{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreig3f2nauihsipjxx36ea3vjqgyhefl6j72qdoxz3fho56awnsvxpi"
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    "mimeType": "image/png",
    "size": 80303
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  "description": "Disclosed is a secondary battery capable of obtaining high energy density and having improved charging/discharging cycle characteristic and shelf stability characteristic. A rolled electrode body obtained by rolling strip-shaped positive and negative electrodes via separators is provided on the…",
  "path": "/patents/1112188",
  "publishedAt": "2001-06-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "SONY CORP [JP]"
  ],
  "textContent": "Disclosed is a secondary battery capable of obtaining high energy density and having improved charging/discharging cycle characteristic and shelf stability characteristic. A rolled electrode body obtained by rolling strip-shaped positive and negative electrodes via separators is provided on the inside of a battery can. The negative electrode contains silicon or a silicon compound. The separators are impregnated with a liquid electrolyte. The electrolyte contains LiN(CF3SO2)2, LiC(CF3SO2)3, or the like and concentration of at least one of LiPF6, LiBF4, and LiAsF6 in the electrolyte is lower than 0.1 mol/dm. Production of hydrogen fluoride causing decomposition of LiPF6, LiBF4, or LiAsF6 can be suppressed and the concentration of hydrogen fluoride in the electrolyte can be suppressed. Thus, deactivation of the negative electrode is prevented.",
  "title": "Secondary battery"
}