
Iron-mediated cathode enables 206 Wh/kg sodium-ion pouch cell
A research group in China has developed an iron-mediated strategy to improve the stability and energy density of sodium-ion batteries. The researchers incorporated iron into a sodium-deficient manganese-magnesium-iron layered oxide (Na₂/₃Mn₇/₁₂Mg₁/₄Fe₁/₆O₂, or NMMF) cathode, making its lattice-oxygen reactions more reversible…


