{
  "$type": "site.standard.document",
  "description": "A negative electrode for a lithium secondary cell having a collector composed of an electroconductive metal foil and, provided on the surface thereof, an active material layer containing active material particles containing silicon and/or a silicon alloy and a binder, characterized in that the…",
  "path": "/patents/1077468",
  "publishedAt": "2005-06-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "SANYO ELECTRIC CO [JP]"
  ],
  "textContent": "A negative electrode for a lithium secondary cell having a collector composed of an electroconductive metal foil and, provided on the surface thereof, an active material layer containing active material particles containing silicon and/or a silicon alloy and a binder, characterized in that the binder has mechanical characteristics of a tensile strength of 50 N/mm or more, an elongation at break of 10 % or more, a strain energy density of 2.5x10 J/mm or more and a coefficient of elasticity of 10000 N/mm or less, and preferably characterized in that the collector has mechanical characteristics of a tensile strength of 80 N/mm or more, a proportional limit 30 N/mm or more, an elongation at break of 1.0 % or more and an elastic elongation limit of 0.03 % or more.",
  "title": "NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL AND LITHIUM SECONDARY CELL"
}