Room‐temperature rechargeable sodium‐ion batteries appear to be promising alternatives
for grid and other storage applications to lithium‐ion batteries because of the natural …

We report reversible electrochemical insertion of NO 3 − into manganese(II, III) oxide (Mn 3
O 4 ) as a cathode for aqueous dual‐ion batteries. Characterization by TGA, FTIR, EDX, …

Identifying suitable electrode materials for sodium‐ion and potassium‐ion storage holds the
key to the development of earth‐abundant energy‐storage technologies. This study reports …

The interactions between charge carriers and electrode structures represent one of the most
important considerations in the search for new energy storage devices. Currently, ionic …

Secondary batteries using multivalent cations as ionic charge carriers have attracted increasing
attention in recent years due to the high theoretical energy density provided by multi‐…

Rechargeable potassium‐ion batteries (KIBs) have demonstrated great potential as alternative
technologies to the currently used lithium‐ion batteries on account of the competitive …

Energy storage systems are main drivers in various fields, especially in the context of
energy and mobility transition. Battery technologies are one of those options offering good …

Concentrated potassium acetate as a water-in-salt electrolyte provides a wide potential
window from −1.7 to 1.5 V vs Ag/AgCl KCl sat. . It facilitates the reversible operation of KTi 2 (PO …

Hybrid potassium‐ion capacitors (KICs) show great promise for large‐scale storage on the
power grid because of cost advantages, the weaker Lewis acidity of K + and low redox …

The sluggish ion diffusion and electrolyte freezing with volumetric changes limit the low‐temperature
performance of rechargeable batteries. Herein, a high‐rate aqueous proton battery (…