{
  "$type": "site.standard.document",
  "description": "An electrode tab disconnection inspection apparatus of a battery cell according to the present technology includes: a measurement part configured to measure impedance values and impedance angles according to a frequency of a battery cell to be inspected; an arithmetic part configured to calculate…",
  "path": "/patents/1395998",
  "publishedAt": "2025-09-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R1/073",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "An electrode tab disconnection inspection apparatus of a battery cell according to the present technology includes: a measurement part configured to measure impedance values and impedance angles according to a frequency of a battery cell to be inspected; an arithmetic part configured to calculate real part resistance values of impedance according to the frequency of the battery cell to be inspected from the impedance values and the impedance angles; and a determination part configured to compare real part resistance values of a real part resistance value region in a resonant frequency range of non-defective battery cells of the same type as the battery cell to be inspected and real part resistance values of impedance of the battery cell to be inspected in a frequency range having the same range as the resonant frequency range to inspect whether electrode tabs of the battery cell to be inspected are disconnected.",
  "title": "DISCONNECTION TESTING APPARATUS FOR ELECTRODE TAB OF BATTERY CELL"
}