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Analysis of Complex Electrochemical Systems (ACES) lab

Dr. Joshua W. Gallaway is an Associate Professor of Chemical Engineering at Northeastern University. He received his Ph.D. in Chemical Engineering from Columbia University in 2007, followed by postdoctoral work at Columbia and then a position as Senior Research Associate at the City University of New York (CUNY) Energy Institute. There he worked on rechargeable alkaline battery technology that contributed to the founding of Urban Electric Power (UEP). He joined Northeastern in 2017. The Gallaway group is a battery engineering research laboratory studying the electrochemical and structural mechanisms that govern battery performance across aqueous, lithium, and primary cell systems. The group uses operando synchrotron characterization combined with electrochemical modeling and cell engineering, with support from the National Science Foundation, Department of Energy, Department of Defense, NASA, and industry partners. Dr. Gallaway has published over 50 peer-reviewed articles and book chapters in journals including Joule, ACS Energy Letters, JACS, and Advanced Energy Materials. He serves as Member-at-Large of the Battery Division of the Electrochemical Society (ECS) and as Chair of the ECS New England Section.

Professor Joshua Gallaway
Associate Professor
Department of Chemical Engineering
Northeastern University
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Office: 215 Cullinane Hall
Lab: 252 Egan Research Center
j.gallaway at northeastern.edu
(617) 373-3769
Office Hours Summer 2026:
By appt
Gallaway Research Group, May 2026

Recent Posts

TEM of hydrated and dehydrated birnessite

I had a reason to look at Matt Kim’s PhD dissertation, which was about synthesis of layered MnO2 birnessite compounds for Li-ion and Na-ion batteries. We published his work in this paper, but at the end of his dissertation I saw this image that didn’t make it into the paper. On the left you see a regular birnessite with a 7 angstrom interlayer, and on the right you see a dehydrated version, which is smaller because it is dehydrated and the interlayer H2O is gone.

I was looking at this and I was amazed because on the left I can see the H2O molecules between the layers. On the right you see black space only. Kind of a work of art. Matt, I’m sorry I left this out of the paper. Cutting the 60 figures down into a manuscript wasn’t the most orderly process, and I really should have left this one in. 🙂

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