KES2-1011
Leveraging Polymer Chemistry to Understand Electrochemical Energy Storage Properties
Topic
S2. High-End Characterization/Polymer Physics/Properties
When and Where
Sep 30, 2026
10:20 - 10:45
Room 103
Session Chairs
Keiji TANAKA
Presenter(s)
Emily Pentzer (Texas A&M University)
Co-Author(s)
Abstract
This presentation will address how polymer chemistry can be used to understand the application of non-conjugated polymers in electrochemical energy storage. Random coil polymers bearing pendant redox active 2,2,6,6-tetramethylpiperidinyloxyl (TEMPO) groups are used to understand fundamental structure-property relationships. We will report on the impact of spacing of the TEMPO units on the polymer backbone with polymers prepared by acyclic diene metathesis, as well as the impact of tacticity on polymer chain conformation and mobility, free volume, and spacing of the redox active units, e.g., using poly(2,2,6,6-tetramethylpiperidinyloxy methacrylate, PTMA). Electrochemical analysis of the reaction diffusion and kinetics, as well as electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) analysis of the mass transfer process, reveal that specific capacity and energy are influenced by both processes. All-atom molecular dynamics (MD) simulations are used explain these observations. This work highlights that not only polymer composition, but also polymer organization in the solid state are important considerations in developing next-generation non-conjugated redox-active polymers for electrochemical energy storage
