Electrode and Secondary Battery Using the Same and Method for Manufacturing the Electrode

The present invention relates to an electrode capable of preventing a short circuit between an anode and a cathode even when overheat of the battery is caused by laminating a short-circuiting prevention film on a surface of an electrode, a secondary battery using the same, and a method for manufactu...

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Bibliographische Detailangaben
Hauptverfasser:	KIM DONG WOO, RHO SEUNG YUN, PARK SEUNG GON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES BASIC ELECTRIC ELEMENTS BRAIDING CHEMISTRY COTTON-WOOL DYES ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL NON-WOVEN FABRICS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SEPARATION TEXTILES TRANSPORTING TRIMMINGS USE OF MATERIALS AS ADHESIVES WADDING
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Beschreibung
Zusammenfassung:	The present invention relates to an electrode capable of preventing a short circuit between an anode and a cathode even when overheat of the battery is caused by laminating a short-circuiting prevention film on a surface of an electrode, a secondary battery using the same, and a method for manufacturing an electrode. An electrode for a secondary battery of the present invention comprises: an electrode current collector; an active material layer formed on the electrode current collector; and a short-circuiting prevention film laminated on the active material layer. The short-circuiting prevention film is formed of a nano-web-type porous membrane formed by integrating nanofiber strands obtained by electrospinning polyacrylonitrile (PAN). 본 발명은 전극의 표면에 단락방지막을 적층하여 전지의 과열이 발생할지라도 단락방지막이 양극과 음극 사이의 단락을 방지할 수 있는 전극 및 이를 이용한 이차전지와 전극의 제조방법에 관한 것이다. 본 발명의 이차전지용 전극은 전극 집전체; 상기 전극 집전체에 형성된 활물질층; 및 상기 활물질층에 적층된 단락방지막;을 포함하며, 상기 단락방지막은 폴리아크릴로니트릴(PAN)을 전기방사하여 얻어지는 나노섬유 스트랜드를 집적하여 형성되는 나노 웹(nano web) 형태의 다공성 멤브레인(Membrane)으로 이루어지는 것을 특징으로 한다.