3results about How to "Enhanced interface energy" patented technology

The invention provides a preparation method of a metal lithium powder composite electrode containing a BIMSM binder, and the method comprises the following steps: S1, dissolving a brominated isobutylene-p-methylstyrene copolymer in a first organic solvent to obtain a pre-coating solution; s2, in an inert atmosphere, adding metal lithium powder into the pre-coating solution for dispersing and mixing, and then removing the solvent and drying to obtain modified metal lithium powder coated with a BIMSM layer on the surface; s3, dispersing the modified metal lithium powder, butadiene styrene rubber, a conductive agent and a cross-linking agent in a second organic solvent, and uniformly mixing to obtain electrode slurry; and S4, coating the surface of a current collector with the electrode slurry, heating, drying and rolling to obtain the metal lithium powder composite electrode. The metal lithium powder composite electrode prepared by the invention effectively inhibits volume expansion and dendritic crystal growth of metal lithium, and the cycle life and coulombic efficiency of the battery are remarkably improved.

This invention belongs to the field of lithium-sulfur battery technology, specifically relating to an electrolyte containing organic potassium salts, its preparation method, and its application. The electrolyte comprises a conductive lithium salt, an ether solvent, a primary additive, and secondary additives; the primary additive is an organic potassium salt. By adding a potassium-ion-containing additive to the electrolyte, this invention can form an electrostatic shielding effect at lithium protrusions, promoting uniform lithium ion deposition, improving lithium surface morphology, reducing lithium dendrite growth, and effectively protecting lithium at the resulting solid-electrolyte interface. This inhibits direct contact between the electrolyte and the negative electrode, prevents corrosion of the lithium negative electrode by soluble polysulfides, and reduces the loss of active sulfur.

This invention belongs to the field of low-carbon alkane energy value-added and carbon neutrality technology, specifically involving nickel-based physicochemically confined functional catalysts and their large-scale preparation and applications. The catalyst of this invention is prepared using a microemulsion method and is a hollow nanotube-shaped coated shell anchoring intermetallic compound Ni-MO. x A physical-chemical dual-confined catalyst (M is La, Ce, Mg or V) combines the physical confinement effect of nanoreactors, the electronic structure of intermetallic compound nanoparticles, and the nano-quantum effect of intermetallic compounds (including single atoms, clusters or sub-nano islands) to promote the synthesis of syngas from low-carbon alkanes in conjunction with CO2 reforming.