Improving the performance of a non-aqueous lithium-air battery by defective titanium dioxides with oxygen vacancies

Synthesis and Progress of New Oxygen‐Vacant Electrode Materials for High‐Energy Rechargeable Battery Applications

“…I) Raman spectra of TiO 2 and H‐TiO 2 at an excitation wavelength of 532 nm. Reproduced with permission . Copyright 2016, Elsevier.…”

“…G) Initial discharge capacity measured at the current densities of 0.3 mA cm −2 . Reproduced with permission . Copyright 2016, Elsevier.…”

“…Detailed studies of the physical properties, chemical properties, and electrochemical performance of rutile TiO 2 in nonaqueous Li–O 2 batteries have been performed. Wang et al reported the use of TiO 2 with oxygen defects (H‐TiO 2 ) as negative electrode catalysts in nonaqueous Li–O 2 batteries, which exhibited enhanced electrochemical performance. The H‐TiO 2 catalysts were obtained via a simple rutile TiO 2 heat treatment, and XPS and Raman spectra (Figure I) proved the presence of oxygen defects.…”

Carbon‐Free Cathode Materials for Li−O2 Batteries

“…Compared to carbon, TiO 2 electrode itself is more stable and electrolyte TEGDME is stable on TiO 2 electrode, hence a cycling performance of more than 140 cycles at high current densities is achieved. Wang et al . used TiO 2 with oxygen vacancies acting as the catalyst in Li−O 2 cells.…”

Design and synthesis of H-TiO2/MnO2 core–shell nanotube arrays with high capacitance and cycling stability for supercapacitors

“…state, while Ti 3? state accounts for the other two weak peaks at 463.8 and 458.0 eV[45]. Mn 2p spectrum on the bottom presents two primary peaks centered at 654.3 and 642.5 eV, which could be ascribed to Mn 2p 1/2 and Mn 2p 3/2 for Mn 4?…”