Simulation analysis of the influence of internal surface morphology of mini‐channel on battery thermal management

Yang, Yi; Xu, Xiaoming; Li, Wenchao; Tong, Guangyao

doi:10.1002/er.5579

Cited by 11 publications

(6 citation statements)

References 23 publications

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“…In order to obtain the temperature distribution, it is necessary to carry out heat transfer analysis on the battery. Yang et al11 study the influence of surface topography in mini‐channel liquid cooling plate on the cooling effect of battery by using computational fluid dynamics (CFD) method. Heat generation is an important direction to analyse the temperature distribution of the battery, Xiao and Choe12 directly investigated the heat generation, descript and experimental verified the heat source terms during charge and discharge.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous aging of large‐scale flexible lithium‐ion batteries based on micro‐heterostructures and simulation

et al. 2020

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To meet application demands of electric vehicles, cathode materials of batteries have to overcome the life limitation and performance attenuation caused by crack propagation on the surface of electrode particles. With the increase of size and power of batteries, the voltage gradient generated by metal foil current collectors with high conductivity cannot be neglected. This study reconstructed a porous microstructure based on images of surface morphologies of lithium manganese oxide particles collected by a field emission-scanning electron microscope. Based on this, a multi-scale and multi-physics simulation model coupling electrochemo-thermo-mechanical behaviours was developed to predict heterogeneous mechanical stress and capacity loss of a large-scale flexible lithium-ion battery. The results arising from use of the model show that: (1) Lithium in electrode particles cannot be diffused in time under a high-charge and discharge rate, and the capacity loss of the battery is directly proportional to the stress generated on the electrode particles. Capacity loss at discharge rate of 10C is 46% higher than that at the rate of 1C and corresponding stress in the microstructure increases by 16%. (2) In the design of the battery layout adopted in this study, utilization rates of electrodes and temperature fields are highly heterogeneous at the higher rate. Mechanical stress near the tab is 8% higher than that at the bottom edge, and it is speculated that the rate of aging of the tab is 35% higher. (3) Mechanical stress during lithium extraction in the cathode during charge is less than half of that during discharge. Attributed to small influences of material activity and excellent performance of lithium titanate oxide in the anode, capacity loss during charge is only 2%. (4) During discharge, stress in the contact region of between particles is the largest, resulting in the decrease of the activity and the low lithium-ion concentration. This leads to cracks during cyclic charging and discharging, which further decreases the activity of the materials. (5) Heterogeneity in the distribution of lithium-ion concentration with different sizes of particles significantly rises with the rate. The model built in this research couples the analysis of temperature field of a battery cell and stress field of the microstructure, which is conducive to understanding mechanisms underlying performance attenuation of the large-scale flexible lithium-ion battery under high-rate use.

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Section: Introductionmentioning

confidence: 99%

Heterogeneous aging of large‐scale flexible lithium‐ion batteries based on micro‐heterostructures and simulation

et al. 2020

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“…Studies are available that investigates the influence of liquid channels in prismatic batteries 34‐37 . Wang et al 38 proposed an electrochemical‐thermal coupling model to numerically predict the thermal behavior of the battery pack in different parameters of mini‐channel cold plates.…”

Section: Introductionmentioning

confidence: 99%

Hybrid cooling of cylindrical battery with liquid channels in phase change material

Jilte

Afzal²,

Islam

et al. 2021

Int J Energy Res

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Summary In an electric vehicle, energy storage is in the form of electrochemical batteries, which are prone to thermal runaway and capacity fading if not maintained below safe temperature limits. An efficient battery cooling system is necessary for safer usage of electric cars during their life cycle. The current work presents a novel design that allows the coupling of liquid channels to a phase change material container in cylindrical batteries. The channeling approach allows heat dissipation from the phase change material container to both circulating media and convecting air. The design also helps to operate the cooling system without the circulation of liquid media in case of low ambient conditions. The comparison of the proposed system with a noncoupled liquid channel system is also presented to underline the merits of the system. The cooling media at a supply temperature of 30°C and the flow rate of 30 mL/min is adequate during the high ambient temperature of 40°C. The coupling of liquid channels to phase channel containers resulted in lowering the battery temperature well below 41.2°C even at an extremely high ambient temperature of 40°C.

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“…[22][23][24] Micro channel radiator has been widely used due to compact structure, small size, and light. [25][26][27][28] The influences of the parameters for the cooling plate, as well as the flow velocity and flow direction, have been instigated. 29 Qian et al 30 proved that the micro channel thermal management system (TMS) can control the temperature distribution of the battery effectively.…”

Section: Introductionmentioning

confidence: 99%

“…However, liquid forced convection cooling has higher potential compared to phase change cooling in BTMS 22–24 . Micro channel radiator has been widely used due to compact structure, small size, and light 25–28 . The influences of the parameters for the cooling plate, as well as the flow velocity and flow direction, have been instigated 29 .…”

Section: Introductionmentioning

confidence: 99%

Parametric study and optimization on novel fork‐type mini‐channel network cooling plates for a Li‐ion battery module under high discharge current rates

Shi

Xie

et al. 2021

Intl J of Energy Research

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When a lithium-ion battery works under high current, its working temperature is easy to exceed the allowable working temperature, resulting in the decrease of battery life. This may cause the non-uniformity of the internal working temperature of the battery and affect the working parameters of the battery. Therefore, an effective thermal management system is needed to enhance the thermal performance of the battery, improve the work efficiency, and extend the service life of the battery. In this study, we propose a new type of fork type mini-channel cooling plate based on genetic optimization algorithm to reduce the working temperature of battery and obtain better thermal uniformity.First, the thermal performance of co-current type cooling plates is experimentally and numerically studied. The heat transfer ability of cross flow cooling plates used to cool the Li-ion Battery is evaluated by parametric method. Second, a multi-objective genetic algorithm optimization is finally performed, considering the balance of the maximum value for temperature and pressure drop.Compared with the previous study, the reduction of temperature difference of this cooling plate can be up to 2 C. In contrast, the pressure drop penalty and thermal resistance of the optimized cooling plates can be reduced by 20% and 40%, respectively. Thirdly the thermal performance of a battery module with eight battery cells is also examined numerically. The maximum ΔT of the battery pack among cells is 4.83 C for V = 48 mL/s, which implies that the battery pack can work normally. This study indicates that batteries with the proposed new cooling plates have much better temperature uniformity.

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Simulation analysis of the influence of internal surface morphology of mini‐channel on battery thermal management

Cited by 11 publications

References 23 publications

Heterogeneous aging of large‐scale flexible lithium‐ion batteries based on micro‐heterostructures and simulation

Heterogeneous aging of large‐scale flexible lithium‐ion batteries based on micro‐heterostructures and simulation

Hybrid cooling of cylindrical battery with liquid channels in phase change material

Parametric study and optimization on novel fork‐type mini‐channel network cooling plates for a Li‐ion battery module under high discharge current rates

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