{
  "$type": "site.standard.document",
  "description": "Non-graphitizable carbon, a negative electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery are disclosed. In the non-graphitizable carbon, a strain ε determined by a method in which an X-ray diffraction pattern is subjected to Rietveld analysis to obtain a profile and…",
  "path": "/patents/1389677",
  "publishedAt": "2026-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/583",
    "JFE CHEMICAL CORPORATION"
  ],
  "textContent": "Non-graphitizable carbon, a negative electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery are disclosed. In the non-graphitizable carbon, a strain ε determined by a method in which an X-ray diffraction pattern is subjected to Rietveld analysis to obtain a profile and the profile is used to determine a strain ε by a Williamson-Hall method is 0.081 to 0.120, and a lattice plane distance d002 corresponding to 002 reflection as obtained by subjecting the X-ray diffraction pattern to Rietveld analysis is 0.360 to 0.370 nm.",
  "title": "HARDLY GRAPHITIZABLE CARBON, MIXED CARBON POWDER, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY"
}