Adaptive configuration of generalized nonlinear ECM of Li-ion batteries based on impedance measurements and DRT analysis

Sihvo, Jussi; Knap, Vaclav; Roinila, Tomi; Stroe, Daniel-Ioan (2023)
 
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Sihvo, Jussi
Knap, Vaclav
Roinila, Tomi
Stroe, Daniel-Ioan
2023

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doi:10.23919/EPE23ECCEEurope58414.2023.10264524
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https://urn.fi/URN:NBN:fi:tuni-202310108732

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Peer reviewed
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An adaptive approach for configuration of generalized battery nonlinear equivalent-circuit-model (ECM) is proposed. In the approach, the distribution-relaxation-times (DRT) analysis is used to configure and initialize the ECM to be fitted to the impedance data. The performance of the approach is validated and analyzed by using experimental battery impedance measurements.
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