KFU. Card publication. Ion Transport and Electrochemical Properties of Fluorine-Free Lithium-Ion Battery Electrolytes Derived from Biomass

KAZAN
FEDERAL UNIVERSITY

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ION TRANSPORT AND ELECTROCHEMICAL PROPERTIES OF FLUORINE-FREE LITHIUM-ION BATTERY ELECTROLYTES DERIVED FROM BIOMASS

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Gnezdilov Oleg Ivanovich, author

Bibliographic description in the original language

Khan Inayat Ali, Ion Transport and Electrochemical Properties of Fluorine-Free Lithium-Ion Battery Electrolytes Derived from Biomass / Inayat Ali Khan, O. I. Gnezdilov, A. Filippov, and Faiz Ullah Shah// ACS Sustainable Chem. Eng. - 2021. -N. 9. - P. 7769−7780.

Annotation

Unlike conventional electrolytes, ionic liquid (IL)-based electrolytes o ﬀ er higher thermal stabil ity, acceptab le ionic c onductivit y, and a higher electrochemical stability window (ESW), which are indispensable for the proper functioning of Li-ion batteries. In this study, ﬂ uorine-free electrolytes are prepared by mixing the lithium furan-2-carboxylate [Li(FuA)] salt with the tetra(n -butyl)-phosphonium furan-2-carboxylate [(P4444)(FuA)] IL in diﬀ erent molar ratios. The anion of these electrolytes is produced from biomass and agricultural waste on a large scale and, therefore, this study is a step ahead toward the development of renewable electrolytes for batteries. The electrolytes are found to have T onset higher than 568 K and acceptable ionic conductivities in a wide temperature range. The pulsed ﬁeld gradient nuclear magnetic resonance (PFG-NMR) analysis has con ﬁrmed that the (FuA)− anion di ﬀ uses faster than the (P 4444)+ cation in the neat (P 4444)(FuA) IL; however, the anion diﬀ usion becomes slower than cation di ﬀusion by doping Li salt. The Li + ion interacts strongly with the carboxylate functionality in the (FuA)− anion and diﬀ uses slower than other ions over the whole studied temperature range. The interaction of the Li+ ion with the carboxylate group is also conﬁ rmed by 7 Li NMR and Fourier transform infrared (FTIR) spectroscopy. The transference number of the Li+ ion is increased with increasing Li salt concentration. Linear sweep voltammetry (LSV) suggests lithium underpotential deposition and bulk reduction at temperatures above 313 K.

Keywords

renewable electrolytes, furan-2-carboxylate, ionic conductivity, nuclear magnetic resonance, underpotential deposition

The name of the journal

ACS Sustainable Chemistry and Engineering

URL

https://pubs.acs.org/10.1021/acssuschemeng.1c00939

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=258155&p_lang=2

Resource files

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Kh7769.pdf	8,55	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Gnezdilov Oleg Ivanovich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Khan Inayat Ali, Ion Transport and Electrochemical Properties of Fluorine-Free Lithium-Ion Battery Electrolytes Derived from Biomass / Inayat Ali Khan, O. I. Gnezdilov, A. Filippov, and Faiz Ullah Shah// ACS Sustainable Chem. Eng. - 2021. -N. 9. - P. 7769−7780.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=258155&p_lang=2	ru_RU
dc.description.abstract	ACS Sustainable Chemistry and Engineering	ru_RU
dc.description.abstract	Unlike conventional electrolytes, ionic liquid (IL)-based electrolytes o ﬀ er higher thermal stabil ity, acceptab le ionic c onductivit y, and a higher electrochemical stability window (ESW), which are indispensable for the proper functioning of Li-ion batteries. In this study, ﬂ uorine-free electrolytes are prepared by mixing the lithium furan-2-carboxylate [Li(FuA)] salt with the tetra(n -butyl)-phosphonium furan-2-carboxylate [(P4444)(FuA)] IL in diﬀ erent molar ratios. The anion of these electrolytes is produced from biomass and agricultural waste on a large scale and, therefore, this study is a step ahead toward the development of renewable electrolytes for batteries. The electrolytes are found to have T onset higher than 568 K and acceptable ionic conductivities in a wide temperature range. The pulsed ﬁeld gradient nuclear magnetic resonance (PFG-NMR) analysis has con ﬁrmed that the (FuA)− anion di ﬀ uses faster than the (P 4444)+ cation in the neat (P 4444)(FuA) IL; however, the anion diﬀ usion becomes slower than cation di ﬀusion by doping Li salt. The Li + ion interacts strongly with the carboxylate functionality in the (FuA)− anion and diﬀ uses slower than other ions over the whole studied temperature range. The interaction of the Li+ ion with the carboxylate group is also conﬁ rmed by 7 Li NMR and Fourier transform infrared (FTIR) spectroscopy. The transference number of the Li+ ion is increased with increasing Li salt concentration. Linear sweep voltammetry (LSV) suggests lithium underpotential deposition and bulk reduction at temperatures above 313 K.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	renewable electrolytes	ru_RU
dc.subject	furan-2-carboxylate	ru_RU
dc.subject	ionic conductivity	ru_RU
dc.subject	nuclear magnetic resonance	ru_RU
dc.subject	underpotential deposition	ru_RU
dc.title	Ion Transport and Electrochemical Properties of Fluorine-Free Lithium-Ion Battery Electrolytes Derived from Biomass	ru_RU
dc.type	Articles in international journals and collections	ru_RU