Implications of Na-ion solvation on Na anode–electrolyte interphase

Implications of Na-ion solvation on Na anode–electrolyte interphase

Trends in Chemistry

10.1016/j.trechm.2021.11.002

http://dx.doi.org/10.1016/j.trechm.2021.11.002

S.K. Vineeth, Chhail Bihari Soni, Yongming Sun, Vipin Kumar, Zhi Wei Seh

General Chemistry

26 November 2021

Vineeth, S. K., Soni, C. B., Sun, Y., Kumar, V., & Seh, Z. W. (2022). Implications of Na-ion solvation on Na anode–electrolyte interphase. Trends in Chemistry, 4(1), 48–59. https://doi.org/10.1016/j.trechm.2021.11.002

Sodium-metal anode battery technologies have revolutionized energy storage research. In recent years, new insights have been gained regarding the solid electrolyte interphase (SEI) on a sodium-metal anode; however, several questions remain to be answered, in particular the impact of electrolyte structure on the composition and physicochemical stability of the SEI. In addition, the impact of ion-solvation chemistry on the crystallinity of the SEI warrants a more detailed understanding. This review discusses the crucial aspects of sodium-ion solvation chemistry and its impact on the stability of the SEI. The core principles guiding the design of electrolytes through additives, ion–solvent interaction, and ion-pair formation are highlighted. Future research directions necessary to design a stable sodium-metal anode are also discussed.

Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

This research / project is supported by the Singapore National Research Foundation - NRF Fellowship
Grant Reference no. : NRF-NRFF2017-04

https://oar.a-star.edu.sg/communities-collections/articles/18260

2589-5974

Institute of Materials Research and Engineering