1results about How to "Small distribution" patented technology

The application belongs to the technical field of sodium ion batteries, and discloses a preparation method of a double-site co-doped sodium ion battery positive electrode material. The method comprises the following steps: (1) according to the molar ratio of each metal element in the chemical formula of the target product, corresponding metal salts are weighed and dissolved in an ethanol solution to obtain a metal salt solution; oxalic acid is dissolved in an ethanol solution to obtain an oxalic acid solution; (2) under ultrasonic conditions, the metal salt solution is added dropwise into the oxalic acid solution, and stirring is continuously performed; after the metal salt solution is completely added dropwise, ultrasonic treatment is continuously performed; the suspension treated by ultrasonic treatment is placed in an oven for drying, and the powder obtained by drying is ground; (3) the ground powder is placed in a corundum box and then placed in a tube furnace for sintering; first, heating is performed to 500 DEG C for heat preservation; after cooling, the tablet is taken out, the pressed tablet is continuously placed in the tube furnace, heating is performed to 900 DEG C for heat preservation, after cooling, the tablet is taken out and ground, and the target product is obtained.