Patent ID: 7847184
Filing Date: 2010-12-07
Classification: B32B,H01L,Y02E,Y10T

Abstract:
1. A solar cell module comprising: (a) a first encapsulant layer comprising a thermoplastic film or sheet consisting of two surface layers and one inner layer, wherein (i) each of said two surface layers consists essentially of an acid copolymer, an ionomer, or a combination thereof; and (ii) said one inner layer consists essentially of an ethylene acrylate ester copolymer; (b) a solar cell layer comprising one or a plurality of electronically interconnected solar cells and having two opposite surfaces, a light-receiving surface and a rear surface; and (c) an optional second encapsulant layer; wherein when said optional second encapsulant layer is present said first and optional second encapsulant layers are laminated to each of said two opposite surfaces of said solar cell layer; wherein said acid copolymer comprises a finite amount of polymerized residues of an α-olefin and greater than or equal to about 1 wt% of polymerized residues of an α, β-ethylenically unsaturated carboxylic acid, based on a total weight of said acid copolymer; and wherein said ionomer is a derivative of a parent acid copolymer comprising a finite amount of polymerized residues of an α-olefin and greater than or equal to about 10 wt% of polymerized residues of an α, β-ethylenically unsaturated carboxylic acid, based on a total weight of said parent acid copolymer and having about 10 to 100% of a total carboxylic acid content neutralized with metallic ions.