▎ 摘 要
NOVELTY - Lithium carbon particle has porous particle as a carrier. The porous particle is micron-scale particles formed by interweaving carbonaceous skeletons with nano-sized pores inside and on the surface. The carbonaceous skeleton includes a crystallized carbon skeleton (1) and an amorphous carbonaceous layer wrapped on the surface of the crystallized carbon skeleton. The non-porous portion on the surface of the porous particle is also covered with an amorphous carbonaceous layer, and the amorphous carbonaceous layer on the surface of the particle and the amorphous carbonaceous layer (2) on the surface of the crystallized carbon skeleton are formed of the same material, and metallic lithium (3) filling the pores of the porous particle. USE - Lithium carbon particle. ADVANTAGE - The lithium carbon particle has conductive three-dimensional carbon skeleton structure inside, which can provide a reserved space for metal lithium deposition, relieve the volume expansion of metal lithium negative electrodes, and the conductivity of the skeleton structure can reduce the current density on the electrode surface and reduce the growth of lithium dendrites, and has stable structure, which is conducive to the preparation of a long-life cycle electrode. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included fora method for preparing lithium carbon particle, which involves: (a) forming a slurry with an organic binder, a filler, a crosslinking agent and a solvent, where the filler includes a crystalline carbon skeleton material, an organic filler and an optional inorganic filler; (b) atomizing, granulating the obtained slurry to obtain a material; (c) heating the obtained material at a temperature ranging from 300-1200℃ to obtain porous particles after cooling; (d) stirring, and mixing the obtained porous particle with molten lithium to obtain lithium carbon particle. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the lithium carbon particle. 1Crystallized carbon skeleton 2Amorphous carbonaceous layer 3Metallic lithium