Numerical study on the air-cooled thermal management of Lithium-ion battery pack for electrical vehicles

Saechan, Patcharin; Dhuchakallaya, Isares

doi:10.1016/j.egyr.2021.11.089

Cited by 48 publications

(17 citation statements)

References 11 publications

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“…The study showed that the multichannel thermal management system was In terms of airflow control, Saechan and Dhuchakallaya investigated the effects of inlet velocity, discharge rate, and cell arrangement structure on the cooling performance. 69 The study concluded that at a discharge rate of 0.5 C, the natural convection mode can keep the maximum temperature of the battery below 40 °C. However, at discharge rates higher than 2 C, natural convection fails.…”

Section: Battery Thermal Management Systemmentioning

confidence: 99%

Review on Thermal Management of Lithium-Ion Batteries for Electric Vehicles: Advances, Challenges, and Outlook

Jing

et al. 2023

Energy Fuels

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Due to strict regulations and the requirement to reduce greenhouse gas emissions, electric vehicles (BEVs) are a promising mode of transportation. The lithium battery is the most important power source for an electric vehicle, but its performance and life are greatly restricted by temperature. To ensure the safety of automobile operation and alleviate mileage anxiety, it is urgent to understand the current situation and predict the development and challenge of battery thermal management system. This work reviews the existing thermal management research in five areas, including cooling and heating methods, modeling optimization, control methods, and thermal management system integration for lithium batteries. Battery thermal management types include air-based, liquid-based, PCM-based, heatpipe-based, and direct cooling. Designing a better battery thermal management system not only needs to be optimized using algorithms on the model but also it uses intelligent algorithms for precise control to achieve safety and reduce energy consumption. This work also reviews the differences in thermal management systems between square and cylindrical batteries and summarizes the development trend of modularity in battery thermal management systems.

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Section: Battery Thermal Management Systemmentioning

confidence: 99%

Review on Thermal Management of Lithium-Ion Batteries for Electric Vehicles: Advances, Challenges, and Outlook

Jing

et al. 2023

Energy Fuels

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Section: Current Status and Readiness Level Of Various Lib Cooling Te...mentioning

confidence: 99%

“…[11] It was also noted that when the ambient temperature (T a ) is 30 °C, internal air circulation can save up to 69.4% of total energy compared to external air circulation. [12] It was also found that natural convection is suitable for discharge rates under 0.5 C, and 1 m s À1 of airflow is sufficient for a 1 C discharge rate, but air cooling is not sufficient for a fast discharge rate of 2 C. [13] Figure 6 shows the variation in maximum temperature rise (ΔT rise,max ) of LiB with air velocity at different discharging rates and the maximum temperature (T max ) of LiB concerning the time at various inlet air temperatures. From Figure 6a, it is noted that the discharge rate increases the ΔT rise,max , but the airflow velocity has significant effects on lowering the temperature at a high charge and discharge rates.…”

Section: Power Limitsmentioning

confidence: 99%

Lithium‐Ion Battery Thermal Management Techniques and Their Current Readiness Level

2022

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The lithium‐ion battery (LiB) is currently an essential part of electric vehicles (EVs). The popularity of LiBs among EV manufacturers is because of their long life, fewer memory effects, high specific energy density, and lightweight. However, temperature affects the LiB life and performance to a great extent. The burden on battery thermal management (BTM) is significantly increased by the need to increase battery capacity and decrease the battery charging time. Hence, reliable and effective BTM is the need of the hour. Herein, the current status of different battery cooling techniques has been discussed along with their merits and demerits. The main objective of this paper is to inform the readers and give them a clear understanding of various cooling techniques and their current status and highlight any novel approaches being used by the researchers to improve these cooling techniques. Future needs and opportunities in this field have also been discussed.

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“…The authors have discussed the reasons for heat generation; heat transport and heat transfer from a Li-ion cell and discuss various cooling techniques to maintain battery pack within working limit of temperatures. 10,11 Air cooling is one of the simplest and cost effective cooling techniques which are adopted by many automotive manufactures but the performance of cooling is less effective. Further air cooling can be classified as active and passive based upon the nature of flow of air.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of thermo‐physical properties of different nanofluids for effective heat transfer leading to Li‐ion battery pack cooling

Thorat,

Sanap,

Gawade

2024

Energy Storage

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The rapid advancement in Lithium‐ion battery technology has significantly boosted the electric vehicle market worldwide. These batteries are highly sought after by automobile manufacturers and researchers due to their exceptional energy storage and power capabilities. However, efficient working temperatures ranges from 15°C to 35°C, making it essential to implement battery cooling and heating methods to maintain optimal performance. This study primarily focuses on battery cooling. The automotive manufactures have focused on ethylene glycol, water and synthetic oils as commonly used coolants for keeping the lithium‐ion battery pack within working temperature limits. However, these fluids have lower heat conduction, leading to reduced heat transfer rates and diminished cooling performance. To address this issue, nano‐enhanced fluids, which are engineered fluids containing suspended nanospheres, have been explored. The heat transfer properties of conventional coolants are increased using nano‐enhanced fluids, thereby improving heat conduction and promoting efficient heat transfer within the battery. The study compares the temperature‐related characteristic of different nano‐enhanced fluids, including oxides of copper (CuO), titanium (TiO2), aluminum (Al2O3), silicon (SiO2), and zinc (ZnO), when added to base fluids such as synthetic oils, water and ethylene glycol. The importance to capacity of specific heat, conductivity of fluid thermally, fluid resistance to flow and fluid volumetric mass which are affected by changes in temperature limits are stressed upon. Depending on the specific application and test conditions, the effectiveness of one nano‐enhanced fluid may outperform the others. In conclusion, the thermo physical properties of nanofluids play a critical role in maintaining the battery pack temperature within operating temperature limits. The selections of nanofluids for particular battery thermal management system depends upon its arrangement along the battery pack and cell geometry. The cooling performance using nanofluids as coolant is 10% to 15% higher than the conventional used fluids. This nano‐enhanced fluid show great promise in enhancing the cooling capabilities of battery cooling systems, contributing to improved Lithium‐ion battery performance in electric vehicles.

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Numerical study on the air-cooled thermal management of Lithium-ion battery pack for electrical vehicles

Cited by 48 publications

References 11 publications

Review on Thermal Management of Lithium-Ion Batteries for Electric Vehicles: Advances, Challenges, and Outlook

Review on Thermal Management of Lithium-Ion Batteries for Electric Vehicles: Advances, Challenges, and Outlook

Lithium‐Ion Battery Thermal Management Techniques and Their Current Readiness Level

A comparative study of thermo‐physical properties of different nanofluids for effective heat transfer leading to Li‐ion battery pack cooling

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