Metal foil for current collector of secondary battery and method of producing the same

A metal foil for a current collector of a secondary battery formed by electrodeposition and has a thickness (T) of 8 to 40 mum, the metal foil satisfying the following formulae:where S is a breaking strength (MPa), epsilon is a tensile elongation (%) and Y is a Young's modulus (MPa).This foil i...

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Bibliographische Detailangaben
Hauptverfasser:	NOUMI RYOICHI, SHIOTA TOSHIAKI, KIMOTO MASANARI, TAMAKI TADAYUKI, FUKUI KUNIHIRO, SETO HIROHISA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	A metal foil for a current collector of a secondary battery formed by electrodeposition and has a thickness (T) of 8 to 40 mum, the metal foil satisfying the following formulae:where S is a breaking strength (MPa), epsilon is a tensile elongation (%) and Y is a Young's modulus (MPa).This foil is preferably a nickel foil and is manufactured by softening or annealing the metal foil obtained by electrodeposition. Thereby, a metal foil for a negative electrode of a secondary battery is obtained with an excellent capability of supporting the active material and large electric conductivity.