{
  "$type": "site.standard.document",
  "description": "An object of the invention is to provide such an additive for a lithium secondary battery that improves the battery capacity and the initial efficiency of the lithium secondary battery. In the invention, a fullerene derivative having a group having a formula weight of 6 or more is used as an…",
  "path": "/patents/1076386",
  "publishedAt": "2005-06-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B82Y30/00",
    "MITSUBISHI CHEM CORP [JP]"
  ],
  "textContent": "An object of the invention is to provide such an additive for a lithium secondary battery that improves the battery capacity and the initial efficiency of the lithium secondary battery. In the invention, a fullerene derivative having a group having a formula weight of 6 or more is used as an additive for a lithium secondary battery. A fullerene derivative having a group having a formula weight of 6 or more is contained in an anode material for a lithium secondary battery, an anode for a lithium secondary battery, and a lithium secondary battery using an anode containing the anode material. The group having a formula weight of 6 or more in the fullerene derivative is preferably one selected from the group consisting of an alkali metal atom, a chalcogen atom, a halogen atom, an aliphatic hydrocarbon group, an aromatic hydrocarbon group, a heterocyclic group, a characteristic group containing oxygen, a characteristic group containing sulfur and a characteristic group containing nitrogen.",
  "title": "ADDITIVE TO NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND, USING THE NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY"
}