{
  "$type": "site.standard.document",
  "description": "Provided is a lithium secondary battery separator including a stack body of a substrate and a porous heat-resistant polyimide film which covers at least one surface of the substrate. The porous heat-resistant polyimide film has pores which are regularly arrayed three-dimensionally and a film…",
  "path": "/patents/968833",
  "publishedAt": "2014-10-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "UNIV TOKYO METROPOLITAN [JP]"
  ],
  "textContent": "Provided is a lithium secondary battery separator including a stack body of a substrate and a porous heat-resistant polyimide film which covers at least one surface of the substrate. The porous heat-resistant polyimide film has pores which are regularly arrayed three-dimensionally and a film thickness of 5-20 µm. Penetration damage to the separator by growth of dendrite-shaped lithium is avoided, and it is also possible to meet a request which is demanded of the lithium secondary battery separator.",
  "title": "LITHIUM SECONDARY BATTERY SEPARATOR AND METHOD OF MANUFACTURING SAME"
}