Graphene-Enhanced cathode materials for lithium batteries

  • US 20120058397A1
  • Filed: 09/07/2010
  • Published: 03/08/2012
  • Est. Priority Date: 09/07/2010
  • Status: Active Grant
First Claim
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1. A nano graphene-enhanced particulate for use as a lithium battery cathode active material, wherein said particulate is formed of a single or a plurality of graphene sheets and a plurality of fine cathode active material particles with a size smaller than 10 μ

  • m, and the graphene sheets and the particles are mutually bonded or agglomerated into said particulate with a graphene sheet embracing said cathode active material particles, and wherein said particulate has an electrical conductivity no less than 10

    4
    S/cm and said graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the cathode active material combined.

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