Lithium-air batteries for medium- and large-scale energy storage

Rinaldi, Ali; Wang, Y.; Tan, K. T.; Wijaya, Olivia; Yazami, Rachid

doi:10.1016/b978-1-78242-013-2.00011-x

Cited by 10 publications

(25 citation statements)

References 136 publications

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“…3,4 The rotating ring disk electrode has several limitations such as salt precipitation at high uorocarbon concentration, high volume of sample, and also problematic data interpretation due to the probability of electrolyte/additive instability in the O 2 environment. However, most of the previous studies either did not quantify the increase in O 2 concentration and diffusion coefficient nor did they quantify them beyond using electrochemical techniques such as Rotating Ring Disk Electrodes (RRDEs).…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4][5] In fact, Read et al found that the discharge capacity of Li-O 2 cells increased with the O 2 partial pressure and with the Bunsen coefficient (cm 3 O 2 per cm 3 solution) of the catholyte. [1][2][3][4][5] In fact, Read et al found that the discharge capacity of Li-O 2 cells increased with the O 2 partial pressure and with the Bunsen coefficient (cm 3 O 2 per cm 3 solution) of the catholyte.…”

Section: Introductionmentioning

confidence: 99%

“…17 This increase necessarily means that the uorocarbon additive inuences the cell reaction. 3 The limited miscibility of PFCs in organic solvents is one of the main issues in Li-O 2 cell application. Further, Wang et al found an increase in the current density during O 2 reduction by dispersing peruorotributylamine in propylene carbonate solvent.…”

Section: Introductionmentioning

confidence: 99%

“…Further, Wang et al found an increase in the current density during O 2 reduction by dispersing peruorotributylamine in propylene carbonate solvent. 3 Another important requirement for PFC additives is good chemical stability in the Li-O 2 cell environment. We also reported an enhanced current and discharge capacity with 1-methoxyheptauoropropane additive in DME and TEGDME based battery electrolytes with a rotating ring disk electrode (RRDE) and a Li-O 2 cell.…”

Section: Introductionmentioning

confidence: 99%

“…We also reported an enhanced current and discharge capacity with 1-methoxyheptauoropropane additive in DME and TEGDME based battery electrolytes with a rotating ring disk electrode (RRDE) and a Li-O 2 cell. 3 In this work, we investigated a gamma-uorinated ether, 1,1,1,2,2,3,3,4,4-nonauoro-6-propoxyhexane (TE4) (Fig. One proposed strategy to overcome this issue is a dispersion of the liquid medium.…”

Section: Introductionmentioning

confidence: 99%

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A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

Wijaya¹,

Hartmann

Younesi

et al. 2015

J. Mater. Chem. A

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Perfluorocarbons (PFCs) are known for their high O 2 solubility and have been investigated as additives in Li-O 2 cells to enhance the cathode performance. However, the immiscibility of PFCs with organic solvents remains the main issue to be addressed as it hinders PFC practical application in Li-O 2 cells.Furthermore, the effect of PFC additives on the O 2 mass transport properties in the catholyte and their stability has not been thoroughly investigated. In this study, we investigated the properties of 1,1,1,2,2,3,3,4,4-nonafluoro-6-propoxyhexane (TE4), a gamma fluorinated ether, and found it to be miscible with tetraglyme (TEGDME), a solvent commonly used in Li-O 2 cells. The results show that with the TE4 additive up to 4 times higher O 2 solubility and up to 2 times higher O 2 diffusibility can be achieved. With 20 vol% TE4 addition, the discharge capacity increased about 10 times at a high discharge rate of 400 mA g C À1, corresponding to about 0.4 mA cm À2 . The chemical stability of TE4 afterLi-O 2 cell discharge is investigated using 1 H and 19 F NMR, and the TE4 signal is retained after discharge.FTIR and XPS measurements indicate the presence of Li 2 O 2 as a discharged product, together with side products from the parasitic reactions of LiTFSI salt and TEGDME.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

Wijaya¹,

Hartmann

Younesi

et al. 2015

J. Mater. Chem. A

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Influence of carbon microstructure on the Li-O₂ battery first-discharge kinetics

Wijaya

Hoster

Rinaldi

2016

Int. J. Energy Res.

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Summary Defects in the carbon microstructure have been reported to enhance the discharge performance of Li–O2 battery. However, systematic studies correlating the presence of defects with the discharge kinetics have not addressed the variation of carbon electrode surface areas. In this work, carbon blacks and carbon nanofibers with different defect densities were investigated for their discharge properties. The electrolyte‐accessible areas of the carbon electrodes were obtained from Cyclic voltammetry measurements. The microstructure and surface areas of the carbons were characterized by Raman spectroscopy, electron microscopy, and N2 isotherm. Linear sweep voltammetry and galvanostatic discharge experiments consistently demonstrated that graphitic carbons have more negative onset potentials and more negative discharge potentials at the same current density than defective carbons. The linear sweep voltammetry data were normalized to the carbon masses, Brunauer–Emmet–Teller surface areas, and double layer capacitance‐derived areas for comparison. Plot of inverse charge transfer resistance and double layer capacitance from electrochemical impedance spectroscopy measurements were used to extract current density values without knowledge of electrode areas. The current densities from impedance measurements exhibited good agreement with the data from linear sweep experiments. The electrochemical experiments conclusively showed that defects on the graphitic microstructure increase the discharge kinetics of the Li–O2 battery. Copyright © 2016 John Wiley & Sons, Ltd.

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Silicon–air batteries: progress, applications and challenges

2020

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Lithium-air batteries for medium- and large-scale energy storage

Cited by 10 publications

References 136 publications

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

Influence of carbon microstructure on the Li-O₂ battery first-discharge kinetics

Silicon–air batteries: progress, applications and challenges

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Lithium-air batteries for medium- and large-scale energy storage

Cited by 10 publications

References 136 publications

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O2 batteries

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O2 batteries

Influence of carbon microstructure on the Li-O2 battery first-discharge kinetics

Silicon–air batteries: progress, applications and challenges

Contact Info

Product

Resources

About

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

A gamma fluorinated ether as an additive for enhanced oxygen activity in Li–O₂ batteries

Influence of carbon microstructure on the Li-O₂ battery first-discharge kinetics