What question did this study set out to answer?

To develop and validate a computationally efficient layered electro-thermal equivalent circuit model that accurately estimates the internal temperature distribution of lithium-ion cells in real time.

November 18, 2024BatteriesOpen Access

Internal Temperature Estimation for Lithium-Ion Cells Based on a Layered Electro-Thermal Equivalent Circuit Model

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To develop and validate a computationally efficient layered electro-thermal equivalent circuit model that accurately estimates the internal temperature distribution of lithium-ion cells in real time.
Integrated a layered second-order fractional equivalent circuit model with a layered thermal equivalent circuit model across a three-layer lithium-ion cell representation.
Simulated a high-load condition consisting of a 10C direct current discharge for 60 s followed by a 240 s rest period.
Validated performance against a 3D Newman Finite Element Model constructed with empirical battery parameters.
Predicted a maximum core-to-surface temperature difference of 3.58 °C at the conclusion of 10C discharge, compared to 3.74 °C predicted by the finite element model.
Demonstrated high consistency in dynamic temperature profiles across all layers and the battery surface between both modeling approaches.

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Implication

Computational study demonstrates accurate internal temperature estimation in lithium-ion cells using a layered electro-thermal model, suggesting suitability for real-time battery management.

Cite This Study

Shi et al. (2024) studied this question.

synapsesocial.com/papers/6a79ab74a51ded8e7b324f5e https://doi.org/10.3390/batteries10110406

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Implication

Computational study demonstrates accurate internal temperature estimation in lithium-ion cells using a layered electro-thermal model, suggesting suitability for real-time battery management.

Internal Temperature Estimation for Lithium-Ion Cells Based on a Layered Electro-Thermal Equivalent Circuit Model

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Discussion

Implication

Cite This Study

Internal Temperature Estimation for Lithium-Ion Cells Based on a Layered Electro-Thermal Equivalent Circuit Model

Key Points

Discussion

Implication

Cite This Study

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