Miniaturized energy storage devices, such as electrostatic nanocapacitors and electrochemical micro-supercapacitors (MSCs), are important components in on-chip energy supply systems, facilitating the development of autonomous microelectronic devices with enhanced performance and. Miniaturized energy storage devices, such as electrostatic nanocapacitors and electrochemical micro-supercapacitors (MSCs), are important components in on-chip energy supply systems, facilitating the development of autonomous microelectronic devices with enhanced performance and. Fitness trackers, internet-connected thermostats and other smart devices offer many benefits, but their growing popularity is driving up energy consumption, along with the need for more efficient energy storage solutions in small sizes. Now, researchers have engineered a new generation of. In the ever-evolving landscape of electronics, the demand for smaller, more powerful devices has spurred a quiet yet transformative revolution in energy storage. Arranging bigger things in the nanoscale can unlock unique characteristics and enhance the features.