Enhanced cycling performance and electrochemical reversibility of a novel sulfur-impregnated mesoporous hollow TiO2 sphere cathode for advanced Li–S batteries

A novel, designed sulfur-impregnated mesoporous hollow TiO2 sphere cathode with a 68 wt% S loading was efficiently tailored for advanced Li-S batteries, and yielded an intriguing capacity retention (71%) and a high coulombic efficiency (93%) over 100 cycles, at a 1 C rate.