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      Extending randles’s battery model to predict impedance, charge-voltage, and runtime characteristics

      Hasan, Rahat; Scott, Jonathan B.
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      ModelingABatteryWithoutAVoltageSourceOpenAccess-HasanScott.pdf
      Accepted version, 2.804Mb
      DOI
       10.1109/access.2020.2992771
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      Hasan, R., & Scott, J. B. (2020). Extending randles’s battery model to predict impedance, charge-voltage, and runtime characteristics. IEEE Access, 1–1. https://doi.org/10.1109/access.2020.2992771
      Permanent Research Commons link: https://hdl.handle.net/10289/13567
      Abstract
      The impedance of a battery can be modelled with an elegant fractional-capacitor or “constant phase element” (CPE) equivalent circuit and a series resistor. In this manuscript, we present new evidence that suggests that a linear model similar to Randles’ comprised solely of this impedance network is able to predict both the charge-voltage relationship epitomised by the familiar hysteresis curve of voltage as a function of charge as a battery charges and discharges through its linear region, and the recovery or “equilibration” transient that results from a step change in load current. The proposed model is unique in that it does not contain a source, either voltage or current, nor any purely reactive elements. There are important potential advantages of a passive battery model.
      Date
      2020
      Type
      Journal Article
      Publisher
      Institute of Electrical and Electronics Engineers (IEEE)
      Rights
      This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
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      • Science and Engineering Papers [2945]
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