J
Jeffrey A. Kowalski
Researcher at Massachusetts Institute of Technology
Publications - 21
Citations - 1491
Jeffrey A. Kowalski is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Electrolyte & Engineering. The author has an hindex of 13, co-authored 18 publications receiving 1098 citations. Previous affiliations of Jeffrey A. Kowalski include Argonne National Laboratory.
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Pathways to low-cost electrochemical energy storage: a comparison of aqueous and nonaqueous flow batteries
TL;DR: In this article, the authors investigated electrochemical systems capable of economically storing energy for hours and presented an analysis of the relationships among technological performance characteristics, component cost factors, and system price for established and conceptual aqueous and nonaqueous batteries.
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High current density, long duration cycling of soluble organic active species for non-aqueous redox flow batteries
Jarrod D. Milshtein,Aman Preet Kaur,Matthew D. Casselman,Jeffrey A. Kowalski,Subrahmanyam Modekrutti,Peter L. Zhang,N. Harsha Attanayake,Corrine F. Elliott,Sean Parkin,Chad Risko,Fikile R. Brushett,Susan A. Odom +11 more
TL;DR: In this article, the rational design of organic molecules with flow cell engineering was combined to boost the performance of non-aqueous redox flow batteries (NAqRFBs) for grid energy storage, achieving a current density of 100 mA cm−2 with undetectable capacity fade over 100 cycles.
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“Wine-Dark Sea” in an Organic Flow Battery: Storing Negative Charge in 2,1,3-Benzothiadiazole Radicals Leads to Improved Cyclability
Wentao Duan,Wentao Duan,Jinhua Huang,Jeffrey A. Kowalski,Jeffrey A. Kowalski,Ilya A. Shkrob,M. Vijayakumar,M. Vijayakumar,Eric D. Walter,Baofei Pan,Zheng Yang,Zheng Yang,Jarrod D. Milshtein,Jarrod D. Milshtein,Bin Li,Chen Liao,Zhengcheng Zhang,Wei Wang,Jun Liu,Jun Liu,J.S. Moore,J.S. Moore,Fikile R. Brushett,Fikile R. Brushett,Lu Zhang,Xiaoliang Wei,Xiaoliang Wei +26 more
TL;DR: In this article, a new heterocyclic organic anolyte molecule, 2,1,3-benzothiadiazole, has been reported, which has high solubility, a low redox potential, and fast electrochemical kinetics.
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Recent advances in molecular engineering of redox active organic molecules for nonaqueous flow batteries
Abstract: Cost-effective electrochemical energy storage will play a critical role as society transitions to a sustainable energy economy. Nonaqueous flow batteries employing redox active organic molecules are an emerging energy storage concept. A key advantage of this device over the more established aqueous flow battery is the promise for higher cell potentials (>3 V), enabled by the larger electrochemical stability windows of nonaqueous electrolytes. Additionally, nonaqueous flow batteries could leverage new redox couples that are incompatible with aqueous electrolytes due to low solubility, chemical reactivity, and redox potentials outside of the aqueous stability window. Taking advantage of these characteristics may lead to higher energy densities, smaller system footprints, and lower costs. This mini review summarizes recent developments in all-organic nonaqueous chemistries with a focus on tailoring organic molecules for improved physical and electrochemical properties. Key opportunities and challenges in the science and engineering of these devices are presented with a goal of meeting stringent grid cost targets.
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A stable two-electron-donating phenothiazine for application in nonaqueous redox flow batteries
Jeffrey A. Kowalski,Matthew D. Casselman,Aman Preet Kaur,Jarrod D. Milshtein,Corrine F. Elliott,Subrahmanyam Modekrutti,N. Harsha Attanayake,Naijao Zhang,Sean Parkin,Chad Risko,Fikile R. Brushett,Susan A. Odom +11 more
TL;DR: In this article, a simple modification of N-ethylphenothiazine, which is only stable as a radical cation (not as a dication), was reported, and it was shown that introducing electron-donating methoxy groups to nitrogen leads to dramatically improved stability of the doubly oxidized (dication) state.