Polycrystalline Solar Cells A GRADE 3BB 156*156mm with Low Price

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Polycrystalline Silicon Solar Cells:

Solar cells is made by solar wafer, it has three categories of solar cell right now, monocrystalline polycrystalline and thin film,These cells are entirely based around the concept of ap-n junction, which is the critical part of solar module, it is the part that can convert the light energy into electricity, the thickness is from 180um to 200um, with even busbars to conduct electricity, textured cell can decrease diffuse reflection; they are often electrically connected and encapsulated as a module. Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting  semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc. Solar cells are also usually connected in series in modules, creating an additive voltage. Connecting cells in parallel will yield a higher current;With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

Polycrystalline Silicon Solar Cells Advantage:

•  High efficiency and stable performance in photovoltaic conversion.
•  Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
•  Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and  attractive appearance.
•  High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
•  High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser cutting. 

Physical characteristics 

Dimension: 156*156mm±0.5mm

Thickness:  wafer(si): 200μm±20μm

                      Cell: 240μm±40μm

Front: silver bus bars;dark blue/others silicon nitride anti reflection coating

Back: silver/aluminum bus bars;full-surface aluminum BSF

Specification:

Mechanical data and design

  Format          -       156 mm × 156 mm ± 0.5 mm  

Thickness-       -       200 μm ± 20 μm

Front (-)               1.4 mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)           -     2 mm wide soldering pads (silver) back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp .coef.%/K                 -0.364%/K   

Isc . Temp .coef.%/K                 +0.077%/K

Pm. Temp. coef.%/K                 -0.368%/K

 

Efficiency code

Efficiency(%)

Pmax(w)

Impp(A)

Vmpp(V)

Isc(A)

Voc(V)

182

≥18.20

4.43

8.26

0.536

8.71

0.634

180

18.0-18.2

4.38

8.22

0.533

8.68

0.632

178

17.8-18.0

4.33

8.17

0.530

8.63

0.630

176

17.6-17.8

4.28

8.12

0.527

8.60

0.627

174

17.4-17.6

4.23

8.08

0.524

8.56

0.625

172

17.2-17.4

4.19

8.05

0.521

8.53

0.622

170

17.0-17.2

4.14

7.99

0.518

8.49

0.620

168

16.8-17.0

4.09

7.94

0.515

8.45

0.618


Intensity Dependence

Intensity [W/m2]      Isc× [mA]          Voc× [mV]           Pmpp

1000                         1.00                    1.000                 1.00

900                           0.90                    1.000                 0.90

800                           0.80                    0.99                   0.80

500                           0.50                    0.96                   0.49

300                           0.30                    0.93                   0.29

200                           0.20                    0.92                   0.19

 

IV Curve

Polycrystalline Solar Cells A GRADE 3BB 156*156mm with Low Price

 

Solar Panel Images:

Polycrystalline Solar Cells A GRADE 3BB 156*156mm with Low Price


Polycrystalline Solar Cells A GRADE 3BB 156*156mm with Low Price

 

Packaging & Delivery of Polycrystalline Solar Cells

Carton Box Package and Deliver by air. It should be noticed that it should be avoid of water, sunshine and moist.


FAQ

We have organized several common questions for our clientsmay help you sincerely

What price for each watt?

It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.

How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

What is your warranty of solar cell?

 Our product can promise lower than 0.3% open box crack, we support claim after opening the box if it has crackm color difference or sth, the buyer should give pictures immediately, we can not accept the claim after the solar cell has assembled to solar panel.

• Timeliness of delivery

• How do you pack your products?

We have rich experience on how to pack the solar cell to make sure the safety on shipment, we could use wooden box or pallet as buyer's preference.

 Can you do OEM for us?

Yes, we can.

 

  

 

Solar power has been able respected, more and more widely used, in large part because it is environmentally friendly way of generating renewable power generation process does not produce carbon dioxide and other greenhouse gases, will not pollute the environment, and therefore widely. From the current terms of the types of solar cells, including crystalline silicon cells, thin film batteries and other battery materials. Monocrystalline silicon cells are divided into cells, polycrystalline cells and amorphous silicon thin-film batteries.

For solar cells, the most important parameter is the photoelectric conversion efficiency, developed in the laboratory of silicon-based solar cells, Monocrystalline silicon cell efficiency of 25.0%, polycrystalline silicon cell efficiency of 20.4%, CIGS thin-film cell efficiency of 19.6%, CdTe thin film cell efficiency of 16.7%, an amorphous silicon (amorphous silicon) thin film battery efficiency of 10.1%, while in practical application efficiency is slightly lower this level.

We are familiar with crystalline silicon cells into single crystal and polycrystalline, except that the silicon wafers. Monocrystalline wafers made of polysilicon raw material crystal pullers pull into a bar and then sliced into monocrystalline, polycrystalline silicon film is made of polysilicon through ingot casting furnaces made of polysilicon ingots and then sliced. Since the difference between the fabrications of polycrystalline silicon solar cell battery much. But the conversion rate, the current conversion rate of monocrystalline silicon cells generally 16% to 18% conversion rate of polycrystalline silicon cells generally 15% to 16%. From the comparison of production costs, polycrystalline silicon cells cheaper materials manufacturing simple, to save power consumption, lower overall production costs, get a lot of development. Therefore, polycrystalline silicon cells accounted for two-thirds of the amount of crystalline silicon cells, accounting for over 55% of the solar cell market share. However, although the cost of polysilicon occupies advantage, in addition to the conversion rate lower than the silicon, its service life is shorter than the Monocrystalline silicon solar cells.


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Q:What is the working principle of a solar cell?
The simplest way to explain this is : A solar cell converts the sun's energy into electricity.
Q:Is A grade better than the B grade when we buy the poly solar cells.
Poly Solar Cells B Grade might not sound very competitive to the purchasing managers who are purchasing the poly solar cells in the market, but that’s what I need.
Q:How to get high voltage and high current output of solar cells?
If you put the circuits in series, the output of the solar cells' voltage can be improved.
Q:Can the 156x156mm high efficiency single crystal cells assembly function better compared to the traditional one?
Yes, according to our research and development, we have statistics to show that the 156x156mm high efficiency single crystal cells assembly does function better compared to the traditional one.
Q:What is 3d solar cell? And anybody know any manufacturers?
3d solar cells are more high efficient than the usual solar cells, and it's a new developed technology which is not used very widely. Therefore, there are not many manufcturers are producing it.
Q:What is the best way to deal with surplus solar cells abandoned after burning?
This is a very commonly mentioned topic related to environmental protection, because the abandoned solar cells have battery surplus could be very bad for our environment. Scientiests are dicussing ways to deal with that but there is still not a good solution.
Q:Is that true that the price of solar cells will be reduced in the coming year?
It is very possibile that that solar cells' price will go down this year because there were many orders last year, either from European or China market. The solar cells are actually very sustainable. Once you buy it, you can use it for years. With the falling demand the price of course will go down.
Q:Is the polymer solar cell the cheapest type among all the different kinds of solar cells?
Compared to the other solar cell made of the expensive silicon, polymer solar cells are cheaper.
Q:Is solar cell technology very developed and v applied to life a lot?
Yes, solar cells are very commonly used in the commercial military, industrial, areas.
Q:What do the solar cell suppliers provide once we purchase the order from the solar cells from them.
The solar cells suppliers might also help you to finish you solar cells installation process, which is considered to be a necessary but valuable service they can provide to the clients.

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