The article "Efficient Storage Mechanisms for Building Better Supercapacitors" by Mathieu Salanne et al. reviews recent advancements in understanding and improving the performance of supercapacitors, which are electrochemical energy storage devices. Supercapacitors operate by adsorbing ions from an electrolyte on a high-surface-area electrode, with significant improvements achieved through nanoscale tuning of electrode materials and active roles for electrolytes. The review highlights two main types of supercapacitors: electrochemical double-layer capacitors (EDLCs) and pseudocapacitors. EDLCs use porous carbon electrodes, while pseudocapacitors rely on redox reactions in oxide materials. Recent studies have revealed that nanoporous carbons with subnanometre pores can achieve high capacitances due to ion desolvation, and oxide materials can store charge through surface redox reactions. The authors discuss the challenges in characterizing oxide surfaces and the need for advanced simulation techniques to understand complex interfacial processes. They also explore the structural models of nanoporous carbons, the wetting of pores at null potential, and the desolvation of ions in nanopores. The review emphasizes the importance of combining experimental and simulation tools to optimize charge storage mechanisms and design better supercapacitors. The article concludes by discussing the potential for hybrid supercapacitors and the future prospects for improving energy density and performance.The article "Efficient Storage Mechanisms for Building Better Supercapacitors" by Mathieu Salanne et al. reviews recent advancements in understanding and improving the performance of supercapacitors, which are electrochemical energy storage devices. Supercapacitors operate by adsorbing ions from an electrolyte on a high-surface-area electrode, with significant improvements achieved through nanoscale tuning of electrode materials and active roles for electrolytes. The review highlights two main types of supercapacitors: electrochemical double-layer capacitors (EDLCs) and pseudocapacitors. EDLCs use porous carbon electrodes, while pseudocapacitors rely on redox reactions in oxide materials. Recent studies have revealed that nanoporous carbons with subnanometre pores can achieve high capacitances due to ion desolvation, and oxide materials can store charge through surface redox reactions. The authors discuss the challenges in characterizing oxide surfaces and the need for advanced simulation techniques to understand complex interfacial processes. They also explore the structural models of nanoporous carbons, the wetting of pores at null potential, and the desolvation of ions in nanopores. The review emphasizes the importance of combining experimental and simulation tools to optimize charge storage mechanisms and design better supercapacitors. The article concludes by discussing the potential for hybrid supercapacitors and the future prospects for improving energy density and performance.