Experimental Analysis of an Innovative Electrical Battery Thermal Management System

The aim of the present work is to develop and test an innovative cooling system for the thermal management of batteries for electric vehicles (EVs). At present, the technology most used for electric propulsion is based on lithium-ion cells. The power supply unit must often deliver a large amount of...

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Bibliographic Details
Published in:Energies (Basel) 2023-07, Vol.16 (13), p.5071
Main Authors: Cattani, Luca, Malavasi, Matteo, Bozzoli, Fabio, D’Alessandro, Valerio, Giammichele, Luca
Format: Article
Language:English
Subjects:
Analysis
Automobiles, Electric
Batteries
batteries for electric vehicles
Boundary conditions
Cooling
Cooling systems
Electric cells
Electric propulsion
Electric vehicles
Energy consumption
Environmental impact
Evaporators
Heat
Heat exchangers
Heat pipes
Lithium
Lithium-ion batteries
Load distribution
Power supply
pulsating heat pipes
Steel pipes
Technology
Temperature gradients
thermal management system
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Summary:The aim of the present work is to develop and test an innovative cooling system for the thermal management of batteries for electric vehicles (EVs). At present, the technology most used for electric propulsion is based on lithium-ion cells. The power supply unit must often deliver a large amount of power in a short time, forcing the batteries to produce a considerable amount of heat. This leads to a high working temperature that can cause a sharp decrease in the battery performance or even a malfunction. Moreover, their working outside of the prescribed temperature range (20–40 °C) or with a significant temperature gradient across the battery meaningfully accelerates their aging or breakage. In this case, a battery thermal management system (BTMS) is necessary to allow the batteries to work as efficiently as possible. In the present work, a pulsating heat pipe with a three-dimensional structure is proposed as cooling technology for a battery pack. At first the performance of the proposed PHP is evaluated in a dedicated experimental setup under different boundary conditions and a wide spectrum of power input values. Then the PHP is tested by applying, as load at the evaporator section, heat power distribution corresponding to three different discharging processes of a battery. These tests, directly referring to an applicative case, show that the proposed 3D PHP has an optimal cooling ability and the possibility to offer a powerful solution for electrical battery thermal management.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16135071