Ni-plated steel sheet for battery can having excellent press formability

Provided is a Ni-plated steel sheet having excellent press formability. An Fe-Ni diffusion layer and a softened Ni layer formed on the Fe-Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of a battery can, a semi-bright Ni plating layer is formed on the so...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMATSU EIJI, MINAGI HIDEYUKI
Format:	Patent
Sprache:	eng
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:	Provided is a Ni-plated steel sheet having excellent press formability. An Fe-Ni diffusion layer and a softened Ni layer formed on the Fe-Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of a battery can, a semi-bright Ni plating layer is formed on the softened Ni layer, a Ni coating weight of the Fe-Ni diffusion layer and the softened Ni layer formed on the Fe-Ni diffusion layer is set smaller than a Ni coating weight of the semi-bright Ni plating layer, and average roughness Ra of the semi-bright Ni plating layer measured by a traceable roughness gauge is 1.0 μm or more and 2.0 μm or less, and a maximum height Ry of the semi-bright Ni plating layer measured by the traceable roughness gauge is 5 μm or more and 20 μm or less.