Photovoltaic panel aluminum material cutting method

What are the primary techniques and materials used in solar panel construction?

Building a solar panel involves using crystalline silicon cells. These are covered by a strong glass plate and a back polymer sheet. They are all held together in a durable aluminum frame.

How were PV panels shredded?

The shredder’s opening allowed for roughly 30 cm × 30 cm panel sections, which were cut with an electric hand saw. The PV panel pieces were shredded with and without the backing material.

How to make solar aluminum frames more corrosion-resistant?

In order to make the frame more corrosion-resistant, the oxide film thickness of the solar frame profile is generally thicker than the film thickness of the material, and the corrosion resistance is stronger. Generally, there are two types of solar aluminum frames: black oxidation and natural oxidation.

How is photovoltaic waste treated in India?

India recycling regulations: As of now, India lacks specific rules and regulations dedicated to the management of photovoltaic (PV) panel waste, and it is currently treated under general waste regulations (Preet et al., 2023).

How to extract silver from photovoltaic panels?

Pyrolysis and gravimetric separation methods are the most effective, which recovered 91.42 %and 94.25 % silver from crystalline panels and 96.10% silver from CIS PV panels. Yang et al. (2017) used methane sulphonic acid (MSA) with an oxidation agent (hydrogen peroxide) to extract silver from photovoltaic panels.

Can a high-voltage pulse method enrich PV panel waste?

After separation, there was a 30% increment in silver concentration. Moreover, the processing cost of this method is found to be around 0.0019 $/W, making it an economical solution for recycling PV panels. Zhao et al. (2020) performed a parametric investigation on a high-voltage pulse method to enrich PV panel waste.