Mesoporous TiO2 Nanofibers as Advanced Sulphur Host Materials for Lithium Storage

With the development of the science and technology, many electric vehicles have been emerged in the markets. Therefore, advanced energy storage systems must provide sufficient energy for the electric vehicles. Among many energy systems, Li-S batteries are the most suitable system for them due to their high specific capacity and energy density. However, the poor cycle stability is the main obstacle for the application into electric vehicles. Herein, mesoporous TiO2 nanofibers are prepared and used as advanced host materials for sulfur in the Li-S batteries. The mesoporous TiO2 nanofibers could adsorb the polysulfide and promote the transport or electronics during discharge and charge cycles. As a result, the MTO/S composites show excellent electrochemical performance.