• Polycrystalline Solar Cells 2BB/3BB with Long-term Electrical Stability System 1
  • Polycrystalline Solar Cells 2BB/3BB with Long-term Electrical Stability System 2
  • Polycrystalline Solar Cells 2BB/3BB with Long-term Electrical Stability System 3
Polycrystalline Solar Cells 2BB/3BB with Long-term Electrical Stability

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

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$0.18 - 0.33 / watt get latest price
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Payment Terms:
TT or LC
Min Order Qty:
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%.

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:Where and how can we find the best solar cells suppliers?
The good solar cell supplier won't just show up at your door, you need to dive into the solar cell market and get to know them by visiting the factories.
Q:What is the role of solar cells in powering electric vehicles?
Solar cells play a crucial role in powering electric vehicles by harnessing sunlight and converting it into electricity. They are typically installed on the roof of the vehicle, or integrated into its body, and generate renewable energy which can be used to charge the vehicle's battery. While solar power alone may not be sufficient to fully power an electric vehicle, it can significantly extend its range and reduce the reliance on grid electricity. Additionally, solar cells provide a sustainable and environmentally friendly solution, contributing to the overall goal of reducing carbon emissions and promoting clean energy transportation.
Q:Can solar cells be used for battery charging?
Yes, solar cells can be used for battery charging. Solar cells convert sunlight into electricity, which can be used to charge batteries. This is a sustainable and renewable way to power electronic devices.
Q:Can solar cells be used in indoor applications?
Yes, solar cells can be used in indoor applications. While solar cells primarily generate electricity from sunlight, they can also convert artificial light sources, such as fluorescent or LED lighting, into electricity. This makes them suitable for powering various indoor devices and applications, including calculators, wireless sensors, and even indoor lighting systems.
Q:Can solar cells be used in water heating systems?
Yes, solar cells can be used in water heating systems. Solar thermal collectors, which use solar cells, can capture sunlight and convert it into heat energy to warm water. This technology is commonly used in solar water heating systems, where the heat generated by solar cells is transferred to water in order to provide hot water for various purposes.
Q:What materials are commonly used to make solar cells?
Silicon is the most commonly used material for making solar cells. Other materials, such as cadmium telluride, copper indium gallium selenide, and perovskite, are also used in certain types of solar cells.
Q:What is the role of solar cells in powering outdoor lighting?
Solar cells play a crucial role in powering outdoor lighting as they convert sunlight into electricity. This renewable energy source is harnessed by solar cells installed on outdoor lighting fixtures, allowing them to operate without the need for grid electricity. Solar cells capture sunlight during the day and store the energy in batteries, which is then used to power the outdoor lights during nighttime. This sustainable solution helps reduce carbon emissions, lowers energy costs, and provides reliable lighting in outdoor spaces, even in remote areas where electrical infrastructure may be limited.
Q:How do solar cells affect the electricity grid?
Solar cells can have both positive and negative impacts on the electricity grid. On one hand, they can contribute to a more sustainable and renewable energy mix by generating clean electricity directly from sunlight. This reduces the need for fossil fuel-based power generation, leading to a decrease in greenhouse gas emissions and air pollution. Solar cells can also help diversify the energy sources in the grid, making it more resilient and less dependent on imported energy. On the other hand, the intermittent nature of solar power can pose challenges to the stability and reliability of the electricity grid. Since solar cells only generate electricity when the sun is shining, their output fluctuates throughout the day and is absent during nighttime. This can create imbalances between electricity supply and demand, as the grid needs to ensure a constant and reliable power supply to consumers. Additional measures, such as energy storage systems or backup power sources, may be required to address these intermittency issues and maintain grid stability. Overall, the integration of solar cells into the electricity grid presents opportunities for cleaner energy generation and reduced reliance on fossil fuels, but it also necessitates careful planning and the implementation of appropriate grid management strategies to mitigate potential challenges.
Q:What is the impact of bird nesting on solar cell performance?
The impact of bird nesting on solar cell performance can be significant. Bird nests can obstruct sunlight from reaching the solar panels, reducing their efficiency and overall power output. Additionally, bird droppings can accumulate on the surface of the panels, creating a layer that further hinders the absorption of sunlight. Regular maintenance and cleaning are necessary to ensure optimal performance and prevent any long-term damage caused by bird nesting.
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

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