Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode

Wenchao Zhang; Jianfeng Mao; Sean Li; Zhixin Chen; Zaiping Guo

doi:10.1021/jacs.6b12185

Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode

Wenchao Zhang
, Jianfeng Mao
, Sean Li
, Zhixin Chen^*
, Zaiping Guo

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

811 Citations (Scopus)

Abstract

Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn₄P₃/C composite as a novel anode material for PIBs. The electrode delivered a reversible capacity of 384.8 mA h g^-1 at 50 mA g^-1 and a good rate capability of 221.9 mA h g^-1, even at 1 A g^-1. Its electrochemical performance is better than any anode material reported so far for PIBs. It was also found that the Sn₄P₃/C electrode displays a discharge potential plateau of 0.1 V in PIBs, slightly higher than for sodium-ion batteries (SIBs) (0.01 V), and well above the plating potential of metal. This diminishes the formation of dendrites during cycling, and thus Sn₄P₃ is a relatively safe anode material, especially for application in large-scale energy storage, where large amounts of electrode materials are used. Furthermore, a possible reaction mechanism of the Sn₄P₃/C composite as PIB anode is proposed. This work may open up a new avenue for further development of alloy-based anodes with high capacity and long cycle life for PIBs. © 2017 American Chemical Society.

Original language	English
Pages (from-to)	3316-3319
Journal	Journal of the American Chemical Society
Volume	139
Issue number	9
DOIs	https://doi.org/10.1021/jacs.6b12185
Publication status	Published - 8 Mar 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The authors acknowledge the financial support from the Australian Research Council (ARC) through an ARC Discovery Project (DP170102406) and the facilities in the Electron Microscopy Centre of the University of Wollongong (UOW), with special thanks to Dr. Wei Kong Pang for the analysis of exsitu XRD results, Ms. Yajie Liu for Raman tests and Dr. Tania Silver for editing. Wenchao Zhang thanks the UOW and Engineering Materials Institute of UOW for financial support.

UN SDGs

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

SDG 7 Affordable and Clean Energy

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title = "Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode",

abstract = "Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn4P3/C composite as a novel anode material for PIBs. The electrode delivered a reversible capacity of 384.8 mA h g-1 at 50 mA g-1 and a good rate capability of 221.9 mA h g-1, even at 1 A g-1. Its electrochemical performance is better than any anode material reported so far for PIBs. It was also found that the Sn4P3/C electrode displays a discharge potential plateau of 0.1 V in PIBs, slightly higher than for sodium-ion batteries (SIBs) (0.01 V), and well above the plating potential of metal. This diminishes the formation of dendrites during cycling, and thus Sn4P3 is a relatively safe anode material, especially for application in large-scale energy storage, where large amounts of electrode materials are used. Furthermore, a possible reaction mechanism of the Sn4P3/C composite as PIB anode is proposed. This work may open up a new avenue for further development of alloy-based anodes with high capacity and long cycle life for PIBs. {\textcopyright} 2017 American Chemical Society.",

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AU - Chen, Zhixin

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N2 - Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn4P3/C composite as a novel anode material for PIBs. The electrode delivered a reversible capacity of 384.8 mA h g-1 at 50 mA g-1 and a good rate capability of 221.9 mA h g-1, even at 1 A g-1. Its electrochemical performance is better than any anode material reported so far for PIBs. It was also found that the Sn4P3/C electrode displays a discharge potential plateau of 0.1 V in PIBs, slightly higher than for sodium-ion batteries (SIBs) (0.01 V), and well above the plating potential of metal. This diminishes the formation of dendrites during cycling, and thus Sn4P3 is a relatively safe anode material, especially for application in large-scale energy storage, where large amounts of electrode materials are used. Furthermore, a possible reaction mechanism of the Sn4P3/C composite as PIB anode is proposed. This work may open up a new avenue for further development of alloy-based anodes with high capacity and long cycle life for PIBs. © 2017 American Chemical Society.

AB - Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn4P3/C composite as a novel anode material for PIBs. The electrode delivered a reversible capacity of 384.8 mA h g-1 at 50 mA g-1 and a good rate capability of 221.9 mA h g-1, even at 1 A g-1. Its electrochemical performance is better than any anode material reported so far for PIBs. It was also found that the Sn4P3/C electrode displays a discharge potential plateau of 0.1 V in PIBs, slightly higher than for sodium-ion batteries (SIBs) (0.01 V), and well above the plating potential of metal. This diminishes the formation of dendrites during cycling, and thus Sn4P3 is a relatively safe anode material, especially for application in large-scale energy storage, where large amounts of electrode materials are used. Furthermore, a possible reaction mechanism of the Sn4P3/C composite as PIB anode is proposed. This work may open up a new avenue for further development of alloy-based anodes with high capacity and long cycle life for PIBs. © 2017 American Chemical Society.

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Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode

Abstract

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