Application cases of photovoltaic EVA hot melt adhesive film in solar module packaging

Application cases of photovoltaic EVA hot melt adhesive film in solar module packaging

EVA hot melt adhesive film is one of the core materials for solar module packaging and is widely used in the photovoltaic industry. Here are some typical scenarios.

In terms of crystalline silicon module packaging, EVA film is placed between the glass and the cell and between the cell and the backplane. Taking a large-scale ground power station as an example, the components are laminated at a high temperature of about 150 degrees Celsius in a laminator. The EVA film melts, flows, cross-links and solidifies, firmly bonding the glass, battery cells and backplane into one, effectively protecting the battery cells from water vapor erosion and mechanical impact, ensuring the components have a service life of more than 25 years outdoors.

In distributed rooftop photovoltaic projects, the high light transmittance of EVA film can reach more than 90%, which can ensure that sunlight reaches the cell surface through the glass to the maximum extent, improving power generation efficiency. At the same time, its good UV aging resistance ensures the stability of the module's long-term outdoor operation and reduces the operation and maintenance costs of the power station.

In the agricultural photovoltaic complementary project, the double-glass modules encapsulated with EVA not only meet the power generation needs, but also take into account the light transmission requirements for crop growth in the greenhouse, achieving comprehensive utilization of land resources and showing good economic and social benefits.

In addition, in the field of building-integrated photovoltaics, EVA film can adapt to the packaging needs of components of different shapes due to its excellent bonding performance and flexibility, realizing the organic combination of photovoltaic products and building curtain walls, making building exterior walls a production carrier of clean energy.

To sum up, EVA hot melt adhesive film has become an indispensable key material for solar module packaging due to its high light transmittance, excellent bonding strength, good weather resistance and mature processing technology. It plays an important role in various photovoltaic application scenarios and provides solid support for the high-quality development of the photovoltaic industry.