Silicon solar cells are not secondary batteries.
Secondary batteries refer to batteries that can be charged and discharged repeatedly, such as lead-acid batteries. Silicon solar cells can only be converted to direct current and cannot be repeatedly charged and discharged. Therefore, there is no direct relationship between silicon solar cells and secondary batteries.
What are the types of silicon solar cells?
Solar cells are made of simple silicon, typically tested for sheet silicate, while ceramic glass cement silica is typically tested for optical fibers and crystals.At present, the main types include: crystalline silicon solar gallium arsenide solar cells and thin film solar cells. The celsCrystalline silicon solar cells are divided into polycrystalline silicon solar cells and monocrystalline silicon solar cells. Thin-film solar cells can be divided into polycrystalline silicon thin-film solar cells, microcrystalline silicon thin-film solar cells, amorphous silicon thin-film solar cells, dye-sensitized solar cells, selenide thin-film solar cells copper and indium, etc. The market is dominated by crystalline silicon solar cells, which account for 88% of the total solar cell demand. Among crystalline silicon solar cells, polycrystalline silicon solar cells account for a large proportion, accounting for nearly 2/3; monocrystalline silicon solar cells account for 1/3.
Silicon solar cells are divided into monocrystalline solar cells. solar cellssilicon res, polycrystalline silicon thin film solar cells and amorphous silicon thin film solar cells.
Monocrystalline silicon solar cells have the highest conversion efficiency and the most mature technology. The highest laboratory conversion efficiency is 24.7% and the large-scale production efficiency is 15%. It still occupies a dominant position in large-scale applications and industrial production. However, due to the high cost and price of monocrystalline silicon, it is difficult to greatly reduce its cost in order to save silicon materials, polycrystalline silicon films and amorphous silicon. films have been developed as monocrystalline silicon solar cells.
Compared to monocrystalline silicon, polycrystalline silicon thin-film solar cells are cheaper and more efficient than thin-film solar cells.thin layers of amorphous silicon. The maximum conversion efficiency in the laboratory is 18%, and the conversion efficiency in industrial-scale production is 18%. ten%. Therefore, polycrystalline silicon thin film cells will soon dominate the solar energy market.
Amorphous silicon thin film solar cells have low cost, light weight, high conversion efficiency, easy mass production and great potential. However, due to the photoelectric efficiency degradation effect caused by its material, its stability is not high, which directly affects its practical application. If the stability problem and the conversion rate problem can be further solved, then amorphous silicon solar cells will undoubtedly be one of the main development products of solar cells.