ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

For citation:

Kosova N. V., Rezepova D. O. Sodium-based compounds as hosts for reversible intercalation of lithium ions. Electrochemical Energetics, 2016, vol. 16, iss. 3, pp. 92-99. DOI: 10.18500/1608-4039-2016-16-3-92-99, EDN: YQYJVP

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Heading: 
Lithium electrochemical systems
Article type: 
Article
DOI: 
10.18500/1608-4039-2016-16-3-92-99
EDN: 
YQYJVP

Sodium-based compounds as hosts for reversible intercalation of lithium ions

Autors: 
Kosova N. V., Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS
Rezepova Dar'ya Olegovna, Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS
Abstract: 

УДК 541.136+546.33+544.463+541.138

DOI:  https://doi.org/10.18500/1608-4039-2016-16-3-92-99

In this work, we studied the cycling behavior of Na2FeP2O7, Na2FePO4F and Na3V2(PO4)2F3 with triclinic, orthorhombic and tetragonal structure in hybrid Na/Li electrochemical cells with Li anode and LiPF6-based electrolyte. The occurrence of electrochemical Nа+/Li+ ion exchange was established resulting in the formation of the new mixed Na-Li compositions with different degree of exchange: ?NaLiFeP2O7, NaLiFePO4F and ? Na2.5Li0.5V2(PO4)2F3. All materials showed high capacity and stability upon cycling.

Key words: 
Na2FeP2O7
Na2FePO4F
Na3V2(PО4)2F3
electrochemical intercalation
hybrid batteries.
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Received: 
19.09.2016
Accepted: 
19.09.2016
Published: 
30.11.2016