Electrochemical stability of glyme-based electrolytes for Li–O<sub>2</sub> batteries studied by <i>in situ</i> infrared spectroscopy

Horwitz, Gabriela; Calvo, Ernesto J.; Leo, Lucila P. Méndez De; Llave, Ezequiel de la

doi:10.1039/d0cp02568b

Cited by 28 publications

(21 citation statements)

References 47 publications

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“…128 As for the effects of the glyme chain length, SNIFTIRS and electrochemical data on Li-O 2 cells using gold electrodes lately suggested that G 2 may be more stable than G 4 between 3.6 and 3.9 V vs. Li + /Li, although water impurities may reduce its stability. 129 Tables captions Table 1. Acronyms of the various compound and chemical species cited throughout the text.…”

Section: Greenmentioning

confidence: 99%

“…Li + /Li, although water impurities may reduce its stability. 129 On the other hand, a recent comparative study of concentrated solutions of LiTFSI and LiNO 3 salts in either G 2 or G 3 demonstrated that the former solvent would have volatility issues limiting its applicability in Li–O 2 cells with open design. Gradual solvent evaporation during cycling was observed along with a rapid cell failure.…”

Section: “Glyme Electrolyte” In a Li–o2 Battery: The Upcoming Futurementioning

confidence: 99%

“…Notably, this system could store even more energy than the Li–S cell and has been suggested as a possible battery for future applications. 105–130 In this review, we discuss with chronological details various developments in the research on glyme-based electrolytes for lithium batteries, which are summarized in the scheme in Fig. 1 (panel a).…”

Section: Introductionmentioning

confidence: 99%

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Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

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Section: Greenmentioning

confidence: 99%

Section: “Glyme Electrolyte” In a Li–o2 Battery: The Upcoming Futurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

et al. 2022

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“…In addition, Llave and co‐workers [30] systematically investigated the electrochemical stability of glyme‐based electrolytes using SNIFTIRS experiments. This article brings several main insights.…”

Section: In Situ Ftir Techniquementioning

confidence: 99%

Application of In Situ Raman and Fourier Transform Infrared Spectroelectrochemical Methods on the Electrode‐Electrolyte Interface for Lithium−Oxygen Batteries

Chen

Song

et al. 2021

Batteries & Supercaps

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The development of rechargeable lithium−oxygen (Li−O2) batteries with high specific energy is essential to satisfy increasing energy consumption. It is critical to understand the dynamic process and detailed pathways during cell operation, which will allow us to control the reaction, suppress the formation of byproducts, and optimize battery performance. In situ vibrational spectroelectrochemical techniques, including in situ Raman spectroscopy and in situ Fourier Transform Infrared (FTIR) spectroscopy, are powerful analytical methods for the purposes of battery studies and are reviewed in this article. The two in situ techniques can acquire real‐time information of adsorbed species on the interface of the electrode, and reveal the reaction mechanism on the interface of the electrode/electrolyte in depth. In situ Raman technique mainly monitors intermediate species and products in Li−O2 batteries. The applications of surface‐enhanced Raman spectroscopy (SERS) for Li−O2 batteries are described in detail in the review. For the in situ FTIR technique, two commonly used in situ methods are introduced in Li−O2 batteries, namely, subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) and attenuated total reflection surface enhanced infrared absorption spectroscopy (ATR‐SEIRAS). The reaction mechanism and failure mechanism of the cell are discussed by using the in situ FTIR technique.

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“…26 In addition, because traditional organic liquid electrolytes are volatile, flammable, and have poor chemical stability, lithium-oxygen batteries, as a semi-open battery system, will deteriorate in terms of safety and cycle stability. [27][28][29] Therefore, to prepare a stable polymer electrolyte for lithium-oxygen batteries, it is particularly urgent to develop a high-performance polymer separator.…”

Section: Introductionmentioning

confidence: 99%

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Liu

Wang

et al. 2021

Int J Energy Res

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Due to its advantages in specific capacity, lithium-oxygen batteries are expected to increase the recharge mileage of electric vehicles. However, the safety and cycle stability problems of lithium-oxygen batteries have not been completely resolved. Herein, through the non-solvent-induced phase separation method combined with the in-situ hydrolysis modification strategy of tetrabutyl titanate, a type of polyetherimide (PEI) separator with typical fingershaped pores and honeycomb-shaped supporting layer pore structure was prepared. After being infiltrated by EMIM-BF 4 ionic liquid electrolyte, the ionic conductivity of the separator can reach 0.75 mS cm À1 . Due to the low crystallinity, high thermal stability, and stable ion transport pore structure of the separators, the assembled lithium-oxygen batteries can stably cycle for more than 75 cycles under the condition of a limit of 1000 mAh g À1 . In addition, under the strategy of high-performance cathode catalysts and electrolyte additives, the application of the porous PEI separators in lithium-oxygen batteries will be further expanded.

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Electrochemical stability of glyme-based electrolytes for Li–O₂ batteries studied by in situ infrared spectroscopy

Abstract:
In situ subtractively normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments were performed simultaneously with electrochemical experiments relevant to Li-air battery operation on gold electrodes in two glyme-based electrolytes: diglyme (DG)...

Cited by 28 publications

References 47 publications

Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

Application of In Situ Raman and Fourier Transform Infrared Spectroelectrochemical Methods on the Electrode‐Electrolyte Interface for Lithium−Oxygen Batteries

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

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Electrochemical stability of glyme-based electrolytes for Li–O2 batteries studied by in situ infrared spectroscopy

Abstract: In situ subtractively normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments were performed simultaneously with electrochemical experiments relevant to Li-air battery operation on gold electrodes in two glyme-based electrolytes: diglyme (DG)...

Cited by 28 publications

References 47 publications

Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

Glyme-based electrolytes: suitable solutions for next-generation lithium batteries

Application of In Situ Raman and Fourier Transform Infrared Spectroelectrochemical Methods on the Electrode‐Electrolyte Interface for Lithium−Oxygen Batteries

Porous polyetherimide separators controlled in‐situ by tetrabutyl titanate as polymer electrolyte with ionic liquid for lithium‐oxygen batteries

Contact Info

Product

Resources

About

Electrochemical stability of glyme-based electrolytes for Li–O₂ batteries studied by in situ infrared spectroscopy

Abstract:
In situ subtractively normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments were performed simultaneously with electrochemical experiments relevant to Li-air battery operation on gold electrodes in two glyme-based electrolytes: diglyme (DG)...