Directing High-Efficiency Na Plating with Carbon-Aluminum Junction Interfaces for Anode-Free Na Metal Batteries

Olusola John Dahunsi; Bomin Li; Bowen An; Iddrisu B. Abdul Razak; Fan Xia; Siyuan Gao; Junzheng Chen; Guosheng Li; Yingwen Cheng

doi:10.1021/acs.energyfuels.3c00891

Directing High-Efficiency Na Plating with Carbon-Aluminum Junction Interfaces for Anode-Free Na Metal Batteries

Olusola John Dahunsi, Bomin Li, Bowen An, Iddrisu B. Abdul Razak, Fan Xia, Siyuan Gao, Junzheng Chen, Guosheng Li, Yingwen Cheng

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

5 Scopus citations

Abstract

Anode-free sodium metal batteries are highly promising for future energy storage but suffer from much faster cycling degradation as they are sensitive to even trace levels of irreversible side reactions. This work focuses on the most practical Al foil current collectors and systematically examined the effect of nanosized carbon coating on improving the Na plating and stripping stability. We identified that the carbon-Al junction interface generated by carbon coating enabled more uniform Na deposition with lower overpotentials, delivering higher than 99.8% Faradaic efficiencies for a wide range of cycling currents between 0.5 and 3.0 mA cm^-2. This performance is much better than the 96.4% efficiency observed on uncoated Al foils under the same conditions and is also confirmed under lean electrolyte and freezing electrolyte conditions and can be attributed to the stronger interfacial binding and enhanced sodiophilic properties of the carbon-aluminum junction sites. These sites not only ensure uniform Na plating but also eliminates side reactions that would otherwise cause electrolyte depletion. As a result, Na-metal free full cells assembled with a high capacity Na₃V₂(PO₄)₃ cathode delivered ∼93% capacity retention for 100 cycles, higher than the ∼42% of retention of uncoated Al foil.

Original language	English
Pages (from-to)	7522-7529
Number of pages	8
Journal	Energy and Fuels
Volume	37
Issue number	10
DOIs	https://doi.org/10.1021/acs.energyfuels.3c00891
State	Published - May 18 2023
Externally published	Yes

Funding

This work was supported by startup funds from Northern Illinois University. G.L. acknowledges the support from the U.S. Department of Energy (DOE), Office of Electricity through Pacific Northwest National Laboratory (#70247). Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract no. DE-AC02-06CH11357.

Funders	Funder number
U.S. Department of Energy
Office of Science
Northern Illinois University
Office of Electricity
Pacific Northwest National Laboratory	70247
Pacific Northwest National Laboratory
Basic Energy Sciences	DE-AC02-06CH11357
Basic Energy Sciences

UN SDGs

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

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10.1021/acs.energyfuels.3c00891

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title = "Directing High-Efficiency Na Plating with Carbon-Aluminum Junction Interfaces for Anode-Free Na Metal Batteries",

abstract = "Anode-free sodium metal batteries are highly promising for future energy storage but suffer from much faster cycling degradation as they are sensitive to even trace levels of irreversible side reactions. This work focuses on the most practical Al foil current collectors and systematically examined the effect of nanosized carbon coating on improving the Na plating and stripping stability. We identified that the carbon-Al junction interface generated by carbon coating enabled more uniform Na deposition with lower overpotentials, delivering higher than 99.8% Faradaic efficiencies for a wide range of cycling currents between 0.5 and 3.0 mA cm-2. This performance is much better than the 96.4% efficiency observed on uncoated Al foils under the same conditions and is also confirmed under lean electrolyte and freezing electrolyte conditions and can be attributed to the stronger interfacial binding and enhanced sodiophilic properties of the carbon-aluminum junction sites. These sites not only ensure uniform Na plating but also eliminates side reactions that would otherwise cause electrolyte depletion. As a result, Na-metal free full cells assembled with a high capacity Na3V2(PO4)3 cathode delivered ∼93% capacity retention for 100 cycles, higher than the ∼42% of retention of uncoated Al foil.",

author = "Dahunsi, {Olusola John} and Bomin Li and Bowen An and {Abdul Razak}, {Iddrisu B.} and Fan Xia and Siyuan Gao and Junzheng Chen and Guosheng Li and Yingwen Cheng",

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AU - Li, Bomin

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AU - Abdul Razak, Iddrisu B.

AU - Xia, Fan

AU - Gao, Siyuan

AU - Chen, Junzheng

AU - Li, Guosheng

AU - Cheng, Yingwen

PY - 2023/5/18

Y1 - 2023/5/18

N2 - Anode-free sodium metal batteries are highly promising for future energy storage but suffer from much faster cycling degradation as they are sensitive to even trace levels of irreversible side reactions. This work focuses on the most practical Al foil current collectors and systematically examined the effect of nanosized carbon coating on improving the Na plating and stripping stability. We identified that the carbon-Al junction interface generated by carbon coating enabled more uniform Na deposition with lower overpotentials, delivering higher than 99.8% Faradaic efficiencies for a wide range of cycling currents between 0.5 and 3.0 mA cm-2. This performance is much better than the 96.4% efficiency observed on uncoated Al foils under the same conditions and is also confirmed under lean electrolyte and freezing electrolyte conditions and can be attributed to the stronger interfacial binding and enhanced sodiophilic properties of the carbon-aluminum junction sites. These sites not only ensure uniform Na plating but also eliminates side reactions that would otherwise cause electrolyte depletion. As a result, Na-metal free full cells assembled with a high capacity Na3V2(PO4)3 cathode delivered ∼93% capacity retention for 100 cycles, higher than the ∼42% of retention of uncoated Al foil.

AB - Anode-free sodium metal batteries are highly promising for future energy storage but suffer from much faster cycling degradation as they are sensitive to even trace levels of irreversible side reactions. This work focuses on the most practical Al foil current collectors and systematically examined the effect of nanosized carbon coating on improving the Na plating and stripping stability. We identified that the carbon-Al junction interface generated by carbon coating enabled more uniform Na deposition with lower overpotentials, delivering higher than 99.8% Faradaic efficiencies for a wide range of cycling currents between 0.5 and 3.0 mA cm-2. This performance is much better than the 96.4% efficiency observed on uncoated Al foils under the same conditions and is also confirmed under lean electrolyte and freezing electrolyte conditions and can be attributed to the stronger interfacial binding and enhanced sodiophilic properties of the carbon-aluminum junction sites. These sites not only ensure uniform Na plating but also eliminates side reactions that would otherwise cause electrolyte depletion. As a result, Na-metal free full cells assembled with a high capacity Na3V2(PO4)3 cathode delivered ∼93% capacity retention for 100 cycles, higher than the ∼42% of retention of uncoated Al foil.

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Directing High-Efficiency Na Plating with Carbon-Aluminum Junction Interfaces for Anode-Free Na Metal Batteries

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UN SDGs

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