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Electrolytes and Interphases in Sodium-Based Rechargeable Batteries: Recent Advances and Perspectives

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journal contribution
posted on 26.05.2020, 00:00 authored by G G Eshetu, G A Elia, M Armand, Maria ForsythMaria Forsyth, S Komaba, T Rojo, S Passerini
© 2020 Karlsruher Institut für Technologie. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim For sodium (Na)-rechargeable batteries to compete, and go beyond the currently prevailing Li-ion technologies, mastering the chemistry and accompanying phenomena is of supreme importance. Among the crucial components of the battery system, the electrolyte, which bridges the highly polarized positive and negative electrode materials, is arguably the most critical and indispensable of all. The electrolyte dictates the interfacial chemistry of the battery and the overall performance, having an influence over the practical capacity, rate capability (power), chemical/thermal stress (safety), and lifetime. In-depth knowledge of electrolyte properties provides invaluable information to improve the design, assembly, and operation of the battery. Thus, the full-scale appraisal of both tailored electrolytes and the concomitant interphases generated at the electrodes need to be prioritized. The deployment of large-format Na-based rechargeable batteries also necessitates systematic evaluation and detailed appraisal of the safety-related hazards of Na-based batteries. Hence, this review presents a comprehensive account of the progress, status, and prospect of various Na+-ion electrolytes, including solvents, salts and additives, their interphases and potential hazards.

History

Journal

Advanced Energy Materials

Volume

10

Issue

20

Article number

2000093

Pagination

1 - 41

Publisher

Wiley

Location

London, Eng.

ISSN

1614-6832

eISSN

1614-6840

Language

eng

Publication classification

C1 Refereed article in a scholarly journal