Ionic liquid electrolytes for lithium batteries: Synthesis, electrochemical, and cytotoxicity studies

Madria, Ninu; Arunkumar, T.; Nair, Nanditha G.; Vadapalli, Avinash Raju; Huang, Yue-Wern; Jones, Simon C.; Reddy, V. Prakash

doi:10.1016/j.jpowsour.2013.02.002

Cited by 68 publications

(47 citation statements)

References 38 publications

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“…Compared to non-aqueous solvents, they present some advantages as electrolyte components [52]. They have a wide electrochemical stability window enhanced by a high oxidation potential, and are usually less or nonflammable and non-volatile which makes them attractive from the safety perspective.…”

Section: Ionic Liquidsmentioning

confidence: 99%

Electrolyte materials - Issues and challenges

Balbuena

2014

AIP Conference Proceedings

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Electrolytes are vital components of an electrochemical energy storage device. They are usually composed of a solvent or mixture of solvents and a salt or a mixture of salts which provide the appropriate environment for ionic conduction. One of the main issues associated with the selection of a proper electrolyte is that its electronic properties have to be such that allow a wide electrochemical windowdefined as the voltage range in which the electrolyte is not oxidized or reducedsuitable to the battery operating voltage. In addition, electrolytes must have high ionic conductivity and negligible electronic conductivity, be chemically stable with respect to the other battery components, have low flammability, and low cost. Weak stability of the electrolyte against oxidation or reduction leads to the formation of a solid-electrolyte interphase (SEI) layer at the surface of the cathode and anode respectively. Depending on the materials of the electrolyte and those of the electrode, the SEI layer may be composed by combinations of organic and inorganic species, and it may exert a passivating role. In this paper we discuss the current status of knowledge about electrolyte materials, including non-aqueous liquids, ionic liquids, solid ceramic and polymer electrolytes. We also review the basic knowledge about the SEI layer formation, and challenges for a rational design of stable electrolytes.

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Section: Ionic Liquidsmentioning

confidence: 99%

Electrolyte materials - Issues and challenges

Balbuena

2014

AIP Conference Proceedings

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“…The possibility of employing IL as the electrolyte for the LIBs is mainly dependent on the solubility of the Li salts, which is driven by the structure of the molten salt. It is observed that solubility of Li salt is high in TFSI − and BF 4 − ions, and in particular, TFSI − anion-based ionic liquids show higher thermal and electrochemical stability than the other counter anions of the IL [9]. Even though the ILs possess high ionic conductivity and wide electrochemical window, it is unable to produce stable and efficient solid electrolyte interface (SEI) [10,11].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric tetraalkyl ammonium cation-based ionic liquid as an electrolyte for lithium-ion battery applications

Selvamani

Suryanarayanan

Velayutham

et al. 2016

J Solid State Electrochem

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Performance of N-butyl N,N,N-triethylammonium bis(trifluoromethanesulfonyl)-imide (N 2224 TFSI) as a room temperature ionic liquid (RTIL) containing ethylene carbonate (EC)/diethylcarbonate (DEC) and lithium salt has been investigated as an electrolyte for lithium-ion battery. The electrolyte is highly resistant to fire during direct exposure to the flame, indicating its non-flammable nature. The overall electrochemical window of the ionic liquid (IL) electrolyte is up to 5.7 V vs. Li metal without any solvent decomposition, as confirmed by linear sweep voltammetry (LSV). The electrolyte has low viscosity (32.9 cPs) and high conductivity (5.23 mS cm −1 ) with effective SEI film-forming ability. The performance of the IL electrolyte has been tested with lithium-ion half cells using LiFePO 4 and mesocarbon microbead (MCMB) electrodes, showing good galvanostatic cycling with high capacity retention of about 84 and 90 %, respectively.

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“…Therefore, the electronic properties of SWCNT remained unmodified [38]. Madria et al [39] have shown that 1-methyl-3-alkoxyalkyl and 1-methyl-3-fluoroalkyl imidazolium are relatively nontoxic to human health. Riduan et al [40] investigated the use of imidazolium salts in several areas of bio-applications, including antitumor, antimicrobial, antioxidant and bioengineering.…”

Section: Introductionmentioning

confidence: 99%