Advantages and disadvantages and energy density of lithium manganate batteries

Manganese acid lithium battery is a kind of lithium ion batteries. As for the classification of lithium ion battery, because the carbon anode is basically a raw material, the key industry is respectively classified by lithium ion battery cathode material. The so-called manganese acid lithium battery is lithium battery that uses manganese acid as anode material. What is lithium manganese acid? It is based on the EMD (a kind of raw materials, a special material has been used as mercury-free alkaline manganese battery) and lithium carbonate (also as raw materials), with the corresponding additives, which is made by mixing, sintering and other steps.

Now, we are when it comes to manganese acid lithium, said it is a spinel structure, which refers to its application in the shape of the crystals on the lithium battery, when lithium manganese acid should not be used for lithium batteries, and layered structure., spinel structure are relatively more stable than the layer structure (although based on the chemical properties, seem to also can think of in the geometric stability of different shapes), so in the practical application is still USES the spinel structure.

In addition to manganese acid lithium, cobalt acid lithium and the ternary lithium battery the anode are spinel structure, but this kind of spinel manganate lithium structure and it compared the two similar personality is very sharp, i.e., the advantages and disadvantages are very prominent. Its advantage is: good low temperature resistance, good rate performance, preparation easier, the disadvantage is that: the material itself is not stable, need to be used mixed with other materials, high temperature performance is poor, poor circulation performance, fast attenuation. The shortcomings of the lithium manganese acid are the characteristics of manganese. However, as a result of the manganese is widespread, has the obvious cost advantage.

Because of manganese acid lithium materials are so distinctive features, so people will use its advantages and inhibit its shortcomings, the manganese acid lithium batteries used in different fields, often referred to as class A and class B two applications. Class A is used for power battery, considering safety and cycle performance, to ask is reversible capacity in 100 ~ 115 mAh/g, can keep the 80% capacity after 500 cycles. Class B is mainly used in consumer electronics (mobile phones), its characteristic is high capacity, general requirement is reversible capacity in 120 mah/g, but the cycle performance requires only after 300 ~ 500 times to keep 60% of capacity.

These two types of battery performance is different in the process of production. As mentioned earlier, the preparation of manganese acid lithium is simple, if you want to process into respectively applicable to A and B class the positive pole of the battery, the additives and the process will be different, with different synthetic methods. Concrete are: high temperature solid phase method, melt impregnation method, microwave synthesis method, coprecipitation method, hydrothermal synthesis method, etc., if a detailed description of each preparation method, that is the matter of the manufacturing process, just know there are many ways to go here.

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