Applying a glass polymer to the surface of the solar cell to extend battery life

　　Author ：Iflowpower – Portable Power Station Supplier

Solar battery manufacturers usually do not provide gift packaging, but they may consider doing this. A new research report pointed out that the correct packaging materials and methods can reduce the process of decomposition, which quickly destroyed photovoltaic equipment performance and shorten service life. In recent years, solar cells made from calcium titanium-type semiconductor materials are shining under photovoltaic spotlights.

These metal organic materials, such as the manufacture and processing costs of the methylammonium trihalide lead and the methoxidine analogue than crystalline silicon (a conventional photovoltaic material), but their performance is quite. However, when exposed to high temperatures, moisture and bright sunlight, the perovskite will decompose and structural changes, resulting in a decline in electrical output of the battery, hindering the commercialization of devices. The researchers have come to protect the perovskite battery by using epoxy resin, butyl rubber, ceramic and chemical treated films.

But some most effective methods require specialized equipment, and cost is high. Others avoid high humidity or long exposure to high temperatures, but they cannot withstand the harsh test under harsh conditions. The research team led by Leishi and Anitaw.

y.hobaillie, the University of New South Wales, found that the glass and poly (isobutene) or poly (olefin) can be done after experimenting the various materials and solar cell packaging methods. at this point.

The researchers show that the battery is completely encapsulated, not just the edge, which is low-profile sealed packaging material made of a thin glass polymer interlayer, which can make these equipment through the International Electrotechnical Commission. Wet heat and wet cycle test. These accelerated aging test simulates demanding outdoor conditions by exposing the battery to 85% relative humidity and repeated temperature cycle between -40 to 85 ¡ã C, these conditions may cause the battery to be layered from the ice layer.

The conversion efficiency of the packaged battery (a standard performance indicator) fell less than 5% in the 1800-hour wet heat test and 75 humidity frozen tests. Ho-Baillie, which is under the University of Sydney University, has also developed a gas chromatography / mass spectrometry for analyzing a gas product decomposed by calcium titanium ore. Through identification of halogenated methane, methylformamide and other species, researchers clarified a variety of decomposition routes.

They show that the airtight packaging method can make the decomposition reaction to a balance, and regressive before the cells are damaged. Sangilseok, Ulsan National Science and Technology, said: "The results report here are important because they indicate that the perovskite battery can achieve efficient and long-term stability. He added that with GC / MS, researchers can now accurately identify gas products and infer the decomposition route.