{
  "$type": "site.standard.document",
  "description": "An apparatus for estimating a state of a secondary battery (SB), including: a charging unit electrically connected to two terminals of the SB, the charging unit charging the SB, a voltage measuring unit electrically connected to and measuring a voltage across the two terminals of the SB, a time…",
  "path": "/patents/1263675",
  "publishedAt": "2020-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/392",
    "LG CHEM, LTD."
  ],
  "textContent": "An apparatus for estimating a state of a secondary battery (SB), including: a charging unit electrically connected to two terminals of the SB, the charging unit charging the SB, a voltage measuring unit electrically connected to and measuring a voltage across the two terminals of the SB, a time measuring unit for: receiving a voltage value of the SB from the voltage measuring unit, and during charging of the SB, in a predefined voltage range, measuring a charge time of the SB corresponding to the voltage range multiple times, and a control unit for: transmitting/receiving an electrical signal to/from the charging unit, the voltage measuring unit, and the time measuring unit, calculating a ratio of a first charge time and a second charge time measured by the time measuring unit sequentially at a time interval, and estimating a state of the SB.",
  "title": "APPARATUS AND METHOD FOR ESTIMATING STATE OF SECONDARY BATTERY"
}