{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to a device and a method for detecting an internal resistance of a battery. An internal resistance detection device according to embodiments includes: a measuring device configured to measure a state value of a battery; and a control device configured to determine a…",
  "path": "/patents/1389594",
  "publishedAt": "2026-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/389",
    "Samsung SDI Co., Ltd."
  ],
  "textContent": "The present disclosure relates to a device and a method for detecting an internal resistance of a battery. An internal resistance detection device according to embodiments includes: a measuring device configured to measure a state value of a battery; and a control device configured to determine a state of charge (SOC) of the battery based on the state value, estimate a lithium ion distribution state within a positive electrode active material of the battery based on the SOC, determine a detection section depending on the lithium ion distribution state, and determine an internal resistance value of the battery based on the state value measured within the detection section.",
  "title": "DEVICE AND METHOD FOR DETECTING INTERNAL RESISTANCE OF BATTERY"
}