Continuous production equipment for lithium manganese battery cathode material

Abstract

The invention relates to preparation equipment of lithium manganese, and particularly relates to continuous production equipment for a lithium manganese battery cathode material. The continuous production equipment comprises a roasting chamber, wherein the roasting chamber is divided into a left space and a right space by a heat conduction plate; the heat conduction plate is formed by two bendingfolding plates with an upper section, a middle section and a lower section; the upper folding plates and the lower folding plates are inclined toward the side of the accommodating chamber, and the middle folding plates are inclined toward the side of a heat supply chamber; a partition plate which enable lithium manganese gel to be put is horizontally arranged on a bending part of each middle folding plate and each lower folding plate in the accommodating chamber; the partition plate is movably connected with the heat conduction plate. According to the continuous production equipment for the lithium manganese battery cathode material disclosed by the invention, accommodation, drying and roasting of the gel are realized through the roasting chamber; the design is ingenious, a structure is simple, and the cost can be reduced; meanwhile, by utilizing afterheat, a container arranged on the upper side of the accommodating chamber is heated, and a whole technological process from preparationof the gel to the roasting is realized, so that energy sources can be reduced, and the working efficiency is greatly improved.

Description

Technical field [0001] The invention relates to equipment for preparing lithium manganate, in particular to equipment for continuous production of lithium manganate battery cathode materials. Background technique [0002] Lithium manganese oxide has become the first choice for positive electrode materials for power lithium-ion batteries due to its rich manganese resources, low cost, good safety, no environmental pollution, and easy preparation. However, the main reason that hinders the formation of power battery lithium manganese oxide industrialization capacity is Its performance is not stable enough, that is, its capacity decays quickly during the charge and discharge cycle, especially at high temperatures. At present, the main methods of lithium manganate can be divided into solid phase method and liquid phase method. Liquid phase methods such as the sol-gel method are widely used in the preparation of nano-ceramic powders, films and fiber coatings. Because the method can ac...

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Problems solved by technology

The principle of the existing sol-gel method is that a variety of metal cations can form chelates with organic acids, and the chelates can be polymerized with polyhydroxy acids to form a solid polymer precursor with uniform distribution of cations. The final product can be obtained by heat treatment of the precursor; however, due to the limitation of the preparation equipment, the preparation time is long and the cost is high

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