{
  "$type": "site.standard.document",
  "description": "It is an object of the present invention to accurately estimate the state of deterioration and service life of a secondary battery having a negative electrode free of a negative electrode active material using a simple configuration. One aspect of the present invention is a state-of-deterioration…",
  "path": "/patents/1350096",
  "publishedAt": "2023-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/392",
    "TeraWatt Technology K.K."
  ],
  "textContent": "It is an object of the present invention to accurately estimate the state of deterioration and service life of a secondary battery having a negative electrode free of a negative electrode active material using a simple configuration. One aspect of the present invention is a state-of-deterioration estimating device in a secondary battery having a negative electrode free of a negative electrode active material, the state-of-deterioration estimating device comprising: an acquiring unit that acquires a post-discharge OCV that is an open circuit voltage (OCV) in the state after a predetermined amount of time or more has elapsed since the discharge was stopped; a calculating unit that calculates the state of deterioration of the secondary battery based on the acquired post-discharge OCV by referencing characteristic information indicating the change in a predetermined deterioration index that indicates the degree of deterioration in the secondary battery relative to the change in the post-discharge OCV of the secondary battery; and an output unit that outputs the state of deterioration that has been calculated.",
  "title": "DETERIORATION STATE ESTIMATION DEVICE, DETERIORATION STATE ESTIMATION METHOD, PROGRAM, AND POWER SUPPLY DEVICE FOR ANODE-FREE LITHIUM BATTERY EQUIPPED WITH SAME"
}