Electrochemical intercalation of lithium into graphite: influence of the solvent composition and of the nature of the lithium salt

Naji, A.; Willmann, P.; Billaud, D.

doi:10.1016/s0008-6223(98)00119-5

Cited by 39 publications

(20 citation statements)

References 24 publications

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“…In agreement with the well-known mechanism of formation of LiF with the reduction of CF x [8,12,13,41], these particles can be attributed to LiF. By analogy to lithium-graphite intercalation compounds, such as LiC 6 , F À ions, which are formed during the fluorocarbon reduction, diffuse within the interlayer and combine with solvated Li þ on the sheet's edges [42,43]. A recent study on the discharge mechanism of fluorinated carbon nanofibres showed that such particles made of LiF, are formed outside the carbonaceous matrix [8,13].…”

Section: Electrochemical Propertiessupporting

confidence: 78%

High energy density of primary lithium batteries working with sub-fluorinated few walled carbon nanotubes cathode

Ahmad

Dubois

Guérin

et al. 2017

Journal of Alloys and Compounds

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International audienceFluorinated carbon nanotubes used as cathode material exhibit a capacity exceeding the theoretical value when used in primary lithium battery. The measured experimental capacity, the faradic yield and the energy density were increased, exceeding the expected theoretical values for sub-fluorinated few walled carbon nanotubes (FWCNTs).Although the molar carbon/fluorine ratio was only of 0.37 (i.e CF0.37), an experimental capacity of 900 mAh.g−1 was obtained which is higher than the theoretical value of 521 mAh.g−1. With the same material, an unprecedented energy density of 2565 Wh kg−1 was reached associated with a faradic yield of 172%. The materials were deeply characterized using TEM, Raman and solid state 13C and 19F NMR in order to explain the extra-capacity. Such high electrochemical values can be correlated to the reinforcement effect of the central tube(s), coupled with a low amount of structural defects

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Section: Electrochemical Propertiessupporting

confidence: 78%

High energy density of primary lithium batteries working with sub-fluorinated few walled carbon nanotubes cathode

Ahmad

Dubois

Guérin

et al. 2017

Journal of Alloys and Compounds

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“…Carbonaceous materials have been widely used as anode materials for Li-ion batteries because of their high-initial columbic efficiency and good cyclic stability [1][2][3][4]. However, new anode materials with higher discharge capacity and better reversibility capacity are still strongly demanded for expanding applications to the large energyconsuming devices such as electric vehicles and other various digital portable equipments of next generation [5,6].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of silicon monoxide/graphite/carbon nanotubes composite as anode for lithium-ion batteries

Ren

Ding

Yuan

et al. 2011

J Solid State Electrochem

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Silicon monoxide/graphite/multi-walled carbon nanotubes (SiO/G/CNTs) material was prepared by ball milling followed by chemical vapor deposition method and characterized by X-ray diffraction, scanning electron microscopy (SEM), galvanostatic charge-discharge, and AC impedance spectroscopy, respectively. The results revealed that SiO/G/CNTs exhibited an initial specific discharge capacity of 790 mAh g −1 with a columbic efficiency of 65%. After 100 cycles, a high reversible capacity of 495 mAh g −1 is still retained. The improved electrochemical properties were due to beneficial SEI by the SEM and EIS results.

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“…Many NG's have been studied electrochemically to characterize their reversible capacity and first cycle irreversible capacity loss (ICL), or first cycle coulombic inefficiency. The dependence of performance on the particle size [1], surface area [2], surface modification [3,4], and mechanical milling [5,6], in various organic electrolytes has been studied, as well as the dependence on the composition of the electrolyte [7,8]. The ICL is due to primarily to the formation of a passivating solid electrolyte interface (SEI) layer by the decomposition of the electrolyte to form both as SEI layer and gaseous products on the surface of graphite during the initial charge/discharge cycles [9].…”

Section: Introductionmentioning

confidence: 99%

The dependence of natural graphite anode performance on electrode density

Shim

Striebel

2004

Journal of Power Sources

106

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The effect of electrode density for lithium intercalation and irreversible capacity loss on the natural graphite anode in lithium ion batteries was studied by electrochemical methods.Both the first-cycle reversible and irreversible capacities of the natural graphite anode decreased with an increase in the anode density though compression. The reduction in reversible capacity was attributed to a reduction in the chemical diffusion coefficient for lithium though partially agglomerated particles with a larger stress. For the natural graphite in this study the potentials for Li (de)insertion shifted between the first and second formation cycles and the extent of this shift was dependent on electrode density. The relation between this peak shift and the irreversible capacity loss are probably both due to the decrease in graphite surface area with compression.

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Electrochemical intercalation of lithium into graphite: influence of the solvent composition and of the nature of the lithium salt

Cited by 39 publications

References 24 publications

High energy density of primary lithium batteries working with sub-fluorinated few walled carbon nanotubes cathode

High energy density of primary lithium batteries working with sub-fluorinated few walled carbon nanotubes cathode

Preparation and characterization of silicon monoxide/graphite/carbon nanotubes composite as anode for lithium-ion batteries

The dependence of natural graphite anode performance on electrode density

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