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Issue 1, 2015
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Non-aqueous electrolytes for sodium-ion batteries

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The first review of the various electrolytes currently used and developed for sodium-ion batteries (SIBs), both in terms of materials and concepts, is presented. In contrast to the Li-ion battery (LIB), which is a mature technology for which a more or less unanimously accepted “standard electrolyte” exists: 1 M LiPF6 in EC/DMC, the electrolyte of choice for SIBs has not yet fully conformed to a standard. This is true for both materials: salts, solvents, or additives, and concept, using the main track of organic solvents or aiming for other concepts. SIB research currently prospers, benefitting from using know-how gained from 30 years of LIB R&D. Here the currently employed electrolytes are emphasized and their effects on practical SIB performance are outlined, scrutinizing the rationale for specific choices made, salts, solvents, additives, concentrations, etc. for each specific cell set-up and usage conditions.

Graphical abstract: Non-aqueous electrolytes for sodium-ion batteries

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The article was received on 27 Aug 2014, accepted on 16 Oct 2014 and first published on 16 Oct 2014

Article type: Review Article
DOI: 10.1039/C4TA04428B
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Citation: J. Mater. Chem. A, 2015,3, 22-42
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    Non-aqueous electrolytes for sodium-ion batteries

    A. Ponrouch, D. Monti, A. Boschin, B. Steen, P. Johansson and M. R. Palacín, J. Mater. Chem. A, 2015, 3, 22
    DOI: 10.1039/C4TA04428B

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