Thermal management and forced air-cooling of supercapacitors stack

Voicu, Ionuț; Louahlia-Gualous, H.; Gualous, Hamid; Gallay, R.

doi:10.1016/j.applthermaleng.2015.04.003

Cited by 34 publications

(22 citation statements)

References 21 publications

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“…A thermal model whose equations are the fundamental heat transfer laws is proposed in [154] and has been used in the following research works like [155]. Given the small temperature difference between the SC surface and the ambient air, many authors disregard the effect of radiation as a heat transfer mechanism [83], [156], [157]. Enclosed modules comprising several cells and cooled by natural convection are usually modeled as thermal equivalent circuits, like the one proposed in [83] and shown in Fig.…”

Section: E Thermal Modelsmentioning

confidence: 99%

“…The generated heating powerQ gen is dissipated through the module, the module thermal capacity is represented by C th and the conduction and convection mechanisms are grouped and quantified by thermal resistance R th . For the cases in which an airflow is forced around the cells to improve the heat dissipation, some authors propose modeling the process with an equivalent thermal circuit [156] while others prefer Fluid Dynamic Software to increase the accuracy of the model [157]. A usual approach to experimentally characterize the thermal performance of an SC is by achieving an almost constant heat power generation in the device resulting from its normal operation.…”

Section: E Thermal Modelsmentioning

confidence: 99%

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Supercapacitors: Electrical Characteristics, Modeling, Applications, and Future Trends

et al. 2019

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Energy storage systems are playing an increasingly important role in a variety of applications, such as electric vehicles or grid-connected systems. In this context, supercapacitors (SCs) are gaining ground due to their high power density, good performance, and long maintenance-free lifetime. For this reason, SCs are a hot research topic, and several papers are being published on material engineering, performance characterization, modeling. and post-mortem analysis. A compilation of the most important millstones on this topic is essential to keep researchers on related fields updated about new potentials of this technology. This review paper covers recent research aspects and applications of SCs, highlighting the relationship between material properties and electrical characteristics. It begins with an explanation of the energy storage mechanisms and materials used by SCs. Based on these materials, the SCs are classified, their key features are summarized, and their electrochemical characteristics are related to electrical performance. Given the high interest in system modeling and a large number of papers published on this topic, modeling techniques are classified, explained, and compared, addressing their strengths and weaknesses, and the experimental techniques used to measure the modeled properties are described. Finally, SCs are successfully used in the market sectors, as well as their growth expectations are analyzed. The analysis presented herein gives the account of the expansion that the SC market is currently undergoing and identifies the most promising research trends on this field.

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Section: E Thermal Modelsmentioning

confidence: 99%

Section: E Thermal Modelsmentioning

confidence: 99%

Supercapacitors: Electrical Characteristics, Modeling, Applications, and Future Trends

et al. 2019

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“…[ 4,9–12 ] An optimized thermal management of EDLCs is therefore a prerequisite for many applications. [ 13,14 ]…”

Section: Introductionmentioning

confidence: 99%

Design and Use of a Novel In Situ Simultaneous Thermal Analysis Cell for an Accurate “Real Time” Monitoring of the Heat and Weight Changes Occurring in Electrochemical Capacitors

2021

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Herein, the design and use of a novel in situ simultaneous thermal analysis (STA) cell is reported the first time, which allows a precise monitoring of the variation of heat flow, mass loss, resistance, and capacitance occurring in electrical double layer capacitors (EDLCs) operating in conditions comparable to real applications. Utilizing this in situ STA cell, the impact of the operating voltage on the stability of EDLCs during float tests is investigated, and it is shown that the first hours of these tests are the most critical for the stability of the devices. The novel in situ STA cell proposed here can be utilized for the investigation of any kind of electrochemical system, and it can be considered a novel and powerful tool for the investigation of the heating and mass variations occurring in these systems.

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“…Under the low‐temperature scenario, preheating of the battery may be needed to ensure desired driving performance 17 . Battery thermal management systems are normally classified as active or passive and mainly include air cooling, 18‐21 liquid cooling, 22‐24 and application of phase change materials (PCMs) 25‐27 . Among these methods, the forced air‐cooling system is the most frequently used technique owing to its simple configuration, ease of construction and maintenance, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Effects of micro heat pipe arrays on thermal management performance enhancement of cylindrical lithium‐ion battery cells

2021

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Summary The performance of lithium‐ion (Li‐ion) batteries in a battery module is significantly affected by the operating temperature. Temperatures above 40°C can speed up the battery aging and shorten the lifespan and may even lead to thermal runaway. Besides, the maximum temperature deviation between the cells inside the battery module is normally expected to be less than 5°C. Among various cooling strategies used in thermal management of Li‐ion batteries, application of micro heat pipe arrays (MHPAs) has received little attention. Hence, in the present study, a feasibility study has been conducted to assess the thermal performance of such a thermal link in controlling both the maximum temperature and temperature dispersion within the desired range. The MHPA‐assisted cooling system was tested under various rates of heat generations (10‐25 W total) and degrees of inclination (−90° to +90°). Experimental results have revealed a significant influence of the MHPA angle of inclination on the temperature of the evaporating section of the heat pipe. The best thermal performance was found to be at an angle of inclination of −15° where the condenser is located above the evaporating section. Performance degradation was observed for all the MHPA orientations where the condenser is located below the evaporating section. The thermal performance of the MHPA‐assisted cooling system is also influenced by the rate of generated heat. The maximum effective thermal conductivity for the MHPA was measured to be about 75 000 W/m2 °C. A dimensional figure of merit is defined for the MHPA‐assisted cooling system.

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Thermal management and forced air-cooling of supercapacitors stack

Cited by 34 publications

References 21 publications

Supercapacitors: Electrical Characteristics, Modeling, Applications, and Future Trends

Supercapacitors: Electrical Characteristics, Modeling, Applications, and Future Trends

Design and Use of a Novel In Situ Simultaneous Thermal Analysis Cell for an Accurate “Real Time” Monitoring of the Heat and Weight Changes Occurring in Electrochemical Capacitors

Effects of micro heat pipe arrays on thermal management performance enhancement of cylindrical lithium‐ion battery cells

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