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

Ref Price:
$0.18 - 0.33 / watt
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
4200 watt
Supply Capability:
600000 watt/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

Specifications of Poly Solar Cells 

Format 

156 mm × 156 mm ± 0.5 mm

Thickness-

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 

-0.351%/K 
Isc.Temp .coef.%/K+0.035%/K
Pm.Temp. coef.%/K-0.47%/K

 

Electrical Characteristic of Poly Cells 

Efficiency

Efficiency

Pmax(W)

Average 

Impp(A)

Vmpp(V)

Isc(A)

Voc(V)

1720

17.20~17.40

> 4.186

> 4.186

7.94

0.528

8.515

0.626

1700

17.00~17.20

4.137~4.186

4.161

7.905

0.525

8.482

0.624

1680

16.80~17.00

4.088~4.137

4.113

7.863

0.521

8.402

0.623

1660

16.60~16.80

4.040~4.088

4.064

7.825

0.519

8.358

0.622

1640

16.40~16.60

3.991~4.040

4.015

7.769

0.517

8.304

0.621

1620

16.20~16.40

3.942~3.991

3.967

7.713

0.514

8.248

0.619

1600

16.00~16.20

3.894~3.942

3.918

7.67

0.511

8.204

0.616

 

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%.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the best way to deal with surplus solar cells abandoned after burning?
It has to be treated in a special way, which is chemically separated, otherwise, the surplus can not really be utilized again.
Q:What is the internal structure of solar panels
In addition to the quality of EVA itself, the components of the manufacturers of the laminated process is also very large, such as EVA glue degree is not up to standard, EVA and tempered glass, backplane bonding strength is not enough, will cause EVA early aging, Affect component life.
Q:Where can I buy solar cells?
Actually you can rent one, no need to buy one.
Q:What is the working principle of a solar cell?
It's not easy to explain in a simple way.
Q:We are currently promoting our one of our solar cells seriers, which is the 156mmx156mm 6inch,2BB/3BB polycrystalline/multi solar cells,mono solar cell,made in Taiwan/Germany, please feel free to contact me if any interest.
How long till it can be shipped? Because we are a solar construction company based in Taiwan, we need to make sure it can be shipped on time.
Q:How does the photovoltaic cells work?
Solar Cells, covering single crystal, polycrystalline and amorphous materials utilising homojunctions and heterojunctions, Schottky barriers, liquid junctions and their applications.
Q:What is sun cells technology?
Sun cells use high technology to change the sun's light energy into electrical energy. The sun cells can be used in the industries such as satellites, navigation lights, transistor radios and other power supply services.
Q:Are there any books in the market t about solar cells and their applications?
The solar was used in the SwissTech Convention Center.
Q:Is the Photovoltaic cell panel good to save the energy?
Photovoltaic cell panel, known as solar panels, are assembled by a number of solar modules in a certain way on a plate, usually as a unit of photovoltaic array. They are very good in saving the energy.
Q:What is the solar cell?
For solar cells formed by the combination of two different silicon semiconductors (P-type and N-type), when the sunlight is irradiated, the solar light is absorbed by the solar cell to produce positive ions (positive holes) and negative ions (electrons) The positive ions are assembled into the P-type semiconductor, and the negative ions are assembled to the N-type semiconductor.
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  
Range  
Reference  
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