{
  "$type": "site.standard.document",
  "description": "The present disclosure provides a secondary battery and a preparation method thereof, a positive electrode plate, a negative electrode plate and an electrically-powered device. A positive electrode active material includes a lithium iron phosphate (LFP) positive electrode material, LiNiOand LiFeO…",
  "path": "/patents/1381834",
  "publishedAt": "2026-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/136",
    "BatteroTech Corporation Limited"
  ],
  "textContent": "The present disclosure provides a secondary battery and a preparation method thereof, a positive electrode plate, a negative electrode plate and an electrically-powered device. A positive electrode active material includes a lithium iron phosphate (LFP) positive electrode material, LiNiOand LiFeO. By adjusting a mixing ratio and limiting the mixing ratio, a specific capacity of active materials and an electrolyte filling coefficient to satisfy a specific relationship, the specific capacity and cycle performance of LFP batteries can be significantly improved, thereby making the lithium-ion batteries simultaneously exhibit superior energy density, cycle performance and safety.",
  "title": "SECONDARY BATTERY AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, NEGATIVE ELECTRODE PLATE AND ELECTRICALLY-POWERED DEVICE"
}