{
  "$type": "site.standard.document",
  "description": "The present invention relates to a composite separator for a lithium secondary battery, and an aqueous manufacturing method therefor, the composite separator comprising: a porous polymer substrate; a heat-resistant coating layer containing inorganic material formed on the surface of the porous…",
  "path": "/patents/1329043",
  "publishedAt": "2022-10-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/446",
    "G-Materials Co., Ltd."
  ],
  "textContent": "The present invention relates to a composite separator for a lithium secondary battery, and an aqueous manufacturing method therefor, the composite separator comprising: a porous polymer substrate; a heat-resistant coating layer containing inorganic material formed on the surface of the porous polymer substrate; and a composite binder in which an organic-inorganic composite sol and an organic polymer are mixed, or an modified organic polymer binder, which bonds the porous polymer substrate and the heat-resistant coating layer, and a nonionic surfactant. Composite separators disclosed. in the present invention exhibits high air permeability, low thermal shrinkage, and excellent electrochemical characteristics.",
  "title": "COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY AND MANUFACTURING THE SAME"
}