airtightness or watertightness in a cylindrical battery.
전지는 대기 상태에 방치해 두면 전해액의 증발 또는 흡습 등에 의해 특성이 열화되므로 케이스에 넣어 밀봉할 필요가 있다.If the battery is left in the atmospheric state, its characteristics deteriorate due to evaporation or moisture absorption of the electrolyte, and thus the battery needs to be sealed in a case.
기존에는 도 1에 도시된 바와 같이 원통형 케이스 내부에 와인딩 소자를 넣고 그 위에 내장링을 형성한다. 금속케이스의 상부에는 원주를 따라 홈이 형성되어 있는데, 이 홈이 깊이만큼 내부로 돌출되어 턱이 형성되어 있다.Conventionally, as shown in FIG. 1, a winding element is inserted into a cylindrical case and a built-in ring is formed thereon. Grooves are formed along the circumference of the upper part of the metal case, and the grooves protrude inward by a depth to form a jaw.
내장링 위에는 벤트 및 폴리에틸렌 커버가 형성되고, 그 위에는 탑캡이 형성된다. 상기한 탑캡과 폴리에틸렌 커버의 외주를 감싸는 가스켓이 형성되고, 이 가스켓의 외측면은 원형케이스와 밀착하여 삽입 형성된다.A vent and polyethylene cover are formed on the inner ring, and a top cap is formed thereon. A gasket surrounding the outer circumference of the top cap and the polyethylene cover is formed, and the outer surface of the gasket is inserted into and in close contact with the circular case.
상기한 커버는 폴리 에틸렌으로 코팅되고 열에 의해 압착된 후, 디스크 링이 삽입되어 구성되어 있어, 전지내의 내압 발생시에 알루미늄 포일에 코팅된 폴리에틸렌과 금속의 접착성에 의해 전지의 기밀성이 유지되도록 한다.After the cover is coated with polyethylene and thermally compressed, the disk ring is inserted, so that the airtightness of the battery is maintained by the adhesion of polyethylene and metal coated on the aluminum foil when internal pressure is generated in the battery.
상기한 바와 같이 폴리에틸렌으로 코팅된 알루미늄 포일을 금속 커버에 접착 시킬 경우 주위 환경의 변화, 시간의 경과에 따른 폴리에틸렌의 물성 변화, 금속 커버의 표면의 산화로 인한 열 접착에 대한 요소들의 변화로 인해 접착에 대하여 신뢰하기가 어렵고, 접착 검사방법의 난해함으로 제품간의 내누액성에 대한 편차가 발생한다.When the polyethylene-coated aluminum foil is bonded to the metal cover as described above, the adhesion is changed due to the change of the environmental environment, the change of the physical properties of the polyethylene over time, the change of the factors for thermal adhesion due to the oxidation of the surface of the metal cover. It is difficult to trust the product, and the difficulty of adhesion test method causes deviations in leakage resistance between products.
특히 폴리에틸렌의 물리적인 특성에 접착의 열화 현상으로 장기간 보관시 누액의 발생 빈도가 크다.In particular, due to the deterioration of adhesion to the physical properties of polyethylene, leakage occurs frequently during long-term storage.
본 고안은 전술한 바와 같이 신뢰하기 어려운 내누액성을 향상시키기 위한 것이다.The present invention is to improve the leakage resistance that is difficult to trust as described above.
상기의 목적을 달성하기 위하여 금속 케이스내에 와인딩 소자가 삽입되고,상기 와인딩 소자의 상단에 내장링이 형성되며, 상기 내장링의 상부에 안전벤트가 형성되고, 상기 안전벤트의 상부에 폴리에틸렌 커버가 형성되며, 상기 폴리에틸렌 커버위에 탑갭이 씌워지며, 상기 안전벤트의 외주, 탑갭의 외주, 폴리에틸렌 커버의 외주, 링플레이트 외주와 금속 케이스 사이에 가스켓이 삽입되고, 상기한 안전벤트는 상부에 링플레이트가 형성되고, 상기 링플레이트 하부에 알루미늄 포일이 형성되며, 상기 알루미늄 포일의 하부에 벤트커버 내장링이 형성되고, 상기 링플레이트의 외주, 알루미늄 포일의 외주, 벤트커버 내장링의 외주를 감싸면서 안전벤트 커버가 형성된 것을 특징으로 하는 원통형 전지의 밀폐구조를 제공한다.In order to achieve the above object, a winding element is inserted into a metal case, and a built-in ring is formed at an upper end of the winding element, a safety vent is formed on the upper part of the built-in ring, and a polyethylene cover is formed on the safety vent. A top gap is covered on the polyethylene cover, and a gasket is inserted between the outer circumference of the safety vent, the outer circumference of the top gap, the outer circumference of the polyethylene cover, the ring plate outer circumference, and the metal case, and the safety vent has a ring plate formed thereon. The aluminum foil is formed on the lower portion of the ring plate, and a vent cover built-in ring is formed on the lower portion of the aluminum foil, and the safety vent cover is wrapped around the outer circumference of the ring plate, the outer circumference of the aluminum foil, and the outer circumference of the vent cover built-in ring. Provides a sealed structure of a cylindrical battery, characterized in that formed.
도 1은 전지 케이이스의 구성을 나타내는 일부 단면도.1 is a partial cross-sectional view showing a configuration of a battery case.
도 2는 본 고안에 의한 전지케이스의 안전 벤트의 구성을 나타내는 상세확대도.Figure 2 is an enlarged detail showing the configuration of the safety vent of the battery case according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
12 : 금속 케이스 14 : 와인딩 소자12 metal case 14 winding element
16 : 내장링 18 : 안전벤트16: built-in ring 18: safety vent
19 : 안전벤트 커버 20 : 링플레이트19: safety vent cover 20: ring plate
22 : 폴리에틸렌 커버 24 : 알루미늄 포일22: polyethylene cover 24: aluminum foil
26 : 벤트 커버 내장링 28 : 탑캡26: vent cover built-in ring 28: top cap
30 : 가스켓 32 : 크림핑30: gasket 32: crimping
첨부된 도면을 참조하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 전지케이스의 구성을 나타내는 일부단면도이다.1 is a partial cross-sectional view showing the configuration of a battery case.
도 1에 도시된 바와 같이, 원통형의 금속 케이스(12)가 형성되고, 금속 케이스내에 와인딩 소자(14)를 삽입 형성한다. 와인딩 소자(14)의 상단과 접하는 곳의 금속 케이스(12)는 원주를 따라 크림핑(32)을 형성하고, 크림핑(32)과 와인딩 소자(14) 사이에는 내장링(16)을 삽입한다.As shown in FIG. 1, a cylindrical metal case 12 is formed, and the winding element 14 is inserted into the metal case. The metal case 12 in contact with the upper end of the winding element 14 forms a crimp 32 along the circumference and inserts a built-in ring 16 between the crimp 32 and the winding element 14. .
내장링(16)의 상부에는 안전벤트(18)가 형성되고, 안전벤트(18)의 상부에는 폴리에틸렌 커버(22)가 형성되며, 폴리에틸렌 커버(22)의 상부에는 최종적으로 탑캡(28)이 형성된다.The safety vent 18 is formed on the upper part of the inner ring 16, the polyethylene cover 22 is formed on the upper part of the safety vent 18, and the top cap 28 is finally formed on the upper part of the polyethylene cover 22. do.
도 2는 본 고안에 의한 전지 케이스의 안전 벤트의 구성을 나타내는 상세 확대도로서, 안전 벤트(18)의 구성을 상세히 나타낸다. 도면에 도시되어 있는 바와 같이, 안전벤트(18)는 안전벤트 커버(19), 링플레이트(20), 알루미늄 포일(24), 벤트커버 내장링(26)으로 이루어져 있고, 각각의 구성관계는 다음과 같다.2 is a detailed enlarged view showing the configuration of the safety vent of the battery case according to the present invention, and shows the configuration of the safety vent 18 in detail. As shown in the figure, the safety vent 18 is composed of a safety vent cover 19, a ring plate 20, an aluminum foil 24, a vent cover built-in ring 26, each configuration relationship is as follows Same as
링플레이트(20)의 하부에 알루미늄 포일(24)이 형성되고, 상기 알루미늄 포일(24)의 하부에 벤트커버 내장링(26)이 형성되며, 벤트커버 내장링(26)의 하부에는 안전벤트 커버(19)가 형성되는데, 상기한 안전벤트 커버(19)는 상측으로 절곡되어 상기의 링플레이트(20), 알루미늄 포일(24), 벤트커버 내장링(26)의 외주를 감싼 구조로 이루어진다.An aluminum foil 24 is formed below the ring plate 20, a vent cover built-in ring 26 is formed under the aluminum foil 24, and a safety vent cover is provided under the vent cover built-in ring 26. (19) is formed, the safety vent cover 19 is bent upward to have a structure surrounding the outer circumference of the ring plate 20, aluminum foil 24, vent cover built-in ring (26).
상기한 바와 같이 폴리에틸렌 커버(22) 위에는 탑캡(28)이 최종적으로 형성되어 있고, 탑캡(28), 폴리에틸렌 커버(22), 안전벤트 커버(19)의 외주와 금속 케이스(12) 사이에 가스켓(30)을 삽입한다.As described above, the top cap 28 is finally formed on the polyethylene cover 22, and a gasket () is formed between the outer circumference of the top cap 28, the polyethylene cover 22, and the safety vent cover 19, and the metal case 12. Insert 30).
전술한 바와 같은 본 발명의 효과는 기존의 접착에 의한 내누액성의 경우 접착에 대하여 신뢰하기가 어렵고 각 제품마다 접착의 정도를 측정하기 난해했으나 본 발명은 벤트내에 폴리에틸렌을 삽입하여 폴리에틸렌에 가중된 압력에 의하여 누액의 경로를 차단함으로서 내누액성을 향상한다.As described above, the effects of the present invention are difficult to reliably measure the adhesion in the case of leakage resistance due to the conventional adhesion, and it is difficult to measure the degree of adhesion for each product. The leakage resistance is improved by blocking the path of leakage.
즉, 내누액성의 경로를 폴리에틸렌의 압축에 의하여 차단함으로서 전지 내의 압력 증가시 누액의 빈도수가 적고, 90℃ 이상 고온 저장시에 기존의 알루미늄 박판에 코팅된 폴리에틸렌 연화로 인한 누액의 발생을 방지되며, 누액의 경로 및 알루미늄 박판에 열이 직접 전달되지 않아 고온에서의 기밀성이 유지되고, 특히 전지의 단락이나 고온에서의 보관 사용시에도 내누액성을 갖는 효과가 있다.That is, by blocking the leakage resistance path by the compression of polyethylene, the frequency of leakage is small when the pressure in the battery increases, and the leakage of liquid due to the softening of the polyethylene coated on the existing aluminum sheet is prevented when the battery is stored at a high temperature over 90 ° C. Since heat is not directly transmitted to the path and the thin aluminum sheet, airtightness at high temperature is maintained, and in particular, there is an effect of having leakage resistance even when the battery is shorted or stored at high temperature.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990019313A KR100314495B1 (en) | 1999-05-27 | 1999-05-27 | Sealing Structure of Capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990019313A KR100314495B1 (en) | 1999-05-27 | 1999-05-27 | Sealing Structure of Capacitor |
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| Publication Number | Publication Date |
|---|---|
| KR20000075016A KR20000075016A (en) | 2000-12-15 |
| KR100314495B1 true KR100314495B1 (en) | 2001-11-15 |
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| KR1019990019313A KR100314495B1 (en) | 1999-05-27 | 1999-05-27 | Sealing Structure of Capacitor |
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|---|---|---|---|---|
| KR960015657U (en) * | 1994-10-01 | 1996-05-17 | Safety vent structure of cylindrical lithium battery | |
| JPH09320562A (en) * | 1996-03-28 | 1997-12-12 | Shin Kobe Electric Mach Co Ltd | Sealed cylindrical nonaqueous secondary battery |
| KR19980045826A (en) * | 1996-12-11 | 1998-09-15 | 김영귀 | Overhead Camshaft Rocker Arms |
| US5821008A (en) * | 1996-02-16 | 1998-10-13 | Fdk Corporation | Battery provided with explosion-proof components |
| KR19980075100A (en) * | 1997-03-28 | 1998-11-05 | 배순훈 | Aluminum sheet crimping device for lithium battery |
-
1999
- 1999-05-27 KR KR1019990019313A patent/KR100314495B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960015657U (en) * | 1994-10-01 | 1996-05-17 | Safety vent structure of cylindrical lithium battery | |
| US5821008A (en) * | 1996-02-16 | 1998-10-13 | Fdk Corporation | Battery provided with explosion-proof components |
| JPH09320562A (en) * | 1996-03-28 | 1997-12-12 | Shin Kobe Electric Mach Co Ltd | Sealed cylindrical nonaqueous secondary battery |
| KR19980045826A (en) * | 1996-12-11 | 1998-09-15 | 김영귀 | Overhead Camshaft Rocker Arms |
| KR19980075100A (en) * | 1997-03-28 | 1998-11-05 | 배순훈 | Aluminum sheet crimping device for lithium battery |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000075016A (en) | 2000-12-15 |
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