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U.S. Ferro Electronics Launches Back Conductive Silver Paste to Reduce Battery Costs

Release time:2012-12-03

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For more than twenty-five years, Ferro Electronic Materials has been a leader in the supply of silicon solar cell pastes. On July 12-14, the North American Intersolar exhibition, the United States, Fulu launched two latest conductive silver paste on the back. These two new products can reduce the cost per watt while maintaining the same adhesion, weldability and field reliability as existing products.

PS2130 and PS2131 back silver paste

The two new products of American Ferro are pure silver paste, which can be printed quickly at a speed of 200mm/sec. They have good compatibility with the back aluminum paste, and the co-firing window is very wide. They are able to form very good adhesion to silicon wafers, have robust and powerful solderability properties, and have been verified by component testing. The PS2130 and PS2131 silver pastes are RoHS and REACH compliant, and are lead-free, cadmium-free, and benzene-free.

Two products are a new way to reduce costs.

The designed sintering thicknesses for PS2130 and PS2131 are 5-7 microns and 4-6 microns, respectively. Based on the current cost of silver and a factory with an annual production capacity of 500MW solar silicon cells, the use of these new pastes can save the solar cell factory US $5 million per year compared with Fulu's existing lead-free conductive silver paste.

"The new product improves solar cost competitiveness by reducing both precious metal content and printing consumption, which reduces the cost of ownership." ToddWilliams, the business manager of the American Ferro Electronic Materials Division said. "The PS2130 and PS2131 reduce costs while maintaining the superior mechanical properties of previous products."