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Supercapacitor

A hybrid supercapacitor combines high power and energy density (Photo: UCLA)

Scientists at UCLA's California NanoSystems Institute have developed a new device that combines the high energy densities of batteries and the quick charge and discharge rates of supercapacitors. The hybrid supercapacitor is reportedly six times as energy-dense as a commercially available supercapacitor and packs nearly as much energy per unit volume as a lead-acid battery.  Read More

Natural silk can be processed into a material suitable for use as a lithium-ion battery an...

Next-generation lithium-ion batteries may hold more charge for a greater number of cycles thanks to a new material derived from natural silk. Scientists at the Beijing Institute of Technology found that not only does their regenerated silk fibroin material work for over 10,000 cycles but it also stores five times more lithium than graphite, which is the most common choice for the anode (negative electrode) in lithium-ion batteries.  Read More

A fan of conductive clay? (Photo: Drexel University)

Researchers at Drexel University have hit upon a conductive clay which they claim is an "exceptionally viable candidate" to one day replace the electrode materials used in batteries and supercapacitors. Sure, another day another super material, but MXene, as it's called, does boast some rather intriguing properties.  Read More

QUT sees cars powered by their body panels a reality within five years (Photo: Shutterstoc...

Imagine opening up an electric car and finding no batteries. An absent-minded factory worker or magic? Perhaps neither. If nanotechnology scientists led by the Queensland University of Technology (QUT) are on the right track, it may one day be a reality as cars are powered not by batteries, but their body panels – inside which are sandwiched a new breed of supercapacitors.  Read More

The supercapacitor-powered Hydrogen portable speaker from Blueshift recharges in five minu...

Rechargeable batteries are the Achilles heel of portable electronics, requiring hours to recharge and generally having a life of around 1,000 recharge/discharge cycles before charge capacity starts to fall noticeably. To avoid both these problems, Sam Beck from Portland, Oregon-based Blueshift has created portable Bluetooth speakers that can be charged within five minutes and boast rated lifetimes of 500,000 charges thanks to being powered by supercapacitors.  Read More

Researchers have developed a high-performance electrode material for supercapacitors from ...

Using waste hemp fibers as the starting material, researchers at the University of Alberta in Canada have developed a high-performance electrode material for supercapacitors at one thousandth the cost of the more commonly used graphene. The advance could lead to supercapacitors that are both cheaper and able to operate under harsh environmental conditions.  Read More

Research from the Seoul National University suggests that discarded cigarette butts could ...

Billions of cigarette butts are discarded around the world each year and, even when disposed of properly, pose a threat to the environment by leaching arsenic, lead and other nasty chemicals into land and waterways. New research shows these butts could be set for a new lease on life, with a team of Korean scientists demonstrating that used cigarette filters could actually double as a highly-effective energy storage material.  Read More

From left, supercapacitor developers Mihrimah Ozkan, Cengiz Ozkan and Zachary Favors (Phot...

Researchers at the University of California, Riverside have developed a new graphene-based supercapacitor that uses a nanoscale architecture to double its energy and power performance compared to commercially-available alternatives. This breakthrough is another important step toward making supercapacitors viable for use in fast-charging, high-performance electric cars and personal electronics.  Read More

Researchers have created wires with supercapacitance, which may eventually also double as ...

We literally live in a wired world, with wires snaking hither and yon transmitting electricity and data. Many are visible, while many more are hidden in the walls of buildings, the panels of cars, and the fuselage of aircraft. Now, imagine; what if we were able to turn each and every one of these into a battery that not only transmitted electricity but stored it too? Well, two researchers from the University of Central Florida (UCF) imagined that too, and came up with a way to use nano-technology to make wires with supercapacitance that may eventually also double as batteries.  Read More

Structural supercapacitors could allow energy to be stored directly in structural material...

Imagine using a mobile phone powered entirely by its casing, or an electric car that runs off power stored in its chassis. Researchers at Vanderbilt University have created a structural supercapacitor that could, they believe, bring this closer to reality, making batteries and power cords obsolete. The structural supercapacitor could make it possible to store energy directly in structural materials, allowing them to deliver power long-term while surviving the real-life mechanical stresses they're bound to experience.  Read More

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