Description

Core Copper :                     Oxygen free Copper TU1, Copper Purity≥*9.*7% 
Electrical resistivity ：   ≤0.**5Ωmm²/m 
Coating Component：   *6.5%Sn & 3.0%Ag& 0.5%Cu ,  *6.5%Sn & 3.5Ag(Optional) 
Solder Tin Melting Point:  **0℃ ~**0℃ 
Coating Thickness：     One side coating 0.*1 ~ 0.*3mm, with surface bright and smooth 
Width Tolerance :               ±0.*5mm 
Thickness Tolerance：
Tabbing Ribbon：        0.**8mm ~ 0.**5mm
Bussing Ribbon ：        0.*2 mm ~ 0.*1mm 
Tabbing Ribbon Yield Strength：≤*0Mpa 
Elongation：
Tabbing Ribbon（Interconnect）：≥*0%
Bussing Ribbon （Bus Bar ）：≥*5% 
Tensile Strength：
The tensile strength of welded PV Ribbon＞5N/mm
The tensile strength between PV Ribbon and Solar Cell surface ＞3N/mm 
Test Performance:
*- After the wet & freezing test, there is no bubble, surface discoloration and fracture on the ribbon.
 
*- After the damp & heat test, there is no reaction, rust, discoloration or other phenomena between EVA and backplane.
 
*- In the hot plate test, there is no color change or other reaction in 1 minute in **0℃ environment.