DLCAP Datasheet, PDF (1/2 Pages) United Chemi-Con, Inc. – Nippon Chemi-Con to Increase Production of Low- Resistance Electric Double Layer Capacitors DLCAP™ for Passenger Vehicles

Press Release
Nippon Chemi-Con Corporation
September 6, 2013
Nippon Chemi-Con to Increase Production of
Low- Resistance Electric Double Layer Capacitors
DLCAP™ for Passenger Vehicles
Nippon Chemi-Con Corporation will increase
production of low-resistance electric double layer
capacitors (EDLC), DLCAP™, developed for use in
vehicles such as capturing kinetic energy and storing as
electricity in regenerative braking energy systems.
First adopted by Mazda Motor Corporation
(Mazda) last year, low-resistance EDLC has been
adopted by another automaker this summer. Nippon
Chemi-Con expects sales of “DLCAP™” for this fiscal
year to be 4 billion yen, about a tenfold increase
compared to two years ago when the supply to automakers
was yet to start.
EDLC for use in vehicles
“DXE series”
The EDLC for use in vehicles, developed with Nippon Chemi-Con’s unique
technology, features significantly reduced internal resistance. To lower internal resistance,
methyl cyanide (acetonitrile) is commonly used as a solvent for electrolyte; however,
acetonitrile is highly toxic and is designated as a poisonous substance under Japanese law. As
environmental regulations are expected to be further strengthened in most countries, Nippon
Chemi-Con uses the very safe “propylene carbonate”, not acetonitrile, with the view of
long-term use of EDLC. Through extensive structural design research, Nippon Chemi-Con
developed the EDLC, using the very safe propylene carbonate, which features less than half
of the internal resistance compared to the previous series.
Our newest product (EDLC) also has a broader operating temperature range, from
-40 to +70 degrees Celsius (from -25 to +60 degrees Celsius for the previous series), allowing
them to be ideally suited for use in automotive applications. Superior heat resistance allows
them to be placed within the engine compartment and improved low-temperature properties
allow them to deliver high performance in cold climates.
After being adopted by Mazda, Nippon Chemi-Con has extended the product line of
low-resistance EDLC for automotive use. The product line has become a standard series
which we named “DXE” and started being supplied to a new-model vehicle launched by
another automaker this September. This new-model vehicle features idling stop system which
improves fuel economy and a regenerative braking energy system in which EDLC has been
adopted to store electricity. When the vehicle decelerates, electricity generated by the