Energy materials are vital to energy conversion and storage devices that make renewable
resources viable for electrification technologies. In situ transmission electron microscopy …

Instability at the solid electrolyte interface (SEI) and uncontrollable growth of potassium
dendrites have been pressing issues for potassium‐ion batteries. Herein, a self‐supporting …

Future innovations and developments in advanced rechargeable batteries require atomic-
scale observation and understanding of the failure mechanisms of secondary batteries …

Hard carbon (HC) is a promising anode material for K+-storage due to its randomly oriented
turbostratic structure. However, most reported HC anodes exhibit low initial coulombic …

Potassium metal battery is an appealing candidate for future energy storage. However, its
application is plagued by the notorious dendrite proliferation at the anode side, which entails …

Prussian blue analogues (PBAs) cathodes can host diverse monovalent and multivalent
metal ions due to their tunable structure. However, their electrochemical performance suffers …

The high specific capacity of alkalic metal (Li, Na, and K) anodes has drawn widespread
interest; however, the practical applications of alkalic metal anodes have been hampered by …

The 3D nanocomposite structure of plated lithium (LiMetal) and solid electrolyte interphases
(SEI), including a polymer‐rich surficial passivation layer (SEI exoskeleton) and inorganic …

Potassium metal batteries (PMBs), with high energy density and low cost, are considered a
promising option for grid‐scale energy storage systems. However, challenges such as the …

Electrochemically oxidized amorphous iridium oxides (IrO x) offer significantly improved
electrocatalytic activities on the oxygen evolution reaction (OER) compared to crystalline …