A >200 Wh kg−1 anode-free Na pouch battery at −40°C enabled by manipulating electrolyte equilibrium

ABSTRACT Cryogenic energy-dense batteries are essential for cold-climate applications. Anode-free configuration raises great opportunities for maximizing the cell-level energy density of batteries. However, high energy density of low-temperature anode-free batteries is still plagued by the lack of c... View More