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Bi-PERC ALUMINUM PASTE for PERC Solar Cells
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Description

BL03A is highly efficient conductive aluminum paste specially designed for the local BSF of the double-sided passivated crystalline silicon solar cell (PERC+, for short). It can realize complete local aluminum silicon contact at the laser mold opening, with high filling rate, high doping concentration and excellent conductivity. The unique rheological properties meet the requirements of high-speed printing, regular and full lines, high aspect ratio. With features of low bow, low consumption, pure color and smooth surface, it can effectively improve the conversion efficiency of the solar cell.

 

Benefits

  • Excellent conductivity
  • Good reliability
  • Low bow
  • Low consumption

Typical Drying Conditions

  • Chain fast burning furnace: 280℃-350℃/25-50sec;
  • Rotating drying furnace: 180℃-250℃/8-15min

Typical Properties

Test Properties
Solid Content (%) 72-82%
Viscosity (Pa.S) (Brookfield, 25℃, 14#, 20rpm) 10-100
Fineness(μm) ≤25
Wet Deposit (g/pcs)(156*156) 0.2-0.3
Surface No false marks, breakpoints, aluminum beads, aluminum thorns
Cell Bow (156 mono/polycrystal silicon,180μm) ≤2.0mm
Adhesion (N) (Single side EVA tape) 3M tape sticks, no aluminum transfer
Boiled Boiled at 80℃/10min, the aluminum layer will not fall off, no bubbles, and no blackening
EL test No obvious blackening
Features High efficiency and good reliability
Shelf Life Six Months from Date of Shipment
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