Related knowledge and problems of LiFePO4 batteries/pack

With the injection of more fresh energy, LiFePO4 batteries/pack has a good development prospect in the increasingly hot field of new energy. LiFePO4 batteries/pack generally refers to lithium-ion batteries that use lithium iron phosphate as the positive electrode material. The negative electrode is composed of graphite, with a diaphragm in the middle, and the material of the diaphragm is generally polyethylene or polypropylene. The electrolyte can be doped with various substances, such as tri-n-butyl phosphate (TBP). Next, let's take a look at the relevant knowledge and problems of LiFePO4 batteries/pack.

Here is the content list:

l The characteristics of LiFePO4 batteries/pack and their application.

l Environmental protection and recycling issues of LiFePO4 batteries/pack.

The characteristics of LiFePO4 batteries/pack and their application.

During the charging process of LiFePO4 batteries/pack, Li ions are continuously extracted from the positive electrode and then move to the negative electrode. When the power is about to reach saturation, Li ions are almost completely inserted into the negative electrode, forming an overcharge protection voltage, so the safety performance and stability of the battery's ability to work are unquestionable. The main advantages of LiFePO4 batteries/pack are:

(1) LiFePO4 batteries/pack has outstanding high-temperature performance and stability. When the external temperature reaches 338K, its internal temperature is as high as 367K. Compared with ternary lithium batteries, LiFePO4 batteries/pack are non-combustible, non-explosive, and have excellent safety.

(2) LiFePO4 batteries/pack has excellent cycle life and user experience. After 3500 cycles, its discharge capacity can still reach 80%.

(3) LiFePO4 batteries/pack are extremely portable. LiFePO4 batteries/pack are used on vehicles, which can greatly reduce weight and improve battery life and mileage.

From the characteristics summarized above, we can easily find that its performance is extremely suitable for power applications, and it is widely used in the electric vehicle industry.

Environmental protection and recycling issues of LiFePO4 batteries/pack.

Solving the environmental protection of batteries and the recycling problems brought about by them is a requirement of green development. Traditional batteries, due to the shallow recycling awareness of the public and no specific measures, will cause great pollution. But LiFePO4 batteries/pack is non-polluting to the environment. The battery does not contain any heavy metals or rare metals that are harmful to the environment. It is certified by SGS as non-toxic and non-polluting and complies with European ROHS regulations. LiFePO4 batteries/pack are non-polluting both during production and use and are out-and-out “green” batteries. Regarding the recovery of LiFePO4 batteries/pack, it can be seen from its failure mechanism that the decline in the performance of negative electrode graphite is greater than that of positive electrode LiFePO4 materials. However, the price of negative electrode graphite materials is relatively low, the amount of use is relatively small, and the economics of recycling are poor, so there are few studies. Therefore, the recovery of metals in positive electrode materials is the focus. At present, chemical precipitation wet recovery is an important method of waste battery recovery in the industry, and the most economically valuable Li and Fe can be recycled in the form of chemical raw materials.

If you are interested in our LiFePO4 batteries/pack products or have other needs, you can contact us. Our website is http://www.bak-tech.com/. Welcome and look forward to cooperating with you. Adhering to the corporate culture of "quality first, customer first", our company has always made unremitting efforts to become a professional LiFePO4 batteries/pack supplier in the industry.