ST. PAUL, Minn.--(BUSINESS WIRE)--3M Renewable Energy is debuting its latest innovative solution for the
solar industry at Solar Power International, October 21-24 in Chicago,
Ill. The new 3M Backside Busbar Tape 4706 allows manufacturers to
eliminate silver-based backside busbars, enabling significant cost
savings and protecting against the volatility of silver prices. In
addition to these benefits, this tape-based solution has the potential
to improve absolute efficiency by approximately 0.2 percent.
3M Backside Busbar Tape 4706 is a copper foil tape coated with a
high-performance heat-curable adhesive on one side. The tape can be
bonded to aluminum pastes commonly used on the back surface of
crystalline solar cells, and provide reliable, low-resistance electrical
contact comparable to backside silver busbars. Preliminary tests have
shown stable long-term electrical performance in damp heat and thermal
3M Backside Busbar Tape 4706 can be incorporated into existing
manufacturing processes with an automated tape bonder. The fast-curing
thermoset adhesive enables high productivity to match typical cell
manufacturing processes. These cells can be inter-connected using
standard tabbing and stringing operations in typical panel manufacturing.
3M representatives will be on site at booth number 426 at SPI to speak
with interested parties about how 3M Backside Busbar Tape 4706 can be
incorporated into their products.
For more information, please visit: www.3M.com/Solar
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