Lithium Ion Capacitor Discharge Current

Does lithium-ion capacitor self-discharge?

Self-discharge (SD) behavior has become a critical hindrance to the charge storage on lithium-ion capacitors (LICs) and needs urgent research. A three-electrode LIC pouch cell has been fabricated with activated carbon (AC) as cathode, hard carbon (HC) as anode, and lithium (Li) foil as the third electrode to investigate and analyze the SD behavior.

What is a lithium ion capacitor?

Lithium-ion capacitors (LICs) are asymmetric electrochemical supercapacitors combining the advantages of high power density and long cycle life of electrical double-layer capacitor (EDLC), and high energy density of lithium-ion battery. A three-electrode LIC cell has been assembled employing activated carbon (AC) cathode and soft carbon anode.

Are lithium-ion capacitors asymmetric electrochemical supercapacitors?

To read the full-text of this research, you can request a copy directly from the authors. Lithium-ion capacitors (LICs) are asymmetric electrochemical supercapacitors combining the advantages of high power density and long cycle life of electrical double-layer capacitor (EDLC), and high energy density of lithium-ion battery.

Are lithium-ion capacitors a promising energy storage device?

Lithium-ion capacitors (LICs) [1, 2, 3, 4, 5] have become a kind of promising energy storage device in recent years, filling in the gaps between the high-power-density device of electrical double-layer capacitors (EDLCs) [6, 7, 8] and the high-energy–density device of lithium-ion batteries (LIBs) [9, 10, 11, 12].

What is a good rated voltage for a lithium ion battery?

Rated voltage of 3.8–4.0 V is suitable. Self-discharge and leakage current of LIC are much superior than EDLC. Lithium-ion capacitors (LICs) are asymmetric electrochemical supercapacitors combining the advantages of high power density and long cycle life of electrical double-layer capacitor (EDLC), and high energy density of lithium-ion battery.

What is the power density of a LIC capacitor?

The energy density of LIC is 3–5 times higher than that of double-layer capacitor, and the power density can reach up to 30 kW kg −1 [15, 26, 27]. Up to now, the self-discharge behavior and leakage current of EDLCs and pseudocapacitors have been extensively investigated [, , , ].