COPPER FOIL HAVING MINIMIZED SAG, WRINKLE, AND TEAR, ELECTRODE COMPRISING THE SAME, SECONDARY BATTERY COMPRISING THE SAME, AND MANUFACTURING METHOD THEREFOR

To provide a copper foil having minimized sags, wrinkles and tears, an electrode comprising the same, a secondary battery comprising the same, and a manufacturing method therefor.SOLUTION: A copper foil 100 comprises a copper layer 110, and has 29-65 kgf/mmof a tensile strength, 18-148 μm of a mean...

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Bibliographic Details
Main Authors LEE JEONG GIL, KIM SUN MIN
Format Patent
LanguageEnglish
Japanese
Published 20.02.2020
Subjects
APPARATUS THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:To provide a copper foil having minimized sags, wrinkles and tears, an electrode comprising the same, a secondary battery comprising the same, and a manufacturing method therefor.SOLUTION: A copper foil 100 comprises a copper layer 110, and has 29-65 kgf/mmof a tensile strength, 18-148 μm of a mean width of roughness profile elements (Rsm), and 0.52 or less of a texture coefficient bias [TCB(220)].SELECTED DRAWING: Figure 1 【課題】本発明はたるみ、しわ及び引裂が最小化した銅箔、それを含む電極、それを含む二次電池、及びその製造方法に関する。【解決手段】銅層１１０を含み、２９〜６５ｋｇｆ／ｍｍ２の引張強度、１８〜１４８μｍの粗度プロファイル要素平均間隔（ｍｅａｎ ｗｉｄｔｈ ｏｆ ｒｏｕｇｈｎｅｓｓ ｐｒｏｆｉｌｅ ｅｌｅｍｅｎｔｓ）（Ｒｓｍ）、及び０．５２以下の集合組職係数バイアス［ＴＣＢ（２２０）］、を有する銅箔１００を提供する。【選択図】図１
Bibliography:Application Number: JP20180153124