Equipment for producing nickel-cobalt-manganese ternary precursor

Abstract

The invention discloses equipment for producing a nickel-cobalt-manganese ternary precursor. The equipment comprises a reaction kettle body, wherein the outer side of the upper surface of the reactionkettle body is provided with an alkali liquor inlet pipe, an ammonium hydroxide inlet pipe and a metal salt inlet pipe respectively, the middle of the upper surface of the reaction kettle body is provided with a motor, an output shaft of the motor penetrates through the reaction kettle body and is provided with a stirring shaft, the upper portion of the outer side of the stirring shaft is symmetrically provided with fixing rods, the outer side of each fixing rod is provided with a plurality of scraping rods, the middle of the outer side of the stirring shaft is uniformly provided with four stirring blades, and the outer side of each stirring blade is provided with a plurality of protruding thorns. The equipment for producing the nickel-cobalt-manganese ternary precursor has the advantagesthat the rotation of the motor drives the stirring shaft to rotate, so that the effect is achieved that the scraping rods remove foam on the surface of a reaction liquid, reaction medium foam generated by stirring is effectively broken, crystals do not aggregate easily, all-around overturn is performed so that each crystal nucleus grows separately, and therefore compact spherical crystals withcontrollable sizes can be generated.

Description

technical field [0001] The invention belongs to the technical field of production equipment for nickel-cobalt-manganese ternary precursors, and in particular relates to equipment for producing nickel-cobalt-manganese ternary precursors. Background technique [0002] Nickel-cobalt-manganese ternary materials are widely used in lithium-ion batteries of digital electronic products, electric tools, electric bicycles, etc. At present, the production method of nickel-cobalt-manganese ternary precursor is mainly prepared by adding metal salt, liquid caustic soda and ammonia water into a reaction kettle at the same time. [0003] When the existing nickel-cobalt-manganese ternary precursor production equipment is in use, due to the large amount of gas generated during the reaction, the surface of the reaction solution will be covered with foam, which will affect the progress of the reaction; at the same time, the internal bubbles of the reaction solution make it impossible for the re...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of equipment of producing nickel-cobalt-manganese ternary precursor, to solve the above-mentioned background technology proposed existing nickel-cobalt-manganese ternary precursor production equipment in use, because a large amount of gas produced during the reaction will cause problems The surface of the reaction solution is covered with foam, which affects the progress of the reaction; at the same time, the internal bubbles of the reaction solution make the reactants unable to fully contact and affect the reaction rate; and after long-term use, a large amount of solid crystalline dirt is easy to accumulate at the bottom of the reaction kettle , causing troubles that are difficult to clean and affecting the service life; in addition, there are often problems of crystal scaling and excessive particle size caused by the deposition of materials in the dead corner of the spoiler

Images