LIC Hybrid Caps vs EDLCs

Ultracap-Knowledge | Rainer Hake | reading time: 1 minute

Battery capacitors: The lithium ion capacitor LIC

Battery capacitors are supercapacitors, but technically fall into the category of lithium ion capacitors or LIC for (Lithium Ion Capacitor). This techno­logy comple­ments and expands the range of applications of SUPERCAPs. The hybrid capacitor, made with Li4Ti5O12 = lithium titanate oxide as the anode material, has a higher energy density than an electrical double layer capacitor (EDLC).

The hybrid capacitor is a capacitor that uses different materials with different operating potentials as cathode (activated carbon) and anode (e.g. Li4Ti5O12), which can increase the total cell potential, resulting in higher energy and power densities.

EDLC or double layer capacitors have activated carbon as base material and ACN = acetone nitrile as electro­lyte. The diagrams clearly show the essential differences.

Better performance with EDLCs - Higher energy density with LIC hybrids

EDLC have the significantly better perfor­mance data, hybrid capacitors have a signi­ficantly higher energy density. At the same time, however, due to the lithium base, they are not as cycle-resistant as the EDLC. However, this does not play such an important role in all applications. Both techno­logies complement each other, depen­ding on the application. The decision for or against a technology is decided by the application.

EDLC vs Hybrids: Charge Comparism


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Why are components like ultracaps called different names?

The variety of terms is explained by the English-language terms commonly used in the electronics industry, which are often mixed with German terms or used synonymously. In some cases, manufacturers have also introduced artificial terms to better distinguish themselves from competitors. Here are the most important examples:

Double layer capacitors (DSK) are referred to synonymously as:

  • EDLC (Electric Double Layer Capacitor)
  • Supercapacitors = Supercaps
  • Ultracapacitors = Ultracaps
  • Goldcap™ [Panasonic]
  • Boostcap™  [Maxwell]
  • Greencap™  [Samwha]
  • PURIXEL™  [Pureechem] for supercap cells
  • PURETRON™  [Pureechem] for supercap modules

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