{
  "$type": "site.standard.document",
  "description": "The safety is ensured in such a manner that an abnormality of a secondary battery is detected, for example, a phenomenon that lowers the safety of the secondary battery is detected early and a warning is given to a user. A first protection circuit and a second protection circuit are provided for…",
  "path": "/patents/1316495",
  "publishedAt": "2022-04-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/0031",
    "SEMICONDUCTOR ENERGY LABORATORY CO., LTD."
  ],
  "textContent": "The safety is ensured in such a manner that an abnormality of a secondary battery is detected, for example, a phenomenon that lowers the safety of the secondary battery is detected early and a warning is given to a user. A first protection circuit and a second protection circuit are provided for one secondary battery. The first protection circuit includes a memory circuit including a transistor including an oxide semiconductor. Combination of a plurality of protection circuits enables a complementary double protection system in charging, and the safety can be further enhanced.",
  "title": "PROTECTION CIRCUIT FOR SECONDARY BATTERY AND ABNORMALITY DETECTION SYSTEM OF SECONDARY BATTERY"
}