UC Berkeley

The central goal of this thesis is to understand the relationship between ion transport properties and morphology in block-copolymer electrolytes. The bulk of the work focuses on the systematic measurement of ion transport properties across various morphologies. However, in the course of that work it became clear that the effects of ionic currents on block-copolymer morphologies were unknown. To address this, a study was undertaken in which block-copolymer electrolyte morphologies were determined in situ while ionic currents were passed, and the result was that ionic currents can dramatically alter block-copolymer electrolyte morphologies.