Solvent-LiBF<sub>4</sub> Phase Diagrams, Ionic Association and Solubility - Cyclic Carbonates and Lactones

Allen, Joshua L.; Seo, Daniel M.; Ly, Quang; Boyle, Paul D.; Henderson, Wesley A.

doi:10.1149/1.4717961

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…GBL-LiX Phase Behavior The phase diagram of (GBL) n -LiBF 4 mixtures has been previously reported and is shown in Fig. 3 (20). (GBL) n -LiBF 4 mixtures behave similar to (EC) n -LiBF 4 mixtures, forming 2/1 and 1/1 crystalline solvates.…”

Section: Ionic Conductivitymentioning

confidence: 67%

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Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

et al. 2013

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Lithium difluoro(oxalato)borate (LiDFOB) and lithium bis(oxalato)borate (LiBOB) have emerged as superior additives for the formation of favorable passivation layers on active electrodes. In this study, we systematically investigate the thermal phase behavior and electrochemical/physicochemical properties of LiBF4, LiDFOB and LiBOB mixtures with the cyclic carbonate ethylene carbonate (EC) and ester γ-butyrolactone (GBL). Raman spectroscopy was used to determine the degree of solvation that is present in the liquid electrolytes, which may then be directly correlated to the bulk conductivity of the mixtures.

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Section: Ionic Conductivitymentioning

confidence: 67%

“…Characterization and Phase BehaviorEC-LiX Phase Behavior The previously reported phase diagram for (EC) n -LiBF 4 mixtures is shown in Fig.1for comparison with the data for LiDFOB and LiBOB(20). (EC) n -LiBF 4 mixtures form 2/1 and 1/1 (EC/Li) crystalline solvates.…”

mentioning

confidence: 83%

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

et al. 2013

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Elucidating Li⁺‐Ion Interactions with Ethylene Carbonate: Insights from Vibrational Infrared Spectroscopy, Electron Affinity Analysis, and Charge Dynamics to Enhance Lithium‐Ion Battery Performance

Khan,

Uddin

et al. 2024

Energy Tech

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Lithium‐ion batteries have many advantages in terms of safety and functionality compared to other batteries, which contain toxic heavy metals such as lead, nickel, cadmium, and mercury that are harmful to the environment and pose human health hazards. Herein, molecular dynamics simulations are employed to examine the chemical properties of Li+ when interacting with solid electrolytes, specifically solid electrolytes ethylene carbonate (EC). The coordination number of Li+ in this context is determined to be equal to 4 (n = 4). The distinctive characteristics of the absorption of lithium atoms (Li‐atoms) by EC in its equilibrium solvent state and as part of a complex Li+ cluster are also investigated. Vibration spectral analysis is employed to confirm one distinct Li atom with EC. This investigation reveals a noteworthy trend where the interconnection number of EC solvents experiences a distinct increase in direct correlation with a reduction in minimization energy and charge states of Li+ ion. Primarily investigation focuses on optimizing the energy associated with electron affinity and charge of ions in the context of EC solvent. This study exclusively supports the observation of three coordination states of EC calculated in the presence of Li+ (n = 1–4) and B represents the coordination number of the organic solvent ethylene

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Medium energy ion scattering for the high depth resolution characterisation of high-k dielectric layers of nanometer thickness

Berg¹,

Reading²,

Bailey³

et al. 2013

Applied Surface Science

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Medium energy ion scattering (MEIS) using, typically, 100 -200 keV H + or He + ions derives it ability to characterize nanolayers from the fact that the energy after backscattering depends i) on the elastic energy loss suffered in a single collision with a target atom and ii) on the inelastic energy losses on its incoming and outgoing trajectories. From the former the mass of the atom can be determined and from the latter its depth. Thus MEIS yields depth dependent compositional and structural information, with high depth resolution (sub-nm near the surface) and good sensitivity for all but the lighter masses. It is particularly well suited for the depth analysis of high-k multilayers of nanometer thickness. Accurate quantification of the depth distributions of atomic species can be obtained using suitable spectrum simulation. In the present paper, important aspects of MEIS including quantification, depth resolution and spectrum simulation are briefly discussed. The capabilities of the technique in terms of the high depth resolution layer compositional and structural information it yields, is illustrated with reference to the detailed characterization of a range of high-k nanolayer and multilayer structures for current microelectronic devices or those still under development: i) HfO 2 and HfSiOx for gate dielectric applications, including a TiN/ Al 2 O 3 / HfO 2 / SiO 2 / Si structure, ii) TiN/ SrTiO 3 / TiN and iii) TiO 2 / Ru/ TiN multilayers structures for metal-insulator-metal capacitors (MIMcaps) in DRAM applications.The unique information provided by the technique is highlighted by its clear capability to accurately quantify the composition profiles and thickness of nanolayers and complex multilayers as grown, and to identify the nature and extent of atom redistribution (e.g. intermixing, segregation) during layer deposition, annealing and plasma processing. The ability makes it a valuable tool in the development of the nanostructures that will become increasingly important as device dimensions continue to be scaled down. KeywordsMedium energy ion scattering analysis, High resolution depth profiling, High-k nanolayers, Metal-insulator-metal capacitor (MIMcap) layers 2

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Solvent-LiBF₄ Phase Diagrams, Ionic Association and Solubility - Cyclic Carbonates and Lactones

Cited by 5 publications

References 8 publications

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

Elucidating Li⁺‐Ion Interactions with Ethylene Carbonate: Insights from Vibrational Infrared Spectroscopy, Electron Affinity Analysis, and Charge Dynamics to Enhance Lithium‐Ion Battery Performance

Medium energy ion scattering for the high depth resolution characterisation of high-k dielectric layers of nanometer thickness

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Solvent-LiBF4 Phase Diagrams, Ionic Association and Solubility - Cyclic Carbonates and Lactones

Cited by 5 publications

References 8 publications

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF4, LiDFOB and LiBOB

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF4, LiDFOB and LiBOB

Elucidating Li+‐Ion Interactions with Ethylene Carbonate: Insights from Vibrational Infrared Spectroscopy, Electron Affinity Analysis, and Charge Dynamics to Enhance Lithium‐Ion Battery Performance

Medium energy ion scattering for the high depth resolution characterisation of high-k dielectric layers of nanometer thickness

Contact Info

Product

Resources

About

Solvent-LiBF₄ Phase Diagrams, Ionic Association and Solubility - Cyclic Carbonates and Lactones

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

Thermal Phase Behavior and Electrochemical/Physicochemical Properties of Carbonate and Ester Electrolytes with LiBF₄, LiDFOB and LiBOB

Elucidating Li⁺‐Ion Interactions with Ethylene Carbonate: Insights from Vibrational Infrared Spectroscopy, Electron Affinity Analysis, and Charge Dynamics to Enhance Lithium‐Ion Battery Performance