Development and characterization of Li-ion capacitor pouch cells

By Cao, W.J.; Shih, J.; Zheng, J.P. & Doung, T.
Published in Journal of Power Sources NULL 2014

Abstract

High energy density Li-ion capacitor (LIC) pouch cell prototypes were assembled with lab-scale equipment using activated carbon cathode and hard carbon/lithium stabilized metal power (SLMP) anode. The specific energy and energy density as high as 30 Wh kg-1 and 39 Wh L-1 have been achieved, respectively. The pouch cells can deliver over 50% of the maximum stored energy at a discharge rate over 100 C-rate. After 10,000 cycles, the LIC pouch cell still has 80% of the initial capacitance. The average leakage current is 0.3 μA cm-2 during the first 72 h.

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