There are many kinds of battery materials used in led solar lights, among which silicon batteries are more common, mainly including monocrystalline silicon, polycrystalline silicon and amorphous silicon. There are some differences between them as follows:
1: The difference in appearance
From the appearance, the four corners of the monocrystalline silicon battery are arc-shaped and the surface has no patterns; while the four corners of the polycrystalline silicon battery are square corners with a pattern similar to ice flowers on the surface; the amorphous silicon battery is what we usually do The thin-film module is not like a crystalline silicon cell where the grid lines can be seen, and the surface is as clear and smooth as a mirror.
2: Use the difference above
For users, there is not much difference between monocrystalline silicon cells and polycrystalline silicon cells, and their life and stability are very good. Although the average conversion efficiency of monocrystalline silicon cells is about 1% higher than that of polycrystalline silicon, because monocrystalline silicon cells can only be made into a quasi-square shape (all four sides are arc-shaped), there will be a part of the area when forming solar panels It is not full; polysilicon is square, so there is no such a problem. Their advantages and disadvantages are as follows:
Crystal silicon module: The power of a single module is relatively high. Under the same floor area, the installed capacity is higher than that of thin-film modules. However, the components are thick and fragile, have poor high-temperature performance, poor low-light performance, and high annual attenuation rate.
Thin film modules: The power of a single module is relatively low. But the power generation performance is high, the high temperature performance is good, the low light performance is good, the shadow blocking power loss is small, and the annual attenuation rate is low. The application environment is wide, beautiful and environmentally friendly.
3: Manufacturing process
The energy consumed in the manufacturing process of polycrystalline silicon solar cells is about 30% less than that of monocrystalline silicon solar cells. Therefore, polycrystalline silicon solar cells account for a large share of the total global solar cell production, and the manufacturing cost is less than that of monocrystalline silicon cells. Therefore, the use of polycrystalline silicon solar cells will Will be more energy-saving and environmentally friendly.
