{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "A battery management apparatus according to an embodiment of the present disclosure includes: an EIS unit configured to output an AC current to a battery at a plurality of time points and generate an EIS profile representing a resistance of the battery as a corresponding relationship between a real…",
  "path": "/patents/1400841",
  "publishedAt": "2025-11-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R27/02",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "A battery management apparatus according to an embodiment of the present disclosure includes: an EIS unit configured to output an AC current to a battery at a plurality of time points and generate an EIS profile representing a resistance of the battery as a corresponding relationship between a real part and an imaginary part at each of the plurality of time points; and a control unit configured to obtain the plurality of EIS profiles for the battery generated by the EIS unit, determine a plurality of arcs in each of the plurality of EIS profiles, calculate an arc resistance value for each of the plurality of determined arcs, calculate a resistance change rate for the arc resistance value between corresponding arcs among the plurality of arcs, and determine each of the plurality of arcs as a negative electrode-originated arc or a positive electrode-originated arc based on the plurality of calculated resistance change rates and a preset criterion change rate.",
  "title": "BATTERY MANAGEMENT APPARATUS AND METHOD"
}