{
  "$type": "site.standard.document",
  "description": "A cylindrical battery including an electrode body in which a positive electrode plate and a negative electrode plate with a separator between the electrodes are wound; an electrolyte; a bottomed cylindrical exterior can that houses the electrode body and the electrolyte; and an opening sealing…",
  "path": "/patents/1260715",
  "publishedAt": "2020-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M2/022",
    "SANYO Electric Co., Ltd."
  ],
  "textContent": "A cylindrical battery including an electrode body in which a positive electrode plate and a negative electrode plate with a separator between the electrodes are wound; an electrolyte; a bottomed cylindrical exterior can that houses the electrode body and the electrolyte; and an opening sealing body. The opening sealing body includes a terminal cap, a valve disc included in a current cut-off mechanism, and a washer having an opening at a center, interposed between the terminal cap and the valve disc, the washer has a recessed section formed in surroundings of the opening and a planar section disposed in surroundings of the recessed section on each of surfaces at both ends in a thickness direction of the washer, and boundary lines each between the recessed section and the planar section of each of the surfaces of the washer are arranged to be overlapped with each other in the thickness direction.",
  "title": "CYLINDRICAL BATTERY"
}