{
  "$type": "site.standard.document",
  "description": "A lithium ion secondary battery comprising: (i) a cathode comprising a cathode active material that can reversibly occlude and release lithium ions wherein the upper cut-off voltage for the cathode during charging against Li/Li + is of at least 4.4 V, preferably of at least 4.5 V and more preferred…",
  "path": "/patents/975169",
  "publishedAt": "2014-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "BASF SE [DE]"
  ],
  "textContent": "A lithium ion secondary battery comprising: (i) a cathode comprising a cathode active material that can reversibly occlude and release lithium ions wherein the upper cut-off voltage for the cathode during charging against Li/Li + is of at least 4.4 V, preferably of at least 4.5 V and more preferred of at least 4.6 V; (ii) an anode comprising an anode active material selected from silicon; and (iii) a non-aqueous electrolyte comprising at least one lithium salt and at least one non-aqueous organic solvent selected from fluorinated carbonates.",
  "title": "Lithium ion secondary battery comprising a silicon anode"
}