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

Li, Yang, 1984 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Wik, Torsten, 1968 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Xie, Changjun (author)
Wuhan University of Technology
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Huang, Yicun, 1992 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Xiong, Binyu (author)
Wuhan University of Technology
Tang, Jinrui (author)
Wuhan University of Technology
Zou, Changfu, 1987 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
2022
2022
English.
In: IEEE Transactions on Transportation Electrification. - 2332-7782. ; 8:2, s. 2080-2092
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  • Journal article (peer-reviewed)
Abstract Subject headings
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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.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Annan teknik -- Övrig annan teknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
NATURVETENSKAP  -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
NATURAL SCIENCES  -- Mathematics -- Probability Theory and Statistics (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

All-solid-state battery
battery modeling
electrochemical model
model order reduction
moment matching

Publication and Content Type

art (subject category)
ref (subject category)

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