Prototype system of rocking-chair zn-ion battery adopting zinc chevrel phase anode and rhombohedral zinc hexacyanoferrate cathode

Munseok S. Chae; Seung Tae Hong

doi:10.3390/batteries5010003

Prototype system of rocking-chair zn-ion battery adopting zinc chevrel phase anode and rhombohedral zinc hexacyanoferrate cathode

Munseok S. Chae, Seung Tae Hong

Daegu Gyeongbuk Institute of Science and Technology

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

69 Scopus citations

Abstract

Zinc-ion batteries (ZIBs) have received attention as one type of multivalent-ion batteries due to their potential applications in large-scale energy storage systems. Here we report a prototype of rocking-chair ZIB system employing Zn₂Mo₆S₈ (zinc Chevrel phase) as an anode operating at 0.35 V, and K_0.02(H₂O)_0.22Zn_2.94[Fe(CN)₆]₂ (rhombohedral zinc Prussian-blue analogue) as a cathode operating at 1.75 V (vs. Zn/Zn²⁺) in ZnSO₄ aqueous electrolyte. This type of cell has a benefit due to its intrinsic zinc-dendrite-free nature. The cell is designed to be positive-limited with a capacity of 62.3 mAh g⁻¹. The full-cell shows a reversible cycle with an average discharge cell voltage of ~1.40 V, demonstrating a successful rocking-chair zinc-ion battery system.

Original language	English
Article number	3
Journal	Batteries
Volume	5
Issue number	1
DOIs	https://doi.org/10.3390/batteries5010003
State	Published - Mar 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Funding

Funding: This research was supported by the Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2015M3D1A1069707).

Funders	Funder number
Ministry of Science, ICT and Future Planning	2015M3D1A1069707
National Research Foundation of Korea

Keywords

Chevrel phase
Multivalent-ion battery
Prussian blue analogue
Rocking-chair battery
Zinc hexacyanoferrate
Zinc-ion battery

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title = "Prototype system of rocking-chair zn-ion battery adopting zinc chevrel phase anode and rhombohedral zinc hexacyanoferrate cathode",

abstract = "Zinc-ion batteries (ZIBs) have received attention as one type of multivalent-ion batteries due to their potential applications in large-scale energy storage systems. Here we report a prototype of rocking-chair ZIB system employing Zn2Mo6S8 (zinc Chevrel phase) as an anode operating at 0.35 V, and K0.02(H2O)0.22Zn2.94[Fe(CN)6]2 (rhombohedral zinc Prussian-blue analogue) as a cathode operating at 1.75 V (vs. Zn/Zn2+) in ZnSO4 aqueous electrolyte. This type of cell has a benefit due to its intrinsic zinc-dendrite-free nature. The cell is designed to be positive-limited with a capacity of 62.3 mAh g−1. The full-cell shows a reversible cycle with an average discharge cell voltage of ~1.40 V, demonstrating a successful rocking-chair zinc-ion battery system.",

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doi = "10.3390/batteries5010003",

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PY - 2019/3

Y1 - 2019/3

N2 - Zinc-ion batteries (ZIBs) have received attention as one type of multivalent-ion batteries due to their potential applications in large-scale energy storage systems. Here we report a prototype of rocking-chair ZIB system employing Zn2Mo6S8 (zinc Chevrel phase) as an anode operating at 0.35 V, and K0.02(H2O)0.22Zn2.94[Fe(CN)6]2 (rhombohedral zinc Prussian-blue analogue) as a cathode operating at 1.75 V (vs. Zn/Zn2+) in ZnSO4 aqueous electrolyte. This type of cell has a benefit due to its intrinsic zinc-dendrite-free nature. The cell is designed to be positive-limited with a capacity of 62.3 mAh g−1. The full-cell shows a reversible cycle with an average discharge cell voltage of ~1.40 V, demonstrating a successful rocking-chair zinc-ion battery system.

AB - Zinc-ion batteries (ZIBs) have received attention as one type of multivalent-ion batteries due to their potential applications in large-scale energy storage systems. Here we report a prototype of rocking-chair ZIB system employing Zn2Mo6S8 (zinc Chevrel phase) as an anode operating at 0.35 V, and K0.02(H2O)0.22Zn2.94[Fe(CN)6]2 (rhombohedral zinc Prussian-blue analogue) as a cathode operating at 1.75 V (vs. Zn/Zn2+) in ZnSO4 aqueous electrolyte. This type of cell has a benefit due to its intrinsic zinc-dendrite-free nature. The cell is designed to be positive-limited with a capacity of 62.3 mAh g−1. The full-cell shows a reversible cycle with an average discharge cell voltage of ~1.40 V, demonstrating a successful rocking-chair zinc-ion battery system.

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KW - Prussian blue analogue

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Prototype system of rocking-chair zn-ion battery adopting zinc chevrel phase anode and rhombohedral zinc hexacyanoferrate cathode

Abstract

Bibliographical note

Funding

Keywords

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