Polycrystalline Solar Cells 2BB/3BB with Long-term Electrical Stability

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$0.18 - 0.33 / watt
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4200 watt
Supply Capability:
600000 watt/month

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Specifications of Poly Solar Cells 


156 mm × 156 mm ± 0.5 mm


210μm ± 40 μm

Front (-) 

1.5mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)

2.5mm wide soldering pads (silver) back surface field (aluminium)    


Temperature Coefficient of Poly Cells

Voc.Temp .coef.%/K 

Isc.Temp .coef.%/K+0.035%/K
Pm.Temp. coef.%/K-0.47%/K


Electrical Characteristic of Poly Cells 











> 4.186

> 4.186






















































Advantages of Poly Solar Cells

1. High efficiency and High power.

2. Long-term electrical stability.

3. Lowest price and Fastest delivery.

4. Good quality and good service.

5. Bulk supply

6. Good Warranty

7. Big Sale

8. More than 25 years on the lifetime.


Usage and Applications of Poly Cells

Solar cells 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 the 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;our solar cells have passed IEC Certification.

With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

Packaging & Delivery of Poly Cells

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


Factory Picture of Poly Cells

Solar Cells


Package Picture of Poly Cells

Solar Cells


Solar Cells



Polycrystalline solar cells 2BB/3BB combines the high conversion efficiency monocrystalline silicon cells and preparation of amorphous silicon thin film materials as well as long-life battery, etc. relatively simplified new generation of batteries, the conversion efficiency is generally about 12%, slightly lower than the silicon solar cells, there is no obvious efficiency recession, and may be prepared on an inexpensive substrate material, the cost is much lower than silicon cells, and more efficient than amorphous silicon thin film batteries.
From the production cost, than monocrystalline silicon solar cells cheaper, simple materials, saving power consumption, lower overall production costs, and therefore get a lot of development. In addition, Polycrystalline solar cells 2BB/3BB battery life is also shorter than the single crystal silicon solar cells.
Monocrystalline silicon solar cell production requires large amounts of high-purity silicon material and manufacturing process complexity of these materials, power consumption is large, the total production cost of solar cells has over one-half. Coupled with cylindrical silicon rods drawn, sliced wafer production of solar cell is composed of low solar plane component. Therefore, since the 1980s, some European and American developed countries put Polycrystalline solar cells 2BB/3BB.
Has been the focus of a single crystal to polycrystalline direction, mainly due to; [1] can supply less and less solar cell material end to end; [2] in terms of solar cell, a square substrate is more cost-effective, and by casting method polysilicon direct solidification method can be directly obtained rectangular materials; the production process [3] polysilicon continue to make progress, automatic casting furnace each production cycle (50 hours) can produce over 200 kg ingots, grain size reaches cm level; [4] Since the last decade of research and development of single-crystal silicon technology quickly, which technology has also been applied to the production of polycrystalline silicon cells, such as selective etching the emitter, back surface field, corrosion suede, surface and bulk passivation , thin metal gate electrode, using screen printing technology allows the width of the gate electrode is reduced to 50 m, height of 15 m or more, rapid thermal annealing technology for polysilicon production process can significantly shorten the time, single-chip thermal process time can be less than a minute to complete, using the technology in the 100 cm2 polycrystalline silicon sheet made cell conversion efficiency over 14%. According to reports, the 50 to 60 micron substrate made of polysilicon cell efficiency of over 16%. The use of mechanical groove, screen printing technology in 100 square centimeters crystal efficiency more than 17%, no mechanical groove in the same area on the efficiency of 16%, using buried gate structure, mechanical groove in the 130 cm2 polycrystalline on the cell efficiency reached 15.8%.

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Q:What should I know about the Crystalline silicon photovoltaic cells?
Crystalline silicon photovoltaic cells, known as cSi PV, are made of silicon atoms connected to one another to form a crystal lattice. This lattice comprises the solid material that forms the photovoltaic (PV) cell's semiconductors.
Q:Solar water heater plate can be directly converted into electrical energy?
Solar panels: solar panels are the core of the solar power system and the highest value part of the solar power generation system, which transforms the sun's radiant power into electricity or stores it in a battery or drives the load The quality and cost of solar panels will directly determine the quality and cost of the entire system;
Q:What is the window material in the solar cell? what's the effect?
Because the window layer near the surface, the defect is very much, if the absorption of light generated photogenerated carriers, then it is easy to die, do not contribute to the battery output, the absorption of light are wasted, reducing battery efficiency.
Q:Where can I help my company to buy the 3 Busbar Solar Cell for our project?
Maybe you would like to check this out; Solarworld Brands Mono 3-Busbar Solar Cell Made in Germany. Is this what you are looking for?
Q:Can the 156x156mm high efficiency single crystal cells assembly function better compared to the traditional one?
The reason why it is functioning better is because of its h igh power large area silicon solar cell.
Q:Is A grade better than the B grade when we buy the poly solar cells.
I think the A grade is better than B grade, but just not sure how better it can be compared to the others.
Q:Where can I buy the 156x156mm high efficiency poly solar cells assembly?
156x156mm high efficiency poly solar cells assembly is usually very easy to get, all you need to do is to post your need online, and the suppliers will come to you.
Q:Is it complicated to make a solar cell work well?
For the professionals, it is not complicated at all.
Q:How is the solar panel and the battery connected?
Solar cells and battery connection, it is best to use a photovoltaic charging controller, which can control the output voltage of solar cells can protect the battery is not overcharge, but also at night when the solar cell does not generate electricity, to prevent the battery power back
Q:Many people said the usage of solar cell can reduce the cost overall, but does anyone agree with me that it actually cost a lot to operate a solar cell system?
Yes, I agree with you in this way because it is true that operating the solar cell system cost a lot.
M-CELL is one of the leading international solar cells manufacturers and specialized in research & development, manufacturing and marketing of solar cells, module and photovoltaic power system made of mono and poly silicon. Our annual solar cells production capacity of the first workshop reaches 210MW.We’re in compliance with the principle that technology comes first and we will meet customers’ need with first-class products, superior service and continuous improvement.

1. Manufacturer Overview

Location Zhejiang, China
Year Established 2008
Annual Output Value Above US$ 320 Million
Main Markets Australia; Asia; South East Asia; South America; North America; Europe; Africa
Company Certifications ISO 9001:2008; CE; TUV; UL

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Ningbo, China
Export Percentage 45% - 50%
No.of Employees in Trade Department 200-300 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 10,000 Square meter
No. of Production Lines 8
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average