Supercapacitors, also known as ultracapacitors, are high-capacity capacitors that store electrical energy through electrostatic mechanisms, offering significantly greater capacitance than traditional capacitors. They bridge the gap between conventional capacitors and rechargeable batteries, providing rapid charging and discharging, high power density, and the ability to endure hundreds of thousands of charge cycles without significant degradation. Unlike batteries, which produce energy through chemical reactions, supercapacitors store energy in an electric field created between two electrodes immersed in an electrolyte. This design allows them to release energy much faster than batteries and makes them ideal for applications requiring quick bursts of power, such as in regenerative braking systems in vehicles or for power stabilization in electrical grids. Despite their advantages in power management and cycle life, supercapacitors currently have a lower energy density compared to batteries, limiting their use as a sole energy storage solution in many applications.
Researchers have developed a novel method to convert chicken fat into carbon-based electrodes for supercapacitors, offering an eco-friendly alternative to traditional materials. This innovation not…
The energy density of supercapacitors, devices similar to batteries that can recharge rapidly in just seconds or minutes, can be improved by increasing the ‘messiness’…
Sodium (Na), being more than 500 times as abundant as lithium (Li), has recently attracted considerable interest for its potential use in sodium-ion battery technologies….
Supercapacitors, also known as ultracapacitors or electric double-layer capacitors (EDLCs), are advanced energy storage devices with unique characteristics. Unlike traditional batteries, supercapacitors store energy through…
With the rising fascination for wearable technology, there’s been a parallel boost in efforts to develop energy-storage solutions that can be integrated into fabrics. Scientists…
Researchers at University College London have developed one-atom-thick ribbons composed of a phosphorus and arsenic alloy. This breakthrough material holds the potential to significantly enhance…
A novel ultramicro supercapacitor showcases superior energy storage and a potential revolution in device power sources. Researchers at the Department of Instrumentation and Applied Physics…
Constructed from cement, carbon black, and water, the device holds the potential to offer affordable and scalable energy storage for renewable energy sources. Two of…
Researchers have developed a low-cost device that can selectively capture carbon dioxide gas while it charges. Then, when it discharges, the CO2 can be released…
Prof. WANG Zhenyang’s research group from Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has enhanced the energy storage capacity…
Researchers from the University of Surrey’s Advanced Technology Institute (ATI) and the University of São Paulo have developed a new analysis technique that will help scientists…
Some electronics can bend, twist and stretch in wearable displays, biomedical applications, and soft robots. While these devices’ circuits have become increasingly pliable, the batteries…
A sustainable, powerful micro-supercapacitor may be on the horizon, thanks to an international collaboration of researchers from Penn State and the University of Electronic Science…
NASA’s Perseverance Rover recently made a successful landing on Mars, embarking on a two-year mission to seek signs of ancient life and collect samples. Because…
Mechanical engineers from the UCLA Henry Samueli School of Engineering and Applied Science and four other institutions have designed a super-efficient and long-lasting electrode for…
New research from Rice University details the design and testing of three-dimensional supercapacitors made with laser-induced graphene. Rice University scientists advanced their recent development of…
Using a combination of exfoliated graphene and entangled multiwalled carbon nanotubes combined with plastic, paper, and a gelled electrolyte, researchers have developed flexible, solid-state supercapacitors…
New research from engineers at MIT details how two-dimensional carbon “paper” can form stretchable supercapacitors to power flexible electronic devices. When someone crumples a sheet…