1 INTRODUCTION. Lithium ion battery is regarded as one of the most promising batteries in the future because of its high specific energy density. 1-4 However, it forms a severe challenge to the battery safety
This paper delves into the heat dissipation characteristics of lithium-ion battery packs under various parameters of liquid cooling systems, employing a synergistic analysis approach. The findings demonstrate that a liquid cooling system with an initial coolant temperature of 15 °C and a flow rate of 2 L/min exhibits superior synergistic
Simulation of heat dissipation model of lithium- ion battery pack Maode Li1,*, Chuan He2, and Jinkui Zheng2 1Architecture Department, Tongji Zhejiang College. Jiaxing, Zhejiang, China 2School of Mechanical and Power Engineering, Tongji University. Shanghai, China Abstract. Lithium-ion power battery has become an important part of power battery
In the paper "Optimization of liquid cooling and heat dissipation system of lithium-ion battery packs of automobile" authored by Huanwei Xu, it is demonstrated that different pipe designs can improve the effectiveness of liquid cooling in battery packs. The paper conducts a comparative analysis between the serpentine model and the U-shaped model. Results from
decrease the peak temperature within battery pack below 223 K at a constant heat pro-duction rate of 170,000 W m 3 for heat transfer enhancement. The thermal management using PCM was then recommended for heat dissipation due to the fact that PCM could reserve abundant energy when the battery discharged and released heat to the ambient air
The excessively high temperature of lithium-ion battery greatly affects battery working performance. To improve the heat dissipation of battery pack, many researches have been done on the velocity of cooling air, channel shape, etc. This paper improves cooling performance of air-cooled battery pack by optimizing the battery spacing. The
Some simulation results of air cooling and phase change show that phase change cooling can control the heat dissipation and temperature rise of power battery well. The research in this
Some simulation results of air cooling and phase change show that phase change cooling can control the heat dissipation and temperature rise of power battery well. The research in this paper can provide better theoretical guidance for the temperature rise, heat transfer and thermal management of automotive power battery.
Effect of HP-based BTMS on battery startup heating in low temperature is evaluated. A heat pipe (HP) heat dissipation model of a lithium-ion-battery pack is established for the climate in the central and southern regions in China, and the heat transfer effects of various fins with different spacing and thickness are investigated.
3 天之前· This study introduces a novel comparative analysis of thermal management systems for lithium-ion battery packs using four LiFePO4 batteries. The research evaluates advanced
Therefore, an effective battery heat dissipation system is important for improving the overall performance of the battery pack. At present, the common lithium ion battery pack heat dissipation methods are: air cooling, liquid cooling, phase change material cooling and hybrid cooling. Here we will take a detailed look at these types of heat
Increasing the inlet air speed enhanced the heat dissipation of the battery pack and improved its temperature uniformity. Compared with the case of natural heat dissipation, the temperature increment of the battery pack decreased by 32.1 % at an inlet air speed of 3.0 m/s. Although the change in the spray frequency minimally affected the
In this paper, optimization of the heat dissipation structure of lithium-ion battery pack is investigated based on thermodynamic analyses to optimize discharge performance
In the present investigation, the numerical model was developed for a novel battery pack that integrates PCM, heat pipes, and nanoparticles and it is validated with the experiment. The model is employed to predict the thermal behaviour of LIB during fast charging and discharging. Notably, the impact of the orientation of cylindrical
When it operates without an external force for cooling, it needs natural convection technique to take away heat dissipation. Therefore, this study numerically examines three-dimensional...
When it operates without an external force for cooling, it needs natural convection technique to take away heat dissipation. Therefore, this study numerically examines three-dimensional transient natural convection of cylindrical lithium-ion batteries inside a rectangular pack with air between cylinders.
3 天之前· This study introduces a novel comparative analysis of thermal management systems for lithium-ion battery packs using four LiFePO4 batteries. The research evaluates advanced configurations, including a passive system with a phase change material enhanced with extended graphite, and a semipassive system with forced water cooling. A key innovation lies in
This paper delves into the heat dissipation characteristics of lithium-ion battery packs under various parameters of liquid cooling systems, employing a synergistic analysis
When it operates without an external force for cooling, it needs natural convection technique to take away heat dissipation. Therefore, this study numerically examines three-dimensional transient natural convection of
The findings demonstrate that a liquid cooling system with an initial coolant temperature of 15 °C and a flow rate of 2 L/min exhibits superior synergistic performance, effectively enhancing the...
To address the challenges posed by insufficient heat dissipation in traditional liquid cooled plate battery packs and the associated high system energy consumption. This study proposes three
Effect of HP-based BTMS on battery startup heating in low temperature is evaluated. A heat pipe (HP) heat dissipation model of a lithium-ion-battery pack is established
In the present investigation, the numerical model was developed for a novel battery pack that integrates PCM, heat pipes, and nanoparticles and it is validated with the
The findings demonstrate that a liquid cooling system with an initial coolant temperature of 15 °C and a flow rate of 2 L/min exhibits superior synergistic performance,
Xie et al. investigated the influence of inlet and outlet angles, and channel width between battery units on lithium-ion battery pack heat dissipation. Through single-factor analysis and orthogonal testing, three structural parameters were optimized. The results reveal that optimum cooling performance was achieved with an inlet angle of 2.5°, outlet angle of 2.5°,
In this work, simulation model of lithium-ion battery pack is established, different battery arrangement and ventilation schemes are comparatively analyzed, effects of different factors on heat dissipation performance of the battery pack under an optimal cooling strategy are evaluated based on the orthogonal experimental design and the fuzzy grey
The heat dissipation of lithium-ion battery pack has been an important factor affecting the battery life and traffic safety of electromobile. In order to explore the effect of different cooling pipeline design on the heat dissipation of lithium-ion battery pack, the surface temperature of a single lithium-ion battery under different conditions was studied by means of numerical calculation
In this paper, optimization of the heat dissipation structure of lithium-ion battery pack is investigated based on thermodynamic analyses to optimize discharge performance and ensure lithium-ion battery pack safety. First, the heat generation and heat transfer model of the lithium-ion battery cell are derived based on thermodynamic theory. Then
When it operates without an external force for cooling, it needs natural convection technique to take away heat dissipation. Therefore, this study numerically examines three-dimensional...
A heat pipe (HP) heat dissipation model of a lithium-ion-battery pack is established for the climate in the central and southern regions in China, and the heat transfer effects of various fins with different spacing and thickness are investigated.
Xu et al. [ 36] adopted a heat dissipation method coupled with a flat HP and liquid cooling to control the temperature of the battery pack with a discharge rate of 0.5C within a stable range, but it cannot be used in the case of a high discharge rate.
Cooling effect of battery pack was improved by adjusting the battery spacings. The excessively high temperature of lithium-ion battery greatly affects battery working performance. To improve the heat dissipation of battery pack, many researches have been done on the velocity of cooling air, channel shape, etc.
The staggered arrangement is more conducive to improving the heat dissipation of a battery, as it avoids the shielding of the airflow by the battery. Controlling the uniformity of the heat dissipation mode is also crucial to prevent large differences.
Low temperature has a great impact on the capacity and power of lithium-ion batteries. It is generally believed that the lower ion conductivity of the electrolyte at low temperatures is the main reason for the deterioration of the performance of lithium-ion batteries [ 13 ].
The lower the temperature, the smaller the synergistic angle of the fluid field and the more consistent the synergistic effect at different flow rates and coolant temperatures. With an increase in cooling flow rate and a decrease in temperature, the heat exchange between the lithium-ion battery pack and the coolant gradually tends to balance.
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