{
  "$type": "site.standard.document",
  "description": "A device for detecting a battery condition (10) may include a storage device (11) storing a battery model (111) that models a voltage change and an internal impedance of a battery (20) as an electrical circuit, and a control device (13) configured to estimate a distribution status of lithium ions…",
  "path": "/patents/1416632",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/367",
    "SAMSUNG SDI CO LTD [KR]"
  ],
  "textContent": "A device for detecting a battery condition (10) may include a storage device (11) storing a battery model (111) that models a voltage change and an internal impedance of a battery (20) as an electrical circuit, and a control device (13) configured to estimate a distribution status of lithium ions in a positive electrode active material of the battery (20), detect a distortion zone remaining in a boundary portion of two identical-phase regions in the positive electrode active material based on the distribution status, estimate an overvoltage caused by the distortion zone, correct the battery model (111) by using a correction parameter corresponding to the overvoltage, and estimate a condition of the battery (20) by using the battery model (111).",
  "title": "DEVICE AND METHOD FOR DETECTING BATTERY CONDITION"
}