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Is lithium ion battery harmful to human body?

Dec 13, 2018   Pageview:922

Everything in nature, as long as the temperature is above zero in absolute temperature, is constantly transmitting heat in the form of electromagnetic waves. This way of transmitting energy is called radiation. The energy emitted by an object through radiation is called radiant energy, or radiation.

 

Even you are constantly radiating energy to the outside world. So, don't hear the radiation is very nervous. It can be said that radiation is ubiquitous. It has evolved for millions of years as a human being. It has natural resistance to common radiation. The radiant energy during charging is negligible, so don't think too much.

 

The position of the pre-filled post, the sealed post, etc., which is commonly referred to as a liquid injection post or a chemical injection post, is in danger of being in contact with the electrolyte. In the ingredients, there will be relatively large dust, which is harmful to people. The coating station has a greater hazard to the respiratory tract, and the dust in the production position is relatively large, but the radiation is not.

 

The lithium battery factory is divided into two major blocks:

 

If it is a battery core, the contents inside the battery core are harmful to the human body. It is not recommended to go to work. Wear a gas mask or a mask. I didn't know the situation before I opened a battery ingredient bucket, smoked it, and couldn't eat it for a day.

 

If you are doing PACK, it basically has no effect on the body (individual stations need to be exposed to organic solvents).

 

The so-called radiation refers to the phenomenon that radio waves generated by high-frequency oscillation of the circuit are emitted into space. Radiation of a certain frequency and intensity has an effect on the body. The batteries used are generally chemically and physically altered, and there is no radio frequency generation, so there is no radiation.

 

Everything in nature, as long as the temperature is above zero in absolute temperature, is constantly transmitting heat in the form of electromagnetic waves. This way of transmitting energy is called radiation. The energy emitted by an object through radiation is called radiant energy, or radiation.

 

Even you are constantly radiating energy to the outside world. So, don't hear the radiation is very nervous. It can be said that radiation is ubiquitous. It has evolved for millions of years as a human being. It has natural resistance to common radiation. The radiant energy during charging is negligible, so don't think too much.

 

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

 

Of course, the concept is relative, and lead-acid, nickel-chromium batteries. Its pollution is very small, no heavy metal pollution. But for the environment, it is definitely harmful (chemicals are not poisonous?).

 

Electrode materials and electrolytes and solvents may be contaminated:

 

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 hexafluoro phosphate. 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. Several different production methods are shown below: Figure 5

 

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 matter 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 all toxic and hazardous substances, or need to waste lithium battery should be sent to a qualified place for unified treatment. Do not discard it.

 

1. First, radiation is divided into ionizing radiation and electromagnetic radiation. The battery may generate certain electromagnetic waves through electrical appliances (such as mobile phones), but the battery itself does not. Ionizing radiation is a general term for all kinds of radiation that can cause ionization of substances. Many, high-speed charged particles have alpha particles, beta particles, protons, uncharged particles with seeds, and X-rays, gamma rays, these radiation doses have adverse effects on people.

 

2, there are many types of lithium batteries, common lithium batteries have lithium-ion batteries and lithium polymer batteries, lithium-ion batteries are mostly wrapped in stainless steel casing, relatively safe, lithium polymer battery packaging is like tin foil, susceptible Damage, which can cause burning after being damaged, because lithium is a very active metal that can cause burning when exposed to the air.

 

Lithium-ion batteries are harmful to the human body. The most harmful is the electrolyte solution. The electrolyte is an organic volatile liquid, and it is obviously corrosive. Inhalation of volatile gases for a long time is harmful to the respiratory tract.

 

Solute: Lithium salts such as lithium perchlorate (LiClO4), lithium hexafluoro phosphate (LiPF6), lithium tetrafluoroborate (LiBF?) are often used. Solvent: Since the operating voltage of the battery is much higher than the decomposition voltage of water, lithium ion batteries often use organic solvents such as diethyl ether, ethylene carbonate, propylene carbonate, diethyl carbonate, and the like. Organic solvents often destroy the structure of graphite during charging, causing it to exfoliate, and forming a solid electrolyte interphase (SEI) on its surface to cause electrode passivation. Organic solvents also pose safety issues such as flammability and explosives.

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