About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Applications and Uncertainty Quantification at Atomistics and Mesoscales
|
Presentation Title |
Inverse Design of Energy Storage Materials via Active Learning |
Author(s) |
Hieu Anh Doan, Garvit Agarwal, Rajeev S Assary |
On-Site Speaker (Planned) |
Hieu Anh Doan |
Abstract Scope |
Albeit a promising technology for stationary energy storage applications, current non-aqueous redox flow batteries (NRFBs) possess limited calendar lives. Mechanisms of calendar aging mainly involve the accumulation of deactivated redoxmers, the charge-carrying materials in NRFBs, and subsequent formation of passivating films on positive and negative electrodes. Therefore, improving the stability of active redoxmers or the recyclability of their deactivated counterparts is essential to achieve better performance in NRFBs. We envision a redoxmer design in which redox-active cores are connected to a molecular scaffold via a cleavable tether. Among the selection criteria associated with a molecular scaffold are suitable redox potential and favorable bond cleavage reaction energy, both of which can be computed using quantum mechanical (QM) simulations. Here, by leveraging a QM-guided multi-objective Bayesian optimization scheme, we demonstrate the capability of identifying desired energy storage materials from a vast chemical space. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Energy Conversion and Storage, Machine Learning |