Vanadium-based polyoxometalate as new material for sodium-ion battery anodes

Steffen Hartung; Nicolas Bucher; Han Yi Chen; Rami Al-Oweini; Sivaramapanicker Sreejith; Parijat Borah; Zhao Yanli; Ulrich Kortz; Ulrich Stimming; Harry E. Hoster; Madhavi Srinivasan

doi:10.1016/j.jpowsour.2015.04.009

Vanadium-based polyoxometalate as new material for sodium-ion battery anodes

Steffen Hartung, Nicolas Bucher, Han Yi Chen, Rami Al-Oweini, Sivaramapanicker Sreejith, Parijat Borah, Zhao Yanli, Ulrich Kortz, Ulrich Stimming, Harry E. Hoster, Madhavi Srinivasan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

96 Citations (Scopus)

Abstract

Affordable energy storage is crucial for a variety of technologies. One option is sodium-ion batteries (NIBs) for which, however, suitable anode materials are still a problem. We report on the application of a promising new class of materials, polyoxometalates (POMs), as an anode in NIBs. Specifically, Na₆[V₁₀O₂₈]·16H₂O is being synthesized and characterized. Galvanostatic tests reveal a reversible capacity of approximately 276 mA h g^-1 with an average discharge potential of 0.4 V vs. Na/Na⁺, as well as a high cycling stability. The underlying mechanism is rationalized to be an insertion of Na⁺ in between the [V₁₀O₂₈]^6- anions rather than an intercalation into a crystal structure; the accompanying reduction of V^+V to V^+IV is confirmed by X-ray Photoelectron Spectroscopy. Finally, a working full-cell set-up is presented with the POM as the anode, substantiating the claim that Na₆[V₁₀O₂₈]·16H₂O is a promising option for future high-performing sodium-ion batteries.

Original language	English
Pages (from-to)	270-277
Number of pages	8
Journal	Journal of Power Sources
Volume	288
DOIs	https://doi.org/10.1016/j.jpowsour.2015.04.009
Publication status	Published - Aug 15 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

ASJC Scopus Subject Areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

Cluster electrodes
Hybrid electrode materials
Polyoxometalates
Sodium-ion batteries
Sodium-ion battery anodes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2015.04.009

Cite this

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title = "Vanadium-based polyoxometalate as new material for sodium-ion battery anodes",

abstract = "Affordable energy storage is crucial for a variety of technologies. One option is sodium-ion batteries (NIBs) for which, however, suitable anode materials are still a problem. We report on the application of a promising new class of materials, polyoxometalates (POMs), as an anode in NIBs. Specifically, Na6[V10O28]·16H2O is being synthesized and characterized. Galvanostatic tests reveal a reversible capacity of approximately 276 mA h g-1 with an average discharge potential of 0.4 V vs. Na/Na+, as well as a high cycling stability. The underlying mechanism is rationalized to be an insertion of Na+ in between the [V10O28]6- anions rather than an intercalation into a crystal structure; the accompanying reduction of V+V to V+IV is confirmed by X-ray Photoelectron Spectroscopy. Finally, a working full-cell set-up is presented with the POM as the anode, substantiating the claim that Na6[V10O28]·16H2O is a promising option for future high-performing sodium-ion batteries.",

keywords = "Cluster electrodes, Hybrid electrode materials, Polyoxometalates, Sodium-ion batteries, Sodium-ion battery anodes",

author = "Steffen Hartung and Nicolas Bucher and Chen, \{Han Yi\} and Rami Al-Oweini and Sivaramapanicker Sreejith and Parijat Borah and Zhao Yanli and Ulrich Kortz and Ulrich Stimming and Hoster, \{Harry E.\} and Madhavi Srinivasan",

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doi = "10.1016/j.jpowsour.2015.04.009",

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T1 - Vanadium-based polyoxometalate as new material for sodium-ion battery anodes

AU - Hartung, Steffen

AU - Bucher, Nicolas

AU - Chen, Han Yi

AU - Al-Oweini, Rami

AU - Sreejith, Sivaramapanicker

AU - Borah, Parijat

AU - Yanli, Zhao

AU - Kortz, Ulrich

AU - Stimming, Ulrich

AU - Hoster, Harry E.

AU - Srinivasan, Madhavi

PY - 2015/8/15

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AB - Affordable energy storage is crucial for a variety of technologies. One option is sodium-ion batteries (NIBs) for which, however, suitable anode materials are still a problem. We report on the application of a promising new class of materials, polyoxometalates (POMs), as an anode in NIBs. Specifically, Na6[V10O28]·16H2O is being synthesized and characterized. Galvanostatic tests reveal a reversible capacity of approximately 276 mA h g-1 with an average discharge potential of 0.4 V vs. Na/Na+, as well as a high cycling stability. The underlying mechanism is rationalized to be an insertion of Na+ in between the [V10O28]6- anions rather than an intercalation into a crystal structure; the accompanying reduction of V+V to V+IV is confirmed by X-ray Photoelectron Spectroscopy. Finally, a working full-cell set-up is presented with the POM as the anode, substantiating the claim that Na6[V10O28]·16H2O is a promising option for future high-performing sodium-ion batteries.

KW - Cluster electrodes

KW - Hybrid electrode materials

KW - Polyoxometalates

KW - Sodium-ion batteries

KW - Sodium-ion battery anodes

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Vanadium-based polyoxometalate as new material for sodium-ion battery anodes

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

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