Types of lithium ion batteries

1、 Lithium cobalt ion battery:

The major feature of the whole configuration process is that when it is fully charged, there are still many lithium-ion batteries with positive levels. In other words, there is not a large number of lithium-ion batteries attached to the positive level on the negative level. However, in the case of overcharge, the unnecessary lithium-ion batteries on the positive level will still dive into the negative level. Because they cannot be completely contained, metal lithium will be generated on the negative level. Because this kind of metal lithium is a dendritic structure crystal, it is called dendrite. Once dendrite is generated, it will give an opportunity to pierce the gap. Partition wall puncture may cause internal short circuit fault. Because the key component of lithium battery electrolyte is carbon acid grease, the lightning and melting point are very low, so it will ignite or even explode at high temperature. The composition of manipulating lithium dendrites in small volume lithium batteries is relatively simple. Therefore, at present, lithium cobalt acid batteries are only used in small volume rechargeable batteries such as portable electronic products, and cannot be used as power lithium batteries.

2、 Polymer lithium ion battery:

Compared with kinetic energy, the basic theory that can be applied in practical activities has made great progress. It is related to lithium cobalt battery, which can better give full play to its high-capacity effect. However, at this stage, polymer lithium battery also applies lithium cobalt battery and organic chemical lithium battery electrolyte, so the problem of safety factor has not been solved at all. In operation, if a short-circuit fault occurs, charging the battery will cause excessive current. The lithium battery electrolyte of polymer lithium battery is colloidal solution, which is not easy to leak, so the probability of liquid leakage is eliminated, but it will ignite more violently. Therefore, fire is a greater risk for polymer lithium battery.

3、 Lithium manganate battery:

The data information of lithium manganate battery has certain advantages. It can ensure that the positive level lithium-ion battery can be completely placed into the negative level carbon hole when the battery is fully charged, instead of a certain content like the lithium cobaltate battery, so as to avoid dendrite from the source. This is all theoretical understanding. In fact, it is assumed that the purpose of the application of lithium manganate battery is to better enable the rechargeable battery to bear a great external force. Perhaps it is also possible that the rechargeable battery can produce a rapid fitness movement of lithium ion battery in the whole process of the battery charging cycle system. Dendrites are formed when the negative stage does not immediately and thoroughly digest and absorb lithium-ion batteries. The test shall be carried out at the original factory of the rechargeable battery to ensure the effectiveness of the results. Generally speaking, lithium manganate batteries that meet the system detection standards are not easy to cause safety production accidents. Because of the stable structure of lithium manganate ion battery, its air oxidation performance is improved, and the lithium cobalt ion battery is much lower. Therefore, even if the external short-circuit fault (rather than the internal short-circuit fault), most of them are not easy to dissolve metal lithium to cause ignition and explosion.

4、 Lithium iron phosphate battery:

It is an ideal power lithium-ion battery suitable for pneumatic tool driven cars, with a basic theoretical volume of 170mah/g and a specific data information volume of 160mah/g. In terms of safety factor, lithium iron phosphate battery has good heat resistance and low air oxidation capacity of lithium battery electrolyte, so the safety factor is high; However, the defect is that the conductivity is low, so the processing technology of modified materials must be improved. The electrolyte volume of lithium battery produced is too large and too much is used. In addition, due to the large volume and poor reliability of rechargeable batteries, the technology of lithium iron phosphate batteries is still in the scientific research link at this stage.