{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "An object of the present disclosure is to provide a nonaqueous electrolyte secondary battery separator which has high heat resistance and is resistant to the detachment of a heat resistant layer. A nonaqueous electrolyte secondary battery according to an example embodiment includes a positive…",
  "path": "/patents/1281764",
  "publishedAt": "2021-01-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M2/1686",
    "SANYO Electric Co., Ltd."
  ],
  "textContent": "An object of the present disclosure is to provide a nonaqueous electrolyte secondary battery separator which has high heat resistance and is resistant to the detachment of a heat resistant layer. A nonaqueous electrolyte secondary battery according to an example embodiment includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The separator includes a polyolefin substrate and a heat resistant layer disposed on a side of the substrate. The heat resistant layer includes an aramid resin, and the aramid resin has a ratio (B/A) of 0.94 to 1.14 wherein A is the absorbance at a wavelength of 1318 cmand B is the absorbance at a wavelength of 1650 cmin an infrared absorption spectrum obtained by infrared spectroscopic measurement.",
  "title": "NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR"
}