{
  "$type": "site.standard.document",
  "description": "A battery pack includes a battery cell, a main relay provided on a charging and discharging path of the battery cell, a precharge relay, a precharge resistor, the precharge relay and the precharge resistor being connected in parallel to the main relay on the charging and discharging path, a…",
  "path": "/patents/1343219",
  "publishedAt": "2023-05-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/345",
    "LG ENERGY SOLUTION, LTD."
  ],
  "textContent": "A battery pack includes a battery cell, a main relay provided on a charging and discharging path of the battery cell, a precharge relay, a precharge resistor, the precharge relay and the precharge resistor being connected in parallel to the main relay on the charging and discharging path, a connector connected to a load including a capacitor; a communication part receiving a capacitance of the capacitor from the load through the connector, when the load is connected to the connector, and a controller obtaining the capacitance from the communication part, calculating a duty ratio corresponding to the capacitance, and precharging the capacitor by controlling an operation state of the precharge relay according to the calculated duty ratio.",
  "title": "BATTERY PACK, BATTERY SYSTEM AND PRECHARGE METHOD"
}