Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof
A technology of solar cells and crystalline silicon, applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve the problems of high cost, difficulty in realizing high-efficiency batteries and low cost, and improve conversion efficiency , Simplify the process and reduce the manufacturing cost
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[0052] Example 1-6
[0053] Raw materials: select raw materials according to Table 1. Examples 1-6 are respectively added with TeO with different compositions and particle sizes listed in Table 1 2 -Bi 2 O 3 -Sb 2 O 3 -MO (M=Zn, Mg, Ba, Ca) glass powder
[0054] aTeO 2 -b(Bi 2 O 3 ,Sb 2 O 3 )-cMO glass preparation method:
[0055] First, mix and grind the raw materials in accordance with Table 1 thoroughly, then add the mixed raw materials into the corundum crucible, heat and melt at 900~1300℃ for 1-5h, then ball mill after water quenching, and grind to a particle size of 0.5-10μ. , Dry to obtain the required glass powder.
[0056] Slurry preparation method:
[0057] Weigh the conductive silver powder and lead-free glass powder according to the proportion in Table 1, mix them thoroughly to obtain the mixed powder, put the mixed powder in the organic carrier phase according to the proportion, stir and pre-disperse, and roll it in a three-roller until the scraper fineness is less than 1...
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