3results about How to "Comprehensive area" patented technology

The present application relates to the technical field of sodium battery materials, in particular to a sodium supplement coating based on a spiral iron-carbon composite material and a preparation method thereof, a spiral polypyrrole template is synthesized by a chiral template method, Fe3C@CNS spiral carbon composite material rich in Fe3C nanocrystals and iron single-atom sites is prepared through iron loading, sulfidation and high-temperature pyrolysis, Na2C2O4@Fe3C@CNS composite material is prepared by highly dispersing sodium oxalate on the surface and in the pores of the spiral carbon composite material through a recrystallization method, finally, a slurry is prepared by mixing the Na2C2O4@Fe3C@CNS composite material with a conductive agent and a binder, and the slurry is coated on the surface of an electrode to form a functional sodium supplement coating. The sodium supplement coating based on the spiral iron-carbon composite material and the preparation method thereof solve the problems of poor interface stability and first-cycle irreversible sodium loss of existing sodium ion batteries, realize efficient sodium pre-activation and interface synergistic regulation, and improve the comprehensive performance of the battery.

The invention relates to the technical field of lithium manganese iron phosphate materials, in particular to modified lithium manganese iron phosphate, a preparation method thereof, a positive electrode material, a battery and application. The modified lithium manganese iron phosphate is prepared from the following raw materials: lithium manganese iron phosphate, C7H7ZnCl and silane; the mass ratio of the lithium manganese iron phosphate to the C7H7ZnCl to the silane is 1: (0.01 to 0.06): (0.01 to 0.08). According to the modified lithium manganese iron phosphate provided by the invention, the raw material contains the silane, and the silicon dioxide obtained by sintering the silane is used as a supporting structure of the LFMP, so that the thermal stability of the LFMP is improved.

The application discloses a treatment method of fly ash solidified by oil-based rock debris desorption residues and a fly ash solidified body, and comprises the following steps: uniformly stirring fly ash and oil-based rock debris desorption residues to obtain a mixture in an adsorption state; adding a heavy metal chelating agent and a soluble salt complexing and cementing agent into the mixture in sequence to obtain a stabilized mixture; and adding cement, stones and water into the stabilized mixture in sequence, uniformly stirring and solidifying to obtain the fly ash solidified body. The application reduces the solidification cost, strengthens the stable solidification treatment of pollutants, improves the compressive strength after solidification, and reduces the lead leaching amount and the total amount of soluble salts.