{
  "$type": "site.standard.document",
  "description": "It is the object of the invention to provide a cathode material capable of improving charge-and-discharge cycle characteristics and a battery using the cathode material. A rolled electrode body (20) is provided, the rolled electrode body being comprised of a strip-shaped cathode (21) and a…",
  "path": "/patents/1091334",
  "publishedAt": "2003-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01G51/42",
    "SONY CORP [JP]"
  ],
  "textContent": "It is the object of the invention to provide a cathode material capable of improving charge-and-discharge cycle characteristics and a battery using the cathode material. A rolled electrode body (20) is provided, the rolled electrode body being comprised of a strip-shaped cathode (21) and a strip-shaped anode (22) with a separator (23) sandwiched in-between. Lithium metal precipitates on the anode (22) in the middle of charge, and a capacity of the anode (22) is expressed by a sum of a capacity component obtained through insertion and extraction of lithium and a capacity component obtained through precipitation and dissolution of lithium. The cathode (21) includes lithium-containing oxide as the cathode material capable of insertion and extraction of lithium, which is expressed in a chemical formula LiMIMIIO. MI corresponds to Co or Ni, and MII corresponds to a transition metal element except for MI. Therefore, charge-and-discharge cycle characteristics can be improved.",
  "title": "POSITIVE ELECTRODE MATERIAL AND BATTERY COMPRISING IT"
}