Polycrystalline Solar Cell High Quality 17.40-19.20% Effy

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Shanghai
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Min Order Qty:
1000 pc
Supply Capability:
1000000 pc/month

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Product Description:

Solar Cells:

solar cells, when struck by photons of light from the sun, generates an electrical current which can then be used to power DC or AC electrical loads.
A solar cell is made of silicon. Computer chips are made of this same material. Basically, when light strikes the surface of a solar cell some of it is absorbed into the silicon. This light energy bumps the electrons loose and causes energy to flow

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 PN 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.

Specifications

Format

52x78mm±0.5mm

Diameter

220±0.5mm

Thickness

200±20um

Weight

2±0.5g

Front(-)

1.8mm bus bars (Silver)

Blue anti-reflecting coating (Silicon nitride)

Back (+)

3mm wide soldering pads (Silver)

Back surface field (aluminum).

Efficiency code


1720

1740

1760

1780

1820

1840

Efficiency (min)

(%)

17.2

17.4

17.6

17.8

18.2

18.4

Pmax

(W)

4.186

4.234

4.283

4.332

4.429

4.478

Voc

(V)

0.631

0.632

0.634

0.636

0.640

0.642

Isc

(A)

8.446

8.485

8.523

8.573

8.660

8.700

Vmp

(V)

0.525

0.527

0.529

0.531

0.535

0.537

Imp

(A)

7.973

8.035

8.097

8.160

8.280

8.340


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. 

Polycrystalline Solar Cell High Quality 17.40-19.20% Effy

FAQ

We have organized several common questions for our clients,may help you sincerely:

①What price for each watt?

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

②How 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.

③Can 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.

④What 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

• ⑤How 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.



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Q:I am working on research for the usage of solar cells, where can I find more news of solar cells?
www.solardaily.com could be the website that you are looking for.
Q:What is sun cells technology?
Sun cell technology is a advanced high power generation technology based on how the sun works on our daily life. It utilizses sun power to generate different powers in the technical way (mostly by using silicon as a transimmiter) to generate energy, and use it in our daily work and life.
Q:Which brand of the solar cells is sold with the lower price on the market? Which brand is more practical for the countryside?
Well, it depends on how many and how big is your project. The more you want, the cheaper it is.
Q:How can the huge solar cells be applied into the market?
If you are just using power supply for daily usage, such as a family of 6, you don’t need the huge solar cells.
Q:I am a purchasing manager for a EPC engineering company, and we are planning to purchasing some 4bb solar cells for one of our project in Taiwan, can I get a quotation online?
I did the purchasing for my client once, and I found out you can get to talk to many sellers if you spend some time searching on alibaba.
Q:How can I explain to my 10 year old daughter what solar cells are?
I had the same question from my son when he was 11 years old. All I did was I took him to the National Electricity museum, and it explains everything about solar cells.
Q:What should I know about the Crystalline silicon photovoltaic cells?
In electronics, crystalline silicon is typically the monocrystalline form of silicon, and is used for producing microchips. This silicon contains much lower impurity levels than those required for solar cells. Production of semiconductor grade silicon involves a chemical purification to produce hyperpure polysilicon followed by a recrystallization process to grow monocrystalline silicon.
Q:Can the 156x156mm high efficiency single crystal cells assembly function better compared to the traditional one?
I think so, because all the research and experiments already proved that.
Q:What is the current situation and the recent progress space solar cells in China?
80% of the satelites in space are using power provided by solar cells. That's why the solar cells research and development are so important in China.
Q:How can I understand the working principles of solar cells?
You have to spend more time than you thought to really understand it.

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