{
  "$type": "site.standard.document",
  "description": "The lithium secondary battery provided by the present invention includes a negative electrode having a negative electrode collector and a negative electrode layer including a negative electrode active material and formed on the surface of the negative electrode collector, and is characterized in…",
  "path": "/patents/999667",
  "publishedAt": "2012-08-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "The lithium secondary battery provided by the present invention includes a negative electrode having a negative electrode collector and a negative electrode layer including a negative electrode active material and formed on the surface of the negative electrode collector, and is characterized in that the negative electrode layer comprises a negative electrode active material layer composed primarily of a negative electrode active material, and an insulating layer composed primarily of an insulating filler and formed on the negative electrode active material layer, and the ratio (Sb/Sa) of a pore specific surface area of the insulating layer (Sb: m 2 /g) to a pore specific surface area of the negative electrode active material layer (Sa: m 2 /g), as measured by a mercury porosimeter, satisfies the relationship 1.2 ¤ (Sb/Sa) ¤ 2.5.",
  "title": "LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR"
}