METHOD OF MONOLITHIC PHOTO-VOLTAIC MODULE ASSEMBLY

摘要

Method for manufacturing a photovoltaic module (1) comprising: a) providing an electrically conductive substrate, the substrate being provided with a predetermined electrical pattern; b) depositing a solder paste (7) onto the electrically conductive substrate at pre-defined interconnection locations; c) placing a first encapsulant layer (3) provided with a pattern of openings onto the electrically conductive substrate, the pattern of openings corresponding with the locations of the solder paste (7); d) placing back-contact solar cells (4) on the first encapsulant layer so as to have a match of the electrical pattern of the back-contact solar cells with the electrical pattern of the electrically conductive substrate; e) placing a second encapsulant layer (5) on the back-contact solar cells (4), and placing a glass layer (6) on the second encapsulant layer (5); f) applying heat and pressure to the components (2, 3, 4, 5, 6, 7) to cause the encapsulant materials to flow and form a monolithic photovoltaic module, characterised by local application of at the interconnection locations utilizing a laser to couple its energy locally into the solar cell from the side of the glass layer, so as to cause the solder paste to reflow between each interconnection location and its respective matching connection location on the back-contact solar cell for establishing electrical interconnection between the back-contact solar cells and the electrically conductive substrate.