Application areas of photovoltaic packaging films
Photovoltaic power station
Photovoltaic power plants are one of the most common photovoltaic application areas. Adhesive film packaging is used to protect photovoltaic cells
Cell components, improve their stability and life, thereby increasing the power generation efficiency of photovoltaic power stations.
Building integrated photovoltaics
By integrating photovoltaic modules into the exterior walls, roofs and other parts of the building, the adhesive film not only provides protection
protection, but also ensures transparency, allowing light to penetrate, allowing the building to perform both photovoltaic functions and
It can also maintain a beautiful appearance.
Portable photovoltaic equipment
Film packaging is widely used in solar chargers, mobile power supplies, etc. These devices require Thin, soft adhesive film to ensure device portability and durability.
Agrivoltaic
In the agricultural field, photovoltaic cell modules are often used in irrigation systems, greenhouses, etc. glue Film encapsulation can provide protection in these environments while ensuring light transmission, providing farmers with Industry produces renewable energy.
photovoltaic car
Used in electric vehicles and solar vehicles, the lightness and weather resistance of the film are important for automobiles. The solar charging system on the car surface is crucial.
Household photovoltaic system
In household applications, household photovoltaic systems usually include photovoltaic cell modules, and film encapsulation.It can protect these components and extend their service life.
Manufacturing process of photovoltaic packaging film
Substrate selection
Select a suitable substrate for photovoltaic packaging.
Add additives
Add additives that can improve film performance.
coating
The prepared adhesive film material is applied to the surface of the solar cell chip through a coating machine.
solidify
Usually heat curing or UV curing is used.
Lamination
The cured adhesive film is combined with other components (such as glass, backplane, etc.) through a lamination process
together.
Cut
Cut the photovoltaic encapsulation film to match the size of the photovoltaic cell module.
Testing and quality control
Test the manufactured photovoltaic packaging film to ensure that its performance meets the requirements.
Common photovoltaic packaging film materials
EVA (ethylene vinyl acetate)
EVA is currently one of the most commonly used photovoltaic packaging films. It has good transparency, electricity
It has excellent gas performance and mechanical strength, but is sensitive to moisture and prone to aging.
POE (polyolefin elastomer)
POE is a new type of film material with good moisture resistance and weather resistance.
Gradually it is applied in photovoltaic packaging.
TPU (thermoplastic polyurethane)
TPU is another new type of film material with good flexibility and anti-aging properties.Suitable for some application scenarios with high requirements on adhesive films.
TPT (polyester film)
TPT film has certain advantages over EVA in terms of moisture resistance, but its light transmittance and conductivity Performance is relatively poor.
photovoltaic packaging film Frequently Asked Questions and Solutions
moisture sensitivity
Traditional EVA film easily absorbs moisture, causing the moisture content inside the film to rise and affecting the battery pack.
The stability and life of the parts.
Adding anti-moisture additives can effectively reduce the sensitivity of the film to moisture.
photoaging
Photovoltaic modules are prone to photoaging under long-term sunlight exposure, resulting in the transparency of the film.The performance and mechanical properties are reduced.Adding anti-UV additives can slow down the photoaging process.
Battery thermal runaway
Due to the limited thermal conductivity of the encapsulating film, photovoltaic cells are prone to heat loss in high temperature environments.
control, affecting the stability of the system.
The introduction of high thermal conductivity additives can improve the thermal conductivity of the adhesive film.
L'additivo per film di incapsulamento fotovoltaico è un materiale ausiliario utilizzato nel processo di imballaggio delle celle solari fotovoltaiche. Viene utilizzato principalmente per ottimizzare il processo di incapsulamento delle celle solari e migliorare l'efficienza e le prestazioni dell'incapsulamento. L'aggiunta di additivi appropriati per il film di incapsulamento fotovoltaico (appositamente applicati all'adesivo hot melt del livello del film fotovoltaico) può migliorare il tasso di successo dell'imballaggio del film di incapsulamento fotovoltaico. Dopo l'aggiunta di additivi, l'adesione tra il film e il pannello di silicio solare sarà efficacemente migliorata, aumentando così la resa. Gli additivi per film di imballaggio fotovoltaico Kos hanno un'elevata trasparenza, un basso punto di cristallo e altre caratteristiche, un alto tasso di innesto, una buona fluidità, un'alta resistività, e sono i preferiti dalla maggior parte degli utenti!
