On the use of LiPF3(CF2CF3)3 (LiFAP) solutions for Li-ion batteries. Electrochemical and thermal studies

Gnanaraj, Joe; Zinigrad, Ella; Asraf, L.; Sprecher, Milon; Gottlieb, Hugo E.; Geissler, W.; Schmidt, Michael A.; Aurbach, Doron

doi:10.1016/j.elecom.2003.08.020

Cited by 64 publications

(49 citation statements)

References 15 publications

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“…In the first cathodic sweep, decomposition of electrolyte is apparently evident at lower potentials (<∼0.7 V vs. Li), which consume excess lithium ions and it is not reversible. 36 The decomposed solvent molecules form the solid electrolyte interphase (SEI) over the surface of the graphene nanosheets, which mainly comprises of polyethylene oxide, polycarbonates and some insoluble inorganic by-products. 25,36 However, in the subsequent anodic sweep and rest of the cycles, no noticeable reduction/oxidation curves are apparent.…”

Section: Resultsmentioning

confidence: 99%

“…36 The decomposed solvent molecules form the solid electrolyte interphase (SEI) over the surface of the graphene nanosheets, which mainly comprises of polyethylene oxide, polycarbonates and some insoluble inorganic by-products. 25,36 However, in the subsequent anodic sweep and rest of the cycles, no noticeable reduction/oxidation curves are apparent. In addition, almost rectangular shape of CV traces clearly indicates that the Li-ions are adsorbed on the both sides of the graphene nanosheets or in other words psudocapacitive storage.…”

Section: Resultsmentioning

confidence: 99%

“…The polymeric films are the main components in the solid electrolyte interphase (SEI) formed over the surface of the electrode. 25,36 The plot of discharge capacity vs. cycle number is given for 30 cycles in figure 6(b). Capacity fading is observed during the cycling and capacity of 365 mAh g -1 is noted after 30 cycles, which is 52% of reversible capacity.…”

Section: Resultsmentioning

confidence: 99%

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Non-aqueous energy storage devices using graphene nanosheets synthesized by green route

et al. 2013

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In this paper we report the use of triethylene glycol reduced graphene oxide (TRGO) as an electrode material for non-aqueous energy storage devices such as supercapacitors and Li-ion batteries. TRGO based non–aqueous symmetric supercapacitor is constructed and shown to deliver maximum energy and power densities of 60.4 Wh kg–1 and 0.15 kW kg–1, respectively. More importantly, symmetric supercapacitor shows an extraordinary cycleability (5000 cycles) with over 80% of capacitance retention. In addition, Li-storage properties of TRGO are also evaluated in half-cell configuration (Li/TRGO) and shown to deliver a reversible capacity of ∼705 mAh g–1 with good cycleability at constant current density of 37 mA g–1. This result clearly suggests that green-synthesized graphene can be effectively used as a prospective electrode material for non-aqueous energy storage systems such as Li-ion batteries and supercapacitors

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Non-aqueous energy storage devices using graphene nanosheets synthesized by green route

et al. 2013

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“…Liion cells possess a high energy density but can cause catastrophic incidents that could end up costly space missions, those incidents are mainly related to the overheating or thermal runaway of Li-ion cells which can lead to fire and explosion. The thermal runaway behavior of a Li-ion cell is dominated by the exothermic reactions between its electrolyte and electrode materials [1][2][3]. Thermal runaway occurs when the exothermic reactions go out of control, thus the self-heating rate of the cell increases to the point that it begins to generate more heat than what can be dissipated [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Understanding the behavior of Li-ion cells during thermal runaway is very important for ensuring their safety and reliability. The use of accelerating rate calorimeter (ARC) equipment allows the thermal analysis of Li-ion cells under adiabatic conditions [2,3,[5][6][7]. ARC measurements are useful to obtain onset temperature points of self-heating and thermal runaway reactions.…”

Section: Introductionmentioning

confidence: 99%

Accelerating Rate Calorimetry Tests of Lithium-Ion Cells Before and After Storage Degradation at High Temperature

Mendoza-Hernandez

Taniguchi

Ishikawa³

et al. 2017

E3S Web Conf.

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Understanding the behavior of Li-ion cells during thermal runaway is critical to evaluate the safety of these energy storage devices under outstanding conditions. Li-ion cells possess a high energy density and are used to store and supply energy to many aerospace applications. Incidents related to the overheating or thermal runaway of these cells can cause catastrophic damages that could end up costly space missions; therefore, thermal studies of Li-ion cells are very important for ensuring safety and reliability of space missions. This work evaluates the thermal behavior of Li-ion cells before and after storage degradation at high temperature using accelerating rate calorimeter (ARC) equipment to analyze the thermal behavior of Li-ion cells under adiabatic conditions. Onset temperature points of self-heating and thermal runaway reactions are obtained. The onset points are used to identify non-self-heating, self-heating and thermal runaway regions as a function of state of charge. The results obtained can be useful to develop accurate thermo-electrochemical models of Li-ion cells.

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Designer Anions for Better Rechargeable Lithium Batteries and Beyond

Song,

Wang,

Feng

et al. 2024

Advanced Materials

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Non‐aqueous electrolytes, generally consisting of metal salts and solvating media, are indispensable elements for building rechargeable batteries. As the major sources of ionic charges, the intrinsic characters of salt anions are of particular importance in determining the fundamental properties of bulk electrolyte, as well as the features of the resulting electrode‐electrolyte interphases/interfaces. To cope with the increasing demand for better rechargeable batteries requested by emerging application domains, the structural design and modifications of salt anions are highly desired. Here, salt anions for lithium and other monovalent (e.g., sodium and potassium) and multivalent (e.g., magnesium, calcium, zinc, and aluminum) rechargeable batteries are outlined. Fundamental considerations on the design of salt anions are provided, particularly involving specific requirements imposed by different cell chemistries. Historical evolution and possible synthetic methodologies for metal salts with representative salt anions are reviewed. Recent advances in tailoring the anionic structures for rechargeable batteries are scrutinized, and due attention is paid to the paradigm shift from liquid to solid electrolytes, from intercalation to conversion/alloying‐type electrodes, from lithium to other kinds of rechargeable batteries. The remaining challenges and key research directions in the development of robust salt anions are also discussed.This article is protected by copyright. All rights reserved

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On the use of LiPF3(CF2CF3)3 (LiFAP) solutions for Li-ion batteries. Electrochemical and thermal studies

Cited by 64 publications

References 15 publications

Non-aqueous energy storage devices using graphene nanosheets synthesized by green route

Non-aqueous energy storage devices using graphene nanosheets synthesized by green route

Accelerating Rate Calorimetry Tests of Lithium-Ion Cells Before and After Storage Degradation at High Temperature

Designer Anions for Better Rechargeable Lithium Batteries and Beyond

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