NOVELTY - A sealing material (12) consists of a sheet comprising 0.1-1 parts mass fluorine-containing oligomer with respect to 100 parts mass ethylene-vinyl acetate copolymer, and has peeling strength of 15 N/cm or more. The peeling strength of the material is measured by accumulating sealing material on a glass plate, carrying out vacuum degassing, bonding the glass plate, crosslinking by heating at 150 degrees C, cutting out the resultant material in strip shape of preset width and length to obtain a test sample, and measuring 180 degrees peeling strength at 23 degrees C and tensile velocity of 100 mm/minute.    USE - Sealing material is used for solar cell modules (claimed).    ADVANTAGE - The sealing material provides solar cell modules with excellent durability even at high voltage, transparency, flexibility, and power generating efficiency, and reduced thickness.    DETAILED DESCRIPTION - A sealing material consists of a sheet containing 0.1-1 parts mass fluorine-containing oligomer with respect to 100 parts mass ethylene-vinyl acetate copolymer, and has peeling strength of 15 N/cm or more. The peeling strength of sealing material is measured by accumulating the sealing material on a glass plate having thickness of 3.2 mm, carrying out vacuum degassing at 128 degrees C for 4 minutes, bonding the glass plate for 2 minutes, crosslinking by heating at 150 degrees C for 30 minutes, cutting out the resultant material in strip shape with width of 10 mm and length of 100 mm to obtain a test sample, and measuring 180 degrees peeling strength at 23 degrees C and tensile velocity of 100 mm/minute using tensile testing machine. An INDEPENDENT CLAIM is included for solar cell module (10), which has pair of photovoltaic cells (11), and a sealing material between photovoltaic cells.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the solar cell module.    Solar cell module (10)    Photovoltaic cell (11)    Sealing material (12)    Transparent protective material (13)    Back sheet (14)