Development of a hybrid cooling concept for cylindrical li-ion cells

Shahid, Seham; Chea, Branson; Agelin‐Chaab, Martin

doi:10.1016/j.est.2022.104214

Cited by 22 publications

(7 citation statements)

References 41 publications

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“…The most cost-effective is the air-based TMS; however, air has limited cooling capabilities due to its low thermal properties [6]. Fluids generally have higher cooling capacities compared to air; therefore, they are capable of improved cooling and can effectively maintain the required thermal environment for the operation of the Li-ion cells [7]. The simplest form of liquid-based TMS is designed using electrically insulating fluids.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Heat Transfer Enhancement Techniques on a Scalable Novel Hybrid Thermal Management Strategy for Lithium-Ion Battery Packs

Shahid,

Agelin-Chaab

2024

Batteries

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This paper introduces a novel hybrid thermal management strategy, which uses secondary coolants (air and fluid) to extract heat from a phase change material (paraffin), resulting in an increase in the phase change material’s heat extraction capability and the battery module’s overall thermal performance. A novel cold plate design is developed and placed between the rows and columns of the cells. The cold plate contains a single fluid body to improve the thermal performance of the battery module. Experimental studies were conducted to obtain the temperature and heat flux profiles of the battery module. Moreover, a numerical model is developed and validated using the experimental data obtained. The numerical data stayed within ±2% of the experimental data. In addition, the ability of nanoparticles to increase the thermal conductivity of water is examined and it is found that the cooling from the liquid cooling component is not sensitive enough to capture the 0.32 W/m K increase in the thermal conductivity of the fluid. Furthermore, in order to enhance the air cooling, fins were added within the air duct to the cold plate. However, this is not feasible, as the pressure drop through the addition of the fins increased by ~245%, whereas the maximum temperature of the battery module reduced by only 0.6 K. Finally, when scaled up to an entire battery pack at a high discharge rate of 7 C, the numerical results showed that the overall temperature uniformity across the pack was 1.14 K, with a maximum temperature of 302.6 K, which was within the optimal operating temperature and uniformity ranges. Therefore, the developed thermal management strategy eliminates the requirement of a pump and reservoir and can be scaled up or down according to the energy and power requirements.

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Section: Introductionmentioning

confidence: 99%

Investigation of Heat Transfer Enhancement Techniques on a Scalable Novel Hybrid Thermal Management Strategy for Lithium-Ion Battery Packs

Shahid,

Agelin-Chaab

2024

Batteries

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“…Liquid-based TMS is widely used within the industry due to the increased heat extraction capabilities of the fluids. However, the pumping power required for the continuous flow of fluids reduces the power availability to propel EVs [6]. A liquid-based TMS utilizes either an electrically insulating fluid or an electrically noninsulating fluid.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Hybrid Cooling Concepts with PCM Cooling for Electric Battery Packs

Shahid,

Agelin-Chaab

2023

JFFHMT

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In this paper, a hybrid thermal management strategy is proposed to increase the temperature uniformity and improve cooling within a Lithium-ion battery pack. Three different configurations are developed and compared. In all three configurations, the phase change material is placed directly with the cells, and liquid channels are placed in the battery pack to extract heat from the phase change materials. Furthermore, an air duct is placed at the top of the battery to extract heat from the fluids that are stationary within the liquid channels. In the first configuration, the liquid channels are placed in between the phase change material. In the second configuration, the location of the liquid channel is changed such that a part of it is in direct contact with the cells. This configuration is then modified for the third configuration such that for every three cells, there are two liquid channels. A baseline battery pack is also developed which contains only PCM cooling. Transient numerical studies were conducted, and the results indicated that through the first configuration, the maximum temperature was limited to 31.5 C and the temperature uniformity to 1.75 C. Moreover, this strategy does not require excessive pumping fluid power and high air velocities, which implies that less energy is required for the operation of the thermal management system.

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Section: Introductionmentioning

confidence: 99%

Comparison of Hybrid Cooling Concepts for Electric Battery Packs

Shahid¹,

Agelin‐Chaab²

2023

Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)

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In this paper, a hybrid thermal management strategy is proposed to increase the temperature uniformity and improve cooling within a Lithium-ion battery pack. Three different configurations are developed and compared. In all three configurations, the phase change material is placed directly with the cells, and liquid channels are placed in the battery pack to extract heat from the phase change materials. Furthermore, an air duct is placed at the top of the battery to extract heat from the fluids that are stationary within the liquid channels. In the first configuration, the liquid channels are placed in between the phase change material. In the second configuration, the location of the liquid channel is changed such that a part of it is in direct contact with the cells. This configuration is then modified for the third configuration such that for every three cells, there are two liquid channels. Transient numerical studies were conducted, and the results indicated that through the first configuration, the maximum temperature was limited to 31.5 °C and the temperature uniformity to 1.75 °C. Moreover, this strategy does not require excessive pumping fluid power and high air velocities, which implies that less energy is required for the operation of the thermal management system.

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Development of a hybrid cooling concept for cylindrical li-ion cells

Cited by 22 publications

References 41 publications

Investigation of Heat Transfer Enhancement Techniques on a Scalable Novel Hybrid Thermal Management Strategy for Lithium-Ion Battery Packs

Investigation of Heat Transfer Enhancement Techniques on a Scalable Novel Hybrid Thermal Management Strategy for Lithium-Ion Battery Packs

Comparison of Hybrid Cooling Concepts with PCM Cooling for Electric Battery Packs

Comparison of Hybrid Cooling Concepts for Electric Battery Packs

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