{
  "$type": "site.standard.document",
  "description": "A lithium ion secondary battery which meets the requirement [1] of satisfying the formulae (a) to (c) or the requirement [2] of satisfying the formulae (b), (d), and (e): (a) 5 ≤ A ≤ 25, (b) 10 ≤ B ≤ 60, (c) 40 ≤ 2A + B ≤ 90, (d) 0.2 ≤ C ≤ 1.2, and (e) -80 ≤ 200C - 3B ≤ 150, wherein A (µm)…",
  "path": "/patents/991302",
  "publishedAt": "2013-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "NEC ENERGY DEVICES LTD [JP]"
  ],
  "textContent": "A lithium ion secondary battery which meets the requirement [1] of satisfying the formulae (a) to (c) or the requirement [2] of satisfying the formulae (b), (d), and (e): (a) 5 ≤ A ≤ 25, (b) 10 ≤ B ≤ 60, (c) 40 ≤ 2A + B ≤ 90, (d) 0.2 ≤ C ≤ 1.2, and (e) -80 ≤ 200C - 3B ≤ 150, wherein A (µm) represents an average particle size of a positive electrode active material; B (vol.%) represents a volume concentration of a fluorinated ether in a nonaqueous electrolyte solution; and C (m/g) represents a specific surface area of the positive electrode active material.",
  "title": "LITHIUM ION SECONDARY BATTERY"
}