Maxwell Technologies: Ultracapacitors

http://www.maxwell.com/ultracapacitors/index.html

As compared to batteries, ultracapacitors deliver up to 10 times the power, last up to 10 times as long, operate more reliably in high- and low-temperature conditions, require far less maintenance and reduce environmental issues associated with battery disposal.

Extremely high electrical energy storage capacity and the ability to deliver bursts of high power and recharge rapidly from any energy source over hundreds of thousands of cycles make ultracapacitors an ideal solution for a wide variety of applications.

Postage stamp-size small cell ultracapacitors extend battery life and enhance the performance and functionality of hand-held electronic devices, remote transmitting devices and toys.

Large cells are also available and can be linked together to form power packs of up to 500 cells to power initial acceleration, operate electrical subsystems and recapture energy from braking for cleaner, more fuel-efficient hybrid electric/internal combustion buses, trucks and automobiles. Maxwell offers several integrated module and pack solutions that are available with active or passive voltage balancing.

Ultracapacitors offer also highly reliable solutions for bridge power applications requiring “zero downtime” power reliability.

Ultracapacitor’s key characteristics:

• High reliability and cycle life 100,000 cycles plus
• Rapid recharge capability within minutes
• High power density
• Wider temperature range versus batteries
• No maintenance