The fundamental principle of Lithium Ion Capacitors Hybrid capacitors that combine the advantages of electric double layer capacitors and Lithium Ion rechargeable batteries

Lithium Ion Capacitors are capacitors that combine the qualities of electrical double-layer capacitors and Lithium Ion rechargeable batteries, using the fundamental principles of regular electrical double-layer capacitors, while using carbon materials, capable of adsorption of Lithium Ions, for the negative electrode, and, with the addition of Lithium Ions there, increasing the energy density. Since this is a type of asymmetric capacitor, where the positive and negative electrodes use different principles, using a construction that combines the positive electrode of an electrical double-layer capacitor and the negative electrode of a Lithium Ion rechargeable battery, the positive electrode forms an electrical double-layer and is charged and discharged by a physical process, while the negative electrode is recharged by the oxidation reduction reaction of Lithium. Compared to existing capacitors, the energy density is high, a large reason for this is the fact that the static electricity capacity of the negative electrode is increased by pre-doping.

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High Power Density + High Capacitance

Whitepaper TAIYO YUDEN Lithium Ion Capacitors
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