{
  "$type": "site.standard.document",
  "description": "The present invention provides a solution to the problem of degradation of the polymeric binder material used in lithium secondary cells based on a reduction in number of active sites in the copolymer. The battery of the present invention comprises a positive electrode element, a negative electrode…",
  "path": "/patents/1109397",
  "publishedAt": "2001-10-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "VALENCE TECHNOLOGY INC [US]"
  ],
  "textContent": "The present invention provides a solution to the problem of degradation of the polymeric binder material used in lithium secondary cells based on a reduction in number of active sites in the copolymer. The battery of the present invention comprises a positive electrode element, a negative electrode element, and a separator membrane element disposed between said electrode elements, at least one of said electrode elements comprising a polymeric binder intermingled with an active material, said polymeric binder comprising a copolymer of vinylidene fluoride VdF, at least one other fluorinated monomer (OFM), and cross-linking agent for said copolymer.",
  "title": "Lithium ion cells with improved thermal stability"
}