Its high strength characteristics can effectively protect the cells from external mechanical damage, such as hail, wind and sand, etc. At the same time, good weather resistance enables it to work stably for a long time under various harsh climatic conditions.EVA (ethylene-vinyl acetate copolymer) is one of the commonly used packaging materials. It has good adhesion, light transmittance and weather resistance, and can tightly bond the battery cell, glass panel and backplane together to form a sealed whole.
The backplane is usually made of polymer materials, such as polyvinyl fluoride composite film (TPT) or polyethylene terephthalate (PET), which has good insulation, waterproof and aging resistance, and can protect the back of the battery cell from erosion by water vapor, dust, etc.




