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Monocrystalline 210 12BB PERC Bifacial Solar Cell

Bifacial M12 PERC Solar Cell
210mm M12 PERC solar cell
210mm high efficiency HJT solar cell

Monocrystalline 210 12BB PERC Bifacial Solar Cell

  • Dimensions :

    210mm*210mm±0.25mm
  • Thickness :

    180±20μm
  • Front (-) :

    12*0.06±0.04mmbusbar (silver), 174±15 fingers Blue (dark blue)
  • Back (+) :

    Back electrode width (silver) 2.12 ±0.4mm, back covered with fingers

   

What is PERC Technology?

     PERC means Passivated Emitter and Rear Contact or Passivated Emitter and Rear Cell .

   Traditional cells saw jumps in efficiency when panel manufacturers began putting a front passivation layer to prevent electron recombination at the front panel. Additional bumps in efficiency were achievable by reducing the number of electrons that hit the rear of the panel.

    PERC cells take this one step further by placing an additional capping and passivation layer on the rear surface of the photovoltaic (PV) panels, thereby reducing back-side recombination. These layers also help prevent the panels from heating up from unreflected solar radiation. Since panels perform better in cooler temperatures, this helps boost performance as well. PERC cells work in a similar manner but with a few key differences.

    The n-type sheet, which is negatively charged, typically contains more atoms that have an additional electron in their outer shell — like phosphorus — to maintain that negative charge.

    The positive p-type sheet contains positively charged holes into which those additional electrons can fit. These are usually boron or gallium, which lack one valence electron needed to bond with the silicon around it.

    The atoms missing an outer electron — the holes — naturally bond with the atoms that have an extra valence electron. This leaves one additional electron out of the bond, which then gets discharged and collected as electricity.

   When solar energy enters the panel, the positive and negative silicon layers naturally rebalance, and the process begins again. While the underlying idea is the same, PERC cells have a few additional layers to prevent the loss of electrons to the outside world.

           

                   

                                         

 

           Light intensity reliability

 Intensity(W/m²)

1000

900

800

600

400

Uoc

1.0 0.996 0.991 0.988 0.962

Isc

1.0 0.903 0.803 0.602 0.403
* Taking the Voc(Isc) tested at 1000W/m² as the standard, test the decrease of Voc (Isc) with the light intensity.

 

                 Solderability                                                                                                 IV curve                                                                                                            

 

Minimum peeling strength ≥1.1N/mm
Results may vary depending on electrode, welding method, and conditions.

 

 

                                      

             Front Electrical performance distribution         

Efficiency
Eff(%)
Maximum
output power
Pmpp(W)
Maximum output voltage
Umpp(V)
Maximumpower
point current
Impp(A)
Open-circuit voltage
Uoc(V)
Short-
circuit
current
Isc(A)
FF(%)
23.1 10.18 9.75 17.261 0.690 18.186 81.15
23.0 10.14 0.589 17.216 0.689 18.166 81.01
22.9 10.10 0.587 17.206 0.688 18.140 80.93
22.8 10.05 0.586 17.151 0.687 18.125 80.71
22.7 10.01 0.584 17.140 0.686 18.108 80.58
22.6 9.97 0.583 17.101 0.685 18.088 80.46
22.5 9.92 0.581 17.074 0.685 18.062 80.18
22.4 9.88 0.579 17.064 0.684 18.049 80.02
22.3 9.83 0.577 17.036 0.682 18.030 79.94
22.2 9.79 0.575 17.026 0.681 18.016 79.79
22.1 9.75 0.574 16.986 0.680 17.995 79.68
Standard test conditions:1000W/m², AM1.5, 25. The above technical parameters are subject to technical changes and tests.
All data contained in this datasheet is subject to change without notice.
 

 

 

        Back Electrical performance distribution         

Efficiency
Eff(%)
Maximum
output power
Pmpp(W)
Maximum output voltage
Umpp(V)
Maximumpower
point current
Impp(A)
Open-circuit
voltage
Voc(V)
Short-
circuit
current
Isc(A)
>16 7.06 0.582 12.130 0.677 13.361
15.5-16 6.92 0.579 11.952 0.675 13.352
>15-15.5 6.70 0.572 11.713 0.673 13.244
<15 6.53 0.565 11.558 0.672 13.124
Standard test conditions:1000W/m², AM1.5, 25. The above technical parameters are subject to technical changes and tests.
All data contained in this datasheet is subject to change without notice.
 
 

               

 

 

                    

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