Effects of different coolants and cooling strategies on the cooling performance of the power lithium ion battery system: A review

Deng, Yuewen; Feng, Changling; Jiaqiang, E; Zhu, Huangqiu; Chen, Jingwei; Wen, Ming; Yin, Huichun

doi:10.1016/j.applthermaleng.2018.06.043

Cited by 333 publications

(104 citation statements)

References 132 publications

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“…The entropy coefficient in this last term (dUOC/dT) is a function of the state of charge (SOC), active material density and temperature. 29 Several experimental methods for determining a single cell's heat generation rate are presented in the literature. 4 The most frequently referenced method is accelerated rate calorimetry, which determines heat generation by recording a cell's temperature rise over the course of a procedure in an adiabatic environment.…”

Section: Literature Reviewmentioning

confidence: 99%

“…5 The enhanced heat capacity of liquids make them preferable for high power applications. 29 Liquid cooling systems may be split into two categories, direct (immersion) cooling and indirect (cold plate) cooling. 5 Indirect liquid cooling, compared to direct cooling with the same power, reportedly maintains a lower average temperature across the surface of a large pouch cell.…”

Section: Literature Reviewmentioning

confidence: 99%

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The Cell Cooling Coefficient: A Standard to Define Heat Rejection from Lithium-Ion Batteries

Hales

Diaz

Marzook

et al. 2019

J. Electrochem. Soc.

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Lithium-ion battery development is conventionally driven by energy and power density targets, yet the performance of a lithium-ion battery pack is often restricted by its heat rejection capabilities. It is therefore common to observe elevated cell temperatures and large internal thermal gradients which, given that impedance is a function of temperature, induce large current inhomogeneities and accelerate cell-level degradation. Battery thermal performance must be better quantified to resolve this limitation, but anisotropic thermal conductivity and uneven internal heat generation rates render conventional heat rejection measures, such as the Biot number, unsuitable. The Cell Cooling Coefficient (CCC) is introduced as a new metric which quantifies the rate of heat rejection. The CCC (units W.K −1) is constant for a given cell and thermal management method and is therefore ideal for comparing the thermal performance of different cell designs and form factors. By enhancing knowledge of pack-wide heat rejection, uptake of the CCC will also reduce the risk of thermal runaway. The CCC is presented as an essential tool to inform the cell down-selection process in the initial design phases, based solely on their thermal bottlenecks. This simple methodology has the potential to revolutionise the lithium-ion battery industry.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

The Cell Cooling Coefficient: A Standard to Define Heat Rejection from Lithium-Ion Batteries

Hales

Diaz

Marzook

et al. 2019

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Generally, in order to ensure the safety and the cycle life of LIBs, it is necessary to control the battery temperature within a reasonable range and maintain a relatively uniform temperature distribution during operation. Therefore, it is necessary to apply the battery thermal management system (BTMS) in a power battery pack [6][7][8][9][10]. There are two mainstream cooling methods for battery thermal management systems currently used in vehicles, namely, air cooling and liquid cooling.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Improvements of the Power Battery Pack with Liquid Cooling for Electric Vehicles

et al. 2019

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In order to ensure thermal safety and extended cycle life of Lithium-ion batteries (LIBs) used in electric vehicles (EVs), a typical thermal management scheme was proposed as a reference design for the power battery pack. Through the development of the model for theoretical analysis and numerical simulation combined with the thermal management test bench, the designed scheme could be evaluated. In particular, the three-dimensional transient thermal model was used as the type of model. The test result verified the accuracy and the rationality of the model, but it also showed that the reference design could not reach the qualified standard of thermal performance of the power battery pack. Based on the heat dissipation strategy of liquid cooling, a novel improved design solution was proposed. The results showed that the maximum temperature of the power battery pack dropped by 1 °C, and the temperature difference was reduced by 2 °C, which improved the thermal performance of the power battery pack and consequently provides guidance for the design of the battery thermal management system (BTMS).

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“…Many researchers have studied liquid‐cooled BTMS . Water is not a commonly used coolant, but it can be the mainstream coolant in the future with the recent advancement in the multiobjective optimization design of mini‐channel plate liquid cooling systems …”

Section: Introductionmentioning

confidence: 99%

“…27,28 Water is not a commonly used coolant, but it can be the mainstream coolant in the future with the recent advancement in the multiobjective optimization design of mini-channel plate liquid cooling systems. 29 Huo et al 30 designed a BTMS for mini-channel cooling plates, studied the effects of channel number, fluid direction, inlet mass flow rate, and ambient temperature on cooling performance, and made reasonable recommendations for liquid-cooled BTMS. Jin et al 31 proposed an ultrathin mini-channel liquid-cooled plate thermal management system, which mainly interacts with auxiliary flow channels and has an inclined structure that can considerably improve the heat transfer performance of the small cooling system.…”

Section: Introductionmentioning

confidence: 99%

Novel investigation strategy for mini‐channel liquid‐cooled battery thermal management system

et al. 2019

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Summary Many researchers have focused on liquid‐cooled devices with simple structure and high efficiency, which promoted the gradual development of the mini‐channel liquid‐cooled plate battery thermal management system (BTMS), due to the advancement of liquid cooling technology. This paper has proposed an electrochemical‐thermal coupling model to numerically predict the thermal behavior of the battery pack in different parameters of mini‐channel cold plates and optimize the parameter combinations. The effects of cooling plate width, mini‐channel interval, and inlet mass flow rate on the heat dissipation performance of the system were analyzed at a constant C‐rate to provide a reliable experimental basis for the optimization model. Results indicate that increasing the cold plate width and the inlet mass flow rate reduce the temperature and temperature gradients. In addition, the minimum temperature difference is obtained at the mini‐channel interval of 6 mm. The optimum cooling plate width (90 mm), mini‐channel interval (4 mm), and inlet mass flow rate (80 g/s) are determined using the orthogonal test, analysis of variance, and comprehensive analysis of multi‐index results. The addition of an auxiliary cooling system based on the optimized combination further reduces the maximum temperature and temperature difference of the battery pack by 4.9% and 9.2%, respectively. The developed strategy and methods can further improve the performance of the BTMS and provide a reference for the development of a compact battery pack at high discharge rates for engineering applications.

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Effects of different coolants and cooling strategies on the cooling performance of the power lithium ion battery system: A review

Cited by 333 publications

References 132 publications

The Cell Cooling Coefficient: A Standard to Define Heat Rejection from Lithium-Ion Batteries

The Cell Cooling Coefficient: A Standard to Define Heat Rejection from Lithium-Ion Batteries

Thermal Analysis and Improvements of the Power Battery Pack with Liquid Cooling for Electric Vehicles

Novel investigation strategy for mini‐channel liquid‐cooled battery thermal management system

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