At present, ball milling is mostly used in industry to prepare spinel lithium manganate. However, this method cannot ensure the uniform distribution of lithium salts and manganese salts, and the particle size of the prepared lithium manganate material is uneven. So what to do if the lithium manganate ball mill is uneven?
As an ideal cathode material for power batteries, spinel lithium manganate has the advantages of rich raw materials, environmental friendliness, and high safety performance. The theoretical specific capacity can reach 148mah/g. Its three-dimensional lithium ion channel allows lithium ions to be reversibly removed from spinel. It can be deintercalated without causing the collapse of the structure, so the spinel lithium manganate material has good cycle performance.
Studies have shown that if the purity of the material is low and the morphology is irregular, side reactions between the electrode material and the electrolyte will increase, and manganese dissolution will be accelerated. As the number of charges and discharges increases, the Ginger Taylor effect of the lithium manganate cathode material will distort its internal structure, and the material's capacity will attenuate seriously.
At present, conventional solid-phase method is mostly used in industry to prepare spinel lithium manganate. The solid-phase method is to simply mix the raw materials and then conduct ball milling under certain conditions to make the mixing uniformity of the material reach the micron level, and then grind it at high temperature. The ball-milled mixture is subjected to high-temperature treatment. Generally, more than 15 hours of high-temperature heat treatment can achieve uniform diffusion of raw material components within the micron range. The advantage of this method is low cost, but it is not suitable for target products with complex composition elements. This method cannot ensure the uniform distribution of lithium salts and manganese salts. The prepared lithium manganate material has uneven particle size and uneven morphology. According to the rules, it is easier to cause side reactions between the electrode and the electrolyte, causing the attenuation of the material capacity. So what to do if the lithium manganate ball mill is uneven?
The HLM lithium manganate mill produced by Guilin Hongcheng is a vertical mill. The material of this equipment stays in the mill for a short time, reducing repeated grinding. The product particle shape is uniform, the particle size distribution is narrow, and the fluidity is good. It has strong adaptability, and the product contains very little iron. The material has high purity, good crystallinity, regular morphology, and the particles are relatively dispersed, which increases the specific surface area of the material, thereby increasing the contact area between the electrolyte and the material, and reducing lithium The insertion/extraction resistance of ions improves the discharge capacity and rate performance of the battery. In addition, the prepared lithium manganate material has a stable structure and is not easily damaged by side reactions with the electrolyte. The preparation process of this method is simple, the raw materials are cheap and easily available, the material has good cycle stability, and it is easy to realize industrial production. If you have relevant needs, please leave us a message to learn more about the equipment.