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Published May 21, 2021 | Supplemental Material + Published
Journal Article Open

Real-time control of dendritic propagation in rechargeable batteries using adaptive pulse relaxation


The non-uniform growth of microstructures in dendritic form inside the battery during prolonged charge–discharge cycles causes short-circuit as well as capacity fade. We develop a feedback control framework for the real-time minimization of such microstructures. Due to the accelerating nature of the branched evolution, we focus on the early stages of growth, identify the critical ramified peaks, and compute the effective time for the dissipation of ions from the vicinity of those branching fingers. The control parameter is a function of the maximum interface curvature (i.e., minimum radius) where the rate of runaway is the highest. The minimization of the total charging time is performed for generating the most packed microstructures, which correlate closely with those of considerably higher charging periods, consisting of constant and uniform square waves. The developed framework could be utilized as a smart charging protocol for safe and sustainable operation of rechargeable batteries, where the branching of the microstructures could be correlated with the sudden variation in the current/voltage.

Additional Information

© 2021 Author(s). Published under license by AIP Publishing. Submitted: 29 December 2020 . Accepted: 18 April 2021 . Published Online: 19 May 2021. The authors would like to thank and acknowledge the financial support from the University Research Board (URB) at American University of Beirut, Award No. 103950. DATA AVAILABILITY. The raw data required to reproduce these findings are available to download from https://doi.org/10.17632/nzprv4bxrr.1. The processed data required to reproduce these findings are available to download from https://doi.org/10.17632/fbhhy8gb8t.1.

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Published - 194702_1_online.pdf

Supplemental Material - processeddata_31mar21.zip


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October 3, 2023
October 3, 2023