▎ 摘　　要

NOVELTY - The particulate has primary particle of cathode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate primary particle, and in which single or multiple graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material. The first graphene material is the same as or different from second graphene material, and in which first graphene and second graphene material is each in an amount from 0.01% to 20% by weight and optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of particulate. USE - Graphene-embraced particulate for cathode electrode of lithium batteries (all claimed). Uses include but are not limited to lithium-ion battery, lithium metal secondary battery, lithium-sulfur battery, lithium-air battery, lithium-selenium battery, sodium-ion battery, sodium metal secondary battery, sodium-sulfur battery and sodium-air battery. ADVANTAGE - Provides overlapping graphene sheets which slide over one another when the primary particle expands or shrinks, thus preventing repeated direct exposure of the primary particle surface and the solid-electrolyte interface coated to the surrounding electrolyte, which eliminates repeated breakage and re-formation of solid-electrolyte interface during repeated charges/discharges, and in effect, the battery cell containing secondary particles featuring such a multi-level graphene protection strategy can exhibit an exceptionally long cycle life, making it suitable to industrial scale production in a continuous energy impact device. Provides a strikingly simple, fast, scalable, environmentally benign, and cost-effective process that avoids essentially all of the drawbacks associated with prior art processes of producing graphene sheets and obviates the need to execute a separate, additional process to combine the produced graphene sheets and particles of an electrode active material anode or cathode active material, together to form a composite or hybrid electrode active material. DETAILED DESCRIPTION - The cathode active material is selected from an inorganic material, an organic or polymeric material, a metal oxide/phosphate/sulfide. The first graphene material contains pristine graphene or a first chemically functionalized graphene, and second graphene material is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, a second chemically functionalized graphene, or a combination of given graphene, in which first chemically functionalized graphene is different than the second chemically functionalized graphene. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view showing the presently invented process for producing graphene-embraced or graphene-encapsulated electrode active material particles via an energy impacting apparatus.