The importance of “going nano” for high power battery materials

► Flame spray pyrolysis Li4Ti5O12 nanoparticles were successfully synthesized. ► Li4Ti5O12 nanoparticles show very reversible lithium insertion performance. ► Electrodes composed of Li4Ti5O12 nanoparticles show superior rate performance (100 C). ► Li4Ti5O12 electrodes offer a capacity retention of 94.8% after 1000 cycles at 10 C.