SURFACE-TREATED COPPER FOIL, AND CURRENT COLLECTOR, ELECTRODE, AND BATTERY CELL USING THE SURFACE-TREATED COPPER FOIL

SURFACE-TREATED COPPER FOIL, AND CURRENT COLLECTOR, ELECTRODE, AND BATTERY CELL USING THE SURFACE-TREATED COPPER FOIL

To provide a surface-treated copper foil for a battery cell that is capable of providing good adhesiveness to an active substance and undergoes less detachment of roughening particles. The surface-treated copper foil for a battery cell according to one or more embodiments of the present application...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MIKI, Atsushi, ARAI, Hideta
Format: Patent
Sprache:eng ; hun
Schlagworte:
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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Beschreibung
Zusammenfassung:To provide a surface-treated copper foil for a battery cell that is capable of providing good adhesiveness to an active substance and undergoes less detachment of roughening particles. The surface-treated copper foil for a battery cell according to one or more embodiments of the present application contains a copper foil and a surface treatment layer on at least one surface of the copper foil, wherein the surface treatment layer contains a primary particle layer and a secondary particle layer, and the surface of the surface treatment layer has a ten-point average roughness Rz of 1.8 mm or more measured with a laser microscope with a wavelength of 405 nm according to JIS B0601 1994.