Analysis of the structure arrangement on the thermal characteristics of Li‐ion battery pack in thermoelectric generator

Zhu, Wenchao; Xie, Changjun; Song, Ying; Li, Weibo; Tang, Zebo

doi:10.1002/ese3.777

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…The coolant inlet entrance velocity is prescribed at 0.21 kg/s, while the outlet acts as a pressure outlet, maintaining normal atmospheric pressure [41]. The battery serves as the heat source, with internal heat generation configured using a User-Defined Function (UDF) program within the FLUENT software [42,43].…”

Section: Boundary Conditionsmentioning

confidence: 99%

Research on the heat dissipation performances of vehicle power battery pack with liquid cooling system

Yin,

Ni,

Shi

et al. 2024

Preprint

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Lithium-ion power batteries have become integral to the advancement of new energy vehicles. However, their performance is notably compromised by excessive temperatures, a factor intricately linked to the batteries' electrochemical properties. To optimize lithium-ion battery pack performance, it is imperative to maintain temperatures within an appropriate range, achievable through an effective cooling system. 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℃ and a flow rate of 2L/min exhibits superior synergistic performance, effectively enhancing the cooling efficiency of the battery pack. As the charge/discharge rate increases, battery heating power escalates, resulting in a notable rise in temperature and synergy angle. Optimal cooling efficiency is achieved with three cooling channel inlets, minimizing the temperature difference across the battery pack.

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Section: Boundary Conditionsmentioning

confidence: 99%

Research on the heat dissipation performances of vehicle power battery pack with liquid cooling system

Yin,

Ni,

Shi

et al. 2024

Preprint

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“…The results show that, with the incorporation of the TEG presented, a fuel consumption savings and CO 2 emissions reduction of 0.53% can be achieved. Zhu 33 studies the related structural and thermal properties of vehicle exhaust thermoelectric power generation and lithium–ion battery energy storage.…”

Section: Introductionmentioning

confidence: 99%

Development and heat transfer analysis of thermoelectric self‐powered fuel‐fired residential boiler

Xiao

Qiu

Gou

et al. 2022

Energy Science & Engineering

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Solid-state thermoelectric (TE) devices offer many interesting features compared with other methods of generation, such as no moving parts, high reliability, low maintenance, and straightforward integration with other heating equipment. In this study, a thermoelectric assembly was integrated into a residential heating boiler to convert a portion of combustion heat to electricity while meeting space and/or water heating needs. A prototype was developed, in which recently developed thermoelectric modules were incorporated into a gas-fired boiler. The electricity generated by the thermoelectric assembly would be sufficient to power the electrical auxiliary components of the heating system. In this way, the heating system could operate entirely on fuel combustion and provide the consumer with heating system reliability and a reduction in power consumption. A model for the thermoelectric conversion system was established and the thermal resistance analysis was carried out to show the influence of heat transfer coefficients and other parameters on power output and efficiency, and thus improve the system design. In this study, the single-module integrated assembly can produce a 22.5 W power output. However, each module of the four-/eight-module integrated assembly can only generate a power output of 7.85/9.175 W on average. The performance of a single module in a multimodule assembly is worse than that of a single module assembly. The number of modules placed on the furnace wall is not as many as possible but has an optimal value. In this experimental environment, the assembly of eight modules is the optimal choice. Furthermore, it is found that enhancing combustion-side heat transfer capacity is an effective way to promote system performance. The power output of the assembly composed of four modules will increase by 70% from 7.85 to 13.5 W due to the installation of the fin on the hot end.

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“…With different operating conditions, the control valve was used to adjust the opening of the two outlets, which greatly improved the controllability and flexibility of battery thermal management. In terms of battery arrangement, Zhu et al [ 22 ] considered three typical battery arrangements in the same battery module: equal arrangement, increasing arrangement, and decreasing arrangement. Then the study found that the temperature uniformity of the battery module in decreasing arrangement was the most uniform.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance of Reverse‐Layered Air‐Cooled Cylindrical Lithium Battery Pack Integrated with Staggered Battery Arrangement and Spoiler

Zhang

Zhu

2022

Energy Tech

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In recent years, with the influence of the current energy shortage and massive environmental pollution, the development of new energy electric vehicles has become a global focus. Lithiumion battery pack is one of the vital components of electric vehicles (EVs). Compared with other types of battery, with the advantages of high energy density, low self-discharge, and long cycle life, lithium-ion battery is extensively used in electric vehicles. [1][2][3][4] However, there is a phenomenon of heat accumulation in the process of the charge and discharge of lithium-ion batteries. The accumulated heat will have a significant impact on the performance and safety of the module of the battery pack, so it is necessary to take appropriate cooling measures. [5,6] Generally, the temperature range that lithium-ion batteries can work effectively is 10-50 C, and the maximum temperature difference of the battery module ought to be controlled within 5 C. To make the battery have a better working environment, the operating temperature of the battery pack ought to be limited between 20 and 40 C. [7,8] Consequently, to ensure it works in a suitable temperature environment, the design of a battery thermal management system is particularly important.At present, the common battery thermal management strategies include liquid cooling, [9,10] air cooling, [11,12] phase change materials (PCM) cooling, [13,14] heat pipe cooling, [15,16] hybrid cooling, [17,18] etc. Compared with other battery thermal management strategies, the air cooling system has been widely used on account of its advantages of lightweight, simple structure, and low cost. [19] However, in the existing air-cooled system, large temperature difference often occurs inside the battery pack. Therefore, for enhancing the heat dissipation performance of air-cooled battery thermal management system (BTMS) and making the temperature distribution of the battery more uniform, scholars have done depth research on the structural design, battery arrangement, adding spoiler, and airflow control.In terms of structural design, Chen et al. [20] researched the symmetrical and asymmetrical air-cooled BTMS system, it was found that the symmetrical system had better heat dissipation performance than the asymmetrical system. And with a small number of batteries in BTMS, the temperature distribution of the batteries was more uniform. Liu et al. [21] proposed a new and original battery thermal management system of J-type, which had one more outlet than the traditional U-type and Z-type BTMS. With different operating conditions, the control valve was used to adjust the opening of the two outlets, which greatly improved the controllability and flexibility of battery thermal management. In terms of battery arrangement, Zhu et al. [22] considered three typical battery arrangements in the same battery module: equal arrangement, increasing arrangement, and decreasing arrangement. Then the study found that the temperature uniformity of the battery module in decreasing

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Analysis of the structure arrangement on the thermal characteristics of Li‐ion battery pack in thermoelectric generator

Cited by 10 publications

References 32 publications

Research on the heat dissipation performances of vehicle power battery pack with liquid cooling system

Research on the heat dissipation performances of vehicle power battery pack with liquid cooling system

Development and heat transfer analysis of thermoelectric self‐powered fuel‐fired residential boiler

Thermal Performance of Reverse‐Layered Air‐Cooled Cylindrical Lithium Battery Pack Integrated with Staggered Battery Arrangement and Spoiler

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