Unveiling BaTiO3-SrTiO3 as Anodes for Highly Efficient and Stable Lithium-Ion Batteries.

Abstract

Amidst the swift expansion of the electric vehicle industry, the imperative for alternative battery technologies that balance economic feasibility with sustainability has reached unprecedented importance. Herein, we utilized Perovskite-based oxide compounds barium titanate (BaTiO₃) and strontium titanate (SrTiO₃) nanoparticles as anode materials for lithium-ion batteries from straightforward and standard carbonate-based electrolyte with 10% fluoroethylene carbonate (FEC) additive [1M LiPF₆ (1:1 EC: DEC) + 10% FEC]. SrTiO₃ and BaTiO₃ electrodes can deliver a high specific capacity of 80 mA h g^-1 at a safe and low average working potential of ≈0.6 V vs. Li/Li⁺ with excellent high-rate performance with specific capacity of ~90 mA h g^-1 at low current density of 20 mA g^-1 and specific capacity of ~80 mA h g^-1 for over 500 cycles at high current density of 100 mA g^-1. Our findings pave the way for the direct utilization of perovskite-type materials as anode materials in Li-ion batteries due to their promising potential for Li⁺ ion storage. This investigation addresses the escalating market demands in a sustainable manner and opens avenues for the investigation of diverse perovskite oxides as advanced anodes for next-generation metal-ion batteries.