GLASS POWDER AND SILVER-ALUMINUM PASTE FOR USE ON FRONT OF N-TYPE DOUBLE-SIDED SOLAR CELL COMPRISING SAME
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United States of America Patent
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May 19, 2022
app pub date -
May 13, 2019
filing date -
May 13, 2019
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Abstract
The present invention relates to a glass powder and a silver-aluminum paste for use on a front of an N-type double-sided solar cell comprising a conductive silver powder, a silicon-aluminum alloy powder, the glass powder and an organic vehicle. The glass powder comprises the following components by weight: 0-50% of PbO, 0-50% of BiO, 5-15% of B2O3, 8-9% of SiO2, 2-3% of Al2O3 and 5-15% of ZnO; silicon and aluminum in the glass powder have a mass ratio of 4:1-5:1; the conductive silver powder has a content of 80-90 wt %; the conductive silver powder comprises a nano-silver powder and a silver alloy powder, and the nano-silver powder to the silver alloy powder have a mass ratio of 1:18-1:90.
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