Bi-PERC ALUMINUM PASTE for PERC Solar Cells
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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