{
  "$type": "site.standard.document",
  "description": "An aspect of the present disclosure provides a separator for a lithium secondary battery comprising a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes inorganic particles, a polyvinylidene…",
  "path": "/patents/1421253",
  "publishedAt": "2025-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01G11/52",
    "LG CHEMICAL LTD [KR]"
  ],
  "textContent": "An aspect of the present disclosure provides a separator for a lithium secondary battery comprising a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes inorganic particles, a polyvinylidene fluoride-based binder polymer, a polyvinylpyrrolidone binder polymer and a dispersant and the polyvinylidene fluoride-based binder polymer has a predetermined molecular weight and amount, and a manufacturing method thereof. Accordingly, it is possible to provide a separator with improved heat resistance as well as Lami Strength that is equal to or similar to that of the existing separator.",
  "title": "SEPARATOR FOR LITHIUM SECONDARY BATTERY"
}