KR20080105852A - Device for manufacturing a lithium rechargeable battery and method for manufacturing using the same - Google Patents

Device for manufacturing a lithium rechargeable battery and method for manufacturing using the same Download PDF

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KR20080105852A
KR20080105852A KR1020070053962A KR20070053962A KR20080105852A KR 20080105852 A KR20080105852 A KR 20080105852A KR 1020070053962 A KR1020070053962 A KR 1020070053962A KR 20070053962 A KR20070053962 A KR 20070053962A KR 20080105852 A KR20080105852 A KR 20080105852A
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South Korea
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pole plate
roller
plate
manufacturing
electrode plate
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KR1020070053962A
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Korean (ko)
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한원철
다카노다카시
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삼성에스디아이 주식회사
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Publication of KR20080105852A publication Critical patent/KR20080105852A/en

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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0414—Methods of deposition of the material by screen printing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0435—Rolling or calendering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/431—Inorganic material
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

A device for manufacturing an electrode plate of a lithium rechargeable battery is provided to improve the coating quality by forming a uniform ceramic layer irrespective of the viscosity of a ceramic layer and the density of the plate active material. A device for manufacturing an electrode plate of a lithium rechargeable battery is equipped with a plate transfer unit(10) and a printing roller(30) installed on the transfer path of the plate transfer unit. The pressure roller(50) rolling the plate surface processed as a printing roller is equipped on the transfer path of the plate transfer unit. The printing roller comprises a doctor blade(40) washing the surface. The manufacturing device of the plate further includes a drier(60) drying the plate passed through the pressure roller.

Description

리튬이차전지의 극판 제조장치 및 극판 제조방법{DEVICE FOR MANUFACTURING A LITHIUM RECHARGEABLE BATTERY AND METHOD FOR MANUFACTURING USING THE SAME}DEPICE FOR MANUFACTURING A LITHIUM RECHARGEABLE BATTERY AND METHOD FOR MANUFACTURING USING THE SAME

도 1은 본 발명에 따른 리튬이차전지의 극판 제조장치를 개략적으로 도시한 도면.1 is a view schematically showing an electrode plate manufacturing apparatus of a lithium secondary battery according to the present invention.

도 2는 본 발명에 따른 닥터 블레이드를 구비한 인쇄 롤러를 개략적으로 도시한 도면.Figure 2 schematically shows a printing roller with a doctor blade according to the invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 극판이송장치 20: 극판이송장치 롤러10: pole plate feeder 20: pole plate feeder roller

30: 인쇄 롤러 40: 닥터 블레이드30: printing roller 40: doctor blade

50: 가압롤러 60: 건조기50: pressure roller 60: dryer

본 발명은 리튬이차전지의 극판 제조장치 및 상기 극판의 제조방법에 관한 것으로, 보다 상세하게는 극판이송장치, 상기 극판이송장치로부터 극판을 공급받는 닥터 브레이드를 구비한 인쇄 롤러, 상기 코팅재를 다시 가압하는 가압롤러 및 건조기를 포함하는 리튬이차전지의 극판 제조장치 및 상기 극판의 제조방법에 관한 것이다.The present invention relates to a pole plate manufacturing apparatus for a lithium secondary battery and a manufacturing method of the pole plate, and more specifically, a pole plate transfer device, a printing roller having a doctor blade supplied with the pole plate from the pole plate transfer device, pressurizing the coating material again It relates to a pole plate manufacturing apparatus for a lithium secondary battery comprising a pressurized roller and a dryer and a manufacturing method of the pole plate.

일반적으로 비디오 카메라, 휴대용 전화, 휴대용 PC 등의 휴대용 무선 기기의 경량화 및 고기능화가 진행됨에 따라 그 구동용 전원으로 사용되는 전지에 대해 많은 연구가 이루어지고 있다. 지금까지 개발된 전지는 10여 종에 달하며, 가장 많이 사용되고 있는 것으로는 니켈 카드뮴 전지, 니켈 수소전지, 니켈 아연 전지, 리튬이차전지 등이 있다. 이 중에서 리튬이차전지는 수명이 길고 용량이 크다는 장점을 가지고 있다.In general, as the light weight and high functionality of portable wireless devices such as a video camera, a portable telephone, a portable PC, and the like become more advanced, many studies have been made on batteries used as a driving power source. There are about 10 types of batteries developed so far, and the most used ones are nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries. Among these, lithium secondary batteries have the advantage of long life and large capacity.

통상적인 리튬이차전지는 양극판, 음극판 및 세퍼레이터를 구비하여 소정 전류를 생성하는 전지몸체와 이 전지몸체를 감싸서 밀봉하는 케이스를 구비하여 이루어진다. 그리고, 전지몸체에 외부와의 전기적으로 통로 역할을 하는 전극단자가 연결되며, 이 전극단자는 케이스 밖으로 소정 길이 노출되도록 설치된다.A typical lithium secondary battery includes a battery body including a positive electrode plate, a negative electrode plate, and a separator to generate a predetermined current, and a case surrounding and sealing the battery body. Then, an electrode terminal, which serves as an electrical path to the outside, is connected to the battery body, and the electrode terminal is installed to expose a predetermined length out of the case.

일반적으로 리튬이차전지는 양극판 및 음극판은 집전체를 포함하는데, 리튬이차전지의 극판은 집전체 적어도 일면에 활물질 페이스트를 코팅하여 제조한다. 근래에 고온에서 세퍼레이터가 녹아 음극 및 양극 단락이 발생하는 것을 방지하기 위해 세라믹 입자를 소량의 바인더로 결착한 세라믹층을 세퍼레이터에 대체 및 추가하는 경우가 있다.In general, a lithium secondary battery includes a positive electrode plate and a negative electrode plate, and a collector of the lithium secondary battery is prepared by coating an active material paste on at least one surface of the collector. In recent years, in order to prevent the separator from melting at a high temperature to generate a negative electrode and a positive electrode, a ceramic layer in which ceramic particles are bound with a small amount of binder may be replaced or added to the separator.

세라믹층은 극판 활물질층 표면에 인쇄방식으로 도포될 수 있다. 이때 도포될 세라믹 페이스트에서 페이스트 점도가 낮으면 형성될 세라믹층에 핀홀 발생위험이 있고 점도가 높으면 인쇄롤에 찌꺼기가 생겨 세라믹층에 흔적이 인쇄방향으로 길게 생기고 취약부가 되기 쉽다.The ceramic layer may be applied to the surface of the electrode plate active material layer by a printing method. At this time, if the paste viscosity is low in the ceramic paste to be applied, there is a risk of pinholes in the ceramic layer to be formed, and if the viscosity is high, debris is formed on the printing roll, and traces are formed in the ceramic layer in the printing direction and are easily vulnerable.

상기와 같은 문제점을 해결하기 위한 본 발명의 목적은 세라믹층 코팅재의 점도 및 극판 활물질의 조밀성과 무관하게 균일한 세라믹층을 형성하여 코팅 품질을 향상시키기 위한 것이다.An object of the present invention for solving the above problems is to form a uniform ceramic layer irrespective of the viscosity of the ceramic layer coating material and the density of the electrode plate active material to improve the coating quality.

상기 목적을 달성하기 위한 본 발명의 리튬이차전지의 극판 제조장치는 극판이송장치 및 상기 극판이송장치의 이송 경로 상에 설치되는 인쇄 롤러를 구비하며,The pole plate manufacturing apparatus of the lithium secondary battery of the present invention for achieving the above object is provided with a pole plate transfer device and a printing roller installed on the transfer path of the pole plate transfer device,

상기 인쇄 롤러로 처리된 극판면을 압연하는 가압롤러가 이송경로 상에 더 구비되는 것을 특징으로 한다.A pressure roller for rolling the electrode plate surface treated with the printing roller is further provided on a conveying path.

또한 본 발명에서 상기 인쇄 롤러는 롤러표면에 형성되는 찌꺼기를 제거할 닥터 블레이드를 구비할 수 있다. 이때, 상기 닥터 블레이드는 롤러의 폭방향으로 움직일 수 있도록 설치될 수 있다.In addition, in the present invention, the printing roller may be provided with a doctor blade to remove debris formed on the surface of the roller. At this time, the doctor blade may be installed to move in the width direction of the roller.

또한 본 발명에서 극판 제조장치는 상기 가압롤러를 통과한 상기 극판에 코팅된 세라믹 코팅재를 건조시키는 건조기를 더 포함할 수 있다.In addition, the electrode plate manufacturing apparatus in the present invention may further include a dryer for drying the ceramic coating material coated on the electrode plate passed through the pressure roller.

또한 본 발명의 상기 세퍼레이터는 세라믹층으로만 이루어질 수 있다.In addition, the separator of the present invention may be made of only a ceramic layer.

본 발명의 세라믹층의 세라믹입자는 실리카(SiO2), 알루미나(Al2O3), 지르코늄 산화물(ZrO2), 또는 티타늄 산화물(TiO2) 중 적어도 어느 하나로 형성될 수 있다.The ceramic particles of the ceramic layer of the present invention may be formed of at least one of silica (SiO 2 ), alumina (Al 2 O 3 ), zirconium oxide (ZrO 2 ), or titanium oxide (TiO 2 ).

이상과 같은 본 발명의 구성에 따르면, 상기와 같이 인쇄 롤러와 가압롤러를 극판이송장치에 장착함으로써 극판의 활물질층의 조밀도가 낮고 세라믹층 코팅재 점도가 낮은 경우 발생할 수 있는 핀홀 형성을 방지할 수 있다.According to the configuration of the present invention as described above, by mounting the printing roller and the pressure roller to the plate feed device as described above, it is possible to prevent pinhole formation that may occur when the density of the active material layer of the plate is low and the viscosity of the ceramic layer coating material is low. have.

또한 본 발명의 방법은 극판이송장치 및 인쇄롤러를 포함하는 리튬이차전지의 극판 제조방법에 관한 것으로, 보다 상세하게는In addition, the method of the present invention relates to a method for manufacturing a pole plate of a lithium secondary battery comprising a pole plate transfer device and a printing roller, more specifically

활물질층이 형성된 극판을 이송하면서 롤러로 상기 극판 표면에 세라믹층 코팅재를 인쇄방식으로 도포하는 단계;Coating a ceramic layer coating material on the surface of the electrode plate by a printing method while transferring the electrode plate on which an active material layer is formed;

상기 세라믹층 코팅재가 극판 표면을 가압 롤러로 가압하는 단계; 및The ceramic layer coating material pressing the surface of the electrode plate with a pressure roller; And

상기 세라믹층 코팅재가 도포된 극판 표면을 건조기에서 건조시키는 단계를 포함하는 것을 특징으로 한다.And drying the electrode plate surface to which the ceramic layer coating material is applied in a dryer.

이하 도면을 참조하면서 일 실시예를 통해 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 1에 도시한 바와 같이 극판이송장치(10)의 극판이송장치 롤러(20)에 의해 활물질이 형성된 극판이 상기 극판이송장치(10)에 설치된 닥터블레이드(40)를 구비한 인쇄롤러(30)에 도달하여 상기 인쇄롤러(30)에 의해 세라믹 코팅재가 코팅되고 가압된다. 상기 코팅된 극판은 다시 극판이송장치 롤러(20)에 의해서 가압롤러(50)에 통과시켜 코팅된 세라믹층 내에 생길 수 있는 핀홀이나 불균일한 도포로 인한 얼룩을 제거한다. 이어서 세라믹층 코팅된 극판을 건조기(60)에서 건조한다.As shown in FIG. 1, a printing roller 30 having a doctor blade 40 provided with an active material formed by the pole plate feeder roller 20 of the pole plate feeder 10 installed on the pole plate feeder 10. It reaches and the ceramic coating material is coated and pressed by the printing roller 30. The coated electrode plate again passes through the pressure roller 50 by the electrode plate feeder roller 20 to remove stains due to pinholes or uneven coating that may occur in the coated ceramic layer. The ceramic layer coated electrode plate is then dried in a dryer 60.

상기 인쇄롤러(30)로 극판에 세라믹 코팅재를 도포한 후 극판의 일부 건조한 후 가압롤러(50)로 이송하도록 한다.After coating the ceramic coating material on the electrode plate with the printing roller 30 to dry some of the electrode plate to be transferred to the pressure roller (50).

본 발명에 따른 실시예에서 극판의 활물질부에 세퍼레이터 코팅재를 코팅할 경우 활물질의 조밀도가 감소되면, 세퍼레이터 코팅 표면에 핀홀 형성이 발생할 우려가 있다. 그러므로 극판이 닥터블레이드(40)를 구비한 인쇄롤러(30)에서 가압되기 전에 극판이송장치(10)에 별도의 가압롤러(미도시)를 설치하여 활물질층을 다시 한번 가압하여 핀홀을 방지할 수 있다.When the separator coating material is coated on the active material portion of the electrode plate in the embodiment according to the present invention, if the density of the active material is reduced, there is a fear that pinhole formation occurs on the surface of the separator coating. Therefore, before the pole plate is pressurized by the printing roller 30 having the doctor blade 40, a separate press roller (not shown) may be installed in the pole plate transfer device 10 to pressurize the active material layer once again to prevent pinholes. have.

또한 일반적으로 세퍼레이터 코팅재의 점도가 높고 코팅시간이 길어질수록 인쇄 롤러와 닥터블레이드 사이에 이물질이 생겨서 세퍼레이터 코팅 표면에 얼룩이 생길 수 있다.Also, in general, the higher the viscosity of the separator coating material and the longer the coating time, the more foreign matter may occur between the printing roller and the doctor blade, which may cause staining on the surface of the separator coating.

또한 상기 닥터 블레이드(40)가 롤러의 폭방향으로 이동하여서 롤러가 회전함에 따라 롤러 표면을 긁어 표면의 잔유물을 제거하여 극판에 새라믹 코팅재를 균일하게 코팅되게 한다.In addition, the doctor blade 40 moves in the width direction of the roller, and as the roller rotates, the surface of the roller is scratched to remove residues from the surface, thereby uniformly coating the ceramic coating material on the electrode plate.

본 발명에 대해 상기 실시예를 참고하여 설명하였으나, 이는 예시적인 것에 불과하여, 본 발명에 속하는 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다.Although the present invention has been described with reference to the above embodiments, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

상기에서 상세히 설명한 바와 같이, 본 발명에 따르면 세퍼레이터 코팅재가 닥터블레이드를 구비한 인쇄 롤러와 가압롤러에서 극판에 코팅되고 가압되어 기존의 극판이송장치에 설치된 인쇄 롤러에 의해서만 처리된 경우 세퍼레이터 코팅 표면 상에 생길 수 있는 핀홀 형성 및 얼룩을 방지할 수 있는 효과가 있다.As described in detail above, according to the present invention, the separator coating material is coated on the pole plate in the printing roller and the pressure roller with the doctor blade and pressurized to be treated only by the printing roller installed in the existing pole plate feeder on the separator coating surface. There is an effect that can prevent the formation of pinholes and stains that may occur.

Claims (9)

극판이송장치 및 상기 극판이송장치의 이송 경로 중에 설치된 인쇄 롤러를 구비하는 극판제조장치에 있어서,A pole plate manufacturing apparatus comprising a pole plate feeder and a printing roller provided in a transport path of the pole plate feeder, 상기 인쇄 롤러로 처리된 극판면을 압연하는 가압롤러가 상기 극판이송장치의 이송경로 상에 구비되는 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The pressurizing roller for rolling the pole plate surface treated with the printing roller is provided on the conveying path of the pole plate conveying apparatus. 제 1항에 있어서, 상기 인쇄 롤러는 표면을 세정하는 닥터 블레이드를 구비하는 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The apparatus of claim 1, wherein the printing roller comprises a doctor blade for cleaning a surface thereof. 제 1항에 있어서, 상기 극판 제조장치는 상기 가압롤러를 통과한 상기 극판을 건조시키는 건조기를 더 포함하는 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The pole plate manufacturing apparatus of claim 1, wherein the pole plate manufacturing apparatus further comprises a dryer for drying the pole plate passing through the pressure roller. 제 2항에 있어서, 상기 닥터블레이드는 상기 롤러의 폭방향으로 움직일 수 있도록 설치되는 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The apparatus of claim 2, wherein the doctor blade is installed to move in the width direction of the roller. 제 2항에 있어서, 상기 세퍼레이터는 세라믹 물질로 이루어진 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The electrode plate manufacturing apparatus of claim 2, wherein the separator is made of a ceramic material. 제 1항에 있어서, 상기 세라믹 물질은 실리카(SiO2), 알루미나(Al2O3), 지르코늄 산화물(ZrO2) 또는 티타늄 산화물(TiO2) 중 적어도 어느 하나인 것을 특징으로 하는 리튬이차전지의 극판 제조장치.The method of claim 1, wherein the ceramic material is at least one of silica (SiO 2 ), alumina (Al 2 O 3 ), zirconium oxide (ZrO 2 ) or titanium oxide (TiO 2 ) of the lithium secondary battery. Pole plate manufacturing equipment. 극판이송장치 및 인쇄롤러를 포함하는 리튬이차전지의 극판 제조방법에 있어서,In the method of manufacturing a pole plate of a lithium secondary battery comprising a pole plate transfer device and a printing roller, 활물질층이 형성된 극판을 이송하면서 롤러로 상기 극판 표면에 세라믹층 코팅재를 인쇄방식으로 도포하는 단계;Coating a ceramic layer coating material on the surface of the electrode plate by a printing method while transferring the electrode plate on which an active material layer is formed; 상기 세라믹층 코팅재가 극판 표면을 가압 롤러로 가압하는 단계; 및The ceramic layer coating material pressing the surface of the electrode plate with a pressure roller; And 상기 세라믹층 코팅재가 도포된 극판 표면을 건조기에서 건조시키는 단계를 포함하는 것을 특징으로 하는 리튬이차전지의 극판 제조방법.And drying the surface of the electrode plate coated with the ceramic layer coating material in a dryer. 제 7항에 있어서, 상기 도포하는 단계는 적어도 일부 기간에는 상기 롤러의 표면을 블레이드로 세정하는 것을 특징으로 하는 리튬이차전지의 극판 제조방법.8. The method of claim 7, wherein the applying of the blade comprises cleaning the surface of the roller with a blade at least in part. 제 7항 또는 제 8항에 있어서, 상기 도포하는 단계와 상기 가압하는 단계 중에 상기 세라믹층 코팅재를 일부 건조하는 단계가 더 포함되는 것을 특징으로 하는 리튬이차전지의 극판 제조방법.The method of claim 7 or 8, further comprising partially drying the ceramic layer coating material during the applying step and the pressing step.
KR1020070053962A 2007-06-01 2007-06-01 Device for manufacturing a lithium rechargeable battery and method for manufacturing using the same KR20080105852A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012074216A3 (en) * 2010-12-02 2012-09-07 주식회사 엘지화학 Folding device for electrode assembly
KR20140134180A (en) * 2013-05-13 2014-11-21 삼성에스디아이 주식회사 Dryer for electrode substrate for rechargeable battery and controlling method of the same
CN114203974A (en) * 2021-12-15 2022-03-18 安徽统凌科技新能源有限公司 Lithium battery pole piece baking and placing tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012074216A3 (en) * 2010-12-02 2012-09-07 주식회사 엘지화학 Folding device for electrode assembly
KR101334618B1 (en) * 2010-12-02 2013-11-29 주식회사 엘지화학 Device for Folding Electrode Assembly
US8757351B2 (en) 2010-12-02 2014-06-24 Lg Chem, Ltd. Device for folding electrode assembly
KR20140134180A (en) * 2013-05-13 2014-11-21 삼성에스디아이 주식회사 Dryer for electrode substrate for rechargeable battery and controlling method of the same
CN114203974A (en) * 2021-12-15 2022-03-18 安徽统凌科技新能源有限公司 Lithium battery pole piece baking and placing tool
CN114203974B (en) * 2021-12-15 2023-08-15 广东友飞翔新能源有限公司 Lithium battery pole piece baking and placing tool

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