{
  "$type": "site.standard.document",
  "description": "Exemplary embodiments relate to a secondary battery which is capable of trapping elution of copper or nickel into ions, the copper and nickel being used as a negative current collector when charging and discharging the battery. The secondary battery according to the exemplary embodiments includes…",
  "path": "/patents/1004740",
  "publishedAt": "2012-02-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "SAMSUNG SDI CO LTD [KR]"
  ],
  "textContent": "Exemplary embodiments relate to a secondary battery which is capable of trapping elution of copper or nickel into ions, the copper and nickel being used as a negative current collector when charging and discharging the battery. The secondary battery according to the exemplary embodiments includes an electrode assembly formed of a positive plate with a positive tab drawn out, a negative plate with a negative tab drawn out, and a separator disposed therebetween; a case to accommodate the electrode assembly and an electrolyte and to be formed with a sealing part; a positive lead tab and a negative lead tab of which one portions are connected to the positive tab and the negative tab, respectively, and another one portions are exposed to the outside of the case; and insulating films attached to one area of the positive lead tab and one area of the negative lead tab, respectively, the areas being in contact with the sealing part of the case, wherein the insulating film attached to the negative lead tab includes a predetermined amount of a ligand (e.g. a nitrile compound).",
  "title": "Secondary battery"
}