[CCoE Notice] Dissertation Defense: The Effect of Buckling on the Interface Conductance in Flexible Lithium-ion Batteries

[Grayson, Audrey A]

Master’s Thesis Defense
Ahmet Akturk

The Effect of Buckling on the Interface Conductance in Flexible Lithium-ion Batteries

Committee members:
Dr. Haleh Ardebili (Chair of the committee),
Dr. Yashashree Kulkarni, Dr. Jae-Hyun Ryou, Dr. Debora Frigi Rodrigues
Location: Mechanical Engineering Large Conference Room.
Date: November 23, 2015. Time: 12.30 p.m.
Abstract
Flexible batteries used in flexible applications including medical implants, wearable electronics, consumer electronics or roll-up displays are often subjected to bending and buckling during their operation life. It is imperative to investigate the impact of buckling on the performance of the flexible lithium ion battery (LIBs). In this study, flexible thin-film lithium ion batteries based on solid nanocomposite polymer electrolyte were fabricated. The interfacial impedance in fresh and cycled flexible LIBs was investigated in flat and buckled configurations using electrochemical impedance spectroscopy (EIS). It is demonstrated that with increasing value of curvatures, contact resistances between components can be reduced and contact conductance of LIBs can be enhanced.

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