Photovoltaic module comprising an encapsulation structure based on at least one polymer material and locally softened

A photovoltaic module comprising:

• a photovoltaic unit comprising a plurality of photovoltaic cells electrically connected in series and spaced apart from one another, adjacent photovoltaic cells being electrically connected pairwise by a metal interconnector which extends at least in part into an interconnection space separating said adjacent photovoltaic cells,
• an encapsulation structure based on at least one polymer encapsulation material, which sandwiches opposite sides of the plurality of photovoltaic cells, defining a region of cell coverage, and sandwiches the interconnector in the interconnection space, defining a region of interconnector coverage, wherein the polymer encapsulation material makes contact over a surface area of the plurality of photovoltaic cells and over a surface area of the interconnector, and
• a spacer incorporated into the encapsulation structure and partially superposed on the interconnector in the region of interconnector coverage, the spacer being made of a material having at least, at a temperature of −40° C., a modulus of elasticity lower than a modulus of elasticity of the polymer encapsulation material.