{
  "$type": "site.standard.document",
  "description": "The present invention relates to a battery case having excellent durability and a secondary battery including the same, wherein the battery case according to the present invention includes a first polymer layer, a second polymer layer, and a gas barrier layer disposed between the first polymer…",
  "path": "/patents/1416784",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0585",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "The present invention relates to a battery case having excellent durability and a secondary battery including the same, wherein the battery case according to the present invention includes a first polymer layer, a second polymer layer, and a gas barrier layer disposed between the first polymer layer and the second polymer layer, and includes at least one cup portion curved in one direction, wherein a K value according to Equation (1) is 63.0 or more. K=P/C+50DIn Equation (1),P is a thickness value of the battery case which is measured in µm,C is a depth value of the cup portion which is measured in mm, andD is a ratio of a thickness of the gas barrier layer to a total thickness of the first polymer layer and the second polymer layer.",
  "title": "BATTERY CASE AND SECONDARY BATTERY COMPRISING SAME"
}