{
  "$type": "site.standard.document",
  "description": "The present application discloses a button battery, comprising a negative electrode cover, a positive electrode case, a sealing ring, a positive electrode, a separating diaphragm, a negative electrode and electrolyte, the sealing ring is hermetically connected with the negative electrode cover and…",
  "path": "/patents/1423943",
  "publishedAt": "2023-07-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/06",
    "YICHANG POWER GLORY TECH CO LTD [CN]"
  ],
  "textContent": "The present application discloses a button battery, comprising a negative electrode cover, a positive electrode case, a sealing ring, a positive electrode, a separating diaphragm, a negative electrode and electrolyte, the sealing ring is hermetically connected with the negative electrode cover and the positive electrode case and makes the negative electrode cover and the positive electrode case form a sealing cavity, and the positive electrode, the separating diaphragm, the negative electrode and the electrolyte are arranged in the sealing cavity; the button battery further comprises a base arranged in the positive electrode case; the base comprises an outer ring wall, an inner ring wall, and a top wall, and the outer ring wall, the inner ring wall and the top wall form an annular cavity, and the top wall abuts against the sealing ring; the annular cavity is provided with a first through hole for entering and exiting of electrolyte and/or gas; the positive electrode is partially located in an inner ring of the base, and the positive electrode has a boss structure and/or an end face of the positive electrode is provided with a chamfer. By providing a base with an annular cavity and a positive electrode with a boss structure and/or a chamfered end face, etc., the button battery can increase the capacity and the discharge power of the battery, expand the operating temperature range of the battery, improve the whole stability, storage, consistency and anti-leakage performance of the battery, and extend the battery life.",
  "title": "BUTTON BATTERY AND PREPARATION METHOD THEREFOR"
}