SUPERCAPACITOR
Introduction of Supercapacitor
１．Introduction
Compared to the commonly used rechargeable batteries, Supercapacitor(Electric Double Layer Capacitor), which is capable to becharged-discharged with high current, is an energy storage device which has excellent charge-discharge cycle life. In the recentyears, with energy issues (reduction of oil consumption, consumer electric power, CO2 emission, and effective use of new energy)
being focused, using Supercapacitor on more and more new applications is considered. Electrification of mobilities and installation ofSupercapacitor in hybrid or fuel-cell vehicle is also considered.
Nippon Chemi-Con has been strongly pursuing products that serve for energy conservation, low environmental impact. Supercapacitor
represents those environmental-friendly products. We have a wide range of products to meet customers' needs, from dozens tothousands of farads.

２．Basic Mechanism of Supercapacitor
Conventional capacitors have a dielectric sandwiched between two electrodes. When voltage is applied, dipoles are oriented, andthus electric charge is stored. Electric double layer capacitors have electric charges oriented at the boundary of electrolyte andelectrodes which is called the "electric double layer."

Conventional Capacitors

Supercapacitors

ElectrodeDielectricElectrolyte

Electrode－＋－ ＋ － ＋－ － ＋ ＋－－ ＋－ ＋＋

Separator

Anode foil

Electrolyte

Cathode foil

ElectricDouble Layer（Figure 1.）Mechanism

Product specifications in this catalog are subject to change without notice.Request our product specifications before purchase and/or use. Please use our products based on the information contained in this catalog and product specifications.

2CAT. No. E1009L 2024

SUPERCAPACITOR
３．CharacteristicsUnlike rechargeable batteries, Supercapacitor does not use chemical reactions and it stores energy solely by physical movement ofion to the surface of activated carbon. That gives Supercapacitor features as follows;
・With low degradation, it withstands multimillion charge-discharge cycles.
・With the high power density, rapid (high current) charge-discharge is possible.
・With a high charge-discharge efficiency, the output efficiency of over 95% with a power density 1kW/kg is achieved.
・Environment-friendly without containing heavy metals.
・High in safety at irregular occasions, and will be not destroyed even by short circuiting.

４．Structure
Nippon Chemi-Con produces Radial Lead type and Screw Terminal type DLCAPTM (Photo 1.).
Basic structure is, as shown in figure 2, aluminum foils with electrode pasted on the surface wound into a roll.
Using activated carbon for the electrode utilizing its very large surface area, and with our original high-density electrode manufacturing
technology, we achieved both high capacitance and low resistance.

TerminalSealing PlateElectrodeAl Case & Sleeve

Radial Lead type(Photo 1.)

Screw Terminal type

Separator(Figure 2.)

DLCAPTM Appearance

DLCAPTMStructure

Product specifications in this catalog are subject to change without notice.Request our product specifications before purchase and/or use. Please use our products based on the information contained in this catalog and product specifications.

3CAT. No. E1009L 2024