Brothers above, do not frighten others. These heavy metals are indeed harmful to the human body (I am a biology student), but you should also look at the nature of your work.
I checked the working principle of lithium batteries. The main elements of the positive and negative electrode materials of lithium batteries are lithium, manganese and cobalt (the negative electrode is a carbon-lithium mixture). It is harmful to the body, but it refers to the ionic state, and the manganese you use when working is in a stable compound state, which means that the human body will not be harmed by the damage mentioned above (these are all in the blood (symptom observed when heavy metals are present in the ionic state).
But this does not mean that there are no danger It can only be said that the worst situation has been eliminated.What to pay attention to now is respirable suspended particles, because you. have said your work The workplace is poorly ventilated and the dust present during work are stable compounds, difficult to decompose by the human body and are easily deposited in the alveoli (same principle as the previous silicosis). This is the main problem.
Solution: You can wear a mask, but it's not very effective. These deposits in the lungs won't make you feel anything for a short time, but they will definitely be uncomfortable in 2-3 years. If the factory still can't improve it now. If you don't feel good about your work situation and your body, don't do it anymore. The extra money you earn isn’t enough to make up for it. We students are not willing to stay another minute in the chemistry laboratory.