We make Bus Ribbon for solar cell tabbing and string interconnect ribbon that is used in crystalline and thin film modules.

Bus bar Ribbon / Tin coated copper wire  Application scope:

It shall increase the efficiency of battery, lower the cost and improve the quality and pass rate for the manufacturer.

 

PV Ribbon Material

Cu99.99%

Plating thickness

0.015  ~  0.03 mm

Visual			1). There shall be no flows.
			2). Thsurface shall be uniformly lustrous hue.
			3). The surface shall be free from thick

Coating process :  Hot-dip tinning

 Tensile:   Extra soft, < 235 MPa

 E

5.1 Chemical Composition

Item

Specification

Composition

Impurity

Solder

Sn

Pb

Cu

Sb

Zn

Fe

As

Ni

Bi

Cd

Al

63

Bal.

<0.03

<0.1

<0.002

<0.02

<0.03

<0.01

<0.1

<0.002

<0.002

±1.0

5.2 Physical Characteristic

Alloy Designation

Melting Point

Specific Gravity

Sn63/Pb37

183°C

8.4g/cm3

5.3  Solderability

Item

Specific

Test Methods

Spread Factor

>93%

JIS Z3197-86

Bus bar ribbon