A series of single-crystalline alkaline earth metal germanate nanowires, including calcium germanate (Ca2Ge7O16), strontium germanate (SrGe4O9) and barium germanate (BaGe4O9) are synthesized by a low-cost, large-scale hydrothermal route. These one-dimensional germanate nanowires represent a new class of anode material for use as Li-ion battery materials with superb lithium storage capacities, cycle performance and rate performance.
