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  • 4.21W Polycrystalline Solar Cells
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4.21W Polycrystalline Solar Cells 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: ZC-TPB 156 x 156

 
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Materials Poly crystalline Silicon Size 156*156mm
Max.power 4.21W Type P type
Grade A Grade Warranty 25 years
Efficiency 16.2%-17.2% Busbar 3 bus bar
Producion Capacity 150MW / year Color Deep blue

 

 

 

 

 

 

 

 

156 mm*156 mm poly crystalline Solar Cell 4.21 W 3 busbar

 

1> Quick Detail:

  • Place of Origin: China
  • Brand Name: ZOCEN
  • Model: ZC TPB-156*156
  • Certificate: CE,CQC, IEC, TUV, CEC, MCS, CHUBB, ISO9001

 

2> Description:

  • What does a solar cell consist of?

More than 90% of all currently used solar cells consists of a silicon wafer which is doped as a semiconductor.
To manufacture the wafer a block of the purest silicon is normally sawn into thin slices. During this process roughly the half of this block ends up as shavings which can no longer be used for solar cells since they are too contaminated.
To avoid these sawing losses the so-called EFG process (EFG: Edge-Defined Film-Fed Growth) was developed for which SCHOTT Solar owns the patents.
To manufacture EFG wafers the silicon is drawn out of the melt on an octagonal extraction frame, already with the desired thickness. With this process a silicon block is no longer created, instead a hollow octagonal tube with a very thin wall. The wafers are cut out of this frame using a laser with next to no loss of material.
The EFG process allows the manufacture of solar cells with significantly less energy. An important advance for the environment.
The diagram further down shows the individual steps of the EFG process: The octagonal tube from which the silicon wafers are cut, the wafers and the complete solar cell which is then installed in a PV solar panels.

 

  • Detailed Products
  1. Materials: Mono silicon
  2. Format Dimension: 156 x 156mm (±0.5mm)
  3. Diagonal:R200mm
  4. Thickness wafer (Si): 200±20μm
  5. Thickness cell: 200±40μm
  6. Weight: 15g
  7. High efficiency 18.4%-17.4%, stable performance conversion
  8. Front(-): Blue silicon nitride anti-reflection coating 2.0mm silver busbars
  9. Back(+): Full-surface aluminum back-surface field 3.0mm(silver/ aluminum) continuous soldering pads Efficiency range: 17.4-18.4%
  10. Maximum power range: 4.15 to 4.47W
  11. Grade type: A
  12. Typical temperature coefficients: Voltage: -2.15%/K; Current: +4.4%/K; Power: -0.43%/K

 

3> Features:

  1. High conversion efficiencies resulting in superior power output performance.
  2. Suitable for keeping appearance of solar cell tidy and clean.
  3. Advanced diffusion technology adapted to ensure conversion efficiency uniformity throughout cell.
  4. Advanced PECVD film forming technology used to coat cells with dark blue silicon nitride anti-reflection coatings.
  5. Uniform color appearance.
  6. Advanced soft line and high precision silkscreen printing equipment to achieve high smoothness, make automatic welding and laser cutting easier.
  7. Metal paste applied to making back surface field and electrode to ensure top conductivity, nice adhesion, superior weld-ability, nice appearance and reliable performance.
  8. Efficiency, stability and durability of crystal silicon.
  9. Low breakage rate.
  10. Environmental protection.
  11. OEM orders are welcome

 

4> Specifications:

  • Mechanical dimensions

 

 

  • Electrical Parameters of products

Product name

Efficiency(%)

Pmpp(W)

Vmpp(V)

Impp(A)

Voc(V)

Isc(A)
156 x 156mm(6") Poly-Crystalline Silicone Solar Cell 17.2 4.21 0.527 7.988 0.626 8.851
17.0 4.16 0.524 7.931 0.624 8.462
16.8 4.11 0.521 7.891 0.623 8.411
16.6 4.06 0.518 7.843 0.621 8.363
16.4 4.01
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Company Info

Jieyang Zhongcheng Group Co. Ltd [China (Mainland)]


Business Type:Manufacturer
City: Shenzhen
Province/State: Guangdong
Country/Region: China (Mainland)

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