Fast-charge high-voltage layered cathodes for sodium-ion batteries

Wang, Q.; Zhou, Dong; Zhao, C.; Wang, Jianlin; Guo, Hao; Wang, Liguang; Yao, Zhenpeng; Lu, Jun; Wagemaker, M.

doi:10.1038/s41893-024-01266-1

Fast-charge high-voltage layered cathodes for sodium-ion batteries

Title

Fast-charge high-voltage layered cathodes for sodium-ion batteries

Author

Wang, Q. (TU Delft RST/Storage of Electrochemical Energy)
Zhou, Dong (Helmholtz-Zentrum Berlin)
Zhao, C. (TU Delft RST/Storage of Electrochemical Energy)
Wang, Jianlin (Chinese Academy of Sciences)
Guo, Hao (China Institute of Atomic Energy)
Wang, Liguang (Zhejiang University)
Yao, Zhenpeng (Shanghai Jiao Tong University)
Lu, Jun (Zhejiang University)
Wagemaker, M. (TU Delft RST/Storage of Electrochemical Energy)

Date

2024

Abstract

Sodium-ion batteries have not only garnered substantial attention for grid-scale energy storage owing to the higher abundance of sodium compared with lithium, but also present the possibility of fast charging because of the inherently higher sodium-ion mobility. However, it remains a phenomenal challenge to achieve a combination of these merits, given the complex structural chemistry of sodium-ion oxide materials. Here we show that O3-type sodium-ion layered cathodes (for example, Na_5/6Li_2/27Ni_8/27Mn_11/27Ti_6/27O₂) have the potential to attain high power density, high energy density (260 Wh kg⁻¹ at the electrode level) and long cycle life (capacity retention of 80% over 700 cycles in full cells). The design involves introduction of characteristic P3-structural motifs into an O3-type framework that serves to promote sodium-ion diffusivity and address detrimental transition metal migration and phase transition at a high state of charge. This study provides a principle for the rational design of sodium-ion layered oxide electrodes and advances the understanding of the composition–structure–property relationships of oxide cathode materials.

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DOI

https://doi.org/10.1038/s41893-024-01266-1

Embargo date

2024-08-15

Source

Nature Sustainability, 7 (3), 338-347

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

Files

file embargo until 2024-08-15