Measurement of Temperature Gradient (dT/dy) and Temperature Response (dT/dt) of a Prismatic Lithium-Ion Pouch Cell with LiFePO<sub>4</sub> Cathode Material

Panchal, Satyam; Mathewson, Scott; Fraser, Roydon; Culham, Richard; Fowler, Michael

doi:10.4271/2017-01-1207

Cited by 27 publications

(11 citation statements)

References 14 publications

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“…Many of the studies performed infer certain crucial points and two such major concepts demonstrated were: first, Hong et al 17 states that temperature rise and difference were independent of the inlet air temperature; second, a cell designed by Gou et al 18 shows a significant increase in thermal performance concerning air cooling measure. Undoubtedly, inlet and outlet parameters such as air inlet area, air outlet area, and air inlet velocity affect the cooling performance and this concept was also supported by the study made by Chen et al 19 Panchal et al 20 talks about the importance of precise thermophysical property input, which is possible only after proper thermal study of the battery, for an accurate thermal modeling. Al-Zareer et al 21 states that increment in the spacing between the cells results in reduction of maximum temperature difference (MT).…”

Section: Introductionmentioning

confidence: 87%

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

et al. 2020

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Lithium-ion cells are preferred in the electrical powertrain due to high-power density, compactness, and modularity. In real driving conditions, the cells undergo discharge rates as high as 4 C resulting in high heat generation affecting the performance. To obtain the maximum performance the pack construction and thermal management of cells are crucial parameters. In our work, air-cooled technique with diverse air inlet and staggered scheme with a two-channel partition approach for thermal management of the cylindrical lithium-ion cells are studied in computational fluid dynamics. The simulation model is validated with experimental results. The obtained results demonstrate that the cells in the dual-directional air inlet arrangement had low maximum temperature difference among and within the cells and required least fan work. This arrangement required least fan work to generate optimal air inlet velocity of 2 m/s for 1, 2, and 3 C and 4 m/s for 4 C discharge rates. There is a reduction of 50% and 33% fan work for 3 and 4 C discharge rates, which are the majority operating points. Also, it shows that the temperature uniformity within the cells has improved.

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Section: Introductionmentioning

confidence: 87%

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

et al. 2020

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“…In the automotive industry, plug-in hybrid electric vehicles (PHEVs), hybrid electric vehicles (HEVs), and battery electric vehicles (BEVs) commonly utilize lithium-ion batteries (LIBs) [3]. The widespread use of LIBs is the result of 1) high specific power and energy densities [4]; 2) high nominal voltage and low self-discharge rate [5]; and 3) long cycle-life and no memory influence [6,7]. All these characteristics are required for electric vehicles (EVs) to achieve desirable driving range and vehicle speed [8].…”

Section: Introductionmentioning

confidence: 99%

High Reynold’s Number Turbulent Model for Micro-Channel Cold Plate Using Reverse Engineering Approach for Water-Cooled Battery in Electric Vehicles

et al. 2020

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The investigation and improvement of the cooling process of lithium-ion batteries (LIBs) used in battery electric vehicles (BEVs) and hybrid electric vehicles (HEVs) are required in order to achieve better performance and longer lifespan. In this manuscript, the temperature and velocity profiles of cooling plates used to cool down the large prismatic Graphite/LiFePO4 battery are presented using both laboratory testing and modeling techniques. Computed tomography (CT) scanning was utilized for the cooling plate, Detroit Engineering Products (DEP) MeshWorks 8.0 was used for meshing of the cooling plate, and STAR CCM+ was used for simulation. The numerical investigation was conducted for higher C-rates of 3C and 4C with different ambient temperatures. For the experimental work, three heat flux sensors were attached to the battery surface. Water was used as a coolant inside the cooling plate to cool down the battery. The mass flow rate at each channel was 0.000277677 kg/s. The k-ε model was then utilized to simulate the turbulent behaviour of the fluid in the cooling plate, and the thermal behaviour under constant current (CC) discharge was studied and validated with the experimental data. This study provides insight into thermal and flow characteristics of the coolant inside a cooing plate, which can be used for designing more efficient cooling plates.

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“…Therefore, the difference among these thermal conductivities may be because the four LiFePO 4 batteries studied in previous works may have different anode active materials (graphite or other materials), separator (polypropylene or other materials), and the porosities of positive/negative electrodes and separator. In fact, lots of researches on thermal conductivities of battery components, eg, positive/negative electrodes and separator, have been carried out in detail, which helps to explain the difference of thermal conductivity for the lithium‐ion battery. Panchal et al conducted a comprehensive experimental study on the thermal characteristics in terms of thermal conductivity and temperature gradient for the prismatic pouch lithium‐ion battery with LiFePO 4 cathode.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive study on thermal conductivity of the lithium‐ion battery

et al. 2020

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The reliable thermal conductivity of lithium-ion battery is significant for the accurate prediction of battery thermal characteristics during the charging/ discharging process. Both isotropic and anisotropic thermal conductivities are commonly employed while exploring battery thermal characteristics. However, the study on the difference between the use of two thermal conductivities is relatively scarce. In this study, the isotropic and anisotropic thermal conductivities of the four commercially available lithium-ion batteries, ie, LiCoO 2 , LiMn 2 O 4 , LiFePO 4 , and Li (NiCoMn)O 2 , were reviewed and evaluated numerically through the heat conduction characteristics inside the battery. The results showed that there are significant differences in the temperature distribution in the battery caused by the isotropic and anisotropic thermal conductivities, which could affect the layout and cooling effectiveness of battery thermal management system. Furthermore, the effective thermal conductivities of porous electrodes and separator were determined to establish thermal conductivity bounds of lithium-ion batteries combined with the thicknesses of battery components. The thermal conductivity bounds could be applied to evaluate the rationality of the thermal conductivity data used in battery thermal models.

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Measurement of Temperature Gradient (dT/dy) and Temperature Response (dT/dt) of a Prismatic Lithium-Ion Pouch Cell with LiFePO₄ Cathode Material

Cited by 27 publications

References 14 publications

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

High Reynold’s Number Turbulent Model for Micro-Channel Cold Plate Using Reverse Engineering Approach for Water-Cooled Battery in Electric Vehicles

A comprehensive study on thermal conductivity of the lithium‐ion battery

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Measurement of Temperature Gradient (dT/dy) and Temperature Response (dT/dt) of a Prismatic Lithium-Ion Pouch Cell with LiFePO4 Cathode Material

Cited by 27 publications

References 14 publications

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

Study on effect of diverse air inlet arrangement on thermal management of cylindrical lithium‐ion cells

High Reynold’s Number Turbulent Model for Micro-Channel Cold Plate Using Reverse Engineering Approach for Water-Cooled Battery in Electric Vehicles

A comprehensive study on thermal conductivity of the lithium‐ion battery

Contact Info

Product

Resources

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Measurement of Temperature Gradient (dT/dy) and Temperature Response (dT/dt) of a Prismatic Lithium-Ion Pouch Cell with LiFePO₄ Cathode Material