Solvation of Lithium Ions in Mixed Organic Electrolyte Solutions by Electrospray Ionization Mass Spectroscopy

Matsuda, Yoshiharu; Fukushima, Tsuyoshi; Hashimoto, Hiroyuki; Arakawa, Ryuichi

doi:10.1149/1.1489687

Cited by 69 publications

(68 citation statements)

References 21 publications

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“…Thus, both solvated species reach equilibrium in the solution. In the ESI-MS study, it was reported that Li + (PC) 3 was observed [12][13][14]. However, there is no contradiction between the ESI-MS study and the present work.…”

Section: Single Reflection Atr Spectracontrasting

confidence: 57%

“…On the other hand, it is well known that when lithium ions are solvated using nonaqueous organic solvents [6][7][8][9][10][11][12][13][14], the solvents affect the reduction potential and the subsequent decomposition reactions. When considering rechargeable lithium ion batteries, it is important to understand the behavior of species solvated to lithium ions during the charging and discharging phases.…”

Section: Introductionmentioning

confidence: 99%

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In situ FTIR spectra at the Cu electrode/propylene carbonate solution interface

Ikezawa¹,

Ariga²

2007

Electrochimica Acta

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Section: Single Reflection Atr Spectracontrasting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

In situ FTIR spectra at the Cu electrode/propylene carbonate solution interface

Ikezawa¹,

Ariga²

2007

Electrochimica Acta

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“…In each of these systems, the overwhelmingly abundant species detected were the solvation complexes of lithium with the cyclic solvents (EC, PC, or γBL), with coordination numbers between 2 and 3. 173 This selective solvation of lithium ions by highsolvent molecules would exclude the solvents of low-η from the solvation sheath and leave the latter as free, noncoordinating solvent molecules. As a result, the media in which the solvated ions migrate are mainly composed of these free solvent molecules, which impart their low-η to benefit the movement of the solvated ions.…”

Section: Ion Transport Propertiesmentioning

confidence: 99%

Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries

2004

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Contents 1. Introduction and Scope 4303 1.1. Fundamentals of Battery Electrolytes 4303 1.2. The Attraction of "Lithium" and Its Challenge 4304 1.3. From "Lithium" to "Lithium Ion" 4305 1.4. Scope of This Review 4306 2. Electrolyte Components: History and State of the Art 4306 2.1. Solvents 4307 2.1.1. Propylene Carbonate (PC) 4308 2.1.2. Ethers 4308 2.1.3. Ethylene Carbonate (EC) 4309 2.1.4. Linear Dialkyl Carbonates 4310 2.2. Lithium Salts 4310 2.2.1. Lithium Perchlorate (LiClO 4 ) 4311 2.2.2. Lithium Hexafluoroarsenate (LiAsF 6 ) 4312 2.2.3. Lithium Tetrafluoroborate (LiBF 4 ) 4312 2.2.4. Lithium Trifluoromethanesulfonate (LiTf) 4312 2.2.5. Lithium Bis(trifluoromethanesulfonyl)imide (LiIm) and Its Derivatives 4313

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“…[30][31][32] To overcome these disadvantages, researchers have introduced the concept of hybrid electrolytes, where an organic solvent is added to the ionic liquid electrolytes so as to increase the room temperature ionic conductivity as well as to get better interfacial behaviour. 15,20,[33][34][35][36] In this work, we have tested hybrid electrolytes composed of 40 wt% ionic liquid in a conventional electrolyte system to understand the role of the ionic liquid in the passivation mechanism of aluminium foil current collector. The proportion of 40 wt% ionic liquid was chosen as a compromise between improved safety and low viscosity for these electrolytes at room temperatures.…”

Section: Introductionmentioning

confidence: 99%

Passivation behaviour of aluminium current collector in ionic liquid alkyl carbonate (hybrid) electrolytes

et al. 2018

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The compatibility of current collectors with the electrolyte plays a major role in the overall performance of lithium batteries, critical to obtain high storage capacity as well as excellent capacity retention. In lithium-ion batteries, in particular with cathodes that operate at high voltage such as lithium nickel cobalt manganese oxide, the cathodic current collector is aluminium and it is subjected to high oxidation potentials (>4 V vs. Li/Li + ). As a result, the composition of the electrolyte needs to be carefully designed in order to stabilise the battery performance as well as to protect the current collectors against corrosion. This study examines the role of a hybrid electrolyte composed of an ionic liquid (N-methyl-N-propyl pyrrolidinium bis(trifluoromethanesulfonyl)imide or Nmethyl-N-propyl pyrrolidinium bis(fluorosulfonyl)imide) and a conventional electrolyte mixture (LiPF 6 salt and alkyl carbonate solvents) with correlation to their electrochemical behaviour and corrosion inhibition efficiency. The hybrid electrolyte was tested against battery grade aluminium current collectors electrochemically in a three-electrode cell configuration and the treated aluminium surface was characterised by SEM/EDXS, optical profilometry, FTIR, and XPS analysis. Based on the experimental results, the hybrid electrolytes allow an effective and improved passivation of aluminium and lower the extent of aluminium dissolution in comparison with the conventional lithium battery electrolytes and the neat ionic liquids at high anodic potentials (4.7 V vs. Li/Li + ). The mechanism of passivation behaviour is also further investigated. These observations provide a potential direction for developing improved hybrid electrolytes, based on ionic liquids, for higher energy density devices.npj Materials Degradation (2018) 2:13 ;

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Solvation of Lithium Ions in Mixed Organic Electrolyte Solutions by Electrospray Ionization Mass Spectroscopy

Cited by 69 publications

References 21 publications

In situ FTIR spectra at the Cu electrode/propylene carbonate solution interface

In situ FTIR spectra at the Cu electrode/propylene carbonate solution interface

Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries

Passivation behaviour of aluminium current collector in ionic liquid alkyl carbonate (hybrid) electrolytes

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