Currently, tremendous efforts have been made to obtain a single efficient energy storage
device with both high energy and power density, bridging the gap between supercapacitors …

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 …

Oxygen‐containing functional groups (OFGs) grafted by carbon materials surface can serve
as active sites to reversibly store potassium and simultaneously contribute to forming a …

The complicated electrochemical catalytic conversion process of polysulfides in metal–sulfur
batteries involves three steps: adsorption, catalysis, and desorption process. Even as huge …

Transition metal dichalcogenides with high theoretical capacity usually suffer from poor
intrinsic electronic conductivity and drastic volumetric change upon cycling, degrading their …

Porous carbon materials have demonstrated exceptional performance in various energy and
environment-related applications. Recently, research on supercapacitors has been steadily …

Transition-metal selenides (TMSs) have great potential in the synthesis of supercapacitor
electrode materials due to their rich content and high specific capacity. However, the …

Highlights The synthetic strategies and fundamental mechanisms of various asymmetric
carbon-and silica-based nanomaterials were systematically summarized. The advantages of …

The fundamental understanding on the relationship between the intrinsic textures and
sodium storage performances of carbonaceous anodes is essential for the development of …

A dual‐ion battery‐supercapacitor hybrid device (DIB‐SCHD), cleverly integrating a dual‐
ion battery (DIB) and a supercapacitor (SC), is expected to endow both the high energy …