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Energies 2018, 11(8), 2162; https://doi.org/10.3390/en11082162

The Impact of Pulse Charging Parameters on the Life Cycle of Lithium-Ion Polymer Batteries

1
Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77840, USA
2
EnMed Working Group and Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77840, USA
*
Author to whom correspondence should be addressed.
Received: 2 August 2018 / Revised: 14 August 2018 / Accepted: 15 August 2018 / Published: 18 August 2018
(This article belongs to the Section Energy Storage and Application)
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Abstract

The pulse charging algorithm is seen as a promising battery charging technique to satisfy the needs of electronic device consumers to have fast charging and increased battery charge and energy efficiencies. However, to get the benefits of pulse charging, the pulse charge current parameters have to be chosen carefully to ensure optimal battery performance and also extend the life cycle of the battery. The impact of pulse charge current factors on the life cycle and battery characteristics are seldom investigated. This paper seeks to evaluate the impact of pulse charge current factors, such as frequency and duty cycle, on the life cycle and impedance parameters of lithium-ion polymer batteries (LiPo) while using a design of experiments approach, Taguchi orthogonal arrays. The results are compared with the benchmark constant current-constant voltage (CC-CV) charging algorithm and it is observed that by using a pulse charger at optimal parameters, the cycle life of a LiPo battery can be increased by as much as 100 cycles. It is also determined that the duty cycle of the pulse charge current has the most impact on the cycle life of the battery. The battery impedance characteristics were also examined by using non-destructive techniques, such as electrochemical impedance spectroscopy, and it was determined that the ambient temperature at which the battery was charged had the most effect on the battery impedance parameters. View Full-Text
Keywords: Li-ion polymer battery; pulse charging; constant current constant voltage; electrochemical impedance spectroscopy; battery impedance; life cycle; Taguchi orthogonal arrays; design of experiments Li-ion polymer battery; pulse charging; constant current constant voltage; electrochemical impedance spectroscopy; battery impedance; life cycle; Taguchi orthogonal arrays; design of experiments
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Amanor-Boadu, J.M.; Guiseppi-Elie, A.; Sánchez-Sinencio, E. The Impact of Pulse Charging Parameters on the Life Cycle of Lithium-Ion Polymer Batteries. Energies 2018, 11, 2162.

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