{
  "$type": "site.standard.document",
  "description": "A secondary battery is provided and includes a positive electrode, a negative electrode, a separator interposed between a main surface of the positive electrode and a main surface of the negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active…",
  "path": "/patents/1426680",
  "publishedAt": "2026-06-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "MURATA MANUFACTURING CO., LTD."
  ],
  "textContent": "A secondary battery is provided and includes a positive electrode, a negative electrode, a separator interposed between a main surface of the positive electrode and a main surface of the negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material and a first polymer compound. The negative electrode includes a negative electrode active material layer. The negative electrode active material layer includes a negative electrode active material and a second polymer compound. The negative electrode active material includes a first negative electrode active material including silicon. The second polymer compound includes an NVA polymer containing N-vinylacetamide as a monomer. The separator includes a base material, a positive-electrode-side coating layer on the positive electrode side of the base material, and a negative-electrode-side coating layer on the negative electrode side of the base material. The positive-electrode-side coating layer includes the first polymer compound. The negative-electrode-side coating layer includes the NVA polymer.",
  "title": "SECONDARY BATTERY"
}