NOVELTY - A solar cell module (201) consists of a silicon substrate (202), a positive electrode (203), a negative electrode (204), a back surface side substrate (212) consisting of a conductive layer (220), and photovoltaic cells (205). A layer insulation material (216) is sealed between the back surface side substrate and photovoltaic cells. The layer insulation material comprises a resin having a carboxyl group. At least surface of the conductive layer of the back surface side substrate has a nickel layer (220a) formed by electroplating.    USE - Solar cell module e.g. back contact-type solar cell module.    ADVANTAGE - Since the time-dependent fall of the adhesiveness of layer insulation material and nickel in wet atmosphere is suppressed, the solar cell module has excellent durability and weather resistance.    DETAILED DESCRIPTION - A solar cell module consists of a silicon substrate, a positive electrode containing P-type semiconductor and a negative electrode containing N-type semiconductor formed on a surface which is other side with respect to the light-receiving surface of the silicon substrate, a back surface side substrate consisting of a conductive layer of predetermined circuit pattern on surface, and photovoltaic cells arranged at intervals with respect to surface on the front side of the back surface side substrate. A layer insulation material is sealed between the back surface side substrate and photovoltaic cells. Each electrode and the conductive layer of the back surface side substrate are electrically connected by electrical-connection components (220A,220B) which penetrate the layer insulation material. The layer insulation material comprises a resin having a carboxyl group. At least surface of the conductive layer of the back surface side substrate has a nickel layer formed by electroplating. When X-ray diffraction intensity of the (111) plane of the crystal lattice, (200) plane, and (220) plane is set to I(111), I(200) and I(220), respectively, the (111) plane orientation index (P') of the nickel layer is 1.1-3, which is calculated using a relation: P'=(3x (I (111)/100))/((I(111)/100)+(I(200)/42)+(I(220)/21)). An INDEPENDENT CLAIM is included for electroconductive laminated material.    DESCRIPTION OF DRAWING(S) - The drawing shows a longitudinal cross-sectional view of principal portion of the back-contact-type solar cell module.    Solar cell module (201)    Silicon substrate (202)    Positive electrode (203)    Negative electrode (204)    Photovoltaic cell (205)    Back surface side substrate (212)    Layer insulation material (216)    Conductive layer (220)    Nickel layer (220a)    Conductive connection components (222A,222B)