The thickness of EVA solar cell encapsulation film is 0.45-0.46mm.

Introduction The thickness of EVA solar cell encapsulation film is 0.45-0.46mm. Generally, EVA manufacturers can achieve a thickness of 0.3-0.8mm. The most conventional specification is 0.

The thickness of EVA solar cell encapsulation film is 0.45-0.46mm.

In general, EVA manufacturers can achieve a thickness of 0.3 to 0.8 mm, and the more conventional specification is around 0.5 mm. However, some EVAs are flat films and some are embossed on both sides. measurement The difference in thickness is about 0.5mm, that is, the 0.5mm film is measured as 0.55mm. I am a technician who produces EVA.

What is a solar cell backsheet

EVA itself has an unstable chemical structure and relatively poor aging resistance. At high temperatures and humidity, EVA is more prone to aging phenomena such as yellowing, blistering and degumming. In addition, EVA is easy to hydrolyze, and the acetic acid generated will not only accelerate the degradation of EVA, but also corrode the glass and backplane, destroy the bond between EVA and glass and the backplane, will corrode the electrodes and ribbonssoldering and will seriously affect the electrical performance of the component.

What are the differences between TPT, EVA, PVB, PET and DNP among photovoltaic materials?

There are five layers in the section cross section of a solar panel: photovoltaic glass, EVA, solar cells, EVA and rear panel. (Tedlar film is the backsheet)

The backsheet of solar cells is located on the back of the solar panel, protecting and supporting the cells, and has insulation, resistance to reliable water and resistance to aging.

Usually has a three-layer structure (?PVDF/PET/PVDF?). The external protective layer ?PVDF?has good resistance to environmental erosion. The middle layer is made of ?PET?a polyester film with good insulating properties. PVDF and EVA layers have good bonding properties.

1. PVB and EVA

EVA requires two layers; he is closesurized at high temperature by a laminator and becomes one after cooling, which plays a role in fixing and bonding.

PVB is a building material with much better weather resistance, but is more than three times more expensive than EVA. EVA is the mainstream of monocrystalline silicon packaging. For amorphous silicon, we choose PVB for packaging.

2. The difference between TPT, PET and DNP.

In order to maintain the best operating conditions of solar cells and maintain a lifespan of 25 years, the backsheet material used must have properties such as UV resistance, barrier water vapor and weather resistance. TPT, PET and DNP are just synonyms for solar cell back films, which play a very good role in protecting solar cells.

The rear films of solar cells aret mainly divided into two categories: fluorine-containing back films and non-fluorine back films. Among them, the fluorine-containing back film is divided into two types: double-sided fluorine-containing (such as TPT) and single-sided fluorine-containing (such as TPE), while the non-fluorine back film is mainly made of many elements ; layers of PET glued together with glue.

TPT refers to using DuPont's TEDLAR (trade name) PVF film on both sides of the back solar film, and adding a layer of transparent PET in the middle for lamination , i.e. TEDLAR+PET+TEDLAR, hence the name TPT.

Fluorine-free back film made of multiple layers of PET adhesives.The characteristics of the material itself cannot meet the 25-year environmental testing and usage requirements of silicon solar cell modules commercial crystalline such as moist heat,dry heat and ultraviolet rays. Therefore, it is difficult to suit the packaging of crystalline silicon solar. cellular modules.

The outermost layer of the DNP backsheet is made of PET with excellent water resistance, followed by DNP's unique highly durable adhesive layer, which ultimately achieves the excellent product durability.

Generally, companies use EVA+PET.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01