KR20060025312A - Cutting device of second cell electrode - Google Patents

Cutting device of second cell electrode Download PDF

Info

Publication number
KR20060025312A
KR20060025312A KR1020040074051A KR20040074051A KR20060025312A KR 20060025312 A KR20060025312 A KR 20060025312A KR 1020040074051 A KR1020040074051 A KR 1020040074051A KR 20040074051 A KR20040074051 A KR 20040074051A KR 20060025312 A KR20060025312 A KR 20060025312A
Authority
KR
South Korea
Prior art keywords
coolant
refrigerant
current collector
cutting device
cutting
Prior art date
Application number
KR1020040074051A
Other languages
Korean (ko)
Other versions
KR100580122B1 (en
Inventor
유동환
박재철
김형식
장은정
Original Assignee
주식회사 디지털텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 디지털텍 filed Critical 주식회사 디지털텍
Priority to KR1020040074051A priority Critical patent/KR100580122B1/en
Publication of KR20060025312A publication Critical patent/KR20060025312A/en
Application granted granted Critical
Publication of KR100580122B1 publication Critical patent/KR100580122B1/en

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • H01M4/64—Carriers or collectors
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

본 발명은 릴에 권취된 스트라입 타입의 집전체를 절단하는 절단장치로서, 냉매 저장부 및 냉매 토출부로 이루어진 냉각부를 더 포함하며, 냉매 토출부는 냉매 저장부로부터 냉매를 공급받아 절단장치의 절단날에 냉매를 토출하여 절단날을 냉각시키는 절단장치를 제공한다. 또한, 냉매 토출부는 냉매가 집전체에는 접촉되지 않도록 냉매의 토출량을 조절할 수 있도록 구성되어 있다. 상기 구성에 의하여 본 발명은 집전체 절단면이 마찰열로 인하여 물성이 저하되지 않도록 하며, 냉매가 집전체를 오염시키는 것도 방지한다.The present invention is a cutting device for cutting a strip type current collector wound on a reel, further comprising a cooling unit consisting of a refrigerant storage unit and a refrigerant discharge unit, the refrigerant discharge unit is supplied with a refrigerant from the refrigerant storage unit cutting blade of the cutting device Provided is a cutting device for cooling a cutting blade by discharging a coolant to the. In addition, the coolant discharge part is configured to adjust the discharge amount of the coolant so that the coolant does not contact the current collector. According to the above configuration, the present invention prevents the current collector cut surface from deteriorating physical properties due to frictional heat and prevents the refrigerant from contaminating the current collector.

Description

이차전지의 집전체 절단장치{CUTTING DEVICE OF SECOND CELL ELECTRODE}Current collector cutting device of secondary battery {CUTTING DEVICE OF SECOND CELL ELECTRODE}

도 1 은 이차전지의 일반적인 구성을 도시한 사시도.1 is a perspective view showing a general configuration of a secondary battery.

도 2 는 릴에 권취된 집전체를 절단하는 종래의 절단장치의 개략도.2 is a schematic view of a conventional cutting device for cutting a current collector wound on a reel;

도 3 은 본 발명의 일 실시예에 따른 절단장치의 개략도.3 is a schematic view of a cutting device according to an embodiment of the present invention.

본 발명은 리튬 이차전지의 집전체 절단장치에 관한 것으로서, 보다 상세하게는 절단기에 발생하는 마찰열을 냉각시켜주는 냉각부를 포함하는 절단장치에 관한 것이다.The present invention relates to a current collector cutting device of a lithium secondary battery, and more particularly, to a cutting device including a cooling unit for cooling the frictional heat generated in the cutter.

일반적으로 리튬 계열 이차 전지의 개략적인 구조는 도 1과 같다. 도 1에 나타낸 것과 같이, 전지부 (10) 는 양극판 (11), 세퍼레이터 (12), 음극판 (13) 이 순차적으로 적층되어 있고, 상기 순서로 다수층 적층되어 하나의 전지부 (10)를 이루고 있다.In general, the schematic structure of a lithium-based secondary battery is shown in FIG. 1. As shown in FIG. 1, the battery unit 10 includes a positive electrode plate 11, a separator 12, and a negative electrode plate 13 sequentially stacked, and a plurality of layers are stacked in this order to form one battery unit 10. have.

양극판 (11) 은 양극 집전체 (14) 와 양극 집전체의 양 면에 형성되는 양극 활물질 (15) 로 이루어져 있으며, 양극 집전체 (14) 의 일 가장자리로부터는 양극 탭 (16) 이 인출되어 있다.The positive electrode plate 11 is composed of the positive electrode current collector 14 and the positive electrode active material 15 formed on both sides of the positive electrode current collector, and the positive electrode tab 16 is drawn out from one edge of the positive electrode current collector 14. .

한편, 음극판 (13) 은 음극 집전체 (17) 및 음극 집전체 (17) 의 양면에 형성되는 음극 활물질 (18) 로 이루어져 있으며, 음극 집전체 (17) 의 일 가장자리로부터는 음극 탭 (19) 이 인출되어 있다.On the other hand, the negative electrode plate 13 is composed of the negative electrode current collector 17 and the negative electrode active material 18 formed on both sides of the negative electrode current collector 17, and the negative electrode tab 19 is formed from one edge of the negative electrode current collector 17. Is drawn out.

양극 및 음극 집전체 (14, 17) 에는 양면에 형성되는 양극 및 음극 활물질 (15, 18) 들끼리의 전기적 접촉을 가지도록 다수개의 개구공 (미도시) 이 형성되어 있다.In the positive and negative electrode current collectors 14 and 17, a plurality of opening holes (not shown) are formed to have electrical contact between the positive and negative electrode active materials 15 and 18 formed on both surfaces.

집전체 (14, 17) 는 개구공을 형성시키는 방식에 따라 여러 가지 형태로 분류할 수 있다. 즉, 집전체에 프레스 가공을 통하여 개구공을 형성시키는 방식인 펀치드 메탈형, 집전체에 노치부를 형성시키고 이를 양 방향으로 인장하여 개구공을 형성시키는 방식인 익스펜디드 메탈형, 집전체에 감광성 필름이나 잉크를 도포하고 에칭하여 개구공을 형성시키는 방식인 에치드 메탈형 등이 있다. The current collectors 14 and 17 can be classified into various forms depending on the manner of forming the opening holes. That is, the punched metal type, which is a method of forming opening holes in the current collector through press working, and the expanded metal type, which is a method of forming notches in the current collector and tensioning them in both directions to form opening holes. The etched metal type etc. which are a system which forms an aperture hole by apply | coating and etching a photosensitive film or an ink are mentioned.

도 2 에는 릴 (20) 에 권취되어 있는 스트라입 형태의 집전체 원소재 (22)를 절단날 (24) 로 절단하는 장치가 개시되어 있다. 릴 (20) 에 권취되어 있는 집전체 원소재 (22) 는 릴로부터 풀려나오면서 절단날 (24) 에 의하여 절단되어 필요한 크기에 맞게 가공된다. 이때, 절단날 (24) 에는 계속되는 절단 가공으로 인하여 마찰열이 발생하며, 절단날에 발생된 마찰열은 집전체 절단면의 물성을 저하시킨다.FIG. 2 discloses an apparatus for cutting the current collector raw material material 22 in the form of a strip wound around the reel 20 with a cutting blade 24. The current collector raw material 22 wound around the reel 20 is cut by the cutting blade 24 while being unwound from the reel and processed to a required size. At this time, frictional heat is generated on the cutting blade 24 due to the subsequent cutting process, and the frictional heat generated on the cutting blade lowers the physical properties of the current collector cutting surface.

따라서, 본 발명은 절단날의 마찰열로 인하여 집전체 절단면의 물성이 저하되지 않도록 냉각부가 포함된 절단장치를 제공하는 것을 목적으로 한다. Accordingly, an object of the present invention is to provide a cutting device including a cooling unit so that the physical properties of the cutting surface of the current collector is not lowered due to the frictional heat of the cutting blade.                         

또한, 본 발명은 냉각부에 의하여 집전체가 오염되지 않도록 하는 절단장치를 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide a cutting device for preventing the current collector from being contaminated by the cooling unit.

상술한 목적을 달성하기 위하여 본 발명은 릴에 권취된 스트라입 타입의 집전체를 절단하는 절단장치로서, 냉매 저장부 및 냉매 토출부로 이루어진 냉각부를 더 포함하며, 냉매 토출부는 냉매 저장부로부터 냉매를 공급받아 절단장치의 절단날에 냉매를 토출하여 절단날을 냉각시키는 절단장치를 제공한다.In order to achieve the above object, the present invention is a cutting device for cutting a strip type current collector wound on a reel, further comprising a cooling unit consisting of a refrigerant storage unit and a refrigerant discharge unit, the refrigerant discharge unit is a refrigerant from the refrigerant storage unit Provided is a cutting device for cooling the cutting blade by discharging the refrigerant to the cutting blade of the cutting device.

또한, 냉매 토출부는 냉매가 집전체에는 접촉되지 않도록 냉매의 토출량을 조절할 수 있도록 구성되어 있으며, 도 3에는 본 발명에 따른 절단장치가 실시예로서 도시되어 있다.In addition, the coolant discharge unit is configured to adjust the discharge amount of the coolant so that the coolant does not contact the current collector, Figure 3 shows a cutting device according to the present invention as an embodiment.

도 3의 절단장치에는 도 2 에 도시된 절단장치에 냉각부 (30) 이 추가되어 있다. 냉각부 (30) 는 냉매 저장부 (32) 와 냉매 토출부 (34) 로 이루어져 있으며, 냉매 토출부 (34) 는 절단날 (24) 에 냉매를 토출한다.In the cutting device of FIG. 3, a cooling unit 30 is added to the cutting device shown in FIG. 2. The cooling part 30 is comprised from the refrigerant | coolant storage part 32 and the refrigerant discharge part 34, and the refrigerant discharge part 34 discharges a refrigerant | coolant to the cutting blade 24. As shown in FIG.

냉매를 토출하는 방식은 여러 가지가 있을 수 있으며, 어느 방식을 사용하던 냉매가 집전체에 접촉되지는 않아야 한다. 이는 냉매로 인하여 집전체의 물성이 악화되는 것을 방지하기 위함이다.There may be various ways of discharging the coolant, and the coolant may not be in contact with the current collector in any of the methods. This is to prevent deterioration of the physical properties of the current collector due to the refrigerant.

도 3의 실시예에서는 냉매 토출부에 스폰지 (36)를 부착하고 있다. 따라서, 냉매 토출부 (34) 로부터 토출된 냉매는 일단 스폰지 (36)에 스며들고, 스폰지 (36) 가 절단날 (24) 에 접촉됨으로써, 절단날 (24) 은 냉각된다. 스폰지 (36) 는 냉매가 절단날 (24) 에 과다하게 토출되어 집전체에까지 이르지 않도록 마련된 다. 또한, 냉매 토출부 (34) 도 스폰지 (36) 에 냉매가 과다하게 토출되지 않도록 조절된다. 즉, 냉매 토출부 (34) 와 스폰지의 작용에 의하여 냉매가 집전체에 접촉되는 것을 효과적으로 방지할 수 있다.In the embodiment of Fig. 3, a sponge 36 is attached to the refrigerant discharge portion. Therefore, the coolant discharged from the coolant discharge part 34 penetrates the sponge 36 once, and the cutting blade 24 is cooled by contacting the sponge 36 with the cutting blade 24. The sponge 36 is provided so that the refrigerant is not excessively discharged to the cutting blade 24 to reach the current collector. In addition, the coolant discharge part 34 is also adjusted so that the coolant is not excessively discharged to the sponge 36. That is, it is possible to effectively prevent the refrigerant from contacting the current collector by the action of the refrigerant discharge part 34 and the sponge.

이상은 본 발명을 예를 들어 설명한 것으로서, 본 발명은 본 발명은 상술한 예에 한정되지 않으며, 본 발명의 권리는 첨부된 특허청구범위에 기재된 바에 따라 결정된다. 또한, 동 업계에 종사하는 자에 의하여 본 발명의 다양한 변형예 들이 실시될 수 있으나, 이는 모두 본 발명의 권리 범위에 속하는 것임을 명백히 한다.As mentioned above, the present invention has been described by way of example, and the present invention is not limited to the above-described examples, and the rights of the present invention are determined according to the appended claims. In addition, various modifications of the present invention can be carried out by those skilled in the art, but it is obvious that all belong to the scope of the present invention.

이상에서 검토한 바와 같이, 본 발명에 따라 냉각부를 포함하는 절단장치를 사용하면, 집전체를 오염시키지 않으면서, 절단날을 냉각시킴으로써, 집전체 절단면이 마찰열로 인하여 물성이 저하되는 것을 방지할 수 있다.As discussed above, by using the cutting device including the cooling unit according to the present invention, by cooling the cutting blade without contaminating the current collector, it is possible to prevent the current collector cutting surface from deteriorating due to frictional heat. have.

Claims (3)

릴에 권취된 스트라입 타입의 집전체를 절단하는 절단장치로서,A cutting device for cutting a current collector of the stripe type wound on a reel, 냉매 저장부 및 냉매 토출부로 이루어진 냉각부를 더 포함하며,Further comprising a cooling unit consisting of a refrigerant storage unit and a refrigerant discharge unit, 상기 냉매 토출부는 냉매 저장부로부터 냉매를 공급받아 절단장치의 절단날에 냉매를 토출하여 절단날을 냉각시키는 것을 특징으로 하는 절단장치.And the coolant discharge part receives coolant from the coolant storage part and discharges coolant to the cutting blade of the cutting device to cool the cutting blade. 제1항에 있어서,The method of claim 1, 상기 냉매 토출부는 냉매가 집전체에는 접촉되지 않도록 냉매의 토출량을 조절할 수 있는 것을 특징으로 하는 절단장치.And the coolant discharge part may adjust a discharge amount of the coolant so that the coolant does not contact the current collector. 제2항에 있어서,The method of claim 2, 상기 냉매 토출부는 토출된 냉매를 일시 저장하는 스폰지를 포함하며, The refrigerant discharge unit includes a sponge for temporarily storing the discharged refrigerant, 상기 스폰지는 상기 절단날에 접촉하여 상기 절단날을 냉각시킴으로써, 냉매가 절단날에 직접 흘러내리지 않도록 하는 것에 특징이 있는 절단장치.The sponge is in contact with the cutting blade to cool the cutting blade, characterized in that the refrigerant does not flow directly to the cutting blade.
KR1020040074051A 2004-09-16 2004-09-16 Cutting device of second cell electrode KR100580122B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040074051A KR100580122B1 (en) 2004-09-16 2004-09-16 Cutting device of second cell electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040074051A KR100580122B1 (en) 2004-09-16 2004-09-16 Cutting device of second cell electrode

Publications (2)

Publication Number Publication Date
KR20060025312A true KR20060025312A (en) 2006-03-21
KR100580122B1 KR100580122B1 (en) 2006-05-15

Family

ID=37130852

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040074051A KR100580122B1 (en) 2004-09-16 2004-09-16 Cutting device of second cell electrode

Country Status (1)

Country Link
KR (1) KR100580122B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101943634B1 (en) * 2017-12-29 2019-01-29 신현집 Blanking mold for punching lithium secondary battery equipped with punch cooling means
US10964969B2 (en) 2015-08-31 2021-03-30 Lg Chem, Ltd. Secondary battery electrode manufacturing device including electrode mixture layer forming mold

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10964969B2 (en) 2015-08-31 2021-03-30 Lg Chem, Ltd. Secondary battery electrode manufacturing device including electrode mixture layer forming mold
EP3346525B1 (en) * 2015-08-31 2021-12-08 LG Chem, Ltd. Secondary battery electrode manufacturing device including electrode mixture layer forming mold
KR101943634B1 (en) * 2017-12-29 2019-01-29 신현집 Blanking mold for punching lithium secondary battery equipped with punch cooling means

Also Published As

Publication number Publication date
KR100580122B1 (en) 2006-05-15

Similar Documents

Publication Publication Date Title
US7507435B2 (en) Slitter apparatus and production method of electrode
JP6505859B2 (en) Nonaqueous electrolyte secondary battery
JP4632860B2 (en) Secondary battery and manufacturing method thereof
US10062897B2 (en) Battery electrode and a method for producing same
KR100646508B1 (en) Separator and Secondary Battery with the same
JP2000058103A (en) Battery
KR20210072823A (en) Electrode Assemblies and Batteries
JP2011018637A (en) Manufacturing method of electrode for electrochemical element
CN100505382C (en) Oxidation resistant separator for a battery
KR100580122B1 (en) Cutting device of second cell electrode
US9379410B2 (en) Preventing internal short circuit in a lithium-ion battery cell
JP2001126708A (en) Method of manufacturing nonaqueous electrolyte battery
JP6958475B2 (en) Electrode plate manufacturing method
US7740667B2 (en) Method of fabricating an electrode plate for rechargeable battery
JP2006196218A (en) Manufacturing apparatus and method of electrode of secondary battery
JP2001283836A (en) Manufacturing method of battery and sheet-cutting method
CN113054237A (en) High-energy-density soft package lithium ion battery
JP2021140981A (en) Secondary battery
KR102158143B1 (en) Electrode assembly
EP1571721A1 (en) Method of preventing short circuiting in a lithium ion battery
KR100579382B1 (en) Electrode plate rolling device for secondary battery
KR20050096290A (en) Secondary battery fabricated to protect internal short circuit between electrodes
KR101106405B1 (en) Method of fabricating Jelly-Roll Assembly and Apparatus for the same
US20240178460A1 (en) Positive electrode for lithium-ion battery, battery core, and lithium-ion battery
JPH1074522A (en) Electrode plate for battery

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee