Temperature field and temperature difference of a battery package for a hybrid car

Ni, Peiyong; Wang, Xiangli

doi:10.1016/j.csite.2020.100646

Cited by 12 publications

(8 citation statements)

References 17 publications

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“…There is a parameter that should be taken into consideration in order to show the performance of the battery cooling system which is the maximum temperature difference in the surface battery cell which are also called as the battery temperature uniformity as shown in Figure 8. Any cooling performance is not acceptable if the surface temperature difference is more than 5 o C [22][23][24][25]. Bad temperature uniformity causes different charging/discharging in the battery cells, resulting in an electrical imbalance in the cells, thereby reducing the performance of the battery cell [26].…”

Section: Temperature Uniformitymentioning

confidence: 99%

Numerical Simulation on Heat Transfer Performance of a Liquid Cold Plate for Cooling of the Electric Vehicle Battery

Shdaifat

Zulkifli²,

Sopian³

et al. 2023

ARFMTS

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Around the world, there is a significant increase in the number of electric vehicles on the roads. Among the reasons are the aims to reduce the global dependency on oil as an energy source due to its political and economic dimensions especially for the non-oil producing countries by maximizing the use of electric vehicles. At the same time, it is also due to global concerns for the environmental aspect, especially global warming where transportation represents 30% of it. The battery is considered the main source of power for electric vehicles, but the battery tends to generate a significant amount of heat due to internal resistance during operation. The generated heat during the charging/discharging processes could lead to overheating in the battery which could end in battery failure. Therefore, dissipating the generated heat in the EV battery becomes essential through thermal management systems to ensure that the battery operates within a safe temperature range. Hence, the present study aims to introduce a new design of the liquid cooling system and also to investigate the effective parameter which affects its heat transfer performance. This paper is part of the overall study and describes the computational fluid dynamics by using ANSYS FLUENT software and numerical analysis to investigate the effect of the inlet/outlet arrangements on the heat transfer performance of a new LCP used for cooling the EV battery cell. There are three inlet/outlet arrangements: I-arrangement, Z-arrangement, and L-arrangement. The flow rate range of the present study is at the range of 0.4 – 1.6 l/min under 300 W heat flux. The L-arrangement has the best cooling performance compared to I-arrangement and Z-arrangement, where it achieves an average battery cell temperature which equals to 37.1 ⁰C along flow rates, while it is at 43.3 ⁰C and 38.0 ⁰C for I-arrangement and Z-arrangement, respectively. The temperature uniformity for both L-arrangement and Z-arrangement is almost similar, and they achieved good temperature uniformity at all flow rates, while I-arrangement failed to achieve good temperature uniformity at the lowest flow rates.

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Section: Temperature Uniformitymentioning

confidence: 99%

Numerical Simulation on Heat Transfer Performance of a Liquid Cold Plate for Cooling of the Electric Vehicle Battery

Shdaifat

Zulkifli²,

Sopian³

et al. 2023

ARFMTS

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“…BTMS cooling methods mostly involve the following parts: air cooling, liquid cooling, phase change materials (PCM), and heat pipes [10]. Many scholars have studied duct and air inflow of BTMS because air cooling is advantageous in simple structure, low cost, and low weight [11,12]. However, air cooling is rather restrictive.…”

Section: State Of the Artmentioning

confidence: 99%

Modelling and Simulation on Cavity Cold Plate for Li-Ion Battery Thermal Management

Wang¹,

Zhang²,

Zeng³

et al. 2022

Int. j. simul. model.

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Recently, the safety of electric vehicles using lithium-ion batteries has received increased attention due to overheating. Cold plates can effectively enhance heat dissipation. However, given the defects of existing cold plates, such as complex structure and heavy weight, a simple cavity cold plate is designed. The effects of cold plate inlet and outlet sizes (d2 and Δd), mass flow rate of coolant (W), and the inlet and outlet position on cell's maximum temperature and temperature difference are analysed using computational fluid dynamics (CFD) to enhance the heat dissipation capacity of the cold plate. Results show that the inlet and outlet sizes are positively correlated with the cell's maximum temperature. In addition, the cavity cold plate can satisfy the requirements of battery temperature difference by optimizing the inlet and outlet sizes and W. The cooling system of Model Z has better heat dissipation capacity than that of Model N. Conclusions obtained in the study have important reference for optimization of cavity cold plates.

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“…The parameters of rest heat analysis refer to the previous results of the calculation. The heat generation rate of the battery was loaded with reference to Table 3 and Equation (5). The temperature cloud of the battery under 1C and 2C discharge conditions can be solved separately in the ANSYS Workbench transient thermal analysis module, as shown in Fig.…”

Section: Single Battery Simulation and Experimental Verificationmentioning

confidence: 99%

“…At present, some researchers have studied the temperature field analysis of power batteries. Li Peiyong Ni et al conducted a characteristic test of a lithium-ion battery at various environment temperatures to study the best variation range of battery temperature, optimizing the heat dissipation of the battery pack at varying ambient temperatures [5]. Martín-Martín et al set up a thermal generation model, and successfully calculated the thermal density of power battery, determined the optimal position of the temperature sensor, and the fan pulse modulation level was automatically adjusted [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of locally enhanced heat dissipation of the polar on Li-ion power batteries

Fang

Cao

et al. 2021

THERM SCI

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For the sake of comprehend the influence of locally enhanced heat dissipation of the polar on Li-ion power batteries, coupling the thermal effect of anode and cathode, the heat generation model of Li-ion battery with different discharge magnification is obtained. Based on this model, the discharge process simulation analysis of the single battery is carried out and compared with the experimental results. The experiment results show that battery polarity heat effect has great influence on the temperature field distribution of the battery. Then, a locally enhanced heat dissipation structure is set up near the polar region and a comparative experiment is carried out by changing the discharge rate. Although the heat pipe can only slightly improve the discharge capacity of lithium ion battery by enhancing the heat dissipation capability of polarity, the heat generated under low discharge rate can be reduced by using the heat pipe with low emission rate, the heat generated by the polar region can be effectively and timely exported to reduce the temperature of the polar region and it can greatly reduce the overall temperature of the battery. Then, according to the thermal characteristics and the results of locally enhanced heat dissipation analysis, a new battery module is designed and simulated. And the prototype is completed and tested. The results show that this method can effectively reduce the temperature rise and temperature difference of the battery module by using locally enhanced heat dissipation structure. Finally, combined with the simulation and the experimental results, some useful suggestions are put forward for the design and manufacture of battery modules and battery boxes.

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Temperature field and temperature difference of a battery package for a hybrid car

Cited by 12 publications

References 17 publications

Numerical Simulation on Heat Transfer Performance of a Liquid Cold Plate for Cooling of the Electric Vehicle Battery

Numerical Simulation on Heat Transfer Performance of a Liquid Cold Plate for Cooling of the Electric Vehicle Battery

Modelling and Simulation on Cavity Cold Plate for Li-Ion Battery Thermal Management

Effect of locally enhanced heat dissipation of the polar on Li-ion power batteries

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