Roby Gauthier, Ph.D.

Research Scientist

prof_pic.jpg

Welcome to my website!

I am a proud French-Canadian

I obtained my Ph.D. in Physics at Dalhousie University, where I worked alongside Jeff Dahn. During this work, I studied the impact of new electrolyte additives and different state of charge ranges on the cycling performance and properties of lithium cells, while also learning the basics of density functional theory (DFT) and nuclear magnetic resonance (NMR). Before that, I earned my M.Sc. at Université de Moncton on the theoretical modeling of the Casimir effect, which rooted my curiosity in the fundamentals of physics.

After my Ph.D., I joined the Obrovac Research Group as a research scientist, where I studied anode materials for lithium-ion batteries and gained further expertise in XRD and SEM. Later, I worked with the Venkat Viswanathan Electrochemical Energy Group (then at CMU, now at the University of Michigan) and the Jay Whitacre Research Group at CMU as a post-doctoral fellow. There, I developed nuclear magnetic resonance, electrochemical, and computational methods for lithium-ion cell monitoring, mitigation, and prediction.

I am currently a research scientist at the Laboratory for Transport Phenomena in Energy Systems working with Shawn Litster to improve performance of fuel cells.

Selected Publications

  1. cathode.png
    Reproducible Determination of 3D Model and Porosity of Fuel Cell Cathode Layers from pFIB-SEM Data
    Roby Gauthier, N Wang, E Petry, and A Mehta
    In Preparation, 2025
  2. Predict_Redox.jpg
    A Guide to Predict Redox Potentials of New Electrolyte Components for Li-ion Batteries and Beyond
    Roby Gauthier, S Zhu, V Viswanathan, and JF Whitacre
    In Preparation, 2025
  3. casimir.png
    One-Dimensional Casimir Force at Short and Long Ranges Between Two Parallel Plates of Finite Thickness.
    Roby Gauthier, A Brahmi, C Gauthier, and N Beaudoin
    In Preparation, 2025
  4. low_salt.png
    Formation Accelerated Side-Reactions Test: A Technique to Study Anode Passivation during Lithium-Ion Cell Formation.
    Roby Gauthier, H Lin, H Chen, V Viswanathan, and JF Whitacre
    Chemistry of Materials, 2025
  5. NMR.png
    NMR and dQ/dV Analysis as Tools to Study Electrolyte Consumption During the Formation Cycle of Li-ion Pouch Cells
    Roby Gauthier, H Lin, V Viswanathan, and JF Whitacre
    Journal of Power Sources, 2025
  6. complex.png
    The Complex and Spatially Heterogeneous Nature of Degradation in Heavily Cycled Li-ion Cells
    Toby BondRoby Gauthier, Graham King, Reid Dressler, Jeffin James Abraham, and Jeff R Dahn
    Journal of The Electrochemical Society, 2024
  7. Ball_Milling.jpg
    The Amorphization of Crystalline Silicon by Ball Milling
    Roby Gauthier, B Scott, J Craig Bennett, Mina Salehabadi, Jun Wang, Tariq Sainuddin, and MN Obrovac
    Heliyon, 2024
  8. depth.jpg
    How do depth of discharge, C-rate and calendar age affect capacity retention, impedance growth, the electrodes, and the electrolyte in Li-ion cells?
    Roby Gauthier, Aidan Luscombe, Toby Bond, Michael Bauer, Michel Johnson, Jessie Harlow, AJ Louli, and Jeff R Dahn
    Journal of The Electrochemical Society, 2022
  9. jesac8a22f12_lr.jpg
    In-Situ Computed Tomography of Particle Microcracking and Electrode Damage in Cycled NMC622/Graphite Pouch Cell Batteries
    Toby BondRoby Gauthier, Sergey Gasilov, and JR Dahn
    Journal of The Electrochemical Society, 2022
  10. situ.jpg
    In Situ imaging of electrode thickness growth and electrolyte depletion in single-crystal vs polycrystalline LiNixMnyCozO2/graphite pouch cells using multi-scale computed tomography
    Toby BondRoby Gauthier, A Eldesoky, Jessie Harlow, and JR Dahn
    Journal of The Electrochemical Society, 2022