Infrared shielded EVA photovoltaic film
A technology of infrared shielding and adhesive film, which is applied in the direction of photovoltaic power generation, adhesives, adhesive additives, etc., can solve the problems of output power reduction, power generation power reduction, battery operating temperature increase, etc., and achieve the effect of temperature reduction and output power increase
Active Publication Date: 2017-04-26
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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Benefits of technology
This technology helps protect batteries from harmful UV radiation by reducing their temperatures while still allowing them to transmit visible lights effectively without losing any energy they produce during use or being shaded off over time due to sunlight exposure.
Problems solved by technology
The technical problem addressed in this patented technology relates to improving the efficiency at capturing and converting incident rays into electricity from naturally occurring sources like sunray or artificial lights without increasing their own heat production during operation.
Method used
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Embodiment 4
[0034] Embodiment 4 is a preferred implementation.
[0035] Table 2—different implementation example formula and performance (EVA resin: infrared shielding agent: antioxidant: crosslinking agent: silane coupling agent=96.6:0.5:0.5:0.9:1.1,)
[0036] 1~10%: 1~10%: 5~20%: 20~70%: 30~80%
[0037]
[0038]
Embodiment 2
[0039] Embodiment two is a preferred embodiment.
[0040] The thickness of the EVA film in the present invention is 350-750 μm.
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The invention relates to the technical field of photovoltaic films, in particular to an infrared shielded EVA photovoltaic film. The infrared shielded EVA photovoltaic film is prepared from, by mass, 94.5%-98.5% of ethylene-vinyl acetate copolymer resin, 0.10%-0.75% of an infrared shielding agent, 0.30%-2.0% of an antioxidant, 0.45%-2.0% of a cross-linking agent and 0.25%-1.10% of a silane coupling agent. The infrared shielded EVA photovoltaic film has the advantages that the infrared shielding agent is selected, almost all ultraviolet rays being 1,200-2,500 nm or above can be shielded, and the temperature of a battery piece obtained after encapsulation is greatly lowered; the particle size of the selected infrared shielding agent is nanoscale, the light transmittance ranging from 400 nm to 1,200 nm can achieve 90% or above, and the output power is greatly improved.
Description
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