Project Contact: Matthieu Dubarry
Sponsors: Office of Naval Research (APRISES); Trevi Systems
Collaborators: University of Montreal, University of Nantes, Sandia National Laboratories, Navy Research Laboratory
Advanced energy conversion devices typically rely on composites electrodes made of several materials interacting with one another. Understanding their individual and combined impact on degradation is essential in the pursuit of the best possible performance and safety. In this project we use our expertise in Li-ion batterie diagnosis as well as designs of Experiments (DoE) to optimize formulations and to investigate the importance of process parameters while minimizing resources.
Defining new approaches to minimize experiments and time to reach an optimal battery electrode composition is highly beneficial to the field. To this end, we use DoE approach and a mixture design was applied for the first time in open literature to electrode formulation. Consequently, the relationship between electrode composition, microstructure and electrochemical performance was uncovered.
In this project, the DoE approach is applied to two types of electrodes: high power electrodes for lithium batteries (ONR funded, in collaboration with the University of Montreal) and sodium intercalation electrodes (DOI funded, in collaboration with Trevi Systems) to investigate the feasibility of desalination batteries.
In addition, our expertise in battery degradation was used to help researchers at the Navy Research Laboratory to characterize the impact of local temperature gradients and by researchers at Sandia National Laboratories to investigate the impact of overcharge and depth of discharge.
Illustration of the complex architecture of Li-ion battery electrodes and associated optimization using a design of experiment.
- 2021, R. Carter, T.A. Kingston, R.W. Atkinson III, M. Parmananda, M. Dubarry, C. Fear, P.P. Mukherjee, C.T. Love, Directionality of thermal gradients in lithium-ion batteries dictates diverging degradation modes, Cell Reports Physical Science, Vol. 2, Issue 2, Paper 100351. (Open Access: PDF)
- 2020, O. Rynne, M. Dubarry, C. Molson, E. Nicolas, D. Lepage, A. Prébé, D. Aymé-Perrot, D. Rochefort, M. Dollé, Exploiting Materials to Their Full Potential, a Li-Ion Battery Electrode Formulation Optimization Study, ACS Applied Energy Materials, Vol. 3, Issue 3, pp. 2935-2948.
- 2019, O. Rynne, M. Dubarry, C. Molson, D. Lepage, A. Prébé, D. Aymé-Perrot, D. Rochefort, M. Dollé, Designs of Experiments for Beginners—A Quick Start Guide for Application to Electrode Formulation, Batteries, Vol. 5, Issue 4, Paper 72. (Open Access: PDF)