{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "To provide a negative electrode for a secondary battery and a secondary battery having a large energy density and a capacity less likely to reduce even after repeated charging and discharging, and manufacturing methods thereof The above-described problem is solved by a negative electrode for a…",
  "path": "/patents/1269714",
  "publishedAt": "2020-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/1395",
    "THE UNIVERSITY OF TOKYO"
  ],
  "textContent": "To provide a negative electrode for a secondary battery and a secondary battery having a large energy density and a capacity less likely to reduce even after repeated charging and discharging, and manufacturing methods thereof The above-described problem is solved by a negative electrode for a secondary battery () comprising a negative electrode active material layer (′) including at least a silicon-based active material and a binder, and a negative electrode current collector () having a structural form in which the silicon-based active material has an amorphous region including lithium and island-shaped lithium carbonate is distributed in the amorphous region. This negative electrode for a secondary battery () is manufactured by a method including a step of forming a negative electrode active material layer (′) including a Si-based active material and a binder, and a predoping step of bringing an electrolytic solution () containing Li into contact with the negative electrode active material layer (′), applying pressure, and introducing Li ions by an electrochemical method.",
  "title": "NEGATIVE ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND MANUFACTURING METHODS THEREOF"
}