Experimental and numerical investigation of the LiFePO4 battery cooling by natural convection

Kalkan, Orhan; Çelen, Ali; Bakırcı, Kadir

doi:10.1016/j.est.2021.102796

Cited by 32 publications

(12 citation statements)

References 29 publications

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“…Typically, air cooling can be classified as natural convection and forced convection. Recently, Kalkan et al [ 63 ] presented a natural air cooling case for battery thermal management under a high‐discharge rate of 5 C. However, natural air convection cooling shows the insufficient cooling efficiency due to the poor thermal conductivity as well as the low specific heat capacity of air and its dependence on ambient temperature. As a result, natural air cooling displays unacceptable performance in limiting temperature increment and controlling temperature uniformity, especially when batteries are exposed to high charge/discharge rate or fast acceleration.…”

Section: Traditional Battery Cooling Strategiesmentioning

confidence: 99%

Recent Developments of Thermal Management Strategies for Lithium‐Ion Batteries: A State‐of‐The‐Art Review

2022

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The performance of lithium‐ion batteries is quite dependent on temperature and a series of investigations on the battery thermal management system (BTMS) have been reported during the past decades. Herein, the recent developments of BTMS are thoroughly summarized. First, the thermal characteristics of the battery caused by different temperature conditions and temperature nonuniformity are described. Then, the thermal models, including electro‐thermal coupled model and electrochemical–thermal coupled model are briefly presented. Subsequently, various traditional strategies like air cooling, liquid cooling, phase change material (PCM) cooling, and heat pipe cooling are elaborated. With the development of battery technology, BTMS based on a single strategy alone cannot meet the growth of thermal requirements, especially under dynamic and high‐power energy conditions. Hence, a hybrid BTMS that integrates two or more cooling strategies begins to be studied and provide a feasible solution for the problem. The related studies on hybrid BTMS are also systematically reviewed from the perspective of combinations, such as air–PCM, liquid–PCM, heat pipe–PCM, and other hybrid strategies. Besides, the current research on battery preheating strategies is also summarized. Finally, insufficient present studies are pointed out, aiming to provide comprehensive guidance toward the development of battery thermal management.

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Section: Traditional Battery Cooling Strategiesmentioning

confidence: 99%

Recent Developments of Thermal Management Strategies for Lithium‐Ion Batteries: A State‐of‐The‐Art Review

2022

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“…As shown in the schematic diagram (Figure ), a single battery may fall into thermal runaway (TR) due to unjustified battery construction, internal short circuit, or different abuses, such as electrical abuses (external short circuit/overcharge/overdischarge), thermal abuses, and mechanical abuses (collision/extrusion/penetration). , If there are no effective protective measures to be taken, the TR propagation process within large LIB modules will occur, eventually resulting in fire or even explosion of energy storage power stations. Researchers and an energy storage power station integrator have comprehensively studied the inducement of TR and thermal spray from the perspectives of the battery or system through experimental/simulated research, and then the corresponding strategies were proposed. − …”

Section: Introductionmentioning

confidence: 99%

Thermal Runaway Characteristics of LFP Batteries by Immersion Cooling

Bai

Liu

et al. 2023

ACS Appl. Energy Mater.

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Energy storage power stations using lithium iron phosphate (LiFePO4, LFP) batteries have developed rapidly with the expansion of construction scale in recent years. Owing to complex electrochemical systems and application scenarios of batteries, there is a high risk of thermal runaway (TR) and TR propagation, which may result in fires or explosions. In this work, an oil-immersed battery cooling system was fabricated to validate its potential function on high-safety energy storage power stations. The TR characteristics of a 125 Ah prismatic LFP battery immersed in 10# transformer oil were thoroughly investigated via overcharging experiments. The battery under immersion cooling with dynamic flow of coolants displayed the highest cooling rate of 0.143 °C/s compared to the static cooling (0.074 °C/s) and air cooling (0.037 °C/s). Beyond that, the constructed dynamic cooling system decreased the operating temperature of the battery by about 3–5 °C at 1P, primarily attributing to the good heat dissipation. Our findings indicate that the oil-immersed cooling system can prevent both TR of batteries and TR propagation, exhibiting attractive prospects for application in energy storage power stations.

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“…The experiments are carried out at a high discharge of 5C-rate, for which a temperature of 325.2 K has been observed during the natural convection cooling. Accordingly, the study developed a correlation equation of the heat transfer rate through the battery surface at 11.5 W for 5C-rate discharge [34]. Based on this literature, the heat generation in the Li-ion cell during a chargedischarge depends on C-rate and the ambient environmental temperature.…”

Section: Introductionmentioning

confidence: 99%

Characterization and modelling of Al and Cu busbar during charging and discharging of Li-ion battery for electric vehicles

Mypati

Anwaar

Mitra

et al. 2023

Applied Thermal Engineering

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Experimental and numerical investigation of the LiFePO4 battery cooling by natural convection

Cited by 32 publications

References 29 publications

Recent Developments of Thermal Management Strategies for Lithium‐Ion Batteries: A State‐of‐The‐Art Review

Recent Developments of Thermal Management Strategies for Lithium‐Ion Batteries: A State‐of‐The‐Art Review

Thermal Runaway Characteristics of LFP Batteries by Immersion Cooling

Characterization and modelling of Al and Cu busbar during charging and discharging of Li-ion battery for electric vehicles

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