Titanium Niobium Oxide Ti₂ Nb₁₀ O₂₉ /Carbon Hybrid Electrodes Derived by Mechanochemically Synthesized Carbide for High-Performance Lithium-Ion Batteries.

ABSTRACT: This work introduces the facile and scalable two-step synthesis of Ti₂ Nb₁₀ O₂₉ (TNO)/carbon hybrid material as a promising anode for lithium-ion batteries (LIBs). The first step consisted of a mechanically induced self-sustaining reaction via ball-milling at room temperature to produce titanium niobium carbide with a Ti and Nb stoichiometric ratio of 1 to 5. The second step involved the oxidation of as-synthesized titanium niobium carbide to produce TNO. Synthetic air yielded fully oxidized TNO, while annealing in CO₂ resulted in TNO/carbon hybrids. The electrochemical performance for the hybrid and non-hybrid electrodes was surveyed in a narrow potential window (1.0-2.5 V vs. Li/Li⁺ ) and a large potential window (0.05-2.5 V vs. Li/L

SUBMITTER: Budak O 

PROVIDER: S-EPMC7839535 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature