Use of solar panels for electricity generation is becoming a mainstream phenomenon with each passing day. This increased dependence of people and industries on photovoltaic energy generation has necessitated the development of more reliable and high performance components – PV Ribbon being the most important one of them. In this blog post, we will explore the role of solder-coated PV Ribbons in photovoltaic applications and examine the emerging trends in this industry.
A PV Ribbon is an interconnect/tabbing ribbon created as a hot dip tinned copper conductor for installation in solar panels and other photovoltaic devices. This interconnect ribbon wire is directly soldered with the silicon crystals in a solar panel and its function is to carry the electric current generated by the solar cells to the PV bus bar. The PV bus bar also requires the use of the same hot dip tinned conductor for connecting the ribbon with the solar panel junction box. This ribbon wire is usually 1 – 6 mm wide and 0.08 – 0.5 mm thick with a tin/solder coating of 10-30 microns for minimizing copper erosion.
The process of manufacturing PV Ribbon involves annealing and cleaning of copper wires followed by hot dipping them into a solder alloy. The solder alloy used for dipping the copper wires has to be high performing, reliable and capable of effectively preventing copper erosion in accordance with the photovoltaic industry standards. Another important consideration here will be minimized oxide formation or drossing of the alloy during the coating process.
Tin-Lead based alloys have long been the material of choice for coating PV ribbon capable of matching the needs of photovoltaic applications. However, the introduction of the RoHS directive has necessitated the complete avoidance of lead based solder alloys – an industry development that is now leading alloy manufacturers towards developing lead-free alternatives. Alpha Assembly Solutions has been a pioneer in this field, bringing forth a revolutionary product known as ALPHA® EcoSol – a lead-free and low melting point solder alloy that offers performance attributes that are comparable with tin-lead alloys, is cost effective and is specifically designed to meet the needs of PV Ribbon Tinning and cSi Module Assembly. You can trust this product for your photovoltaic manufacturing requirements.
A PV Ribbon is an interconnect/tabbing ribbon created as a hot dip tinned copper conductor for installation in solar panels and other photovoltaic devices. This interconnect ribbon wire is directly soldered with the silicon crystals in a solar panel and its function is to carry the electric current generated by the solar cells to the PV bus bar. The PV bus bar also requires the use of the same hot dip tinned conductor for connecting the ribbon with the solar panel junction box. This ribbon wire is usually 1 – 6 mm wide and 0.08 – 0.5 mm thick with a tin/solder coating of 10-30 microns for minimizing copper erosion.
The process of manufacturing PV Ribbon involves annealing and cleaning of copper wires followed by hot dipping them into a solder alloy. The solder alloy used for dipping the copper wires has to be high performing, reliable and capable of effectively preventing copper erosion in accordance with the photovoltaic industry standards. Another important consideration here will be minimized oxide formation or drossing of the alloy during the coating process.
Tin-Lead based alloys have long been the material of choice for coating PV ribbon capable of matching the needs of photovoltaic applications. However, the introduction of the RoHS directive has necessitated the complete avoidance of lead based solder alloys – an industry development that is now leading alloy manufacturers towards developing lead-free alternatives. Alpha Assembly Solutions has been a pioneer in this field, bringing forth a revolutionary product known as ALPHA® EcoSol – a lead-free and low melting point solder alloy that offers performance attributes that are comparable with tin-lead alloys, is cost effective and is specifically designed to meet the needs of PV Ribbon Tinning and cSi Module Assembly. You can trust this product for your photovoltaic manufacturing requirements.
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