Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent

Abstract Highly accurate ab initio molecular dynamics (MD) methods are the gold standard for studying molecular mechanisms in the condensed phase, however, they are too expensive to capture many key properties that converge slowly with respect to simulation length and time scales. Machine learning (...

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Main Authors: Ioan-Bogdan Magdău, Daniel J. Arismendi-Arrieta, Holly E. Smith, Clare P. Grey, Kersti Hermansson, Gábor Csányi
Format: Article
Language:English
Published: Nature Portfolio 2023-08-01
Series:npj Computational Materials
Online Access:https://doi.org/10.1038/s41524-023-01100-w
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author Ioan-Bogdan Magdău
Daniel J. Arismendi-Arrieta
Holly E. Smith
Clare P. Grey
Kersti Hermansson
Gábor Csányi
author_facet Ioan-Bogdan Magdău
Daniel J. Arismendi-Arrieta
Holly E. Smith
Clare P. Grey
Kersti Hermansson
Gábor Csányi
author_sort Ioan-Bogdan Magdău
collection DOAJ
description Abstract Highly accurate ab initio molecular dynamics (MD) methods are the gold standard for studying molecular mechanisms in the condensed phase, however, they are too expensive to capture many key properties that converge slowly with respect to simulation length and time scales. Machine learning (ML) approaches which reach the accuracy of ab initio simulation, and which are, at the same time, sufficiently affordable hold the key to bridging this gap. In this work we present a robust ML potential for the EC:EMC binary solvent, a key component of liquid electrolytes in rechargeable Li-ion batteries. We identify the necessary ingredients needed to successfully model this liquid mixture of organic molecules. In particular, we address the challenge posed by the separation of scale between intra- and inter-molecular interactions, which is a general issue in all condensed phase molecular systems.
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spelling doaj.art-83f0340a9744414abf598a0e078929832023-11-26T13:47:02ZengNature Portfolionpj Computational Materials2057-39602023-08-019111510.1038/s41524-023-01100-wMachine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solventIoan-Bogdan Magdău0Daniel J. Arismendi-Arrieta1Holly E. Smith2Clare P. Grey3Kersti Hermansson4Gábor Csányi5Engineering Laboratory, University of CambridgeDepartment of Chemistry–Ångström Laboratory, Uppsala UniversityYusuf Hamid Department of Chemistry, University of CambridgeYusuf Hamid Department of Chemistry, University of CambridgeDepartment of Chemistry–Ångström Laboratory, Uppsala UniversityEngineering Laboratory, University of CambridgeAbstract Highly accurate ab initio molecular dynamics (MD) methods are the gold standard for studying molecular mechanisms in the condensed phase, however, they are too expensive to capture many key properties that converge slowly with respect to simulation length and time scales. Machine learning (ML) approaches which reach the accuracy of ab initio simulation, and which are, at the same time, sufficiently affordable hold the key to bridging this gap. In this work we present a robust ML potential for the EC:EMC binary solvent, a key component of liquid electrolytes in rechargeable Li-ion batteries. We identify the necessary ingredients needed to successfully model this liquid mixture of organic molecules. In particular, we address the challenge posed by the separation of scale between intra- and inter-molecular interactions, which is a general issue in all condensed phase molecular systems.https://doi.org/10.1038/s41524-023-01100-w
spellingShingle Ioan-Bogdan Magdău
Daniel J. Arismendi-Arrieta
Holly E. Smith
Clare P. Grey
Kersti Hermansson
Gábor Csányi
Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
npj Computational Materials
title Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
title_full Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
title_fullStr Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
title_full_unstemmed Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
title_short Machine learning force fields for molecular liquids: Ethylene Carbonate/Ethyl Methyl Carbonate binary solvent
title_sort machine learning force fields for molecular liquids ethylene carbonate ethyl methyl carbonate binary solvent
url https://doi.org/10.1038/s41524-023-01100-w
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