The electrochemical behaviour of 1,3-dioxolane—LiClO4 solutions—I. Uncontaminated solutions

Aurbach, Doron; Youngman, Orit; Gofer, Yosef; Meitav, A.

doi:10.1016/0013-4686(90)87055-7

Cited by 167 publications

(118 citation statements)

References 16 publications

Supporting

Mentioning

109

Contrasting

Order By: Relevance

“…3a) of all three samples show a binding energy maximum at 284.6 eV corresponding to the conductive carbon and to oligomers of reduced DOL such as (CH 2 CH 2 OCH 2 O-) n and (CH 2 CH 2 O-) n . 47 Further, an energy peak at 290 eV appears originating from semi organic salts such as HCO 2 Li (Li formate) as result of DOL decomposition. 31,47 By considering both electrolyte configurations DME/DOL + LiNO 3 and DOL + LiNO 3 , the decomposition of the co-solvent DOL mainly contributes to signal at 290 eV for these semi organic salts.…”

Section: Resultsmentioning

confidence: 99%

“…47 Further, an energy peak at 290 eV appears originating from semi organic salts such as HCO 2 Li (Li formate) as result of DOL decomposition. 31,47 By considering both electrolyte configurations DME/DOL + LiNO 3 and DOL + LiNO 3 , the decomposition of the co-solvent DOL mainly contributes to signal at 290 eV for these semi organic salts. For that reason, the addition of LiNO 3 cannot prevent the decomposition of DOL.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Jaumann

Balach

Klose

et al. 2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

In order to utilize silicon as alternative anode for unfavorable lithium metal in lithium -sulfur (Li-S) batteries, a profound understanding of the interfacial characteristics in ether-based electrolytes is required. Herein, the solid electrolyte interface (SEI) of a nanostructured silicon/carbon anode after long-term cycling in an ether-based electrolyte for Li-S batteries is investigated. The role of LiNO 3 and 1,3-dioxolane (DOL) in dimethoxy ethane (DME) solutions as typically used electrolyte components on the electrochemical performance and interfacial characteristics on silicon are evaluated. Because of the high surface area of our nanostructured electrode owing to the silicon particle size of around 5 nm and the porous carbon scaffold, the interfacial characteristics dominate the overall electrochemical reversibility opening a detailed analysis. We show that the use of DME/DOL solutions under ambient temperature causes higher degradation of electrolyte components compared to carbonate-based electrolytes used for Li-ion batteries (LIB). This behavior of DME/DOL mixtures is associated with different SEI component formation and it is demonstrated that LiNO 3 addition can significantly stabilize the cycle performance of nanostructured silicon/carbon anodes. A careful postmortem analysis and a discussion in context to carbonate-based electrolyte solutions helps to understand the degradation mechanism of silicon-based anodes in rechargeable lithium-based batteries. Silicon is a highly attractive anode material for rechargeable Liion batteries (LIB) and post LIB systems owing to its high capacity and comparable discharge potential to lithium metal. Considerable progress has been achieved in recent years to tackle the peculiarities of silicon during de-/lithiation.1-2 The enormous volume expansion which causes fracture of individual particles and a low reversibility could be addressed by hierarchically designed nano-sized and amorphous silicon structures.3-6 However, it was shown that among other parameters the electrochemical performance of particularly nanostructured silicon significantly depends on the chosen electrolyte. [7][8][9] This observation is mainly caused by the characteristics of the interfacial layer strongly related to the surface area of the electrode material which is especially high on nanostructures. The interfacial layer, commonly known as solid-electrolyte-interface (SEI), is a surface film typically formed in the initial cycles by decomposition of electrolyte components. Because of the large volume expansion of silicon during lithiation, the SEI likely cracks and is regenerated causing continuous electrolyte consumption and high degradation. In order to reduce degradation and apply silicon as high-performance anode in rechargeable Li-based batteries, a profound knowledge of the interfacial characteristics is necessary. The SEI on silicon is typically studied in carbonate-based electrolytes since silicon is majorly considered as alternative anode for graphite in LIB. [10][11][12][13] Howeve...

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Jaumann

Balach

Klose

et al. 2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…7,8 It is common to measure the plating/stripping efficiency of lithium by assembling Li||Cu cells. [9][10][11][12][13] In this cell design, a small amount of Li is cycled, with an excess reservoir of lithium present. One limitation of this cell design is the difficulty of controlling the design and construction of the solid electrolyte interphase 14 (SEI) on lithium, as the low reduction potential of the lithium metal electrode present during cell construction will cause immediate reaction with electrolyte upon exposure.…”

mentioning

confidence: 99%

Investigation of the Lithium Solid Electrolyte Interphase in Vinylene Carbonate Electrolytes Using Cu||LiFePO₄Cells

Brown

Jurng

Lucht

2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

The influence of vinylene carbonate (VC) on the plating/stripping of lithium was investigated using Cu||LiFePO 4 cells. These cells allow for easy fabrication and in-situ generation of lithium, with no excess lithium to influence performance. Addition of VC to the electrolyte improves both capacity retention and efficiency. IR and XPS spectroscopy of the surface of the plated lithium suggests the presence of a significant amount of poly(VC) when the electrolyte (1.2 M LiPF 6 in ethylene carbonate (EC): ethyl methyl carbonate (EMC) (3:7, vol)) contains 5% of added VC. This suggests employing additives that generate polymeric species on the surface of lithium improves plating/stripping performance in carbonate electrolytes. The plating and stripping of the lithium metal negative electrode in non-aqueous electrolytes has been investigated for decades.1-3 In particular, carbonate solvents have relatively high voltage stability, making them desirable electrolytes for high-energy density lithium batteries.3-6 However, the efficiency of plating/stripping lithium in carbonate electrolytes does not meet requirements for commercial application (> 99.9%). 7,8 It is common to measure the plating/stripping efficiency of lithium by assembling Li||Cu cells. [9][10][11][12][13] In this cell design, a small amount of Li is cycled, with an excess reservoir of lithium present. One limitation of this cell design is the difficulty of controlling the design and construction of the solid electrolyte interphase 14 (SEI) on lithium, as the low reduction potential of the lithium metal electrode present during cell construction will cause immediate reaction with electrolyte upon exposure. Thus, a reaction between the electrolyte and the lithium metal electrode will occur before cycling begins. Further, the excess lithium within the cell can significantly increase the cycle life of the cell making it difficult to compare to commercial cells, with a limited supply of lithium.Contrary to Li||Cu cells, Cu||LiFePO 4 cells have air-stable components, facilitating their processing and assembly. 15,16 Further, the in-situ formation of lithium metal and low reactivity of LiFePO 4 ensures additives under investigation do not react with the electrode surface upon construction and are only reduced upon initial cycling. This affords the possibility for controlled design and construction of the SEI on lithium metal since the reduction of the electrolyte can be controlled by current density, cell potential, and the quantity of lithium plated. Finally, given that there is no excess lithium in Cu||LiFePO 4 cells, any observed improvements in capacity retention, Coulombic efficiency, or impedance should be applicable to other lithium metal based battery systems.Vinylene carbonate (VC) is a well known electrolyte additive for lithium-ion batteries, demonstrating exceptional performance for graphite and several cathode materials. [17][18][19][20][21][22][23][24] Further, the reaction products of VC with lithium have been investigated in detail, using Li||Ni ...

show abstract

“…This makes it possible to use the method of electrochemical noise determination for screening organic electrolytes for rechargeable lithium batteries. High, dendrite formation is absent [18] …”

Section: Resultsmentioning

confidence: 97%

“…According to [18], a lithium surface in the 1 M LiClO 4 +1,3-dioxolane electrolyte is coated with a thin flexible homogeneous passive film, which is not perforated under cathodic polarization. Lithium, which is deposited on the electrode, is rapidly coated by this film; as a result, dendrite formation on battery charge is hampered, providing high lithium cycling efficiency [19,20].…”

Section: Resultsmentioning

confidence: 99%

Noise characterization of surface processes of the Li/organic electrolyte interface

2005

View full text Add to dashboard Cite

The processes occurring in aprotic electrolyte on a lithium electrode in the steady state conditions and under polarization are studied using the method of electrochemical noise characterization. The evidence of the electrochemical noise measurements on polarized lithium electrodes indicates that the discharge of lithium ions under cathodic polarization, as well as lithium anodic dissolution, is localized under the passive film rather than on its surface. An increase in the polarizing current results in local breakdown of the film; in this case, the electrochemical process emerges on the electrode surface affecting the character of potential fluctuations. The intensity of electrochemical noise significantly increases in the course of cathodic polarization with high currents. The reason is that lithium metal crystals, which are formed under the passive film, perforate the film, and dendrites grow on its surface. The method shows the dependence of electrochemical noise intensity on the nature of the electrolyte and establishes the correlation between the stability of the lithium electrode in the course of cycling and the intensity of fluctuations. This offers an opportunity of using the method of electrochemical noise for screening organic electrolytes for lithium batteries.

show abstract

The electrochemical behaviour of 1,3-dioxolane—LiClO4 solutions—I. Uncontaminated solutions

Cited by 167 publications

References 16 publications

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Investigation of the Lithium Solid Electrolyte Interphase in Vinylene Carbonate Electrolytes Using Cu||LiFePO₄Cells

Noise characterization of surface processes of the Li/organic electrolyte interface

Contact Info

Product

Resources

About

The electrochemical behaviour of 1,3-dioxolane—LiClO4 solutions—I. Uncontaminated solutions

Cited by 167 publications

References 16 publications

Role of 1,3-Dioxolane and LiNO3Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Role of 1,3-Dioxolane and LiNO3Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Investigation of the Lithium Solid Electrolyte Interphase in Vinylene Carbonate Electrolytes Using Cu||LiFePO4Cells

Noise characterization of surface processes of the Li/organic electrolyte interface

Contact Info

Product

Resources

About

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Role of 1,3-Dioxolane and LiNO₃Addition on the Long Term Stability of Nanostructured Silicon/Carbon Anodes for Rechargeable Lithium Batteries

Investigation of the Lithium Solid Electrolyte Interphase in Vinylene Carbonate Electrolytes Using Cu||LiFePO₄Cells