{
  "$type": "site.standard.document",
  "description": "A method for recovering valuable materials from lithium ion secondary batteries includes: a step of performing a heat treatment on a lithium ion secondary battery to obtain a heat-treated product; a first classification step of classifying a crushed product is obtained by crushing the heat-treated…",
  "path": "/patents/1385254",
  "publishedAt": "2026-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B03B9/06",
    "DOWA ECO-SYSTEM CO., LTD."
  ],
  "textContent": "A method for recovering valuable materials from lithium ion secondary batteries includes: a step of performing a heat treatment on a lithium ion secondary battery to obtain a heat-treated product; a first classification step of classifying a crushed product is obtained by crushing the heat-treated product to obtain a coarse-particle product and a small-particle product; a step of classifying a ground product obtained by grinding the small-particle product at a classification point smaller than a classification point of the first classification step to obtain a coarse-particle product and a fine-particle product; a step of subjecting the fine-particle product to magnetic separation to obtain a magnetic component and a non-magnetic component ; a step of subjecting the non-magnetic component to magnetic separation to obtain a magnetic component and a non-magnetic component ; and a step of recovering valuable materials from the magnetic components and",
  "title": "METHOD FOR RECOVERING VALUABLE MATERIALS FROM LITHIUM ION SECONDARY BATTERIES"
}