Encapsulating a photovoltaic module

The present invention relates to a photovoltaic module encapsulant (22) intended to encase a photovoltaic cell (10), constituted by a composition comprising no crosslinking agent and comprising: an ethylene-alkyl acrylate copolymer, said copolymer representing between 70% and 96% of the weight of said composition; a silane, representing between 0.1% and 2% of the weight of said composition; characterized in that it further comprises an ethylene - acrylic ester - maleic anhydride or glycidyl methacrylate terpolymer, said terpolymer being from 2% to 29.9% by weight of said composition. The invention also relates to a use of such an encapsulant in a photovoltaic module and a photovoltaic module incorporating such an encapsulant.