Consult the difference between silicon and battery
From the silicon wafer to the battery piece needs to undergo the process of making wool, and the single crystal silicon wafer is generally made of alkali. Therefore, the appearance of monocrystalline silicon battery is black, and the appearance of polycrystalline silicon sheet is dark blue.
And the battery slice is cut the silicon wafer cleaning, making, P/N knot, printing and so on after the results of the process, directly cut the silicon chip can not be used for power generation.
Silicon wafer is generally refers to the silicon ingot with diamond wire or just cut into pieces,
