Solar PV Ribbon for connector solar cells in solar panel and module:

PV ribbon is composed of Copper and coating alloys, and divided into Tabbing Ribbon and Bus bar ribbon.

• Tabbing Ribbon: it is commonly connects the positive and negative sides of the cells in series.

• Bus bar Ribbon: it is concentrate the cell stringing into junction box and channels electrical current.




Features and Applications:   

The item (tin coated copper welding ribbon) is based on size of Width*Thickness: 1.5*0.2 mm (it also can be 1.5-2.5mm * 0.08-0.25mm as your option),

sale as per lot, 2kgs/lot.

if you want buy more or less quantity, pls contact us, we will correct the price and freight cost for you. 

1) welding ribbon for big power solar panel:

Copper base	electrician Park copper (TR line) rolling or T2 copper tape slitting
Copper substrate resistivity	ρ ≤ 0.0172Ωmm2 / m
Solder Composition	62% Sn36% Pb2% Ag; 60% Sn40% Pb; 96.5% Sn3.5% Ag (Bi optional)
The thickness of the tin layer	10μm-40μm, sided uniform
Thickness deviation	≤ 0.008
Width deviation	the rolled products ≤ 0.1mm; slitting Commodities ≤ 0.005mm
Elongation	the soft state ≥ 20%; semi-soft state ≥ 15%
Specifications	width 1.5mm-2.5mm; thickness 0.08mm-0.25mm. (here is 1.5*0.2 mm)
Packaging	cardboard, " I shape" wheel, box
Suitable for DIY solar cell and solar panel, also suitable for machine automatic welding middle without decapitation; crop for customers

2) welding ribbon for epoxy solar panel etc. mini solar panel: 

 

PV copper base material with high purity TUl oxygen-free copper(copper content≥99.97％,conductivity≥100％,resistivity≤0.0165Ωmm²/m),through the strict production process:Rolling→Surface cleaning→Hot tin-plate→Spool/Round plate/Fixed-length cutting,that finished the PV ribbon product.

PV copper(normal)Physical                      PV ribbon(normal) Physical

1:Tensile strength:≥200N/mm²             1:Tensile strength:≥150N/mm²

2:Yield strength:≤60N/mm²                 2:Yield Strength:≤60N/mm²

3:Extensibility:≥25％                        3:Extensibility:≥20％

4:Vickers hardness:≤45Hv




3) Bus-bar for big power solar panel: