How Does an Ultracapacitor Work? Like a battery, a single ultracapacitor cell consists of a positive and negative electrode separated by an electrolyte. However, they store energy electrostatically, ...

Energy storage company Ioxus designs a hybrid gadget that combines the fast recharge of ultracapacitors with the greater energy storage of lithium-ion batteries. Martin LaMonica is a senior writer ...

Funding from the Energy Storage Engine in Upstate New York will accelerate next-generation power infrastructure ...

In the frenzy over energy storage technologies, ultracapacitors sometimes ends up looking like wallflowers because they traditionally haven't been able to storage as much power as certain battery ...

Scientists have designed an ultracapacitor that maintains a near steady voltage. The novel constant-voltage design may one day help ultracapacitors find new uses in low-voltage electric vehicle ...

Effenco, a Canada-based specialist in electric propulsion systems for heavy-duty vocational vehicles, announced an ultracapacitor-based energy storage system for 100% electric trucks. The company was ...

At Technology Review's EmTech conference last week, MIT professor Joel Schindall told the audience at a panel on energy storage why ultracapacitors may have a significant role to play in our ...

It is is a dream come true for energy seekers: a portable energy source that outperforms the best lithium-ion batteries on the market and produces 10 times the power of lead-acid batteries at half the ...

An MIT spinoff just getting off the ground received a huge helping hand from the U.S. Department of Energy on Monday. FastCAP Systems, of Cambridge, MA, received a two-and-a-half-year, $5.35 million ...

A company called Nawa has unveiled an electric motorcycle with a racy hubless rear wheel and a lot more range than most other e-bikes. However, the one-off "Racer" prototype is actually designed to ...

Chemical batteries power many different mobile electronic devices, but repeated charging and discharging cycles can wear them out. An alternative energy storage device called an ultracapacitor can be ...