Reversible Mg-Ion Insertion in a Metastable One-Dimensional Polymorph of V2O5

Andrews, Justin L.; Mukherjee, Arijita; Yoo, Hyun Deog; Parija, Abhishek; Marley, Peter M.; Fakra, Sirine C.; Prendergast, David; Cabana, Jordi; Klie, Robert F.; Banerjee, Sarbajit

doi:10.1016/j.chempr.2017.12.018

Cited by 137 publications

(185 citation statements)

References 85 publications

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“…A high specific capacity of 90.7 mAh g −1 (99.7% of the initial value) can still be recovered upon a decrease in current density to 50 mA g −1 , indicating the excellent rate performance of the material. Figure b compares the rate performance of AgCl with several traditional layered Mg‐intercalation cathodes as well as conversion‐type CuS . Due to the high activation energy during structure conversion, conversion‐type electrodes usually exhibit inferior performance than intercalation‐type electrodes.…”

Section: Resultsmentioning

confidence: 99%

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A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

Zhang

Shen

et al. 2019

Energy Tech

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Rechargeable Mg batteries are attractive candidates for large‐scale energy storage batteries with high safety due to the low‐cost and non‐dendritic metallic Mg anode. However, exploring high‐performance cathode materials is blocking their development. Herein, a high‐rate rechargeable Mg battery is established with a AgCl cathode, delivering a high reversible capacity of 70.3 mAh g−1 at 100 mA g−1, an outstanding rate capability of 32.6 mAh g−1 at 1000 mA g−1, and a superior long‐term cyclability over 500 cycles. Further investigation of the mechanism demonstrates that a conversion reaction takes place between AgCl and metallic Ag0 for the cathode. The solid‐state Mg2+ diffusion coefficient is as high as 8.1 × 10−11 cm2 s−1, which would be the reason for the high rate capability. The current study reveals significant insights to select promising Mg‐storage conversion cathodes by a combination of soft anions and soft transition‐metal cations.

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Section: Resultsmentioning

confidence: 99%

“…a) Rate performance of AgCl cathode at different current densities and b) comparison with reported Mg cathode materials . c) Long‐term cycling performance of AgCl electrode in Mg cells at a current density of 500 mA g −1 .…”

Section: Resultsmentioning

confidence: 99%

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

Zhang

Shen

et al. 2019

Energy Tech

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“…For V2O5 aerogel, the uptake of 4 mol of Mg 2+ per mol V2O5 was demonstrated in a chemical magnesiation test 19 . In the past ten years, a lot of work 17,[20][21][22][23][24][25][26][27][28] has been done on the V2O5 as cathode materials for MIBs. However, up to now, only limited capacities have been achieved for this kind of cathode material in electrochemical cells with a Mg electrolyte.…”

Section: Introductionmentioning

confidence: 99%

In Operando Synchrotron Diffraction and in Operando X-ray Absorption Spectroscopy Investigations of Orthorhombic V₂O₅ Nanowires as Cathode Materials for Mg-Ion Batteries

Sarapulova

Trouillet

et al. 2019

J. Am. Chem. Soc.

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Orthorhombic V2O5 nanowires were successfully synthesized via a hydrothermal method. A cellconfiguration system was built utilizing V2O5 as the cathode and 1 M Mg(ClO4)2 electrolyte within acetonitrile, together with MgxMo6S8 (x ≈ 2) as the anode to investigate the structural evolution and oxidation state and local structural changes of V2O5. The V2O5 nanowires deliver an initial discharge/charge capacity of 103 mAh g-1 /110 mAh g-1 and the highest discharge capacity of 130 mAh g-1 in the 6 th cycle at C/20 rate in the cell-configuration system. In operando synchrotron diffraction and in operando X-ray absorption spectroscopy together with ex situ Raman and X-ray photoelectron spectroscopy reveal the reversibility of magnesium insertion/extraction and provide the information on the crystal structure evolution and changes of the oxidation states during cycling.

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“…6 Frustrated coordination has to date predominantly been identied as a property of metastable polymorphs, 47 such as Mn 2 O 4 spinel. 50 A further example is the metastable tunnel bronze z-V 2 O 5 phase, which has been demonstrated as a viable Mg ion cathode material, 58 and is predicted by DFT calculations to have low activation barriers (620-860 meV) for Mg mobility. 46 In fact it has been suggested that insertion of multivalent ions into frustrated coordination sites 'almost certainly' requires a structure that is thermodynamically metastable.…”

Section: Discussion: the Role Of Frustrationmentioning

confidence: 99%

Mg²⁺storage and mobility in anatase TiO₂: the role of frustrated coordination

McColl

Corà

2019

J. Mater. Chem. A

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Reversible Mg-Ion Insertion in a Metastable One-Dimensional Polymorph of V2O5

Cited by 137 publications

References 85 publications

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

In Operando Synchrotron Diffraction and in Operando X-ray Absorption Spectroscopy Investigations of Orthorhombic V₂O₅ Nanowires as Cathode Materials for Mg-Ion Batteries

Mg²⁺storage and mobility in anatase TiO₂: the role of frustrated coordination

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Reversible Mg-Ion Insertion in a Metastable One-Dimensional Polymorph of V2O5

Cited by 137 publications

References 85 publications

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg2+ Diffusion Kinetics

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg2+ Diffusion Kinetics

In Operando Synchrotron Diffraction and in Operando X-ray Absorption Spectroscopy Investigations of Orthorhombic V2O5 Nanowires as Cathode Materials for Mg-Ion Batteries

Mg2+storage and mobility in anatase TiO2: the role of frustrated coordination

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A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

In Operando Synchrotron Diffraction and in Operando X-ray Absorption Spectroscopy Investigations of Orthorhombic V₂O₅ Nanowires as Cathode Materials for Mg-Ion Batteries

Mg²⁺storage and mobility in anatase TiO₂: the role of frustrated coordination