Novel Na2TiSiO5 anode material for lithium ion batteries

Abstract

Na₂TiSiO₅ is investigated as a novel anode of the lithium ion battery for the first time. The low working potential (above 0.1 V) and high capacity (>300 mA h g⁻¹) give this material a high energy density, along with improved safety. After 100 cycles, the capacity retention remains at 94%. Furthermore, possible Li⁺-occupied sites and the migration path in the Na₂TiSiO₅ structure are also calculated and discussed in this work.