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Batteries 2018, 4(4), 61; https://doi.org/10.3390/batteries4040061

Sodium Rechargeable Batteries with Electrolytes Based on Nafion Membranes Intercalated by Mixtures of Organic Solvents

1
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 31-4, Leninskii Prospect, Moscow 119071, Russia
2
Skolkovsky Institute of Science and Technology, 3, ul. Nobel, Moscow 121205, Russia
3
N.S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31, Leninskii Prospect, Moscow 119991, Russia
4
Lomonosov Moscow State University, 1 Leninskie gory, Moscow 119991, Russia
*
Author to whom correspondence should be addressed.
Received: 17 October 2018 / Revised: 29 October 2018 / Accepted: 31 October 2018 / Published: 1 December 2018
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Abstract

The possibilities of manufacturing batteries with Nafion 117 membranes in the Na+-form intercalated by mixtures of non-aqueous organic solvents used both as an electrolyte, separator, and binder were investigated. Electrochemical stability of various organic solvent mixtures based on N,N-dimethylacetamide, ethylene carbonate, propylene carbonate, and tetrahydrofuran were characterized. It was shown that a sodium battery based on a Nafion-Na membrane intercalated by mixture of ethylene carbonate and propylene carbonate with a Na3V1.9Fe0.1(PO4)3/C positive electrode is characterized by a discharge capacity of ≈110 mAh·g−1 (current density of 10 mA·g−1) at room temperature and shows the ability to cycle without degradation during 20 cycles. Batteries with Nafion membrane electrolytes, containing N,N-dimethylacetamide, were characterized using capacity fading during cycling, which is due to the interaction of N,N-dimethylacetamide and a negative sodium electrode. View Full-Text
Keywords: sodium rechargeable battery; polymer electrolyte; Nafion; cycle stability; electrochemical stability sodium rechargeable battery; polymer electrolyte; Nafion; cycle stability; electrochemical stability
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Kulova, T.; Skundin, A.; Chekannikov, A.; Novikova, S.; Voropaeva, D.; Yaroslavtsev, A. Sodium Rechargeable Batteries with Electrolytes Based on Nafion Membranes Intercalated by Mixtures of Organic Solvents. Batteries 2018, 4, 61.

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