{
  "$type": "site.standard.document",
  "description": "A secondary battery includes a positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer which is provided on the negative electrode current collector and contains a negative electrode active material, and an…",
  "path": "/patents/1261353",
  "publishedAt": "2020-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/364",
    "MURATA MANUFACTURING CO., LTD."
  ],
  "textContent": "A secondary battery includes a positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer which is provided on the negative electrode current collector and contains a negative electrode active material, and an electrolytic solution. The negative electrode active material includes a carbon-containing material and a silicon-containing material, and a spreading resistance distribution in the negative electrode active material layer is 1.03 or more and 10 or less as measured using a scanning spreading resistance microscope.",
  "title": "SECONDARY BATTERY, BATTERY PACK, ELECTRICALLY DRIVEN VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC TOOL, AND ELECTRONIC DEVICE"
}