{
  "$type": "site.standard.document",
  "description": "A welding inspection apparatus and a welding inspection method in which in a tab-less cylindrical battery cell having a jelly roll-type electrode assembly, a current collection plate welded to an uncoated part of the electrode assembly is welded to an electrode terminal that is fixed in a way that…",
  "path": "/patents/1372883",
  "publishedAt": "2025-01-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H04N23/555",
    "LG ENERGY SOLUTION, LTD."
  ],
  "textContent": "A welding inspection apparatus and a welding inspection method in which in a tab-less cylindrical battery cell having a jelly roll-type electrode assembly, a current collection plate welded to an uncoated part of the electrode assembly is welded to an electrode terminal that is fixed in a way that penetrates a closed surface provided in one end portion of a cylindrical battery can which accommodates the electrode assembly, from the inside of a hollow hole part of the electrode assembly, to see a welding state. The battery can is fixed by a jig, and the welding inspection apparatus, as a vision camera inspection apparatus with an endoscope part or a telephoto lens, photographs a welding portion and the inner surface of the hollow hole part, to see failure caused by weak welding, over welding or weld spatter.",
  "title": "WELDING INSPECTION APPARATUS"
}