{
  "$type": "site.standard.document",
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  "description": "A positive active material for a rechargeable lithium battery comprising a manganese oxide-based solid solution is disclosed. The positive material includes primary particles and secondary particles formed of agglomerated primary particles having a particle diameter D50 (diameter of particles when…",
  "path": "/patents/973567",
  "publishedAt": "2014-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01G53/62",
    "SAMSUNG SDI CO LTD [KR]"
  ],
  "textContent": "A positive active material for a rechargeable lithium battery comprising a manganese oxide-based solid solution is disclosed. The positive material includes primary particles and secondary particles formed of agglomerated primary particles having a particle diameter D50 (diameter of particles when the cumulative volume of the particles reaches 50 vol%) in the range of 1 µm to 5 µm, a particle diameter D90 (diameter of particles when the cumulative volume of the particles reaches 90 vol%) of less than 8 µm, and a crystallite diameter less than or equal to 150 nm. Particle diameters D50, D90 and crystallite size falling within said ranges are achieved by controlling, among others, the agitation speed (specifically in the range 500-2000 rpm) and the agitation time (specifically in the range 1-4 hours) when manufacturing the hydroxide through co-precipitation, prior to the addition of a lithium compound. The positive electrode for a rechargeable lithium battery including said active material is also disclosed.",
  "title": "Positive active material, positive electrode and rechargeable lithium battery including same"
}