ELECTRODE WIRE MATERIAL AND SOLAR CELL HAVING CONNECTION LEAD WIRE FORMED OF THE WIRE MATERIAL
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United States of America Patent
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app pub date -
Jul 24, 2009
filing date -
May 22, 2003
priority date (Note) -
Abandoned
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Abstract
An electrode wire material that can be used in a solar cell is produced without using flattening rolls or endless belts and has excellent solderability. The electrode wire material includes a core material formed of a strip-like conductive material and a hot-dip solder plated layer formed on a surface of the core material. A recessed portion for storing molten solder is formed in the core material along the longitudinal direction and the hot-dip solder plated layer is filled in the recessed portion. The recessed portion for storing molten solder preferably has an opening width in the lateral direction of the core material of about 90% or more of the width of the core material. The core material is preferably formed of a clad material including an interlayer of a low thermal expansion Fe alloy and copper layers formed on both surfaces of the interlayer.
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