NMR Studies of Materials for Electrical Energy Storage: Continuing Support
Abstract
ABSTRACT: This continuation and expansion of current research activities covers several kinds of energy storage materials: polymer dielectrics for thin film capacitors and electrolytes for electrochemical capacitors and batteries. Alternatives to BOPP under investigation include polyvinylidene fluoride (PVdF) and glassy dipolar polymers under a variety of preparation conditions. A principal goal in this work is to examine dynamics of polymer chains and sidegroups in materials provided by collaborators using standard NMR methods as well as advanced techniques including Fast Field Cycling NMR (FFCNMR) and high pressure NMR,which will shed light on molecular level processes that may be correlated with electrical properties. Previously funded work established NMR as an effective means of probing molecular level orientation in mechanically, uniaxially stretched polymers. We propose to extend this methodology to biaxially oriented polymer films. For electrochemical capacitors, we will continue to investigate novel liquid electrolytes. Fundamental properties of ionic liquids withcrosscutting applications will also be studied using standard NMR as well as advanced NMR methods. As in all past ONR-funded projects over the last three decades, this investigation will leverage the efforts of numerous collaborators who will provide characterized materials for a suite of NMR measurements conducted at Hunter College.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 29, 2020
- Source ID
- N000142012186
Entities
People
- Steven Greenbaum
Organizations
- Office of Naval Research
- Research Foundation of The City University of New York
- United States Navy