Influence of Metastable Disorder in Titanium Oxyhydroxides on High-Rate Sodium Ion Storage
Dnyanesh Vernekar·Srinivasan Ramakrishnan·Gi‐Hyeok Lee·Reshma Devi·Mohamed Ruwaid Rafiuddin·Gopalakrishnan Sai Gautam·Wei Yang·Soumyajit Gupta
The inability of graphite to store Na+ ions at low potentials necessitates the use of disordered materials as anodes in Na-ion batteries, wherein complex degradative pathways limit cycle life. This study delineates the influence of synthetically induced material disorder in facilitating stable, high-rate sodium ion storage in a series of anatase titania analogs. The degree of disorder in the titanium oxyhydroxide (TiOx(OH)y-Tanneal) materials, synthesized via a simple, solution-phase sol–gel pro