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Comparison of techn...
Comparison of techniques based on frequency response analysis for state of health estimation in lithium-ion batteries
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- Wang, Shaojin (författare)
- Wuhan University of Technology
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- Tang, Jinrui (författare)
- Wuhan University of Technology
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- Xiong, Binyu (författare)
- Wuhan University of Technology
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- Fan, Junqiu (författare)
- Guizhou University
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- Li, Yang, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Chen, Qihong (författare)
- Wuhan University of Technology
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- Xie, Changjun (författare)
- Wuhan University of Technology
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- Wei, Zhongbao (författare)
- Beijing Institute of Technology
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: Energy. - 0360-5442 .- 1873-6785. ; 304
- Relaterad länk:
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Frequency response analysis (FRA) methods are commonly used in the field of State of Health (SOH) estimation for Lithium-ion batteries (Libs). However, identifying their appropriate application scenarios can be challenging. This paper presents four FRA techniques, including electrochemical impedance spectra (EIS), mid-frequency and low-frequency domain equivalent circuit model (MLECM), distribution of relaxation time (DRT) and non-linear FRA (NFRA) technique. This paper proposes two estimation frameworks, machine learning and curve fitting, to be applied to each of the four techniques. Eight SOH estimation models are developed by linking the extracted feature parameters to the battery capacity variations. The paper compares the accuracy of estimation, estimation range, and other properties of the eight models. Application scenarios are identified for the techniques by using three classification methods: different estimation frameworks, frequency response linearity, and impedance technique. The results demonstrate that MLF is recommended for scenarios with a large amount of battery data, while CFF is recommended for scenarios with a small amount of data. NFRA could be applied to electric vehicle power batteries, while LFRA is recommended to be used for retired batteries. EIS method is recommended for complex and dynamic scenarios, while non-EIS method is recommended for scenarios that require high accuracy.
Ämnesord
- 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 -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Frequency response analysis
- State of health estimation
- Electrochemical impedance spectroscopy
- Equivalent circuit model
- Distribution of relaxation times
Publikations- och innehållstyp
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- ref (ämneskategori)
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