{
  "$type": "site.standard.document",
  "description": "Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; a porous separator disposed between the positive electrode and the negative electrode; a spacer disposed between the separator and at least one of the positive electrode and the negative electrode; and a…",
  "path": "/patents/1381171",
  "publishedAt": "2026-04-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/449",
    "Panasonic Intellectual Property Management Co., Ltd."
  ],
  "textContent": "Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; a porous separator disposed between the positive electrode and the negative electrode; a spacer disposed between the separator and at least one of the positive electrode and the negative electrode; and a non-aqueous electrolyte having lithium ion conductivity, wherein, on the negative electrode, lithium metal is deposited during charging, and the lithium metal is dissolved during discharging, the spacer includes insulating particles, a binder resin, and a thickener, the insulating particles have a median diameter in a volume-based particle size distribution, of 1.0 μm to 10 μm, the binder resin includes a polymer compound having a phthalic acid skeleton, and the thickener includes at least one selected from the group consisting of carboxymethyl cellulose and a carboxymethyl cellulose salt. Accordingly, it is possible to obtain a lithium secondary battery including a spacer with excellent physical properties.",
  "title": "LITHIUM SECONDARY BATTERY, SPACER FOR LITHIUM SECONDARY BATTERY, SPACER MATERIAL, AND INTEGRATED PRODUCT OF SEPARATOR AND SPACER FOR LITHIUM SECONDARY BATTERY"
}