NOVELTY - A solar cell module (20) comprises a first encapsulant layer (10); a solar cell layer (12) including electronically interconnected solar cells and having two opposite surfaces, a light-receiving surface and a rear surface; and optionally a second encapsulant layer (14). The first encapsulant layer has a total thickness of 0.1-20 mils (0.003-0.51 mm). The first encapsulant layer comprises at least one surface layer made of an ionomer composition derived from a partially or fully neutralized acid copolymer of an alpha -olefin and an alpha ,beta -ethylenically unsaturated carboxylic acid (18-25 wt.%).    USE - For converting light energy into electrical energy.    ADVANTAGE - The solar cell module includes encapsulant layers with enhanced stability and adhesion. The high-acid ionomer compositions provide an encapsulant layer with enhanced adhesion, clarity, percent light transmission and other physical properties. The high-acid ionomer composition provides significant enhancement in adhesion to the other solar cell laminate layers, especially to the rigid support layers (e.g., the glass layer) without the need for the incorporation of adhesion promoters and additives or the need for the application of primers to the glass or other solar cell laminate layers. The high-acid ionomer surface layer also makes the multilayer encapsulant layer tack-free and prevents it from blocking when rolled or stacked in storage or when manipulated during the production of the solar cell laminates. The presence of the surface layer that is made of zinc-neutralized, high-acid content ionomers reduces the impact of adhesion of the encapsulant layer when it is conditioned at high relative humidity (RH) environments. The encapsulant layers provide the highly desirable ability for laminators to significantly reduce or avoid complicated solar cell encapsulant layer conditioning or storage processes, thereby greatly simplifying the overall solar cell lamination process.    DETAILED DESCRIPTION - A solar cell module (20) is prepared from an assembly. The assembly comprises a first encapsulant layer (10); a solar cell layer (12) comprising electronically interconnected solar cells and having two opposite surfaces, a light-receiving surface and a rear surface; and optionally a second encapsulant layer (14). The first encapsulant layer has a total thickness of 0.1-20 mils (0.003-0.51 mm). The first encapsulant layer comprises at least one surface layer including an ionomer composition derived from a partially or fully neutralized acid copolymer of an alpha -olefin and an alpha ,beta -ethylenically unsaturated carboxylic acid (18-25 wt.%) based on the total weight of the copolymer. The first encapsulant layer is positioned next to the light-receiving surface of the solar cell layer. The second encapsulant layer is positioned next to the rear surface of the solar cell layer. The acid copolymer is 10-100 (preferably 10-50)% neutralized with metallic ion(s) based on the total carboxylic acid content. The first encapsulant layer further comprises additional polymeric layers comprising polymers. An INDEPENDENT CLAIM is included for manufacturing a solar cell module involving providing an assembly comprising, from top to bottom, an incident layer, a first encapsulant layer, a solar cell layer including electronically interconnected solar cells, an optional second encapsulant layer, and a back-sheet; and laminating the assembly to form the solar cell module.    DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of the solar cell module.    first encapsulant layer (10)    solar cell layer (12)    second encapsulant layer (14)    incident layer (16)    backing layer (18)    solar cell module. (20)