Date of Award
2024
Degree Type
Thesis
Degree Name
Master of Science in Mechanical Engineering and Applied Mechanics
Department
Mechanical, Industrial and Systems Engineering
First Advisor
Ashutosh Giri
Abstract
As technology improves, there is a need for better and more efficient energy storage and lithium-ion batteries have emerged as the primary energy storage device. They have positive electrochemical properties, are easily accessible, and rechargeable. However, lithium-ion batteries have been known to fail, leading to research into the failure mechanisms. As some of these failure mechanisms, such as thermal runaway, depend on thermal interactions, this paper aims to investigates thermal multibody effects of spherical inclusions in a porous matrix to gain insight into thermal effects of a realistic lithium-ion battery microstructure. Analytical solutions to this problem, such as Maxwell’s thermal conductivity relation, Rayleigh’s thermal conductivity relation, and Bruggeman’s effective thermal conductivity that use effective medium theory in order to calculate the effective thermal conductivity of the system. It is hypothesized that changing the matrix thermal conductivity, the distance between spheres, and the size of the spheres will result in thermal interaction between the spheres, causing multi-body effects, and affect the effective thermal conductivity of the system, which the analytical methods do not account for.
Recommended Citation
Scholz, Nicholas, "INVESTIGATING THE THERMAL MULTIBODY EFFECTS IN SPHERICAL INCLUSIONS OF A POROUS MATRIX FOR LITHIUM-ION BATTERIES" (2024). Open Access Master's Theses. Paper 2580.
https://digitalcommons.uri.edu/theses/2580