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Electrochemical performance and interfacial properties of Li-metal in lithium bis(fluorosulfonyl)imide based electrolytes
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.ORCID iD: 0000-0003-2538-8104
Toyota Motor Europe, Zaventem, Belgium.
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, article id 15925Article in journal (Refereed) Published
Abstract [en]

Successful usage of lithium metal as the negative electrode or anode in rechargeable batteries can be an important step to increase the energy density of lithium batteries. Performance of lithium metal in a relatively promising electrolyte solution composed of lithium bis( uorosulfonyl)imide (LiN(SO2F)2; LiFSI) salt dissolved in 1,2-dimethoxyethane (DME) is here studied. The in uence of the concentration of the electrolyte salt −1 M or 4 M LiFSI- is investigated by varying important electrochemical parameters such as applied current density and plating capacity. X-ray photoelectron spectroscopy analysis as a surface sensitive technique is here used to analyze that how the composition of the solid electrolyte interphase varies with the salt concentration and with the number of cycles.

Place, publisher, year, edition, pages
2017. Vol. 7, article id 15925
Keywords [en]
batteries
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-334672DOI: 10.1038/s41598-017-16268-7ISI: 000415983600013PubMedID: 29162891OAI: oai:DiVA.org:uu-334672DiVA, id: diva2:1160290
Funder
StandUpSwedish Energy Agency
Note

Author Contributions: R.Y. and F.B. equally contributed in planning the study and designing the experiments. R.Y. performed the experiments, collected the data, and wrote the manuscript. F.B. contributed in writing by commenting on the text. All authors discussed the results on the manuscript.

Available from: 2017-11-25 Created: 2017-11-25 Last updated: 2018-07-24Bibliographically approved

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