Study of a Li–air battery having an electrolyte solution formed by a mixture of an ether-based aprotic solvent and an ionic liquid

Cecchetto, Laura; Salomon, Mark; Scrosati, B.; Croce, F.

doi:10.1016/j.jpowsour.2012.04.038

Cited by 103 publications

(90 citation statements)

References 24 publications

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“…[98][99][100][101][102][103] Among these organic electrolytes, DMSO was thoroughly investigated by Peng et al [ 94 ] , who demonstrated that a solution of 0.1 M LiClO 4 in DMSO could give a very stable electrochemical performance using gold as the cathode substrate. The main discharge product with a DMSO-based electrolyte was Li 2 O 2 without any noticeable electrolyte decomposition after 100 cycles.…”

Section: Other Non-aqueous Electrolytesmentioning

confidence: 99%

“…Cell drying has to be prevented at all costs, given the risk of exposing lithium to a strongly oxidizing atmosphere. For this purpose, in addition to their favorable Li cycling performances, alternatives like solid polymer electrolytes (SPE), [ 17 ] glymes [ 77,197 ] and ionic liquids (ILs) [ 100 ] have been proposed. Glymes and ILs in particular can sport a good ionic conductivity, a wide electrochemical stability window, a negligible vapor pressure, low fl ammability, and good stability versus lithium metal cycling and versus the oxygen superoxide anion.…”

Section: Defi Ning a Laboratory Cell Prototypementioning

confidence: 99%

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The Lithium/Air Battery: Still an Emerging System or a Practical Reality?

et al. 2014

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gas. At the same time, the penetration of renewable energy sources has opened up the possibility of creating a CO 2 -neutral mobility system, where electric vehicles are powered by wind, hydro, and solar energy.Broad fi nancial efforts are being made at a governmental and industrial level to fund research into new areas of energy storage. The U.S. Department of Energy has allocated $20 million to energy storage research in 2012 and $15 million the following year, while the German government has committed itself to ¤200 million between 2011 and 2018; [ 1 ] similar schemes are also being promoted in Japan by the New Energy and Industrial Technology Development Organization (NEDO). The EU-backed "Horizon 2020" program aims at funding research into energy storage technologies, a fi eld where the European Union lags behind the U.S. and East Asia. [ 2 ] Lithium-ion technology has established itself as a type of reliable energy-storage chemistry over the past 20 years, fi rst being used in camcorders, then mobile phones, laptops, and more recently electric cars. However, as the size of the battery pack increases, so does the belief that the cost per kW h and its energy density are not suitable for practical vehicle applications. The Tesla Model S, which sports a 400 km driving range, does so with a whopping 85 kW h battery pack that alone has up to twice the price of a standard economy car. With a current cost higher than 400 $ kW h −1 , electric cars have so far only entered a niche, high-end market where users are willing to pay a premium. Resizing the battery pack, and so the total cost of an electric car, results in a limited driving range (typically 100-150 km) that automatically restricts the use for long-haul journeys and triggers the so-called "range anxiety" feeling. For these reasons, the need to develop energy-storage technologies that enable at least a 500 km driving range, while retaining the same battery pack volume at an affordable price, is of primary interest for governments and car manufacturers. A Brief History of Lithium/Air BatteriesOver the years, the scientifi c community has focused its interest on advanced lithium-ion and fuel cells with only incremental improvements being made. Lithium-ion technology in particular is predicted to reach an asymptotic limit in specifi c Lithium/air is a fascinating energy storage system. The effective exploitation of air as a battery electrode has been the long-time dream of the battery community. Air is, in principle, a no-cost material characterized by a very high specifi c capacity value. In the particular case of the lithium/air system, energy levels approaching that of gasoline have been postulated. It is then not surprising that, in the course of the last decade, great attention has been devoted to this battery by various top academic and industrial laboratories worldwide. This intense investigation, however, has soon highlighted a series of issues that prevent a rapid development of the Li/air electrochemical system. Although several breakthroughs have be...

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Section: Other Non-aqueous Electrolytesmentioning

confidence: 99%

Section: Defi Ning a Laboratory Cell Prototypementioning

confidence: 99%

The Lithium/Air Battery: Still an Emerging System or a Practical Reality?

et al. 2014

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“…[117][118][119][120][121][122] For instance, a novel Li-O 2 battery exploiting 1-butyl-1-methyl pyrrolidium bis(trifluoromethanesulfonyl)imide (PYR 14 TFSI)-LiTFSI as an ionic liquid-based electrolyte was employed by Hassoun and co-workers [117] They demonstrated that their Li-O 2 battery with the ionic liquid electrolyte had a very stable electrolyte-electrode interface and extremely reversible chargedischarge cycling performance. Moreover, the charge process has a very low overpotential, improving the energy efficiency to about 82% and thus overcoming one of the most vital problems preventing the practical application of Li-O 2 battery systems.…”

Section: Ionic Liquidsmentioning

confidence: 99%

“…In addition, the performance of ionic liquids could be synergistically improved by blending with aprotic solvents, such as PYR 14 TFSI/TEGDME electrolyte, [120] 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide ([BMP][NTf 2 ])/ DMSO electrolyte, [127] N-methoxyethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)-imide (PYR 1,2O1 TFSI)/TEGDME electrolyte, [128] …”

Section: Wwwadvsustainsyscommentioning

confidence: 99%

“…[130] For example, PYR 14 TFSI/TEGDME electrolyte demonstrated enhanced kinetics and reversibility for the oxygen reactions due to the significantly improved conductivity of the TEGDME electrolyte by blending with PYR 14 TFSI ionic liquid, resulting in a lower overpotential during the charge process compared with the solely TEGDME electrolyte. [120] [127] Wang and co-workers reported that the mixture of PYR 14 TFSI and DME could enable the single-electron mechanism, which reduces the recharge overpotential to as low as 0.19 V. Specifically, the presence of PYR 14 TFSI in the solution could stabilize the superoxide species, leading to single-electron mechanism featuring low recharge overpotential. [130] …”

Section: Wwwadvsustainsyscommentioning

confidence: 99%

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Review of Electrolytes in Nonaqueous Lithium–Oxygen Batteries

Guo

Luo

Chen

et al. 2018

Advanced Sustainable Systems

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Based on an inexhaustible and ubiquitous source of oxygen, the lithium-oxygen batteries are currently the subject of much scientific investigation because of their potential for extremely high energy density. The electrocatalytic materials for them have been extensively researched during the past decade. Even though they are a key component in the lithium-oxygen batteries, however, the study of electrolytes is still in its primary stage. Electrolytes have an important influence on the electrochemical performance of lithium-oxygen batteries, especially on their cycling stability and rate capacity. Therefore, it is important to select an ideal electrolyte with excellent stability against attack by reaction intermediates, along with excellent oxygen solubility and diffusivity. In this review, the physicochemical and electrochemical properties of organic electrolytes for lithium-oxygen batteries are discussed and compared. Furthermore, possible research directions are proposed for the development of an ideal electrolyte for enhanced electrochemical performance. Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsGuo, H., Luo, W., Chen, J., Chou, S., Liu, H. & Wang, J. (2018 Figure 1. Unlike the intercalation mechanism of lithium-ion batteries or sodium-ion batteries, the Li-O 2 battery systems employ a dissolution/ deposition reaction with an air electrode that uses oxygen as the cathode electrode during the electrochemical processes. Research on the Li-O 2 battery is complicated by the need for exposure the air cathode to O 2 atmosphere.Many advances have been achieved, which include advances on cathode materials, electrolytes, anode materials, and redox mediators. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Several excellent reviews have been published to summarize recent developments and our current understanding of Li-O 2 batteries, especially with respect to the cathode electrocatalytic materials. [25][26][27][28][29][30][31][32][33][34][35] These reviews have comprehensively discussed the relationship between the structure of electrocatalytic materials and the electrochemical performance of Li-O 2 batteries. There are, however, few reviews focused on the effects of different electrolytes on the electrochemical performance of the Li-O 2 batteries. [36][37][38] For the aqueous Li-O 2 batteries, LiOH is generated or oxidized at the cathode during discharge and charge processes because H 2 O and O 2 are involved in the reactions. In the case of the nonaqueous Li-O 2 batteries, there are two essential processes that determine their electrochemical performance: the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). During the ORR process, the Li 2 O 2 is precipitated as the final discharge product on the air cathode, while during the OER process, Li 2 O 2 is then decomposed and the O 2 is regenerated. Therefore, there are huge differences between aqueous and nonaqueous Li-O 2 batteries. Since the nonaqueous Li-O 2 batteries have dominated ...

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