{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "A secondary battery is provided and includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode current collector including aluminum and a positive electrode active material layer provided on the positive electrode current…",
  "path": "/patents/1435231",
  "publishedAt": "2026-07-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0587",
    "MURATA MANUFACTURING CO., LTD."
  ],
  "textContent": "A secondary battery is provided and includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode current collector including aluminum and a positive electrode active material layer provided on the positive electrode current collector. The positive electrode active material layer includes a lithium-containing compound. The electrolytic solution includes an electrolyte, a solvent, and an additive. The electrolyte includes a bis(fluorosulfonyl)imide salt. The solvent includes at least one of an ethylene carbonate, a propylene carbonate, a fluoroethylene carbonate, a dimethyl carbonate, and a gamma butyrolactone. The additive includes at least one of a lithium fluorophosphate, a sulfinyl compound, and a dinitrile compound. The molar ratio of the original solvent to lithium ions, which is calculated from a vibration spectrum of the electrolytic solution, is more than 0 and 1.78 or less.",
  "title": "SECONDARY BATTERY"
}