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      Measurement for fractional characteristic of lithium batteries

      Hasan, Rahat; Scott, Jonathan B.
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      MeasurementForFractionalCharacteristicOfLithiumBatteries-verified_math_model-HasanScott2019.pdf
      Accepted version, 449.4Kb
      Link
       i2mtc2019.ieee-ims.org
      Citation
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      Hasan, R., & Scott, J. B. (2019). Measurement for fractional characteristic of lithium batteries. Presented at the 2019 IEEE International Instrumentation and Measurement Technology Conference, Conference held Auckland, New Zealand.
      Permanent Research Commons link: https://hdl.handle.net/10289/12841
      Abstract
      It is shown that RC circuits are inappropriate for modelling the transient runtime characteristics of battery voltage. In contrast, impedance-frequency measurements suggest that a fractional capacitor or “constant phase element” (CPE) can represent battery impedance over a wide frequency range. In this paper, we present evidence that shows RC models of rechargeable batteries to be theoretically inappropriate. We then propose a fractional mathematical model which uses 3 parameters to predict charge-voltage characteristics or steady- state Q-V function of a Li-ion cell.
      Date
      2019
      Type
      Conference Contribution
      Rights
      This is the author's accepted version. © 2019 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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