{
  "$type": "site.standard.document",
  "description": "Provided is a secondary battery capacity estimation system that can efficiently estimate the capacity of a secondary battery from the state of an internal resistance of the secondary battery even when the usage history of the secondary battery is different from others. The secondary battery…",
  "path": "/patents/1392518",
  "publishedAt": "2025-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/3648",
    "TOYO SYSTEM CO LTD [JP]"
  ],
  "textContent": "Provided is a secondary battery capacity estimation system that can efficiently estimate the capacity of a secondary battery from the state of an internal resistance of the secondary battery even when the usage history of the secondary battery is different from others. The secondary battery capacity estimation system is a system that estimates the capacity of a secondary battery, which includes: a target secondary battery information acquisition unit that acquires target secondary battery information; a group determination unit that inputs, to a classification model, the usage history of a target secondary battery and internal resistance value increase information included in the target secondary battery information to determine a trend group of the target secondary battery; and a capacity estimation unit that estimates a capacity index value of the target secondary battery based on correlation information corresponding to the target secondary battery information and the trend group. The classification model is a trained model obtained by machine learning using the sample secondary battery information as training data, and configured to output a trend group to which the target secondary battery is relevant when the target secondary battery information is input.",
  "title": "SECONDARY BATTERY CAPACITY ESTIMATION SYSTEM"
}