In an exciting breakthrough for battery technology, new research introduced an iron-based cathode for lithium-ion batteries, offering numerous benefits over traditional materials. According to the journal Science Advances, this collaborative initiative led by Oregon State University chemistry researcher Xiulei “David” Ji could revolutionize the battery industry.
Replacing costly materials like cobalt and nickel, iron shows promise for higher energy density, significantly lower costs, and enhanced safety in lithium-ion batteries. With iron being abundantly available, this development marks a crucial step towards more sustainable battery technology.
Ji highlighted the significance of this research, stating, “We’ve transformed the reactivity of iron metal, the cheapest metal commodity, to offer a higher energy density than current cathode materials in electric vehicles.” The cost-effectiveness of iron, which is a small fraction of nickel and cobalt, could substantially reduce the overall cost of battery production.
Additionally, iron-based cathodes could address the looming supply shortages of nickel and cobalt, crucial elements in high-energy lithium-ion batteries. Moreover, iron’s sustainability and safety make it an ideal candidate for future battery chemistry.
Ji and his collaborators improved the reactivity of iron by designing a chemical environment with a blend of fluorine and phosphate anions. This blend allows for the reversible conversion of iron powder, lithium fluoride, and lithium phosphate into iron salts, enhancing the battery’s performance.
While storage efficiency still needs improvement, Ji is optimistic about the commercial availability of this technology. With the potential to offer better performance, lower costs, and environmental benefits, the iron-based cathode could transform the battery industry. Ji urges industry visionaries to invest in this emerging field, emphasizing the sustainability and cost-effectiveness of iron compared to cobalt and nickel.
