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:
