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State-of-charge ind...
State-of-charge indication in Li-ion batteries by simulated impedance spectroscopy
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- Srivastav, Shruti (författare)
- Uppsala universitet,Strukturkemi
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- Lacey, Matthew J. (författare)
- Uppsala universitet,Strukturkemi
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- Brandell, Daniel (författare)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2016-12-22
- 2017
- Engelska.
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Ingår i: Journal of Applied Electrochemistry. - : Springer Science and Business Media LLC. - 0021-891X .- 1572-8838. ; 47:2, s. 229-236
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Abstract
Ämnesord
Stäng
- We here explore the possibilities of correlating experimental cell impedance with finite element methodology modelling for state-of-charge (SoC) indication in LiFePO-based half-cells. The impedance response has been modelled sequentially during battery cycling using Newman theory, and is compared with experimental data. It is found that the charge-transfer resistance is dependent of SoC during battery charging, which can be modelled in good agreement with experimental results. Moreover, it is seen that cell design parameters-e.g. calendering-dependent electrode porosity-influence the EIS response and can thus be estimated using the presented methodology.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Li-ion battery
- State-of-charge determination
- Impedance spectroscopy
- Finite element methodology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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