2 results about "Lithium molybdate" patented technology

The application discloses a kind of porous graphite, preparation method and application of silicon-carbon composite material, belong to battery material technical field.The preparation method is: metal, petroleum coke and its dopant are mixed uniformly, pre-carbonization, graphitization, obtain graphite material, then it is etched to pore by plasma technology, then activation, obtain porous graphite;Finally by silane cleavage method, pass in silane mixed gas and carry out nanometer silicon deposition, passivation, then the obtained material is added to the solution of lithium molybdate and lithium sulfonate and coated, spray drying, obtain double lithium compound coated silicon-carbon composite material.The obtained material utilizes the characteristics that porous graphite itself electronic conductivity is high, and the outer layer coated double lithium salt structure improves ionic conductivity and its first efficiency, and plays the synergistic effect between the two, reduces expansion, improves cycle performance.

The method for preparing adjustable-size lithium molybdate powder by reactive ball milling uses Li2MoO4 as the chemical formula, with a purity ≥99.5% and a particle size satisfying 0.1μm≤D50≤50μm. The powder is white and comprises six steps and conditions: batching, ball milling, sieving and drying, annealing, and pulverizing. This method offers advantages such as precise control of powder particle size, significantly reduced preparation time, simplified preparation process, and improved product yield.