{
  "$type": "site.standard.document",
  "description": "A battery diagnosis apparatus includes: an ohmic resistance determining unit configured to determine an ohmic resistance of a battery cell in each of a plurality of impedance profiles generated at different time points for the battery cell, a resistance change rate calculating unit configured to…",
  "path": "/patents/1350094",
  "publishedAt": "2023-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/389",
    "LG Energy Solution, Ltd."
  ],
  "textContent": "A battery diagnosis apparatus includes: an ohmic resistance determining unit configured to determine an ohmic resistance of a battery cell in each of a plurality of impedance profiles generated at different time points for the battery cell, a resistance change rate calculating unit configured to calculate a resistance change rate between the plurality of determined ohmic resistances, a gas generation level determining unit configured to determine an internal gas generation level of the battery cell based on the calculated resistance change rate, and a state diagnosing unit configured to diagnose a state of the battery cell according to the determined internal gas generation level.",
  "title": "Battery Diagnosing Apparatus, Method and System"
}