The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials

The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials

Bibliographic Details
Main Author: Davis, Shelby Taylor
Language:English
Published: The Ohio State University / OhioLINK 2020
Subjects:
Chemistry
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=osu1605683661067324
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-osu16056836610673242021-09-21T05:10:35Z The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials Davis, Shelby Taylor Chemistry We have synthesized a class of derivatized quinone-fused aza-phenazines (1-3) based on a new, mild condensation procedure to study the effects of synergistic hydrogen bonding and pi-pi interactions on the electrochemical behavior and cycling performance of small-molecule organic electrode materials (OEMs) in Li-ion batteries (LIBs). Utilizing solid-state cyclic voltammetry (CV) and galvanostatic charge-discharge cycling, we were able to demonstrate that relative to it analogs, 50 wt% cathodes of 3 exhibited a maximum specific capacity of 140 mAh g-1 with excellent cycling stability over 800 cycles. Even at a higher active material loading (75 wt%), 3 continued to display stable cycling and good capacity retention even at high rates of 10 C. To understand the electrochemical and cycling behavior of 3, we analyzed the charge storage mechanism acting within both 3 50 wt% cathodes and 75 wt% cathodes with kinetics studies, and found that both exhibit a combination of ion-diffusion and surface-based charge storage mechanism. 2020 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1605683661067324 http://rave.ohiolink.edu/etdc/view?acc_num=osu1605683661067324 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center.
collection NDLTD
language English
sources NDLTD
topic Chemistry
spellingShingle Chemistry
Davis, Shelby Taylor
The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
author Davis, Shelby Taylor
author_facet Davis, Shelby Taylor
author_sort Davis, Shelby Taylor
title The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
title_short The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
title_full The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
title_fullStr The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
title_full_unstemmed The Effects of Synergistic Hydrogen Bonding and Pi-Pi Interactions on the Cycle Stability and Charge Storage Mechanism of Organic Electrode Materials
title_sort effects of synergistic hydrogen bonding and pi-pi interactions on the cycle stability and charge storage mechanism of organic electrode materials
publisher The Ohio State University / OhioLINK
publishDate 2020
url http://rave.ohiolink.edu/etdc/view?acc_num=osu1605683661067324
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AT davisshelbytaylor effectsofsynergistichydrogenbondingandpipiinteractionsonthecyclestabilityandchargestoragemechanismoforganicelectrodematerials
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