INTERCONNECTOR MATERIAL FOR SOLAR CELL, INTERCONNECTOR FOR SOLAR CELL, AND SOLAR CELL WITH INTERCONNECTOR

• Main Authors: TOMOMORI, TATSUO, TSUDA, TOSHIYA, YOSHIOKA, KOH
• Format: Patent
• Language: English; French; Japanese
• Published: 14.11.2013
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CONDUCTORS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SEMICONDUCTOR DEVICES; SOLDERING OR UNSOLDERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

Provided is an interconnector material for a solar cell, characterized in having, on the surface of an Al substrate having a tensile strength of 81 to 100 N/mm2, an Ni plating layer and an Sn plating layer, in sequence from the substrate side. According to the present invention, it is possible to effectively prevent deformation and breakage of the silicon crystal wafer (crystal Si) during bonding, and provide an interconnector material for a solar cell that can be readily wound on a bobbin or a reel. L'invention se rapporte à un matériau d'interconnecteur destiné à une cellule solaire, qui est caractérisé en ce qu'il comprend, sur la surface d'un substrat d'Al ayant une résistance à la traction de 81 à 100 N/mm2, une couche de revêtement de Ni et une couche de revêtement de Sn, dans cet ordre à partir du côté du substrat. Selon la présente invention, il est possible d'empêcher efficacement la déformation et la rupture de la tranche de cristal de silicium (Si cristallin) pendant la liaison, et d'obtenir un matériau d'interconnecteur destiné à une cellule solaire qui peut être facilement enroulé sur un rouleau ou une bobine.