Preparation method of doping modified spinel type lithium manganate

Abstract

The invention relates to the technical field of preparation methods of lithium manganate and discloses a preparation method of doping modified spinel type lithium manganate. A preparation device comprises a base, wherein a protection box is fixedly mounted in the middle of the top end of the base, large pneumatic cylinders located on two sides of the protection box are fixedly mounted at the top of the base, side blocks are fixedly mounted at tops of the large pneumatic cylinders, and a mixing box is fixedly mounted on the other side of the side blocks. According to the reparation method of doping modified spinel type lithium manganate, by arrangement of large stirring rods, a circular gear, small stirring rods and driven gears, the circular gear rotates to drive the four driven gear to rotate, so that the large stirring rods and the small stirring rods rotate simultaneously and comprehensively and uniformly stir materials in the mixing box, the uniform stirring phenomenon is avoided,and the practicability of the preparation method is improved.

Description

technical field [0001] The invention relates to the technical field of preparation methods of lithium manganate, in particular to a preparation method of doped modified spinel lithium manganate. Background technique [0002] Lithium manganese oxide is one of the more promising lithium ion cathode materials. Compared with traditional cathode materials such as lithium cobalt oxide, lithium manganate has the advantages of abundant resources, low cost, no pollution, good safety and good rate performance. It is an ideal Cathode materials for power batteries. [0003] At present, when enterprises are producing and preparing lithium manganate, they need to use a mixer to stir manganese compounds and lithium compounds. However, in the process of using the existing mixers, they simply use a stirring rod to Mixing and stirring, and this method of mixing and stirring is prone to the fact that the materials in the upper and lower parts cannot be uniformly mixed, thereby affecting the p...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a preparation method of doped modified spinel-type lithium manganese oxide, which has the advantages of uniform mixing and stirring and automatic removal of clogging, and solves the problem of using the existing mixer. In this method, the stirring rod is simply used for mixing and stirring, and this mixing and stirring method tends to cause that the materials in the upper and lower parts cannot be mixed uniformly, thus affecting the production quality of lithium manganate, and the existing mixer When unloading, it is easy to block the discharge pipe, which not only requires the operator to spend a lot of time cleaning, but also affects the production efficiency of the enterprise.

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