Journal
JOURNAL OF ENERGY STORAGE
Volume 21, Issue -, Pages 581-585Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.est.2018.12.020
Keywords
Lead-acid batteries; Impedance; Z-modulus; Phase angle; State of charge
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Funding
- Centre for Research and Utilization of Renewable Energy (CVVOZE)
- Ministry of Education, Youth and Sports of the Czech Republic under NPU I programme [LO1210]
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The paper explores state of charge (SoC) determination of lead-acid battery cell by electrochemical impedance spectroscopy (EIS) method. Lead-acid cell was explored during intermittent discharge and intermittent charge. Nyquist diagram, open circuit voltage, Z-modulus and the phase angle of the cell for frequencies 853 Hz, 5.37 Hz and 351 mHz were used for the state of charge determination.
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