NOVELTY - The polymeric coated metallic foil busbar tape (10) comprises a metallic foil, an adhesive layer (16) laminated on a surface of the metallic foil, a first protective polymeric coating laminated on an opposing second surface of the metallic foil, and a second protective polymeric coating, which comprises an anti-corrosive agent, intermediate the metallic foil and the adhesive layer. The first protective polymeric coating comprises an anti-corrosion agent, a tackifier and a plasticizer, and has a glass transition temperature of less than 30 degrees C.    USE - The coated metallic foil busbar tape is useful in a photovoltaic device (all claimed), where the tape is a polymeric coated metallic foil busbar tape.    ADVANTAGE - The coated metallic foil busbar tape enhances reliability, lifespan and efficiency and reduces the production cost of the photovoltaic device, does not require more time and expensive cladding operations to protect the copper, and has an ability to withstand harsh environmental conditions.    DETAILED DESCRIPTION - The polymeric coated metallic foil busbar tape (10) comprises a metallic foil, an adhesive layer (16) laminated on a surface of the metallic foil, a first protective polymeric coating laminated on an opposing second surface of the metallic foil, and a second protective polymeric coating, which comprises an anti-corrosive agent, intermediate the metallic foil and the adhesive layer. The first protective polymeric coating comprises an anti-corrosion agent, a tackifier and a plasticizer, and has a glass transition temperature of less than 30 degrees C. The adhesive layer comprises an adhesive containing conductive particles (25-160 wt.%), and an anti-corrosion agent (0.1-5 wt.%). The protective polymer coating has a thickness of 12.5-25 microns. An INDEPENDENT CLAIM is included for a method of constructing a photovoltaic device.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a polymeric coated metallic foil busbar tape.    Polymeric coated metallic foil busbar tape (10)    Conductive metallic foil (12)    Protective polymeric coating (14)    Adhesive layer (16)    Release layer. (18)