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September 30, 2021

Thermal characterization of high-performance battery cells during charging and discharging using optical temperature measurement methods

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Authors

JBJoel Lòpez BonillaBFBenoît FondHGHenrik Graichen

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Overview

Randomized trial demonstrates thermal behavior of battery cells during charge and discharge, highlighting implications for thermal management.

Key Points

  • This study aims to characterize the thermal behavior of lithium-ion battery cells during charging and discharging to improve thermal management strategies.
  • Characterization of high-performance pouch cells under mechanical fixation to stabilize shape during testing.
  • Use of two optical temperature measurement methods: IR-thermography and phosphor thermometry to determine surface temperature distribution.
  • Development of a finite element model (FEM) to simulate and analyze the internal temperature field based on measured surface data.
  • Surface temperature was accurately measured using IR-thermography and phosphor thermometry, revealing distinct temperature distributions under different loading conditions.
  • Each measurement technique showed different advantages in terms of precision and implementation costs, with phosphor thermometry providing broader surface coverage.
  • The integral thermal characterization significantly contributes to optimizing battery thermal management and preventing thermal runaways.

Cite This Study

Bonilla et al. (2021) studied this question.

synapsesocial.com/papers/6a16395a512cb4f7828e9fb5https://doi.org/10.46720/f2021-adm-145
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Towards Understanding and Control of Thermal Processes in Lithium-Ion Batteries2024 · 1 citations
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  4. 4A Study of the Thermal Management and Discharge Strategies of Lithium-Ion Batteries in a Wide Temperature Range2024 · 11 citations
  5. 5Li-Ion Battery Thermal Characterization for Thermal Management Design2024 · 12 citations