{
  "$type": "site.standard.document",
  "description": "A separator for a rechargeable battery includes a porous substrate, and a coating layer including a plurality of annular patterns on at least one surface of the porous substrate. The annular patterns may include a plurality of polymer microparticles, the annular patterns may have an average…",
  "path": "/patents/1267449",
  "publishedAt": "2020-07-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M2/1646",
    "SAMSUNG SDI CO., LTD."
  ],
  "textContent": "A separator for a rechargeable battery includes a porous substrate, and a coating layer including a plurality of annular patterns on at least one surface of the porous substrate. The annular patterns may include a plurality of polymer microparticles, the annular patterns may have an average particle diameter (D50) of about 50 μm to about 500 μm, and rings of the annular patterns may have a ring width of about 5 μm to about 50 μm.",
  "title": "SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY, AND METHOD FOR PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME"
}