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Supercapacitor

The supercapacitor-powered Helium Bluetooth speakers from Blueshift

Sharing music with friends through laptop or smartphone speakers can be less than satisfying, which perhaps goes some way to explaining the overwhelming choice of portable Bluetooth speakers that come into view as you enter a consumer electronics store. Such offerings all suffer the same problem, though. Just as you're getting your groove on, the built-in battery dies and you have to wait hours while it juices up from a wall socket. What mobile music lovers like me need are wireless speakers that can charge in minutes, and then last for hours. An impossible dream? Sam Beck from Portland's Blueshift doesn't think so. He's developed mono and stereo portable Bluetooth speakers powered by supercapacitors. Helium users can look forward to a super quick charge time, hours of full volume playback and years of recharge cycles before needing to consider a supercap refresh.  Read More

A newly developed silicon supercapacitor could allow for the seamless integration of energ...

A team of researchers at the Vanderbilt University in Nashville, Tennessee has designed a supercapacitor made primarily of silicon that has shown much improved power density over its commercially available alternatives. The advance could allow for interesting integration of battery technology in everyday electronics, from solar cells to smartphones.  Read More

Monash University researchers have created a compact electrode that uses a liquid electrol...

Graphene-based supercapacitors have already proven the equal of conventional supercapacitors – in the lab. But now researchers at Melbourne’s Monash University claim to have developed of a new scalable and cost-effective technique to engineer graphene-based supercapacitors that brings them a step closer to commercial development.  Read More

The Toyota hybrid TS030 team pushed the Audi Sport Team Joest teams off the top step of th...

The battle of the hybrid racing cars in World Endurance Racing took an interesting turn this weekend when Toyota's TS030 Hybrid won the fifth round of the FIA World Endurance Championship in Sao Paulo, Brazil. The TS030 Hybrid uses a THS-R (Toyota Hybrid System - Racing) comprising a gasoline-burning 3.4 liter V8 engine and a 500 kJ Nisshinbo supercapacitor energy recovery unit which supplies power to the rear wheels. The Audi uses a turbocharged 3.7 liter V6 diesel engine with a 500 kJ electric flywheel accumulator to store recovered energy and feed it to the front wheels to create four-wheel-drive. It seems Audi has a worthy adversary in Toyota and the remainder of the season will be worth watching.  Read More

Drexel University research combining the best features of batteries and supercapacitors co...

Researchers at Drexel University are developing an electrochemical flow capacitor (EFC) that combines the storage capabilities of batteries with the much longer cycle life and power output of supercapacitors. The team's goal is to improve the stability of the energy grid and ease the integration of renewable energy sources.  Read More

The TMG EV P002

Toyota Motorsport is hoping for a spectacular few months in the middle of 2012, most notably with the race debut for the TS030 HYBRID in the Le Mans 24 hour and now for an EV assault on Pikes Peak. Not content with challenging the all-conquering Audi Team Joest with its hybrid 3400 cc V8 and supercapacitor energy storage system, the company has unveiled a new development of its TMG EV P001 car (which set a very respectable EV lap record at the Nürburgring Nordschleife in 2011) dubbed the P002 with which it will compete in the Pikes Peak International Hill Climb in Colorado on July 8.  Read More

Schematic showing the structure of laser scribed graphene supercapacitors created by UCLA ...

The wonders of graphene seem to know no bounds. Not only is it one of the strongest materials known, is both highly conductive and piezoelectric, it can generate electricity from flowing water and now it is being used to make better supercapacitors. Using a DVD writer, a team of UCLA researchers has invented a new process for making high quality graphene electrodes and used these electrodes to make a new species of supercapacitor. Though the work is in the early stages of development, it could lay a foundation for supercapacitor-based energy storage systems suitable for flexible portable electronic devices.  Read More

A method developed at Rice University allows bundles of vertically aligned single-wall car...

Capacitors are able to charge and discharge more quickly than batteries, and can do so hundreds of thousands of times. Batteries, on the other hand, are able to store more energy than capacitors. There are also electric double-layer capacitors (EDLCs), otherwise known as supercapacitors, that can hold battery-like amounts of energy while retaining the charge/discharge speed of regular capacitors. EDLCs incorporate liquid or gel-like electrolytes, however, which can break down under hot or cold conditions. Now, a new solid-state supercapacitor developed at Houston’s Rice University is using nanotechnology to get around that limitation.  Read More

High surface area of graphene make supercapcitors possible

A breakthrough in supercapacitor performance has been achieved with the development of a device that can store as much energy as a battery while recharging in seconds. The graphene-based supercapacitor being developed in the U.S. by researchers at Nanotek Instruments can store as much energy per unit mass as nickel metal hydride batteries and could one day be used to help deliver almost instant charging to recharge mobile phones, digital cameras or micro electric vehicles.  Read More

Lightweight capacitors are being developed to meet the high energy demands of hybrids and ...

Research into capacitors for use in hybrid vehicles, EVs, computer power supplies and pacemakers has been given a boost in the order of US$2.25 million. Professor Gerhard Welsch, who began patenting his designs for capacitors a decade ago, will use the grant to complete development of a small, light, powerful and reliable capacitor that promises a 10-fold or higher increase in energy density over current models.  Read More

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