▎ 摘　　要

NOVELTY - Carbon-based counter electrode comprises metal wire as a conductive base, and a layer of carbon-based film covered on the surface of the metal wire. The metal wire includes pure metal fiber, alloy wire, metal-plated fiber, and metal wrapping wire. The pure metal includes gold, silver, platinum, copper, titanium, or aluminum. The alloy wire includes stainless steel. The type of the carbon-based film is carbon nanotube film, graphene film, or carbon nanotube and graphene mixed film. USE - The carbon-based counter electrode is useful in fiber dye-sensitized solar cell (claimed). ADVANTAGE - The carbon-based counter electrode has high conductivity and high catalytic activity, simple preparation technique, low price, and provides dye-sensitized solar cell with high performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing carbon-based counter electrode; and use method of carbon-based counter electrode in fiber dye-sensitized solar cell.