Thermal Imaging of a Li-Ion Battery for the Estimation of the Thermal Parameters and Instantaneous Heat Dissipated Istituto Motori CNR

Format:

Book

Conference/Event

Author/Creator:

Sequino, Luigi, author.

Contributor:

Vaglieco, Bianca Maria

Conference Name:

Conference on Sustainable Mobility (2020-10-04 : Catania, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

The electrochemical performance of a lithium-ion battery is strongly affected by the temperature. During charge and discharge cycles, batteries are subjected to an increment of temperature that can accelerate aging and loss of efficiency if critical values are reached. Knowing the thermal parameters that affect the heat exchange between the battery surface and the surrounding environment (air, cooling fins, plates, etc) is fundamental to their thermal management. In this work, thermal imaging is applied to a laminated lithium-ion battery as a non-invasive temperature-indication method. Measurements are taken during the discharge phase and the following cooling down until the battery reaches the ambient temperature. The 2d images are used to analyze the homogeneity of the temperature distribution on the battery surface. Then, experimental results are coupled with mathematical correlations. The derivation of the instantaneous head released in the battery, Newton's cooling law for conduction and convention in transient conditions, and the energy balance equation are used to estimate two main thermal parameters, as the convective heat transfer coefficient and the specific heat capacity, and then to calculate the heat dissipated by the battery. The experimentally-based derivation of the above-mentioned thermal parameters will be useful for the future design of battery cooling systems

Notes:

Vendor supplied data

Publisher Number:

2020-24-0014

Access Restriction:

Restricted for use by site license