Automation production method used for producing high-voltage lithium cobalt oxide

Abstract

The invention provides an automation production method used for producing high-voltage lithium cobalt oxide. The method is characterized in that a uniformly-mixed material is filled in a saggar through filling equipment, the saggar is subjected to calcining in a fix-array double-layer roller-way kiln, the material comprises lithium carbonate and cobalt oxide, a manipulator is used for sending thematerial in the calcined saggar into crushing apparatus for crushing, the crushed material is subjected to screening, blending, magnet removal and automation package in order, and the packaged semi-finished product high-voltage lithium cobalt oxide is obtained; the semi-finished product high-voltage lithium cobalt oxide is subjected to wet-method cladding, secondary calcining, pneumatic conveying,screening, magnet removal and automation package in order, and the finished product high-voltage lithium cobalt oxide is obtained. The method has the advantage of easy and accurate control, and is benefit for keeping stable process, the whole system realizes isolation with extraneous foreign matters, effectively controls the foreign matter index of magnetic objects, and guarantees the stability and cycle life of the product under high voltage.

Description

technical field [0001] The invention relates to the technical field of production of positive electrode materials for lithium batteries, and more specifically relates to an automatic production method for producing high-voltage lithium cobaltate. Background technique [0002] In recent years, people have continued to deepen their research on positive electrode materials for lithium-ion batteries such as cobalt lithium oxide, nickel lithium oxide, and manganese lithium oxide, and have achieved many results. However, due to the high discharge point platform and high specific capacity of lithium cobalt oxide , has a series of advantages such as good cycle performance and safety performance, and is easy to prepare. It still attracts people's attention and is one of the main cathode materials for commercial lithium battery products. [0003] The methods for producing high-voltage lithium cobalt oxide in the prior art include: raw material input is generally measured manually and ...

AI Technical Summary

Problems solved by technology

[0004] The input of raw materials is measured manually, and the probability of error is high. Using ordinary mixers for mixing, the uniformity of raw material mixing is poor; most manufacturers use single-layer roller kilns in the calcination process, the production capacity is small and the cost is high, and the uniformity of the sintered materials is poor; The whole production process is not continuous automatic production, especially the sintering section and the crushing section are discontinuous, foreign matter is easy to be introduced during the material handling process, especially magnetic matter, and it is easy to absorb moisture, resulting in a decline in product quality; manual packaging, low efficiency, and every Poor accuracy and consistency of bag weights

Images