{
  "$type": "site.standard.document",
  "description": "Provided in the present disclosure is a battery separator, including: at least one base film; at least one inorganic layer located on the base film; and a plurality of polymer particles. The plurality of polymer particles are located on the inorganic layer. The density of the polymer particles is…",
  "path": "/patents/1381495",
  "publishedAt": "2026-04-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/451",
    "SHANGHAI ENERGY NEW MATERIALS TECHNOLOGY CO., LTD."
  ],
  "textContent": "Provided in the present disclosure is a battery separator, including: at least one base film; at least one inorganic layer located on the base film; and a plurality of polymer particles. The plurality of polymer particles are located on the inorganic layer. The density of the polymer particles is less than the density of the inorganic layer. In the present disclosure, the prepared polymer particles having a multilayer structure are blended with barium titanate. A blended slurry is coated onto the base film and then placed in an oven for drying. During a drying process, a density difference exists between barium titanate and the polymer particles, so that barium titanate having a relatively large density sinks and the polymer particles float up. Therefore, the manufactured battery separator has excellent heat resistance and high adhesive performance.",
  "title": "BATTERY SEPARATOR AND PREPARATION METHOD THEREOF"
}