1results about How to "Reduce sintering cost" patented technology

The invention relates to the photovoltaic field, and provides a photovoltaic cell preparation method, a sintering device, a photovoltaic cell and a photovoltaic module, the photovoltaic cell preparation method comprises the following steps: providing a cell substrate; preparing a copper paste layer on the surface of the cell substrate; performing first microwave treatment on the battery substrate, and heating the copper paste layer to a first temperature; performing second microwave treatment on the battery substrate, and heating the copper paste layer to a second temperature; the first temperature is lower than the second temperature; and the copper paste layer is subjected to electromagnetic treatment, and the copper paste layer forms an electrode, so that good ohmic contact and sintering cost are considered.