{
  "$type": "site.standard.document",
  "description": "A method for determining ageing of an individual battery cell of a lithium-ion battery. The battery cell is actively charged or discharged with a power pulse, or such a power pulse charging or discharging is detected during operation of the battery, where an occurring current pulse and a voltage…",
  "path": "/patents/1374820",
  "publishedAt": "2025-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/392",
    "Mercedes-Benz Group AG"
  ],
  "textContent": "A method for determining ageing of an individual battery cell of a lithium-ion battery. The battery cell is actively charged or discharged with a power pulse, or such a power pulse charging or discharging is detected during operation of the battery, where an occurring current pulse and a voltage response of the battery cell are recorded in an idle phase following the power pulse with lower power or without power and a relaxation of the battery cell is evaluated, where a relaxation time constant is determined and stored, after which a charging curve and a discharging curve is formed over the charge of the battery cell from the currently detected and stored relaxation time constant when charging or discharging the battery cell by the power pulse, where a current capacity of the battery cell is deduced on a basis of a point where the charging and discharging curves intersect.",
  "title": "Method for Determining the Ageing of an Individual Battery Cell as Well as a Method for Controlling a Battery"
}