Publication:
Selection of ionic liquid electrolytes for high-performing lithium-sulfur batteries: an experiment-guided high-throughput machine learning analysis

dc.contributor.coauthorKılıç, Ayşegül
dc.contributor.coauthorAbdelaty, Omar
dc.contributor.coauthorYıldırım, Ramazan
dc.contributor.coauthorEroğlu, Damla
dc.contributor.departmentDepartment of Chemical and Biological Engineering
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.departmentKUTEM (Koç University Tüpraş Energy Center)
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorUzun, Alper
dc.contributor.kuauthorZeeshan, Muhammad
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-12-29T09:41:28Z
dc.date.issued2024
dc.description.abstractThe polysulfide (PS) shuttle mechanism (PSM) is one of the most significant challenges of lithium-sulfur (Li-S) batteries in achieving high capacity and cyclability. One way to minimize the shuttle effect is to limit the PS solubilities in the battery electrolyte. Ionic liquids (IL) are particularly suited as electrolyte solvents because of their tunable physical and chemical properties. In this work, thousands of ILs are screened to narrow down potentially viable candidates to be used as electrolytes in Li-S batteries. To that end, the COnductor-like Screening Model for Realistic Solvents (COSMO-RS) calculations are performed over more than 36,000 ILs. An extensive database containing PS solubilities and other relevant properties is constructed at 25 °C. First, the effectiveness of the COSMO-RS calculations is experimentally tested with six different ILs having a wide range of solubility and viscosity values; a strong correlation between the PS solubility and battery performance is obtained. After specifying the target limits for promising ILs using the experimental battery performance data, machine learning (ML) tools are used to predict and identify the relationship between IL properties and PS solubilities and structural and molecular descriptors of ILs. The extreme gradient boosting (XGBoost) method successfully predicts the solubility and property values. Association rule mining (ARM) and the feature importance analysis show that anion descriptors are more dominant, whereas cations have less impact on the solubilities and properties of ILs. Finally, the imidazolium and pyridinium ILs with bis_imide and borate anion groups are identified as the most promising ones.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.openaccessN/A
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuTÜBİTAK
dc.description.sponsorshipN/A
dc.description.volume490
dc.identifier.doi10.1016/j.cej.2024.151562
dc.identifier.eissn1873-3212
dc.identifier.issn1385-8947
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85191344762
dc.identifier.urihttps://doi.org/10.1016/j.cej.2024.151562
dc.identifier.urihttps://hdl.handle.net/20.500.14288/23659
dc.identifier.wos1286017200001
dc.keywordsElectrolyte viscosity
dc.keywordsIonic liquid
dc.keywordsIonic liquid descriptor
dc.keywordsLi-S battery
dc.keywordsPolysulfide solubility
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.grantno221M542
dc.relation.ispartofChemical Engineering Journal
dc.subjectChemical and Biological Engineering
dc.titleSelection of ionic liquid electrolytes for high-performing lithium-sulfur batteries: an experiment-guided high-throughput machine learning analysis
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorZeeshan, Muhammad
local.contributor.kuauthorUzun, Alper
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Engineering
local.publication.orgunit1Research Center
local.publication.orgunit2Department of Chemical and Biological Engineering
local.publication.orgunit2KUTEM (Koç University Tüpraş Energy Center)
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2Graduate School of Sciences and Engineering
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