{
  "$type": "site.standard.document",
  "description": "The invention provides a secondary battery charging method and device which can charge sufficient charge in a secondary battery adopting a nickel oxide as an electrode material for an anode, while minimizing the reduction in the cathode capacity of the secondary battery. The secondary battery…",
  "path": "/patents/1107074",
  "publishedAt": "2002-01-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/963",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "The invention provides a secondary battery charging method and device which can charge sufficient charge in a secondary battery adopting a nickel oxide as an electrode material for an anode, while minimizing the reduction in the cathode capacity of the secondary battery. The secondary battery charging device comprises: charging voltage detecting means (14) for detecting the terminal voltage (Vch) of a secondary battery being charged; quadratic changing rate detecting means (16) for detecting the change( DELTA ( DELTA V)/ DELTA ( DELTA t)) in the changing rate of said terminal voltage (Vch); and charge ending means (25) for ending the charge when the change in said changing rate is lower than a predetermined reference changing rate (Vref).",
  "title": "Method and device for charging secondary battery"
}