{
  "$type": "site.standard.document",
  "description": "A lithium secondary battery including: a positive electrode including a positive electrode current collector, and a positive electrode mixture layer containing a positive electrode active material; a negative electrode including a negative electrode current collector that faces the positive…",
  "path": "/patents/1419470",
  "publishedAt": "2025-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "PANASONIC IP MAN CO LTD [JP]"
  ],
  "textContent": "A lithium secondary battery including: a positive electrode including a positive electrode current collector, and a positive electrode mixture layer containing a positive electrode active material; a negative electrode including a negative electrode current collector that faces the positive electrode; a separator disposed therebetween; and a non-aqueous electrolyte having lithium ion conductivity, wherein the positive electrode active material includes a composite oxide containing lithium and a metal M other than lithium, the metal M containing at least a transition metal, lithium metal deposits on the negative electrode during charge, and the lithium metal dissolves from the negative electrode during discharge, the positive electrode current collector has a first length in a first direction D1 and a second length in a second direction D2 intersecting the first direction, the first length being shorter than the second length, a spacer is provided between the positive electrode and the separator so as to form a space for storing the lithium metal, between the positive and negative electrodes, and a straight line SL is drawable along the first direction D1 so as to pass through three or more points of the spacer.",
  "title": "LITHIUM SECONDARY BATTERY"
}