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Novel Organic and Carbon-Based Electrode Materials for Rechargeable Batteries.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Novel Organic and Carbon-Based Electrode Materials for Rechargeable Batteries./
Author:	Karimi, Zahra.
Description:	1 online resource (131 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-02, Section: A.
Contained By:	Dissertations Abstracts International85-02A.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9798380128339

Novel Organic and Carbon-Based Electrode Materials for Rechargeable Batteries.
Karimi, Zahra.

Novel Organic and Carbon-Based Electrode Materials for Rechargeable Batteries. - 1 online resource (131 pages)

Source: Dissertations Abstracts International, Volume: 85-02, Section: A.

Thesis (Ph.D.)--The University of Utah, 2023.

Includes bibliographical references

The goal of this research is to improve current energy storage systems by providing low-cost, environmentally-friendly electrode materials and ensuring a stable and secure supply of all key materials. Two specific approaches to this goal are explored in this work: 1) new organic radical-based electrode materials for lithium-ion batteries (LIBs) and 2) the use of ultra-low cost coal char from a Utah mine as electrode material in sodium-ion batteries (SIBs) and electrochemical double layer capacitors.Many currently utilized inorganic cathode materials in LIBs suffer from high costs and socioeconomic and environmental issues surrounding their raw materials extraction. One approach to address these challenges is to use more environmentally-friendly and abundant cathode materials like organic radicals. Stable organic radicals have great potential to become a new generation of high-capacity and high-power cathode materials for LIBs. Organic radical materials present some key challenges, limiting their present use in electrochemical cells including nonconductive polymer backbones and solubility in typical organic battery electrolytes. To overcome these challenges, we investigate cross-linking of TEMPO to pyrene (p-TEMPO), both to reduce the solubility of the active organic radical and enable π−π stacking interactions with aromatic carbons. The reversibility and capacity of p-TEMPO in battery electrolytes is explored, as well as the immobilization of p-TEMPO on fullerene C60 and 3D graphene foam electrodes via π−π stacking interactions.To meet grid-scale energy storage cost targets, there is great interest in replacing lithium with more cost-effective and abundant elements, including sodium. SIB socioeconomic and environmental sustainability can be further improved compared to current LIBs by utilizing hard carbons from low-cost, abundant sources as anode materials. This work explores the application of coal char as an electrode material for electrochemical double-layer capacitors and SIBs. In the first part of this work, we investigate the effect of deashing conditions (acid type and concentration) on the SIB anode properties of SUFCO char. In the second part, we investigate the effect of electrolyte composition on the electrochemical performance of SUFCO char as an ultra-low-cost supercapacitor electrode. Overall, this work has made several contributions toward providing low-cost, environmentally-friendly electrode materials for rechargeable batteries and supercapacitors.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380128339Subjects--Topical Terms:

557493
Mechanical engineering.
Subjects--Index Terms:

Energy storage systemsIndex Terms--Genre/Form:

554714
Electronic books.

Novel Organic and Carbon-Based Electrode Materials for Rechargeable Batteries.
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