Title
Origin of fast charging in hard carbon anodes
Author
Vasileiadis, A. (TU Delft RST/Storage of Electrochemical Energy) 
Zhou, Quan (Chinese Academy of Sciences; HiNa Battery Technology, Beijing)
Lu, Yaxiang (Chinese Academy of Sciences)
Li, Yu (Chinese Academy of Sciences; University of Chinese Academy of Sciences)
Ombrini, P. (TU Delft RST/Storage of Electrochemical Energy)
Chen, Zhao (Chinese Academy of Sciences; University of Chinese Academy of Sciences)
van der Jagt, R. (TU Delft RST/Storage of Electrochemical Energy)
Ganapathy, S. (TU Delft RID/TS/Instrumenten groep)
Wagemaker, M. (TU Delft RST/Storage of Electrochemical Energy)
Date
2024
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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http://resolver.tudelft.nl/uuid:e5bdaf21-e7ab-4694-abe2-e57f7412360a
DOI
https://doi.org/10.1038/s41560-023-01414-5
Embargo date
2024-07-03
ISSN
2058-7546
Source
Nature Energy, 9 (2), 134-142
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.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2024 A. Vasileiadis, Quan Zhou, Yaxiang Lu, Yu Li, P. Ombrini, Zhao Chen, R. van der Jagt, S. Ganapathy, M. Wagemaker, More Authors