Engineering Sodium-Ion Solvation Structure to Stabilize Sodium Anodes: Universal Strategy for Fast-Charging and Safer Sodium-Ion Batteries
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Alshareef et al Na ion solvation structure.pdf
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Type
ArticleAuthors
Zhou, LinCao, Zhen
Zhang, Jiao
Sun, Qujiang
Wu, Yingqiang
Wahyudi, Wandi

Hwang, Jang-Yeon
Wang, Limin

Cavallo, Luigi

Sun, Yang-Kook

Alshareef, Husam N.

Ming, Jun

KAUST Department
Chemical Science ProgramFunctional Nanomaterials and Devices Research Group
KAUST Catalysis Center (KCC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2020-04-22Online Publication Date
2020-04-22Print Publication Date
2020-05-13Embargo End Date
2021-04-22Submitted Date
2019-12-31Permanent link to this record
http://hdl.handle.net/10754/662675
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Show full item recordAbstract
Sodium-ion batteries are promising alternatives for lithium-ion batteries due to their lower cost caused by global sodium availability. However, the low Coulombic efficiency (CE) of the sodium metal plating/stripping process represents a serious issue for the Na anode, which hinders achieving a higher energy density. Herein, we report that the Na+ solvation structure, particularly the type and location of the anions, plays a critical role in determining the Na anode performance. We show that the low CE results from anion-mediated corrosion, which can be tackled readily through tuning the anion interaction at the electrolyte/anode interface. Our strategy thus enables fast-charging Na-ion and Na-S batteries with a remarkable cycle life. The presented insights differ from the prevailing interpretation that the failure mechanism mostly results from sodium dendrite growth and/or solid electrolyte interphase formation. Our anionic model introduces a new guideline for improving the electrolytes for metal-ion batteries with a greater energy density.Citation
Zhou, L., Cao, Z., Zhang, J., Sun, Q., Wu, Y., Wahyudi, W., … Ming, J. (2020). Engineering Sodium-Ion Solvation Structure to Stabilize Sodium Anodes: Universal Strategy for Fast-Charging and Safer Sodium-Ion Batteries. Nano Letters. doi:10.1021/acs.nanolett.9b05355Sponsors
This work is supported by the National Natural Science Foundation of China (21978281 and 21975250) and the National Key R&D Program of China (SQ2017YFE9128100). The authors also thank the Independent Research Project of the State Key Laboratory of Rare Earth Resources Utilization (110005R086), Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. The research was also partially supported by King Abdullah University of Science and Technology (KAUST) and Hanyang University.Publisher
American Chemical Society (ACS)Journal
Nano LettersPubMed ID
32319776Additional Links
https://pubs.acs.org/doi/10.1021/acs.nanolett.9b05355ae974a485f413a2113503eed53cd6c53
10.1021/acs.nanolett.9b05355
Scopus Count
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