Origin of fast charging in hard carbon anodes

Alexandros Vasileiadis; Quan Zhou; Yaxiang Lu; Yu Li; Pierfrancesco Ombrini; Zhao Chen; Remco van der Jagt; Swapna Ganapathy; Marnix Wagemaker; null More Authors

doi:10.1038/s41560-023-01414-5

Origin of fast charging in hard carbon anodes

Alexandros Vasileiadis, Quan Zhou, Yaxiang Lu^*, Yu Li, Pierfrancesco Ombrini, Zhao Chen, Remco van der Jagt, Swapna Ganapathy, Marnix Wagemaker^*, More Authors

^*Corresponding author for this work

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

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Abstract

Transport electrification and grid storage hinge largely on fast-charging capabilities of Li- and Na-ion batteries, but anodes such as graphite with plating issues drive the scientific focus towards anodes with slopped storage potentials. Here we report fast charging of ampere-hour-level full Na-ion batteries within about 9 minutes for continuous 3,000 cycles based on hard carbon anodes. These anodes, in addition to displaying a sloped storage voltage, provide capacity at a nearly constant voltage just above the plating potential, without observing Na-metal plating under high areal capacity. Comparing the electrochemical behaviour of Li and Na in hard carbon through experimental and computational techniques, a unified storage mechanism relying on the dimensions of wedge nanopores and drawing parallels with underpotential deposition for metals is brought forward, providing a rational guide for achieving fast storage in hard carbon anodes.

Original language	English
Pages (from-to)	134-142
Number of pages	9
Journal	Nature Energy
Volume	9
Issue number	2
DOIs	https://doi.org/10.1038/s41560-023-01414-5
Publication status	Accepted/In press - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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10.1038/s41560-023-01414-5

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abstract = "Transport electrification and grid storage hinge largely on fast-charging capabilities of Li- and Na-ion batteries, but anodes such as graphite with plating issues drive the scientific focus towards anodes with slopped storage potentials. Here we report fast charging of ampere-hour-level full Na-ion batteries within about 9 minutes for continuous 3,000 cycles based on hard carbon anodes. These anodes, in addition to displaying a sloped storage voltage, provide capacity at a nearly constant voltage just above the plating potential, without observing Na-metal plating under high areal capacity. Comparing the electrochemical behaviour of Li and Na in hard carbon through experimental and computational techniques, a unified storage mechanism relying on the dimensions of wedge nanopores and drawing parallels with underpotential deposition for metals is brought forward, providing a rational guide for achieving fast storage in hard carbon anodes.",

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AU - Vasileiadis, Alexandros

AU - Zhou, Quan

AU - Lu, Yaxiang

AU - Li, Yu

AU - Ombrini, Pierfrancesco

AU - Chen, Zhao

AU - van der Jagt, Remco

AU - Ganapathy, Swapna

AU - Wagemaker, Marnix

AU - More Authors, null

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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AB - Transport electrification and grid storage hinge largely on fast-charging capabilities of Li- and Na-ion batteries, but anodes such as graphite with plating issues drive the scientific focus towards anodes with slopped storage potentials. Here we report fast charging of ampere-hour-level full Na-ion batteries within about 9 minutes for continuous 3,000 cycles based on hard carbon anodes. These anodes, in addition to displaying a sloped storage voltage, provide capacity at a nearly constant voltage just above the plating potential, without observing Na-metal plating under high areal capacity. Comparing the electrochemical behaviour of Li and Na in hard carbon through experimental and computational techniques, a unified storage mechanism relying on the dimensions of wedge nanopores and drawing parallels with underpotential deposition for metals is brought forward, providing a rational guide for achieving fast storage in hard carbon anodes.

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Origin of fast charging in hard carbon anodes

Abstract

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Correction to: Origin of fast charging in hard carbon anodes (Nature Energy, (2024), 9, 2, (134-142), 10.1038/s41560-023-01414-5)

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