What materials used in solar panels?

Solar panel material list

Solar cell

1.Cell efficiency:(Cell power / cell area)*1000;
For example:5W monocrystalline silicon solar cell efficiency:(5W/15.6CM*15.6CM)*1000=20.55%;

2.Number of cell
1640 panel:60pcs cells, arrangement:6*10;
1950 panel:72 pcs cells, arrangement: 6*12

3.Voltage of single cell:0.5V/piece, open circuit voltage:0.6-0.7V/piece；
For example:1640 panel，voltage:60*0.5V/piece=30V, open circuit voltage:60*(0.6-0.7V)=37-38V.

TPT backboard

The TPT backboard is located on the back of the solar panel to protect and support solar cells, and has reliable insulation, water resistance and aging resistance.

EVA

In the case of high temperature melting, bonding solar cells and toughened glass.

Junction box

1. 3 sets of diodes.

2. After the panel is packaged, the junction box is filled with glue to prevent the water conducting electricity.

3. Waterproof level: IP67.

Aluminum alloy frame

1640 panel size: 1640*992*40*35mm

1950 panel size: 1950*992*40*35mm

Encapsulant

Fixed aluminum alloy frame.

Photovoltaic ribbon

Connect each solar cell and conduct electricity.