[lifesaviors] FYI -- Supercapacitors 2 of 3

From: "Lion Kuntz" <lionkuntz@xxxxxxxxx>
To: lifesaviors@xxxxxxxxxxxxx
Date: Sat, 28 Jun 2003 12:56:03 -0800
http://www.electronicstalk.com/news/nes/nes101.html

Capacitor provides flexible 42V automotive storage
Nesscap reckons its recently introduced 2.7V ultracapacitors are an ideal 
solution for future 42V automotive power systems.
Nesscap reckons its recently introduced 2.7V ultracapacitors are an ideal 
solution for future 42V automotive power systems.
Auto manufacturers are moving to the higher power system to support growing 
electrical demands for increasing fuel economy and reducing emissions as well 
as for powering interior comfort accessories.
A 42V power architecture can enable hybrid power train capabilities such as 
"idle stop", in which a vehicle's engine would shut down at traffic lights, 
saving gas and reducing pollutants.
In a technical paper that company officials will deliver to the 19th 
International Electric Vehicle Symposium (EVS-19) next month in Buson, Korea, 
Nesscap will detail how its ultracapacitors are a better solution compared with 
lithium, nickel-metal hydride and sealed lead-acid batteries because of their 
power and energy density at high rate, thermal stability and cycle life.
Energy storage devices for 42V systems must deliver high power for a specified 
time, accept and hold a charge and meet specified requirements for operating 
temperature range, durability and safety.
"Our new ultracapacitors have proved to be a significant storage device for 42V 
systems.
The NESSCAP ultracapacitors have approximately 10 times the power density of a 
same sized battery and the capability of being charged and discharged over 100 
times faster than a battery", stated Dr Young Ho Kim, Vice President of 
Engineering.
The Nesscap 2.7V ultracapacitors exceed others in the market today due to their 
ability to supply large amounts of instantaneous peak power when demanded.
This is particularly advantageous in automotive and industrial applications.
In recent simulation tests, the Nesscap 42V 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 20s, respectively.
During the cycling, cell voltage deviations in the module are suitable to use 
as energy storage for the 42V system.
In addition, the ultracapacitors showed that significant fuel savings can be 
achieved when using ultracapacitors for energy storage instead of batteries due 
to high charging/discharging efficiency.
Tests showed that fuel savings achieved when regenerating and power boosting is 
at approximately 30% higher than those of other batteries in city driving.
"The ultracapacitor eliminates many technical headaches associated with 
traditional batteries.
Lead-acid batteries, which are used today, have ongoing maintenance 
requirements, shorter life spans and are unable to handle wide variations in 
temperature", further noted Dr Kim.
As auto manufacturers move closer to employing 42V systems, various new 
technologies will come into play.
Nesscap is leading the field in designing the next generation of 
ultracapacitors that offer higher capacity and lower cost.



-- 
__________________________________________________________
Sign-up for your own FREE Personalized E-mail at Mail.com
http://www.mail.com/?sr=signup
[lifesaviors] FYI -- Supercapacitors 2 of 3

Other related posts:
