{
  "$type": "site.standard.document",
  "description": "A negative electrode active material for an electric device includes an alloy containing Si in a range from 23% to 64% exclusive, Sn in a range from 4% to 58% inclusive, Zn in a range from 0% to 65% exclusive, and inevitable impurities as a residue. The negative electrode active material can be…",
  "path": "/patents/968574",
  "publishedAt": "2014-10-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C22C13/00",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "A negative electrode active material for an electric device includes an alloy containing Si in a range from 23% to 64% exclusive, Sn in a range from 4% to 58% inclusive, Zn in a range from 0% to 65% exclusive, and inevitable impurities as a residue. The negative electrode active material can be obtained with a multi DC magnetron sputtering apparatus by use of, for example, silicon, tin and zinc as targets. An electric device such as a lithium ion secondary battery employing the negative electrode active material can improve cycle life of the battery and ensure a high capacity and high cycle durability.",
  "title": "NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRICAL DEVICE"
}