Vanadium pentoxide nanowires (VONs) with a uniform thickness of 15 nm were synthesized to use as an electrode for reversible lithium storage. The VONs after two years of aging time exhibit a high reversible lithium storage capacity and an excellent rate capability at a current density of 37 mAg(-1) and 74-740 mAg(-1), respectively, in the test voltage range of 0.1-3.0 V versus Li/Li+. Moreover, the VONs show a constant reversible specific capacity similar to 945 mAhg(-1) after 50 cycles at 74 mAg(-1). The good electrochemical performances of VONs are attributed to the robust interlayer structure and improved electrical conductivity. These aging effects in VONs can be exploited to fabricate one-dimensional electrode materials for high-performance Li-ion batteries. (C) 2015 Elsevier B.V. All rights reserved.