{
  "$type": "site.standard.document",
  "description": "A purpose of the present invention is to provide a surface treated steel sheet for a battery container having an excellent anti-alkaline characteristic and a performance for maintaining a discharging level for a long time, a battery container and a product method thereof. In the present invention…",
  "path": "/patents/1112078",
  "publishedAt": "2001-06-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C25D5/12",
    "TOYO KOHAN CO LTD [JP]"
  ],
  "textContent": "A purpose of the present invention is to provide a surface treated steel sheet for a battery container having an excellent anti-alkaline characteristic and a performance for maintaining a discharging level for a long time, a battery container and a product method thereof. In the present invention, after forming a nickel-bismuth alloy layer on a steel sheet, the steel sheet is thermally treated at 300 °C to 650 °C in an inactive gas or a deoxidizing gas for 240 to 600 min so that an iron-nickel diffused layer and nickel-bismuth diffused layer are formed at each boundary surface. A battery is produced by utilizing a battery container made of a steel sheet on which one or more than layers selected from a group of an iron-nickel diffused layer, a nickel layer, a nickel-bismuth diffused layer, an iron-nickel-bismuth alloy layer is formed on the steel sheet.",
  "title": "SURFACE-TREATED STEEL SHEET FOR BATTERY CASE, BATTERY CASE COMPRISING THE SAME, METHODS FOR PRODUCING THEM, AND BATTERY"
}