Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt

In this study, the use of a <i>closo</i>-borate salt as an electrolyte for lithium-ion batteries (LIB) was evaluated in a series of solvent systems. The lithium <i>closo</i>-borate salts are a unique class of halogen-free salts that have the potential to offer some advantages...

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Main Authors: Matthew Green, Hovnan Simonyan, Katty Kaydanik, Joseph A. Teprovich
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/5/2273
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author Matthew Green
Hovnan Simonyan
Katty Kaydanik
Joseph A. Teprovich
author_facet Matthew Green
Hovnan Simonyan
Katty Kaydanik
Joseph A. Teprovich
author_sort Matthew Green
collection DOAJ
description In this study, the use of a <i>closo</i>-borate salt as an electrolyte for lithium-ion batteries (LIB) was evaluated in a series of solvent systems. The lithium <i>closo</i>-borate salts are a unique class of halogen-free salts that have the potential to offer some advantages over the halogenated salts currently employed in commercially available LIB due to their chemical and thermal stability. To evaluate this concept, three different solvent systems were prepared with a lithium <i>closo</i>-borate salt to make a liquid electrolyte (propylene carbonate, ethylene carbonate:dimethyl carbonate, and 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide). The <i>closo</i>-borate containing electrolytes were then compared by utilizing them with three different electroactive electrode materials. Their cycle stability and performance at various charge/discharge rates was also investigated. Based on the symmetrical cell and galvanostaic cycling studies it was determined that the carbonate based liquid electrolytes performed better than the ionic liquid electrolyte. This work demonstrates that halogen free <i>closo</i>-borate salts are interesting candidates and worthy of further investigation as lithium salts for LIB.
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spelling doaj.art-4484bd6a6e9845e29d40f9a3cae5cfa52023-11-23T22:38:12ZengMDPI AGApplied Sciences2076-34172022-02-01125227310.3390/app12052273Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte SaltMatthew Green0Hovnan Simonyan1Katty Kaydanik2Joseph A. Teprovich3Department of Chemistry & Biochemistry, California State University Northridge, Northridge, CA 91330, USADepartment of Chemistry & Biochemistry, California State University Northridge, Northridge, CA 91330, USADepartment of Chemistry & Biochemistry, California State University Northridge, Northridge, CA 91330, USADepartment of Chemistry & Biochemistry, California State University Northridge, Northridge, CA 91330, USAIn this study, the use of a <i>closo</i>-borate salt as an electrolyte for lithium-ion batteries (LIB) was evaluated in a series of solvent systems. The lithium <i>closo</i>-borate salts are a unique class of halogen-free salts that have the potential to offer some advantages over the halogenated salts currently employed in commercially available LIB due to their chemical and thermal stability. To evaluate this concept, three different solvent systems were prepared with a lithium <i>closo</i>-borate salt to make a liquid electrolyte (propylene carbonate, ethylene carbonate:dimethyl carbonate, and 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide). The <i>closo</i>-borate containing electrolytes were then compared by utilizing them with three different electroactive electrode materials. Their cycle stability and performance at various charge/discharge rates was also investigated. Based on the symmetrical cell and galvanostaic cycling studies it was determined that the carbonate based liquid electrolytes performed better than the ionic liquid electrolyte. This work demonstrates that halogen free <i>closo</i>-borate salts are interesting candidates and worthy of further investigation as lithium salts for LIB.https://www.mdpi.com/2076-3417/12/5/2273<i>closo</i>-borateliquid electrolytelithiumFTIRgalvanostatic cyclinglithium-ion battery
spellingShingle Matthew Green
Hovnan Simonyan
Katty Kaydanik
Joseph A. Teprovich
Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
Applied Sciences
<i>closo</i>-borate
liquid electrolyte
lithium
FTIR
galvanostatic cycling
lithium-ion battery
title Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
title_full Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
title_fullStr Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
title_full_unstemmed Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
title_short Influence of Solvent System on the Electrochemical Properties of a <i>closo</i>-Borate Electrolyte Salt
title_sort influence of solvent system on the electrochemical properties of a i closo i borate electrolyte salt
topic <i>closo</i>-borate
liquid electrolyte
lithium
FTIR
galvanostatic cycling
lithium-ion battery
url https://www.mdpi.com/2076-3417/12/5/2273
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AT kattykaydanik influenceofsolventsystemontheelectrochemicalpropertiesofaiclosoiborateelectrolytesalt
AT josephateprovich influenceofsolventsystemontheelectrochemicalpropertiesofaiclosoiborateelectrolytesalt