Biomass carbon-reinforced zinc-based composite oxide as an anode for superior sodium storage

Yongmei Sun; Mei Ma; Binhao Yu; Chaoyun Song; Qingwen Fan; Peng Fu

doi:10.1016/j.jallcom.2024.174216

Biomass carbon-reinforced zinc-based composite oxide as an anode for superior sodium storage

Yongmei Sun, Mei Ma^*, Binhao Yu, Chaoyun Song, Qingwen Fan, Peng Fu

^*Corresponding author for this work

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

Abstract

The pursuit of high-abundance, cost-effective sodium-ion batteries represents a longstanding and valuable objective in the field. However, significant challenges remain in the quest for breakthroughs, particularly in the discovery of high-performance anode materials and a deeper understanding of the sodium storage mechanism. In this study, we present novel insights into the sodium storage properties of biomass carbon-reinforced Zn₂P₂O₇ (Zn₂P₂O₇/C-c) synthesized via a hydrothermal method followed by annealing, marking the first report of its kind. The unique loose porous structure of the Zn₂P₂O₇/C-c composite offers multiple advantages. It facilitates efficient electrolyte infiltration, enhances the diffusion pathways for sodium ions, expedites electron transfer, and crucially, promotes the retention of Zn₂P₂O₇ on the carbon substrate, even under conditions of mechanical stress or pulverization. Consequently, the Zn₂P₂O₇/C-c composite demonstrates significantly improved rate capability, exhibiting specific capacities of 276.11, 234.41, 195.28, and 149.56 mA h g⁻¹ at current densities of 0.2, 0.5, 1, and 2 A g⁻¹, respectively. Furthermore, it exhibits exceptional cyclic stability with a capacity retention rate of 71% after 1000 charge-discharge cycles at 1 A g⁻¹. In-depth in-situ/ex-situ characterization techniques confirm that the sodium storage mechanism involves a conversion reaction between Zn₂P₂O₇ and Zn, as well as an alloying reaction between Zn and ZnNa₁₃. Kinetic analysis underscores the predominant role of pseudocapacitance in facilitating sodium storage, particularly at high charge-discharge rates. These findings offer valuable insights and inspiration for the exploration of high-performance Zn₂P₂O₇-based anode materials for sodium-ion batteries, representing a significant step toward the realization of cost-effective and efficient sodium-ion battery technology in the future.

Original language	English
Article number	174216
Journal	JOURNAL OF ALLOYS AND COMPOUNDS
Volume	987
DOIs	https://doi.org/10.1016/j.jallcom.2024.174216
Publication status	Published - 5 Jun 2024

Keywords

Anode
Biomass carbon
Loose layered porous structure
Sodium-ion batteries
ZnPO

UN SDGs

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

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10.1016/j.jallcom.2024.174216

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title = "Biomass carbon-reinforced zinc-based composite oxide as an anode for superior sodium storage",

abstract = "The pursuit of high-abundance, cost-effective sodium-ion batteries represents a longstanding and valuable objective in the field. However, significant challenges remain in the quest for breakthroughs, particularly in the discovery of high-performance anode materials and a deeper understanding of the sodium storage mechanism. In this study, we present novel insights into the sodium storage properties of biomass carbon-reinforced Zn2P2O7 (Zn2P2O7/C-c) synthesized via a hydrothermal method followed by annealing, marking the first report of its kind. The unique loose porous structure of the Zn2P2O7/C-c composite offers multiple advantages. It facilitates efficient electrolyte infiltration, enhances the diffusion pathways for sodium ions, expedites electron transfer, and crucially, promotes the retention of Zn2P2O7 on the carbon substrate, even under conditions of mechanical stress or pulverization. Consequently, the Zn2P2O7/C-c composite demonstrates significantly improved rate capability, exhibiting specific capacities of 276.11, 234.41, 195.28, and 149.56 mA h g−1 at current densities of 0.2, 0.5, 1, and 2 A g−1, respectively. Furthermore, it exhibits exceptional cyclic stability with a capacity retention rate of 71% after 1000 charge-discharge cycles at 1 A g−1. In-depth in-situ/ex-situ characterization techniques confirm that the sodium storage mechanism involves a conversion reaction between Zn2P2O7 and Zn, as well as an alloying reaction between Zn and ZnNa13. Kinetic analysis underscores the predominant role of pseudocapacitance in facilitating sodium storage, particularly at high charge-discharge rates. These findings offer valuable insights and inspiration for the exploration of high-performance Zn2P2O7-based anode materials for sodium-ion batteries, representing a significant step toward the realization of cost-effective and efficient sodium-ion battery technology in the future.",

keywords = "Anode, Biomass carbon, Loose layered porous structure, Sodium-ion batteries, ZnPO",

author = "Yongmei Sun and Mei Ma and Binhao Yu and Chaoyun Song and Qingwen Fan and Peng Fu",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

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doi = "10.1016/j.jallcom.2024.174216",

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T1 - Biomass carbon-reinforced zinc-based composite oxide as an anode for superior sodium storage

AU - Sun, Yongmei

AU - Ma, Mei

AU - Yu, Binhao

AU - Song, Chaoyun

AU - Fan, Qingwen

AU - Fu, Peng

PY - 2024/6/5

Y1 - 2024/6/5

N2 - The pursuit of high-abundance, cost-effective sodium-ion batteries represents a longstanding and valuable objective in the field. However, significant challenges remain in the quest for breakthroughs, particularly in the discovery of high-performance anode materials and a deeper understanding of the sodium storage mechanism. In this study, we present novel insights into the sodium storage properties of biomass carbon-reinforced Zn2P2O7 (Zn2P2O7/C-c) synthesized via a hydrothermal method followed by annealing, marking the first report of its kind. The unique loose porous structure of the Zn2P2O7/C-c composite offers multiple advantages. It facilitates efficient electrolyte infiltration, enhances the diffusion pathways for sodium ions, expedites electron transfer, and crucially, promotes the retention of Zn2P2O7 on the carbon substrate, even under conditions of mechanical stress or pulverization. Consequently, the Zn2P2O7/C-c composite demonstrates significantly improved rate capability, exhibiting specific capacities of 276.11, 234.41, 195.28, and 149.56 mA h g−1 at current densities of 0.2, 0.5, 1, and 2 A g−1, respectively. Furthermore, it exhibits exceptional cyclic stability with a capacity retention rate of 71% after 1000 charge-discharge cycles at 1 A g−1. In-depth in-situ/ex-situ characterization techniques confirm that the sodium storage mechanism involves a conversion reaction between Zn2P2O7 and Zn, as well as an alloying reaction between Zn and ZnNa13. Kinetic analysis underscores the predominant role of pseudocapacitance in facilitating sodium storage, particularly at high charge-discharge rates. These findings offer valuable insights and inspiration for the exploration of high-performance Zn2P2O7-based anode materials for sodium-ion batteries, representing a significant step toward the realization of cost-effective and efficient sodium-ion battery technology in the future.

AB - The pursuit of high-abundance, cost-effective sodium-ion batteries represents a longstanding and valuable objective in the field. However, significant challenges remain in the quest for breakthroughs, particularly in the discovery of high-performance anode materials and a deeper understanding of the sodium storage mechanism. In this study, we present novel insights into the sodium storage properties of biomass carbon-reinforced Zn2P2O7 (Zn2P2O7/C-c) synthesized via a hydrothermal method followed by annealing, marking the first report of its kind. The unique loose porous structure of the Zn2P2O7/C-c composite offers multiple advantages. It facilitates efficient electrolyte infiltration, enhances the diffusion pathways for sodium ions, expedites electron transfer, and crucially, promotes the retention of Zn2P2O7 on the carbon substrate, even under conditions of mechanical stress or pulverization. Consequently, the Zn2P2O7/C-c composite demonstrates significantly improved rate capability, exhibiting specific capacities of 276.11, 234.41, 195.28, and 149.56 mA h g−1 at current densities of 0.2, 0.5, 1, and 2 A g−1, respectively. Furthermore, it exhibits exceptional cyclic stability with a capacity retention rate of 71% after 1000 charge-discharge cycles at 1 A g−1. In-depth in-situ/ex-situ characterization techniques confirm that the sodium storage mechanism involves a conversion reaction between Zn2P2O7 and Zn, as well as an alloying reaction between Zn and ZnNa13. Kinetic analysis underscores the predominant role of pseudocapacitance in facilitating sodium storage, particularly at high charge-discharge rates. These findings offer valuable insights and inspiration for the exploration of high-performance Zn2P2O7-based anode materials for sodium-ion batteries, representing a significant step toward the realization of cost-effective and efficient sodium-ion battery technology in the future.

KW - Anode

KW - Biomass carbon

KW - Loose layered porous structure

KW - Sodium-ion batteries

KW - ZnPO

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DO - 10.1016/j.jallcom.2024.174216

M3 - Article

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SN - 0925-8388

VL - 987

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JF - JOURNAL OF ALLOYS AND COMPOUNDS

M1 - 174216

ER -

Biomass carbon-reinforced zinc-based composite oxide as an anode for superior sodium storage

Abstract

Keywords

UN SDGs

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