Materials for solar photovoltaic modules

2023-03-07

1. Glass: Ultra-white cloth pattern tempered glass, thickness 3.2mm, light transmittance of more than 91% in the wavelength range of solar cell spectral response (320-1100nm), resistant to ultraviolet radiation, and light transmittance does not decrease. The components made of tempered glass can withstand the impact of Ice Hockey with a diameter of 25 mm at a speed of 23 m/s.
2. EVA: A high-quality EVA film layer with a thickness of 0.5mm is used as a sealant for solar cells and a connecting agent with glass and TPT. Has high light transmittance and anti-aging ability.
Performance requirements of EVA film for solar cell packaging after curing:
Light transmittance greater than 90%; crosslinking degree greater than 65-85%; peel strength (N/cm), glass/film greater than 30; TPT/film greater than 15; temperature resistance: high temperature 85 ℃, low temperature -40 ℃.,
3. TPT: the back of the solar cell, aging resistance, corrosion resistance, UV radiation resistance, airtight and other basic requirements.
4. Border: The aluminum alloy frame used has high strength and strong mechanical impact resistance.

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Introduction of main raw materials and components of solar photovoltaic modules

2023/03/08