A simple and versatile method for preparation of NH 4 V 4 O 10 nanorods is developed via a simple hydrothermal route. NH 4 V 4 O 10 nanorods display better cycling stability than NH 4 V 4 O 10 microflowers as a cathode material for sodium-ion batteries because of the changes in crystalline structure, which would be in favor of superior discharge capacity. Furthermore, the enhancement of electrochemical performance for NH 4 V 4 O 10 nanorods at high current rates is offered in addition of fluoroethylene carbonate to electrolyte. Such a good performance results from the improvement of reaction kinetics and Na-ion transfer rate.