About the Seminar:
With the growing demand for electric vehicles, grid-scale batteries, and high-power devices, new high-rate batteries are needed. Currently, graphite is the current commercial level anode material, however graphite can suffer from dendrite formation at high-rates. These dendrites can then short circuit and destroy the battery. Nb16W5O55 emerged as an alternative high-rate anode material for Li-ion batteries in 2018 [Griffith et al., Nature 2018, 559 (7715), 556–563]. This exciting discovery ignited research in Wadsley–Roth (W–R) compounds, but systematic experimental studies have not focused on how to tune material chemistry and structure to achieve desirable properties for energy storage applications. In this work, we systematically investigated how structure and composition influences capacity, Li-ion diffusivity, charge–discharge profiles, and capacity loss in a series of W–R compounds.
