High-efficiency low-warpage solar cell aluminum slurry and preparation method thereof
A technology for solar cells and aluminum paste, which is used in cable/conductor manufacturing, circuits, electrical components, etc., and can solve problems such as cell warpage
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Embodiment 1
[0021] Equipped with 76 parts by mass of spherical aluminum powder so that the average particle size is 3-6 μm and the maximum particle size is less than 15 μm.
[0022] 20 parts by mass of an organic vehicle are prepared. The preparation process is: select 66% terpineol, 10% ethyl cellulose, 3% butyl carbitol acetate, 10% butyl carbitol, 5% tributyl citrate, 3% Phenolic resin and 3% lecithin. After mixing, stir at 100°C for 2 hours, cool naturally, and filter for later use.
[0023] Weigh 4 parts by mass of glass powder. The glass powder preparation process is: weigh 28% barium oxide, 11% vanadium pentoxide, 4% zinc oxide, 26% lead oxide, 30% bismuth trioxide, 0.5% potassium oxide, 10.5% di boron. Mix it evenly in a corundum crucible, and after fully preheating at 500°C, heat it to 1350°C and keep it warm for 2 hours. Stir the high-temperature mixture evenly and quench it with water to obtain a glass powder precursor. The precursor was mechanically milled with zirconia ...
Embodiment 2
[0026] Equipped with 74 parts by mass of spherical aluminum powder, so that the average particle size is 3-6 μm, and the maximum particle size is less than 15 μm.
[0027] 23 parts by mass of an organic vehicle were prepared. Its preparation process is: select 70% terpineol, 8% ethyl cellulose, 1% butyl carbitol acetate, 12% butyl carbitol, 5% tributyl citrate, 2% Phenolic resin and 4% lecithin. After mixing, stir at 100°C for 2 hours, cool naturally, and filter for later use.
[0028] Weigh 3 parts by mass of glass powder. The glass powder preparation process is as follows: 10% barium oxide, 2% vanadium pentoxide, 16% zinc oxide, 10% lead oxide, 32% bismuth trioxide, 26% boron trioxide, 1% oxide Titanium, 3% magnesium oxide. Mix it evenly in a corundum crucible, and after fully preheating at 500°C, heat it to 1350°C and keep it warm for 2 hours. Stir the high-temperature mixture evenly and quench it with water to obtain a glass powder precursor. The precursor was mechan...
Embodiment 3
[0031] Equipped with 76 parts by mass of spherical aluminum powder so that the average particle size is 3-6 μm and the maximum particle size is less than 15 μm.
[0032] 21 parts by mass of an organic vehicle are prepared. The preparation process is: select 68% terpineol, 8% ethyl cellulose, 2% butyl carbitol acetate, 12% butyl carbitol, 2% tributyl citrate, 3% Phenolic resin and 5% lecithin. After mixing, stir at 100°C for 2 hours, cool naturally, and filter for later use.
[0033] Weigh 3 parts by mass of glass powder. The glass powder preparation process is as follows: 1% vanadium pentoxide, 24% zinc oxide, 52% bismuth trioxide, 20% boron trioxide and 3% titanium oxide are weighed in parts by mass. Mix it evenly in a corundum crucible, and after fully preheating at 500°C, heat it to 1300°C and keep it warm for about 2.5 hours. Stir the high-temperature mixture evenly and quench it with water to obtain a glass powder precursor. The precursor was mechanically milled with...
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Abstract
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