Looming concerns regarding scarcity, high prices, and safety threaten the long-term use of lithium in energy storage devices. This concern has prompted a team of researchers from Rensselaer Polytechnic Institute to propose a greener, more efficient, and less expensive energy storage alternative.
In their research, the team asserts that calcium ions could be used as an alternative to lithium ions in batteries because of their abundance and low cost. While the larger size and higher charge density of calcium ions relative to lithium impair diffusion kinetics and cyclic stability, the research team offers oxide structures containing big open spaces (heptagonal and hexagonal channels) as a prospective solution.
In their work, they demonstrated aqueous calcium–ion batteries using orthorhombic, trigonal, and tetragonal polymorphs of molybdenum vanadium oxide (MoVO) as a host for…
Researchers propose greener, more efficient, low-cost energy storage alternative
