Capacitive vs Faradaic Energy Storage in a Hybrid Cell with LiFePO4/RGO Positive Electrode and Nanocarbon Negative Electrode
Date
2016-11-22
Authors
Cab´an-Huertas, Zahilia
Dubal, Deepak P.
Ayyad, Omar
G´omez-Romero, Pedro
Journal Title
Journal ISSN
Volume Title
Publisher
ECS
Abstract
We report an advanced device based on a Nitrogen-doped Carbon Nanopipes (N-CNP) negative electrode and a lithium iron phosphate(LiFePO4) positive electrode. We carefully balanced the cell composition (charge balance) and suppressed the initial irreversiblecapacity of the anode in the round of few cycles. We demonstrated an optimal performance in terms of specific capacity 170 mAh/g ofLiFePO4with energy density of about 203 Wh kg−1and a stable operation for over 100 charge−discharge cycles. The components ofthis device (combining capacitive and faradaic electrodes) are low cost and easily scalable. This device has a performance comparableto those offered by the present technology of LIBs with the potential for faster charging; hence, we believe that the results disclosedin this work may open up new opportunities for energy storage devices.
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Citation
TY - JOUR AU - Caban Huertas, Zahilia AU - Dubal, Deepak AU - Ayyad, Omar AU - Gómez-Romero, Pedro PY - 2017/01/01 SP - 6140 EP - 6146 T1 - Capacitive vs Faradaic Energy Storage in a Hybrid Cell with LiFePO 4 /RGO Positive Electrode and Nanocarbon Negative Electrode VL - 164 DO - 10.1149/2.0211701jes JO - Journal of The Electrochemical Society ER -