What impact does EVA encapsulation film have on battery panel performance?

EVA encapsulating film is one of the key materials in the manufacturing process of solar panels. It is mainly used for packaging between cells and backsheets to protect the cells and improve the overall performance of the panels. The impact of EVA film on battery panel performance is mainly reflected in the following aspects:

1. Protection: EVA film can provide physical protection for the battery cells, prevent external environment such as humidity, ultraviolet rays, etc. from causing damage to the battery cells, and extend the service life of the battery panels.

2. Light transmittance: High-quality EVA film has high light transmittance, which can allow more sunlight to penetrate to the cell, thereby improving the photoelectric conversion efficiency of the cell panel.

3. Sealing: After curing, the EVA film can form a good sealing effect and prevent the penetration of moisture and gas. This is crucial for maintaining a dry environment inside the battery panel and helps prevent corrosion and performance degradation of the battery cells.

4. Anti-aging performance: The anti-aging performance of EVA film directly affects the long-term stability of the battery panel. High-quality EVA film can maintain good performance after being exposed to the natural environment for a long time and reduce the power attenuation of the battery panel.

5. Thermal stability: EVA film should maintain good stability at high temperatures to avoid deformation caused by temperature changes, which is crucial to maintaining the structural integrity and performance of the battery panel.

To sum up, the quality of EVA encapsulation film directly affects the performance and life of solar panels. Therefore, when selecting EVA film, you should pay attention to its key characteristics such as protection, light transmittance, sealing, anti-aging performance and thermal stability.