'Chimie douce' synthesis and electrochemical properties of amorphous and crystallized LiNiVO4 vs. Li

Orsini, François; Baudrin, Emmanuel; Denis, S.; Dupont, L.; Touboul, M.; Guyomard, Dominique; Piffard, Y.; Tarascon, Jean‐Marie

doi:10.1016/s0167-2738(97)00514-6

Cited by 55 publications

(12 citation statements)

References 10 publications

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“…The most widely characterized and studied normal and inverse spinels are LiMn 2 O 4 and LiNiVO 4 , respectively. 9,[12][13][14][15][16][17][18][19][20][21] There are numerous other examples of both kinds where lithium ions can reversibly intercalate. For example, though the layered form of LiCoO 2 is the most widely used cathode material, lithium cobalt oxide has a (normal) spinel phase which can be used as a lithium ion battery cathode.…”

Section: Introductionmentioning

confidence: 99%

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Bhattacharya

Wolverton

2013

Phys. Chem. Chem. Phys.

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Spinel oxides represent an important class of cathode materials for Li-ion batteries. Two major variants of the spinel crystal structure are normal and inverse. The relative stability of normal and inverse ordering at different stages of lithiation has important consequences in lithium diffusivity, voltage, capacity retention and battery life. In this paper, we investigate the relative structural stability of normal and inverse structures of the 3d transition metal oxide spinels with first-principles DFT calculations. We have considered ternary spinel oxides LixM2O4 with M = Ti, V, Cr, Mn, Fe, Co and Ni in both lithiated (x = 1) and delithiated (x = 0) conditions. We find that for all lithiated spinels, the normal structure is preferred regardless of the metal. We observe that the normal structure for all these oxides has a lower size mismatch between octahedral cations compared to the inverse structure. With delithiation, many of the oxides undergo a change in stability with vanadium in particular, showing a tendency to occupy tetrahedral sites. We find that in the delithiated oxide, only vanadium ions can access a +5 oxidation state which prefers tetrahedral coordination. We have also calculated the average voltage of lithiation for these spinels. The calculated voltages agree well with the previously measured and calculated values, wherever available. For the yet to be characterized spinels, our calculation provides voltage values which can motivate further experimental attention. Lastly, we observe that all the normal spinel oxides of the 3d transition metal series have a driving force for a transformation to the non-spinel structure upon delithiation.

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Section: Introductionmentioning

confidence: 99%

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Bhattacharya

Wolverton

2013

Phys. Chem. Chem. Phys.

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“…The crystallized film (600°C) shows broad, reversible peaks and the film structure changes to amorphous at the end of the first discharge cycle. This type of structure destruction is well documented in case of metal vanadates, 11,18,24 titanium oxyfluorides, 25 etc. (used as anode material).…”

Section: Electrochemical Studiesmentioning

confidence: 80%

“…A similar type behavior has already been observed for bulk FeVO 4 and CrVO 4 vanadates: their capacity values reach a maximum at an annealing temperature of 400°C and decrease when the material starts to crystallize 24 . The improved electrochemical performance of LiNiVO 4 thin films compared to bulk materials 18 due to their smaller grain size leads to shorter lithium diffusion paths and better kinetics. The understanding of the redox mechanisms involved during electrochemical reactions using the XPS technique is currently in progress in our group.…”

Section: Electrochemical Studiesmentioning

confidence: 99%

Structural and electrochemical studies of annealed LiNiVO₄ thin films

Reddy¹,

Pecquenard²,

Vinatier³

et al. 2007

Surface & Interface Analysis

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We prepared stoichiometric lithium nickel vanadate amorphous thin films by using r.f. magnetron sputtering under controlled oxygen partial pressure. The amorphous films were heated at various temperatures, 300-600°C, for 8 h. The as-deposited and annealed thin films were characterized by Rutherford backscattering spectroscopy, nuclear reaction analysis, Auger electron spectroscopy, X-ray diffraction, scanning electron microscopy and atomic force microscopy. The electrochemical behavior of the various films was studied by the galvanostatic method. The cells were tested in a liquid electrolyte at room temperature, with lithium metal used as the counter and reference electrode. The best electrochemical storage value was obtained with the thin film annealed at 300°C, which showed superior capacity and small capacity loss during cycling.

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“…Generally, the capacity fading was reported upon cycling for vanadium-based cathode materials. For [19,[36][37][38][39][40]. The fast capacity fading upon cycling was mainly attributed to the decrease of lithium ion diffusion coefficient, low conductivity, and structural collapse, which impedes the potential applications [41][42][43].…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Shreenivasa

R.T²,

Viswanatha³

et al. 2020

Ionics

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The search of new multifunctional cathode materials, with new crystal structures and compositions, for lithium ion battery is extremely important to mitigate the drawbacks associated with the current electrode materials used in rechargeable lithium ion batteries. In this paper, orthovanadate family CrVO 4 has been identified and investigated as a new cathode material for high-rate and high-capacity lithium ion battery for the first time. A solution-based effective and versatile synthetic protocol has been proposed to synthesize CrVO 4 nanoparticles. Physical characterizations reveal that the prepared CrVO 4 consists of uniform and discreet nanoparticles of crystallite size~19 nm with widespread pore diameter, enhanced conductivity and surface area. The prepared CrVO 4 nanoparticles have been evaluated as a potential cathode material for lithium ion batteries, wherein the experimental results demonstrate enhanced lithium storage with high rate-capability and cyclability. The experimental results reveal that the proposed CrVO 4 is working through a partial conversion reaction mechanism.

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'Chimie douce' synthesis and electrochemical properties of amorphous and crystallized LiNiVO4 vs. Li

Cited by 55 publications

References 10 publications

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Structural and electrochemical studies of annealed LiNiVO₄ thin films

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

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'Chimie douce' synthesis and electrochemical properties of amorphous and crystallized LiNiVO4 vs. Li

Cited by 55 publications

References 10 publications

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Relative stability of normal vs. inverse spinel for 3d transition metal oxides as lithium intercalation cathodes

Structural and electrochemical studies of annealed LiNiVO4 thin films

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

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Structural and electrochemical studies of annealed LiNiVO₄ thin films