{
  "$type": "site.standard.document",
  "description": "The present invention relates to a secondary battery including an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate are wound in one direction and impregnated with an…",
  "path": "/patents/1427403",
  "publishedAt": "2026-06-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/04",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "The present invention relates to a secondary battery including an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate are wound in one direction and impregnated with an electrolyte; a hollow center pin disposed on a winding axis of the electrode assembly and having a plurality of holes formed on an outer circumferential surface thereof; an electrolyte solid disposed inside a hollow of the center pin and including a first polymer electrolyte having a melting point of 60°C to 73°C; a battery case accommodating the electrode assembly and the center pin; and a sealing body sealing an open end of the battery case. A secondary battery with improved electrolyte impregnability may be achieved by using the electrolyte solid in the secondary battery.",
  "title": "SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME"
}