Ultracapacitors for 42V automotive systems

Advanced Battery Technology,  Dec 2002  

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NESSCAP of South Korea recently introduced its 2.7V ultracapacitors as a solution for future 42V automotive power systems.

In recent simulation tests, the ultracapacitors composed of 2.7V-3500F cells demonstrated ample available energy and acceleration. The module showed enough available energy for 42V systems that have 6kW of output power, and acceleration and regenerating time of 20 seconds, respectively. During the cycling, cell voltage deviations in the module are suitable to use as energy storage for the system: In addition, the ultracapacitors showed that significant fuel savings can be achieved when they are used for energy storage instead of batteries due to high charging/ discharging efficiency. Tests showed that fuel savings when regenerating and power boosting are approximately 30% higher than those of other batteries-in city driving.

In a technical paper that company officials delivered at the 19th International Electric Vehicle Symposium in November in Buson, Korea, NESSCAP detailed how its ultracapacitors are a better solution than lithium, nickelmetal hydride and sealed lead acid batteries because of their power and energy density at high rate, thermal stability and cycle life.

Visit nesscap.com.

Copyright Seven Mountains Scientific, Inc. Dec 2002
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