CHAMPAIGN, Ill. — Researchers report that wood-biochar supercapacitors can produce as much power as today's activated-carbon supercapacitors at a fraction of the cost – and with environmentally ...

A capacitor is like a high-speed battery that can quickly store and release energy. What happens when it becomes 'super?' Researchers have potential solutions to improve energy-efficiency. Researchers ...

Supercapacitors—also known as ultracapacitors—store energy similarly to batteries. However, they dispense power extremely quickly instead of over hours. As high-power-density energy storage systems, ...

Improving the capacitance of supercapacitors requires gaining control over ion behavior inside carbon nanopores. This study ...

(Nanowerk News) Guided by machine learning, chemists at the Department of Energy’s Oak Ridge National Laboratory designed a record-setting carbonaceous supercapacitor material that stores four times ...

Consider an electric vehicle that takes only a few seconds to recharge while braking and then using that energy to power up the vehicle until the next stop. Imagine a lightweight smartphone that, ...

The Massachusetts Institute of Technology (MIT) has developed a scalable bulk energy storage solution with inexpensive, abundant precursors – cement, water, and carbon black. Their supercapacitors ...

Unlike batteries, which store and release energy through chemical reactions, supercapacitors store energy electrostatically. This allows them to charge and discharge much faster. A supercapacitor ...

Ultracapacitors store electrical energy through static charge separation in a double-layer of electrodes, instead of chemical reactions like in batteries. This allows them to charge and discharge ...