Li-ion batteries play a vital role in stabilizing the electrical grid. In this work, two different Li-ion battery chemistries based on LiNi0.8Co0.15Al0.05O2 (NCA) and LiFePO4 (LFP) cathodes have been tested under the grid duty cycles recently developed for frequency regulation (FR) and peak shaving (PS) with and without being subjected to electric vehicle (EV) drive cycles. The lifecycle comparison derived from capacity, round trip efficiency (RTE), resistance, charge/discharge energy and total utilized energy of the two battery chemistries have been discussed. The results can be used as a guideline for selection, deployment, operation and cost analyses of Li-ion batteries used for different applications.
Revised: June 19, 2018 |
Published: March 15, 2018
Citation
Crawford A.J., Q. Huang, M. Kintner-Meyer, J. Zhang, D.M. Reed, V.L. Sprenkle, and V.V. Viswanathan, et al. 2018.Lifecycle Comparison of Selected Li-ion Battery Chemistries under Grid and Electric Vehicle Duty Cycle Combinations.Journal of Power Sources 380.PNNL-SA-128874.doi:10.1016/j.jpowsour.2018.01.080