{
  "$type": "site.standard.document",
  "description": "Provided is a Ni-plated steel sheet being excellent in press formability and suppression of wear of a mold and capable of maintaining alkali battery characteristic even after a lapse of time. In a Ni-plated steel sheet for a battery can having excellent press formability, an Fe-Ni diffusion layer…",
  "path": "/patents/996140",
  "publishedAt": "2012-11-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C25D5/14",
    "TOYO KOHAN CO LTD [JP]"
  ],
  "textContent": "Provided is a Ni-plated steel sheet being excellent in press formability and suppression of wear of a mold and capable of maintaining alkali battery characteristic even after a lapse of time. In a Ni-plated steel sheet for a battery can having excellent press formability, an Fe-Ni diffusion layer and a Ni layer formed on the Fe-Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of the battery can, a semi-bright Ni plating layer is formed on the Ni layer, a Ni coating weight of the Fe-Ni diffusion layer and the Ni layer formed on the Fe-Ni diffusion layer is set equal to or smaller than a Ni coating weight of the semi-bright Ni plating layer, the Ni coating weight of the semi-bright Ni plating layer is 2.25g/mor more, surface roughness Ra1 of a surface of the semi-bright Ni plating layer in an area of 2.5jim × 2.5µm which is measured by an atomic force microscope falls within a range from 3 to 11nm, and surface roughness Ra2 measured by a traceable roughness gauge is 0.3µm or more and 2.2µm or less with respect to the surface roughness Ra of the semi-bright Ni plating layer.",
  "title": "NI-PLATED STEEL SHEET WITH EXCELLENT PRESSABILITY FOR BATTERY CAN"
}