What is the hazard of lithium battery production?

What are the hazards of producing lithium batteries for lithium batteries? Actually, how to look at pollution depends on the comparison of other batteries. Then it mainly refers to lithium-ion batteries, because lithium -ion batteries are now produced less.

Will the production process of the lithium battery line and the process cause pollution (gas, water and soil)? At the current stage of lithium battery production, lithium batteries (Li-ion) will not be contaminated with (toxic heavy metals).

1. Start with the battery itself

Of course, the concept is relative, and lead acid, nickel-chromium batteries, it's very small pollution, no heavy metal pollution. But it's definitely bad for the environment.

Electrode materials and electrolytes and solvents may contaminate:

It needs to be explained again that these pollutions are extremely low compared to conventional batteries.

2. Let us talk about the pollution that may occur in the process of producing batteries.

In the process of making the pole pieces: in the process of these links, the domestic mainstream lithium iron phosphate system, even the ternary system, does not have relatively large pollution, of course, the ternary system may have certain pollution with lithium cobalt oxide. For example, cobalt, manganese and nickel are considered heavy metals, but they are relatively environmentally friendly. Among them, lithium iron phosphate is the most environmentally friendly.

The remainder, except for the contamination of the materials described above, is primarily a cyclic/chain carbonate or carboxylate in the injection. The solute is mainly lithium salt lithium hexafluorophosphate. The additives are mainly film-forming additives, flame retardant additives, conductive additives, and low-temperature discharge additives. The pollution of the whole process is also good. Of course, chemical agents, without paying attention to their control, are definitely polluted to the environment. As for the final packaging and formation, the pollution is even smaller.

3. Talk about the recycling part

For lithium cobalt oxide and ternary systems, of course, there is still a need for recycling, after all, it contains heavy metals. However, lithium iron phosphate, in addition to the internal electrolyte and the like is basically harmless, compared with other batteries, it does not produce any toxic and harmful medium metal elements and substances such as lead, mercury, cadmium, etc., so the pollution is relatively small.

However, substances in waste lithium-ion batteries can cause heavy metal nickel and cobalt pollution (including arsenic), fluorine pollution, organic pollution, dust and acid-base pollution. The electrolyte of waste lithium-ion batteries and their conversion products, such as LiPF6, LiAsF6, LiCF3S03, HF, P201, etc., solvents and their decomposition and hydrolysis products, such as DME, methanol, formic acid, etc., are toxic and hazardous substances. We still need to send waste lithium batteries to a qualified place for unified treatment, do not throw away.

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