Potassium ion energy storage devices are competitive candidates for grid-scale energy
storage applications owing to the abundancy and cost-effectiveness of potassium (K) …

Activated carbons are one of the most important classes of high‐surface‐area porous
materials. Owing to their unique structure, low price, and large‐scale production technology …

Aqueous rechargeable zinc‐ion batteries (ARZBs) are impeded by the mutual problems of
unstable cathode, electrolyte parasitic reactions, and dendritic growth of zinc (Zn) anode …

Sodium-and potassium-ion (Na-/K-ion) hybrid capacitors are promising electrochemical
energy storage systems that are more cost-effective than corresponding lithium-based …

Aqueous Zn-ion hybrid supercapacitors (ZHSs) are increasingly being studied as a novel
electrochemical energy storage system with prominent electrochemical performance, high …

The development of electrode materials with the capability of balancing kinetics and
capacity between a battery-type anode and capacitor-type cathode is still a grand challenge …

In the past 10 years, preeminent achievements and outstanding progress have been
achieved on sodium‐ion capacitors (SICs). Early work on SICs focussed more on the …

Metal oxides are considered as prospective dual-functional anode candidates for potassium
ion batteries (PIBs) and hybrid capacitors (PIHCs) because of their abundance and high …

Carbon nanomaterials show potential in achieving good potassium ion storage; however,
the limited interlayer spacing in existing carbon nanomaterials greatly impacts the …

Alkali metal‐ion capacitors integrate two electrodes from both batteries and supercapacitors
(SCs), combining the advantages of large capacity, high‐rate performance, and long cycle …