"Lithium ion batteries have been widely used in consumer electronics and are beginning to move to the forefront of the automotive and power grid industries. Lithium ion batteries are desirable in these applications because they are high energy density and high specific energy cells, while remaining inexpensive and lightweight. Safety is a concern in every consumer application; therefore, in order for lithium ion battery use to continue growing, advances in battery management systems are needed. Thermal management of lithium ion batteries is currently a critical issue. Applications are becoming more dependent on active liquid thermal management systems. The development of precise battery active liquid thermal management systems begins with an accurate temperature model applicable to control design. This work is focused on the development of a dynamic active liquid cooled battery cell thermal model through the coupling of a lumped energy balance and a single particle electrochemical heat generation model. A fluid channel is added to the bottom of the cell and an aluminum heat sink is added to the side of the cell. Results demonstrate that fluid temperature has more effect on the cell temperature than fluid mass flow rate. The dynamic model developed in this work has an order of 135 and; therefore, is not applicable to controller design. Linearization about an equilibrium trajectory and model order reduction via the Global Arnoldi Algorithm (GAA) is applied. Results show good agreement between the first order reduced system and the non-linear system"--Abstract, page iv.
Landers, Robert G.
Mechanical and Aerospace Engineering
M.S. in Mechanical Engineering
Missouri University of Science and Technology
x, 66 pages
© 2012 Derek Brown, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Heat -- Transmission
Lithium ion batteries
Thermal analysis -- Experiments
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b9547644~S5
Brown, Derek, "Control oriented thermal modeling of lithium ion batteries" (2012). Masters Theses. 6904.