We prepared nanocrystalline Ti2/3Sn1/3O2 by a coprecipitation method starting from Ti(isopropoxide)4 and SnCl4 center dot 5H(2)O followed by calcination at 600 degrees C. TEM and XRD measurements reveal crystallite sizes of about 5 nm and a crystal structure equivalent to those of TiO2 rutile and SnO2 cassiterite. The local structure was investigated with Sn-119 NMR and Sn Mossbauer spectroscopy. The material was cycled with C/20 at voltages between 3.0 and 0.02V against Li metal. Specific capacities of 300 mAh g(-1) were obtained for 100 cycles with voltage profiles very similar to those of pure SnO2. Faster cycling leads to strong decrease of the capacities but after returning to C/20 the initial values are obtained. (C) 2011 Elsevier B.V. All rights reserved.