Because of some of raw materials and substrates are sensitive to moisture, we need to control the environment humidity during the processing program to ensure the quality and qualified rate. Such as PCB, processor, glass fiber, capacitance, electrical insulator and lithium battery, etc. Especially for lithium battery.
Lithium battery is one of most widely used battery, for lithium is one of most sensitive metal elements in the nature, if it's exposed in the air it can strongly react with moisture in the air. So it's quite important for lithium battery manufactures to control environment humidity in their core processing program. RH 1-2% or dew point -32 oC to -60 0C is general request for this kind of product. So silica gel and molecular sieve desiccant rotor are essential parts for their producing equipment.
