Cu3V2O7(OH)(2)center dot 2H(2)O (CVO) nanoribbons are fabricated through a facile hydrothermal approach, showing a layered structure and multiwater framework proven by TEM, XRD, and FT-IR measurements. The CVO nanoribbon electrode exhibits a specific capacitance of 121 F g(-1) at a current density of 500 mA g(-1) in 1.0 M KNO3. While PANI materials are both coated on and intercalated into the CVO, the specific capacitance is greatly improved to 197 F g(-1).