Direct growth of FePO4/graphene hybrids for Li-ion and Na-ion storage

An environmentally friendly method has been developed for the direct growth of FePO4 nanospheres on graphene nanosheets with uniform morphology and high conductivity of 3.2 S cm(-1). The nanoassembled FePO4/graphene hybrids exhibit superior Li-ion and Na-ion storage performance, e.g. high rate capability and good capacity retention upon cycling. (C) 2013 Elsevier B.V. All rights reserved.