Improving the fast-charging capability of NbWO-based Li-ion batteries

Yaqing Guo, Chi Guo, Penghui Li, Wenjun Song, Weiyuan Huang, Junxin Yan, Xiaobin Liao, Kun He (), Wuxin Sha, Xuemei Zeng, Xinyue Tang, QingQing Ren, Shun Wang, Khalil Amine, Anmin Nie (), Tongchao Liu () and Yifei Yuan ()
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Yaqing Guo: Wenzhou University
Chi Guo: Southeast University
Penghui Li: Yanshan University
Wenjun Song: Wenzhou University
Weiyuan Huang: Argonne National Laboratory
Junxin Yan: Yanshan University
Xiaobin Liao: Wuhan University of Technology
Kun He: Wenzhou University
Wuxin Sha: Huazhong University of Science and Technology
Xuemei Zeng: Wenzhou University
Xinyue Tang: Wenzhou University
QingQing Ren: Wenzhou University
Shun Wang: Wenzhou University
Khalil Amine: Argonne National Laboratory
Anmin Nie: Yanshan University
Tongchao Liu: Argonne National Laboratory
Yifei Yuan: Wenzhou University

Nature Communications, 2025, vol. 16, issue 1, 1-13

Abstract: Abstract The discovery of Nb-W-O materials years ago marks the milestone of charging a lithium-ion battery in minutes. Nevertheless, for many applications, charging lithium-ion battery within one minute is urgently demanded, the bottleneck of which largely lies in the lack of fundamental understanding of Li+ storage mechanisms in these materials. Herein, by visualizing Li+ intercalated into representative Nb16W5O55, we find that the fast-charging nature of such material originates from an interesting rate-dependent lattice relaxation process associated with the Jahn-Teller effect. Furthermore, in situ electron microscopy further reveals a directional, [010]-preferred Li+ transport mechanism in Nb16W5O55 crystals being the “bottleneck” toward fast charging that deprives the entry of any desolvated Li+ through the prevailing non-(010) surfaces. Hence, we propose a machine learning-assisted interface engineering strategy to swiftly collect desolvated Li+ and relocate them to (010) surfaces for their fast intercalation. As a result, a capacity of ≈ 116 mAh g−1 (68.5% of the theoretical capacity) at 80 C (45 s) is achieved when coupled with a Li negative electrode.

Date: 2025
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DOI: 10.1038/s41467-025-57576-1

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