Sensitivity Analysis of Battery Cell Aging Estimators based on Impedance Spectroscopy regarding Temperature Compensation

Liebhart, Bernhard; Diehl, Simon; Endisch, Christian

doi:10.1109/ccta41146.2020.9206395

Cited by 4 publications

(2 citation statements)

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“…As shown in Table 3, the most common approach is to use arg(Z), which is assumed to enable measurements that depend only slightly on SOC, State of Health (SOH) [140,141], and cell capacity [137]. Additionally, |Z| can be subject to higher production fluctuations [142], which reduces the reference models' generalization abilities. Beelen et al [138,139,143] combine both (Z) and (Z), whereby the scaling between both features is optimized by Monte Carlo simulations.…”

Section: Online Identification Of Core Temperaturementioning

confidence: 99%

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Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

et al. 2021

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This review provides an overview of new strategies to address the current challenges of automotive battery systems: Intelligent Battery Systems. They have the potential to make battery systems more performant and future-proof for coming generations of electric vehicles. The essential features of Intelligent Battery Systems are the accurate and robust determination of cell individual states and the ability to control the current of each cell by reconfiguration. They enable high-level functions like fault diagnostics, multi-objective balancing strategies, multilevel inverters, and hybrid energy storage systems. State of the art and recent advances in these topics are compiled and critically discussed in this article. A comprising, critical discussion of the implementation aspects of Intelligent Battery Systems complements the review. We touch on sensing, battery topologies and management, switching elements, communication architecture, and impact on the single-cell. This review contributes to transferring the best technologies from research to product development.

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Section: Online Identification Of Core Temperaturementioning

confidence: 99%

“…Of special interest is SOH identification based on EIS as it facilitates a quick determination procedure, especially when considering just one frequency that is sensitive to degradations [142,230,231]. These methods are promised to be applicable on-board in an IBS.…”

Section: Online Identification Of State Of Healthmentioning

confidence: 99%