KR100307454B1 - Method for making secondary battery - Google Patents
Method for making secondary battery Download PDFInfo
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- KR100307454B1 KR100307454B1 KR1019990009598A KR19990009598A KR100307454B1 KR 100307454 B1 KR100307454 B1 KR 100307454B1 KR 1019990009598 A KR1019990009598 A KR 1019990009598A KR 19990009598 A KR19990009598 A KR 19990009598A KR 100307454 B1 KR100307454 B1 KR 100307454B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- cap assembly
- secondary battery
- electrode plate
- injected
- Prior art date
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- 238000000034 method Methods 0.000 title abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 4
- 239000012212 insulator Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 24
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 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
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000003507 refrigerant Substances 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
- H01M50/10—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
-
- 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
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Secondary Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
목적 : 전해액 주입을 용이하고 빠르게 하며 구성 부품의 수를 줄여 단순화할 수 있도록 하는 이차전지의 제조방법을 제공한다.PURPOSE: To provide a method for manufacturing a secondary battery that facilitates electrolyte injection, speeds up, and reduces the number of components.
구성 : 캔(6)의 내부에 전극부와 함께 전해액을 주입하되 이것을 냉각 지그(22a)(22b)에 설치하고, 그 캔의 상측 단부에 캡 어셈블리(80)를 배치하여서 레이저 용접기(24)에 의해 용접 밀봉한다. 냉각 지그는 전해액의 열분해를 방지하기 위해 적어도 -20℃ 이하로 냉각하여 그 상태를 유지한다.Composition: An electrolyte is injected into the can 6 together with an electrode portion, and the electrolyte is injected into the cooling jig 22a and 22b, and the cap assembly 80 is disposed at the upper end of the can to the laser welder 24. Seals by welding. The cooling jig is cooled to at least −20 ° C. or lower and maintained in order to prevent thermal decomposition of the electrolyte solution.
효과 : 별도의 전해액 주입 공정이 제거되며, 용이하고 빠르게 전해액을 주입할 수 있다. 또 캡 어셈블리에서 전해액 주입구를 제거하므로 부품 수의 감소와 단순화를 실현할 수 있다.Effect: The separate electrolyte injection process is eliminated and the electrolyte can be injected easily and quickly. In addition, the electrolyte injection port is removed from the cap assembly, thereby reducing and simplifying the number of parts.
Description
본 발명은 전해액 주입을 편리하게 하고 주입구를 제거하여 구성 부품의 수를 줄일 수 있도록 한 이차전지의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a secondary battery that facilitates electrolyte injection and removes the injection port to reduce the number of components.
이차전지는 재충전이 가능하고 소형 및 대용량화가 가능한 것으로, 대표적으로는 니켈수소(Ni-MH)전지와 리튬(Li)전지 및 리튬이온(Li-ion)전지가 사용되고 있으며, 외관상으로는 원통형과 각형 전지로 구분되고 있다.Rechargeable batteries can be recharged, miniaturized and large-capacity. Representatively, nickel-hydrogen (Ni-MH) batteries, lithium (Li) batteries, and lithium-ion (Li-ion) batteries are used. It is divided into battery.
도 2은 각형 전지의 일반적인 구조를 나타내고 있다. 도면에서와 같이 정극과 세퍼레이터 및 부극이 함께 롤 상으로 권취되고 압착된 전극부(2)는 상·하부에 절연판(4a)(4b)을 개재하여 캔(6) 내부로 수납되고, 그 캔(6)의 상부에는 안전장치를 포함하는 캡 어셈블리(8)를 설치한다.2 shows a general structure of a square battery. As shown in the drawing, the electrode part 2 in which the positive electrode, the separator, and the negative electrode are wound and pressed together in a roll shape is accommodated in the can 6 through the insulating plates 4a and 4b at the upper and lower parts thereof, and the can ( In the upper part of 6) is installed a cap assembly (8) including a safety device.
캡 어셈블리(8)는 각형 캔(6)의 상부에 설치되는 부극 플레이트(12)와 그 중심에 배치되는 정극 플레이트(14)의 사이에 절연체(16) 및 가스켓(18)을 개재하고, 부극 플레이트와 정극 플레이트의 중심을 관통하는 리벳(20)을 이용하여 어셈블리된다.The cap assembly 8 is interposed between the negative electrode plate 12 provided on the upper portion of the square can 6 and the positive electrode plate 14 disposed at the center thereof, and includes a negative electrode plate and a gasket 18. And the rivet 20 penetrating the center of the positive electrode plate.
이러한 캡 어셈블리(8)는 캔(6) 상부에 부극 플레이트(12)를 용접한 후, 주입구(10)를 통하여 전해액을 주입하고 그 주입구(10)에 플러그를 막아 밀봉되어진다.The cap assembly 8 is welded to the negative electrode plate 12 on the top of the can 6, injects electrolyte through the inlet 10, and seals the plug by plugging the inlet 10.
그러나 종래의 이차전지를 보면, 주입구(10)가 작아 전해액 주입시 장시간이 소요되는 문제점이 있는데, 이것은 캔(6)과 캡 어셈블리(8)를 레이저 용접할 때, 고열에 의해 전해액이 열분해 하는 것을 방지하기 위한 것으로, 조립 공정의 최종 단계로 직경이 작은 주입구(10)를 통해 전해액을 주입하므로 장시간이 소요되는 것이다.However, in the conventional secondary battery, there is a problem that the injection hole 10 is small and takes a long time when the electrolyte is injected. This is because, when laser welding the can 6 and the cap assembly 8, the electrolyte is thermally decomposed by high heat. In order to prevent the injection of the electrolyte through the injection hole 10 having a small diameter as a final step of the assembly process, it takes a long time.
또 종래의 이차전지는 경량화를 위해 캔과 캡 어셈블리를 알루미늄 재질로 제작할 경우에는 전해액 주입구에 플러그나 볼을 용접할 수 없으므로, 도 3과 같이 주입구(10)에 고무마개(10a)를 막고 그 상부에 알루미늄 플레이트(10b)를 레이저 용접하게 되는 바, 이러한 방법은 작업이 복잡하고 번거로운 문제점이 있다.In addition, in the conventional secondary battery, when the can and cap assembly are made of aluminum for light weight, the plug or ball may not be welded to the electrolyte injection hole, so as to block the rubber stopper 10a at the injection hole 10 as shown in FIG. Laser welding of the aluminum plate (10b) to the bar, this method is complicated and cumbersome work.
앞서 설명한 종래 기술의 문제점을 해결하기 위한 것으로서, 본 발명은 전해액 주입 공정을 용이하고 빠르게 실현할 수 있도록 하고, 주입구를 제거하므로 구성 부품을 단순화할 수 있도록 함에 그 목적을 두고 있다.In order to solve the problems of the prior art described above, the present invention aims to facilitate and quickly realize the electrolyte injection process, and to simplify the components by removing the injection port.
이를 위하여 본 발명에서는 캔의 내부에 전극부와 함께 전해액을 주입하되 이것을 냉각 지그에 설치하고, 그 캔의 상측 단부에 캡 어셈블리를 배치하여 레이저 용접하는 이차전지의 제조방법을 제공한다.To this end, the present invention provides a method for manufacturing a secondary battery in which an electrolyte is injected together with an electrode part in a can, installed in a cooling jig, and a cap assembly is disposed at an upper end of the can.
냉각 지그는 전해액의 열분해를 방지하기 위해 적어도 -20℃ 이하로 되게 유지한다.The cooling jig is kept to be at least -20 ° C or less to prevent thermal decomposition of the electrolyte.
이러한 방법에 따라 본 발명은 별도의 공정이 필요 없이도 전해액 주입을 용이하고 빠르게 달성할 수 있다. 또 본 발명은 캡 어셈블리에서 전해액 주입구를 제거하므로 부품 수의 감소와 단순화를 달성할 수 있다.According to this method, the present invention can easily and quickly achieve electrolyte injection without the need for a separate process. In addition, the present invention can achieve the reduction and simplification of the number of parts by removing the electrolyte inlet from the cap assembly.
도 1은 본 발명에 의한 이차전지의 제조방법을 설명하는 도면1 is a view for explaining a method for manufacturing a secondary battery according to the present invention.
도 2는 일반적인 이차전지를 보인 전체 단면도.2 is a cross-sectional view showing a typical secondary battery.
도 3은 종래 공지된 캡 어셈블리의 단면도.3 is a cross-sectional view of a conventionally known cap assembly.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
6-캔 22a,22b-냉각 지그6-can 22a, 22b-cooling jig
24-레이저 용접기 80-캡 어셈블리24-Laser Welder 80-Cap Assembly
이하, 본 발명을 실현하기 위한 바람직한 실시예를 첨부 도면에 의거하여 설명한다. 참고로 본 발명을 설명함에 있어 종래 기술에서 인용된 도면과 동일한 구성에 대하여는 같은 부호를 부여하기로 한다.Best Mode for Carrying Out the Invention Preferred embodiments for realizing the present invention will be described below with reference to the accompanying drawings. For reference, in describing the present invention, the same reference numerals will be given to the same configurations as those of the drawings cited in the related art.
도 1은 본 발명에 의한 이차전지의 제조장치 및 방법을 보여주고 있다.1 shows an apparatus and method for manufacturing a secondary battery according to the present invention.
본 발명에서는 이차전지의 하나로 리튬이온전지에 대하여 설명하기로 한다. 리튬이온전지는 정극 활물질로,및중에서 적어도 1종이함유된 리튬-천이금속산화물을 사용하고, 부극 활물질로 탄소 및 탄소복합체를 사용하며, 전해액으로 유기용매에 리튬염을 녹인 것을 사용한다.In the present invention, a lithium ion battery will be described as one of secondary batteries. Lithium-ion battery is a positive electrode active material , And Among them, at least one lithium-transition metal oxide contained therein is used, carbon and a carbon complex are used as the negative electrode active material, and a lithium salt is dissolved in an organic solvent as an electrolyte.
이러한 이차전지는 도면에서와 같이, 캔(6)에 상측 단부에 캡 어셈블리(80)를 용접하여 밀봉하게 되는 바, 여기서 본 발명은 캔(6)과 캡 어셈블리(80)의 용접 공정 전에 캔(6) 내부에 전극부와 전해액을 함께 수납한다.The secondary battery is sealed by welding the cap assembly 80 at the upper end to the can 6, as shown in the drawing, wherein the present invention can be performed before the welding process of the can 6 and the cap assembly 80. 6) The electrode part and the electrolyte are housed together.
이때 전해액은 용접에 의한 고열로 열분해할 수 있는데, 이를 방지하기 위하여 본 발명에서는 캔(6)을 냉각 지그(22a)(22b)에 설치한다. 냉각 지그(22a)(22b)는 내부에 냉매가 흐르는 냉각 코일이 설치되어서 적어도 -20℃ 이하의 온도로 유지되어야 한다.At this time, the electrolyte may be pyrolyzed by high heat by welding, in order to prevent this, in the present invention, the can 6 is installed in the cooling jig 22a, 22b. The cooling jig 22a, 22b should be maintained at a temperature of at least -20 ° C by installing a cooling coil in which refrigerant flows.
냉각 지그(22a)(22b)는 캔(6)의 설치를 위해 2부분으로 분리되어서 동력원에 의해 벌어지거나 좁혀지게 되어 있다.The cooling jig 22a, 22b is divided into two parts for installation of the can 6, and is opened or narrowed by a power source.
냉각 지그(22a)(22b)에 설치된 캔(6)의 상부에는 캡 어셈블리(80)가 배치되고 레이저 용접기(24)에 의해 결합되어지는 바, 이때 전해액은 상기와 같은 이유로 열분해가 발생하지 않는다.The cap assembly 80 is disposed on the upper part of the can 6 installed in the cooling jig 22a and 22b and is coupled by the laser welder 24. In this case, the electrolyte solution does not cause thermal decomposition.
이에 따라 본 발명에서는 캡 어셈블리(80)를 구성함에 있어 종래의 전해액 주입구를 제거할 수 있는 것이며, 부품의 수가 줄어 구조의 단순화를 실현할 수 있다.Accordingly, in the present invention, in the cap assembly 80, the conventional electrolyte injection hole can be removed, and the number of parts can be reduced to simplify the structure.
보다 구체적으로 본 발명의 캡 어셈블리(80)는 캔(6)의 상측 단부에 용접되는 부극 플레이트(12)의 가운데에 절연체(16) 및 가스켓(18)을 개재하여 정극 플레이트(14)를 설치하고, 부극 플레이트(12)와 정극 플레이트(14) 및 가스켓(18)을 리벳(20)을 이용하여 결합함으로써 어셈블리되어 진다.More specifically, the cap assembly 80 of the present invention installs the positive electrode plate 14 through the insulator 16 and the gasket 18 in the center of the negative electrode plate 12 welded to the upper end of the can 6. The negative electrode plate 12 and the positive electrode plate 14 and the gasket 18 are assembled by using the rivet 20.
캡 어셈블리(80)의 부극 플레이트(12)에는 전지의 내압 상승 및 폭발에 대한 안전대책으로 안전변(26)을 형성한다. 또 캡 어셈블리(80)는 리벳(20)과 전극부에서 인출된 정극 탭을 용접하므로 정극 단자로 사용된다.The negative electrode plate 12 of the cap assembly 80 forms a safety valve 26 as a safety measure against the internal pressure rise and explosion of the battery. In addition, the cap assembly 80 is used as a positive electrode terminal because it welds the rivet 20 and the positive electrode tab drawn from the electrode portion.
반면 캔(6)은 전극부에서 인출된 부극 탭과 용접되거나 혹은 전극부 최외곽의 부극과 직접 접촉됨에 의해 부극 단자로 사용되어진다.On the other hand, the can 6 is used as a negative electrode terminal by welding with the negative electrode tab drawn out from the electrode portion or by being in direct contact with the negative electrode at the outermost portion of the electrode portion.
이상에서 설명한 구성 및 작용을 통하여 알 수 있는 바와 같이, 본 발명에 의한 이차전지의 제조방법은 캔을 냉각하여 용접하는 방식에 의해 종래 기술의 문제점을 실질적으로 해소하고 있다.As can be seen through the configuration and operation described above, the secondary battery manufacturing method according to the present invention substantially solves the problems of the prior art by the method of cooling the can by welding.
즉 본 발명은 캔을 전해액의 열분해 온도 이하로 냉각하므로, 그 캔의 내부에 전극부와 함께 전해액을 주입한 상태에서도 용접 공정을 실시할 수 있는 것이다.That is, according to the present invention, the can is cooled below the thermal decomposition temperature of the electrolyte, so that the welding process can be performed even when the electrolyte is injected together with the electrode portion inside the can.
따라서 본 발명에 의하면 전지의 최종 제조 단계로 수행되었던 별도 전해액의 주입 공정을 생략할 수 있는 것이며, 캔의 상측 개구를 통하여 전해액을 주입하므로 용이하고 빠른 작업을 실현할 수 있다.Therefore, according to the present invention, it is possible to omit the process of injecting a separate electrolyte solution, which has been performed as a final manufacturing step of the battery.
또 본 발명에 의하면 캡 어셈블리에서 전해액 주입구를 제거하므로, 부품 구성의 수를 줄이고 단순화할 수 있다.In addition, according to the present invention, since the electrolyte injection port is removed from the cap assembly, the number of component parts can be reduced and simplified.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990009598A KR100307454B1 (en) | 1999-03-22 | 1999-03-22 | Method for making secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990009598A KR100307454B1 (en) | 1999-03-22 | 1999-03-22 | Method for making secondary battery |
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| Publication Number | Publication Date |
|---|---|
| KR20000060915A KR20000060915A (en) | 2000-10-16 |
| KR100307454B1 true KR100307454B1 (en) | 2001-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990009598A KR100307454B1 (en) | 1999-03-22 | 1999-03-22 | Method for making secondary battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100749477B1 (en) | 2006-02-21 | 2007-08-14 | 삼성에스디아이 주식회사 | Jig for welding cap plate of secondary battery |
| KR20150036885A (en) * | 2013-09-30 | 2015-04-08 | 주식회사 엘지화학 | Battery Cell Cooling Device Having Cooling Jig and Cooler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102028082B1 (en) * | 2016-01-20 | 2019-11-14 | 주식회사 엘지화학 | Preparation apparatus and method of battery cell |
-
1999
- 1999-03-22 KR KR1019990009598A patent/KR100307454B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100749477B1 (en) | 2006-02-21 | 2007-08-14 | 삼성에스디아이 주식회사 | Jig for welding cap plate of secondary battery |
| KR20150036885A (en) * | 2013-09-30 | 2015-04-08 | 주식회사 엘지화학 | Battery Cell Cooling Device Having Cooling Jig and Cooler |
| KR101699853B1 (en) * | 2013-09-30 | 2017-01-25 | 주식회사 엘지화학 | Battery Cell Cooling Device Having Cooling Jig and Cooler |
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| Publication number | Publication date |
|---|---|
| KR20000060915A (en) | 2000-10-16 |
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