NOVELTY - A solar cell assembly comprises solar cell with a surface acting as light-receiving surface, first lead electrode bonded to an end portion of one opposite surface of the solar cell, second lead electrode bonded to the other opposite surface, and metallic sheet bonded to the opposite surfaces of the second lead electrode. The metallic sheet has a lower coefficient of thermal expansion than the second lead electrode.    USE - For use in photovoltaic electric generator of concentrator type (claimed) used in converting a concentrated solar radiation energy into an electric energy.    ADVANTAGE - The inventive solar cell assembly is arranged to minimize a risk of cracking of a solar cell upon soldering of lead electrodes to the solar cell.    DETAILED DESCRIPTION - A solar cell assembly comprises solar cell with opposite surfaces (1a, 1b), where one surface acts as light-receiving surface, a first lead electrode (2A, 2B) bonded to an end portion of one opposite surface of the solar cell, a second lead electrode (3) bonded to the other opposite surface, and metallic sheet bonded to the opposite surface of the second lead electrode. The metallic sheet (4) has a lower coefficient of thermal expansion than the second lead electrode.    An INDEPENDENT CLAIM is also included for a photovoltaic electric generator concentrator type comprising an array of solar cell assemblies, each including a solar cell and electrically conductive members in the form of metallic foils connected to the solar cell, heat dissipating layer formed of a synthetic resin containing a thermally conductive filler, and base plate to which each of the solar cell assembly is fixed through the heat dissipating layer. The solar cell of each assembly is embedded in the dissipating layer.    DESCRIPTION OF DRAWING(S) - The drawing shows an elevational view in cross-section of the solar cell assembly.    Opposite surfaces (1a, 1b)    First lead electrode (2A, 2B)    Second lead electrode (3)    Metallic sheet (4)