Renewable Energy Power
Solar panels
What are the “roadblocks” encountered in the industrialization of thin-film batteries?

As a technology-intensive industry, the solar cell industry has high requirements for research and development capabilities and technology. High conversion rates have become the focus of research institutions and battery manufacturers. At present, the conversion efficiency and technical level of silicon material batteries are relatively stable, and severe cost and price competition pressures have led more and more enterprises and research institutions to focus on copper indium gallium selenide, cadmium telluride, perovskite, and arsenic. Thin film solar cells such as gallium. However, there is still a long way to go before the scale, industrialization and commercialization of thin-film solar cells.


Prospects for industrialization are promising


In recent years, China's solar panel power generation industry has developed rapidly. The segmentation field represented by solar cells has received more and more attention. At present, silicon material solar cells account for about 90% of the PV module market share. In the context of the solar panel industry still taking crystalline silicon cells as the mainstream, thin-film solar cells have achieved rapid development with their own unique advantages.


Thin film technology is considered to be a new generation of solar cell technology. Compared with crystalline silicon cells, thin film solar cells have low energy consumption and low pollution in raw materials and preparation processes, and the utilization rate of raw materials is very high.


Compared with crystalline silicon cells, thin-film solar cells have the advantages of low material consumption, low energy consumption, and large space for cost reduction. At the same time, the thin film solar cell has stable performance and strong radiation resistance, and the photoelectric conversion efficiency is close to the mainstream solar panel silicon solar cell currently on the market.


In terms of photoelectric conversion efficiency, compared with the conversion rate of 25% of single crystal silicon and 20% of polycrystalline silicon, the cadmium telluride and perovskite thin film solar cells reached 17% and 21%, respectively. In addition, the latest news shows that in July, China's commercial large-size flexible copper indium gallium selenide (CIGS) thin-film solar modules (lighting area of 1.08 square meters), the photoelectric conversion efficiency of the lighting area reached 17.44%.


At the same time, in terms of industrialization and application, the pace of thin film solar cells is also accelerating. Recently, the thin-film solar cells developed by Tongda Dahao Mobile Energy Co., Ltd. with opaque, adjustable color, bendable, pasteable installation and low temperature coefficient have been mass-produced, with buildings and consumer electronics. Cross-border integration in many fields such as automobiles and drones.


Compared with crystalline silicon cells, thin-film solar cells are light and flexible, and have a wide range of market applications. They can be applied to the integration of thin film power generation buildings, industrial and commercial roofs, and interoperable power generation. They can also be used in consumer electronics, wearable, and mobile. Cross-border integration applications in areas such as power supplies.


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