{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A device for detecting a battery condition may include a storage device storing a battery model that models a voltage change and an internal impedance of a battery as an electrical circuit, and a control device configured to estimate a distribution status of lithium ions in a positive electrode…",
  "path": "/patents/1423325",
  "publishedAt": "2026-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/367",
    "Samsung SDI Co., Ltd."
  ],
  "textContent": "A device for detecting a battery condition may include a storage device storing a battery model that models a voltage change and an internal impedance of a battery as an electrical circuit, and a control device configured to estimate a distribution status of lithium ions in a positive electrode active material of the battery, 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 by using a correction parameter corresponding to the overvoltage, and estimate a condition of the battery by using the battery model.",
  "title": "DEVICE AND METHOD FOR DETECTING BATTERY CONDITION"
}