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  • Li, Yang,1984Chalmers tekniska högskola,Chalmers University of Technology (author)

Control-Oriented Modeling of All-Solid-State Batteries Using Physics-Based Equivalent Circuits

  • Article/chapterEnglish2022

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  • 2022
  • electronicrdacarrier

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  • LIBRIS-ID:oai:research.chalmers.se:5b977efa-9d76-4735-9266-6577e0e7e8fb
  • https://research.chalmers.se/publication/527218URI
  • https://doi.org/10.1109/TTE.2021.3131147DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

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  • Considered as one of the ultimate energy storage technologies for electrified transportation, the emerging all-solid-state batteries (ASSBs) have attracted immense attention due to their superior thermal stability, increased power and energy densities, and prolonged cycle life. To achieve the expected high performance, practical applications of ASSBs require accurate and computationally efficient models for the design and implementation of many onboard management algorithms, so that the ASSB safety, health, and cycling performance can be optimized under a wide range of operating conditions. A control-oriented modeling framework is thus established in this work by systematically simplifying a rigorous partial differential equation (PDE) based model of the ASSBs developed from underlying electrochemical principles. Specifically, partial fraction expansion and moment matching are used to obtain ordinary differential equation based reduced-order models (ROMs). By expressing the models in a canonical circuit form, excellent properties for control design such as structural simplicity and full observability are revealed. Compared to the original PDE model, the developed ROMs have demonstrated high fidelity at significantly improved computational efficiency. Extensive comparisons have also been conducted to verify its superiority to the prevailing models due to the consideration of concentration-dependent diffusion and migration. Such ROMs can thus be used for advanced control design in future intelligent management systems of ASSBs.

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  • Wik, Torsten,1968Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tw (author)
  • Xie, ChangjunWuhan University of Technology (author)
  • Huang, Yicun,1992Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)yicun (author)
  • Xiong, BinyuWuhan University of Technology (author)
  • Tang, JinruiWuhan University of Technology (author)
  • Zou, Changfu,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)changfu (author)
  • Chalmers tekniska högskolaWuhan University of Technology (creator_code:org_t)

Related titles

  • In:IEEE Transactions on Transportation Electrification8:2, s. 2080-20922332-7782

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