jeremy dawkins
Ph.d. Student |
Research ProjectImaging the solution phase concentration in Li-ion battery positive electrodes with X-ray fluorescence
A limiting factor in LIBs is the rate at which they can be (dis)charged which can be extensively hindered by the formation of a concentration gradient of Li+ within the positive and negative electrodes. Although the models that exist can predict what these gradients should be within the electrodes, there has, as of yet, been no experimental data representing the concentration gradient formation within the electrode pores. Using X-ray fluorescence (XRF) in conjunction with a synchrotron light source allows the spatially resolved observation of the Li+ concentration profile. This work can validate the predictive power of established P2D models in order to improve their accuracy in addition to serving as a screening technique for new composite positive electrodes. 
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Education
Ph.D., Chemistry, McGill University, Canada, 2017 – Present
B.Sc, Chemistry, University of Ottawa, Canada, April.2017
B.Sc, Chemistry, University of Ottawa, Canada, April.2017
publications
4) Dawkins, J. I. G.; Ghavidel, M. Z.; Chhin, D.; Beaulieu, I.; Hossain, M. S.; Feng, R.; Mauzeroll, J.; Schougaard, S. B. Operando Tracking of Solution-Phase Concentration Profiles in Li-Ion Battery Positive Electrodes Using X-Ray Fluorescence . Anal. Chem. 2020.
3) Hossain, S.; Stephens, L. I.; Hatami, M.; Ghavidel, M.; Chhin, D.; Dawkins, J. I. G.; Savignac, L.; Mauzeroll, J.; Schougaard, S. B. Effective Mass Transport Properties in Lithium Battery Electrodes. ACS Appl. Energy Mater. 2019, 3, 440–446.
2) Payne, N. A.; Dawkins, J. I. G.; Schougaard, S. B.; Mauzeroll, J. Effect of Substrate Permeability on Scanning Ion Conductance Microscopy: Uncertainty in Tip-Substrate Separation and Determination of Ionic Conductivity. Anal. Chem. 2019, 91 (24), 15718–15725.
1) Rao, G. K.; Jamshidi, M. P.; Dawkins, J. I. G.; Pell, W.; Korobkov, I.; Richeson, D. Electrocatalytic generation of H2 from neutral water in acetonitrile using manganese polypyridyl complexes with ligand assistance. Dalton Trans. 2017, 46, 6518-6522.
3) Hossain, S.; Stephens, L. I.; Hatami, M.; Ghavidel, M.; Chhin, D.; Dawkins, J. I. G.; Savignac, L.; Mauzeroll, J.; Schougaard, S. B. Effective Mass Transport Properties in Lithium Battery Electrodes. ACS Appl. Energy Mater. 2019, 3, 440–446.
2) Payne, N. A.; Dawkins, J. I. G.; Schougaard, S. B.; Mauzeroll, J. Effect of Substrate Permeability on Scanning Ion Conductance Microscopy: Uncertainty in Tip-Substrate Separation and Determination of Ionic Conductivity. Anal. Chem. 2019, 91 (24), 15718–15725.
1) Rao, G. K.; Jamshidi, M. P.; Dawkins, J. I. G.; Pell, W.; Korobkov, I.; Richeson, D. Electrocatalytic generation of H2 from neutral water in acetonitrile using manganese polypyridyl complexes with ligand assistance. Dalton Trans. 2017, 46, 6518-6522.
Presentations
Oral
1) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Exploring the synergistic effect of dual-layer positive electrodes in lithium-ion batteries, 102nd Canadian Chemistry Conference and Exhibition, Québec, June 3
Poster
1) Dawkins, I. G. J., Savignac, L., Mauzeroll, J. Schougaard, S. (2018), Studying the effects of CO2 on the Diffusion of Li+ in Li-ion Batteries, 2e conférence anuelle du CQMF, Montréal, May 3
2) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Studying lithium ion battery kinetics using dual-layer positive electrodes, 8th ECS Montreal Student Symposium, Montréal, June 15
3) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Exploring the “synergistic” effect of dual-layer positive electrodes, ECS Canadian Section, Montréal, November 10
4) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2020) Optimizing blended positive electrodes in lithium-ion batteries, QCAM Student Symposium, Montréal, November 18
1) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Exploring the synergistic effect of dual-layer positive electrodes in lithium-ion batteries, 102nd Canadian Chemistry Conference and Exhibition, Québec, June 3
Poster
1) Dawkins, I. G. J., Savignac, L., Mauzeroll, J. Schougaard, S. (2018), Studying the effects of CO2 on the Diffusion of Li+ in Li-ion Batteries, 2e conférence anuelle du CQMF, Montréal, May 3
2) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Studying lithium ion battery kinetics using dual-layer positive electrodes, 8th ECS Montreal Student Symposium, Montréal, June 15
3) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2018) Exploring the “synergistic” effect of dual-layer positive electrodes, ECS Canadian Section, Montréal, November 10
4) Dawkins, I. G. J., Pan, Y., Mauzeroll, J. Schougaard, S. (2020) Optimizing blended positive electrodes in lithium-ion batteries, QCAM Student Symposium, Montréal, November 18
Honors/awards
AQPER "3 minutes pour changer le monde", 1st place, 2020
Sterry Hunt Award, McGill University, 2020
CSC-Montreal 2001 Travel Award, McGill University, 2020
FRQNT B2X, McGill University, 2019
NSERC CGS-M, McGill University, 2018-2019
Ontario Baden-Württemberg Summer Exchange Grant, Universität Ulm, 2016
Globalinks Research Internship Award, Université Pierre et Marie Curie (Paris VI), 2015
Sterry Hunt Award, McGill University, 2020
CSC-Montreal 2001 Travel Award, McGill University, 2020
FRQNT B2X, McGill University, 2019
NSERC CGS-M, McGill University, 2018-2019
Ontario Baden-Württemberg Summer Exchange Grant, Universität Ulm, 2016
Globalinks Research Internship Award, Université Pierre et Marie Curie (Paris VI), 2015