A polyoxometalate redox flow battery: Functionality and upscale

Jochen Friedl; Felix L. Pfanschilling; Matthäa V. Holland-Cunz; Robert Fleck; Barbara Schricker; Holger Wolfschmidt; Ulrich Stimming

doi:10.1093/ce/zkz019

A polyoxometalate redox flow battery: Functionality and upscale

Jochen Friedl, Felix L. Pfanschilling, Matthäa V. Holland-Cunz, Robert Fleck, Barbara Schricker, Holger Wolfschmidt, Ulrich Stimming

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

19 Scopus citations

Abstract

While redox flow batteries carry a large potential for electricity storage, specifically for regenerative energies, the current technology-prone system-the all-vanadium redox flow battery-exhibits two major disadvantages: low energy and low power densities. Polyoxometalates have the potential to mitigate both effects. In this publication, the operation of a polyoxometalate redox flow battery was demonstrated for the polyoxoanions [SiW₁₂O₄₀]^4- (SiW₁₂) in the anolyte and [PV₁₄O₄₂]^9- (PV₁₄) in the catholyte. Emphasis was laid on comparing to which extent an upscale from 25 to 1400 cm² membrane area may impede efficiency and operational parameters. Results demonstrated that the operation of the large cell for close to 3 months did not diminish operation and the stability of polyoxometalates was unaltered.

Original language	English
Pages (from-to)	278-287
Number of pages	10
Journal	Clean Energy
Volume	3
Issue number	4
DOIs	https://doi.org/10.1093/ce/zkz019
State	Published - 6 Dec 2019
Externally published	Yes

Keywords

energy storage
polyoxometalates
redox flow battery
upscale

UN SDGs

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

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10.1093/ce/zkz019

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title = "A polyoxometalate redox flow battery: Functionality and upscale",

abstract = "While redox flow batteries carry a large potential for electricity storage, specifically for regenerative energies, the current technology-prone system-the all-vanadium redox flow battery-exhibits two major disadvantages: low energy and low power densities. Polyoxometalates have the potential to mitigate both effects. In this publication, the operation of a polyoxometalate redox flow battery was demonstrated for the polyoxoanions [SiW12O40]4- (SiW12) in the anolyte and [PV14O42]9- (PV14) in the catholyte. Emphasis was laid on comparing to which extent an upscale from 25 to 1400 cm2 membrane area may impede efficiency and operational parameters. Results demonstrated that the operation of the large cell for close to 3 months did not diminish operation and the stability of polyoxometalates was unaltered.",

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T2 - Functionality and upscale

AU - Friedl, Jochen

AU - Pfanschilling, Felix L.

AU - Holland-Cunz, Matthäa V.

AU - Fleck, Robert

AU - Schricker, Barbara

AU - Wolfschmidt, Holger

AU - Stimming, Ulrich

PY - 2019/12/6

Y1 - 2019/12/6

N2 - While redox flow batteries carry a large potential for electricity storage, specifically for regenerative energies, the current technology-prone system-the all-vanadium redox flow battery-exhibits two major disadvantages: low energy and low power densities. Polyoxometalates have the potential to mitigate both effects. In this publication, the operation of a polyoxometalate redox flow battery was demonstrated for the polyoxoanions [SiW12O40]4- (SiW12) in the anolyte and [PV14O42]9- (PV14) in the catholyte. Emphasis was laid on comparing to which extent an upscale from 25 to 1400 cm2 membrane area may impede efficiency and operational parameters. Results demonstrated that the operation of the large cell for close to 3 months did not diminish operation and the stability of polyoxometalates was unaltered.

AB - While redox flow batteries carry a large potential for electricity storage, specifically for regenerative energies, the current technology-prone system-the all-vanadium redox flow battery-exhibits two major disadvantages: low energy and low power densities. Polyoxometalates have the potential to mitigate both effects. In this publication, the operation of a polyoxometalate redox flow battery was demonstrated for the polyoxoanions [SiW12O40]4- (SiW12) in the anolyte and [PV14O42]9- (PV14) in the catholyte. Emphasis was laid on comparing to which extent an upscale from 25 to 1400 cm2 membrane area may impede efficiency and operational parameters. Results demonstrated that the operation of the large cell for close to 3 months did not diminish operation and the stability of polyoxometalates was unaltered.

KW - energy storage

KW - polyoxometalates

KW - redox flow battery

KW - upscale

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JO - Clean Energy

JF - Clean Energy

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ER -

A polyoxometalate redox flow battery: Functionality and upscale

Abstract

Keywords

UN SDGs

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