Effect of aging on C/LFP battery impedance: Operating conditions to which the impedance has minimal variations

Yoana Fernández Pulido,C. Blanco,D. Anseán,M. Gonzalez,J.C. Viera,Víctor Manuel Álvarez García

2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)（2017）

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摘要

This work uses the electrochemical impedance spectroscopy to study how the battery impedance changes with aging. Tests performed with a fresh cell and another one aged at different states of charge and temperature were compared. The obtained results can be useful to determine the best possible use for a second life of the battery.

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关键词

Lithium iron phosphate (LFP) batteries,Electrochemical Impedance Spectroscopy (EIS),State of Charge (SOC) effect,Aging

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