What are the hazards of lithium ion battery production?

Different batteries have different effect on environment. This article will focus on lithium ion battery. At present, seldom companies produce lithium metal battery.

Lithium battery production line production process, as well as the process will cause (gas, water and soil pollution? Lithium battery production process at the present stage, lithium batteries (Li - ion) there would be no toxic heavy metals pollution.

1. The first from the battery itself

An excerpt from "battery knowledge"

, of course, this concept is relative, and lead acid, nickel chrome battery, its pollution is small, and no heavy metal pollution. But for the environment, or positively harmful (chemical what things not poison?).

Electrode materials and electrolyte and solvent pollution:

Need again, these compared with the traditional battery, pollution is very low.

2. Besides, the production of the battery may produce pollution in the process.(image from Lithium - ion batteries: A Japanese tech growth story?)

Pole piece made process: in the process of this a few links, with major domestic lithium iron phosphate system, and even the ternary system, there is no more pollution, may of course ternary system and cobalt acid lithium or have a certain amount of pollution, such as cobalt, manganese, NieDou heavy metals, but also is relatively more environmentally friendly. Among them, the most eco-friendly lithium iron phosphate.

Rest, in addition to according to the above material pollution, note liquid solvent is primarily ring/chain carbonate or carboxylic acid ester. Solute mainly six lithium fluoride phosphate, lithium salt additives mainly film-forming additives, flame retardant additives, conductive additives, additives to improve low temperature discharge. The whole process pollution are also good, chemicals, of course, do not pay attention to its control, there is certainly a pollution to the environment. As for the final package and into, that have less pollution.

3. Talk about recycling

For cobalt acid lithium and ternary system, and of course there are recycling necessary, after all, which contain heavy metals. Lithium iron phosphate, however, in addition to basic harmless internal electrolyte and so on, compared with other battery don't have any lead, mercury, cadmium and other poisonous and harmful metallic elements in the material, so the pollution is relatively small.

However, if waste lithium ion battery of substances goes into the environment, it will cause pollution of heavy metal nickel and cobalt (including arsenic), fluorine pollution, organic pollution, dust, acid and alkali pollution. Waste lithium ion battery electrolyte and their transformation products, including LiPF6 LiAsF6, LiCF3S03, HF, P201, solvent and its decomposition and hydrolysis product, including DME, methanol, formic acid, etc., are toxic and harmful substances. We still need to send waste lithium batteries for qualified local unified processing, do not arbitrarily discarded the waste.

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