2results about How to "Increased charge storage capacity" patented technology

The application discloses a kind of high specific capacity electrode foil and its production process, belong to aluminum electrolytic capacitor technical field, by carbon-coated aluminum powder obtained by glucose pyrolysis coating, using sol-gel-hydrothermal method to synthesize dielectric nanosphere powder, again through sol-precipitation method to generate dielectric nanosphere as the core of composite dielectric core-shell nanosphere powder, again using manganese metal organic framework deposition on the surface of composite dielectric core-shell nanosphere powder and calcination, get sheet manganese oxide coated high dielectric nanosphere, through sheet manganese oxide, core-shell nanosphere and carbon layer on the surface of carbon-coated aluminum powder three synergistic slip, to give electrode foil flexibility, can meet the needs of winding in processing and capacitor assembly;When calcining, manganese ions will enter the lattice of composite dielectric core-shell nanosphere to replace titanium ions, produce negative center, so that dielectric constant increases, improve the charge storage capacity of capacitor, and produce oxygen vacancy, reduce dielectric loss, improve the overall performance of capacitor.

This invention discloses the preparation and application of a porous bismuth ferrite material. The preparation method includes the following steps: dissolving bismuth and iron salts in an acid solution to obtain a metal solution; adding a complexing agent and a pore-forming agent to the metal solution and mixing to obtain a precursor solution; heating the precursor solution to obtain a wet gel; drying the wet gel to obtain a dry gel; and calcining the dry gel under an inert atmosphere containing 6-10% oxygen to obtain the porous bismuth ferrite material. The porous bismuth ferrite electrode material of this invention not only solves the structural defects of traditional porous bismuth ferrite materials, such as small pore volume and insufficient utilization of active sites, but also fully utilizes its membrane capacitance characteristics and bimetallic synergistic effect, showing excellent application prospects in the field of capacitive deionization and chlorine removal.