Low melting point solar cell tab wire for solar cell soldering solar panel manufacturing

Specifications

Solar cell tab wire  connects the positive and negative sides of solar cell in series.

Mechanical Property:

1,Elongation ≥25%

2,Tensile strength≥170MPa

3,Side camber: L≤3mm/m

4.Yield strength ≤65MPa

5.Soldering tin melting point: 180−230°c

Core Copper of TU1 Off-Cu :

1,Copper Purity ≥99.97%, Oxygen≤10ppm

2,Resistivity:ρ_20≤0.017241Ω • m m²/m

Electric Resistivity of Ribbon:

 (2.1−2.5)X10^-2 • mm²/m

Plated Thickness:

0.015-0.025mm per side

Composition of Plated Material:

1)    Lead series products:

A,Sn 60%, Pb 40%

B,Sn 63%, Pb 37%

C,Sn 62%, Pb 36%, Ag 2%

D,Sn 60%, Pb 39.5%, Ag 0.5%

2)    Lead-free series products:

A.Sn 96.5%, Ag 3.5%(Bi)

B.Sn 97%, Ag 3% and so on

Solar cell tab wire specification

Manufacturing Process

Copper round wire→ Flattening& Annealing → Tin-plating → Spooling → Packing

Our core competencies

1.Forming of round wires to flat wires through drawing and rolling

2.Heat Treatment

3.Hot-dip tinning

4.Precise spooling

  1. 4kg per spool with vacuum package, 4spools a carton box with dustproof & shockproof &waterproof for long transportation

  2.  Cutting packing

 OEM service; Design service; buyer label offer service; Low MOQ

Baoding Edel New Energy Corp.,Ltd  is a high-tech enterprise  which specializes in photovoltaic products research and development ,production and sales.The main products are  PV Ribbon, Solar cell tab wire ,Bus Bar,PV junction box  etc.

Storage Conditions and Shelf Life:

Tabbing wire should be stored in dry and ventilated room, where should be no acid, alkali, or harmful gas and the indoor relative humidity should not exceed 60%.  Place it horizontally while stacking and avoid the carton extrusion, meanwhile, the stacking quantity of same product should not exceed five layers or 1 ton.  The shelf life can be up to 12 months since the production date.