4results about How to "Diffusion rate is fast" patented technology

The application discloses a low-temperature Prussian white sodium ion battery, which comprises a positive electrode, an electrolyte and a negative electrode, the positive electrode is selected from a Prussian white positive electrode material; the electrolyte comprises a sodium salt, an organic solvent and an electrolyte additive; the concentration of the sodium salt in the electrolyte is 0.4-0.7 mol / L; and the electrolyte additive comprises a fluorinated carbonate and a fluorinated acetate. The low-temperature Prussian white sodium ion battery disclosed by the application has high specific capacity and long cycle life at a low temperature of-20 DEG C.

The invention relates to the technical field of battery materials, in particular to a preparation method of an alpha-zirconium phosphate coated ternary positive electrode material, which comprises the following steps: S1, dissolving and mixing a zirconium source and a phosphorus source, and then introducing into preparation equipment for gelation reaction to obtain a precursor; wherein the preparation equipment detects the viscosity change of reactants in the gelation reaction process in real time, the gelation reaction process is divided into different stages according to the viscosity change, and the corresponding stirring speed and temperature are adjusted according to the different stages; s2, outputting the precursor obtained in S1 from preparation equipment, washing and drying, and calcining at high temperature for 2-6 hours to obtain the alpha-zirconium phosphate nanosheet; and S3, mixing and ball-milling the alpha-zirconium phosphate nanosheet and the ternary positive electrode material in an ethanol medium, and drying to obtain the alpha-zirconium phosphate coated ternary positive electrode material. According to the preparation method of the alpha-zirconium phosphate coated ternary positive electrode material, provided by the invention, the alpha-zirconium phosphate coated ternary positive electrode material can be simply and quickly obtained, and the preparation method has a good application value.

The invention discloses a multi-channel double-layer membrane blood cell interference resisting electrochemical test piece and application thereof, and belongs to the technical field of electrochemical test pieces, the multi-channel double-layer membrane blood cell interference resisting electrochemical test piece comprises a base material, a sensing electrode, a top sealing layer and a double-layer membrane structure composed of an enzyme reaction membrane layer and a blood cell filtering membrane layer, and the double-layer membrane structure is located above the sensing electrode. According to the invention, a completely independent multi-channel microfluidic system is realized through physical structure partition, and a three-dimensional bulge structure is arranged at a blood inlet of each microfluidic channel, so that the blood suction starting speed and the sample entering efficiency are remarkably improved, and the problems of unstable blood suction efficiency and difficulty in avoiding cross interference of the existing multi-channel design are solved on the structural aspect. According to the invention, a double-layer membrane structure is adopted, a physical filter membrane layer with a stable aperture structure is constructed by blending PU / PVA, and the physical filter membrane layer is superposed on a glucose dehydrogenase reaction layer, so that red blood cells are prevented from entering a detection area from the source, and the influence of HCT on signals is reduced.

This invention provides a method for preparing perovskite titanate materials with preferred growth on the (311) crystal plane and its application. The structural formula of the perovskite titanate material is A. x B y TiO4, wherein element A is at least one of Na, Ca, and La, and element B is at least one of Y, Ni, and Sr, and 0 < x ≤ 1, 0 < y ≤ 1. The perovskite titanate material prepared by this invention has a low crystal defect content, and the (311) crystal plane is the dominant crystal plane. The (311) direction is the direction of rapid diffusion of lithium ions in the bulk structure of the perovskite titanate material. The perovskite titanate material dominated by the (311) crystal plane has a short ion diffusion distance and a fast overall lithium ion diffusion rate, thereby improving the rate performance of the material.