{
  "$type": "site.standard.document",
  "description": "Provided is a carbon material for a negative electrode of a lithium ion secondary battery, which has a small particle diameter, high initial charge-discharge efficiency, and a high 2C discharge rate, and achieves both input-output characteristics and durability. [0002] Disclosed is a carbon…",
  "path": "/patents/1416513",
  "publishedAt": "2023-08-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B32/05",
    "JFE CHEMICAL CORP [JP]"
  ],
  "textContent": "Provided is a carbon material for a negative electrode of a lithium ion secondary battery, which has a small particle diameter, high initial charge-discharge efficiency, and a high 2C discharge rate, and achieves both input-output characteristics and durability. [0002] Disclosed is a carbon material for a negative electrode of a lithium ion secondary battery, in which a 50% by volume particle diameter (D) in a cumulative frequency distribution is 1.0 µm or more and less than 5.0 µm, a specific surface area (S) by a BET method is 6.5 m/g or less, a tap density (D) is 0.70 g/cm or more, and a Raman R value obtained by Raman spectroscopy is more than 0.100 and less than 0.300, and the carbon material has a carbonaceous film on a surface of graphitized material particles of a mesophase microbead.",
  "title": "NEGATIVE ELECTRODE CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD THEREFOR, AND NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING SAME"
}